CN103091829A - Optical inversion system of rigid tube endoscope - Google Patents
Optical inversion system of rigid tube endoscope Download PDFInfo
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- CN103091829A CN103091829A CN2012104786781A CN201210478678A CN103091829A CN 103091829 A CN103091829 A CN 103091829A CN 2012104786781 A CN2012104786781 A CN 2012104786781A CN 201210478678 A CN201210478678 A CN 201210478678A CN 103091829 A CN103091829 A CN 103091829A
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Abstract
The invention belongs to the technical field of rigid tube endoscopes and particularly relates to an optical inversion system of a rigid tube endoscope. The optical inversion system of the rigid tube endoscope comprises odd groups of inversion lens groups arranged along an optical axis of the system, wherein at least one group of inversion lens groups is formed by only two stick-shaped lenses. A diaphragm is arranged between the two stick-shaped lenses. Only one group of inversion lens groups is formed by two stick-shaped lenses along the optical axis of the system, wherein the front ends and the back ends of the two stick-shaped lenses are glued with concave lenses, and a diaphragm is arranged between the two stick-shaped lenses. The inversion lens groups with two structural styles can be arranged along the optical axis in an arbitrary combination mode to form a double-telecentric light path with 1:1 imaging. The optical inversion system of the rigid tube endoscope solves the technical problems that an existing optical inversion system of a rigid tube endoscope is complex in structure and high in manufacturing cost, and has the advantages of being capable of well correcting axial color difference of the system and obtaining an image with good contrast ratio and definition, simple in structure, less in gluing face, and capable of obviously reducing manufacturing cost.
Description
Technical field
The invention belongs to the rigid pipe endoscope technical field, be specifically related to a kind of rigid pipe endoscope optical inversion system.
Background technology
As shown in Figure 1, the rigid pipe endoscope optical system comprises three parts: rigid pipe endoscope object lens, rigid pipe endoscope optical inversion system and rigid pipe endoscope eyepiece.Wherein, the rigid pipe endoscope object lens become inverted image to thing; The rigid pipe endoscope optical inversion system is to object lens imaging imaging in 1: 1 again, through repeatedly again focus on image rotation after finally become upright real image on rigid pipe endoscope eyepiece object space focal plane, make the optical length of rigid pipe endoscope satisfy the requirement of rigid pipe endoscope active length; The observer observes upright real image by the rigid pipe endoscope eyepiece.
Rigid pipe endoscope optical inversion system commonly used contains the identical image rotation lenses group of odd number group structure, and these image rotation lenses groups increase the optical system overall length with the repeatedly imaging of object lens imaging.In order to proofread and correct the aberration of rigid pipe endoscope, each group image rotation lenses group is all wanted independent correcting chromatic aberration usually, and therefore, each group image rotation lenses group all contains a slice negative lens.Thus, the number of optical elements of whole rigid pipe endoscope relay system increases severely when a large amount of image rotation lenses group of needs, and processing charges significantly increases.
Early stage image rotation lenses group shown in Figure 2 is made of two two gummed thin lenss, and in the middle of diaphragm was positioned at both: the vertical axial aberration of the image rotation lenses group of this structure obtained well-corrected; But owing to adopting thin lens, system's luminous energy transmitance is lower, and eyeglass easily tilts when assembling, thereby affects system's picture element.
Image rotation lenses group shown in Figure 3, each image rotation lenses is formed for negative thin lens gummed by Hopkins rod-like mirror and focal length, be provided with diaphragm between two image rotation lenses: the image rotation lenses group thin lens of this structure uses the optical glass of high index of refraction, high dispersion, and axial chromatic aberration can be proofreaied and correct; But this structure can not be proofreaied and correct the curvature of field.
Image rotation lenses group shown in Figure 4, each image rotation lenses are cemented doublet, are provided with diaphragm between two image rotation lenses: the image rotation lenses group of this structure is because positive negative lens is the Hopkins rod-like mirror, thickness is close, can not only correcting chromatic aberration, and can proofread and correct the curvature of field, picture quality is high; But the easy fracture of cemented surface place concave surface.
Image rotation lenses group shown in Figure 5 comprises two Hopkins rod-like mirrors, and be provided with diaphragm between two image rotation lenses: the image rotation lenses group of this structure is simple in structure; But can't proofread and correct axial chromatic aberration, system's picture element is undesirable.
