CN111198468A - Lens and manufacturing method thereof - Google Patents
Lens and manufacturing method thereof Download PDFInfo
- Publication number
- CN111198468A CN111198468A CN201911080770.0A CN201911080770A CN111198468A CN 111198468 A CN111198468 A CN 111198468A CN 201911080770 A CN201911080770 A CN 201911080770A CN 111198468 A CN111198468 A CN 111198468A
- Authority
- CN
- China
- Prior art keywords
- lens
- light
- lens barrel
- ultraviolet
- layer
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000003292 glue Substances 0.000 claims abstract description 59
- 239000010410 layer Substances 0.000 claims abstract description 59
- 239000012790 adhesive layer Substances 0.000 claims abstract description 22
- 238000002834 transmittance Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 11
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000031700 light absorption Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
A lens comprises a lens barrel, a lens and an ultraviolet glue layer. The lens is arranged in the lens barrel. The ultraviolet glue layer is arranged on the mirror surface in the lens or the outer diameter side wall of the lens, and the ultraviolet glue layer surrounds the lens. The light transmittance of visible light of the ultraviolet light adhesive layer is less than or equal to 20 percent.
Description
Technical Field
The present disclosure relates to lenses, and particularly to a lens with an ultraviolet adhesive layer and a method for manufacturing the lens.
Background
In the conventional imaging device, a part of the unintended light passes through the optically effective area (CA) of the lens, which may cause stray light and affect the imaging quality. In order to reduce the formation of stray light, it is known to coat a light-shielding ink on the surface and periphery of the lens bearing surface facing the lens barrel to absorb the stray light. Moreover, the lens can be fixed on the bearing surface of the lens barrel by various materials such as thermosetting adhesive, transparent ultraviolet adhesive and the like. However, the light-shielding ink absorbs the ultraviolet light, and when the transparent ultraviolet glue is disposed between the light-shielding ink layer and the bearing surface, the ultraviolet glue between the lens and the lens barrel cannot effectively react with the UV light to be hardened. Uv glue that does not harden effectively can flow or contaminate the optically active area of the lens, which is unacceptable for high cleanliness optical products.
Disclosure of Invention
The embodiment of the invention provides a lens and a manufacturing method thereof, which can improve the conventional problems. .
The lens barrel according to an embodiment of the invention includes a lens barrel, a lens and an Ultraviolet (UV) glue layer. The lens is arranged in the lens barrel. The ultraviolet glue layer is arranged on the mirror surface in the lens or the outer diameter side wall of the lens, and the ultraviolet glue layer surrounds the lens. The light transmittance of visible light of the ultraviolet light adhesive layer is lower than or equal to 20 percent, so that the light curing characteristic is not influenced, and the technical effect of absorbing stray light can be realized.
According to another embodiment of the present invention, a lens barrel includes a lens barrel, a lens and an ultraviolet adhesive layer. The lens is arranged in the lens barrel. The ultraviolet glue layer is arranged on the mirror surface in the lens or the outer diameter side wall of the lens, and the ultraviolet glue layer is arranged in a ring shape. The color of the ultraviolet glue layer is black, so that the technical effect of absorbing stray light can be realized.
According to another embodiment of the invention, a method for manufacturing a lens barrel is provided. The manufacturing method includes the following steps. Coating a ring-shaped shading ink on the surface of the lens; coating an annular ultraviolet glue layer on the surface of the lens; mounting a lens in a lens barrel; and irradiating the ultraviolet adhesive layer with light to cure the ultraviolet adhesive layer. The annular shading ink and the annular ultraviolet light adhesive layer can achieve the technical effects of water prevention and stray light absorption.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1A is a partial schematic view illustrating an image capturing apparatus according to an embodiment of the invention.
Fig. 1B is a schematic diagram of the lens barrel of fig. 1A.
Fig. 2 is a schematic view illustrating a lens barrel according to another embodiment of the invention.
Fig. 3 is a schematic view illustrating a lens barrel according to still another embodiment of the invention.
Detailed Description
The problem that the transparent ultraviolet glue can not be effectively hardened because the light-shielding ink in the prior art absorbs the UV light is solved. In an embodiment of the present invention, a dark color uv-curable adhesive having both a light-shielding function and a fixing function is provided to replace the conventional light-shielding ink and transparent uv-curable adhesive. For example, embodiments provide a lens, wherein the UV glue layer coated on the lens has a low light transmittance of visible light and can be hardened by UV light. Therefore, the light-curing characteristic is not influenced, and the effect of absorbing stray light can be realized. The following is further illustrated by the specific examples.
Referring to fig. 1A and 1B, fig. 1A is a partial schematic view of an image capturing device 1' according to an embodiment of the invention, and fig. 1B is a schematic view of the lens 1 of fig. 1A.
As shown in fig. 1A, the imaging device 1' at least includes a lens 1 and an image sensor 1A. The image sensor 1a is, for example, a charge coupled device (CDD) or a Complementary Metal Oxide Semiconductor (CMOS). Light from an object O1 on the object side passes through the lens 1 and enters the image sensor 1 a. The image sensor 1a can sense light to generate an image digital signal of the object O1.
Referring to fig. 3, a schematic diagram of a lens barrel 3 according to a first embodiment of the invention is shown. The lens 3 includes a lens barrel 31, a lens 32 and an ultraviolet glue layer 33.
The ultraviolet adhesive layer (also called UV adhesive layer) 33 is formed by curing an ultraviolet glue or an ultraviolet curing type masking black glue. In this case, the UV glue layer is a UV curable material, which may include a substrate, a mixture of photosensitive material (photoreactive material) and a colorant. The base material is formed by combining acrylic resin or epoxy resin; the pigment can be dark and light-absorbing material such as graphite. Therefore, the ultraviolet glue layer is dark before and after hardening and can block most visible light, so as to provide the effect of reducing stray light. The light transmittance of the uv-curable adhesive 33 to visible light may be lower than 1%, lower than 5%, lower than 10%, or lower than 20%. The light transmittance of visible light is understood as the passing ratio of light with a wavelength of 550 nm. In this example, the UV glue is substantially black and has a light transmittance (OD value) of less than 10%. In terms of thickness, the uv glue layer 33 may have a thickness less than or equal to 300, 200, 100, 50 and 20 microns. In this embodiment, the UV glue layer 33 has a thickness of 200 μm, so that the curing performance is better.
Referring to fig. 3, the uv glue layer 33 is disposed on both the mirror surface 32s and the outer diameter sidewall 32w of the lens 32. The ultraviolet glue layer 33 is annularly disposed on the lens 32 to form an annulus, which can achieve the technical effects of waterproof, fixing each component and absorbing stray light. In addition, the lens 3 does not adopt a light-shielding ink layer, but completely utilizes the ultraviolet glue layer 33 to fix, shield and prevent water for the lens 32. Thus, the pollution problems that the cleaning is difficult after the ink is coated and the powder is easy to peel off after the solidification can be avoided. Therefore, the lens 3 of the embodiment of the invention meets the optical product with high cleanness requirement.
Referring to fig. 1B, fig. 1B is a schematic diagram of a lens barrel 1 according to another embodiment of the invention. As shown in the figure, the lens 1 includes a lens barrel 11, a lens 12, an Ultraviolet (UV) adhesive layer 13 and a light-shielding ink layer 14.
The difference from fig. 3 is that, in addition to the uv glue layer 13, a light-shielding ink layer 14 is also provided. The light-shielding ink layer 14 is, for example, an ink layer, for example, an ink containing graphite or carbon powder, and has a visible light transmittance of less than 20%, less than 10%, or less than 5%. The light-shielding ink layer 14 itself can shield light or absorb light, but has little adhesive effect. In this example, the light-shielding ink layer 14 has a light transmittance of less than about 10% for visible light. The thickness of the black ink layer 14 may be less than or equal to 300, 200, 100, 50, and 20 microns. The thickness of the light-shielding ink layer 14 is generally thicker than that of the ultraviolet glue.
The lens 12 is provided in the lens barrel 11. The uv glue layer 13 is provided on the outer diameter side wall 12w of the lens 12. In this design the uv glue layer 13 surrounds the lens 12 forming a closed ring as an annulus. Because the ultraviolet adhesive layer 13 is an annular ultraviolet adhesive layer, the technical effects of waterproof, fixing and stray light absorption in the whole circumference (360 degrees) can be simultaneously realized. Meanwhile, the light shielding ink layer 14 is coated on the mirror surface 12s of the lens 12. The light-shielding ink layer 14 can absorb stray light. Since the light-shielding ink layer 14 is coated annularly and forms another annular zone, the technical effect of absorbing stray light in a full-circle manner can be achieved. As shown, the light-shielding ink layer 14 is located inside the uv glue layer 13, in other words, the uv glue layer 13 surrounds the light-shielding ink layer 14. The light-shielding ink layer 14 and the ultraviolet light color layer 13 are located in the optically inactive area of the lens in this example, or not located in the optically active area (clear area). In addition, in another embodiment, the positions of the light-shielding ink layer 14 and the ultraviolet adhesive layer 13 in fig. 1B may be inter-modulated. In other words, the light-shielding ink layer 14 may be formed on the outer diameter sidewall 22w of the lens 22, and the uv glue layer 13 may be formed on the mirror surface 22s of the lens 22.
Fig. 2 is a schematic view of a lens barrel 2 according to still another embodiment of the invention. The lens 2 includes a lens barrel 21, a lens 22, an ultraviolet glue layer 23, and a light shielding ink 24.
The difference from the embodiment of fig. 1B is that the uv glue layer 23 is provided on both the outer diameter sidewall 22w of the lens 22 and the partial mirror surface 22 s. In detail, the uv glue layer 23 is partially disposed on the mirror surface 22s, and the other portion is disposed on the outer diameter sidewall 22w of the lens 22. The ultraviolet glue layer 23 is annularly arranged on the lens 22, so that the technical effects of waterproof, fixing and stray light absorption in the whole circumference mode can be realized.
As shown in fig. 2, the light shielding ink 24 is coated on the mirror surface 22s of the lens 22 simultaneously with the ultraviolet glue layer 23. The light shielding ink 24 can absorb stray light. Since the light shielding ink 24 is a ring-shaped light shielding ink, a technical effect of absorbing stray light in a full-circle manner can be achieved.
The following describes a method for manufacturing a lens. In one embodiment, the steps generally include step a of coating a surface of an annular light blocking ink lens; step B, coating an annular ultraviolet glue layer on the surface of the lens; step three, mounting the first lens in the lens barrel; and step D, irradiating the ultraviolet adhesive layer with light to enable the ultraviolet adhesive layer to react and harden.
It is to be understood that the order of the steps A, B, C, D and E can be adjusted unless otherwise indicated. For example, step B may be performed first, and then step A may be performed.
More specifically, taking the lens 1 of fig. 1B as an example, step a is performed to coat the light-shielding ink on the mirror surface 12S on the non-effective area of the lens 12 to form a complete ring-shaped light-shielding ink layer 14. And then, performing a step C of arranging the lens at a specific position of the lens barrel, wherein the horizontal position of the lens can be adjusted according to needs, and after positioning, performing a step B of arranging liquid ultraviolet glue (namely the ultraviolet glue layer 13 before light curing) between the outer diameter side wall of the lens 12 and the lens barrel. Finally, the ultraviolet glue is irradiated to solidify the ultraviolet glue into the ultraviolet glue layer 13. Since the ultraviolet glue is not blocked by the light blocking ink, it can be completely cured, and thus there is no residual ultraviolet glue leaking into the lens barrel 11. In addition, since the light transmittance of the visible light of the cured ultraviolet adhesive layer 13 is lower than 20%, the effect of absorbing stray light can be achieved after curing. Incidentally, the step b may be performed before the step c, that is, the lens 12 may be coated with the ultraviolet glue before entering the lens barrel.
As another example, in the manufacturing method of the lens barrel 2, first, the annular light shielding ink 24 may be applied on the surface of the lens 22, such as the mirror surface 22 s. Then, the liquid uv glue is applied to the same surface (e.g., mirror 22s) of the lens 22 in a complete ring shape. Then, the lens 22 is mounted in the lens barrel 21. Then, ultraviolet glue may be applied to the space between the outer diameter side wall 22w and the lens barrel 21. Then, the ultraviolet glue in liquid state is irradiated with ultraviolet light, so that the liquid ultraviolet glue reacts and hardens into the ultraviolet glue layer 23 as shown in fig. 2. Of course, the liquid uv glue may be coated on the mirror surface 22S and the outer diameter sidewall 22W when entering the lens barrel. And the manufacturing method of the lens 3 is similar to that of the lens 2, and only the setting step of the light shielding ink 24 is removed.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A lens barrel characterized by comprising:
a lens barrel;
the first lens is arranged in the lens barrel; and
the ultraviolet light adhesive layer is arranged on the mirror surface in the first lens or the outer diameter side wall of the first lens, the ultraviolet light adhesive layer surrounds the first lens, and the light transmittance of visible light of the ultraviolet light adhesive layer is lower than or equal to 20 percent.
2. A lens barrel characterized by comprising:
a lens barrel;
the first lens is arranged in the lens barrel; and
an ultraviolet ray glue film, locate mirror surface in the first lens or on the external diameter lateral wall of first lens, the ultraviolet ray glue film is established to an annular, the ultraviolet ray glue film is black.
3. A method for manufacturing a lens, comprising the steps of:
coating annular shading ink on the first surface of a first lens;
coating an annular ultraviolet glue layer on the first surface of the first lens;
mounting the first lens in a lens barrel; and
and irradiating light to the annular ultraviolet light adhesive layer to harden the annular ultraviolet light adhesive layer.
4. The lens barrel according to claim 1 or 2, wherein the ultraviolet glue layer is less than or equal to 300 μm thick.
5. The lens barrel as claimed in claim 1 or 2, wherein a light-shielding ink layer is further provided on the mirror surface or the outer diameter side wall of the first lens.
6. The lens barrel as claimed in claim 1 or 2, wherein a first annular zone and a second annular zone are provided on the surface of the first lens, the first annular zone is a light shielding ink, and the second annular zone is the ultraviolet light adhesive layer.
7. The lens barrel as claimed in claim 6, wherein the first annular band is disposed inside the second annular band.
8. The lens barrel as claimed in claim 6, wherein the first zone is provided outside the second zone.
9. The lens barrel as claimed in claim 1 or 2, wherein the uv glue layer is disposed on both the outer diameter sidewall and the mirror surface.
10. The lens barrel according to claim 1 or 2, wherein the ultraviolet light subbing layer has a light transmittance of visible light of less than 5%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107140921 | 2018-11-16 | ||
| TW107140921A TWI756490B (en) | 2018-11-16 | 2018-11-16 | Imaging lens and manufacturing method for the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111198468A true CN111198468A (en) | 2020-05-26 |
Family
ID=70746144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911080770.0A Pending CN111198468A (en) | 2018-11-16 | 2019-11-07 | Lens and manufacturing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111198468A (en) |
| TW (1) | TWI756490B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020154239A1 (en) * | 2001-04-24 | 2002-10-24 | Hisayoshi Fujimoto | Image sensor module and method of making the same |
| US20070285555A1 (en) * | 2006-06-09 | 2007-12-13 | Hon Hai Precision Industry Co., Ltd. | Lens module and camera employing the same |
| CN101153947A (en) * | 2006-09-26 | 2008-04-02 | 鸿富锦精密工业（深圳）有限公司 | Lens module and manufacturing method thereof |
| CN102103244A (en) * | 2009-12-22 | 2011-06-22 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| TW201500768A (en) * | 2013-06-18 | 2015-01-01 | Sintai Optical Shenzhen Co Ltd | Lens assembly and baffle thereof |
| CN107163901A (en) * | 2017-06-21 | 2017-09-15 | 广州日高新材料科技有限公司 | Ultraviolet light solidification black adhesive and preparation method thereof |
| JP2018097344A (en) * | 2016-12-10 | 2018-06-21 | エーエーシー テクノロジーズ ピーティーイー リミテッドＡａｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｐｔｅ．Ｌｔｄ． | Lens module |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202794802U (en) * | 2012-01-18 | 2013-03-13 | 鑫晶钻科技股份有限公司 | Image capture apparatus |
| CN204758901U (en) * | 2015-06-11 | 2015-11-11 | 深圳市斯尔顿科技有限公司 | Lens fixation device |
-
2018
- 2018-11-16 TW TW107140921A patent/TWI756490B/en active
-
2019
- 2019-11-07 CN CN201911080770.0A patent/CN111198468A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020154239A1 (en) * | 2001-04-24 | 2002-10-24 | Hisayoshi Fujimoto | Image sensor module and method of making the same |
| US20070285555A1 (en) * | 2006-06-09 | 2007-12-13 | Hon Hai Precision Industry Co., Ltd. | Lens module and camera employing the same |
| CN101153947A (en) * | 2006-09-26 | 2008-04-02 | 鸿富锦精密工业（深圳）有限公司 | Lens module and manufacturing method thereof |
| CN102103244A (en) * | 2009-12-22 | 2011-06-22 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| TW201500768A (en) * | 2013-06-18 | 2015-01-01 | Sintai Optical Shenzhen Co Ltd | Lens assembly and baffle thereof |
| JP2018097344A (en) * | 2016-12-10 | 2018-06-21 | エーエーシー テクノロジーズ ピーティーイー リミテッドＡａｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｐｔｅ．Ｌｔｄ． | Lens module |
| CN107163901A (en) * | 2017-06-21 | 2017-09-15 | 广州日高新材料科技有限公司 | Ultraviolet light solidification black adhesive and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202020542A (en) | 2020-06-01 |
| TWI756490B (en) | 2022-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6330329B2 (en) | Optical filter | |
| KR101483386B1 (en) | Optical filter, method for producing same, and image capturing device | |
| US6551530B2 (en) | Method of forming a hybrid lens | |
| US7787184B2 (en) | Member having antireflection structure | |
| US20170248739A1 (en) | Optical filter and imaging apparatus | |
| EP3937246A2 (en) | Lens sheet, lens sheet unit, imaging module, imaging device | |
| JPS5742009A (en) | Formation of protective film for color mosaic filter | |
| TW201546500A (en) | Light-emitting element | |
| CN111198468A (en) | Lens and manufacturing method thereof | |
| JP2012252307A (en) | Composite optical element and imaging optical system | |
| JP2013114103A (en) | Optical system and optical equipment | |
| TW201732341A (en) | Image alignment structure | |
| CN209249460U (en) | Complementary metal oxide semiconductor photosensory assembly and protective glass module | |
| JP2008139748A (en) | Composite optical element and manufacturing method and equipment therefor | |
| JP2010278501A (en) | Solid-state imaging apparatus | |
| WO2015020076A1 (en) | Optical member, method for producing same, and image-capturing device | |
| US7324169B2 (en) | Projection optical system, projection television, and method of manufacturing lens included in projection optical system | |
| TWI818830B (en) | Lens with light-shading structure and lens module | |
| CN212933025U (en) | Shading element and optical imaging lens | |
| JPH09279109A (en) | Adhesive for optical part | |
| JP2013114098A (en) | Optical element, optical system and optical equipment | |
| KR100571934B1 (en) | Projection optical system, projection television and lens manufacturing method | |
| CN106324942A (en) | Light-shielding sheet and imaging lens group | |
| JP2014174225A (en) | Fresnel lens and manufacturing method thereof | |
| JP2022170558A (en) | Optical element, optical instrument, imaging apparatus, and method for manufacturing optical element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240202 Address after: Hsinchu Science Industrial Park, Taiwan, China Applicant after: YOUNG OPTICS INC. Country or region after: Taiwan, China Address before: Taiwan County, Hsinchu, China Hukou Feng Village Road, No. 5 Culture Applicant before: Rays Optics Inc. Country or region before: Taiwan, China |
|
| TA01 | Transfer of patent application right |