A kind of device and method for being used to manufacture Fresnel lenses
Technical field
The invention belongs to Fresnel lenses technical field, more particularly to a kind of device and side for being used to manufacture Fresnel lenses
Method.
Background technology
It is well known that Fresnel lenses, such as Fresnel Lenses are frequently used in display technology field, it can be by
The diverging light that light source is sent is converted into directional light, improves the brightness of display panel surrounding, sun spot effect is eliminated, so as to improve whole
The uniformity of body display brightness.It follows that Fresnel Lenses important role in display technology field.
At present, existing Fresnel Lenses is manufactured using die casting mode mostly.But, the shortcoming of this manufacture method
It is cost to be dramatically increased when manufacturing large-sized Fresnel Lenses, while can also reduce efficiency.
In addition, Chinese patent CN101661120A discloses Fresnel Lenses and its manufacture method and device, disclosed in it
A kind of manufacture method use rotary pushing method.This rotary pushing method is to be pressed into semi-solid preparation by profiled sheeting
Resin plate in, fixing point (center of circle of concentric structure i.e. to be processed) then on resin plate rotation, so that in the tree
The structure of multiple radiuses concentric circles incremented by successively is formed on fat plate, the final curing resin plate completes the system of Fresnel Lenses
Make.However, because the resin plate of semi-solid preparation is difficult to be firmly fixed, therefore the larger tangential force meeting produced in rotary course
The resin plate is shifted over or is offset, cause the Fresnel Lenses produced unqualified.
The content of the invention
In order to solve above-mentioned part or all of problem, the present invention provides a kind of device and side for being used to manufacture Fresnel lenses
Method, it can be effectively prevented from the resin plate substrate of the present invention (i.e.) during manufacture Fresnel lenses and be shifted over or partially
Move, so as to avoid the qualification rate of reduction manufacture Fresnel lenses.
In order to realize the purpose of the present invention, the invention provides a kind of device for being used to manufacture Fresnel lenses, including base
Seat and circular cone pressure roller.Wherein, the substrate of Fresnel lenses is located on pedestal;And circular cone pressure roller is arranged on the top of pedestal, and
Can do around own axes rotation and relative to pedestal around circular cone pressure roller sophisticated revolution motion, on substrate roll
Go out multiple radiuses concentric circles incremented by successively or isocentric circular arc structure.Circular cone pressure roller relies primarily on vertical pressure and rolled on substrate
Multiple radiuses concentric circles incremented by successively or isocentric circular arc structure are extruded, therefore it will not produce larger tangential force to promote substrate
It is shifted over or offsets, can be so effectively prevented from the qualification rate of reduction manufacture Fresnel lenses.
Improved as a kind of the of the device for being used to manufacture Fresnel lenses of the present invention, circular cone pressure roller includes cone, one
The axially spaced ring roll piece being opened on the periphery of cone of series.Cone and ring roll piece are formed in one,
Or ring roll piece is fixed on cone.The characteristic that can be rotated using cone around tip, contributes to circular cone pressure roller to realize
Revolution motion, then circular cone pressure roller can with using ring roll piece rolled out on substrate each corresponding concentric circles or with one heart
Arc structure.
Improved as a kind of the of the device for being used to manufacture Fresnel lenses of the present invention, pedestal is included for bearing substrate
Surface, the actuating unit rotated in the horizontal plane for driving surface.Wherein, the rotary middle point on surface is the point of circular cone pressure roller
Hold the vertical subpoint in surface.Therefore, the production of Fresnel lenses can effectively be adjusted by adjusting the rotating speed on surface
Speed.
In addition, can also further it change for the pedestal of the device for manufacturing Fresnel lenses of the present invention
Enter, pedestal includes multiple surfaces being spaced apart from each other, and for multiple surfaces for carrying substrate to be intermittently sent to
The drive mechanism in machining position that can be rolled into by circular cone pressure roller.Thus, the continuous production of the device is advantageously implemented, and then
Improve production efficiency.