Image rotation lenses group shown in Figure 6, each image rotation lenses are the Hopkins rod-like mirror that the two ends gummed has negative lens, and be provided with diaphragm between two image rotation lenses: the image rotation lenses group of this structure can realize the effect of corrective system axial chromatic aberration; But its complex structure, cemented surface is many, and processing cost is high.
Summary of the invention
The technical issues that need to address of the present invention are: existing rigid pipe endoscope optical inversion system, and every group of image rotation lenses group is equipped with negative lens, complex structure, cemented surface is many, and processing cost is high.
Technical scheme of the present invention is as described below:
A kind of rigid pipe endoscope optical inversion system comprises the odd number group image rotation lenses group of arranging along systematic optical axis; At least one group of image rotation lenses group only is comprised of two rod-shaped lens, is provided with diaphragm between described two rod-shaped lens, consists of 1: 1 pair of heart steering far away; At least one group of image rotation lenses group is comprised of two rod-shaped lens that are provided with negative lens along systematic optical axis direction rear and front end, is provided with diaphragm between described two rod-shaped lens; The image rotation lenses group of above-mentioned two kinds of versions is arranged along the systematic optical axis direction by any sequencing.
As preferred version,
Only formed by two rod-shaped lens along systematic optical axis direction rear and front end gummed negative lens by one group of image rotation lenses group, be provided with diaphragm between described two rod-shaped lens.
The rigid pipe endoscope optical inversion system can comprise three groups of image rotation lenses groups of arranging along systematic optical axis: two groups of image rotation lenses groups only are comprised of two rod-shaped lens, are provided with diaphragm in the middle of described two rod-shaped lens; One group of image rotation lenses group is comprised of two rod-shaped lens along systematic optical axis direction rear and front end gummed negative lens; Be provided with diaphragm in the middle of described two rod-shaped lens; The image rotation lenses group of above-mentioned two kinds of versions is arranged along the systematic optical axis direction by any sequencing.
The rigid pipe endoscope optical inversion system also can comprise five groups of image rotation lenses groups of arranging along systematic optical axis: four groups of image rotation lenses groups only are comprised of two rod-shaped lens, are provided with diaphragm in the middle of described two rod-shaped lens; One group of image rotation lenses group is comprised of two rod-shaped lens along systematic optical axis direction rear and front end gummed negative lens; Be provided with diaphragm in the middle of described two rod-shaped lens; The image rotation lenses group of above-mentioned two kinds of versions is arranged along the systematic optical axis direction by any sequencing.
As further preferred version,
Described rod-shaped lens is the Hopkins rod-shaped lens, and the two ends spherical radius equates.The beneficial effect that the present invention obtains is:
Rigid pipe endoscope optical inversion system of the present invention had both been proofreaied and correct well the system axial aberration, had been obtained contrast and sharpness image preferably, again simple in structure, cemented surface is few, has significantly reduced processing cost.
Description of drawings
Fig. 1 is rigid pipe endoscope optical system schematic diagram;
Fig. 2～Fig. 6 is image rotation lenses group structural representation of the prior art;
Fig. 7 is embodiment 1 rigid pipe endoscope optical inversion system schematic diagram;
Fig. 8 is embodiment 2 rigid pipe endoscope optical inversion system schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, rigid pipe endoscope optical inversion system of the present invention is elaborated.
As shown in Figure 7, rigid pipe endoscope optical inversion system of the present invention comprises the odd number group image rotation lenses group of arranging along systematic optical axis: wherein, at least one group of image rotation lenses group only is comprised of two rod-shaped lens, is provided with diaphragm between described two rod-shaped lens, consists of 1: 1 pair of heart steering far away; At least one group of image rotation lenses group is comprised of two rod-shaped lens that are provided with negative lens along systematic optical axis direction rear and front end, is provided with diaphragm between described two rod-shaped lens.The image rotation lenses group of above-mentioned two kinds of versions can be arranged along the systematic optical axis direction by any sequencing.
As preferred implementation, rigid pipe endoscope optical inversion system of the present invention, only be comprised of two rod-shaped lens along systematic optical axis direction rear and front end gummed negative lens one group of image rotation lenses group, be provided with diaphragm between described two rod-shaped lens, all the other group image rotation lenses groups are not all established negative lens.In addition, described rod-shaped lens is preferably the Hopkins rod-shaped lens, and the two ends spherical radius equates.
Embodiment 1
The rigid pipe endoscope optical inversion system of the present embodiment comprises three groups of image rotation lenses groups of arranging along systematic optical axis.
Wherein, two groups of image rotation lenses groups: only be comprised of two Hopkins rod-shaped lens, it does not establish negative lens, can not proofread and correct axial chromatic aberration; Be provided with diaphragm in the middle of described two Hopkins rod-shaped lens, consist of two telecentric systems.
One group of image rotation lenses group: formed by two Hopkins rod-shaped lens along systematic optical axis direction rear and front end gummed negative lens, axial chromatic aberration is effectively proofreaied and correct; Be provided with diaphragm in the middle of described two Hopkins rod-shaped lens, consist of two telecentric systems.
The image rotation lenses group of above-mentioned two kinds of versions can sequentially be arranged with any front and back along the systematic optical axis direction.
Embodiment 2
The rigid pipe endoscope optical inversion system of the present embodiment comprises five groups of image rotation lenses groups of arranging along systematic optical axis.
Wherein, four groups of image rotation lenses groups: only be comprised of two Hopkins rod-shaped lens, it does not establish negative lens, can not proofread and correct axial chromatic aberration; Be provided with diaphragm in the middle of described two Hopkins rod-shaped lens, consist of two telecentric systems.
One group of image rotation lenses group: formed by two Hopkins rod-shaped lens along systematic optical axis direction rear and front end gummed negative lens, axial chromatic aberration is effectively proofreaied and correct; Be provided with diaphragm in the middle of described two Hopkins rod-shaped lens, consist of two telecentric systems.
The image rotation lenses group of above-mentioned two kinds of versions can sequentially be arranged with any front and back along the systematic optical axis direction.
Claims (5)
1. rigid pipe endoscope optical inversion system, comprise the odd number group image rotation lenses group of arranging along systematic optical axis, it is characterized in that: at least one group of image rotation lenses group only is comprised of two rod-shaped lens, is provided with diaphragm between described two rod-shaped lens, consists of 1: 1 pair of heart steering far away; At least one group of image rotation lenses group is comprised of two rod-shaped lens that are provided with negative lens along systematic optical axis direction rear and front end, is provided with diaphragm between described two rod-shaped lens; The image rotation lenses group of above-mentioned two kinds of versions is arranged along the systematic optical axis direction by any sequencing.
2. rigid pipe endoscope optical inversion system according to claim 1 is characterized in that: only be comprised of two rod-shaped lens along systematic optical axis direction rear and front end gummed negative lens one group of image rotation lenses group, be provided with diaphragm between described two rod-shaped lens.
3. rigid pipe endoscope optical inversion system according to claim 2, it is characterized in that: the rigid pipe endoscope optical inversion system comprises three groups of image rotation lenses groups of arranging along systematic optical axis: two groups of image rotation lenses groups only are comprised of two rod-shaped lens, are provided with diaphragm in the middle of described two rod-shaped lens; One group of image rotation lenses group is comprised of two rod-shaped lens along systematic optical axis direction rear and front end gummed negative lens; Be provided with diaphragm in the middle of described two rod-shaped lens; The image rotation lenses group of above-mentioned two kinds of versions is arranged along the systematic optical axis direction by any sequencing.
4. rigid pipe endoscope optical inversion system according to claim 2, it is characterized in that: the rigid pipe endoscope optical inversion system comprises five groups of image rotation lenses groups of arranging along systematic optical axis: four groups of image rotation lenses groups only are comprised of two rod-shaped lens, are provided with diaphragm in the middle of described two rod-shaped lens; One group of image rotation lenses group is comprised of two rod-shaped lens along systematic optical axis direction rear and front end gummed negative lens; Be provided with diaphragm in the middle of described two rod-shaped lens; The image rotation lenses group of above-mentioned two kinds of versions is arranged along the systematic optical axis direction by any sequencing.
5. according to claim 1 and 2 or 3 or 4 described rigid pipe endoscope optical inversion systems, it is characterized in that: described rod-shaped lens is the Hopkins rod-shaped lens, and the two ends spherical radius equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012104786781A CN103091829A (en) | 2012-11-23 | 2012-11-23 | Optical inversion system of rigid tube endoscope |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104786781A CN103091829A (en) | 2012-11-23 | 2012-11-23 | Optical inversion system of rigid tube endoscope |
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| CN103091829A true CN103091829A (en) | 2013-05-08 |
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| CN2012104786781A Pending CN103091829A (en) | 2012-11-23 | 2012-11-23 | Optical inversion system of rigid tube endoscope |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105278094A (en) * | 2014-06-24 | 2016-01-27 | 中国航天科工集团第三研究院第八三五八研究所 | Hard-tube endoscope optical system |
| CN105301757A (en) * | 2015-11-09 | 2016-02-03 | 天津大学 | Stereoscopic endoscope optical system |
| CN105361839A (en) * | 2015-11-30 | 2016-03-02 | 青岛大学附属医院 | Endoscope system with improved optical performance |
| CN105377113A (en) * | 2013-05-15 | 2016-03-02 | 诺瓦达克技术公司 | Highly corrected relay system |
| CN105445926A (en) * | 2015-12-31 | 2016-03-30 | 天津市融和机电科技有限公司 | Image rotation lens group and hard tube endoscope image rotation system employing same |
| CN105511070A (en) * | 2015-12-31 | 2016-04-20 | 天津市融和机电科技有限公司 | Optical system for endoscope |
| CN105662315A (en) * | 2015-12-31 | 2016-06-15 | 天津市融和机电科技有限公司 | High-resolution breast duct endoscope optical system |
| US9877654B2 (en) | 2006-02-07 | 2018-01-30 | Novadaq Technologies Inc. | Near infrared imaging |
| US9968244B2 (en) | 2000-07-14 | 2018-05-15 | Novadaq Technologies ULC | Compact fluorescence endoscopy video system |
| CN108107565A (en) * | 2017-12-01 | 2018-06-01 | 山东威高手术机器人有限公司 | A kind of stereo endoscope optical system |
| US10182709B2 (en) | 2002-01-15 | 2019-01-22 | Novadaq Technologies ULC | Filter for use with imaging endoscopes |
| US10293122B2 (en) | 2016-03-17 | 2019-05-21 | Novadaq Technologies ULC | Endoluminal introducer with contamination avoidance |
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| US6049422A (en) * | 1998-03-26 | 2000-04-11 | Olympus Optical Co., Ltd. | Optical system for non-flexible endoscopes |
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| US6088157A (en) * | 1996-08-05 | 2000-07-11 | Circon Corporation | Relay lens for an endoscope |
| US6049422A (en) * | 1998-03-26 | 2000-04-11 | Olympus Optical Co., Ltd. | Optical system for non-flexible endoscopes |
Non-Patent Citations (1)
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| 向阳等: ""目视医用硬性内窥镜光学系统初始结构设计"", 《长春理工大学学报（自然科学版）》, vol. 30, no. 3, 30 September 2007 (2007-09-30), pages 4 - 6 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9968244B2 (en) | 2000-07-14 | 2018-05-15 | Novadaq Technologies ULC | Compact fluorescence endoscopy video system |
| US10182709B2 (en) | 2002-01-15 | 2019-01-22 | Novadaq Technologies ULC | Filter for use with imaging endoscopes |
| US9877654B2 (en) | 2006-02-07 | 2018-01-30 | Novadaq Technologies Inc. | Near infrared imaging |
| CN105377113A (en) * | 2013-05-15 | 2016-03-02 | 诺瓦达克技术公司 | Highly corrected relay system |
| CN105278094A (en) * | 2014-06-24 | 2016-01-27 | 中国航天科工集团第三研究院第八三五八研究所 | Hard-tube endoscope optical system |
| CN105301757A (en) * | 2015-11-09 | 2016-02-03 | 天津大学 | Stereoscopic endoscope optical system |
| CN105361839A (en) * | 2015-11-30 | 2016-03-02 | 青岛大学附属医院 | Endoscope system with improved optical performance |
| CN105445926A (en) * | 2015-12-31 | 2016-03-30 | 天津市融和机电科技有限公司 | Image rotation lens group and hard tube endoscope image rotation system employing same |
| CN105511070A (en) * | 2015-12-31 | 2016-04-20 | 天津市融和机电科技有限公司 | Optical system for endoscope |
| CN105662315A (en) * | 2015-12-31 | 2016-06-15 | 天津市融和机电科技有限公司 | High-resolution breast duct endoscope optical system |
| US10293122B2 (en) | 2016-03-17 | 2019-05-21 | Novadaq Technologies ULC | Endoluminal introducer with contamination avoidance |
| CN108107565A (en) * | 2017-12-01 | 2018-06-01 | 山东威高手术机器人有限公司 | A kind of stereo endoscope optical system |
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Application publication date: 20130508 |