CN2505027Y - Image collector for digital slit-lamp biological microscope - Google Patents
Image collector for digital slit-lamp biological microscope Download PDFInfo
- Publication number
- CN2505027Y CN2505027Y CN 01275389 CN01275389U CN2505027Y CN 2505027 Y CN2505027 Y CN 2505027Y CN 01275389 CN01275389 CN 01275389 CN 01275389 U CN01275389 U CN 01275389U CN 2505027 Y CN2505027 Y CN 2505027Y
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- lens
- image
- image collector
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- mirror
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- Expired - Fee Related
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- 238000003384 imaging method Methods 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract 1
- 238000011179 visual inspection Methods 0.000 abstract 1
- 210000000695 crystalline len Anatomy 0.000 description 32
- 241000219739 Lens Species 0.000 description 31
- 210000003739 neck Anatomy 0.000 description 6
- 238000005286 illumination Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 231100000915 pathological change Toxicity 0.000 description 2
- 230000036285 pathological change Effects 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 210000002159 anterior chamber Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000004087 cornea Anatomy 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 210000004276 hyalin Anatomy 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- -1 silver halide Chemical class 0.000 description 1
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- Eye Examination Apparatus (AREA)
- Microscoopes, Condenser (AREA)
Abstract
An image collector for digital slit-lamp biological microscope belongs to the medical equipment field. The utility model mainly comprises a microscope receiving the image of the eye under detection, and a movable reflector which not only provides visual inspection for transmission object, but also reflects image of the object, as well as a field lens which receives the incidence images in turn, a reflector, a group of middle lens, an image collector, a computer and an outboard flasher. The image collector in the utility model can be a digital camera or a digital video, wherein, both the reflector and the group of middle lens between the field lens and the image collector can be arranged inside the photoelectrical interface, the reflection socket of which is provided with a reflector turned for 90 degrees anticlockwise compared with the normal imaging optical path, wherein, the lens barrel of the photoelectrical interface is provided with two groups of lenses inside including a group of convex lenses and a group of concave lenses, and the protruding part of the lens of the image collector sticks into the lens barrel of the photoelectrical interface. Additionally, a variable optical attenuator is arranged on the optical path of the outboard flasher, and a linkage device is arranged which synchronize the flashing with the imaging moment. The utility model provided with the middle lenses avoids the need for the image collector to adjust the focus, and conveniently collects the images with high clarity.
Description
One, technical field
This utility model relates to a kind of digital slit lamp biomicroscope image scanner, belongs to medical instruments field.
Two, background technology
Slit lamp biomicroscope is that external ophthalmopathy is checked topmost instrument, the optical section that the ophthalmologist forms by the slit source by different in width and shape is observed the trickle pathological changes of the hyaline tissues such as variation, particularly corneal lens of preocular different depth levels.Take the slit lamp image by the general camera system, taking with the slit lamp by the general camera system is outer eye image after the biological microscope of light source amplifies, come recording picture with the egative film photo of silver halide magenta-sensitive emulsion or the form of lantern slide, so that the state of an illness is studied.
Slit lamp microscope adopts lens that high light is focused on a slit (crack) and removes to shine eye.Preocular medium is transparent to visible light, therefore under the irradiation of slit of illumination, forms an optical section.The inspection that the doctor observes patient's cornea, anterior chamber, crystal etc. by the stereoscopic microscope on the slit lamp microscope.It is mainly used to check preocular pathological changes (position, character, size, the degree of depth).
Typical slit lamp biomicroscope imaging optical path can be described as: halogen light source focuses on the place, crack through two condenser lenss, and the slit of illumination imaging of formation is in tested preocular.High-energy flashlamp is radiated at high brightness slit of illumination moment on the tested eye through the crack light path, the bias light of optical fibers transmission simultaneously.Tested eye through microcobjective and turn to prism become one just as, amplify observation by the order border then.During flash of light, tested eye through microcobjective one tunnel, mobile mirror imaging at the field lens place, then by the photographic lens imaging in 135 slr camera egative film places.The tradition slit lamp biomicroscope take pictures the cycle long, link is many, size is little, preservation and difficult management.
Three, summary of the invention
This utility model on the basis that does not change traditional slit lamp microscope basic structure and observational technique, is transformed the configuration of photograph light path and corresponding device thereof at defective of the prior art, can directly obtain high-resolution digitized picture.
Block diagram 1 is seen in the signal of this utility model scenario-frame, it has comprised the microcobjective 3 that shows tested eye image in the existing slit lamp biomicroscope, both having can be the transmission image provides and tests oneself, but the mobile mirror 5 of reverberation picture again, reach the field lens 6 that receives mobile mirror 5 incident images successively, reflecting mirror 11, image collector 8, and external flash lamp 2.Of the present utility model being characterised in that between reflecting mirror 11 and image collector 8 is provided with intermediate mirror group 12, reflecting mirror 11 and intermediate mirror group 12 can be placed in the optic electric interface 7, this interface is to adopt routine techniques with mirror unit 13, assembly successively with lens barrel 14 extend necks 15 that adopt the black light-proof material to make, wherein reflecting mirror 11 is rotated counterclockwise 90 ° with the conventional imaging light path and is placed on the mirror unit 13, intermediate mirror group 12 places in the lens barrel 14, the camera lens extension of image collector extends in the extend neck, and image collector 8 adopts digital image or video capture device.
