CN106324942A - Light-shielding sheet and imaging lens group - Google Patents
Light-shielding sheet and imaging lens group Download PDFInfo
- Publication number
- CN106324942A CN106324942A CN201610903042.5A CN201610903042A CN106324942A CN 106324942 A CN106324942 A CN 106324942A CN 201610903042 A CN201610903042 A CN 201610903042A CN 106324942 A CN106324942 A CN 106324942A
- Authority
- CN
- China
- Prior art keywords
- light
- brake sack
- filter coating
- transparent area
- sack
- 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
- 238000003384 imaging method Methods 0.000 title claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims description 58
- 238000000576 coating method Methods 0.000 claims description 58
- 238000001914 filtration Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 206010052128 Glare Diseases 0.000 description 5
- 230000004313 glare Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
- G03B11/00—Filters or other obturators specially adapted for photographic purposes
- G03B11/04—Hoods or caps for eliminating unwanted light from lenses, viewfinders or focusing aids
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Filters (AREA)
Abstract
The invention relates to a light-shielding sheet, comprising a round light transmissive plate, wherein the light-shielding sheet is provided with a first side and a second side which are opposed and parallel, and characterizedin that the first side of the light-shielding sheet has a light transmissive region and an opaque region near the light transmissive region. The light-shielding sheet can reduce or eliminate stray light. The invention also provides an imaging lens group comprises the light-shielding sheet.
Description
Technical field
The present invention relates to a kind of optical element, particularly to a kind of brake sack and the imaging lens group with this brake sack.
Background technology
Along with the development of electronic device industry, increasing application needs imaging device to assist, thus completes more
Complicated function is so that the performance of application product and service quality in lifting field.
Camera lens module includes a lens barrel, be assembled in this lens barrel one group of lens group and a brake sack.Brake sack
Effect is regulation luminous flux in optical system, when ambient enters camera lens, and can via brake sack between the lenses
Stop that unwanted light enters.Common brake sack in the mobile lens of prior art, is that thin rounded flakes band one printing opacity is worn
The structure in hole, and printing opacity perforation interior side-wall surface be all without any process.When light is radiated at the section of brake sack printing opacity perforation
Time, optical system, from fault plane reflection and the light of diffusion, can interfere by it, and these veiling glares can produce in lens imaging face
The image that ghost or solar flare etc. are unnecessary.Lens is relatively big in early days, brake sack section thickness more than lens length hour, these
The impact of veiling glare is not notable, but is, when brake sack thickness accounting improves, to be especially used in thin type cell phone when lens length reduces
During camera lens, the most particularly significant in ghost and the solar flare phenomenon of imaging surface.If it addition, in the loophole interior side-wall surface of brake sack
Coating delustring paint, although this mode can solve the problem that loophole medial wall is reflective, but which task difficulty is big, performance
Instability, and need bigger cost.Therefore, the veiling glare phenomenon that brake sack section causes how is improved the most critically important.
The present invention i.e. researchs and proposes for the deficiencies in the prior art.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of brake sack, can efficiently reduce veiling glare phenomenon.
The brake sack of the present invention, is installed in inside camera lens, and it includes one piece of circular light-transmitting plate, and described brake sack has phase
To and parallel first and second, the first mask of this brake sack has a transparent area and the screening around this transparent area
Light district.
Further, second all transparent area of described brake sack or there is a transparent area and at this transparent area
Shading region around.
Further, the transparent area of described brake sack first projection plane on described brake sack second, completely
It is included by the transparent area of described brake sack second.
Further, the transparent area surface-coated of described brake sack first has function filter coating, and this function filter coating selects
One in infrared cut of light filter coating, ultraviolet light cut-off light filtering films, low pass filter coating, anti-reflection film.
Further, the transparent area surface-coated of described brake sack second has function filter coating, and this function filter coating selects
One in infrared cut of light filter coating, ultraviolet light cut-off light filtering films, low pass filter coating, anti-reflection film.
A kind of imaging lens group, the one group of lens group comprise a lens barrel, being assembled in this lens barrel and a brake sack, its
Being characterised by, described brake sack is any of the above-described brake sack.
Compared with prior art, the beneficial effect comprise that:
The middle light hole of the present invention is solid, and light shield layer is by one layer of black matt covered on circular light-transmitting plate
Coating realizes shaded effect.So can effectively brake sack section thickness be preferably minimized, the thickness of black matt coating
Generally in micron level, effectively reduce reflection and diffusion that incident ray produces at section, thus it is existing to substantially reduce veiling glare
As.
Accompanying drawing explanation
Fig. 1 is the brake sack body construction schematic diagram that the first embodiment of the present invention provides.
