CN1725054A - The small-size long working distance micro optical system that use in a kind of suitable space - Google Patents
The small-size long working distance micro optical system that use in a kind of suitable space Download PDFInfo
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- CN1725054A CN1725054A CN 200510027651 CN200510027651A CN1725054A CN 1725054 A CN1725054 A CN 1725054A CN 200510027651 CN200510027651 CN 200510027651 CN 200510027651 A CN200510027651 A CN 200510027651A CN 1725054 A CN1725054 A CN 1725054A
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Abstract
The invention discloses the small-size long working distance micro optical system that use in a kind of suitable space, this system comprises a long working distance achromatic micro objective and a dioptric system.Said long working distance achromatic micro objective is made up of first positive lens, second positive lens, positive balsaming lens group, negative balsaming lens group to picture side in order from object space.Said dioptric system is made of two reflecting prisms, optics gummed.Advantage of the present invention is to adopt reverse optical path-tracing, and wherein negative lens group plays increased magnification, increases rear cut-off distance, thereby increases back work distance; In conjunction with another positive lens groups and two monolithic positive lenss, make each power of lens rationalize uniform distribution, can reduce senior aberration, realize flattened field, mutual group becomes the long reach microcobjective.And adopt the total-reflection type dioptric system to shorten axial distance, constitute a kind of small-size long working distance micro optical system of suitable space practical application.
Description
Technical field
The present invention relates to optical element, system, specifically be meant a kind of small-size long working distance micro optical system that is used for the three-dimensional distribution cell target of observation space.
Background technology
Space life science be one brand-new, also be the field of present countries in the world active research, carry out significant to the space life science development of microexamination research in the space.The target of space microexamination is to be contained in the cell that the closed container neutral body distributes, and is very different with the ground microexamination target that is contained on the slide glass.Owing to the effect of gravity, target is tiled into one deck, can treat as a plane on ground; Be close to disappearance at space gravity, cell suspension is space multistory and distributes in container.To carry out microexamination in the space, the small-size long working distance micro optical system at the space multistory distribution cell target in the application of space at first must be arranged.
The general high more then operating distance of the employed microcobjective enlargement ratio of micro optical system is more little, the various micro optical systems that use on existing ground are applied to different technical fields, as laboratory micro optical system commonly used, comprise micro optical systems such as biology microscope, metaloscope, its operating distance is less, be suitable for the observation of planar sample sheet, be not suitable for the microexamination of the solid distribution cell target in the space, and the volume and weight of ground micro optical system is used in the incompatibility space also.
At using on some special ground, as test light transmitting fiber, wool, fine wire, man-made fiber etc., designed long reach microcobjective uses in a kind of medium, and its enlargement ratio is recently realizing by image distance and object distance mainly.The object distance of microcobjective is seen as operating distance, long more operating distance, then image distance is also long more, and the whole optical system length overall is just long more.In order to make the volume miniaturization of micro optical system, patent 96117232.0 " long reach short lens barrel erect image microcobjective " is when adopting negative lens group to realize long reach, utilize benhain prism to realize the erect image short lens barrel, this invention is to shorten axial distance by 6 total reflections of light in benhain prism.Microexamination for the solid distribution cell target in the application of space, cell suspension is in container, require optical system to have certain field angle,, be difficult to all realize repeatedly total reflection for the light of different visual fields because total reflection has certain limitation for angle of incidence of light; In addition, for achromatic objective, use prism to realize that short lens barrel can bring aberration to microscopic system, and then influence image quality.
Summary of the invention
Some problems based on above-mentioned prior art existence, the objective of the invention is by designing the achromatic micro objective of a long reach, and adopt the total-reflection type dioptric system to shorten axial distance, constitute a kind of small-size long working distance micro optical system of suitable space practical application.
The object of the present invention is achieved like this, and small-size long working distance micro optical system comprises in order from object space to picture side as shown in Figure 1; A long working distance achromatic micro objective 100 and a dioptric system 200.
Said long working distance achromatic micro objective 100 is made up of first positive lens 110, second positive lens 120, positive balsaming lens group 130, negative balsaming lens group 140 to picture side in order from object space.
Said dioptric system 200 is made of two reflecting prisms, 201,202 optics gummed.
See through first positive lens 110, second positive lens 120 of microcobjective 100, lens 131, the lens 132 of positive balsaming lens group 130 from the light beam of object space, lens 141, the lens 142 of negative balsaming lens group 140 reflex to picture side through first reflecting prism 201, second reflecting prism 202 of dioptric system 200.
Reverse optical path-tracing is adopted in microcobjective design of the present invention, and wherein negative lens group plays increased magnification, increases rear cut-off distance, thereby increases back work distance; In conjunction with another positive lens groups and two monolithic positive lenss, make each power of lens rationalize uniform distribution, can reduce senior aberration, realize flattened field, mutual group becomes the long reach microcobjective.The design of long reach microcobjective system by the theoretical structural parameters of determining optical system of primary aberration, is optimized senior aberration again, finally obtains the optical texture of microcobjective.
Use two reflecting prisms to carry out the optics gummed and constitute the total-reflection type dioptric system, this system is introduced the image quality that micro-light path does not change system substantially, and can make the contraction in length of optical system, to satisfy the space demands of applications.
Advantage of the present invention is:
This system realizes the long working distance of high magnification microcobjective by adopting negative balsaming lens group, and in conjunction with positive balsaming lens group and two single element lens, the reasonable distribution focal power reduces senior aberration, realize flattened field, can adapt in use in the space sample box in the microscopic observation of 3 D stereo target;
The volume of this long working distance micro optical system after by refractive power can be controlled, compact conformation, firmly, be convenient to realize miniaturization.
Description of drawings
Fig. 1 is a micro optical system structural representation of the present invention;
Among the figure: d1 is the operating distance of microcobjective;
D2 is positive lens 110 and positive lens 120 spacing distances;
D3 is positive lens 120 and positive balsaming lens group 130 spacing distances;
D4 is positive balsaming lens group 130 and negative balsaming lens group 140 spacing distances;
D5 is the spacing distance of microcobjective to dioptric system 200;
D6 is that dioptric system is to the distance of accepting image planes;
R111 is the front surface radius-of-curvature of positive lens 110;
R112 is the rear surface radius-of-curvature of positive lens 110;
R121 is the front surface radius-of-curvature of positive lens 120;
R122 is the rear surface radius-of-curvature of positive lens 120;
R1311 is the front surface radius-of-curvature of positive balsaming lens group 130;
R1312-21 is the cemented surface radius-of-curvature of positive balsaming lens group 130;
R1322 is the rear surface radius-of-curvature of positive balsaming lens group 130;
R1411 is negative balsaming lens group 140 front surface radius-of-curvature;
R1412-21 is the cemented surface radius-of-curvature of negative balsaming lens group 140;
R1422 is the rear surface radius-of-curvature of negative balsaming lens group 140.
Embodiment
According to the small-size long working distance micro optical structure among Fig. 1, designed an achromatism flattened field long working distance micro optical system, picture element is near diffraction limit.Systematic technical indicator is as follows:
Numerical aperture: N.A=0.45
Focal length: 4.7mm
Visual field: 18 °
Operation wavelength: 0.4 μ m-0.7 μ m
The specific design parameter of optical system is as shown in table 1.
Table 1
| The element title | The face sequence number | Radius-of-curvature (mm) | Interval or thickness (mm) | Material | Aperture (mm) |
| Object plane | 0.6 | ||||
| | R111 (aperture diaphragm) R112 | -124.5 -7.5 | 6.8 3.44 | K9 | 9.8 9.8 |
| | R121 R122 | 82.5 14.6 | 0.1 3.2 | K9 | 11 11 |
| Positive balsaming lens group 130 | R1311 R1312-21 R1322 | 34 7.5 -28 | 0.1 1 4.5 | ZF6 QK3 | 11.5 11.5 11.5 |
| Negative | R1411 R1412-21 R1422 | 10.23 5.2 4.95 | 22.4 6 6 | LAF4 LAF3 | 12.6 12.6 8.8 |
| Image planes | 180 | 24 |
Claims (2)
1. the small-size long working distance micro optical system that use in suitable space comprises in order from object space to picture side: a long working distance achromatic micro objective (100) and a dioptric system (200); It is characterized in that:
Said long working distance achromatic micro objective (100) is made up of first positive lens (110), second positive lens (120), positive balsaming lens group (130), negative balsaming lens group (140) to picture side in order from object space;
Said dioptric system (200) is made of two reflecting prisms (201,202) optics gummed;
See through first positive lens (110), second positive lens (120) of microcobjective (100), the lens (131,132) of positive balsaming lens group (130) from the light beam of object space, the lens (141,142) of negative balsaming lens group (140) reflex to picture side through first reflecting prism (201), second reflecting prism (202) of dioptric system (200).
2. the small-size long working distance micro optical system of using according to a kind of suitable space of claim 1, it is characterized in that: said first positive lens (110), second positive lens (120) are made for the K9 glass material; The lens (131) of positive balsaming lens group (130) are made for the ZF6 glass material, and lens (132) are made for the QK3 glass material; The lens (141) of negative balsaming lens group (140) are made for the LAF4 glass material, and lens (142) are made for the LAF3 glass material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100276510A CN100345022C (en) | 2005-07-11 | 2005-07-11 | Small-size long working distance micro optical system suitable for space application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100276510A CN100345022C (en) | 2005-07-11 | 2005-07-11 | Small-size long working distance micro optical system suitable for space application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1725054A true CN1725054A (en) | 2006-01-25 |
| CN100345022C CN100345022C (en) | 2007-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100276510A Expired - Fee Related CN100345022C (en) | 2005-07-11 | 2005-07-11 | Small-size long working distance micro optical system suitable for space application |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235405A (en) * | 2008-04-11 | 2013-08-07 | 株式会社尼康 | Microscope objective lens |
| CN103558676A (en) * | 2013-11-07 | 2014-02-05 | 梧州奥卡光学仪器有限公司 | Six-time over-long working distance objective lens |
| CN106443995A (en) * | 2016-11-25 | 2017-02-22 | 中国科学院上海技术物理研究所 | Optical fiber co-focus micro-imaging instrument for fluorescence observation of spatial biological sample |
| CN114397751A (en) * | 2021-12-31 | 2022-04-26 | 北方信息控制研究院集团有限公司 | Guidance self-checking division photoelectric imaging detection microscope objective |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7864457B2 (en) | 2009-04-28 | 2011-01-04 | Micron Technology, Inc. | Achromatic lens structure, method of fabrication, and imaging devices and systems using the same |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084885A (en) * | 1973-11-27 | 1978-04-18 | Societe D'optique, Precision Electronique Et Mecanique - Sopelem | Microscope objective |
| US4059342A (en) * | 1975-01-28 | 1977-11-22 | Olympus Optical Co., Ltd. | Microscope objective with correcting means |
| JPS5579407A (en) * | 1978-12-11 | 1980-06-14 | Olympus Optical Co Ltd | Objective lens of microscope |
| CN86207797U (en) * | 1986-10-17 | 1987-12-09 | 郝福祥 | T type superfunction telescope |
| JPH08271796A (en) * | 1995-04-04 | 1996-10-18 | Olympus Optical Co Ltd | Objective lens for microscope |
| CN2400808Y (en) * | 1999-12-16 | 2000-10-11 | 中国科学院上海光学精密机械研究所 | Large field achromatic microscope objective |
-
2005
- 2005-07-11 CN CNB2005100276510A patent/CN100345022C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103235405A (en) * | 2008-04-11 | 2013-08-07 | 株式会社尼康 | Microscope objective lens |
| CN103235405B (en) * | 2008-04-11 | 2015-07-01 | 株式会社尼康 | Microscope objective lens |
| CN103558676A (en) * | 2013-11-07 | 2014-02-05 | 梧州奥卡光学仪器有限公司 | Six-time over-long working distance objective lens |
| CN103558676B (en) * | 2013-11-07 | 2015-08-12 | 梧州奥卡光学仪器有限公司 | 6 times of SLWD object lens |
| CN106443995A (en) * | 2016-11-25 | 2017-02-22 | 中国科学院上海技术物理研究所 | Optical fiber co-focus micro-imaging instrument for fluorescence observation of spatial biological sample |
| CN106443995B (en) * | 2016-11-25 | 2019-01-01 | 中国科学院上海技术物理研究所 | Optical fiber confocal microscopic image instrument for space biological sample Fluirescence observation |
| CN114397751A (en) * | 2021-12-31 | 2022-04-26 | 北方信息控制研究院集团有限公司 | Guidance self-checking division photoelectric imaging detection microscope objective |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100345022C (en) | 2007-10-24 |
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Granted publication date: 20071024 Termination date: 20110711 |