CN201477270U - Optical lens - Google Patents
Optical lens Download PDFInfo
- Publication number
- CN201477270U CN201477270U CN2009201394344U CN200920139434U CN201477270U CN 201477270 U CN201477270 U CN 201477270U CN 2009201394344 U CN2009201394344 U CN 2009201394344U CN 200920139434 U CN200920139434 U CN 200920139434U CN 201477270 U CN201477270 U CN 201477270U
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- eyeglass
- minute surface
- side minute
- lens
- dome arc
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Abstract
The utility model relates to the field of optical lens, in particular to an optical lens with large image plane and low distortion. The optical lens comprises a fixed aperture slot and an optical glass group, wherein the optical glass group comprises eight optical glasses which are sequentially arranged, and beginning from the object direction, a first glass is bent toward a positive lens, a second glass and a third glass are bent toward a negative lens, a fourth lens is a convex lens, a fifth gluing glass and a sixth gluing glass are double concave and convex lens, and a seventh glass and an eighth glass are convex lens. By adopting the technical scheme, the optical lens which has large image plane and low distortion and is better and more reasonable is realized.
Description
Technical field
The utility model relates to field of optical lens, relates in particular to the optical lens of a kind of big image planes, low distortion.
Background technology
Distortion was big as existing short-focus mirror was first, image planes are less.As existing f3.5 camera lens, its distortion reaches 35%, image planes are 1/3 ".The optical lens that image planes are little is applied to video camera has the limit and monitoring range little, and in addition, distortion greatly can't the actual response image.There is publication number to be: to disclose the little distortion minisize optical lens of a kind of super wide-angle in 201138388 the Chinese patent file, be applied to monitor, the little distortion optical lens of vehicle-mounted miniature super wide-angle, it comprises lens barrel, in the cavity of lens barrel, be provided with first lens, diaphragm, second lens, the 3rd lens and the 4th lens and optical filter successively, described first lens are the non-spherical lens of curved month type, first of these first lens is sphere, and second is the hyperbolic curve face; Second lens are the drum type non-spherical lens, and first of these second lens is hyperbolic curve, and second is oval aspheric surface; The 3rd lens and the 4th lens combination are synthesized glyglass.Other has publication number to be: disclose a kind of auxiliary lens that expands the optical system field angle that is used to increase in 2867370 the Chinese patent file, at least form by two optical lenses, wherein, have at least one to be non-spherical lens in the lens, it is aspheric surface that described non-spherical lens has a face at least.Aspheric surface design by lens in the auxiliary lens has improved the shortcoming that the spherical lens that uses in the visual field expansion camera lens of prior art descends with the resolution of exterior domain in 0.25 visual field greatly; Distortion value can be a plus or minus according to the type of former imaging system distortion value in addition, takes compensation method to a certain degree to revise; Under the situation that does not change original optical system, reach the purpose of expansion field angle with the form of auxiliary lens; Particularly the utility model can make image quality better under the identical situation of field angle; Under the identical situation of image quality, field of view angle is increased.But the optical lens in these two kinds of technical schemes is still not ideal enough for the correction of distortion, and image planes are relatively little.
The utility model content
Therefore, the utility model proposes a kind of more excellent more rational short-focus mirror head, and be the optical lens of big image planes, low distortion.
The technical solution of the utility model is:
Optical lens of the present utility model comprises fixed aperture and optical mirror slip group.Wherein, described optical mirror slip group comprises and being arranged in order:
First eyeglass, for the left side minute surface is left dome arc surface, the right side minute surface is left dome arc surface, left side minute surface curvature of curved surface is greater than the positive lens of left side, right side minute surface curvature of curved surface;
Second eyeglass, for the left side minute surface is left dome arc surface, the right side minute surface is left dome arc surface, left side minute surface curvature of curved surface is less than the negative lens of left side, right side minute surface curvature of curved surface;
Prismatic glasses, for the left side minute surface is left dome arc surface, the right side minute surface is left dome arc surface, left side minute surface curvature of curved surface is less than the negative lens of left side, right side minute surface curvature of curved surface;
The 4th eyeglass, for the left side minute surface is left dome arc surface, the right side minute surface is the positive lens of right dome arc surface;
The 5th eyeglass, for the left side minute surface is right dome arc surface, the right side minute surface is the negative lens of left dome arc surface;
The 6th eyeglass, for the left side minute surface is left dome arc surface, the right side minute surface is the positive lens of right dome arc surface;
The 7th eyeglass, for the left side minute surface is the plane, the right side minute surface is the positive lens of right dome arc surface;
The 8th eyeglass, for the left side minute surface is left dome arc surface, the right side minute surface is the positive lens of right dome arc surface.
Further, the curvature of the left dome arc surface of the right side minute surface of described the 5th eyeglass is consistent with the curvature of the left dome arc surface of the left side minute surface of described the 6th eyeglass.
Further, described the 5th eyeglass and described the 6th eyeglass compose one.
Further, described fixed aperture comprises main tube, trim ring and spacer ring, described first eyeglass, second eyeglass, prismatic glasses, the 4th eyeglass, the 5th eyeglass, the 6th eyeglass, the 7th eyeglass, the 8th eyeglass are fixed in the main tube by spacer ring, and described trim ring is withheld first eyeglass and screwed and is fixed on the main tube.
Further, described spacer ring comprises:
First spacer ring is arranged between described first eyeglass and second eyeglass;
Second spacer ring is arranged between described prismatic glasses and the 4th eyeglass;
The 3rd spacer ring is arranged between described the 4th eyeglass and the 5th eyeglass;
The 4th spacer ring is arranged between described the 5th eyeglass and the 7th eyeglass;
The 5th spacer ring is arranged between described the 7th eyeglass and the 8th eyeglass.
The utility model adopts as above technical scheme, has realized a kind of big image planes, low distortion, more excellent more rational optical lens.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a light path principle figure of the present utility model.
Embodiment
Now with embodiment the utility model is further specified in conjunction with the accompanying drawings.
Consult shown in Figure 1ly, optical lens of the present utility model comprises fixed aperture and optical mirror slip group.Wherein, described optical mirror slip group comprises and being arranged in order:
The 4th eyeglass 14, for the left side minute surface is left dome arc surface, the right side minute surface is the positive lens of right dome arc surface;
The 5th eyeglass 15, for the left side minute surface is right dome arc surface, the right side minute surface is the negative lens of left dome arc surface;
The 6th eyeglass 16, for the left side minute surface is left dome arc surface, the right side minute surface is the positive lens of right dome arc surface;
The 7th eyeglass 17, for the left side minute surface is the plane, the right side minute surface is the positive lens of right dome arc surface;
The 8th eyeglass 18, for the left side minute surface is left dome arc surface, the right side minute surface is the positive lens of right dome arc surface.
The curvature of the left dome arc surface of the right side minute surface of described the 5th eyeglass 15 is consistent with the curvature of the left dome arc surface of the left side minute surface of described the 6th eyeglass 16.Described the 6th eyeglass 16 diameters are less than described the 5th eyeglass 15, and described the 5th eyeglass 15 composes one with described the 6th eyeglass 16.
Described fixed aperture comprises main tube 2, trim ring 3 and spacer ring 41～45, described first eyeglass 11, second eyeglass 12, prismatic glasses 13, the 4th eyeglass 14, the 5th eyeglass 15, the 6th eyeglass 16, the 7th eyeglass 17, the 8th eyeglass 18 are fixed in the main tube 2 by spacer ring 41～45, and described trim ring 3 is withheld first eyeglass 11 and screwed and is fixed on the main tube 2.Described spacer ring 41～45 comprises:
The 3rd spacer ring 43 is arranged between described the 4th eyeglass 14 and the 5th eyeglass 15;
The 4th spacer ring 44 is arranged between described the 5th eyeglass 15 and the 7th eyeglass 17;
The 5th spacer ring 45 is arranged between described the 7th eyeglass 17 and the 8th eyeglass 18.
Consult shown in Figure 2, the light path principle of optical lens of the present utility model is: first eyeglass 11 has larger-diameter positive lens, light is inwardly reflected by first eyeglass, 11 backs enters second eyeglass 12, second eyeglass 12 is the relatively littler negative lenses of diameter, optics is outwards entered prismatic glasses 13 after the refraction, prismatic glasses 13 also is a negative lens, optics is outwards entered the 4th eyeglass 14 after the refraction, the 4th eyeglass 14 is that positive lens optics is inwardly entered the 5th eyeglass 15 and the 6th eyeglass 16 that composes one after the refraction, light is outwards entered the 7th eyeglass 17 and the 8th eyeglass 18 after the refraction amplification once again successively, at this moment, light inwardly is adjusted into parallel outgoing.Therefore can realize the light path of big image planes, low distortion.
Adopt the advantage of optical lens of the present utility model to be:
1. existing camera lens image planes are less, are generally 1/3 ", image planes of the present utility model are 1/2.5 ", the requirement of the element sensor behind the camera lens is low relatively, and selectivity is wider.
2. existing short-focus mirror head distortion more greatly 35%, the utility model is 2.2%, but the actual response image.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; but the those skilled in the art should be understood that; in the spirit and scope of the present utility model that do not break away from appended claims and limited; can make various variations to the utility model in the form and details, be protection domain of the present utility model.
Claims (5)
1. an optical lens comprises fixed aperture and optical mirror slip group, it is characterized in that: described optical mirror slip group comprises and being arranged in order:
First eyeglass (11), for the left side minute surface is left dome arc surface, the right side minute surface is left dome arc surface, left side minute surface curvature of curved surface is greater than the positive lens of left side, right side minute surface curvature of curved surface;
Second eyeglass (12), for the left side minute surface is left dome arc surface, the right side minute surface is left dome arc surface, left side minute surface curvature of curved surface is less than the negative lens of left side, right side minute surface curvature of curved surface;
Prismatic glasses (13), for the left side minute surface is left dome arc surface, the right side minute surface is left dome arc surface, left side minute surface curvature of curved surface is less than the negative lens of left side, right side minute surface curvature of curved surface;
The 4th eyeglass (14), for the left side minute surface is left dome arc surface, the right side minute surface is the positive lens of right dome arc surface;
The 5th eyeglass (15), for the left side minute surface is right dome arc surface, the right side minute surface is the negative lens of left dome arc surface;
The 6th eyeglass (16), for the left side minute surface is left dome arc surface, the right side minute surface is the positive lens of right dome arc surface;
The 7th eyeglass (17), for the left side minute surface is the plane, the right side minute surface is the positive lens of right dome arc surface;
The 8th eyeglass (18), for the left side minute surface is left dome arc surface, the right side minute surface is the positive lens of right dome arc surface.
2. optical lens according to claim 1 is characterized in that: the curvature of the left dome arc surface of the right side minute surface of described the 5th eyeglass (15) is consistent with the curvature of the left dome arc surface of the left side minute surface of described the 6th eyeglass (16).
3. optical lens according to claim 2 is characterized in that: described the 5th eyeglass (15) composes one with described the 6th eyeglass (16).
4. according to claim 1 or 2 or 3 described optical lens, it is characterized in that: described fixed aperture comprises main tube (2), trim ring (3) and spacer ring (41～45), described first eyeglass (11), second eyeglass (12), prismatic glasses (13), the 4th eyeglass (14), the 5th eyeglass (15), the 6th eyeglass (16), the 7th eyeglass (17), the 8th eyeglass (18) are fixed in the main tube (2) by spacer ring (41～45), and described trim ring (3) is withheld first eyeglass (11) and screwed and is fixed on the main tube (2).
5. optical lens according to claim 4 is characterized in that: described spacer ring (41～45) comprising:
First spacer ring (41) is arranged between described first eyeglass (11) and second eyeglass (12);
Second spacer ring (42) is arranged between described prismatic glasses (13) and the 4th eyeglass (14);
The 3rd spacer ring (43) is arranged between described the 4th eyeglass (14) and the 5th eyeglass (15);
The 4th spacer ring (44) is arranged between described the 5th eyeglass (15) and the 7th eyeglass (17);
The 5th spacer ring (45) is arranged between described the 7th eyeglass (17) and the 8th eyeglass (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201394344U CN201477270U (en) | 2009-07-13 | 2009-07-13 | Optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201394344U CN201477270U (en) | 2009-07-13 | 2009-07-13 | Optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201477270U true CN201477270U (en) | 2010-05-19 |
Family
ID=42413522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201394344U Expired - Fee Related CN201477270U (en) | 2009-07-13 | 2009-07-13 | Optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201477270U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272167A (en) * | 2017-08-16 | 2017-10-20 | 广东北创光电科技股份有限公司 | Focal length is 12mm optical mirror slip |
| CN107367826A (en) * | 2017-08-18 | 2017-11-21 | 广东北创光电科技股份有限公司 | Focal length is 35mm optical lens |
| CN108287402A (en) * | 2018-03-27 | 2018-07-17 | 视科光电科技（深圳）有限公司 | Camera lens module and 3D printer |
| CN112748515A (en) * | 2019-10-30 | 2021-05-04 | 深圳市安华光电技术有限公司 | Lens combination of camera lens, camera lens and 3D printing device |
| CN112748516A (en) * | 2019-10-30 | 2021-05-04 | 深圳市安华光电技术有限公司 | Lens combination of camera lens, camera lens and 3D printing device |
-
2009
- 2009-07-13 CN CN2009201394344U patent/CN201477270U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272167A (en) * | 2017-08-16 | 2017-10-20 | 广东北创光电科技股份有限公司 | Focal length is 12mm optical mirror slip |
| CN107272167B (en) * | 2017-08-16 | 2023-03-24 | 广东北创光电科技股份有限公司 | Optical lens with focal length of 12mm |
| CN107367826A (en) * | 2017-08-18 | 2017-11-21 | 广东北创光电科技股份有限公司 | Focal length is 35mm optical lens |
| CN107367826B (en) * | 2017-08-18 | 2023-03-24 | 广东北创光电科技股份有限公司 | Optical lens with 35mm focal length |
| CN108287402A (en) * | 2018-03-27 | 2018-07-17 | 视科光电科技（深圳）有限公司 | Camera lens module and 3D printer |
| CN108287402B (en) * | 2018-03-27 | 2024-04-19 | 视科光电科技（深圳）有限公司 | Lens module and 3D printer |
| CN112748515A (en) * | 2019-10-30 | 2021-05-04 | 深圳市安华光电技术有限公司 | Lens combination of camera lens, camera lens and 3D printing device |
| CN112748516A (en) * | 2019-10-30 | 2021-05-04 | 深圳市安华光电技术有限公司 | Lens combination of camera lens, camera lens and 3D printing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20130713 |