CN2294467Y - Slit sight glass - Google Patents
Slit sight glass Download PDFInfo
- Publication number
- CN2294467Y CN2294467Y CN 97239647 CN97239647U CN2294467Y CN 2294467 Y CN2294467 Y CN 2294467Y CN 97239647 CN97239647 CN 97239647 CN 97239647 U CN97239647 U CN 97239647U CN 2294467 Y CN2294467 Y CN 2294467Y
- Authority
- CN
- China
- Prior art keywords
- speculum
- light beam
- imaging
- slit
- sight glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000011521 glass Substances 0.000 title claims description 13
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 8
- 230000000007 visual effect Effects 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims abstract description 5
- 238000003384 imaging method Methods 0.000 claims description 18
- 238000005498 polishing Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 abstract description 7
- 239000011148 porous material Substances 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000011846 endoscopic investigation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
Landscapes
- Endoscopes (AREA)
Abstract
The utility model discloses a slit speculum, it adopts gradient refractive index battery of lens, glue into formation of image visual pipe by relay lens stick front end, and with pass the light beam and veneer side by side, periphery cover has the speculum sheath after the veneer, again with terminal suit in the speculum support, and the terminal surface keeps passing the light beam the same with the viewpoint of formation of image visual pipe before the speculum, relay lens stick end face is located the focal plane of eyepiece group, the end of passing the light beam is drawn forth and is connected with cold light source fixed connection, it has simple structure, small, the flexible operation, the wide advantage of range of application, be suitable for medical science, building, the inside inspection in pore in fields such as public security reconnaissance.
Description
The utility model belongs to the architecture advances that narrow duct inner case is checked used sight glass, is involved in endoscopic technique field in the applied optics.
Generally speaking, the duct internal check of 4 millimeter sizes of medically employed endoscope Minimal Realization, usable range is also limited, and the slit inspection more narrow and small for the duct can't realize, as the narrow and small positions such as little joint of human body, the crack of buildings, the inspection of lockhole and evaluation etc.Therefore mostly adopt cut-away for information about needed at present to obtain, this method is when checking work, the original or scene need be opened, its speed is slower, brings great inconvenience to work, and destructiveness is bigger, damaged original scene and article, the effect of inspection is often also undesirable, is medically using, its operation has not only destroyed the basic stitch structure, has also brought bigger misery to patient.
The purpose of this utility model be to provide a kind of simple in structure, volume is small and exquisite, the Slit speculum of flexible operation, wide application.
Technical solution scheme of the present utility model is finished like this, the constituting of designed Slit speculum passes light beam, imaging and looks pipe, sight glass sheath, speculum holder, eyepiece group, cold light source, it is characterized by described imaging and look pipe and adopt the gradient-index lens group, is to glue together image-forming objective lens by the relay lens nose to form; Imaging is looked the Guan Yuchuan light beam and is glued at side by side together, and both cemented surfaces are the plane that polishing is cut in the garden, and the light dielectric film is arranged between cemented surface; The gummed back is with the sight glass sheath in its periphery, its end is sleeved in the speculum holder, and it is identical guarantee to pass the viewpoint that light beam and imaging look pipe at the sight glass front end face, relay lens rod terminal surface is positioned on the focal plane of the eyepiece group that fixedly installs in the speculum holder, and the end of biography light beam is drawn with cold light source by speculum holder and fixedlyed connected.
The front end face that passes light beam and image-forming objective lens can glue together respectively have equidirectional, with the illuminating prism and the image formation prism in the visual field; The afterbody of speculum holder is provided with the switching bayonet socket, but clamping shooting adapter is provided with imaging lens group and miniature camera in adapter, and the outlet line of video camera is connected with external monitor.
Because the utility model adopts the endoscope optical technology; to pass light beam and imaging and look the tube side-by-side gummed; and use gradient index optical element to assemble; it is simple in structure; volume is little; thereby solved preferably because of the narrow and small requirement in duct to the inspection apparatus volume restrictions; and resolution height; can reach 40 pairs of lines per millimeters generally speaking; inspection and identification result for the slit inside of stitching wide 1-2 millimeter are very good; the utility model is when using operation; needn't more former scene or tissue just be cut open and can check; therefore protected former scene or institutional framework preferably, brought great convenience for inspection and evaluation work, the utility model also has simple in structure in addition; the characteristics that usable range is wide are in building; field such as medical science and police reconnaissance can both be used.
Fig. 1 is the structural representation of an instantiation of the designed Slit speculum of the utility model.
