CN102681161B - Small imaging optical system with long focal length and high image quality - Google Patents
Small imaging optical system with long focal length and high image quality Download PDFInfo
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- CN102681161B CN102681161B CN201210166516.4A CN201210166516A CN102681161B CN 102681161 B CN102681161 B CN 102681161B CN 201210166516 A CN201210166516 A CN 201210166516A CN 102681161 B CN102681161 B CN 102681161B
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Abstract
The invention discloses a small imaging optical system with long focal length and high image quality, and relates to an imaging optical system. The purpose of the invention is to solve the problems that the occupied space is large and the realization of related photoelectric detection purposes is limited when the current optical system realizes the long focal length. In the small imaging optical system, a fifth spherical lens (5), a sixth spherical lens (6) and a seventh spherical lens (7) are sequentially arranged from left to right; a first spherical lens (1), a second spherical lens (2), a third spherical lens (3) and a fourth spherical lens (4) are sequentially arranged from left to right; an eighth spherical lens (8), a ninth spherical lens (9), a tenth spherical lens (10) and an eleventh spherical lens (11) are sequentially arranged from left to right; and all the spherical lens are spherical lens made of zinc selenide crystal materials. The small imaging optical system is particularly suitable for vehicle-mounted, airborne or spaceborne spaces to use.
Description
Technical field
The present invention relates to a kind of imaging optical system, be specifically related to the burnt high picture element imaging optical system of a kind of small-sized length.
Background technology
Some Photodetection systems, are limited by detection viewing field and detector size, need imaging system to have long-focus.But when existing optical system realizes long-focus, its space occupying is larger, has limited the realization of relevant photodetection object.
Summary of the invention
The object of the invention is in order to solve existing optical system and to realize long-focus, its space occupying is large, has limited the problem that relevant photodetection object realizes, and then provides a kind of small-sized length burnt high picture element imaging optical system.
Technical scheme of the present invention is: the burnt high picture element imaging optical system of a kind of small-sized length comprises telescopic ocular mirror group, telescopic ocular mirror group comprises the 5th spherical lens, the 6th spherical lens and the 7th spherical lens, the 5th spherical lens, the 6th spherical lens and the 7th spherical lens are set up in parallel from left to right successively, described imaging optical system also comprises telephotolens mirror group, telephoto objective mirror group and detector, telescopic ocular mirror group is arranged between telephotolens mirror group and telephoto objective mirror group, the diameter of detector is 5mm, detector is arranged on the rear of telephoto objective mirror group, telescopic ocular mirror group, telephotolens mirror group, the center of telephoto objective mirror group and detector is all on same straight line, spacing between the 5th spherical lens and the 6th spherical lens is 0.5mm, spacing between the 6th spherical lens and the 7th spherical lens is 10mm, telephotolens mirror group comprises the first spherical lens, the second spherical lens, the 3rd spherical lens and the 4th spherical lens, the first spherical lens, the second spherical lens, the 3rd spherical lens and the 4th spherical lens are set up in parallel from left to right successively, spacing between the first spherical lens and the second spherical lens is 3mm, spacing between the second spherical lens and the 3rd spherical lens is 3mm, spacing between the 3rd spherical lens and the 4th spherical lens is 6mm, spacing between the 4th spherical lens and the 5th spherical lens is 73mm, telephoto objective mirror group comprises the 8th spherical lens, the 9th spherical lens, the tenth spherical lens and the 11 spherical lens, the 8th spherical lens, the 9th spherical lens, the tenth spherical lens and the 11 spherical lens are set up in parallel from left to right successively, spacing between the 7th spherical lens and the 8th spherical lens is 0.8mm, spacing between the 8th spherical lens and the 9th spherical lens is 2mm, spacing between the 9th spherical lens and the tenth spherical lens is 40.2mm, spacing between the tenth spherical lens and the 11 spherical lens is 2mm, described the first spherical lens to the 11 spherical lenses are made by zinc selenide crystal material, the focal length of described imaging optical system is 2900mm, Receiver aperture is 60mm, field angle is 0.1 degree, length 260mm, using wavelength is 1.064 μ m.
The present invention compared with prior art has following effect: 1. focal length of the present invention is 2900mm, and Receiver aperture is 60mm, and field angle is 0.1 degree, the diameter of detector is 5mm, system length 260mm, and using wavelength is 1.064 μ m, take up space little, image quality has reached diffraction limit.According to current technological level, the transmitance of system can reach more than 95%.The present invention has realized the imaging optical system that integrates small-sized, long Jiao and high imaging quality.2. telescopic system of the present invention (the telescopic system here refers to the general name of telescopic ocular mirror group and telephotolens mirror group) is comprised of seven spherical lenses, enlargement ratio is 6 times, its function is that object space detection viewing field is amplified, thereby makes focal length that telephoto objective is born be down to the sixth of the total focal length of system.Telephoto objective mirror group is comprised of four spherical lenses, and by the focal length of selecting appropriate initial configuration that its system length is born much smaller than it, image quality is high.3. lens of the present invention all adopt spherical surface type, easily realize, and can reach higher machining precision in engineering, and processing cost is low, is convenient to promote the use of on a large scale.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1, the burnt high picture element imaging optical system of a kind of small-sized length of present embodiment comprises telescopic ocular mirror group, telescopic ocular mirror group comprises the 5th spherical lens 5, the 6th spherical lens 6 and the 7th spherical lens 7, the 5th spherical lens 5, the 6th spherical lens 6 and the 7th spherical lens 7 are set up in parallel from left to right successively, described imaging optical system also comprises telephotolens mirror group, telephoto objective mirror group and detector 12, telescopic ocular mirror group is arranged between telephotolens mirror group and telephoto objective mirror group, the diameter of detector 12 is 5mm, detector 12 is arranged on the rear of telephoto objective mirror group, telescopic ocular mirror group, telephotolens mirror group, telephoto objective mirror group and detector 12 center are all on same straight line, spacing between the 5th spherical lens 5 and the 6th spherical lens 6 is 0.5mm, spacing between the 6th spherical lens 6 and the 7th spherical lens 7 is 10mm, telephotolens mirror group comprises the first spherical lens 1, the second spherical lens 2, the 3rd spherical lens 3 and the 4th spherical lens 4, the first spherical lens 1, the second spherical lens 2, the 3rd spherical lens 3 and the 4th spherical lens 4 are set up in parallel from left to right successively, spacing between the first spherical lens 1 and the second spherical lens 2 is 3mm, spacing between the second spherical lens 2 and the 3rd spherical lens 3 is 3mm, spacing between the 3rd spherical lens 3 and the 4th spherical lens 4 is 6mm, spacing between the 4th spherical lens 4 and the 5th spherical lens 5 is 73mm, telephoto objective mirror group comprises the 8th spherical lens 8, the 9th spherical lens 9, the tenth spherical lens 10 and the 11 spherical lens 11, the 8th spherical lens 8, the 9th spherical lens 9, the tenth spherical lens 10 and the 11 spherical lens 11 are set up in parallel from left to right successively, spacing between the 7th spherical lens 7 and the 8th spherical lens 8 is 0.8mm, spacing between the 8th spherical lens 8 and the 9th spherical lens 9 is 2mm, spacing between the 9th spherical lens 9 and the tenth spherical lens 10 is 40.2mm, spacing between the tenth spherical lens 10 and the 11 spherical lens 11 is 2mm, described the first spherical lens 1 to the 11 spherical lens 11 is made by zinc selenide crystal material, the focal length of described imaging optical system is 2900mm, Receiver aperture is 60mm, field angle is 0.1 degree, length 260mm, using wavelength is 1.064 μ m.
Present embodiment in use, is arranged on the telephotolens mirror group of looking in the distance, eyepiece mirror group, telephoto objective mirror group and detector 12 in the housing of photoelectric detection equipment.
Embodiment two: in conjunction with Fig. 1, present embodiment is described, the spherical lens bore of the 5th spherical lens 5, the 6th spherical lens 6 and the 7th spherical lens 7 in the telescopic ocular mirror group of present embodiment is respectively 12mm, 11mm and 11mm.So arrange, can make whole system there is no vignetting, guarantee making full use of of luminous energy.Other composition and annexation are identical with embodiment one.
Embodiment three: in conjunction with Fig. 1, present embodiment is described, the spherical lens thickness of the 5th spherical lens 5, the 6th spherical lens 6 and the 7th spherical lens 7 in the telescopic ocular mirror group of present embodiment is respectively 2mm, 2mm and 3mm.So arrange, realize the focal length of system, eliminate the aberration of system, guarantee image quality, convenient actual processing, guarantees machining precision and result of use.Other composition and annexation are identical with embodiment one or two.
Embodiment four: in conjunction with Fig. 1, present embodiment is described, the spherical radius of the 5th spherical lens 5, the 6th spherical lens 6 and the 7th spherical lens 7 in the telescopic ocular mirror group of present embodiment is respectively 247.626mm ,-440.705mm; 145.995mm, 27.489mm; 73.233mm, 158.484mm.So arrange, can guarantee the focal length of system, eliminate the aberration of system simultaneously, guarantee image quality.Other composition and annexation are identical with embodiment one, two or three.
Embodiment five: in conjunction with Fig. 1, present embodiment is described, the spherical lens bore of the first spherical lens 1, the second spherical lens 2, the 3rd spherical lens 3 and the 4th spherical lens 4 of the telephotolens mirror group of present embodiment is respectively 60mm, 56mm, 50mm and 40mm.So arrange, can make whole system there is no vignetting, guarantee making full use of of luminous energy.Other composition and annexation are identical with embodiment one or four.
Embodiment six: in conjunction with Fig. 1, present embodiment is described, the spherical lens thickness of the first spherical lens 1, the second spherical lens 2, the 3rd spherical lens 3 and the 4th spherical lens 4 of the telephotolens mirror group of present embodiment is 8mm.So arrange, realize the focal length of system, eliminate the aberration of system, guarantee image quality, convenient actual processing, guarantees machining precision and result of use.Other composition and annexation are identical with embodiment one or five.
Embodiment seven: in conjunction with Fig. 1, present embodiment is described, the spherical radius of the first spherical lens 1, the second spherical lens 2, the 3rd spherical lens 3 and the 4th spherical lens 4 of the telephotolens mirror group of present embodiment is respectively 110.99mm, 3884.975mm;-352.941mm ,-505.768mm; 56.365mm, 56.187mm; 194.711mm, 61.780mm.So arrange, can guarantee the focal length of system, eliminate the aberration of system simultaneously, guarantee image quality.Other composition and annexation are identical with embodiment one, five or six.
Embodiment eight: in conjunction with Fig. 1, present embodiment is described, the spherical lens bore of the 8th spherical lens 8, the 9th spherical lens 9, the tenth spherical lens 10 and the 11 spherical lens 11 of the telephoto objective mirror group of present embodiment is respectively 11mm, 10mm, 3mm and 3mm.So arrange, can make whole system there is no vignetting, guarantee making full use of of luminous energy.Other composition and annexation are identical with embodiment seven.
Embodiment nine: in conjunction with Fig. 1, present embodiment is described, the spherical lens thickness of the 8th spherical lens 8, the 9th spherical lens 9 and the tenth spherical lens 10 of the telephoto objective mirror group of present embodiment is respectively 3mm, 3mm and 2mm.So arrange, realize the focal length of system, eliminate the aberration of system, guarantee image quality, convenient actual processing, guarantees machining precision and result of use.Other composition and annexation are identical with embodiment one, five or eight.
Embodiment ten: present embodiment is described in conjunction with Fig. 1, the spherical radius of the 8th spherical lens 8, the 9th spherical lens 9, the tenth spherical lens 10 and the 11 spherical lens 11 of the telephoto objective mirror group of present embodiment is respectively 92.400mm, 2203.038mm;-559.161mm, 159.228mm; 36.699mm, 17.979mm; 41.691mm, 20.269mm.So arrange, can guarantee the focal length of system, eliminate the aberration of system simultaneously, guarantee image quality.Other composition and annexation are identical with embodiment nine.
Principle of work of the present invention is:
The present invention receives for the imaging signal of space photoelectricity imaging detection purposes, the imaging signal with certain visual angle enters system from the first spherical lens 1, then, successively through the second spherical lens 2, the 3rd spherical lens 3, the 4th spherical lens 4, the 5th spherical lens 5, the 6th spherical lens 6, the 7th spherical lens 7, the 8th spherical lens 8, the 9th spherical lens 9, the tenth spherical lens 10 and the 11 spherical lens 11, finally on detector 12, become the target picture adapting with detector size, realize relevant detection object.
Claims (4)
1. the burnt high picture element imaging optical system of small-sized length, it comprises telescopic ocular mirror group, telescopic ocular mirror group comprises the 5th spherical lens (5), the 6th spherical lens (6) and the 7th spherical lens (7), the 5th spherical lens (5), the 6th spherical lens (6) and the 7th spherical lens (7) are set up in parallel from left to right successively, it is characterized in that: described imaging optical system also comprises telephotolens mirror group, telephoto objective mirror group and detector (12), telescopic ocular mirror group is arranged between telephotolens mirror group and telephoto objective mirror group, the diameter of detector (12) is 5mm, detector (12) is arranged on the rear of telephoto objective mirror group, telescopic ocular mirror group, telephotolens mirror group, the center of telephoto objective mirror group and detector (12) is all on same straight line, spacing between the 5th spherical lens (5) and the 6th spherical lens (6) is 0.5mm, spacing between the 6th spherical lens (6) and the 7th spherical lens (7) is 10mm, telephotolens mirror group comprises the first spherical lens (1), the second spherical lens (2), the 3rd spherical lens (3) and the 4th spherical lens (4), the first spherical lens (1), the second spherical lens (2), the 3rd spherical lens (3) and the 4th spherical lens (4) are set up in parallel from left to right successively, spacing between the first spherical lens (1) and the second spherical lens (2) is 3mm, spacing between the second spherical lens (2) and the 3rd spherical lens (3) is 3mm, spacing between the 3rd spherical lens (3) and the 4th spherical lens (4) is 6mm, spacing between the 4th spherical lens (4) and the 5th spherical lens (5) is 73mm, telephoto objective mirror group comprises the 8th spherical lens (8), the 9th spherical lens (9), the tenth spherical lens (10) and the 11 spherical lens (11), the 8th spherical lens (8), the 9th spherical lens (9), the tenth spherical lens (10) and the 11 spherical lens (11) are set up in parallel from left to right successively, spacing between the 7th spherical lens (7) and the 8th spherical lens (8) is 0.8mm, spacing between the 8th spherical lens (8) and the 9th spherical lens (9) is 2mm, spacing between the 9th spherical lens (9) and the tenth spherical lens (10) is 40.2mm, spacing between the tenth spherical lens (10) and the 11 spherical lens (11) is 2mm, described the first spherical lens (1) to the 11 spherical lens (11) is made by zinc selenide crystal material, the focal length of described imaging optical system is 2900mm, Receiver aperture is 60mm, field angle is 0.1 degree, length 260mm, using wavelength is 1.064 μ m,
The spherical lens thickness of the 5th spherical lens (5) in described telescopic ocular mirror group, the 6th spherical lens (6) and the 7th spherical lens (7) is respectively 2mm, 2mm and 3mm;
The spherical radius of the 5th spherical lens (5) in described telescopic ocular mirror group, the 6th spherical lens (6) and the 7th spherical lens (7) is respectively 247.626mm ,-440.705mm; 145.995mm, 27.489mm; 73.233mm, 158.484mm;
The spherical lens thickness of first spherical lens (1) of described telephotolens mirror group, the second spherical lens (2), the 3rd spherical lens (3) and the 4th spherical lens (4) is 8mm;
The spherical radius of first spherical lens (1) of described telephotolens mirror group, the second spherical lens (2), the 3rd spherical lens (3) and the 4th spherical lens (4) is respectively 110.99mm, 3884.975mm;-352.941mm ,-505.768mm; 56.365mm, 56.187mm; 194.711mm, 61.780mm;
The spherical lens thickness of the 8th spherical lens (8) of described telephoto objective mirror group, the 9th spherical lens (9) and the tenth spherical lens (10) is respectively 3mm, 3mm and 2mm;
The spherical radius of the 8th spherical lens (8) of described telephoto objective mirror group, the 9th spherical lens (9), the tenth spherical lens (10) and the 11 spherical lens (11) is respectively 92.400mm, 2203.038mm;-559.161mm, 159.228mm; 36.699mm, 17.979mm; 41.691mm, 20.269mm.
2. the burnt high picture element imaging optical system of a kind of small-sized length according to claim 1, is characterized in that: the spherical lens bore of the 5th spherical lens (5) in described telescopic ocular mirror group, the 6th spherical lens (6) and the 7th spherical lens (7) is respectively 12mm, 11mm and 11mm.
3. the burnt high picture element imaging optical system of a kind of small-sized length according to claim 1, is characterized in that: the spherical lens bore of first spherical lens (1) of described telephotolens mirror group, the second spherical lens (2), the 3rd spherical lens (3) and the 4th spherical lens (4) is respectively 60mm, 56mm, 50mm and 40mm.
4. the burnt high picture element imaging optical system of a kind of small-sized length according to claim 1, is characterized in that: the spherical lens bore of the 8th spherical lens (8) of described telephoto objective mirror group, the 9th spherical lens (9), the tenth spherical lens (10) and the 11 spherical lens (11) is respectively 11mm, 10mm, 3mm and 3mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210166516.4A CN102681161B (en) | 2012-05-25 | 2012-05-25 | Small imaging optical system with long focal length and high image quality |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210166516.4A CN102681161B (en) | 2012-05-25 | 2012-05-25 | Small imaging optical system with long focal length and high image quality |
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| CN102681161B true CN102681161B (en) | 2014-04-02 |
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| CN104570276B (en) * | 2013-10-09 | 2017-08-01 | 睿励科学仪器（上海）有限公司 | A kind of pipe mirror of image identification system and the image identification system with the Guan Jing |
| CN103592745A (en) * | 2013-11-28 | 2014-02-19 | 长春理工大学 | Telephoto type lens image rotating telescope objective |
| CN105739049A (en) * | 2016-04-14 | 2016-07-06 | 南京昂驰光电科技有限公司 | Starlight-level road monitoring 50mm zoom optical lens assembly |
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| CN1199177A (en) * | 1997-05-12 | 1998-11-18 | 中国科学院西安光学精密机械研究所 | Imaging structure with long-focal length optical system |
| CN101581823A (en) * | 2008-05-13 | 2009-11-18 | 比亚迪股份有限公司 | Camera lens for projector |
| CN201637982U (en) * | 2010-04-15 | 2010-11-17 | 江德义 | Telescopic digital camera |
| JP2011123336A (en) * | 2009-12-11 | 2011-06-23 | Canon Inc | Rear attachment lens and imaging optical system including the same |
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- 2012-05-25 CN CN201210166516.4A patent/CN102681161B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1199177A (en) * | 1997-05-12 | 1998-11-18 | 中国科学院西安光学精密机械研究所 | Imaging structure with long-focal length optical system |
| CN101581823A (en) * | 2008-05-13 | 2009-11-18 | 比亚迪股份有限公司 | Camera lens for projector |
| JP2011123336A (en) * | 2009-12-11 | 2011-06-23 | Canon Inc | Rear attachment lens and imaging optical system including the same |
| CN201637982U (en) * | 2010-04-15 | 2010-11-17 | 江德义 | Telescopic digital camera |
Non-Patent Citations (2)
| Title |
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| 《远焦系统望远性的测量》;段志姣;《计量与测试技术》;20050331;第32卷(第3期);第4-7页 * |
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