CN102902036A - Lens module - Google Patents
Lens module Download PDFInfo
- Publication number
- CN102902036A CN102902036A CN2011102105409A CN201110210540A CN102902036A CN 102902036 A CN102902036 A CN 102902036A CN 2011102105409 A CN2011102105409 A CN 2011102105409A CN 201110210540 A CN201110210540 A CN 201110210540A CN 102902036 A CN102902036 A CN 102902036A
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- CN
- China
- Prior art keywords
- eyeglass
- dazzling screen
- lens module
- camera lens
- medial surface
- 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.)
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Abstract
The present invention provides a kind of lens module,It include lens barrel and the first eyeglass being accommodated in lens barrel,Second eyeglass and anti-dazzling screen; Lens barrel includes object side and the image side opposite with object side,First eyeglass is arranged adjacent to object side,Second eyeglass is arranged adjacent to image side; Anti-dazzling screen is arranged at intervals between the first eyeglass and the second eyeglass; Anti-dazzling screen includes the first surface towards object side and the second surface towards image side,And unthreaded hole through first surface and second surface is offered,Unthreaded hole includes medial surface; First surface and medial surface intersection are provided with chamfer,Chamfer includes an inclined-plane,The angle α towards object side is formed between inclined-plane and medial surface,The angle α meets conditional:
, wherein I1 is unthreaded hole in the aperture of second surface, and I2 is unthreaded hole in the aperture of first surface, and X is thickness of the anti-dazzling screen on optical axis direction, and Z is width of the medial surface on optical axis direction. By the way that chamfer is arranged on anti-dazzling screen, reduce the reflected light line in the image of imaging.
Description
Technical field
The present invention relates to a kind of camera lens module, particularly a kind of camera lens module with anti-dazzling screen.
Background technology
The camera lens module comprises a lens barrel and is assembled in one first eyeglass, one second eyeglass and an anti-dazzling screen in the described lens barrel.Described anti-dazzling screen is disposed between described the first eyeglass and the second eyeglass, and this anti-dazzling screen is used for blocking unnecessary light, to prevent spurious rays.
It is circular that yet traditional anti-dazzling screen all is, and it comprises a medial surface, and described medial surface is generally the plane.When described camera lens module uses major light to take as the lamp source in the environment of darkroom, when if the angle between described lamp source and the camera lens is larger, after the light that this major light is launched shines the medial surface of described anti-dazzling screen, will be projected to described the second eyeglass, thereby in the image of imaging, produce serious reflected light line.
Summary of the invention
In view of this, be necessary to provide a kind of and can reduce the camera lens module that produces the reflected light line.
A kind of camera lens module, it comprises a lens barrel and is contained in one first eyeglass, one second eyeglass and an anti-dazzling screen in the described lens barrel; Described lens barrel comprises a thing side and a picture side relative with described thing side, and the contiguous thing side of described the first eyeglass arranges, and relative the first eyeglass vicinity of described the second eyeglass is as the side setting; Described anti-dazzling screen is disposed between described the first eyeglass and the second eyeglass; Described anti-dazzling screen comprises one towards the first surface of described thing side and a second surface towards the picture side, and offers a unthreaded hole that runs through described first surface and second surface, and described unthreaded hole comprises a medial surface; Described first surface and medial surface intersection are provided with a chamfer, and described chamfer comprises an inclined-plane, form an angle α towards the thing side between described inclined-plane and the described medial surface, this angle α formula that satisfies condition:
Wherein, I1 be unthreaded hole in the aperture of second surface, I2 be unthreaded hole in the aperture of first surface, X be anti-dazzling screen along the thickness on the optical axis direction, Z is that medial surface is along the width on the optical axis direction.
Anti-dazzling screen in the camera lens module provided by the invention is by arranging a chamfering at described first surface and medial surface intersection, reduced after described medial surface reflection being projected to the light of described the second eyeglass, thereby reduced reflected light line in the image of imaging.
Description of drawings
Fig. 1 is the cut-open view of the camera lens module that provides of embodiment of the present invention.
Fig. 2 is the schematic perspective view of the anti-dazzling screen of camera lens module among Fig. 1.
Fig. 3 is the cut-open view of the anti-dazzling screen among Fig. 2.
Fig. 4 is that traditional camera lens module becomes 15 degree captured image during angle with light source.
Fig. 5 is camera lens module that embodiment of the present invention provides captured image when becoming 15 degree angle with light source.
The main element symbol description
| The |
100 |
| |
10 |
| The |
11 |
| The |
12 |
| |
13 |
| The |
20 |
| The |
21 |
| The first |
22 |
| The |
30 |
| The |
31 |
| The second |
32 |
| |
40 |
| First surface | 41 |
| Second surface | 42 |
| Medial surface | 43 |
| Chamfer | 44 |
| The inclined-plane | 441 |
| Unthreaded hole | 45 |
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
As shown in Figure 1, be a kind of camera lens module 100 that first embodiment of the invention provides, it comprises a lens barrel 10 and is contained in one first eyeglass 20, one second eyeglass 30 and an anti-dazzling screen 40 in the described lens barrel 10.
Described lens barrel 10 is cylindric, it comprise a semi-enclosed thing side 11, one untight as side 12 and one with described thing side 11 and the accommodation space 13 that all is connected as side 12.
Described the first eyeglass 20 is housed in the described accommodation space 13 and close described thing side 11.Described the first eyeglass 20 comprises the first non-optical division 22 that one first optics section 21 reaches around described the first optics section 21.
Described the second eyeglass 30 is housed in the described accommodation space 13 and relatively described the first eyeglass 20 close described picture sides 12.Described the second eyeglass 30 comprises the second non-optical division 32 that one second optics section 31 reaches around described the second optics section 31.
In the present embodiment, described the first eyeglass 20 and the second eyeglass 30 are by glass or be made of plastics, and are spherical lens or are non-spherical lens.Be appreciated that described camera lens module 100 can also comprise prismatic glasses, the 4th eyeglass etc.
Shown in Fig. 2-3, described anti-dazzling screen 40 is made by elastic material and is the hollow circular ring shape.Described anti-dazzling screen 40 is housed in the described accommodation space 13 and is disposed between described the first eyeglass 20 and the second eyeglass 30.Described anti-dazzling screen 40 comprises one towards the first surface 41 of described thing side and a second surface 42 towards the picture side, and offers a unthreaded hole 45 that runs through described first surface 41 and second surface 42, and described unthreaded hole 45 comprises a medial surface 43.Described medial surface 43 is a plane.Described first surface 41 is provided with a chamfer 44 with medial surface 43 intersections.Described chamfer 44 comprises an inclined-plane 441.Form an angle α towards the thing side between described inclined-plane 441 and the described medial surface 43, this angle α formula that satisfies condition:
Wherein, I1 be unthreaded hole in the aperture of second surface 42, I2 be unthreaded hole in the aperture of first surface 41, X be anti-dazzling screen 40 along the thickness on the optical axis direction, Z is that medial surface 43 is along the width on the optical axis direction.
In embodiment, the angle of described angle α is greater than 30 degree and less than 60 degree.Described medial surface 43 along the width Z on the optical axis direction of described lens barrel 10 less than 0.01mm.Described anti-dazzling screen 40 does not hide the first optics section 21 of described the first eyeglass 20 and the second optics section 31 of the second eyeglass 30.
In use, the light that enters from the thing side 11 of lens barrel 10 also is incident upon on the first eyeglass 20, and described anti-dazzling screen 40 will block through the first non-optical division 22 or the light behind the inner reflection of lens barrel 10 of the first eyeglass 20, to prevent spurious rays.And directly be incident upon after the first optics section 21 of a part of light through the first eyeglass 20 on 43 of the medial surfaces of anti-dazzling screen 40, because the described first surface 41 at described anti-dazzling screen 40 is provided with described chamfer 44 with medial surface 43 intersections, so that the area of described medial surface 43 is less, reduced after 43 reflections of described medial surface being projected to the light of described the second eyeglass 30, thereby reduced the reflected light line in the image of imaging.
Shown in Fig. 4-5, the camera lens module 100 that traditional camera lens module and embodiment of the present invention are provided is placed on and uses major light to take as the lamp source in the environment of darkroom, and the angle between described camera lens module 100 and the light source is 15 degree.Image among Fig. 4 is traditional captured image of camera lens module, the image that camera lens module that image among Fig. 5 provides for embodiment of the present invention 100 is captured, through can obviously finding out the contrast of two images, reflected light line quantity obviously reduces in the image of camera lens module 100 imagings that provide in the process present embodiment.
Anti-dazzling screen in the camera lens module provided by the invention is by arranging a chamfering at described first surface and medial surface intersection, reduced after described medial surface reflection being projected to the light of described the second eyeglass, thereby reduced reflected light line in the image of imaging.
Be understandable that, for the person of ordinary skill of the art, can make change and the distortion that other various pictures are answered by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (8)
1. camera lens module, it comprises a lens barrel and is contained in one first eyeglass, one second eyeglass and an anti-dazzling screen in the described lens barrel; Described lens barrel comprises a thing side and a picture side relative with described thing side, and the contiguous thing side of described the first eyeglass arranges, and relative the first eyeglass vicinity of described the second eyeglass is as the side setting; Described anti-dazzling screen is disposed between described the first eyeglass and the second eyeglass; Described anti-dazzling screen comprises one towards the first surface of described thing side and a second surface towards the picture side, and offers a unthreaded hole that runs through described first surface and second surface, and described unthreaded hole comprises a medial surface; Described first surface and medial surface intersection are provided with a chamfer, and described chamfer comprises an inclined-plane, form an angle α towards the thing side between described inclined-plane and the described medial surface, this angle α formula that satisfies condition:
Wherein, I1 be unthreaded hole in the aperture of second surface, I2 be unthreaded hole in the aperture of first surface, X be anti-dazzling screen along the thickness on the optical axis direction, Z is that medial surface is along the width on the optical axis direction.
2. camera lens module as claimed in claim 1 is characterized in that: described medial surface along the width Z on the optical axis direction of described lens barrel less than 0.01mm.
3. camera lens module as claimed in claim 1 is characterized in that: the angle of described angle α is greater than 30 degree and less than 60 degree.
4. camera lens module as claimed in claim 1 is characterized in that: described the first eyeglass comprises one first optics section and around the first non-optical division of described the first optics section.
5. camera lens module as claimed in claim 4 is characterized in that: described the second eyeglass comprises one second optics section and around the second non-optical division of described the second optics section.
6. camera lens module as claimed in claim 5, it is characterized in that: described anti-dazzling screen does not hide the first optics section of described the first eyeglass and the second optics section of the second eyeglass.
7. camera lens module as claimed in claim 1, it is characterized in that: described anti-dazzling screen is made by elastic material.
8. camera lens module as claimed in claim 1, it is characterized in that: described medial surface is a plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102105409A CN102902036A (en) | 2011-07-26 | 2011-07-26 | Lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102105409A CN102902036A (en) | 2011-07-26 | 2011-07-26 | Lens module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102902036A true CN102902036A (en) | 2013-01-30 |
Family
ID=47574369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102105409A Pending CN102902036A (en) | 2011-07-26 | 2011-07-26 | Lens module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102902036A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106950623A (en) * | 2017-05-23 | 2017-07-14 | 陈志刚 | A kind of darkening ring and micro-lens |
| CN107132715A (en) * | 2017-03-27 | 2017-09-05 | 浙江舜宇光学有限公司 | Anti-dazzling screen and camera lens |
| CN111624724A (en) * | 2019-02-27 | 2020-09-04 | 大立光电股份有限公司 | Camera module and electronic device |
| CN112363360A (en) * | 2020-06-15 | 2021-02-12 | 武汉高德智感科技有限公司 | Diaphragm, infrared module and infrared imaging device |
| CN112859274A (en) * | 2019-11-26 | 2021-05-28 | 三营超精密光电(晋城)有限公司 | Optical lens and method for assembling optical 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 |
| CN113805299A (en) * | 2020-06-11 | 2021-12-17 | 玉晶光电(厦门)有限公司 | washer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4964697A (en) * | 1987-11-27 | 1990-10-23 | Canon Kabushiki Kaishi | Lens barrel having circuit board with polygonal aperture |
| JP2003270506A (en) * | 2002-03-15 | 2003-09-25 | Fuji Photo Optical Co Ltd | Optical apparatus and light shielding method |
| CN1734306A (en) * | 2004-08-09 | 2006-02-15 | 日立麦克赛尔株式会社 | Anti dazzling screen, optical instrument and method for manufacturing anti dazzling screen |
| CN1788220A (en) * | 2003-05-15 | 2006-06-14 | 柯尼卡美能达精密光学株式会社 | Optical system and imaging device |
| CN201069481Y (en) * | 2007-07-03 | 2008-06-04 | 凤凰光学(广东)有限公司 | High image quality optical lens |
| US20090225455A1 (en) * | 2008-03-07 | 2009-09-10 | Toyotoshi Kawasaki | Optical component and image pickup unit |
-
2011
- 2011-07-26 CN CN2011102105409A patent/CN102902036A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4964697A (en) * | 1987-11-27 | 1990-10-23 | Canon Kabushiki Kaishi | Lens barrel having circuit board with polygonal aperture |
| JP2003270506A (en) * | 2002-03-15 | 2003-09-25 | Fuji Photo Optical Co Ltd | Optical apparatus and light shielding method |
| CN1788220A (en) * | 2003-05-15 | 2006-06-14 | 柯尼卡美能达精密光学株式会社 | Optical system and imaging device |
| CN1734306A (en) * | 2004-08-09 | 2006-02-15 | 日立麦克赛尔株式会社 | Anti dazzling screen, optical instrument and method for manufacturing anti dazzling screen |
| CN201069481Y (en) * | 2007-07-03 | 2008-06-04 | 凤凰光学(广东)有限公司 | High image quality optical lens |
| US20090225455A1 (en) * | 2008-03-07 | 2009-09-10 | Toyotoshi Kawasaki | Optical component and image pickup unit |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132715A (en) * | 2017-03-27 | 2017-09-05 | 浙江舜宇光学有限公司 | Anti-dazzling screen and camera lens |
| CN106950623A (en) * | 2017-05-23 | 2017-07-14 | 陈志刚 | A kind of darkening ring and micro-lens |
| CN111624724A (en) * | 2019-02-27 | 2020-09-04 | 大立光电股份有限公司 | Camera module and electronic device |
| CN112859274A (en) * | 2019-11-26 | 2021-05-28 | 三营超精密光电(晋城)有限公司 | Optical lens and method for assembling optical 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 |
| CN113805299A (en) * | 2020-06-11 | 2021-12-17 | 玉晶光电(厦门)有限公司 | washer |
| CN112363360A (en) * | 2020-06-15 | 2021-02-12 | 武汉高德智感科技有限公司 | Diaphragm, infrared module and infrared imaging device |
| CN112363360B (en) * | 2020-06-15 | 2022-12-13 | 武汉高德智感科技有限公司 | Diaphragm, infrared module and infrared imaging device |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130130 |