CN204903927U - Optics anti -dazzling screen - Google Patents
Optics anti -dazzling screen Download PDFInfo
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- CN204903927U CN204903927U CN201520689089.7U CN201520689089U CN204903927U CN 204903927 U CN204903927 U CN 204903927U CN 201520689089 U CN201520689089 U CN 201520689089U CN 204903927 U CN204903927 U CN 204903927U
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- dazzling screen
- optics anti
- optics
- line
- medial surface
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Abstract
The utility model relates to a camera lens shading field, install inside a camera lens, optics anti -dazzling screen's the spatial structure of appearance for having certain thickness, optics anti -dazzling screen has a lateral surface and a medial surface, and optics anti -dazzling screen still has a perforation that is used for light to see through, the aperture diameter of the outer ring that the lateral surface of anti -dazzling screen produced because of boring a hole is greater than the medial surface and produces the aperture diameter of an interior ring because of boring a hole, and outer ring is connected with interior ring on the fenestrate inclined plane that forms all around, the inclined plane extends towards the lateral surface from the edge of medial surface to form, and inclined plane and the crossing branch -cut bridge that formed of anti -dazzling screen elevation. When the in -service use, arrange the anti -dazzling screen of making in camera lens inside relevant position, can reduce because of leading to phenomenons such as parasitics light, ghost image in the refracted light entering camera lens through set up full chamfer structure in the anti -dazzling screen, higher practical value has.
Description
Technical field
The utility model relates to camera lens shading field, particularly a kind of optics anti-dazzling screen for camera lens.
Background technology
Anti-dazzling screen in the mobile lens of prior art there is no chamfering structure design, though and the anti-dazzling screen of prior art after improvement have chamfering structure, but have vertical plane bottom inclined-plane, as shown in Figures 1 to 5, be " half chamfering structure " that industry often claims.The anti-dazzling screen of prior art is when light is shining into vertical plane, the perpendicular line at incident ray and incidence point place forms a reflected ray, because vertical plane is vertical with anti-dazzling screen, the reflected ray that incident ray produces can enter in camera lens, thus causing the shooting results of veiling glare, dazzle and ghost, prior art cannot effectively eliminate the veiling glare entering mobile lens.Therefore, need be improved prior art.
Utility model content
The purpose of this utility model is to provide a kind of optics anti-dazzling screen, can effectively eliminate the veiling glare entering mobile lens.
Optics anti-dazzling screen of the present utility model, be installed in a camera lens inner, the profile of optics anti-dazzling screen is for having certain thickness spatial structure, optics anti-dazzling screen has a lateral surface and a medial surface, and optics anti-dazzling screen also has the perforation for light therethrough, the aperture diameter of the outer toroid that the lateral surface of optics anti-dazzling screen produces because of perforation is greater than the aperture diameter of medial surface because of annulus in perforation generation one, and outer toroid is connected with interior annulus and forms an inclined-plane in the surrounding of boring a hole, inclined-plane is that side extension forms toward the outside from the edge of medial surface, and inclined-plane is crossing with anti-dazzling screen plumb cut forms transition line.
Further, above-mentioned optics anti-dazzling screen of the present utility model, wherein transition line is a straight-line segment or a circular arc line segment, the reflecting surface of formation neatly, not in disorder.
Further, above-mentioned optics anti-dazzling screen of the present utility model, wherein straight-line segment with perpendicular to anti-dazzling screen and the angle that the perpendicular line crossing with straight-line segment lower extreme point is formed is full chamfering, decrease and make incident ray enter reflecting surface in camera lens.
Further, above-mentioned optics anti-dazzling screen of the present utility model, wherein the angle of full chamfering is 25 ° – 75 °, reduces the possibility that refract light enters camera lens.
Further, above-mentioned optics anti-dazzling screen of the present utility model, wherein the angle of full chamfering is 30 ° – 60 °, further reduces the possibility that refract light enters camera lens.
Further, above-mentioned optics anti-dazzling screen of the present utility model, wherein the lower extreme point of the transition line of anti-dazzling screen is ± 0.002 millimeter (mm) to the vertical range of the medial surface of anti-dazzling screen, reduces the reflective surface area producing refract light.
Further, above-mentioned optics anti-dazzling screen of the present utility model, wherein the tangent line of circular arc line segment is 25 ° of – 75 ° with the angle number of degrees formed perpendicular to the perpendicular line of anti-dazzling screen.
Further, above-mentioned optics anti-dazzling screen of the present utility model, wherein the tangent line of circular arc line segment is 30 ° of – 60 ° with the angle number of degrees formed perpendicular to the perpendicular line of anti-dazzling screen
The utility model is owing to using above technical scheme, and the beneficial effect made it have is:
The reflecting surface formed due to anti-dazzling screen perforation is neat, unified, by arranging full chamfering structure in anti-dazzling screen, the reflected light producing because of reflecting surface and enter into camera lens can be decreased, thus decreasing the shooting results of veiling glare, dazzle and ghost, anti-dazzling screen size is extra small, ultra-thin, spacing is ultra-fine, can be widely used in mobile lens, camera lens, the pick-up lenss such as monitoring and on-vehicle lens, are not limited only to mobile lens, have higher practical value in life.
Accompanying drawing explanation
Fig. 1 is the anti-dazzling screen schematic diagram of prior art;
Fig. 2 is the scheme of installation of anti-dazzling screen in camera lens of prior art;
Fig. 3 is the sectional view of the anti-dazzling screen of prior art;
Fig. 4 is the light reflection schematic diagram of the anti-dazzling screen sectional view of prior art;
Fig. 5 is the ray plot of anti-dazzling screen when reality uses of prior art;
Fig. 6 is the schematic diagram of the optics anti-dazzling screen of the utility model first embodiment;
Fig. 7 is the scheme of installation of anti-dazzling screen in camera lens of the utility model optics first embodiment;
Fig. 8 is the front schematic view of the optics anti-dazzling screen of the utility model first embodiment;
Fig. 9 is the optics anti-dazzling screen schematic cross-section of the utility model first embodiment;
Figure 10 is the light reflection schematic diagram of the optics anti-dazzling screen of the utility model first embodiment;
Figure 11 is the ray plot of optics anti-dazzling screen when reality uses of the utility model first embodiment;
Figure 12 is the schematic cross-section of the optics anti-dazzling screen of the utility model second embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, each embodiment of the present utility model is explained in detail.
First embodiment of the present utility model provides a kind of optics anti-dazzling screen, as shown in Figure 6 to 8, be installed in a pick-up lens inner, and the size of optics anti-dazzling screen 1 of the present utility model is extra small, ultra-thin, spacing is ultra-fine, the profile of optics anti-dazzling screen 1 is for having certain thickness spatial structure, optics anti-dazzling screen 1 has relative lateral surface 11 and a medial surface 12, and optics anti-dazzling screen 1 also has the perforation 13 for light therethrough, the lateral surface 11 of optics anti-dazzling screen 1 because of the aperture diameter of an outer toroid 14 of 13 generations of boring a hole be greater than the aperture diameter of medial surface 12 because of annulus 15 in 13 generations one of boring a hole, and outer toroid 14 is connected with interior annulus 15 and forms an inclined-plane 3 in the surrounding of perforation 13, inclined-plane 3 is that side 11 extension forms toward the outside from the edge of medial surface 12, and inclined-plane 3 is crossing with optics anti-dazzling screen 1 plumb cut forms transition line.
As shown in Figures 9 and 11, when light inject be on inclined-plane 3 time, due to inclined-plane 3 be by principle of reflection by reflected light by once or birefringence reflex to pick-up lens outside completely, decrease and cause the phenomenon such as veiling glare, ghost image because refract light enters in camera lens, there is higher practical value in actual life.
Specifically, transition line is a straight-line segment, make the inclined-plane 3 of formation neatly, not in disorder.
Wherein, straight-line segment with perpendicular to anti-dazzling screen 1 and the angle that the perpendicular line crossing with straight-line segment lower extreme point is formed is full chamfering, improve the problem of the straight bevel facet 3 existed in prior art, decrease and make incident ray enter reflecting surface in pick-up lens.
Specifically, the chamfer angle of full chamfering is 25 ° – 75 °, and preferably angle is 30 ° – 60 °, can reduce the possibility that refract light enters camera lens like this.
Wherein, the lower extreme point of the transition line 2 of optics anti-dazzling screen 1 is ± 0.002 millimeter (mm) to the vertical range of the medial surface 12 of optics anti-dazzling screen 1, effectively reduces the reflective surface area producing refract light.
Also it should be noted that, inclined-plane 3 can also arrange light absorbent, reduce the generation of reflected light, as the plastic material of black, suitable material can be selected according to actual needs, not add to repeat at this.
Optics anti-dazzling screen of the present utility model is when reality uses, the optics anti-dazzling screen 1 made is placed in the inner relevant position of camera lens, when on the inclined-plane 3 that light is injected into full chamfering, due to the ramp structure that inclined-plane 3 is full chamferings, so by principle of reflection by reflected light through once or birefringence reflex to camera lens outside completely, decrease refract light to enter in camera lens, and cause the phenomenon such as veiling glare, ghost image, there is higher practical value in actual life.
Second embodiment of the present utility model provides another kind of optics anti-dazzling screen, it is similar to the technical characteristic of embodiment one, the key distinction is: as shown in figure 12, the transition line 2 of optics anti-dazzling screen 1 is a circular arc line segment, the angle number of degrees that tangent line and the perpendicular line perpendicular to optics anti-dazzling screen 1 of circular arc line segment are formed are 25 ° of – 75 °, preferably angle is 30 ° – 60 °, due to extraneous light be irradiated to circular arc line segment formed inclined-plane 3 on time, incident light reflects away according to the perpendicular line of the tangent plane on inclined-plane 3, and the angle that the perpendicular line of the tangent line of circular arc line and anti-dazzling screen is formed is 25 ° of – 75 °, reflected ray can be reached and do not enter camera lens, as for which kind of transition line of selection, need to decide according to different uses.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above realize specific embodiment of the utility model, and in actual applications, various change can be done to it in the form and details, and do not depart from spirit and scope of the present utility model.
Claims (9)
1. an optics anti-dazzling screen, be installed in a pick-up lens inner, the profile of described optics anti-dazzling screen is for having certain thickness spatial structure, described optics anti-dazzling screen has a lateral surface and a medial surface, and described optics anti-dazzling screen also has the perforation for light therethrough, it is characterized in that: the aperture diameter of the outer toroid that the described lateral surface of described anti-dazzling screen produces because of perforation is greater than the aperture diameter of described medial surface because of annulus in perforation generation one, and described outer toroid is connected with interior annulus and forms an inclined-plane in the surrounding of described perforation, described inclined-plane extends towards described lateral surface from the edge of described medial surface to form, and described inclined-plane and described optics anti-dazzling screen plumb cut crossing formation one transition line.
2. optics anti-dazzling screen as claimed in claim 1, is characterized in that: described transition line is a straight-line segment.
3. optics anti-dazzling screen as claimed in claim 2, is characterized in that: described straight-line segment with perpendicular to anti-dazzling screen and the angle that the perpendicular line crossing with described straight-line segment lower extreme point is formed is full chamfering.
4. optics anti-dazzling screen as claimed in claim 3, is characterized in that: the angle of described full chamfering is 25 ° – 75 °.
5. the optics anti-dazzling screen as shown in claim 4, is characterized in that: the angle of described full chamfering is 30 ° – 60 °.
6. the optics anti-dazzling screen as shown in claim 1, is characterized in that: the lower extreme point of the described transition line of described anti-dazzling screen is ± 0.002 millimeter to the vertical range of the described medial surface of described optics anti-dazzling screen.
7. optics anti-dazzling screen as claimed in claim 1, is characterized in that: described transition line is a circular arc line segment.
8. the optics anti-dazzling screen as shown in claim 7, is characterized in that: the angle number of degrees that tangent line and the perpendicular line perpendicular to described optics anti-dazzling screen of described circular arc line segment are formed are 25 ° of – 75 °.
9. the optics anti-dazzling screen as shown in claim 8, is characterized in that: the angle number of degrees that tangent line and the perpendicular line perpendicular to described optics anti-dazzling screen of described circular arc line segment are formed are 30 ° of – 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689089.7U CN204903927U (en) | 2015-09-08 | 2015-09-08 | Optics anti -dazzling screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520689089.7U CN204903927U (en) | 2015-09-08 | 2015-09-08 | Optics anti -dazzling screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204903927U true CN204903927U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520689089.7U Active CN204903927U (en) | 2015-09-08 | 2015-09-08 | Optics anti -dazzling screen |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106210473A (en) * | 2016-08-10 | 2016-12-07 | 青岛海信移动通信技术股份有限公司 | Terminal unit |
| CN107132715A (en) * | 2017-03-27 | 2017-09-05 | 浙江舜宇光学有限公司 | Anti-dazzling screen and camera lens |
| CN113219762A (en) * | 2020-01-17 | 2021-08-06 | 三营超精密光电(晋城)有限公司 | Shading sheet, lens module and electronic device |
-
2015
- 2015-09-08 CN CN201520689089.7U patent/CN204903927U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106210473A (en) * | 2016-08-10 | 2016-12-07 | 青岛海信移动通信技术股份有限公司 | Terminal unit |
| CN107132715A (en) * | 2017-03-27 | 2017-09-05 | 浙江舜宇光学有限公司 | Anti-dazzling screen and camera lens |
| CN113219762A (en) * | 2020-01-17 | 2021-08-06 | 三营超精密光电(晋城)有限公司 | Shading sheet, lens module and electronic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200731 Address after: 201514 1st and 2nd floor, No.16, Lane 500, zhenkang Road, Zhangyan Town, Jinshan District, Shanghai Patentee after: Shanghai wenlai optoelectronic Co., Ltd Address before: South of the middle of the second floor of the first building, 183 Jiugan Road, Sijing Town, Songjiang District, Shanghai Patentee before: SHANGHAI CHENGJING PHOTOELECTRIC Co.,Ltd. |