Fig. 2 is the brake sack generalized section that the first embodiment of the present invention provides.
Fig. 3 is first schematic diagram of brake sack that the first embodiment of the present invention provides.
Fig. 4 is second schematic diagram of brake sack that the first embodiment of the present invention provides.
Fig. 5 is the brake sack generalized section that the second embodiment of the present invention provides.
Fig. 6 is first schematic diagram of brake sack that the second embodiment of the present invention provides.
Fig. 7 is second schematic diagram of brake sack that the second embodiment of the present invention provides.
Fig. 8 is the brake sack generalized section that the third embodiment of the present invention provides.
Fig. 9 is first schematic diagram of brake sack that the second embodiment of the present invention provides.
Figure 10 is second schematic diagram of brake sack that the second embodiment of the present invention provides.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawing each reality to the present invention
The mode of executing is explained in detail.
The first embodiment of the present invention provides a kind of brake sack, as shown in Figures 1 to 4.
As it is shown in figure 1, the body of brake sack 10 is to have certain thickness circular light-transmitting plate, have relative and parallel
First face 101 and the second face 102, the material of this light-transmitting plate can be the light transmissive material such as plastics or glass.
As shown in Figure 2 and Figure 3, surface, central transparent area covering function filter coating on the first face 101 of this light-transmitting plate 10
103, this filter coating can select according to different demands, can be infrared cut of light filter coating, ultraviolet light cut-off light filtering films,
One in low pass filter coating, anti-reflection film or other types filter coating；For to be coated with black matt coating around transparent area
Light shield layer 103.
As shown in Figure 2, Figure 4 shows, the second all transparent areas in face 102 of this light-transmitting plate 10, surface covering function filter coating
105, this filter coating can select according to different demands, can be infrared cut of light filter coating, ultraviolet light cut-off light filtering films,
One in low pass filter coating, anti-reflection film or other types filter coating.
The second embodiment of the present invention provides a kind of brake sack, as shown in Figures 5 to 7.The body of brake sack 20 is to have
Certain thickness circular light-transmitting plate, has the first relative and parallel face 201 and the second face 202, material of this light-transmitting plate
It can be the light transmissive material such as plastics or glass.
As shown in Figure 5, Figure 6, surface, central transparent area covering function filter coating on the first face 201 of this light-transmitting plate 20
203, this filter coating can select according to different demands, can be infrared cut of light filter coating, ultraviolet light cut-off light filtering films,
One in low pass filter coating, anti-reflection film or other types filter coating；For to be coated with black matt coating around transparent area
Light shield layer 203.
As shown in Figure 5, Figure 7, surface, central transparent area covering function filter coating on the second face 202 of this light-transmitting plate 20
205, this filter coating can select according to different demands, can be infrared cut of light filter coating, ultraviolet light cut-off light filtering films,
One in low pass filter coating, anti-reflection film or other types filter coating；For to be coated with black matt coating around transparent area
Light shield layer 206.In the present embodiment, this light-transmitting plate first face is coated with the transparent area 203 of function filter coating in the second face 202
On projection plane, the transparent area 205 being coated with function filter coating with the second face is completely superposed.
The third embodiment of the present invention provides a kind of brake sack, as shown in Fig. 8 to Figure 10.The body of brake sack 30 is to have
Certain thickness circular light-transmitting plate, has the first relative and parallel face 301 and the second face 302, material of this light-transmitting plate
It can be the light transmissive material such as plastics or glass.
As shown in Figure 8, Figure 9, surface, central transparent area covering function filter coating on the first face 301 of this light-transmitting plate 30
303, this filter coating can select according to different demands, can be infrared cut of light filter coating, ultraviolet light cut-off light filtering films,
One in low pass filter coating, anti-reflection film or other types filter coating；For to be coated with black matt coating around transparent area
Light shield layer 303.
As shown in Fig. 8, Figure 10, surface, central transparent area covering function filter coating on the second face 302 of this light-transmitting plate 30
305, this filter coating can select according to different demands, can be infrared cut of light filter coating, ultraviolet light cut-off light filtering films,
One in low pass filter coating, anti-reflection film or other types filter coating；For to be coated with black matt coating around transparent area
Light shield layer 306.In the present embodiment, this light-transmitting plate first face is coated with the transparent area 303 of function filter coating in the second face 302
On projection plane, be coated with the transparent area 305 of function filter coating by the second face completely and be included.
It addition, it will be understood to those skilled in the art that the respective embodiments described above are to realize the specific embodiment of the present invention,
And in actual applications, it is also possible to doing other change according to the spirit of the present invention, these are according to the change done by spirit of the present invention
Change, within all should being included in scope of the present invention.
Claims (6)
1. a brake sack, it includes one piece of circular light-transmitting plate, and described brake sack has relative and parallel first and
Two, it is characterised in that: the first mask of this brake sack has a transparent area and the shading region around this transparent area.
Brake sack the most according to claim 1, it is characterised in that: second all transparent area of described brake sack or tool
There are a transparent area and the shading region around this transparent area.
Brake sack the most according to claim 2, it is characterised in that: the transparent area of described brake sack first is in described shading
Projection plane on sheet second, is included by the transparent area of described brake sack second completely.
Brake sack the most according to claim 1, it is characterised in that: the transparent area surface-coated of described brake sack first has
Function filter coating, this function filter coating is selected from infrared cut of light filter coating, ultraviolet light cut-off light filtering films, low pass filter coating, anti-reflection
One in film.
Brake sack the most according to claim 2, it is characterised in that: the transparent area surface-coated of described brake sack second has
Function filter coating, this function filter coating is selected from infrared cut of light filter coating, ultraviolet light cut-off light filtering films, low pass filter coating, anti-reflection
One in film.
6. an imaging lens group, the one group of lens group comprise a lens barrel, being assembled in this lens barrel and a brake sack, it is special
Levying and be, described brake sack is arbitrary described brake sack in claim 1 ~ 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903042.5A CN106324942A (en) | 2016-10-17 | 2016-10-17 | Light-shielding sheet and imaging lens group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610903042.5A CN106324942A (en) | 2016-10-17 | 2016-10-17 | Light-shielding sheet and imaging lens group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106324942A true CN106324942A (en) | 2017-01-11 |
Family
ID=57818861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610903042.5A Pending CN106324942A (en) | 2016-10-17 | 2016-10-17 | Light-shielding sheet and imaging lens group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106324942A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125291A1 (en) * | 2018-12-20 | 2020-06-25 | 宁波舜宇光电信息有限公司 | Imaging assembly and method for manufacturing same, camera module, and electronic device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003029314A (en) * | 2001-07-17 | 2003-01-29 | Somar Corp | Shading film |
| JP2007206299A (en) * | 2006-02-01 | 2007-08-16 | Citizen Electronics Co Ltd | Imaging structure for camera |
| CN101872033A (en) * | 2009-04-24 | 2010-10-27 | 鸿富锦精密工业（深圳）有限公司 | Light-shielding sheet array, manufacturing method of light-shielding sheet array, and lens module array |
| CN102062923A (en) * | 2009-11-17 | 2011-05-18 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| JP2013105123A (en) * | 2011-11-16 | 2013-05-30 | Sumitomo Metal Mining Co Ltd | Black high heat radiation light-shielding film and manufacturing method of the same, and diaphragm, blade material, light quantity adjustment module, and light-shielding tape using the film |
| CN204903792U (en) * | 2015-08-11 | 2015-12-23 | 大立光电股份有限公司 | Shading sheet, lens set and image lens |
| CN206147236U (en) * | 2016-10-17 | 2017-05-03 | 厦门颉轩光电有限公司 | Anti -dazzling screen and imaging lens group |
-
2016
- 2016-10-17 CN CN201610903042.5A patent/CN106324942A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003029314A (en) * | 2001-07-17 | 2003-01-29 | Somar Corp | Shading film |
| JP2007206299A (en) * | 2006-02-01 | 2007-08-16 | Citizen Electronics Co Ltd | Imaging structure for camera |
| CN101872033A (en) * | 2009-04-24 | 2010-10-27 | 鸿富锦精密工业（深圳）有限公司 | Light-shielding sheet array, manufacturing method of light-shielding sheet array, and lens module array |
| CN102062923A (en) * | 2009-11-17 | 2011-05-18 | 鸿富锦精密工业（深圳）有限公司 | Lens module |
| JP2013105123A (en) * | 2011-11-16 | 2013-05-30 | Sumitomo Metal Mining Co Ltd | Black high heat radiation light-shielding film and manufacturing method of the same, and diaphragm, blade material, light quantity adjustment module, and light-shielding tape using the film |
| CN204903792U (en) * | 2015-08-11 | 2015-12-23 | 大立光电股份有限公司 | Shading sheet, lens set and image lens |
| CN206147236U (en) * | 2016-10-17 | 2017-05-03 | 厦门颉轩光电有限公司 | Anti -dazzling screen and imaging lens group |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125291A1 (en) * | 2018-12-20 | 2020-06-25 | 宁波舜宇光电信息有限公司 | Imaging assembly and method for manufacturing same, camera module, and electronic device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |