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CN114810762B - Light engine assembling device and assembling method - Google Patents

Light engine assembling device and assembling method Download PDF

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Publication number
CN114810762B
CN114810762B CN202210355884.7A CN202210355884A CN114810762B CN 114810762 B CN114810762 B CN 114810762B CN 202210355884 A CN202210355884 A CN 202210355884A CN 114810762 B CN114810762 B CN 114810762B
Authority
CN
China
Prior art keywords
micro display
color combining
combining prism
display chip
imaging lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210355884.7A
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Chinese (zh)
Other versions
CN114810762A (en
Inventor
汤善祥
周子彬
胡洪程
余成龙
林竞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Liankun Intelligent Technology Co ltd
Original Assignee
Jiangxi Liankun Intelligent Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangxi Liankun Intelligent Technology Co ltd filed Critical Jiangxi Liankun Intelligent Technology Co ltd
Priority to CN202210355884.7A priority Critical patent/CN114810762B/en
Publication of CN114810762A publication Critical patent/CN114810762A/en
Application granted granted Critical
Publication of CN114810762B publication Critical patent/CN114810762B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
    • F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C13/00—Means for manipulating or holding work, e.g. for separate articles
    • B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
    • B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

The equipment comprises a workbench, a mounting rack, a first adjusting mechanism, a first operating platform, a second adjusting mechanism and a second operating platform; adjusting the color combining prism through a second adjusting mechanism so that the imaging lens corresponds to the position of the output surface of the color combining prism; after clamping the micro display chip with the periphery being glued and electrified, the first operation desk collects pictures through the image sensor to adjust the first adjusting mechanism to perform active alignment, solidification and separation of the micro display chip and the imaging lens; and (3) keeping the color combining prism provided with the micro display chip away from the imaging lens, dispensing the output surface of the color combining prism, collecting pictures through an image sensor to adjust a second adjusting mechanism, and actively aligning, solidifying and separating the color combining prism provided with the micro display chip and the imaging lens to finish the assembly of the optical engine. The application can ensure high position matching precision among the micro display chip, the color combining prism and the imaging lens in the light engine and is convenient to assemble and operate.

Description

Light engine assembling device and assembling method
Technical Field
The invention belongs to the technical field of light engine packaging, and particularly relates to light engine assembling equipment and an assembling method for assembling a light engine by adopting the light engine assembling equipment.
Background
In recent years, with the advent of micro display chip technology, miniaturization and high resolution projection display have become possible. Large field of view, high imaging quality, small volume, wearable miniature projection light engines are becoming more and more important, especially in the optical fields of augmented reality (Augmented reality, abbreviated as AR), near-eye display (Near-EYE DISPLAY, abbreviated as NED) and wearable, which are now being developed in focus.
The miniature projection light engine in the prior art is the most critical component in a projection imaging system; in order to realize color display, a color combining device such as an X-Cube (X-Cube) is generally used to combine three primary color polarized lights (micro display chips) from three light paths into the same light path, and then the three primary color polarized lights are projected through an imaging lens.
Currently, in the assembly process of the micro projection light engine, three primary color polarized lights (micro display chips) from three light paths are combined into the same light path through a color combining prism, namely, the position matching precision of the micro display chip, the color combining prism and the imaging lens determines the projection quality of the micro projection light engine. However, the assembly accuracy of the assembly device for the micro projection light engine in the prior art cannot reach the projection quality required by the micro projection light engine, and the assembly operation is complicated, thereby preventing the application range of the micro projection light engine.
Therefore, in order to solve the problem of the position matching precision of the micro display chip, the color combining prism and the imaging lens, it is necessary to design a light engine assembling device and an assembling method capable of realizing high assembling precision so as to meet the requirement on the projection quality of the micro projection light engine.
Disclosure of Invention
In order to solve the technical problems, the invention provides a light engine assembling device and an assembling method, which solve the problems of poor position matching precision and complicated assembling operation of a micro display chip, a color combining prism and an imaging lens in the existing light engine assembling device by adopting a multi-degree-of-freedom and high-precision adjusting mode of combining a first adjusting mechanism, a second adjusting mechanism, a first operating platform, a second operating platform and a mounting frame.
