CN208435623U - A kind of iris and pupil image lighting system - Google Patents
A kind of iris and pupil image lighting system Download PDFInfo
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- CN208435623U CN208435623U CN201721163534.1U CN201721163534U CN208435623U CN 208435623 U CN208435623 U CN 208435623U CN 201721163534 U CN201721163534 U CN 201721163534U CN 208435623 U CN208435623 U CN 208435623U
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- lens barrel
- lens
- spectroscope
- iris
- infrared light
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Abstract
The utility model discloses a kind of irises and pupil image lighting system comprising lens barrel, lighting source, infrared light supply and infrared optical inductor；Lens barrel includes the first lens barrel, the second lens barrel and third lens barrel, is connect wherein the first lens barrel and third lens barrel are vertical with the second lens barrel respectively；Filter and the first diffusing reflection plate are provided in first lens barrel, one end of the first lens barrel offers illuminating bundle entrance；The second diffusing reflection plate, the first spectroscope, aperture, the second spectroscope, collector lens group are provided in second lens barrel, one end of the second lens barrel offers infrared light entrance, infrared light detection mouth is offered on side wall；Third spectroscope and object lens are provided in third lens barrel, third lens barrel one end offers observation port, and the other end offers shooting mouth.The iris and pupil image lighting system illuminate iris and pupil in a manner of coaxial-illuminating, with simple, the easy to operate feature of structure.
Description
Technical field
The utility model relates to technical field of medical equipment more particularly to a kind of iris and pupil image lighting systems.
Background technique
Currently, funduscopy is mostly the eyes for the naked eye passing through traditional direct ophthalmoscopy patient by doctor, both do not had
Objective contrast effect, it is also difficult to carry out information filing management.Therefore it in order to improve Checking on effect, is generally clapped using capture apparatus
Fundus photograph is taken the photograph, the mode of the photo analysis conditions of patients then obtained according to shooting.
But the lighting apparatus of traditional shooting fundus photograph is due to using non-coaxial illumination, illumination path and observation
Optical path has a drift angle, causes illumination uniformity poor, and observable angle is small, and overview angle is 30 degree or so, while non-same
Axis illumination also causes traditional ophthalmoscope that must use in the state that pupil is larger, therefore generally requires patient when checking and make to expand
Pupil could check that this undoubtedly makes checking process become more complicated.Therefore traditional lighting apparatus is not able to satisfy eyeground photograph
The lighting demand of piece shooting process.
Utility model content
Place in view of the above-mentioned deficiencies in the prior art, the application provide a kind of iris and pupil image illumination system
System, the iris and pupil image lighting system illuminate iris and pupil in a manner of coaxial-illuminating, have structure simple,
Feature easy to operate.
The iris and pupil image lighting system include: lens barrel, lighting source, infrared light supply and infrared optical inductor；
The lens barrel includes the first lens barrel, the second lens barrel and third lens barrel, wherein first lens barrel and the third mirror
Cylinder is vertical with second lens barrel respectively to be connect；
Filter and the first diffusing reflection plate are disposed in first lens barrel from right to left, first lens barrel is close to institute
The one end for stating filter offers illuminating bundle entrance, and the lighting source is directed at the illuminating bundle entrance；
The second diffusing reflection plate, the first spectroscope, aperture, the second light splitting are disposed in second lens barrel from bottom to up
Mirror, collector lens group, second lens barrel offers infrared light entrance close to one end of the second diffusing reflection plate, described infrared
Light source is located at the infrared light entrance, opens up on the side wall of second lens barrel along described second spectroscopical reflection light direction
There is infrared light detection mouth, the infrared optical inductor is directed at the infrared light detection mouth；
Third spectroscope and object lens are disposed in the third lens barrel from right to left, the third lens barrel is close to described
One end of object lens offers observation port, offers shooting mouth close to the spectroscopical one end of the third；
The collector lens group includes the first lens, the second lens and the third lens of same optical axis setting, and described first thoroughly
The front focal plane of the back focal plane of mirror and second lens is overlapped, the back focal plane of second lens and the preceding coke of the third lens
Face is overlapped.
Optionally, the object lens are plano-convex lens.
Optionally, first spectroscope, the second spectroscope and third spectroscope are respectively by two isosceles right triangles
Transparent prism gluing forms, and the translucent reflectance coating being coated on the face of isosceles right triangle prism 45° angle.
Optionally, the aperture is the fixed aperture with fixed circular hole.
Optionally, the first diffusing reflection plate and the second diffusing reflection plate are transparent focussing glass.
Optionally, the lighting source is LED light.
The iris and pupil image lighting system of the utility model, can be with by setting infrared light supply and infrared optical inductor
The eyes of patient are aligned.The eyes of patient can be illuminated after the completion of alignment by lighting source, and
The iris and pupil image lighting system are by the way of coaxial-illuminating, therefore illumination uniformity is preferable, and observable angle is larger,
Consequently facilitating the iris and pupil to patient carry out shooting inspection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of iris provided by the embodiment of the utility model and pupil image lighting system.
Description of symbols:
1: the first lens barrel, 11: filter, 12: diffusing reflection plate, 2: the second lens barrels,
21: the second diffusing reflection plates, 22: the first spectroscopes, 23: aperture, 24: the second spectroscopes,
25: the first lens, 26: the second lens, 27: the third lens, 3: third lens barrel,
31: third spectroscope, 32: object lens, 4: lighting source, 5: infrared light supply, 6: eyes.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model
Apply example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all
Belong to the range of the utility model protection.
Referring to Fig. 1, Fig. 1 shows the iris of the utility model and the structure chart of pupil image lighting system, the iris
It is specifically included with pupil image lighting system: lens barrel, lighting source 4, infrared light supply 5 and infrared optical inductor 7；
Wherein, lens barrel includes the first lens barrel 1, the second lens barrel 2 and third lens barrel 3, wherein the first lens barrel 1 and third lens barrel 3
It is vertical with the second lens barrel 2 respectively to connect namely the first lens barrel 1, the second lens barrel 2 and the composition of third lens barrel 3 one are similar to periscope
Structure.
It is disposed with filter 11 and the first diffusing reflection plate 12 from right to left in the first lens barrel 1, and the first lens barrel 1 leans on
One end of nearly filter 11 offers illuminating bundle entrance, and lighting source 4 is directed at illuminating bundle entrance, for into the first lens barrel 1
Emit illuminating bundle, can be LED light.The illuminating bundle that wherein filter 11 is used to issue lighting source 4 is filtered, with
Just unwanted wavelength is filtered out, the first diffusing reflection plate 12 is transparent focussing glass, for illuminating bundle diffusing reflection to be gone out.
The second diffusing reflection plate 21, the first spectroscope 22, aperture 23, second are disposed in second lens barrel 2 from bottom to up
Spectroscope 24, collector lens group, and the second lens barrel 2 offers infrared light entrance close to one end of the second diffusing reflection plate 21, it is red
Outer light source 5 is directed at infrared light entrance, for emitting infrared light into the second lens barrel 2, along second point on the side wall of the second lens barrel 2
The reflection light direction of light microscopic 24 offers infrared light detection mouth, and infrared optical inductor 7 is directed at infrared light detection mouth, red for incuding
UV light is a common electronic equipment, therefore details are not described herein its structure and principle.
Wherein the second diffusing reflection plate 21 is transparent focussing glass, the infrared light diffusing reflection for emitting infrared light supply 5
It goes out.First spectroscope 22 and the second spectroscope 24, which all have, makes the 90 ° of reflections of incident ray a part, the spy that a part penetrates
Property, and the first spectroscope 22 and the second spectroscope 24 are formed by two isosceles right triangle transparent prism gluings respectively, and
The translucent reflectance coating being coated on the face of isosceles right triangle prism 45° angle.And the effect of aperture 23 is to incident light
The brightness of beam is adjusted, and since infrared light supply 5 and lighting source 4 are the stable light source of light emission luminance, the light
Circle 23 can be the fixed aperture with fixed circular hole, can be obtained by the light beam of meet demand by the aperture 23.
And the effect of collector lens group be to incident beam carry out optically focused comprising with optical axis setting the first lens 25,
Second lens 26 and the third lens 27, wherein the front focal plane of the back focal plane of the first lens 25 and the second lens 26 is overlapped, second thoroughly
The back focal plane of mirror 26 and the front focal plane of the third lens 27 are overlapped.
Third spectroscope 31 and object lens 32 are disposed in third lens barrel 3 from right to left, and third lens barrel 3 is close to object
One end of mirror 32 offers observation port, and one end close to third spectroscope 31 offers shooting mouth.Wherein third spectroscope 31 is used
In making the 90 ° of reflections of incident ray a part, a part is penetrated, is formed by two isosceles right triangle transparent prism gluings,
And the translucent reflectance coating being coated on the face of isosceles right triangle prism 45° angle.And object lens 32 are then saturating for a plano-convex
Mirror is used to be focused incident ray, so that the eyes 6 to patient are irradiated.
In use, lens barrel, lighting source 4, infrared light supply 5 and infrared optical inductor 7 are separately fixed on monitor station.Patient
By eyes 6 close to the observation port of third lens barrel 3, infrared light supply 5 is opened at this time, and the infrared light that infrared light supply 5 issues successively penetrates
After diffusing reflection plate 21, the first spectroscope 22, aperture 23, the second spectroscope 24, collector lens group, by the anti-of third spectroscope 31
After penetrating, object lens 32 are incident on, and are projected after the focusing of object lens 32 from observation port, are observed at this time when the eyes of patient 6 are aligned
When mouth, eyes 6 can go back incident infrared reflection, after the infrared ray after reflection penetrates object lens 32, through third spectroscope 31
Reflection after through collector lens group be incident on the second spectroscope 24, and by the reflection of the second spectroscope 24 from the second lens barrel 2
Infrared light detection mouth project, by be located at infrared light detection mouth at infrared optical inductor 7 detect.Therefore work as infrared photoinduction
When device 7 can detecte infrared light, then the observation port that eyes 6 have been aligned on third lens barrel 3 is proved, eyes 6 can be shone
It is bright to operate.
When illumination, lighting source 4 is opened, the illuminating bundle that lighting source 4 emits successively penetrates filter 11 and first and overflows instead
After penetrating plate 12, after the reflection of the first spectroscope 22, successively through aperture 23, the second spectroscope 24, after collector lens group, through the
Object lens 32 are injected after the reflection of three spectroscopes 31, and are injecting eyes 6 after the focusing of object lens 32, the light beam that then eyes 6 reflect
After successively penetrating object lens 32 and third spectroscope 31, projected from the shooting mouth of third lens barrel 3.It is arranged one at the shooting mouth at this time
Camera 8, so that it may complete the shooting to the iris and pupil of eyes 6.
The iris and pupil image lighting system of the present embodiment, can be right by setting infrared light supply and infrared optical inductor
The eyes of patient are aligned.The eyes of patient can be illuminated after the completion of alignment by lighting source, and should
Iris and pupil image lighting system are by the way of coaxial-illuminating, therefore illumination uniformity is preferable, and observable angle is larger, from
And convenient for carrying out shooting inspection to the iris and pupil of patient.
It should be noted that, in this document, the appearance of " first ", " second ", it is only for make distinguish technical term and
Description is convenient, should not be construed as the restriction to the utility model embodiment.The terms "include", "comprise" or its any other change
Body is intended to non-exclusive inclusion, so that process, method, article or terminal device including a series of elements are not
Only include those elements, but also including other elements that are not explicitly listed, or further include for this process, method,
Article or the intrinsic element of terminal device.In the absence of more restrictions, being limited by sentence "including a ..."
Element, it is not excluded that including identical being wanted in the process, method of the element, article or terminal device there is also other
Element.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field
Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model,
Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (6)
1. a kind of iris and pupil image lighting system, which is characterized in that the iris and pupil image lighting system include: mirror
Cylinder, lighting source (4), infrared light supply (5) and infrared optical inductor (7)；
The lens barrel includes the first lens barrel (1), the second lens barrel (2) and third lens barrel (3), wherein first lens barrel (1) and institute
State that third lens barrel (3) is vertical with second lens barrel (2) respectively to be connect；
It is disposed with filter (11) and the first diffusing reflection plate (12), first mirror from right to left in first lens barrel (1)
Cylinder (1) offers illuminating bundle entrance close to the one end of the filter (11), and the lighting source (4) is directed at the illuminating bundle
Entrance；
It is disposed with the second diffusing reflection plate (21), the first spectroscope (22), aperture from bottom to up in second lens barrel (2)
(23), the second spectroscope (24), collector lens group, second lens barrel (2) is close to one end of the second diffusing reflection plate (21)
Infrared light entrance is offered, the infrared light supply (5) is directed at the infrared light entrance, edge on the side wall of second lens barrel (2)
The reflection light direction of second spectroscope (24) offers infrared light detection mouth, described in infrared optical inductor (7) alignment
Infrared light detection mouth；
It is disposed with third spectroscope (31) and object lens (32), the third lens barrel from right to left in the third lens barrel (3)
(3) one end close to the object lens (32) offers observation port, and one end close to the third spectroscope (31) offers shooting
Mouthful；
The collector lens group includes the first lens (25), the second lens (26) and the third lens (27) of same optical axis setting, institute
The front focal plane of the back focal plane and second lens (26) of stating the first lens (25) is overlapped, the back focal plane of second lens (26)
It is overlapped with the front focal plane of the third lens (27).
2. iris as described in claim 1 and pupil image lighting system, which is characterized in that the object lens (32) are that plano-convex is saturating
Mirror.
3. iris as described in claim 1 and pupil image lighting system, which is characterized in that first spectroscope (22),
Second spectroscope (24) and third spectroscope (31) are formed by two isosceles right triangle transparent prism gluings respectively, and
The translucent reflectance coating being coated on the face of isosceles right triangle prism 45° angle.
4. iris as described in claim 1 and pupil image lighting system, which is characterized in that the aperture (23) is with solid
Determine the fixed aperture of circular hole.
5. iris as described in claim 1 and pupil image lighting system, which is characterized in that the first diffusing reflection plate (12)
It is transparent focussing glass with the second diffusing reflection plate (21).
6. iris as described in claim 1 and pupil image lighting system, which is characterized in that the lighting source (4) is LED
Lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721163534.1U CN208435623U (en) | 2017-09-12 | 2017-09-12 | A kind of iris and pupil image lighting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721163534.1U CN208435623U (en) | 2017-09-12 | 2017-09-12 | A kind of iris and pupil image lighting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208435623U true CN208435623U (en) | 2019-01-29 |
Family
ID=65095572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721163534.1U Active CN208435623U (en) | 2017-09-12 | 2017-09-12 | A kind of iris and pupil image lighting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208435623U (en) |
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2017
- 2017-09-12 CN CN201721163534.1U patent/CN208435623U/en active Active
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