Improved as a kind of the of the device for being used to manufacture Fresnel lenses of the present invention, said apparatus also includes:For court
The spraying component of the lens materials of liquid is sprayed on pedestal;For the solidification the lens materials solidification after being rolled by circular cone pressure roller
Component.Wherein, transparent material is identical with the material of transparency carrier, preferably polyolefine material.The lens materials of spraying are used for shape
Into the substrate or the Worker's Stadium to be added of semi-solid preparation of semi-solid preparation, so that circular cone pressure roller rolls out each corresponding concentric circles thereon or same
Heart arc structure.After rolling over, solidification component is used to the lens materials after being rolled by circular cone pressure roller solidify, and is so conducive to subtracting
Less the time needed for manufacture Fresnel lenses, improve production efficiency.
Preferably, spraying component and solidification component are configured to that circular cone pressure roller can be followed to do synchronous revolution.Wherein conical pressure
Roller is located between spraying component and solidification component in the circumferential.The automaticity of the device can be so effectively improved, from
And production efficiency is further improved, save the cost of manufacture Fresnel lenses.
Improved as a kind of the of the device for being used to manufacture Fresnel lenses of the present invention, pedestal includes being used for around own axes
The smooth roll rotated along the direction opposite with the rotation of circular cone pressure roller, substrate clamping is between smooth roll and circular cone pressure roller.Wherein, smooth roll structure
Cause that circular cone pressure roller can be followed to do synchronous revolution.The setting of this double-roll type, can promote the integrated model of the device compact, drop
The low cost for producing the device.Preferably, smooth roll is the plain roller of cone, and identical with the principle of circular cone pressure roller, it can also
It is easy to smooth roll to do synchronous revolution motion with circular cone pressure roller.
The device for being used to manufacture Fresnel lenses of the present invention, for manufacturing with multiple radiuses concentric circles incremented by successively
Or the Fresnel lenses of isocentric circular arc structure, such as Fresnel Lenses and Fresnel reflective mirror.Pedestal where by adjusting substrate
On position and substrate shape, it is possible to produce circular, semicircle or polygonal Fresnel lenses.Meanwhile, produce
Fresnel lenses can have multiple radiuses concentric circles incremented by successively or isocentric circular arc structure.
In order to preferably realize the purpose of the present invention, present invention also offers a kind of side for being used to manufacture Fresnel lenses
Method, including step:Substrate arranged between the pedestal and circular cone pressure roller of the device of the invention described above;By circular cone pressure roller around certainly
The rotation of body axis and relative to pedestal around the sophisticated revolution of circular cone pressure roller, multiple radiuses can be rolled out on substrate successively
Incremental concentric circles or isocentric circular arc structure.Rolled because the circular cone pressure roller of the present invention relies primarily on vertical pressure on substrate
Go out multiple radiuses concentric circles incremented by successively or isocentric circular arc structure, therefore it will not produce larger tangential force to promote substrate to send out
Raw displacement is offset, and can so be effectively prevented from the qualification rate of reduction manufacture Fresnel lenses.
Improved as a kind of the of the method for being used to manufacture Fresnel lenses of the present invention, the arrangement of substrate is including following
Three kinds.Arrangement 1, the lens materials of liquid is sprayed on pedestal, so as to form the substrate of semi-solid preparation.Arrangement 2,
Then the substrate arranged of solid-state is sprayed at the lens materials of liquid on substrate, on substrate between pedestal and circular cone pressure roller
Form the Worker's Stadium to be added of semi-solid preparation.Arrangement 3, the substrate arranged of solid-state between pedestal and circular cone pressure roller.Wherein, if
If choice arrangement mode 1 or 2, then part to be processed is made up of the lens materials of semi-solid preparation, therefore, it is possible to convenient circle
Cone pressure roller rolls out each corresponding concentric circles or isocentric circular arc structure on its body.And if choice arrangement mode 3,
So be accomplished by using the circular cone pressure roller after heating rolled out on the substrate of solid-state multiple radiuses concentric circles incremented by successively or
Isocentric circular arc structure.
Improved as a kind of the of the method for being used to manufacture Fresnel lenses of the present invention, after rolling over, by solidifying structure
The substrate or the Worker's Stadium to be added of semi-solid preparation after part solidification is rolled by circular cone pressure roller, so as to form Fresnel lenses.In this way,
Solidification process can effectively be accelerated, so as to improve the production efficiency of Fresnel lenses.
In this application, described horizontal plane is parallel to the face of substrate, and vertical, is perpendicular to the direction of horizontal plane.
In addition, described semi-solid preparation is interpreted as the state between liquid and solid-state.
According to the device and method for being used to manufacture Fresnel lenses of the present invention, multiple half are rolled out by circular cone pressure roller
The Fresnel lenses of footpath concentric circles incremented by successively or isocentric circular arc structure, lateral pressure is relied primarily in this manufacturing process
To manufacture Fresnel lenses, therefore, it will not produce larger tangential force to promote substrate to be shifted over or offset, it is possible thereby to have
Avoid to effect reducing the qualification rate of Fresnel lenses.In addition, compared with the rotary pushing method used on conventional art, the present invention
Be used to manufacture the device and methods of Fresnel lenses by way of the circular cone pressure roller of rotation is come rolled base sheet, can be effectively
The multiple radiuses for the Fresnel lenses produced concentric circles incremented by successively or isocentric circular arc structure is avoided burr occur, so that just
In producing surface more smooth Fresnel lenses.
In addition, the device and method for being used to manufacture Fresnel lenses of the invention, can not only produce circle, half
Circular or polygonal Fresnel lenses, and the Fresnel lenses produced can have multiple radiuses concentric circles incremented by successively
Or isocentric circular arc structure.Meanwhile, according to the present invention be used for manufacture the device and methods of Fresnel lenses, can according to spraying,
The order manufacture Fresnel lenses of rolling and solidification so that its automaticity is significantly improved, so that beneficial to raising production efficiency,
Save production cost.In addition, according to the device and method for being used to manufacture Fresnel lenses of the present invention, producing larger Fei Nie
, would not be because as long as the radius or half of diagonal line length of Fresnel lenses are not more than the range of work of circular cone pressure roller during your eyeglass
The size variation of Fresnel lenses and cause cost to dramatically increase, so that production efficiency would not be also greatly reduced.
It is easy to process according to the simple in construction of the device for being used to manufacture Fresnel lenses of the present invention, using safe and efficient,
Popularization and application convenient to carry out.
Brief description of the drawings
Fig. 1 is the structural representation for being used to manufacture one embodiment of the device of Fresnel lenses of the present invention;
Fig. 2 shows the circular cone pressure roller for being used to manufacture the device of Fresnel lenses of the present invention;
Fig. 3 is the structural representation for being used to manufacture second embodiment of the device of Fresnel lenses of the present invention;
Fig. 4 is the structural representation for being used to manufacture the 3rd embodiment of the device of Fresnel lenses of the present invention.
Embodiment
Fresnel lenses include Fresnel Lenses and Fresnel reflective mirror, and Fresnel Lenses is transmission-type, and Fresnel is anti-
Light microscopic is reflection-type, wherein, a surface of Fresnel lenses has multiple radiuses concentric circles or concentric circles incremented by successively
Arc structure, and transparent toroidal lens is in relative another surface or is provided with the curved surface of reflectance coating.In addition, Fresnel Lenses
There is circular, semicircle and polygon with the shape of Fresnel reflective mirror.
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 shows one embodiment for being used to manufacture the device of Fresnel lenses of the present invention.The device 10 includes
Pedestal 6 for bearing substrate 2.Substrate 2 belongs to the semi-finished product of Fresnel lenses.Substrate 2 is made up of lens materials.The eyeglass material
Material can be made up of solid transparent material under normal temperature;The lens materials are preferably polyolefine material or glass.
In addition, the device 10 also includes the circular cone pressure roller 3 for being located at the top of pedestal 6.The circular cone pressure roller 3 is preferably by rigid gold
Category material is made.Circular cone pressure roller 3 is by the rotation around own axes and in the horizontal plane relative to pedestal 6 around its sophisticated A's
Revolution, multiple radiuses concentric circles incremented by successively or isocentric circular arc structure can be rolled out on a substrate 2.However, it is readily understood that
Described revolution be circular cone pressure roller 3 for pedestal 6, i.e., pedestal 6 rotate cause the opposite base 6 of circular cone pressure roller 3 revolve round the sun;
Or circular cone pressure roller 3 rotates so that the opposite base 6 of circular cone pressure roller 3 revolves round the sun.
In the rolling process of circular cone pressure roller 3, due to circular cone pressure roller 3 rely primarily on it is vertical (i.e. perpendicular to the side of substrate 2
To) pressure roll out multiple radiuses concentric circles incremented by successively or isocentric circular arc structure on a substrate 2, therefore it will not be produced
Larger tangential force promotes substrate 2 to be shifted over or offset, and so can be effectively prevented from reducing the qualification rate of Fresnel lenses.
