CN103576274B - Rigid pipe endoscope object lens fixing means - Google Patents
Rigid pipe endoscope object lens fixing means Download PDFInfo
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- CN103576274B CN103576274B CN201210272219.8A CN201210272219A CN103576274B CN 103576274 B CN103576274 B CN 103576274B CN 201210272219 A CN201210272219 A CN 201210272219A CN 103576274 B CN103576274 B CN 103576274B
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Abstract
The invention belongs to endoscopic technique field, be specifically related to a kind of rigid pipe endoscope object lens fixing means.Method of the present invention by object lens first negative group of plano-concave lens, turn to prism, object lens the 3rd group of plano-convex lens to use optical cement gummed to be an assembly, optical angle gauge can be used to carry out precision adjustment during this assembly gummed.Method of the present invention solves the technical matters that in prior art, low, the whole difficulty of rigid pipe endoscope fixing means positioning precision is large; Achieve the beneficial effect that positioning precision is high, adjustment difficulty is little, water-tight characteristic is good.
Description
Technical field
The invention belongs to endoscopic technique field, be specifically related to a kind of rigid pipe endoscope object lens fixing means.
Background technology
According to the position of observing object when rigid pipe endoscope uses, need to use prism to change viewing directional angle.65 ° ~ 75 ° viewing directional angle prisms adopt half five corner structures usually, Figure 1 shows that large viewing directional angle endoscope objective optical system schematic diagram: it comprises object lens first negative group of plano-concave lens 1, turn to prism 2 and follow-up positive lens; Described follow-up positive lens comprises object lens the 3rd group of plano-convex lens 3 and other optical elements 6,7,8 of endoscope lens.According to the position of observing object when rigid pipe endoscope uses, need to use prism to change viewing directional angle.
Traditional fixing means is for using prism holder, object lens first negative group of plano-concave lens 1, turn between prism 2 and follow-up positive lens three separate, Figure 2 shows that conventional endoscope steering structure schematic diagram, in this structure, object lens first negative group of plano-concave lens 1, turn between prism 2 and object lens the 3rd group of plano-convex lens 3 three separate, positioning precision is low, and adjustment difficulty is large.Turn to prism 2 to when turning to prism 2 to adjust by mobile, turn to the adjustment of prism to be carry out in narrow and small endoscope pipe, because endoscope pipe is narrow and small, cannot detect, very difficult guarantee turns to the Adjustment precision of prism 2, causes rigid pipe endoscope image quality decrease; Object lens first negative group of plano-concave lens 1 should carry out water-tight, adjusts its positional precision again, debugs consuming time, and assembly precision is very low, easily leaks.
Summary of the invention
The technical issues that need to address of the present invention are: rigid pipe endoscope fixing means object lens first negative group of plano-concave lens 1 in prior art, turn between prism 2 and object lens the 3rd group of plano-convex lens 3 three separate, and positioning precision is low, and adjustment difficulty is large.
Technical scheme of the present invention is as described below:
Step 1
Gummed turns to the plane of prism and object lens the 3rd group of plano-convex lens;
Step 2
Object lens first negative group of plano-concave lens, along turning to the inclined-plane of prism to move, leaves adjusting play when designing between object lens first negative group of plano-concave lens and the 3rd group of plano-convex lens;
Step 3
Anti-reflection film is plated in the round territory corresponding to object lens first negative group of plano-concave lens concave surface clear aperture; Except plating except anti-reflection film in the round territory corresponding to object lens first negative group of plano-concave lens concave surface clear aperture, turning to all silver-plated film in the position of cemented surface between prism and object lens first negative group of plano-concave lens;
Step 4
Turn to prism to be exposed to another reflecting surface in air, that do not contact with object lens the 3rd group of plano-convex lens and object lens first negative group of plano-concave lens to glue together reflecting surface and protect prism, and turn to silver-plated film on the side of prism what protect prism to contact with reflecting surface;
Step 5
Object lens first negative group of plano-concave lens, prism, object lens the 3rd group of plano-convex lens lens, reflecting surface is turned to protect prism to use the assembly that composes of optical cement with object lens the 3rd group of plano-convex lens lens axis for benchmark, use edge polisher cylindrical grinding, when this cylindrical is for assembling and rigid pipe endoscope mirror pipe locate;
Step 6
By object lens first negative group of plano-concave lens, turn to the assembly of prism, object lens the 3rd group of plano-convex lens and protection prism cementing one-tenth integrally to load endoscope pipe, form large viewing directional angle endoscope lens together with other optical elements of endoscope lens.
Preferably, in step 1, use precision goniometer to detect the positional precision turning to prism, carry out precision dress school.
Beneficial effect of the present invention is:
(1) solve the difficult problem cannot carrying out detecting, cannot ensureing the Adjustment precision of prism when conventional endoscope turns to prism to assemble, the image quality of rigid pipe endoscope can be ensured by high-quality;
(2) as shown in Figure 3, by object lens first negative group of plano-concave lens, prism, object lens the 3rd group of plano-convex lens is turned to use optical cement gummed to be an assembly, optical angle gauge can be used during this assembly gummed to carry out precision adjustment, guarantee the positioning precision and the endoscope steering angle precision that turn to prism, positioning precision is high, and adjustment difficulty is little;
(3) add contact area bonding between lens with mirror pipe, water-tight characteristic be improved significantly.
Accompanying drawing explanation
Fig. 1 is large viewing directional angle endoscope objective optical system schematic diagram;
Fig. 2 is existing object lens stationary installation schematic diagram;
Fig. 3 glues together schematic diagram for turning to prism and object lens the 3rd group of plano-convex lens;
Fig. 4 is object lens first negative group of plano-concave lens and turn to prism and object lens the 3rd group of plano-convex lens to glue together part to glue together schematic diagram mutually;
Fig. 5 is for turning to prism and object lens first negative group of plano-concave lens glued surfaces plated film schematic diagram;
Fig. 6 is reflectance coating protection prism and first negative group of plano-concave lens, turn to prism, object lens the 3rd group of plano-convex lens to glue together part glues together schematic diagram mutually;
Fig. 7 is the rigid pipe endoscope schematic diagram adopting fixing means of the present invention assembling.
In figure, 1-object lens first negative group of plano-concave lens, 2-turns to prism, 3-object lens the 3rd group of plano-convex lens, 4-reflectance coating protection prism, 5-adjusting play, other optical elements of 6 ~ 8-endoscope lens, 9-endoscope pipe.
Embodiment
Below in conjunction with drawings and Examples, rigid pipe endoscope object lens fixing means of the present invention is described in detail.
Step 1
As shown in Figure 3, the plane of prism and object lens the 3rd group of plano-convex lens is turned to first to glue together, can the position of accurate adjustment prism during gummed, ensure positional precision between the two.Preferred use precision goniometer detects the positional precision of prism, carries out precision dress school.
Step 2
As shown in Figure 4, object lens first negative group of plano-concave lens is along turning to the inclined-plane of prism to move, adjusting play is left when designing between object lens first negative group of plano-concave lens and the 3rd group of plano-convex lens, ensure that relative position between the two can adjust, and then guarantee object lens first negative group of plano-concave lens, turn to positional precision between prism, object lens the 3rd group of plano-convex lens lens.
Step 3
Anti-reflection film is plated in the round territory corresponding to object lens first negative group of plano-concave lens concave surface clear aperture; As shown in Figure 5, except plating except anti-reflection film in the round territory corresponding to object lens first negative group of plano-concave lens concave surface clear aperture, all silver-plated film in the position of cemented surface between prism and object lens first negative group of plano-concave lens is being turned to.Silverskin reflectivity is high, while the raising system efficiency of light energy utilization, can play the effect eliminating veiling glare.
Step 4
As shown in Figure 6; turn to prism to be exposed to another reflecting surface in air, that do not contact with object lens the 3rd group of plano-convex lens and object lens first negative group of plano-concave lens to glue together reflecting surface and protect prism; and turn to silver-plated film on the side of prism what protect prism to contact with reflecting surface, improve light-transmissive rate.
Step 5
Object lens first negative group of plano-concave lens, prism, object lens the 3rd group of plano-convex lens lens, reflecting surface is turned to protect prism to use the assembly that composes of optical cement with object lens the 3rd group of plano-convex lens lens axis for benchmark; use edge polisher cylindrical grinding; when this cylindrical is for assembling and rigid pipe endoscope mirror pipe locate; contact area when adding bonding between lens with mirror pipe compared with traditional fixing means, water-tight characteristic is obviously improved.
Step 6
As shown in Figure 7; by object lens first negative group of plano-concave lens, turn to the assembly of prism, object lens the 3rd group of plano-convex lens and protection prism cementing one-tenth integrally to load endoscope pipe, form large viewing directional angle endoscope lens together with other optical elements of endoscope lens.
Claims (2)
1. rigid pipe endoscope object lens fixing means, is characterized in that: comprise the following steps:
Step 1
Gummed turns to the plane of prism and object lens the 3rd group of plano-convex lens;
Step 2
Object lens first negative group of plano-concave lens, along turning to the ramp of prism to move, leaves adjusting play when designing between object lens first negative group of plano-concave lens and the 3rd group of plano-convex lens;
Step 3
Anti-reflection film is plated in the round territory corresponding to object lens first negative group of plano-concave lens concave surface clear aperture; Except plating except anti-reflection film in the round territory corresponding to object lens first negative group of plano-concave lens concave surface clear aperture, turning to all silver-plated film in the position of cemented surface between prism and object lens first negative group of plano-concave lens;
Step 4
Turn to prism to be exposed to another reflecting surface in air, that do not contact with object lens the 3rd group of plano-convex lens and object lens first negative group of plano-concave lens to glue together reflecting surface and protect prism, and turn to silver-plated film on the side of prism what protect prism to contact with reflecting surface;
Step 5
Object lens first negative group of plano-concave lens, prism, object lens the 3rd group of plano-convex lens lens, reflecting surface is turned to protect prism to use the assembly that composes of optical cement with object lens the 3rd group of plano-convex lens lens axis for benchmark, use edge polisher cylindrical grinding, when this cylindrical is for assembling and rigid pipe endoscope mirror pipe locate;
Step 6
By object lens first negative group of plano-concave lens, turn to the assembly of prism, object lens the 3rd group of plano-convex lens and protection prism cementing one-tenth integrally to load endoscope pipe, form large viewing directional angle endoscope lens together with other optical elements of endoscope lens.
2. rigid pipe endoscope object lens fixing means according to claim 1, is characterized in that:
In step 1, use precision goniometer to detect the positional precision turning to prism, carry out precision dress school.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272219.8A CN103576274B (en) | 2012-08-01 | 2012-08-01 | Rigid pipe endoscope object lens fixing means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272219.8A CN103576274B (en) | 2012-08-01 | 2012-08-01 | Rigid pipe endoscope object lens fixing means |
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| Publication Number | Publication Date |
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| CN103576274A CN103576274A (en) | 2014-02-12 |
| CN103576274B true CN103576274B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210272219.8A Active CN103576274B (en) | 2012-08-01 | 2012-08-01 | Rigid pipe endoscope object lens fixing means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU185793U1 (en) * | 2018-07-02 | 2018-12-19 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет" | TELEVISION ENDOSCOPE |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103760658A (en) * | 2014-01-24 | 2014-04-30 | 中国航天科工集团第三研究院第八三五八研究所 | Rigid tube endoscope objective lens |
| CN104635315A (en) * | 2015-01-28 | 2015-05-20 | 江苏北方湖光光电有限公司 | Method for manufacturing opaque visible light prism component by gluing |
| CN107102433B (en) * | 2017-06-30 | 2019-08-20 | 鹰利视医疗科技有限公司 | Display system is imaged in hard pipe type endoscopic optical |
| CN114994903A (en) * | 2022-07-07 | 2022-09-02 | 福建光旭科技有限公司 | Hard tube endoscope end structure and assembling method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878485A (en) * | 1989-02-03 | 1989-11-07 | Adair Edwin Lloyd | Rigid video endoscope with heat sterilizable sheath |
| US5377669A (en) * | 1992-04-06 | 1995-01-03 | Henke-Sass, Wolf Gmbh | Sapphire protective covering for medical endoscope |
| CN201602739U (en) * | 2009-09-22 | 2010-10-13 | 威海威高医疗系统有限公司 | Endoscope objective lens group with apparent direction angle |
| CN201859255U (en) * | 2010-10-26 | 2011-06-08 | 张阳德 | Non-spherical lens hard-pipe endoscope |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58190913A (en) * | 1982-05-01 | 1983-11-08 | Olympus Optical Co Ltd | Strabismal hard endoscope |
-
2012
- 2012-08-01 CN CN201210272219.8A patent/CN103576274B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4878485A (en) * | 1989-02-03 | 1989-11-07 | Adair Edwin Lloyd | Rigid video endoscope with heat sterilizable sheath |
| US5377669A (en) * | 1992-04-06 | 1995-01-03 | Henke-Sass, Wolf Gmbh | Sapphire protective covering for medical endoscope |
| CN201602739U (en) * | 2009-09-22 | 2010-10-13 | 威海威高医疗系统有限公司 | Endoscope objective lens group with apparent direction angle |
| CN201859255U (en) * | 2010-10-26 | 2011-06-08 | 张阳德 | Non-spherical lens hard-pipe endoscope |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU185793U1 (en) * | 2018-07-02 | 2018-12-19 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный архитектурно-строительный университет" | TELEVISION ENDOSCOPE |
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| CN103576274A (en) | 2014-02-12 |
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