CN205562934U - A pan focus camera lens for small -size digital camera - Google Patents
A pan focus camera lens for small -size digital camera Download PDFInfo
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- CN205562934U CN205562934U CN201620289857.4U CN201620289857U CN205562934U CN 205562934 U CN205562934 U CN 205562934U CN 201620289857 U CN201620289857 U CN 201620289857U CN 205562934 U CN205562934 U CN 205562934U
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- lens
- eyeglass
- convex
- camera lens
- pan focus
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Abstract
The utility model provides a pan focus camera lens for small -size digital camera, accessory things side to picture side is coaxial to be included in proper order: have the convex -concave spherical lens's of positive refraction power first lens, have the convex -concave spherical lens's of positive refraction power second lens, have the convex -concave spherical lens's of negative refraction power third lens, have the unsmooth spherical lens's of negative refraction power fourth lens, have the biconvex spherical lens's of positive refraction power the 5th lens, be provided with the diaphragm between third lens and the fourth lens. The beneficial effects of the utility model are that be applicable to small -size digital camera, each lens of constituteing the camera lens uses the processing of sphere optical glass entirely, processes simplyr, can reach 50 degrees the angle of vision, and system's image quality is higher.
Description
Technical field
This utility model belongs to field of optical lens, especially relates to a kind of general for small digital cameras
Zoom lens.
Background technology
Pan focus camera lens, is also hyperfocal distance camera lens, it is simply that limits the front depth of field of camera lens, allows the rear depth of field extend to
Infinity, as long as beyond pan focus camera lens certain distance, it is not necessary to it is the most clear that focusing also can be taken
Photo, the effect of distant view is all focus, and the view on photo is all clearly；But it is existing general
Zoom lens can not meet big visual field, small size, high image quality simultaneously and use the requirement of spherical design completely,
Not being suitable for microminiature digital camera, the angle of visual field is less than normal, and compared to complete spherical design processing also
Increasingly complex.
Utility model content
In view of this, this utility model is directed to a kind of pan focus camera lens for small digital cameras, suitable
For small digital cameras, each eyeglass of composition camera lens uses spherical optics glass processing entirely, and processing is more
Simply, it is possible to reaching the angle of visual field of 50 degree, system imaging quality is higher.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
A kind of pan focus camera lens for small digital cameras, includes to image side the most successively from thing side:
First eyeglass, has the convex-concave spherical lens of positive refracting power, is convex surface towards first of thing side,
It is concave surface towards second of image side；
Second eyeglass, has the convex-concave spherical lens of positive refracting power, is convex surface towards first of thing side,
It is concave surface towards second of image side；
3rd eyeglass, has the convex-concave spherical lens of negative refractive power, is convex surface towards first of thing side,
It is concave surface towards second of image side；
4th eyeglass, has the concave-convex aspheric lens of negative refractive power, is concave surface towards first of thing side,
It is convex surface towards second of image side；
5th eyeglass, has the biconvex spherical lens of positive refracting power, is convex surface towards first of thing side,
It is convex surface towards second of image side.
Further, between described 3rd eyeglass and described 4th eyeglass, it is provided with diaphragm, described diaphragm
Radius is 0.6mm to 1.0mm.
Further, the focal range of described first eyeglass is 7.8mm to 8.5mm, and ranges of indices of refraction is
1.60 to 1.66.
Further, the focal range of described second eyeglass is 3.75mm to 3.90mm, ranges of indices of refraction
Be 1.70 to 1.75.
Further, the focal range of described 3rd eyeglass is-2.65mm to-2.90mm, ranges of indices of refraction
Be 1.75 to 1.79.
Further, the focal range of described 4th eyeglass is-13.1mm to-13.90mm, refractive index model
Enclose is 1.75 to 1.79.
Further, the focal range of described 5th eyeglass is 5.01mm to 5.02mm, ranges of indices of refraction
Be 1.70 to 1.75.
Relative to prior art, the pan focus camera lens for small digital cameras described in the utility model has
Following advantage:
The optics overall length forming each eyeglass of the present utility model is less than 7mm, and the overall length of camera lens is the shortest, suitable
For microminiature photographing unit and 1/4 inch of imageing sensor, the optical system of the camera lens of each eyeglass composition
Focal length is 4.7mm, and the angle of visual field reaches 50 degree, and the angle of visual field is bigger, and each eyeglass all uses ball
Face optical glass producing forms, and compared to aspherical mirror machining, processing of the present utility model is simpler, this
The MTF of utility model, i.e. optical transfer function, at 150 lines to place's full filed more than 0.4, can apply
Using in 5,000,000 pixels and above rank digital camera, systematical distortion is less than 5%, and optical quality is good, is
The image quality of system is high, can meet big visual field, small size, high image quality and use wanting of spherical design completely
Ask.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing,
Schematic description and description of the present utility model is used for explaining this utility model, is not intended that this reality
With novel improper restriction.In the accompanying drawings:
Fig. 1 is the lens construction schematic diagram of this utility model embodiment；
Fig. 2 is the system optics transmission function structure figure of this utility model embodiment；
Fig. 3 is the systematical distortion figure of this utility model embodiment.
Description of reference numerals:
1-the first eyeglass；2-the second eyeglass；3-the 3rd eyeglass；4-the 4th eyeglass；5-the 5th eyeglass；
6-diaphragm.
Detailed description of the invention
It should be noted that in the case of not conflicting, in embodiment in this utility model and embodiment
Feature can be mutually combined.
Term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicate or hint
Relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ",
The feature of " second " etc. can express or implicitly include one or more this feature.In this reality
With in novel description, except as otherwise noted, " multiple " are meant that two or more.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
This utility model provides a kind of pan focus camera lens for small digital cameras as shown in Figure 1, from thing side
Include the most successively to image side:
First eyeglass 1, has the convex-concave spherical lens of positive refracting power, is convex surface towards first of thing side,
Being concave surface towards second of image side, focal range is 7.8mm to 8.5mm, and ranges of indices of refraction is 1.60
To 1.66；
Second eyeglass 2, has the convex-concave spherical lens of positive refracting power, is convex surface towards first of thing side,
Being concave surface towards second of image side, focal range is 3.75mm to 3.90mm, and ranges of indices of refraction is 1.70
To 1.75；
3rd eyeglass 3, has the convex-concave spherical lens of negative refractive power, is convex surface towards first of thing side,
Being concave surface towards second of image side, focal range is-2.65mm to-2.90mm, and ranges of indices of refraction is
1.75 to 1.79；
4th eyeglass 4, has the concave-convex aspheric lens of negative refractive power, is concave surface towards first of thing side,
Being convex surface towards second of image side, focal range is-13.1mm to-13.90mm, and ranges of indices of refraction is
1.75 to 1.79；
5th eyeglass 5, has the biconvex spherical lens of positive refracting power, is convex surface towards first of thing side,
Being convex surface towards second of image side, focal range is 5.01mm to 5.02mm, and ranges of indices of refraction is 1.70
To 1.75.
Diaphragm 6 it is provided with, the half of described diaphragm 6 between described 3rd eyeglass 3 and described 4th eyeglass 4
Footpath scope is 0.6mm to 1.0mm.
Described first eyeglass 1 uses the spherical optics glass system of the numbered H-LAK5A in light glass storehouse, Chengdu
Become.
Described second eyeglass 2 uses the spherical optics glass system of the numbered H-LAF53 in light glass storehouse, Chengdu
Become.
Described 3rd eyeglass 3 uses the spherical optics glass system of the numbered H-ZF13 in light glass storehouse, Chengdu
Become.
Described 4th eyeglass 4 uses the spherical optics glass system of the numbered H-ZF13 in light glass storehouse, Chengdu
Become.
Described 5th eyeglass 5 uses the spherical optics glass system of the numbered H-LAK54 in light glass storehouse, Chengdu
Become.
The work process of this example: the optics overall length of each eyeglass is less than 7mm, and optical system focal length is
4.7mm, the angle of visual field reaches 50 degree；MTF, i.e. optical transfer function are big to place's full filed at 150 lines
In 0.4, can be applicable to 5,000,000 pixels and above rank digital camera uses；Systematical distortion is less than 5%,
Optical quality is good, and the image quality of system is high.
The foregoing is only preferred embodiment of the present utility model, not new in order to limit this practicality
Type, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement made
Deng, within should be included in protection domain of the present utility model.
Claims (7)
1. the pan focus camera lens for small digital cameras, it is characterised in that: same from thing side to image side
Axle includes successively:
First eyeglass (1), has the convex-concave spherical lens of positive refracting power, towards first of thing side is
Convex surface, is concave surface towards second of image side；
Second eyeglass (2), has the convex-concave spherical lens of positive refracting power, towards first of thing side is
Convex surface, is concave surface towards second of image side；
3rd eyeglass (3), has the convex-concave spherical lens of negative refractive power, towards first of thing side is
Convex surface, is concave surface towards second of image side；
4th eyeglass (4), has the concave-convex aspheric lens of negative refractive power, towards first of thing side is
Concave surface, is convex surface towards second of image side；
5th eyeglass (5), has the biconvex spherical lens of positive refracting power, towards first of thing side is
Convex surface, is convex surface towards second of image side.
Pan focus camera lens for small digital cameras the most according to claim 1, it is characterised in that:
It is provided with diaphragm (6), described diaphragm between described 3rd eyeglass (3) and described 4th eyeglass (4)
(6) radius is 0.6mm to 1.0mm.
Pan focus camera lens for small digital cameras the most according to claim 1, it is characterised in that:
The focal range of described first eyeglass (1) is 7.8mm to 8.5mm, and ranges of indices of refraction is 1.60 to 1.66.
Pan focus camera lens for small digital cameras the most according to claim 1, it is characterised in that:
The focal range of described second eyeglass (2) is 3.75mm to 3.90mm, ranges of indices of refraction be 1.70 to
1.75。
Pan focus camera lens for small digital cameras the most according to claim 1, it is characterised in that:
The focal range of described 3rd eyeglass (3) is-2.65mm to-2.90mm, and ranges of indices of refraction is 1.75
To 1.79.
Pan focus camera lens for small digital cameras the most according to claim 1, it is characterised in that:
The focal range of described 4th eyeglass (4) is-13.1mm to-13.90mm, and ranges of indices of refraction is 1.75
To 1.79.
Pan focus camera lens for small digital cameras the most according to claim 1, it is characterised in that:
The focal range of described 5th eyeglass (5) is 5.01mm to 5.02mm, ranges of indices of refraction be 1.70 to
1.75。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620289857.4U CN205562934U (en) | 2016-04-07 | 2016-04-07 | A pan focus camera lens for small -size digital camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620289857.4U CN205562934U (en) | 2016-04-07 | 2016-04-07 | A pan focus camera lens for small -size digital camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205562934U true CN205562934U (en) | 2016-09-07 |
Family
ID=56810221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620289857.4U Active CN205562934U (en) | 2016-04-07 | 2016-04-07 | A pan focus camera lens for small -size digital camera |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361830A (en) * | 2018-03-26 | 2019-10-22 | 宁波舜宇车载光学技术有限公司 | Optical lens |
-
2016
- 2016-04-07 CN CN201620289857.4U patent/CN205562934U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361830A (en) * | 2018-03-26 | 2019-10-22 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN110361830B (en) * | 2018-03-26 | 2022-07-26 | 宁波舜宇车载光学技术有限公司 | Optical lens |
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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: 20180911 Address after: 244000 science and technology incubator 217, an economic development zone, Shun an town, Yi An District, Tongling, Anhui Patentee after: ANHUI NIUSHAN NEW MATERIALS TECHNOLOGY CO., LTD. Address before: 300000 national autonomous innovation demonstration area, North Gate Town, Jinnan District, Tianjin, A 8, No. 505-33, Gao Ying Road. Patentee before: Pat Technology (Tianjin) Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210707 Address after: Room 01, 6 / F, building 1, courtyard A2, Xisanhuan North Road, Haidian District, Beijing Patentee after: BEIJING BOYA HEZHONG ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 244000 science and technology incubator 217, an economic development zone, Shun an town, Yi An District, Tongling, Anhui Patentee before: ANHUI NIUSHAN NEW MATERIALS TECHNOLOGY Co.,Ltd. |