Compared to the rotary pushing method used on conventional art, the device 10 for being used to manufacture Fresnel lenses of the invention is by rotation
Circular cone pressure roller 3 carry out the mode of rolled base sheet 2, the multiple radiuses of Fresnel lenses that can be effectively prevented from producing are passed successively
There is burr in the concentric circles or isocentric circular arc structure of increasing, consequently facilitating producing surface more smooth Fresnel lenses.
In this embodiment, pedestal 6 includes the surface 6a for being used for bearing substrate 2 and is capable of the dynamic of driving surface 6a rotations
Force mechanisms (not shown), it is preferably servomotor.Thus, it is possible to adjust Fresnel lenses by adjusting surface 6a rotating speed
Speed of production.
It is used for the device 10 for manufacturing Fresnel lenses in the present invention, may also include spraying component 4 and/or solidification component 5.Spray
Applying component 4 may include the pipe in the hole with multiple distributions spaced apart.The lens materials of liquid in the pipe, can be by this
Hole is sprayed towards pedestal 6, so as to form the Worker's Stadium to be added of the semi-solid preparation of the substrate 2 or carried of semi-solid preparation on a substrate 2.Wherein,
The Worker's Stadium to be added is used to process multiple radiuses concentric circles incremented by successively or isocentric circular arc structure.By way of this spraying,
The substrate 2 or the Worker's Stadium to be added of semi-solid preparation can be effectively formed, therefore circular cone pressure roller 3 can be facilitated to roll out corresponding concentric circles
Or isocentric circular arc structure.While it is readily appreciated that the substrate 2 or the Worker's Stadium to be added of semi-solid preparation are actually all by the eyeglass of semi-solid preparation
Material is formed, therefore the solidification process for solidifying the lens materials that component 5 accelerates semi-solid preparation can be used after rolling over.Thus,
Be conducive to improving the production efficiency of Fresnel lenses.Wherein, solidification component 5 is, for example, the heating wire for the top for being arranged on pedestal 6.
In this embodiment, spraying component 4 and solidification component 5 do synchronous revolution with circular cone pressure roller 3, and make circular cone pressure roller
3 are between spraying component 4 and solidification component 5 all the time in the circumferential.Device 10 can so be made according to spraying, rolling and solidified
Order manufacture Fresnel lenses so that its automaticity is significantly improved, so that beneficial to production efficiency is improved, saving is produced into
This.
As shown in Fig. 2 circular cone pressure roller 3 includes cone 301, a series of axially spaced is opened in the outer of cone 301
Ring roll piece 302 on week.However, it is readily understood that cone 301 and ring roll piece 302 may be configured to integral structure,
Or ring roll piece 302 is fixed on cone 301.Wherein, the characteristic that can be rotated using cone around its tip, is contributed to
Circular cone pressure roller 3 realizes revolution motion, therefore circular cone pressure roller 3 can be facilitated to be rolled out on a substrate 2 respectively using ring roll piece 302
Individual corresponding concentric circles or isocentric circular arc structure.It is readily appreciated that, the radial section of each ring roll piece 302 is and Fresnel mirror
The shape of the radial section of the single tooth of piece groove is mutually complementary.Thus, qualified Fresnel lenses can just be produced.
Second embodiment shown in Fig. 3 is the improvement based on one embodiment shown in Fig. 1, its specific improvements
It is as follows.Pedestal 6 includes multiple surface 6a being spaced apart from each other, and for multiple surface 6a batch (-type)s for carrying substrate 2
Ground is sent to the drive mechanism in the machining position that can be rolled into by circular cone pressure roller 3.In this way, it is possible to achieve the device 10
Similar to the production of pipeline system, production efficiency is further improved, so as to save production cost.The machining position is understood as
Region is rolled into by circular cone pressure roller 3, and drive mechanism is preferably conveyer.
Fig. 4 shows the 3rd embodiment for being used to manufacture the device of Fresnel lenses of the present invention.3rd embodiment
It is the improvement done for the pedestal 6 of the device 10 of one embodiment.Pedestal 6 includes can be around own axes edge and circular cone pressure roller 3
The smooth roll 60 that the opposite direction of rotation rotates.Smooth roll 60 can do synchronous revolution motion with circular cone pressure roller 3.Wherein, substrate 2 is pressed from both sides
Hold between smooth roll 60 and circular cone pressure roller 3.After smooth roll 60 follows the synchronous public affairs of circular cone pressure roller 3 to circle, circular cone pressure roller 3 can be
Multiple radiuses concentric structure incremented by successively is rolled out on substrate 2, so as to form Fresnel lenses.This double-roll type is set
Put, the integrated model of the device 10 can be promoted compact, reduction produces the cost of the device 10.Smooth roll 60 is preferably cone
Plain roller, thus can also be easy to smooth roll 60 to do revolution motion.
In addition, present invention also offers a kind of method for manufacturing Fresnel lenses, it includes:Substrate arranged in upper
Between the pedestal 6 and circular cone pressure roller 3 of stating the device 10 of the present invention;By circular cone pressure roller 3 around the rotation of own axes and relative to
Pedestal 6 can roll out multiple radiuses concentric circles incremented by successively on a substrate 2 or concentric around the sophisticated A of circular cone pressure roller 3 revolution
Arc structure, so as to form Fresnel lenses.By this method, circular cone pressure roller 3 can be in rolling process by vertical
Pressure rolls out multiple radiuses concentric circles incremented by successively or isocentric circular arc structure on a substrate 2, thus its will not produce it is larger
Tangential force promotes substrate 2 to be shifted over or offset, and can so be effectively prevented from the qualification rate of reduction manufacture Fresnel lenses.
According to the present invention, substrate 2 can select following 3 kinds of arrangements.First, the lens materials of liquid are sprayed at base
On seat 6, so as to form the substrate 2 of semi-solid preparation.Second, the substrate 2 of solid-state is arranged between pedestal 6 and circular cone pressure roller 3, then
The lens materials of liquid are sprayed on substrate 2, the Worker's Stadium to be added of semi-solid preparation is formed.Third, the substrate 2 of solid-state is arranged in base
Between seat 6 and circular cone pressure roller 6.If selecting first two arrangement, then (the i.e. substrate 2 of semi-solid preparation of part to be processed
Or the Worker's Stadium to be added) all it is to be made up of the lens materials of semi-solid preparation, rolled out therefore, it is possible to facilitate circular cone pressure roller 3 to roll on its body
Each corresponding concentric circles or isocentric circular arc structure.If a kind of last arrangement of selection, then be accomplished by using plus
Circular cone pressure roller 3 after heat rolls out multiple radiuses concentric circles incremented by successively or isocentric circular arc structure on the substrate 2 of solid-state.Its
In, the temperature after the heating of circular cone pressure roller 3 is at least above the softening point temperature of substrate 2, and the softening point temperature of circular cone pressure roller 3 is higher than
The softening point temperature of substrate 2.In such manner, it is possible to which it is incremented by successively to ensure that circular cone pressure roller 3 can roll out multiple radiuses on a substrate 2
Concentric circles or isocentric circular arc structure.
It is additionally may included according to the method for manufacturing Fresnel lenses of the present invention after rolling over by solidifying component 5
The substrate 2 or the Worker's Stadium to be added of semi-solid preparation after solidification is rolled by circular cone pressure roller 3, so as to form Fresnel lenses.In this way,
Solidification process can effectively be accelerated, so as to improve the production efficiency of Fresnel lenses.
According to the device and method for being used to manufacture Fresnel lenses of the present invention, rolled out by circular cone pressure roller 3 multiple
The Fresnel lenses of radius concentric circles incremented by successively or isocentric circular arc structure, rely primarily on vertical pressure in this manufacturing process
Power manufactures Fresnel lenses, and therefore, it will not produce larger tangential force to promote substrate 2 to be shifted over or offset, and thus may be used
To be effectively prevented from the qualification rate of reduction manufacture Fresnel lenses.According to the present invention be used for manufacture Fresnel lenses device and
Method, as long as when producing larger Fresnel lenses, the radius or half of diagonal line length of Fresnel lenses are not more than conical pressure
The range of work of roller, will not cause cost to dramatically increase because of the size variation of Fresnel lenses, so that also would not be significantly
Ground reduces production efficiency.
Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the present invention
Under, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as in the absence of structure punching
Prominent, the every technical characteristic being previously mentioned in each embodiment can combine in any way.The invention is not limited in text
Disclosed in specific embodiment, but all technical schemes including falling within the scope of the appended claims.