CN209343022U - Minisize vehicle-mounted optical system - Google Patents
Minisize vehicle-mounted optical system Download PDFInfo
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- CN209343022U CN209343022U CN201822225432.9U CN201822225432U CN209343022U CN 209343022 U CN209343022 U CN 209343022U CN 201822225432 U CN201822225432 U CN 201822225432U CN 209343022 U CN209343022 U CN 209343022U
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- biconvex positive
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- positive lens
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- negative lens
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Abstract
The utility model relates to a kind of minisize vehicle-mounted optical systems, including preceding group of eyeglass A, the diaphragm C and rear group eyeglass B set gradually from the object side to the image side, group eyeglass A includes bent moon negative lens A1, double-concave negative lens A2 and biconvex positive lens A3 before described, group eyeglass B includes double-concave negative lens B1, biconvex positive lens B2 after described and biconvex positive lens B3, the double-concave negative lens B1 and biconvex positive lens B2 contiguity are gluing unit.The design of the utility model structure is simple, reasonable, and overall length is shorter, structurally reasonable, meets miniature requirement；Light passing amount is big, and relative illumination is high, and imaging picture brightness is high, and effect is good；Full glass designs, normal imaging under high and low temperature environment, high reliablity.
Description
Technical field
The utility model relates to a kind of minisize vehicle-mounted optical systems.
Background technique
Camera lens is the important component of vehicle-mounted camera, and more and more camera lenses are applied to vehicle-mounted direction at present, right
For on-vehicle lens, safety and reliability is particularly important.Many camera lenses mould hybrid plan using glass in the market, due to plastics
It is aspherical to be affected by temperature big, it easily expands with heat and contract with cold, causes to be imaged under high temperature and low temperature environment unstable, reliability is bad.
Utility model content
In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a kind of minisize vehicle-mounted light
System, it is not only reasonable in design but also efficiently convenient.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is: a kind of minisize vehicle-mounted optical system, packet
Preceding group of eyeglass A, the diaphragm C set gradually from the object side to the image side and rear group eyeglass B is included, it includes that bent moon is negative that eyeglass A is organized before described
Lens A1, double-concave negative lens A2 and biconvex positive lens A3, organizing eyeglass B after described includes double-concave negative lens B1, biconvex positive lens
B2 and biconvex positive lens B3, the double-concave negative lens B1 and biconvex positive lens B2 contiguity are gluing unit.
Further, the airspace between the bent moon negative lens A1 and double-concave negative lens A2 is 1.2mm；The concave-concave
Airspace between negative lens A2 and biconvex positive lens A3 is 0.5mm；The biconvex positive lens B2 and biconvex positive lens B3 it
Between airspace be 0.1mm.
Further, the airspace between the preceding group eyeglass A and rear group eyeglass B is 1.3mm.
Further, plate optical filter is provided between the biconvex positive lens B3 and the imaging surface IMA of camera lens.
Compared with prior art, the utility model has the following beneficial effects: the design of the utility model structure is simple, closes
Reason, overall length is shorter, structurally reasonable, meets miniature requirement；Light passing amount is big, and relative illumination is high, and imaging picture brightness is high, effect
It is good；Full glass designs, normal imaging under high and low temperature environment, high reliablity.
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the optics configuration schematic diagram of the utility model embodiment.
Fig. 2 is the visible light MTF functional value schematic diagram of the utility model embodiment.
Fig. 3 is that the low temperature -40 of the utility model embodiment spends the mtf value schematic diagram under environment.
Fig. 4 is the mtf value schematic diagram under 105 degree of environment of high temperature of the utility model embodiment.
Fig. 5 is the defocusing curve schematic diagram of the utility model embodiment.
In figure:
Eyeglass eyeglass A, A1- bent moon negative lens A1, A2- double-concave negative lens A2, A3- biconvex positive lens A3 are organized before A-；
C- diaphragm C；
Eyeglass eyeglass B, B1- double-concave negative lens B1, B2- biconvex positive lens B2, B3- biconvex positive lens B3 is organized after B-.
Specific embodiment
In order to make the above-mentioned features and advantages of the utility model more obvious and understandable, special embodiment below, and cooperate attached drawing,
It is described in detail below.
As shown in Fig. 1 ~ 5, a kind of minisize vehicle-mounted optical system, including the preceding group of eyeglass set gradually from the object side to the image side
A, diaphragm C and rear group eyeglass B, organizing eyeglass A before described includes bent moon negative lens A1, double-concave negative lens A2 and biconvex positive lens
A3, organizing eyeglass B after described includes double-concave negative lens B1, biconvex positive lens B2 and biconvex positive lens B3, the double-concave negative lens
B1 and biconvex positive lens B2 contiguity is gluing unit；The design of the utility model structure is simple, reasonable, and overall length is shorter, structurally reasonable, full
Sufficient miniature requirement；Light passing amount is big, and relative illumination is high, and imaging picture brightness is high, and effect is good；Full glass designs, under high and low temperature environment
Normal imaging, high reliablity, A piece increase plating waterproof membrane and antifog film, meet outside mirror head waterproof anti-fog performance, reasonably select A piece
Material and A piece thickness, meet outside mirror head drop test, and optical sensitive degree is low, and assembly imaging yield is high, suitable for mass production.
In the utility model embodiment, the airspace between the bent moon negative lens A1 and double-concave negative lens A2 is
1.2mm；Airspace between the double-concave negative lens A2 and biconvex positive lens A3 is 0.5mm；The biconvex positive lens B2 with
Airspace between biconvex positive lens B3 is 0.1mm.
In the utility model embodiment, the airspace organized between eyeglass A and rear group eyeglass B before described is 1.3mm.
In the utility model embodiment, plate is provided between the biconvex positive lens B3 and the imaging surface IMA of camera lens
Optical filter.
The imaging method of the utility model comprising the steps of: light successively passes through bent moon negative lens A1, double-concave negative lens
It is imaged after A2, biconvex positive lens A3, double-concave negative lens B1, biconvex positive lens B2 and biconvex positive lens B3.
In the utility model embodiment, the specific optical index of the utility model are as follows:
(1) focal length: EFFL=2.8mm；
(2) number=1.8 F；
(3) field angle: 2w >=100 °；
(4) imaging circular diameter is greater than Ф 5；
(5) service band: visible light；
(6) it distorts: < -8%；
(7) optics overall length TTL≤16mm, optics rear cut-off distance >=5mm；
(8) camera lens is suitable for 3,000,000 pixel high-resolution CCD or cmos camera.
In the utility model embodiment, to meet on-vehicle lens small form factor requirements, overall length is limited, generally
For, in the case where overall length reduces, optical sensitive degree be will increase, this optical system reduces light by reducing spherical aberration, coma
Susceptibility is learned, producing feasibility is improved, to meet the antifog requirement of outside mirror head water proof and dust proof, A piece, which increases, plates waterproof membrane, antifog film,
Increase thickness, to meet the wider operating temperature range of on-vehicle lens, is designed using full glass, by mutually compensating between eyeglass,
Realize that optics, all can normal imaging under high and low temperature environment without thermalization.
In the utility model embodiment, the parameter of above-mentioned each eyeglass is as shown in the table:
For indicating the art of positional relationship or shape applied in above-mentioned any technical solution disclosed by the utility model
Its meaning includes approximate with its, similar or close state or shape to language unless otherwise stated.
Either component provided by the utility model by multiple individual component parts either assembled, or
The separate part that integrally formed technique manufactures.
Above embodiments are only to illustrate the technical solution of the utility model rather than its limitations；Although implementing referring to preferable
The utility model is described in detail in example, it should be understood by those ordinary skilled in the art that: still can be to this reality
It is modified with novel specific embodiment or some technical features can be equivalently replaced；Without departing from the utility model
The spirit of technical solution should all be covered within the scope of the technical scheme claimed by the utility model.
Claims (4)
1. a kind of minisize vehicle-mounted optical system, it is characterised in that: including set gradually from the object side to the image side preceding group of eyeglass A,
Diaphragm C and rear group eyeglass B, organizing eyeglass A before described includes bent moon negative lens A1, double-concave negative lens A2 and biconvex positive lens
A3, organizing eyeglass B after described includes double-concave negative lens B1, biconvex positive lens B2 and biconvex positive lens B3, the double-concave negative lens
B1 and biconvex positive lens B2 contiguity is gluing unit.
2. minisize vehicle-mounted optical system according to claim 1, it is characterised in that: the bent moon negative lens A1 and concave-concave
Airspace between negative lens A2 is 1.2mm；Airspace between the double-concave negative lens A2 and biconvex positive lens A3 is
0.5mm；Airspace between the biconvex positive lens B2 and biconvex positive lens B3 is 0.1mm.
3. minisize vehicle-mounted optical system according to claim 1, it is characterised in that: group eyeglass A and rear group mirror before described
Airspace between piece B is 1.3mm.
4. minisize vehicle-mounted optical system according to claim 1, it is characterised in that: the biconvex positive lens B3 and camera lens
Imaging surface IMA between be provided with plate optical filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822225432.9U CN209343022U (en) | 2018-12-28 | 2018-12-28 | Minisize vehicle-mounted optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822225432.9U CN209343022U (en) | 2018-12-28 | 2018-12-28 | Minisize vehicle-mounted optical system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209343022U true CN209343022U (en) | 2019-09-03 |
Family
ID=67759542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822225432.9U Active CN209343022U (en) | 2018-12-28 | 2018-12-28 | Minisize vehicle-mounted optical system |
Country Status (1)
| Country | Link |
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| CN (1) | CN209343022U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471245A (en) * | 2018-12-28 | 2019-03-15 | 福建福光天瞳光学有限公司 | Minisize vehicle-mounted optical system and imaging method |
| CN111352224A (en) * | 2019-11-22 | 2020-06-30 | 莆田学院 | Catadioptric panoramic imaging system and imaging method thereof |
-
2018
- 2018-12-28 CN CN201822225432.9U patent/CN209343022U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471245A (en) * | 2018-12-28 | 2019-03-15 | 福建福光天瞳光学有限公司 | Minisize vehicle-mounted optical system and imaging method |
| CN111352224A (en) * | 2019-11-22 | 2020-06-30 | 莆田学院 | Catadioptric panoramic imaging system and imaging method thereof |
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