CN202886717U - Novel wide-angle lens - Google Patents
Novel wide-angle lens Download PDFInfo
- Publication number
- CN202886717U CN202886717U CN 201220462706 CN201220462706U CN202886717U CN 202886717 U CN202886717 U CN 202886717U CN 201220462706 CN201220462706 CN 201220462706 CN 201220462706 U CN201220462706 U CN 201220462706U CN 202886717 U CN202886717 U CN 202886717U
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- China
- Prior art keywords
- lens
- imaging
- eyeglass
- novel wide
- glass
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Abstract
The application discloses a novel wide-angle lens, comprising a lens barrel. Four imaging lenses are coaxially arranged in the lens barrel, and the four imaging lenses are arranged at the direction from the object space to the image space in the sequence as following: the first imaging lens is a glass lens, the second lens is a plastic lens, the third imaging lens is a plastic lens, and the fourth imaging lens is a glass lens. According to the novel wide-angle lens, the fourth imaging lens is a glass lens, the wear resistant performance of a glass lens is fully utilized, glass lens or plastic lens damage caused by contact by a re-dissembling tool to the fourth imaging lens when the novel wide-angle lens is back to be dismounted is prevented, not only is cost increase caused by lens replacement prevented, cost is saved, but also the re-dissembling and assembling speeds are increased, and the production process is guaranteed to be normal.
Description
Technical field
The application relates to field of optical lens, relates in particular to a kind of novel wide-angle camera lens.
Background technology
The optical imaging system that is applicable to a kind of wide-angle lens in camera monitoring system, photograph or the apparatus for making a video recording comprises two plastic lens and two sheet glass eyeglasses, the mode that these four eyeglasses are installed in the lens barrel is generally: along object space to picture side, first eyeglass is glass mirror, second eyeglass is plastic lens, the 3rd eyeglass is glass mirror, and the 4th eyeglass is plastic lens.
Although this wide-angle lens structure can satisfy imaging requirements, yet return in the process of tearing open at camera lens and to be damaged easily, particularly, because camera lens belongs to the high-precision optical instrument, be subjected to the impact of all kinds of factors such as starting material, machining precision, assembling skill level, be difficult in the process accomplish 100% yield, so may exist some bad at aspects such as outward appearance, projections after the completion of processing that these are bad generally all will tear open and finishing overcomes by returning.Yet, camera lens returns in the process of tearing open, owing to return the eyeglass that the instrument of tearing open might contact the camera lens two ends, comprise first eyeglass or the 4th eyeglass, especially the 4th eyeglass, because the 4th eyeglass is plastic lens, and the wearing quality of plastic material is relatively relatively poor, be easy to run into and return the instrument of tearing open and be scratched and scrap, might need to change eyeglass and cause cost to increase or affect the speed of assembling work.
Summary of the invention
The application provides a kind of novel wide-angle camera lens of avoiding damaging eyeglass in returning the process of tearing open.
The application provides a kind of novel wide-angle camera lens, comprise lens barrel, four imaging eyeglasses are installed in the described lens barrel coaxially, the arrangement mode of four described imaging eyeglasses along object space to picture side is: first imaging eyeglass is glass mirror, second imaging eyeglass is plastic lens, the 3rd imaging eyeglass is plastic lens, and the 4th imaging eyeglass is glass mirror.
Further, the spacing between the adjacent described imaging eyeglass is not less than 0.1mm.
The application's beneficial effect is: the 4th eyeglass in the application's the novel wide-angle camera lens adopts glass mirror, take full advantage of the abrasion resistance properties of glass mirror, prevent camera lens in returning the process of tearing open owing to the damage of returning the instrument of tearing open and touch the 4th glass mirror that eyeglass causes or plastic lens, the cost of not only having avoided changing eyeglass and having caused increases, provide cost savings, and improved and returned the speed of tearing open and assembling speed, guaranteed normally carrying out of production technology.
Description of drawings
Fig. 1 is the cross-sectional schematic of the wide-angle lens of a kind of embodiment of the application.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
In the embodiment of the present application, the novel wide-angle camera lens is effectively protected the 4th eyeglass by the material of the 3rd and the 4th eyeglass in the conversion lens barrel, avoids it to return in the process of tearing open impaired at camera lens.
As shown in Figure 1, the wide-angle lens of present embodiment comprises lens barrel 6 and the lens set and other elements that are installed in the lens barrel 6.Wherein lens barrel 6 forms cavity cylindraceous, and lens set is installed in cavity inside cylindraceous.Particularly, lens set comprises four imaging eyeglasses, these imaging eyeglasses adopt convex lens with certain focal length, concavees lens etc. according to concrete needs usually as the part of optical imaging system, these imaging eyeglasses are installed to picture side along object space successively coaxially in lens barrel inside, have rational spacing between the different imaging eyeglasses.
In the present embodiment, these imaging eyeglasses comprise two plastic lens and two glass mirror, particularly, the arrangement mode of these four imaging eyeglasses along object space to picture side is: first imaging eyeglass 1 is glass mirror, second imaging eyeglass 2 is plastic lens, the 3rd imaging eyeglass 3 is plastic lens, and the 4th imaging eyeglass 4 is glass mirror.
Wide-angle lens is in assembling process, be subjected to starting material, machining precision, new employee to assemble the impact of all kinds of factors such as skill level, might exist some bad aspect outward appearance or the image quality, therefore need to return camera lens and tear open and repair, return in the process of tearing open, return the instrument of tearing open 5 and might touch the eyeglass that is installed in lens barrel 6 two ends, comprise first eyeglass and the 4th eyeglass, especially the 4th eyeglass.After the 4th eyeglass of present embodiment adopts glass mirror, on the basis of satisfying the image quality requirement, adopt the structure of plastic lens to compare with the 4th eyeglass in the prior art, because the wearing quality of glass mirror is very strong, when it is returned the instrument of tearing open 5 touching and be not easy to be scratched and damage, can not cause other eyeglass damages of the 4th eyeglass even lens barrel 6 inside and the situation of scrapping yet, therefore the cost of having avoided changing eyeglass and having caused increases, reduced production cost, simultaneously, the novel wide-angle camera lens is owing to eliminate or reduced the scrappage of eyeglass, saved the time of changing eyeglass, therefore guarantee the speed of assembling work, improved the process efficiency of whole production line.
In the present embodiment, spacing between the specification of each eyeglass, the adjacent imaging eyeglass is rationally set according to concrete needs, the spacing that for example can arrange between adjacent two imaging eyeglasses is not less than 0.1mm, avoids the mismachining tolerance of imaging eyeglass or rigging error that image quality is impacted.
The application's novel wide-angle camera lens not only provides cost savings, and is difficult for suffering damage in returning the process of tearing open, compares with existing wide-angle lens, and performance is more stable, reliable.
Above content is the further description of the present invention being done in conjunction with concrete embodiment, can not assert that implementation of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace.
Claims (2)
1. novel wide-angle camera lens, comprise lens barrel, it is characterized in that, four imaging eyeglasses are installed in the described lens barrel coaxially, the arrangement mode of four described imaging eyeglasses along object space to picture side is: first imaging eyeglass is glass mirror, second imaging eyeglass is plastic lens, and the 3rd imaging eyeglass is plastic lens, and the 4th imaging eyeglass is glass mirror.
2. novel wide-angle camera lens as claimed in claim 1 is characterized in that, the spacing between the adjacent described imaging eyeglass is not less than 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462706 CN202886717U (en) | 2012-09-12 | 2012-09-12 | Novel wide-angle lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462706 CN202886717U (en) | 2012-09-12 | 2012-09-12 | Novel wide-angle lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886717U true CN202886717U (en) | 2013-04-17 |
Family
ID=48078126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220462706 Expired - Fee Related CN202886717U (en) | 2012-09-12 | 2012-09-12 | Novel wide-angle lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202886717U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188653A (en) * | 2018-10-26 | 2019-01-11 | 常州工学院 | A kind of symmetrical wide-angle pinhole lens |
-
2012
- 2012-09-12 CN CN 201220462706 patent/CN202886717U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188653A (en) * | 2018-10-26 | 2019-01-11 | 常州工学院 | A kind of symmetrical wide-angle pinhole lens |
| CN109188653B (en) * | 2018-10-26 | 2020-12-01 | 常州工学院 | Symmetrical wide-angle pinhole lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20180912 |