The utility model is described in further detail below in conjunction with accompanying drawing:
Among the figure, 1 is illuminating prism, and 2 is image formation prism, and 3 is image-forming objective lens, and 4 is the relay lens rod, and 5 is the sight glass sheath, and 6 for passing light beam, and 7 is the eyepiece group, and 8 is the imaging lens group, and 9 is miniature camera, and 10 is cold light source, and 11 is monitor, and 12 is speculum holder.The imaging of designed Slit speculum is looked pipe and is adopted the gradient-index lens group, be to form by relay lens rod 4 front ends gummed image-forming objective lens 3, and biography light beam 6 is looked tube side-by-side with imaging and is glued at, both cemented surfaces are the plane that polishing is cut in the garden, the light dielectric film is arranged between cemented surface, also can adopt optical cement to play the function of light insulation, the gummed back is with sight glass sheath 5 in its periphery, it is material that sheath can adopt rubber or plastics, again its end is set in the speculum holder 12, and it is identical to guarantee to pass the viewpoint that light beam 6 and imaging look pipe at the sight glass front end face, relay lens rod 4 terminal surfaces are positioned on the focal plane of the eyepiece group 7 that fixedly installs in the speculum holder 12, and the end that passes light beam 6 is stretched out with cold light source 10 by speculum holder 12 fixedlys connected.
In order to use with easy for installation, guarantee to check inner each situation of slit simultaneously, keep the illumination object point consistent, just can make the work effect can reach best with the imaging object point.Such scheme is for surveying the structure of verify road Inner Front End horizontal direction target, as when wanting to measure duct sidewall direction target, only need pass light beam 6 and image-forming objective lens 3 front end faces glue together respectively equidirectional, get final product with visual field illuminating prism 1 and image formation prism 2.Tail end at speculum holder 12 is provided with the switching bayonet socket in addition, can clamping the shooting adapter, in adapter, be provided with imaging lens group 8 and miniature camera 9, the outlet line of miniature camera 9 is connected with external monitor 11.
Referring to accompanying drawing, in use, only need cold light source 10 is opened, light beam refracts to slot wall through passing after light beam 6 reaches illuminating prism 1, reflex to image formation prism 2 through object or wall, reach image-forming objective lens 3 through image formation prism 2 again, behind relay lens rod 4, image in human eye by eyepiece group 7, or image in the video camera target surface through imaging lens group 8 again, show on monitor by circuit output.Gather photo if desired, can be on the adapter of speculum holder 12 tail ends the clamping camera.
The inventor is by requirement of the present utility model, make the sight glass model machine, its prism clear aperture is 0.6 * 0.6 millimeter a square, after tested, its active length＞80 millimeter, sight glass working portion width is 0.9 * 1.8 millimeter, visual field direction reaches 90 °, field angle is＞60 °, and resolution is 40 pairs of lines per millimeters, image-forming range 0.5-20 millimeter.
Claims (3)
1. Slit speculum, it constitutes and passes light beam (6), and pipe is looked in imaging, sight glass sheath (5), speculum holder (12), eyepiece group (7), cold light source (10), it is characterized in that, described imaging is looked pipe and is adopted the gradient-index lens group, is to be formed by relay lens rod (4) front end gummed image-forming objective lens (3), and biography light beam (6) is looked tube side-by-side with imaging and is glued at, both cemented surfaces are the plane that polishing is cut in the garden, and the light dielectric film is arranged between cemented surface; The gummed back is with sight glass sheath (5) in its periphery, its end is set in the speculum holder (12), and the viewpoint that keeps biography light beam (6) and imaging to look pipe at the sight glass front end face is identical, the interior relay lens rod of speculum holder (12) (4) terminal surface is positioned on the focal plane of the eyepiece group (7) that fixedly installs, and the end of biography light beam (6) is drawn with cold light source (10) by speculum holder (12) and fixedlyed connected.
2. Slit speculum according to claim 1 is characterized in that, the front end of described biography light beam (6) and image-forming objective lens (3) glue together respectively have equidirectional, with the prism (1) and the image formation prism (2) in the visual field.
3. Slit speculum according to claim 1, it is characterized in that, the tail end of described speculum holder (12) is provided with the switching bayonet socket, energy clamping shooting adapter, be provided with imaging lens group (8) and miniature camera (9) in adapter, the outlet line of video camera (9) is connected with external monitor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239647 CN2294467Y (en) | 1997-05-26 | 1997-05-26 | Slit sight glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97239647 CN2294467Y (en) | 1997-05-26 | 1997-05-26 | Slit sight glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2294467Y true CN2294467Y (en) | 1998-10-14 |
Family
ID=33949583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97239647 Expired - Fee Related CN2294467Y (en) | 1997-05-26 | 1997-05-26 | Slit sight glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2294467Y (en) |
-
1997
- 1997-05-26 CN CN 97239647 patent/CN2294467Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |