CN201369024Y - Light guiding assembly - Google Patents
Light guiding assembly Download PDFInfo
- Publication number
- CN201369024Y CN201369024Y CNU2008201302121U CN200820130212U CN201369024Y CN 201369024 Y CN201369024 Y CN 201369024Y CN U2008201302121 U CNU2008201302121 U CN U2008201302121U CN 200820130212 U CN200820130212 U CN 200820130212U CN 201369024 Y CN201369024 Y CN 201369024Y
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- China
- Prior art keywords
- light
- leaded
- leaded light
- light beam
- component
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Abstract
The utility model relates to a light guiding assembly which is applied to an optical mouse. The light guiding assembly comprises a light guiding pole and a body, wherein the light guiding pole comprises a first lens, a light emitting surface, two surface processing layers, at least one light reflecting surface, and the body comprises a concave part and a second lens. The first lens is used for focusing the light beams provided by a light source; the light emitting surface is arranged corresponding to the first lens; the two surface processing layers are arranged on two sides of the light reflecting surface and are used for filtering scattered light at the edges of the light beams; the light reflecting surface is used for reflecting the light beams to the light emitting surface so that the light beams are emitted to the surface on which the optical mouse is arranged through the light emitting surface; the body is arranged on one side of the light guiding pole; and the second lens is arranged corresponding to the concave part and is used for focusing the light beams reflected by the surface to an image sensor which is arranged in the concave part.
Description
Technical field
The relevant a kind of leaded light component of the utility model, particularly a kind of leaded light component that is applied to optical mouse.
Background technology
The basic important document of optical module in the optical mouse is to have light source, optics light guide structure and sensor.Via the light beam that light source sends, in regular turn by the optics light guide structure, last lead beam is to focus on the sensor.Focused beam quality on the sensor is the basis for estimation of anchor point identification.By optical path as can be known, optical texture directly influences the direct of travel behavior of light beam, how to make light beam not disperse, and reduces the interference of spuious light beam, so that the light beam of high brightness focuses on the sensor, reaches highly sensitive optical mouse.From the above, the crucial pushing hands that influences the receipts of beam path light quality is played the part of in the design of optics light guide structure.
The known synoptic diagram that Figure 1 shows that the sensing module of optical mouse, as shown in the figure, sensing module 10 is arranged on the lower house 50 of optical mouse.This sensing module 10 mainly is made up of light emitting diode 20, CMOS image sensing component 40 and leaded light component 30.Light emitting diode 20 is suitable for providing a light beam 22, and this light beam 22 is in regular turn via on the specific region that can be incident upon the desktop 60 that optical mouse places after the reflecting surface 32 of leaded light component 30 and reflecting surface 34 reflections.Then, light beam 22 can be reflexed on the lens section 36 of leaded light component 30 by desktop 60, and this lens section 36 can focus to light beam 22 on the CMOS image sensing component 40, with allow CMOS image sensing component 40 in addition identification handle.
In the above-mentioned sensing module 10, the light beam 22 that is provided because of light emitting diode 20 needs just can be projected on the desktop 60 via the reflection of reflecting surface 32,34, again, reflecting surface 32,34 can't pool desirable directional light with the light beam 22 that light emitting diode 20 is provided, cause light beam 22 to be easier to disperse in the process of transmitting, light beam 22 energy that cause being incident upon on the CMOS image sensing component 40 are lower.In other words, known sensing module 10 is because of beam divergence falls, and focusing quality is not good, can't have high brightness and high contrast, so optical sensitivity is also therefore impaired.
The utility model content
In order to address the above problem, one of the utility model purpose is to provide a kind of leaded light component, filter the light beam that penetrates by leaded light component by surface-treated layer, the edge scatter light that can filter light beam dwindles the light beam focusing surface, with the light and shade contrast of raising with surrounding environment, can strengthen the identification of sensor by this, improve the anchor point sensitivity of optical mouse.
In order to achieve the above object, a kind of leaded light component of the utility model one embodiment is applied to an optical mouse, comprises: the leaded light cylinder comprises: first lens section, in order to converge the light beam that light source provides; Light-emitting face, the corresponding first lens section setting; Two surface-treated layers are arranged at the both sides of light-emitting face, in order to the edge scatter light of filtering light beam; And at least one refractive optical surface, to light-emitting face, light beam is penetrated to the surface of placing optical mouse in order to deflecting light beams by light-emitting face; Reach main body, be arranged at a side of leaded light cylinder, comprise: depressed part; And second lens section, corresponding depressed part setting will be in order to will focus to the image sensor in the depressed part through the light beam of surface reflection.
A kind of leaded light component of the present utility model filters out the light beam that is penetrated by leaded light component by the surface-treated layer structure, the edge scatter light that can filter light beam dwindles the light beam focusing surface, with the light and shade contrast of raising with surrounding environment, can strengthen the identification of sensor by this, improve the anchor point sensitivity of optical mouse.
Description of drawings
Figure 1 shows that known a kind of leaded light component structural representation.
Fig. 2 A is depicted as the utility model one embodiment leaded light component structural representation.
Fig. 2 B is depicted as another angle synoptic diagram of surface-treated layer of the utility model one embodiment leaded light component structure.
The primary clustering symbol description
10 sensing modules
20 light emitting diodes
22 light beams
30 leaded light components
32,34 reflectings surface
36 lens sections
40 CMOS image sensing components
50 lower houses
60 desktops
100 leaded light cylinders
110 first lens sections
120 first end faces
130 light-emitting faces
140 first bottom surfaces
150 refractive optical surfaces
160 surfaces
170 surface-treated layers
200 main bodys
210 depressed parts
220 second end faces
230 second lens sections
240 second bottom surfaces
Embodiment
Fig. 2 A is depicted as the structural representation of an embodiment leaded light component of the present utility model; Fig. 2 B is depicted as interior another angle structural representation of surface-treated layer of leaded light component of the utility model one embodiment.Please refer to Fig. 2 A and Fig. 2 B, as shown in the figure, this leaded light component is applied to an optical mouse, in order to a light source (not shown) is directed on the surface 160 that optical mouse places and reflect focalization to image sensor (not shown), wherein leaded light component comprises a main body 200 and a leaded light cylinder 100.
Continue above-mentionedly, the utility model leaded light component is characterised in that: the leaded light cylinder 100 that is arranged at main body 200 1 sides comprises: one first lens section, 110, one light-emitting faces, 130, two surface-treated layers 170, and at least one refractive optical surface 150.In an embodiment, shown in Fig. 2 A, leaded light cylinder 100 is obliquely installed the side in main body 200.First lens section 110 is arranged at one first end face 120 of leaded light cylinder 100.Light-emitting face 130 is arranged at one first bottom surface 140 of leaded light cylinder 100.Surface-treated layer 170 is arranged at the both sides of light-emitting face 130.Refractive optical surface 150, in order to the light beam (not shown) after light source being provided and converging via first lens section 110, the refraction back is penetrated by light-emitting face 130, and wherein light beam only can be penetrated to surface 160, for example a desktop by the light-emitting face 130 of 170 of surface-treated layers; In other words, when light beam is got to surface-treated layer 170 structures, because of the effect of surface-treated layer 170 structures makes that the spuious light beam at edge is filtered, the light-emitting face 130 that final beam is limited in 170 of surface-treated layers penetrates, so can reduce the edge scatter light of outgoing beam disturbs, the light beam focusing surface is dwindled, improve light and shade contrast with surrounding environment.In another embodiment, the quantity of refractive optical surface 150 is four.
The above-mentioned explanation that continues please continue to consult Fig. 2 A and Fig. 2 B, and main body 200 comprises a depressed part 210 and one second lens section 230.Depressed part 210 is arranged at one second end face 220 of main body 200 and one second bottom surface 240 that second lens section, 230 corresponding depressed parts 210 are arranged at main body 200.Wherein second lens section 230 will be in order to focusing to image sensor (not shown) in the depressed part 210 via surperficial 160 beam reflected.Surface-treated layer 170 of the present utility model can't pass through light beam, that is reaches the interference that filters edge scatter light, and the contrast that strengthens light beam improves the identification of image sensor to focus on image sensor, reaches highly sensitive optical mouse.
In an embodiment, the surface-treated layer 170 on the leaded light cylinder 100 is symmetricly set in light-emitting face 130 both sides, derives in the symmetry of the light beam of 130 of light-emitting faces with reinforcement.In another embodiment, surface-treated layer 170 is one nontransparent, and wherein nontransparent face can be a spraying face also or one coloured.Moreover the real work of spraying face can be handled by atomizings such as texture, sandblast, rag, electrodischarge machining and make.In an embodiment again, the surface of light-emitting face 130 has an arc angle.
Above-described embodiment only is explanation technological thought of the present utility model and characteristics, its purpose is to make the personage who has the knack of this skill can understand content of the present utility model and implements according to this, when can not be promptly with qualification claim of the present utility model, generally the equalization of doing according to the spirit that the utility model disclosed changes or modifies, and must be encompassed in the claim of the present utility model.
Claims (8)
1, a kind of leaded light component is applied to an optical mouse, it is characterized in that, comprises:
One leaded light cylinder comprises:
One first lens section is in order to converge the light beam that a light source is provided;
One light-emitting face is to should the first lens section setting;
Two surface-treated layers are arranged at the both sides of this light-emitting face, in order to an edge scattered light of this light beam of filtering; And
At least one refractive optical surface in order to reflect this light beam to this light-emitting face, makes this light beam be penetrated to a surface of placing this optical mouse by this light-emitting face; And
One main body is arranged at a side of this leaded light cylinder, comprises:
One depressed part; And
One second lens section is to should the depressed part setting, in order to will focus to the image sensor in this depressed part through this light beam of this surface reflection.
2, leaded light component as claimed in claim 1 is characterized in that: this leaded light cylinder is obliquely installed the side in this main body.
3, leaded light component as claimed in claim 1 is characterized in that: this surface-treated layer is one nontransparent.
4, leaded light component as claimed in claim 3 is characterized in that: this nontransparent is a spraying face.
5, leaded light component as claimed in claim 3 is characterized in that: this nontransparent is one coloured.
6, leaded light component as claimed in claim 1 is characterized in that: this surface-treated layer is symmetricly set in this light-emitting face both sides.
7, leaded light component as claimed in claim 1 is characterized in that: the quantity of this refractive optical surface is four.
8, leaded light component as claimed in claim 1 is characterized in that: the surface of this light-emitting face has an arc angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201302121U CN201369024Y (en) | 2008-12-08 | 2008-12-08 | Light guiding assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201302121U CN201369024Y (en) | 2008-12-08 | 2008-12-08 | Light guiding assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369024Y true CN201369024Y (en) | 2009-12-23 |
Family
ID=41487916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201302121U Expired - Lifetime CN201369024Y (en) | 2008-12-08 | 2008-12-08 | Light guiding assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369024Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111866300A (en) * | 2019-04-26 | 2020-10-30 | 三菱电机株式会社 | Image reading apparatus |
-
2008
- 2008-12-08 CN CNU2008201302121U patent/CN201369024Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111866300A (en) * | 2019-04-26 | 2020-10-30 | 三菱电机株式会社 | Image reading apparatus |
| CN111866300B (en) * | 2019-04-26 | 2023-04-07 | 三菱电机株式会社 | Image reading apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091223 |
|
| CX01 | Expiry of patent term |