CN105116512A - Economical prime lens for M12 interfaces - Google Patents
Economical prime lens for M12 interfaces Download PDFInfo
- Publication number
- CN105116512A CN105116512A CN201510599883.7A CN201510599883A CN105116512A CN 105116512 A CN105116512 A CN 105116512A CN 201510599883 A CN201510599883 A CN 201510599883A CN 105116512 A CN105116512 A CN 105116512A
- Authority
- CN
- China
- Prior art keywords
- lens
- group
- economical
- double convex
- prime
- 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.)
- Granted
Links
Classifications
-
- 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
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
-
- 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
- G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
Abstract
The invention relates to an economical prime lens for M12 interfaces. The mechanical structure of the lens comprises a main lens barrel used for installing a front group A and a back group B. The front side of the main lens barrel is provided with a pressing ring. The optical system of the lens is provided with the front group A with negative focal power and the back group B with positive focal power in a light incidence direction in order. The front group A is a double concave lens A and the back group B is successively provided with a double convex lens B-1 and a glued component, the glued component consists of a double convex lens B-2 and a double convex lens B-3 which are in sealing connection. The air gap between the front group A and the back group B is 8.46mm; the air gap between the double convex lens B-1 and the glued component is 2.8 mm. Separating rings are arranged between the front group A and the back group B and between the double convex lens B-1 and the glued component. The prime lens of the invention has a low distortion and the resolution of the prime lens is more than 2 million pixels. The prime lens can be used both at day and night.
Description
Technical field
The present invention relates to the economical tight shot of a kind of M12 interface.
Background technology
Micro television CCTV camera is through the evolution of 20 ~ 30 years and development; there is the micro pick-up lens of varied specifications and models to support the use with it at present. but the performance index of these camera lenses are very different; great majority belong to low grade products; performance index are low, only adapt to the common camera of 20 ~ 300,000 pixels; The spectral range adapted to is narrow, can only use in the daytime of 480nm ~ 700nm under light condition, and pattern distortion amount is comparatively large, and pattern distortion and visions of reality picture difference become large, and authenticity is poor, and these all can not meet current needs.
Summary of the invention
In order to overcome the deficiencies in the prior art, meet the demand of the high definition of miniature video camera, promote the image quality of miniature video camera system, improve the authenticity of picture, expand the range of application of miniature camera system, overcome micro pick-up lens prior art performance index this defect low, inventor is devoted to the research of micro pick-up lens high resolving power and wide spectral confocal technology, for miniature video camera system a kind of low distortion is provided, resolution is better than 2,000,000 pixels, the economical tight shot of M12 interface of day and night.
Technical scheme of the present invention is, the economical tight shot of a kind of M12 interface, it is characterized in that: the physical construction of described camera lens comprises the body tube for installing front group of A and rear group of B, be provided with trim ring on front side of described body tube, the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A and focal power is rear group of positive B.
Further, before described, group A is biconcave lens A, and described rear group of B is provided with the gummed group that biconvex lens B-1, biconvex lens B-2 and concave-convex lens B-3 touch successively.
Further, the airspace between described front group of A and rear group of B is 8.46mm, and the airspace between described biconvex lens B-1 and gummed group is 2.8mm.
Further, between described front group of A and rear group of B, spacer ring is provided with between biconvex lens B-1 and gummed group.
Compared with prior art, the present invention has following beneficial effect: low distortion, resolution are better than 2,000,000 pixels, day and night.
Below in conjunction with the drawings and specific embodiments, elaboration detailed is further done to the present invention.
Accompanying drawing explanation
Fig. 1 is the optical system diagram of the embodiment of the present invention.
Fig. 2 is the mechanical construction drawing of the embodiment of the present invention.
In figure:
1-biconcave lens A; 2-biconvex lens B-1; 3-biconvex lens B-2; 4-concave-convex lens B-3; 5-image planes; 6-gummed group; 7-body tube; 8-trim ring; 9-spacer ring.
Embodiment
As shown in Figure 1 and 2, the economical tight shot of a kind of M12 interface, it is characterized in that: the physical construction of described camera lens comprises the body tube for installing front group of A and rear group of B, be provided with trim ring on front side of described body tube, the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A and focal power is rear group of positive B.
In the present embodiment, before described, group A is biconcave lens A, and described rear group of B is provided with the gummed group that biconvex lens B-1, biconvex lens B-2 and concave-convex lens B-3 touch successively.
In the present embodiment, the airspace between described front group of A and rear group of B is 8.46mm, and the airspace between described biconvex lens B-1 and gummed group is 2.8mm.
In the present embodiment, for ensureing airspace and optical axis assembling thereof, between described front group of A and rear group of B, between biconvex lens B-1 and gummed group, spacer ring is provided with.
In the present embodiment, when optical design, aberration correction and balance are carried out to the wide spectral range of 485 ~ 850nm, make camera lens all have excellent picture element at wide spectral range, achieve wide spectral confocal.Such camera lens can not only blur-free imaging under photoenvironment in the daytime, under night pole low-light (level) environment, by infrared light filling, and also can blur-free imaging.
In the present embodiment, select the optical glass material of high refraction, low dispersion, by computer optics Computer Aided Design and correct optical lens various aberrations with optimizing, make the resolution of camera lens high, low distortion, can adapt to the requirement of 2,000,000 pixel high definition video shootings.
In the present embodiment, this invention both in conjunction with market optical parametric and solution as demand, degree of depth excavation is carried out on the basis of forefathers, ensure that comparatively loose tolerance simultaneously, thus accomplish higher cost performance.
In the present embodiment, when structural design, both ensured the accurate of the concentricity of camera lens, precision and axial location, and made again structural design compact small and exquisite, can be applicable to the occasion that structure is compacter, such as small-sized ball machine, hemisphere machine etc., its applicable surface is wider.Wherein all constitutional details adopt NC super machining technique, and meet the strict demand of optical design to air distance, make the compact conformation of camera lens, volume is little, lightweight.
In the present embodiment, the technical indicator of this camera lens realization is as follows: focal length: f '=2.8mm; Relative aperture F=2.0; Horizontal field of view angle: 1/4Full90o; Optical distortion :-63%; Resolution (projector): center: 125lp/mm φ 4 encloses: 125lp/mm; Interface type: M12 × 0.5; Image planes size: 1/4 "; Aperture type: Fixed; Working temperature :-20 DEG C-60 DEG C.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. the economical tight shot of M12 interface, it is characterized in that: the physical construction of described camera lens comprises the body tube for installing front group of A and rear group of B, be provided with trim ring on front side of described body tube, the optical system of described camera lens along light direction be provided with successively focal power be negative before organize A and focal power is rear group of positive B.
2. the economical tight shot of M12 interface according to claim 1, is characterized in that: before described, group A is biconcave lens A, and described rear group of B is provided with the gummed group that biconvex lens B-1, biconvex lens B-2 and concave-convex lens B-3 touch successively.
3. the economical tight shot of M12 interface according to claim 2, is characterized in that: the airspace between described front group of A and rear group of B is 8.46mm, and the airspace between described biconvex lens B-1 and gummed group is 2.8mm.
4. the economical tight shot of M12 interface according to claim 2, is characterized in that: between described front group of A and rear group of B, be provided with spacer ring between biconvex lens B-1 and gummed group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510599883.7A CN105116512B (en) | 2015-09-21 | 2015-09-21 | The economical tight shot of M12 interfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510599883.7A CN105116512B (en) | 2015-09-21 | 2015-09-21 | The economical tight shot of M12 interfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105116512A true CN105116512A (en) | 2015-12-02 |
| CN105116512B CN105116512B (en) | 2017-10-31 |
Family
ID=54664540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510599883.7A Active CN105116512B (en) | 2015-09-21 | 2015-09-21 | The economical tight shot of M12 interfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105116512B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526816A (en) * | 2016-12-16 | 2017-03-22 | 福建福光光电科技有限公司 | 3.6 mm super economical plastic aspheric day-night dual-purpose high-definition fixed-focus lens |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090290216A1 (en) * | 2008-05-26 | 2009-11-26 | Canon Kabushiki Kaisha | Zoom lens and image pickup apparatus having the same |
| CN103513400A (en) * | 2013-08-29 | 2014-01-15 | 利达光电股份有限公司 | Wide-angle high-resolution pick-up lens |
| CN204496091U (en) * | 2015-02-11 | 2015-07-22 | 福建福光数码科技有限公司 | The economic money micro-lens of high resolution day and night |
| CN204989590U (en) * | 2015-09-21 | 2016-01-20 | 福建福光股份有限公司 | Economical tight shot of M12 interface |
-
2015
- 2015-09-21 CN CN201510599883.7A patent/CN105116512B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090290216A1 (en) * | 2008-05-26 | 2009-11-26 | Canon Kabushiki Kaisha | Zoom lens and image pickup apparatus having the same |
| CN103513400A (en) * | 2013-08-29 | 2014-01-15 | 利达光电股份有限公司 | Wide-angle high-resolution pick-up lens |
| CN204496091U (en) * | 2015-02-11 | 2015-07-22 | 福建福光数码科技有限公司 | The economic money micro-lens of high resolution day and night |
| CN204989590U (en) * | 2015-09-21 | 2016-01-20 | 福建福光股份有限公司 | Economical tight shot of M12 interface |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526816A (en) * | 2016-12-16 | 2017-03-22 | 福建福光光电科技有限公司 | 3.6 mm super economical plastic aspheric day-night dual-purpose high-definition fixed-focus lens |
| CN106526816B (en) * | 2016-12-16 | 2019-01-29 | 福建福光光电科技有限公司 | The aspherical day and night high-definition fixed-focus camera lens of 3.6mm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105116512B (en) | 2017-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103439782B (en) | 2.8 focus bugeye lens | |
| CN103913818B (en) | The low distortion micro pick-up lens of Large visual angle | |
| CN104330873B (en) | High resolution day and night fish eye lens | |
| CN103984077B (en) | High resolution day and night tight shot | |
| CN103399391B (en) | Ten million pixel large target surface day and night micro pick-up lens | |
| CN204229037U (en) | High resolution day and night fish eye lens | |
| CN104459950B (en) | High resolution day and night micro-lens | |
| CN103389562B (en) | 5 mega-pixel micro camera lens with large target surface | |
| CN104808314A (en) | Fisheye lens adapted to high-pixel large-target-surface chip | |
| CN203455537U (en) | Ten-million-pixel large-target-surface night and day miniature camera lens | |
| CN204556943U (en) | High resolving power, low distortion day and night tight shot | |
| CN104181674B (en) | High-resolution fine setting day and night tight shot | |
| CN204989590U (en) | Economical tight shot of M12 interface | |
| CN204496091U (en) | The economic money micro-lens of high resolution day and night | |
| CN105116512A (en) | Economical prime lens for M12 interfaces | |
| CN203870318U (en) | High-resolution day-night prime lens | |
| CN104090349B (en) | High resolution day and night CS interface tight shot | |
| CN203759343U (en) | Small-target-surface high-resolution ultra-wide-angle fish-eye lens | |
| CN204009196U (en) | Economical high resolution day and night tight shot | |
| CN103823291B (en) | Little target surface high resolving power ultra-wide angle fish eye lens | |
| CN203825276U (en) | Large-viewing-field low-distortion micro camera lens | |
| CN204287586U (en) | High resolution day and night micro-lens | |
| CN204086659U (en) | High resolving power fine setting day and night tight shot | |
| CN105068219A (en) | High-resolution fisheye lens for day and night use and focusing method thereof | |
| CN103389565B (en) | Low-distortion and high-resolution infrared miniature lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |