CN202372693U - High-magnifying power continuous zooming visible light imaging device - Google Patents
High-magnifying power continuous zooming visible light imaging device Download PDFInfo
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- CN202372693U CN202372693U CN2011204439096U CN201120443909U CN202372693U CN 202372693 U CN202372693 U CN 202372693U CN 2011204439096 U CN2011204439096 U CN 2011204439096U CN 201120443909 U CN201120443909 U CN 201120443909U CN 202372693 U CN202372693 U CN 202372693U
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Abstract
The utility model belongs to the field of optical monitoring, particularly relates to a high-magnifying power continuous zooming visible light imaging device with the magnifying power of 60 times and the long focal length of 780mm, and is applied to the technical field of remote monitoring. The device comprises a first lens assembly with a positive diopter, a second lens assembly with a negative diopter, a third lens assembly with a positive diopter and a fourth lens assembly with a positive diopter sequentially from an object space to an image space, wherein the positions of the first and fourth lens assemblies are fixed; the second and third lens assemblies for zooming are movable; the focal length of the whole lens is changed by moving the second lens assembly; and image surface movement caused by the zooming is compensated by moving the third lens assembly, so that the position of an image surface is kept fixed all the time. The device is simple in structure, low in cost and high in reliability.
Description
Technical field
The utility model belongs to the optical monitoring field, is specifically related to a kind ofly have that 60 times of focal lengths amplify and long focal length reaches the zoom visual light imaging device of 780mm, is applicable to the remote monitor technical field.
Background technology
The product of present domestic monitoring field, especially remote monitor supervision area mainly is to be controlled by the import market, and the general transmitance of domestic Related product is not high, and volume ratio is bigger, and profile is heavy, and cost is higher, compares lacking of market competition ability with the import camera lens.The utility model adopts home made materials design exactly, and is relatively simple for structure, a kind of utility model patent that system's length overall and relative aperture are rational, each item imaging index meets the demands.
Former US 20060018035A1 patent also is to describe a kind of similar optics patent in the left and right sides with 60 times, and version is similar, selects for use and just organizes compensation, selects the refracting set of just organizing for use for first group; Second group of refracting set of selecting negative group for use; Select for use for the 3rd group and just organize refracting set; Select for use for the 4th group and just organize refracting set; Second group of refracting set and the 3rd group of refracting set in the varifocal process with the certain rule relative motion, but because the limitation of domestic glass material, produce and be difficult to experiment; And it is complicated that the relative this patent of structure shows slightly, and it is also undesirable to pass letter, picture element etc.
Summary of the invention
In order to overcome the shortcoming of prior art, the utility model provides a kind of large-multiplying power continuous zooming visual light imaging device, and it is simple in structure, and cost is low, and reliability is high.
The technical scheme that its technical matters of the utility model solution is taked is: comprise first lens combination of positive diopter, negative dioptric second lens combination, the 3rd lens combination of positive diopter and the 4th lens combination of positive diopter successively to picture side from object space; Wherein first lens combination and the 4th lens combination stationkeeping; Second lens combination and the 3rd lens combination that are used for zoom are removable; Move the focal length variations that second lens combination makes whole camera lens; Move the 3rd lens combination and cause image planes to move after to zoom to compensate, the position of imaging surface is remained immobilize.
That the utility model adopts is positive and negative, just, positive four lens group structures; And make the stationkeeping of first lens combination and the 4th lens combination and image planes constant; Through moving the focal length variations that second lens combination makes whole camera lens; Move and cause image planes to move after the 3rd lens combination compensates zoom, it is clear to guarantee to form images.Whole continuous magnification lens becomes multiple proportions and reaches 60 times, and material is general, and lens construction is simple, has not only reduced cost, has improved reliability, and excellent optical performance.Therefore, the zoom lens of the utility model meets the requirement of scale of mass production, has good market outlook.Owing to be spherical mirror, there is not aspheric mirror, be prone to processing and manufacturing, cost is low.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the main composition diagram of the utility model optical system;
Fig. 2 is the face type sequence number synoptic diagram of the utility model optical system;
Fig. 3 .1 is the utility model shortest focal length optical schematic diagram;
Fig. 3 .2 is the utility model middle focal length optical schematic diagram;
Fig. 3 .3 is the utility model longest focal length optical schematic diagram;
Fig. 4 .1 is the shortest burnt position MTF figure of the utility model;
Fig. 4 .2 is the utility model middle focal length position MTF figure;
Fig. 4 .3 is the longest burnt position MTF figure of the utility model.
Embodiment
Fig. 1: G1 is made up of 3 eyeglasses, L11, L12, L13; G2 is made up of 3 eyeglasses, L21, L22, L23; G3 is made up of 3 eyeglasses, L31, L32, L33; G4 is made up of 5 eyeglasses, L41, L42, L43, L44, L45, and L42, L43 are combined as the gummed mirror, and img is the imaging target surface.
Fig. 2: G1 comprises face type sequence number 1,2,3,4,5; G2 comprises face type sequence number 6,7,8,9,10; G3 comprises face type sequence number 11,12,13,14,15; G4 comprises face type sequence number 17,18,19,20,21,22,23,24; Face type sequence number sto (diaphragm) is between G3, G4, and it is last that face type sequence number img is positioned at system.
Comprise the first lens combination G1 of positive diopter, the negative dioptric second lens combination G2, the 3rd lens combination G3 of positive diopter and the 4th lens combination G4 of positive diopter successively to picture side from object space; The wherein first lens combination G1 and the 4th lens combination G4 stationkeeping; The second lens combination G2 and the 3rd lens combination G3 that are used for zoom are removable; Move the focal length variations that the second lens combination G2 makes whole camera lens; Move the 3rd lens combination G3 and cause image planes to move after to zoom to compensate, the position of imaging surface is remained immobilize.
The described first lens combination G1 is made up of three eyeglass L11, L12, L13, and wherein left side two eyeglass L11, L12 are combined as the gummed mirror; The second lens combination G2 is made up of three eyeglass L21, L22, L23, and wherein right side two eyeglass L22, L23 are combined as the gummed mirror; The 3rd lens combination G3 is made up of three eyeglass L31, L32, L33, and wherein right side two eyeglass L32, L33 are combined as the gummed mirror; The 4th lens combination G4 is made up of five eyeglass L41, L42, L43, L44, L45, and wherein middle two eyeglass L42, L43 are combined as the gummed mirror, and right side two eyeglass L44, L45 are combined as the gummed mirror.
The optical design parameter of said first, second, third and fourth lens combination G1, G2, G3, G4 is following:
| Face type sequence number | Radius-of-curvature | The face type at |
| 1 | 237.47000 | 4.200000 |
| 2 | 93.05000 | 17.950000 |
| 3 | -1319.97000 | 0.100000 |
| 4 | 90.76000 | 13.630000 |
| 5 | 351.00000 | D5 |
| 6 | -190.11000 | 1.820000 |
| 7 | 29.43000 | 5.760000 |
| 8 | -38.04000 | 9.130000 |
| 9 | -15.03100 | 1.800000 |
| 10 | -338.76800 | |
| 11 | 169.91000 | 5.530000 |
| 12 | -74.33000 | 0.140000 |
| 13 | 50.00000 | 1.800000 |
| 14 | 28.66500 | 8.100000 |
| 15 | -718.00000 | D15 |
| STO | INFINITY | 4.000000 |
| 17 | -36.14000 | 1.800000 |
| 18 | -100.69100 | 0.100000 |
| 19 | 21.14000 | 1.920000 |
| 20 | 11.48000 | 8.970000 |
| 21 | -102.10000 | 0.930000 |
| 22 | 55.19000 | 2.810000 |
| 23 | 8.39000 | 3.780000 |
| 24 | 14.45200 | 6.000000 |
| 25 | INFINITY | 40.562698 |
| IMG | INFINITY | 0.000000 |
Second and third lens combination G2, G3 be according to moving in the middle of two side direction, reaches minimum distance during long burnt position.Short burnt D5, D15 are the shortest, and D10 is the longest; Long burnt D5, D15 are the longest, and D10 is the shortest.
| Focal length | D5 | D10 | D15 |
| 12.82 | 5.97 | 205.65 | 2.32 |
| 125.87 | 112.01 | 75.87 | 26.06 |
| 771.00 | 137.5 | 9.20 | 67.24 |
The satisfied following formula of said first, second, third and fourth lens combination G1, G2, G3, G4:
0.23#f1/ft 0.27
-0.50#f2/f3?-0.45
F1, f2, f3 are respectively the focal length values of first, second and third lens combination G1, G2, G3 in the formula; Ft is the longest burnt focal length value.
The satisfied following formula of said first, second, third and fourth lens combination G1, G2, G3, G4:
n1￡1.53
80￡v1
N1 has the L12 of positive lens characteristic and the arithmetic mean of L13 refractive index number in the formula among the first lens combination G1; V1 has the L12 of positive lens characteristic and the arithmetic mean of L13 abbe number among the first lens combination G1.
The material of described first, second, third and fourth lens combination G1, G2, G3, G4 is H-FK61, ZBAF20, LAF3, ZF6, ZF4, ZK14, ZF11, K9 or ZBAF8.
Claims (5)
1. large-multiplying power continuous zooming visual light imaging device; Comprise first lens combination (G1) of positive diopter, negative dioptric second lens combination (G2), the 3rd lens combination (G3) of positive diopter and the 4th lens combination (G4) of positive diopter successively to picture side from object space; Wherein first lens combination (G1) and the 4th lens combination (G4) stationkeeping; Second lens combination (G2) and the 3rd lens combination (G3) that are used for zoom are removable; Move the focal length variations that second lens combination (G2) makes whole camera lens, move the 3rd lens combination (G3) and compensate, the position of imaging surface is remained immobilize causing image planes to move behind the zoom.
2. large-multiplying power continuous zooming visual light imaging device according to claim 1 is characterized in that: first lens combination (G1) is made up of three eyeglasses (L11, L12, L13), and wherein two eyeglasses in left side (L11, L12) are combined as the gummed mirror; Second lens combination (G2) is made up of three eyeglasses (L21, L22, L23), and wherein two eyeglasses in right side (L22, L23) are combined as the gummed mirror; The 3rd lens combination (G3) is made up of three eyeglasses (L31, L32, L33), and wherein two eyeglasses in right side (L32, L33) are combined as the gummed mirror; The 4th lens combination (G4) is made up of five eyeglasses (L41, L42, L43, L44, L45), and wherein second and the 3rd eyeglass (L42, L43) are combined as the gummed mirror, and the rightmost side two eyeglasses (L44, L45) is combined as the gummed mirror.
3. large-multiplying power continuous zooming visual light imaging device according to claim 1 and 2 is characterized in that: the optical design parameter of said first, second, third and fourth lens combination (G1, G2, G3, G4) is following:
Second and third lens combination G2, G3 be according to moving in the middle of two side direction, reaches minimum distance during long burnt position, and short burnt D5, D15 are the shortest, and D10 is the longest; Long burnt D5, D15 are the longest, and D10 is the shortest.
4. large-multiplying power continuous zooming visual light imaging device according to claim 1 and 2 is characterized in that: the satisfied following formula of said first, second, third and fourth lens combination (G1, G2, G3, G4):
n1￡1.53
80￡v1
N1 has the L12 of positive lens characteristic and the arithmetic mean of L13 refractive index number in the formula in first lens combination (G1); V1 has the L12 of positive lens characteristic and the arithmetic mean of L13 abbe number in first lens combination (G1).
5. large-multiplying power continuous zooming visual light imaging device according to claim 1 and 2 is characterized in that: the material of first, second, third and fourth lens combination (G1, G2, G3, G4) is H-FK61, ZBAF20, LAF3, ZF6, ZF4, ZK14, ZF11, K9 or ZBAF8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204439096U CN202372693U (en) | 2011-11-10 | 2011-11-10 | High-magnifying power continuous zooming visible light imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204439096U CN202372693U (en) | 2011-11-10 | 2011-11-10 | High-magnifying power continuous zooming visible light imaging device |
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| Publication Number | Publication Date |
|---|---|
| CN202372693U true CN202372693U (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204439096U Expired - Fee Related CN202372693U (en) | 2011-11-10 | 2011-11-10 | High-magnifying power continuous zooming visible light imaging device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093508A (en) * | 2015-07-24 | 2015-11-25 | 北京理工大学 | Variable-focus optical receiving antenna used for mobile visible light communication |
| CN105258558A (en) * | 2015-12-01 | 2016-01-20 | 河北汉光重工有限责任公司 | Calibrating device for sighting telescope used for infrared gun |
| CN106199932A (en) * | 2016-08-29 | 2016-12-07 | 中国科学院长春光学精密机械与物理研究所 | A kind of zoom lens |
| CN113406779A (en) * | 2020-03-16 | 2021-09-17 | 华为技术有限公司 | Zoom lens, camera module and mobile terminal |
-
2011
- 2011-11-10 CN CN2011204439096U patent/CN202372693U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093508A (en) * | 2015-07-24 | 2015-11-25 | 北京理工大学 | Variable-focus optical receiving antenna used for mobile visible light communication |
| CN105258558A (en) * | 2015-12-01 | 2016-01-20 | 河北汉光重工有限责任公司 | Calibrating device for sighting telescope used for infrared gun |
| CN106199932A (en) * | 2016-08-29 | 2016-12-07 | 中国科学院长春光学精密机械与物理研究所 | A kind of zoom lens |
| CN106199932B (en) * | 2016-08-29 | 2019-11-26 | 中国科学院长春光学精密机械与物理研究所 | A kind of zoom lens |
| CN113406779A (en) * | 2020-03-16 | 2021-09-17 | 华为技术有限公司 | Zoom lens, camera module and mobile terminal |
| WO2021185185A1 (en) * | 2020-03-16 | 2021-09-23 | 华为技术有限公司 | Zoom lens, camera module and mobile terminal |
| CN113544565A (en) * | 2020-03-16 | 2021-10-22 | 华为技术有限公司 | Zoom lens, camera module and mobile terminal |
| CN113544565B (en) * | 2020-03-16 | 2022-05-24 | 华为技术有限公司 | Zoom lens, camera module and mobile terminal |
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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: 20120808 Termination date: 20181110 |