In a first aspect, the invention provides a light engine mounting apparatus comprising:
a work table;
the mounting frame is arranged on the workbench and is used for mounting an imaging lens of the light engine and fixing an image sensor which is arranged corresponding to the imaging lens;
the first adjusting mechanism is arranged on the workbench;
the first operation table is arranged on the first adjusting mechanism and used for clamping the micro display chip of the light engine;
The second adjusting mechanism is arranged on the workbench;
the second operation table is arranged on the second adjusting mechanism and is used for clamping the color combining prism of the light engine;
The second operation table is adjusted through the second adjusting mechanism to adjust the position of the color combining prism so that the imaging lens corresponds to the position of the output surface of the color combining prism; after the first operation table clamps the peripheral dispensing and electrified micro display chips, collecting pictures through the image sensor, adjusting the first adjusting mechanism to actively align the micro display chips with the imaging lens, and separating the first operation table from the micro display chips after the micro display chips are solidified on the color combining prism; and the second adjusting mechanism is used for enabling the color combining prism provided with the micro display chip to be far away from the imaging lens and dispensing an output surface of the color combining prism, collecting pictures through the image sensor, adjusting the second adjusting mechanism so as to actively align the color combining prism provided with the micro display chip with the imaging lens, and separating the second operating platform from the color combining prism after the imaging lens is solidified on the color combining prism provided with the micro display chip so as to complete the assembly of the optical engine.
Compared with the prior art, the invention has the beneficial effects that: firstly, the imaging lens corresponds to the position of the output surface of the color combining prism through the second adjusting mechanism; collecting the electrified and dispensing micro display chip by means of an image sensor, and actively aligning the dispensing micro display chip with an imaging lens through the first adjusting mechanism so as to fix the micro display chip and the color combining prism; and finally, collecting the electrified micro display chip by means of the image sensor, and actively aligning the color combining prism provided with the micro display chip with the imaging lens by the second adjusting mechanism, so that the high-precision assembly of the optical engine is completed, the high position matching precision among the micro display chip, the color combining prism and the imaging lens in the optical engine is ensured, and the assembly operation is convenient.
Preferably, the first operation panel includes locating mount pad on the first adjustment mechanism and locates laminating portion on the mount pad, be equipped with the clamping piece that closes the required laminating micro-display chip quantity of look prism and unanimous on the laminating portion.
Preferably, the three clamping pieces enclose a groove structure for accommodating the color combining prism, and the depth and the width of the groove structure are larger than the size of the corresponding position of the color combining prism.
Preferably, the mounting frame is erected above the first adjusting mechanism through a bracket, and the bracket is arranged on the workbench; one end of the mounting frame, which is far away from the bracket, is provided with a mounting block, two opposite surfaces of the mounting block are respectively provided with a fixing groove and a fixing hole, and the fixing grooves are communicated with the fixing holes; the imaging lens is arranged in the fixing hole and corresponds to the opening position of the groove structure, and the image sensor is arranged in the fixing groove.
Preferably, the clamping piece adopts one of magnetic attraction, air attraction and mechanical clamping modes.
Preferably, the second operation platform comprises a clamping frame arranged on the second adjusting mechanism and a screw rod in threaded connection with the clamping frame; the partial area of the clamping frame extends along the moving direction of the screw rod to form a supporting section, the color combining prism is arranged on the supporting section, one end of the color combining prism abuts against the clamping frame, and the other end of the color combining prism abuts against the screw rod, so that the color combining prism is clamped on the second operating table.
Preferably, the first adjusting mechanism comprises a first displacement adjusting module and a first angle adjusting module;
The first displacement adjusting module comprises a first X-axis sliding device, a first Y-axis sliding device and a first Z-axis sliding device, wherein the three sliding directions of the first X-axis sliding device, the first Y-axis sliding device and the first Z-axis sliding device are mutually perpendicular;
The first angle adjusting module comprises three first X-axis rotating devices, first Y-axis rotating devices and first Z-axis rotating devices, wherein the three first X-axis rotating devices, the first Y-axis rotating devices and the first Z-axis rotating devices are perpendicular to each other, the first Z-axis rotating devices are arranged on the workbench, and the first operating platform is arranged on the first Y-axis rotating devices;
the first Z axial rotating device, the first Z axial sliding device, the first X axial sliding device, the first Y axial sliding device, the first X axial rotating device and the first Y axial rotating device are sequentially stacked from bottom to top.
Preferably, the second adjusting mechanism comprises a second displacement adjusting module and a second angle adjusting module;
The second displacement adjusting module comprises three second X-axis sliding devices, second Y-axis sliding devices and second Z-axis sliding devices, the sliding directions of the second X-axis sliding devices, the second Y-axis sliding devices and the second Z-axis sliding devices are mutually perpendicular, and the second Z-axis sliding devices are arranged on the workbench;
The second angle adjusting module comprises a second X-axis rotating device and a second Y-axis rotating device, the two rotating shafts of which are perpendicular to each other, and the second operating platform is arranged on the second Y-axis rotating device;
The second Y axial sliding device is arranged on the second Z axial sliding device through a first L-shaped bracket, the second X axial sliding device is arranged on the second Y axial sliding device, the second X axial rotating device is arranged on the second X axial sliding device, and the second Y axial rotating device is arranged on the second X axial rotating device through a second L-shaped bracket.
Preferably, the device further comprises a curing lamp, wherein the curing lamp is movably arranged on the workbench.
In a second aspect, the present invention provides a light engine assembling method, specifically, the light engine assembling device in the first aspect, including the following steps:
s1: fixing the image sensor in the fixing groove, fixing the imaging lens in the fixing hole, and arranging the imaging lens corresponding to the opening position of the groove structure;
S2: clamping the color combining prism on the second operation table, and adjusting the position of the color combining prism through the second adjusting mechanism so that the imaging lens corresponds to the position of the output surface of the color combining prism;
S3: after dispensing the periphery of the first micro display chip, clamping the periphery of the first micro display chip by a first clamping piece, and simultaneously lighting the first micro display chip; the image sensor is used for collecting pictures, the first adjusting mechanism is adjusted to actively align the first micro display chip with the imaging lens, curing and irradiating the adhesive after alignment, and then separating the first micro display chip from the first clamping piece;
S4: after dispensing the periphery of the second micro display chip, clamping the second micro display chip by a second clamping piece, and simultaneously lighting the second micro display chip; the image sensor is used for collecting pictures, the first adjusting mechanism is adjusted to actively align the second micro display chip with the imaging lens, curing and irradiating the adhesive after alignment, and then separating the second micro display chip from the second clamping piece;
S5: after dispensing the periphery of the third micro display chip, clamping the periphery of the third micro display chip by a third clamping piece, and simultaneously lighting the third micro display chip; the image sensor is used for collecting pictures, the first adjusting mechanism is adjusted to actively align the third micro display chip with the imaging lens, curing and irradiating the adhesive after alignment, and then separating the third micro display chip from the third clamping piece;
S6: and adjusting the second adjusting mechanism, moving the assembled color combining prism away from the imaging lens, dispensing the position of the output surface of the color combining prism, collecting pictures through the image sensor, adjusting the second adjusting mechanism to perform active alignment operation on the color combining prism, performing curing irradiation on the dispensed glue after alignment, and taking out the clamped color combining prism from the second operation table to obtain the assembled light engine.
Compared with the prior art, the invention has the beneficial effects that: firstly, the imaging lens corresponds to the position of the output surface of the color combining prism through the second adjusting mechanism; the light of the electrified and dispensing micro display chip is collected by means of an image sensor, and the first adjusting mechanism is used for actively aligning the dispensing micro display chip with the imaging lens so as to fix the micro display chip with the color combining prism; finally, the image sensor is used for collecting the light rays of the electrified micro display chip, and the second adjusting mechanism is used for actively aligning the color combining prism provided with the micro display chip with the imaging lens, so that the high-precision assembly of the optical engine is completed, the high position matching precision among the micro display chip, the color combining prism and the imaging lens in the optical engine is ensured, and the assembly operation is convenient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a perspective view of a light engine assembled by the light engine assembling apparatus provided in embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of optical propagation of a light engine according to embodiment 1 of the present invention;
FIG. 3 is a perspective view of the light engine mounting apparatus provided in embodiment 1 of the present invention;
fig. 4 is a perspective view of a first console according to embodiment 1 of the present invention;
fig. 5 is a perspective view of a mounting frame according to embodiment 1 of the present invention;
fig. 6 is a perspective view of a second console according to embodiment 1 of the present invention;
Fig. 7 is a perspective view of a first adjusting mechanism according to embodiment 1 of the present invention;
FIG. 8 is an enlarged schematic view of a portion of the symbol A of FIG. 7;
FIG. 9 is an assembly diagram of a first Z-axis sliding device and a first Z-axis rotating device according to embodiment 1 of the present invention;
Fig. 10 is a perspective view of a first X-axis rotating device according to embodiment 1 of the present invention;
Fig. 11 is a perspective view of a second adjusting mechanism provided in embodiment 1 of the invention;
Fig. 12 is a flowchart of a method for assembling a light engine by the light engine assembling apparatus according to embodiment 1 of the present invention.
Reference numerals illustrate:
the color combining prism, the 2-first micro display chip, the 3-second micro display chip, the 4-third micro display chip and the 5-imaging lens are arranged on the same plane;
10-a workbench and 11-a bracket;
20-mounting frames, 21-mounting blocks, 211-fixing grooves and 212-image sensors;
30-a first operation table, 31-a mounting seat, 32-a fitting part, 321-a first clamping piece, 322-a second clamping piece and 323-a third clamping piece;
40-first adjustment mechanism, 41-first displacement adjustment module, 411-first X axial sliding device, 4111-sliding slide, 4112-sliding slide, 4113-second differential head, 412-first Y axial sliding device, 413-first Z axial sliding device, 4131-wedge slide, 4132-wedge slide, 4133-motor, 42-first angle adjustment module, 421-first X axial rotation device, 4211-rotation slide, 4212-rotation slide, 4213-third differential head, 422-first Y axial rotation device, 423-first Z axial rotation device, 4231-rotation base, 4232-rotation turntable, 4233-first differential head;
50-second operation table, 51-clamping frame, 512-supporting section and 52-screw;
60-second adjusting mechanism, 61-second displacement adjusting module, 611-second X axial sliding device, 612-second Y axial sliding device, 613-second Z axial sliding device, 614-first L-shaped bracket, 62-second angle adjusting module, 621-second X axial rotating device, 622-second Y axial rotating device, 623-second L-shaped bracket;
70-curing lamps.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the invention and should not be construed as limiting the invention.
In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present invention and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the embodiments of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present invention will be understood by those of ordinary skill in the art according to specific circumstances.
The embodiment of the application provides light engine assembling equipment which comprises a workbench, a first operation table, a second operation table, a mounting rack, a first adjusting mechanism, a second adjusting mechanism and a curing lamp, wherein the mounting rack, the first adjusting mechanism, the second adjusting mechanism and the curing lamp are arranged on the workbench; the mounting frame is arranged above the first adjusting mechanism through a bracket, and the bracket is arranged on the workbench. Specifically, the mounting frame is used for mounting an imaging lens of the light engine and fixing an image sensor which is arranged corresponding to the imaging lens; the first operation table is used for clamping a micro display chip of the light engine; the second operation table is used for clamping the color combining prism of the light engine.
Example 1
The present embodiment provides a light engine assembling apparatus, whose light engine structure to be assembled is shown in fig. 1. The light engine comprises a color combining prism 1, a first micro display chip 2, a second micro display chip 3, a third micro display chip 4 and an imaging lens 5, wherein the first micro display chip 2, the second micro display chip 3 and the third micro display chip 4 are respectively arranged on the color combining prism 1. The color combining prism 1 is in a hexahedral structure, the first micro display chip 2 and the third micro display chip 4 are respectively located on two opposite sides of the color combining prism 1, the second micro display chip 3 and the imaging lens 5 are respectively located on the other two opposite sides of the color combining prism 1, and in addition, the other two opposite sides of the color combining prism 1 are used as clamping surfaces for clamping the color combining prism 1 in the process of assembling the optical engine. In the specific implementation process, the first micro display chip 2, the second micro display chip 3, the third micro display chip 4 and the imaging lens 5 are fixed on the color combining prism 1 in a mode of curing after dispensing. It should be noted that the accuracy requirement of the light engine assembling device is that the central axes of the light rays emitted by the first micro display chip 2, the second micro display chip 3 and the third micro display chip 4 after being transmitted by the color combining prism 1 are coincident with the central axis of the imaging lens 5, which can be shown in fig. 2.
Fig. 3 shows a light engine assembling device for assembling the light engine shown in fig. 1, which comprises a workbench 10, a first operation platform 30, a second operation platform 50, a mounting frame 20 arranged on the workbench 10, a first adjusting mechanism 30, a second adjusting mechanism 60 and a curing light 70. In this embodiment, the first operating platform 30 is disposed on the first adjusting mechanism 40, the second operating platform 50 is disposed on the second adjusting mechanism 60, the mounting frame 20 is erected above the first adjusting mechanism 40 via a bracket 11, and the bracket 11 is disposed on the workbench 10. In addition, the curing lamp 70 is movably disposed on the workbench 10, so that the position of the heating light source of the curing lamp 70 can be optionally adjusted to cure the dispensing.
As shown in fig. 4, the first console 30 includes a mounting seat 31 provided on the first adjusting mechanism 40 and a bonding portion 32 provided on the mounting seat 31, and the bonding portion 32 is provided with a first clamping member 321, a second clamping member 322, and a third clamping member 323. In specific implementation, the three clamping pieces enclose a groove structure for accommodating the color combining prism 1, and the depth and the width of the groove structure are larger than the size of the corresponding position of the color combining prism 1. In this embodiment, the first clamping member 321, the second clamping member 322, and the third clamping member 323 are suction nozzles. Of course, other embodiments may employ magnets or claws, as long as they are capable of holding the micro display chip, as long as they are within the scope of the present invention.
As shown in fig. 5, a mounting block 21 is disposed at an end of the mounting frame 20 away from the bracket 11, two opposite sides of the mounting block 21 are respectively provided with a fixing slot 211 and a fixing hole (not shown), and the fixing slot 211 is communicated with the fixing hole; the imaging lens 5 is disposed in the fixing hole and corresponds to the opening of the groove structure, and the image sensor 212 is disposed in the fixing groove 211. In practice, the image sensor 212 collects light information in the imaging lens 5 to assist in assembling the light engine.
As shown in fig. 6, the second operation table 50 includes a clamping frame 51 provided on the second adjusting mechanism 60 and a screw 52 screwed to the clamping frame 51; wherein, a partial area of the clamping frame 51 extends along the moving direction of the screw 52 to form a supporting section 512, the color combining prism 1 is disposed on the supporting section 512, one end of the color combining prism abuts against the clamping frame 51, and the other end abuts against the screw 52, so that the color combining prism 1 is clamped on the second operating table 50. In a specific implementation, the second adjusting mechanism 60 adjusts the second operating platform 50 to adjust the position of the color combining prism 1, so that the imaging lens 5 corresponds to the output surface position of the color combining prism 1.
As shown in fig. 7, the first adjustment mechanism 40 includes a first displacement adjustment module 41 and a first angle adjustment module 42. In this embodiment, the first displacement adjustment module 41 and the first angle adjustment module 42 are combined, so that the first console 30 mounted thereon can achieve six degrees of freedom adjustment. Wherein, the first displacement adjustment module 41 comprises three first X-axis sliding devices 411, a first Y-axis sliding device 412 and a first Z-axis sliding device 413, the sliding directions of which are perpendicular to each other; the first angle adjusting module 42 includes three first X-axis rotating devices 421, a first Y-axis rotating device 422, and a first Z-axis rotating device 423, each of which has a rotation axis perpendicular to each other; preferably, the first operating table 30 is rotated around its central position by the first X-axis rotating means 421 and the first Y-axis rotating means 422. Specifically, the first Z-axis rotating device 423, the first Z-axis sliding device 413, the first X-axis sliding device 411, the first Y-axis sliding device 412, the first X-axis rotating device 421, and the first Y-axis rotating device 422 are stacked in order from bottom to top. The first Z-axis rotating device 423 is disposed on the table 10, and the first operating table 30 is disposed on the first Y-axis rotating device 422.
As shown in fig. 8, the first X-axis sliding device 411 includes a sliding carriage 4111, a sliding block 4112 provided on the sliding carriage, and a second micro head 4113; preferably, the precision of the second micro head 4113 is 0.1 μm. In this embodiment, the contact surfaces of the sliding slider 4112 and the sliding carriage 4111 are mutually matched planes. Specifically, by rotating the second differential head 4113 to push the sliding slider 4112 to slide with respect to the sliding slider 4111, the first console 30 is moved in the X-axis direction.
Further, the structural form of the first Y-axis sliding device 412 is the same as that of the first X-axis sliding device 411, and will not be described in detail herein. Of course, the first Y-axis sliding device 412 is used to implement the movement adjustment of the first console 30 along the Y-axis direction.
As shown in fig. 9, the first Z-axis sliding device 413 includes a wedge sliding table 4131 slidably provided on the first Z-axis rotating device 423, a wedge sliding table 4132 mated with the wedge sliding table 4131, and a motor 4133 connected with the wedge sliding table 4131; preferably, the motor 4133 is a servo motor. In this embodiment, the contact surfaces of the wedge sled 4131 and the wedge sled 4132 are mutually matched wedge surfaces. Specifically, the motor 4133 pushes the wedge-shaped sliding table 4131 to slide, and drives the wedge-shaped sliding seat 4132 to lift along the Z-axis direction, so as to realize movement adjustment of the first operating table 30 along the Z-axis direction.
As shown in fig. 10, the first X-axis rotating device 421 includes a rotating slide 4211, a rotating slide 4212 provided on the rotating slide, and a third micro head 4213; preferably, the precision of the third micro head 4213 is 0.02 °. In this embodiment, the contact surfaces of the rotating slider 4212 and the rotating slider 4211 are curved surfaces that are matched with each other; the rotation about the center of the first operation table 30 is achieved by the curved concave surface of the contact surface facing the center of the first operation table 30, and the rotation about the center of the first operation table 30 cannot be achieved by the curved convex surface of the contact surface facing the center of the first operation table 30. Specifically, by rotating the third differential head 4213 to push the rotation slider 4212 to rotate with respect to the rotation slider 4211, the angular adjustment of the first operation table 30 in the X-axis direction is achieved.
Further, the structural form of the first Y-axis rotating device 422 is the same as that of the first X-axis rotating device 421, and will not be described in detail herein; the rotation about the center of the first operation table 30 is achieved by the curved concave surface of the contact surface facing the center of the first operation table 30, and the rotation about the center of the first operation table 30 cannot be achieved by the curved convex surface of the contact surface facing the center of the first operation table 30. Of course, the first Y-axis rotating device 422 is used to implement the angular adjustment of the first console 30 in the Y-axis direction.
As shown in fig. 9, the first Z-axis rotating device 423 includes a rotating base 4231 provided on the table 10, a rotating turntable 4232 provided on the rotating base, and a first micro head 4233; preferably, the precision of the first micro head 4233 is 0.02 °. In this embodiment, the first micro head 4233 is rotated to push the rotary table 4232 to rotate relative to the rotary base 4231, so as to implement the angle adjustment of the first console 30 in the Z-axis direction.
As shown in fig. 11, the second adjustment mechanism 60 includes a second displacement adjustment module 61 and a second angle adjustment module 62. In this embodiment, the second operation table 50 mounted thereon realizes five degrees of freedom adjustment by the combined structure of the second displacement adjustment module 61 and the second angle adjustment module 62. Wherein the second displacement adjustment module 61 includes three second X-axis sliding devices 611, a second Y-axis sliding device 612, and a second Z-axis sliding device 613, which have sliding directions perpendicular to each other; the second angle adjusting module 62 includes two second X-axis rotating devices 621 and a second Y-axis rotating device 622, which have rotation axes perpendicular to each other; preferably, the second operation table 50 is rotated around the center of the clamping end thereof by the second X-axis rotating means 621 and the second Y-axis rotating means 622. Specifically, the second Z-axial sliding device 613 is disposed on the table 10, the second Y-axial sliding device 612 is disposed on the second Z-axial sliding device 613 through a first L-shaped bracket 614, the second X-axial sliding device 611 is disposed on the second Y-axial sliding device 612, the second X-axial rotating device 621 is disposed on the second X-axial sliding device 622, the second Y-axial rotating device 622 is disposed on the second X-axial rotating device 621 through a second L-shaped bracket 623, and the second operating table 50 is disposed on the second Y-axial rotating device 622.
Further, the second X-axis sliding device 611 has a structural form similar to that of the first X-axis sliding device 411, which will not be described in detail herein. Of course, the second X-axis sliding device 611 is used to implement the movement adjustment of the color combining prism 1 clamped by the second console 50 along the X-axis direction.
Further, the second Y-axis sliding device 612 has a structure similar to that of the first X-axis sliding device 411, and will not be described in detail herein. Of course, the second Y-axis sliding device 612 is used to implement the movement adjustment of the color combining prism 1 clamped by the second console 50 along the Y-axis direction.
Further, the structural form of the second Z-axis sliding device 613 is the same as that of the first X-axis sliding device 411, and will not be described in detail herein. Of course, the second Z-axis sliding device 613 is used to implement the movement adjustment of the color combining prism 1 clamped by the second console 50 along the Z-axis direction.
Further, the second X-axis rotating device 621 is the same as the first X-axis rotating device 421, and will not be described in detail herein; the rotation about the center of the second operation table 50 is achieved by the curved concave surface of the contact surface facing the center of the second operation table 50, and the rotation about the center of the second operation table 50 cannot be achieved by the curved convex surface of the contact surface facing the center of the second operation table 50. Of course, the second X-axis rotating device 611 is used to implement the angular adjustment of the color combining prism 1 clamped by the second console 50 in the X-axis direction.
Further, the second Y-axis rotating device 612 is identical to the first X-axis rotating device 621, and will not be described in detail herein; the rotation about the center of the second operation table 50 is achieved by the curved concave surface of the contact surface facing the center of the second operation table 50, and the rotation about the center of the second operation table 50 cannot be achieved by the curved convex surface of the contact surface facing the center of the second operation table 50. Of course, the second Y-axis rotating device 622 is used to implement the angular adjustment of the color combining prism 1 clamped by the second console 50 in the Y-axis direction.
As shown in fig. 12, the light engine assembling apparatus adopting the present embodiment, the specific assembling method thereof includes the steps of:
s1: the image sensor is fixed in the fixing groove, the imaging lens is fixed in the fixing hole, and the imaging lens is arranged corresponding to the opening position of the groove structure.
Specifically, a threaded hole communicated with the fixing groove and the fixing hole is formed in the mounting frame, the image sensor is locked in the fixing groove through the threaded knob, and the imaging lens is locked in the fixing hole.
S2: and clamping the color combining prism on the second operation table, and adjusting the position of the color combining prism through the second adjusting mechanism so that the imaging lens corresponds to the position of the output surface of the color combining prism.
Specifically, firstly, the color combining prism is arranged on the supporting section, one end of the color combining prism is abutted against the clamping frame, and the other end of the color combining prism is abutted against the screw rod, so that the color combining prism is clamped on the second operation table; and secondly, the second operation platform arranged on the second operation platform realizes the adjustment of five degrees of freedom by the structural mode of combining the second displacement adjustment module and the second angle adjustment module, so that the imaging lens corresponds to the position of the output surface of the color combining prism.
S3: after dispensing the periphery of the first micro display chip, clamping the periphery of the first micro display chip by a first clamping piece, and simultaneously lighting the first micro display chip; and acquiring pictures through an image sensor, adjusting the first adjusting mechanism to actively align the first micro display chip with the imaging lens, solidifying and irradiating the adhesive after aligning, and separating the first micro display chip from the first clamping piece.
Specifically, by the structural mode that the first displacement adjusting module and the first angle adjusting module are combined, the first operation table installed on the first displacement adjusting module can realize adjustment of six degrees of freedom, and the first micro display chip and the imaging lens can be actively aligned.
S4: after dispensing the periphery of the second micro display chip, clamping the second micro display chip by a second clamping piece, and simultaneously lighting the second micro display chip; and acquiring pictures through an image sensor, adjusting the first adjusting mechanism to actively align the second micro display chip with the imaging lens, curing and irradiating the adhesive after aligning, and separating the second micro display chip from the second clamping piece.
S5: after dispensing the periphery of the third micro display chip, clamping the periphery of the third micro display chip by a third clamping piece, and simultaneously lighting the third micro display chip; and acquiring pictures through an image sensor, adjusting the first adjusting mechanism to actively align the third micro display chip with the imaging lens, solidifying and irradiating the adhesive after aligning, and separating the third micro display chip from the third clamping piece.
S6: and adjusting the second adjusting mechanism, moving the assembled color combining prism away from the imaging lens, dispensing the position of the output surface of the color combining prism, collecting pictures through the image sensor, adjusting the second adjusting mechanism to perform active alignment operation on the color combining prism, performing curing irradiation on the dispensed glue after alignment, and taking out the clamped color combining prism from the second operation table to obtain the assembled light engine.
Specifically, through the structural mode that second displacement adjustment module and second angle adjustment module combine together for install on it the second operation panel realizes five degrees of freedom's regulation, realizes that imaging lens and the color combining prism after the assembly carry out initiative alignment operation.
In summary, the second adjusting mechanism is used to make the imaging lens correspond to the output surface of the color combining prism; the light of the electrified and dispensing micro display chip is collected by means of an image sensor, and the first adjusting mechanism is used for actively aligning the dispensing micro display chip with the imaging lens so as to fix the micro display chip with the color combining prism; finally, the image sensor is used for collecting the light rays of the electrified micro display chip, and the second adjusting mechanism is used for actively aligning the color combining prism provided with the micro display chip with the imaging lens, so that the high-precision assembly of the optical engine is completed, the high position matching precision among the micro display chip, the color combining prism and the imaging lens in the optical engine is ensured, and the assembly operation is convenient.
Example 2
The difference between this embodiment and embodiment 1 is that the assembled light engine has two micro-display chips, and the corresponding attaching portion includes a first clamping member and a second clamping member. In specific implementation, two clamping pieces enclose an L-shaped structure.
Example 3
The difference between this embodiment and embodiment 1 is that the assembled light engine has a micro display chip, and the attaching portion includes a first clamping member. The first clamping piece is arranged corresponding to the position where the color combining prism is required to be provided with the micro display chip.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (9)

1. A light engine mount apparatus, comprising:
a work table;
the mounting frame is arranged on the workbench and is used for mounting an imaging lens of the light engine and fixing an image sensor which is arranged corresponding to the imaging lens;
the first adjusting mechanism is arranged on the workbench;
the first operation table is arranged on the first adjusting mechanism and used for clamping the micro display chip of the light engine;
The first operation table comprises a mounting seat arranged on the first adjusting mechanism and a fitting part arranged on the mounting seat, wherein the fitting part is provided with a groove structure surrounded by three clamping pieces or an L-shaped structure surrounded by two clamping pieces, and the clamping pieces are magnetic or air suction; the second adjusting mechanism is arranged on the workbench;
the second operation table is arranged on the second adjusting mechanism and is used for clamping the color combining prism of the light engine;
The second operation table is adjusted through the second adjusting mechanism to adjust the position of the color combining prism so that the imaging lens corresponds to the position of the output surface of the color combining prism; after the first operation table clamps the peripheral dispensing and electrified micro display chips, collecting pictures through the image sensor, adjusting the first adjusting mechanism to actively align the micro display chips with the imaging lens, and separating the first operation table from the micro display chips after the micro display chips are solidified on the color combining prism; and the second adjusting mechanism is used for enabling the color combining prism provided with the micro display chip to be far away from the imaging lens and dispensing an output surface of the color combining prism, collecting pictures through the image sensor, adjusting the second adjusting mechanism so as to actively align the color combining prism provided with the micro display chip with the imaging lens, and separating the second operating platform from the color combining prism after the imaging lens is solidified on the color combining prism provided with the micro display chip so as to complete the assembly of the optical engine.
2. The light engine assembling apparatus according to claim 1, wherein the attaching portion is provided with a plurality of holding members for attaching the color combining prism to the micro display chips in a consistent number.
3. The light engine assembling apparatus of claim 2, wherein the depth and width of the groove structure is greater than the dimensions of the color combining prism at the corresponding location.
4. A light engine assembling apparatus as recited in claim 3, wherein said mounting bracket is mounted above said first adjustment mechanism via a bracket, said bracket being mounted on said table; one end of the mounting frame, which is far away from the bracket, is provided with a mounting block, two opposite surfaces of the mounting block are respectively provided with a fixing groove and a fixing hole, and the fixing grooves are communicated with the fixing holes; the imaging lens is arranged in the fixing hole and corresponds to the opening position of the groove structure, and the image sensor is arranged in the fixing groove.
5. The light engine assembling apparatus according to claim 1, wherein the second operation table includes a clamping frame provided on the second adjusting mechanism and a screw threadedly connected to the clamping frame; the partial area of the clamping frame extends along the moving direction of the screw rod to form a supporting section, the color combining prism is arranged on the supporting section, one end of the color combining prism abuts against the clamping frame, and the other end of the color combining prism abuts against the screw rod, so that the color combining prism is clamped on the second operating table.
6. The light engine mount apparatus of claim 1, wherein the first adjustment mechanism comprises a first displacement adjustment module and a first angle adjustment module;
The first displacement adjusting module comprises a first X-axis sliding device, a first Y-axis sliding device and a first Z-axis sliding device, wherein the three sliding directions of the first X-axis sliding device, the first Y-axis sliding device and the first Z-axis sliding device are mutually perpendicular;
The first angle adjusting module comprises three first X-axis rotating devices, first Y-axis rotating devices and first Z-axis rotating devices, wherein the three first X-axis rotating devices, the first Y-axis rotating devices and the first Z-axis rotating devices are perpendicular to each other, the first Z-axis rotating devices are arranged on the workbench, and the first operating platform is arranged on the first Y-axis rotating devices;
the first Z axial rotating device, the first Z axial sliding device, the first X axial sliding device, the first Y axial sliding device, the first X axial rotating device and the first Y axial rotating device are sequentially stacked from bottom to top.
7. The light engine mount apparatus of claim 1, wherein the second adjustment mechanism comprises a second displacement adjustment module and a second angle adjustment module;
The second displacement adjusting module comprises three second X-axis sliding devices, second Y-axis sliding devices and second Z-axis sliding devices, the sliding directions of the second X-axis sliding devices, the second Y-axis sliding devices and the second Z-axis sliding devices are mutually perpendicular, and the second Z-axis sliding devices are arranged on the workbench;
The second angle adjusting module comprises a second X-axis rotating device and a second Y-axis rotating device, the two rotating shafts of which are perpendicular to each other, and the second operating platform is arranged on the second Y-axis rotating device;
The second Y axial sliding device is arranged on the second Z axial sliding device through a first L-shaped bracket, the second X axial sliding device is arranged on the second Y axial sliding device, the second X axial rotating device is arranged on the second X axial sliding device, and the second Y axial rotating device is arranged on the second X axial rotating device through a second L-shaped bracket.
8. A light engine mounting apparatus as recited in any one of claims 1-7, further comprising a curing light movably disposed on the workstation.
9. A light engine assembly method, performed by the light engine assembly apparatus of claim 4, comprising the steps of:
s1: fixing the image sensor in the fixing groove, fixing the imaging lens in the fixing hole, and arranging the imaging lens corresponding to the opening position of the groove structure;
S2: clamping the color combining prism on the second operation table, and adjusting the position of the color combining prism through the second adjusting mechanism so that the imaging lens corresponds to the position of the output surface of the color combining prism;
S3: after dispensing the periphery of the first micro display chip, clamping the periphery of the first micro display chip by a first clamping piece, and simultaneously lighting the first micro display chip; the image sensor is used for collecting pictures, the first adjusting mechanism is adjusted to actively align the first micro display chip with the imaging lens, curing and irradiating the adhesive after alignment, and then separating the first micro display chip from the first clamping piece;
S4: after dispensing the periphery of the second micro display chip, clamping the second micro display chip by a second clamping piece, and simultaneously lighting the second micro display chip; the image sensor is used for collecting pictures, the first adjusting mechanism is adjusted to actively align the second micro display chip with the imaging lens, curing and irradiating the adhesive after alignment, and then separating the second micro display chip from the second clamping piece;
S5: after dispensing the periphery of the third micro display chip, clamping the periphery of the third micro display chip by a third clamping piece, and simultaneously lighting the third micro display chip; the image sensor is used for collecting pictures, the first adjusting mechanism is adjusted to actively align the third micro display chip with the imaging lens, curing and irradiating the adhesive after alignment, and then separating the third micro display chip from the third clamping piece;
S6: and adjusting the second adjusting mechanism, moving the assembled color combining prism away from the imaging lens, dispensing the position of the output surface of the color combining prism, collecting pictures through the image sensor, adjusting the second adjusting mechanism to perform active alignment operation on the color combining prism, performing curing irradiation on the dispensed glue after alignment, and taking out the clamped color combining prism from the second operation table to obtain the assembled light engine.
CN202210355884.7A 2022-04-06 2022-04-06 Light engine assembling device and assembling method Active CN114810762B (en)

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