Owing to added after the intermediate mirror, make lens barrel elongated, image collector can not be placed in the position of original analog camera, otherwise can influence the use of instrument.Therefore, redesigned reflecting mirror, original imaging light path has been rotated counterclockwise 90 °, reached like this instrument is transformed, the convenient simultaneously purpose of using.Concrete visible Fig. 5.And image collector 8 has adopted digital image/video capture device, can select digital camera or digital camera for use.
This shows that this utility model is on the ophthalmology slit lamp biomicroscope, its light path photography part is transformed, adopt the digital camera video digital signal, import computer, thereby carry out the Flame Image Process of external ophthalmopathy.
Main thought of the present utility model is: transform the general camera shooting light path on the slit lamp, the design optic electric interface, with the analogue camera on the original slit lamp biomicroscope of digital image/video capture device (as digital camera, digital camera) replacement, directly obtain digital picture, the high-definition image that collects is sent to computer by USB interface, so that adopt digital image processing techniques and computer technology that image is carried out Treatment Analysis and storage, management.
Because general digital camera or the imaging unit of digital camera---the area array CCD size is littler than 135 egative films, add intermediate mirror and can guarantee that imaging is all over the screen on CCD, make the picture on the field lens pass through the intermediate mirror imaging simultaneously in the infinity, digital camera or digital camera need not focusing when taking, the convenient use.
This utility model also is provided with optical attenuator 1 in external flash of light light path, guaranteed correct light exposure.Be provided with flash of light and videotape synchronous linkage 4 of moment between flash lamp 2 and image collector 8, related linkage has guaranteed that the instantaneous digital camera or the digital camera shutter of the original external flash lamp flash of light of slit lamp can open synchronously.
Four, description of drawings
Fig. 1: this utility model connects schematic block diagram,
1, optical attenuator, 2, flash lamp, 3, microcobjective, 4, linkage, 5, mobile mirror, 6, field lens, 7, optic electric interface, 8, image collector, 9, computer, 10, tested eye;
Fig. 2: photographic imagery index path of the present utility model,
11, reflecting mirror, 12, the intermediate mirror group, a, inspection personnel estimate direction;
Fig. 3: this utility model optic electric interface structural representation, 13, mirror unit, 14, lens barrel, 15, extend neck;
Fig. 4: intermediate mirror group light path principle sketch map,
16, convex lens group, 17, the concavees lens group;
Fig. 5: contrast sketch map before and after the conversion of reflecting mirror setting angle in this utility model,
18,135 slr cameras in the existing apparatus, 19, former reflecting mirror installation site, 20, reflecting mirror installation site in this utility model.
Five, embodiment
Can adopt routine techniques to be assembled according to shown in Fig. 1,2,3,4,5.During assembling; for protect optic electric interface, guarantee the light path sealing, will be with conventional assembly method fixed lens lens barrel; fixing intake device; also need be equipped with adnexaes such as trim ring, retaining ring, mirror unit, lens barrel, extend neck, screw, support, support, fast doornail, trim ring, retaining ring are used for fixing mirror unit.Battery of lens is housed in the lens barrel, and extend neck is used to hold the extension of harvester camera lens, and lens barrel and extend neck all adopt the black light-proof material to make.Reflecting mirror and battery of lens constitute the major part of optic electric interface.Support and screw are used for fixing image collector.
It is identical with the former camera chain side of elephant field size that crack image extension requires to draw visual visual field, and draw visual resolution and satisfy the high-resolution requirement of computer.The way that this utility model adopts is: pull down photographic lens and reflecting mirror in the original optical path, between reflecting mirror and digital camera or digital camera camera lens, add an intermediate lens that designs voluntarily, receive the light imaging of sending from field lens with digital camera or digital camera.
Claims (4)
1, a kind of slit lamp biomicroscope image scanner, mainly include the microcobjective (3) that receives tested eye image, mobile mirror (5) reaches the field lens of incident image (6) successively, image collector (8) and external flash lamp (2), it is characterized in that to be placed in the optic electric interface (7) at reflecting mirror (11) and intermediate mirror group (12), this interface is to adopt routine techniques with mirror unit (13), assembly successively with lens barrel (14) extend neck 15 that adopts the black light-proof material to make, wherein reflecting mirror (11) and conventional imaging light path are rotated counterclockwise 90 ° and are placed on the mirror unit (13), intermediate mirror group (12) places in the lens barrel (14), the camera lens extension of image collector extends in the extend neck, and image collector (8) adopts digital image or video capture device.
2, slit lamp biomicroscope image scanner according to claim 1, it is characterized in that in external flash of light light path, being provided with optical attenuator (1), between flash lamp (2) and image collector (8), be provided with flash of light and videotape synchronous linkage of moment (4).
3, slit lamp biomicroscope image scanner according to claim 1 is characterized in that the image collector (8) of described employing digital image or video capture device, can select digital camera or digital camera for use.
4, slit lamp biomicroscope image scanner according to claim 1, it is characterized in that described intermediate mirror group (12) is made up of two groups of battery of lens of parallel placement, wherein first group is convex lens (16), second group is concavees lens (17), at least two lens of the number of every group of lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01275389 CN2505027Y (en) | 2001-11-29 | 2001-11-29 | Image collector for digital slit-lamp biological microscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01275389 CN2505027Y (en) | 2001-11-29 | 2001-11-29 | Image collector for digital slit-lamp biological microscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2505027Y true CN2505027Y (en) | 2002-08-14 |
Family
ID=33679833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01275389 Expired - Fee Related CN2505027Y (en) | 2001-11-29 | 2001-11-29 | Image collector for digital slit-lamp biological microscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2505027Y (en) |
-
2001
- 2001-11-29 CN CN 01275389 patent/CN2505027Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020814 Termination date: 20101129 |