CN208756309U - Uniform intensity generator and ophthalmic medical equipment for ophthalmic medical equipment - Google Patents
Uniform intensity generator and ophthalmic medical equipment for ophthalmic medical equipment Download PDFInfo
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- CN208756309U CN208756309U CN201820191408.5U CN201820191408U CN208756309U CN 208756309 U CN208756309 U CN 208756309U CN 201820191408 U CN201820191408 U CN 201820191408U CN 208756309 U CN208756309 U CN 208756309U
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Abstract
A kind of uniform intensity generator and ophthalmic medical equipment for ophthalmic medical equipment provided by the utility model, it can be arranged such that laser beam becomes circular light spot shape by the variation of oblong light spot shape and prevents energy from concentrating the injury to retina by a pair of of prism wedge, the Energy distribution form of laser beam is converted to flat-top by Gaussian Profile by diffraction optical element simultaneously to be uniformly distributed so that the energy being irradiated on retina is uniform, setting plano-concave lens expands into the region area of eyeball.By the effect of above-mentioned uniform intensity generator, so that the light energy uniform irradiation area being irradiated on retina is big, it effectively prevent laser beam energy to concentrate the injury to retina, and the energy stepless action that can be realized irradiation area area significantly improves therapeutic effect.
Description
Technical field
The utility model relates to a kind of for treating the Medical Devices of the ophthalmology diseases such as myopia, amblyopia and macula lutea eye disease,
It relates in particular to a kind of applied to the beam pattern or/and beam energy that can change incident light in ophthalmology disease medical field
The uniform intensity generator of distributional pattern.
Background technique
The eye illnesses such as myopia, amblyopia and macula lutea eye disease are to influence the persistent ailment of human eyesight's health.And the pathology of above-mentioned eye illness
Belong to retinal disease.Numerous studies show, the light of some strength be irradiated on retina can effectively press down axis oculi extend to
The trend that near-sighted direction is developed.And the illumination of some strength can be obviously improved the blood circulation of retina, help improve weak
Depending on and macular disorders.
It is disclosed in a kind of entitled intelligent amblyopia therapeutic equipment of band light brush control function of Publication No. CN107456365
A kind of instrument being used to treat amblyopia using laser beam irradiation human eye portion.It includes single-chip microcontroller, timer, laser, outside
Power supply, current-to-voltage convertor, power governor, light brush, light brush coordinator composition.It can intelligently adjust laser power, full
The purpose of foot therapy amblyopia disease.The problem of above-mentioned technical proposal, is that laser occurred out is its institute of rectilinear beam
The energy hot spot of formation is the hot spot of an oblong shape, and spot center energy is high and peripheral energy is low.If only adjusting
Laser power is saved, the problems in light spot energy collection can not be solved.If instead can to cure eye illness height-regulating laser power
Lead to the excessively high injury retina of spot center energy, and reducing power can make hot spot periphery too low and can not play and control
The purpose for the treatment of.
Further, it has been found that since the light spot energy of laser beam is concentrated, so that entire light beam is irradiated on retina
The Gaussian Profile that central energy is high and peripheral energy is low is presented afterwards.And in practice to improve retina entirety blood circulation,
The energy being irradiated on retina should be uniformly distributed energy, and expand the region area for being irradiated in retina as far as possible.It is existing
The irradiation area area of the laser beam of line of collimation in technology has laser emitter decision, small-sized due to instrument itself
Change the limitation for determining laser beam irradiated area to limitation caused by treatment itself.
Based on the above two o'clock, applicant provides a kind of uniform intensity generator applied to ophthalmic medical equipment, can
It is the energy of incident light is evenly dispersed and expand the region area that is irradiated on retina.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of uniform intensity generation for ophthalmic medical equipment
Device, it is intended that one, the hot spot for the oblong that laser emits can be transformed into circular light spot, prevent hot spot
Central energy concentrates the injury caused to retina；Two, the angle for changing incident eyeball, expands its area for being irradiated in retina
And guarantee the Relatively centralized of energy.
A kind of uniform intensity generator for ophthalmic medical equipment comprising,
Transparent components,
Diffraction optical element,
And lens；
Wherein, the transparent components are made of a pair of of angle of wedge prism, and the angle of wedge prism includes prism one and prism
Two, the right-angle plane of the prism one is arranged in opposite directions with the angle of wedge plane of prism two, so that incident beam is through prism one and rib
Light beam is become round by oval-shaped beam after the refraction of mirror two.
Preferably, the effective focal length EFL (effective focal length) of the diffraction optical element=
100mm, 10~30mm of outer diameter.
Preferably, the diffraction optical element includes matrix, and the matrix surface is equipped with diffraction grating and optics tune
Flood.The diffraction optical element is that the effect of beam-splitting diffraction optical element is that laser beam is become to arbitrary shape, is had
The large spot of even Energy distribution.
Further, the lens are plano-concave lens, effective focal length EFL=-100mm, 10~30mm of outer diameter.Its energy
It is enough to disperse to project after lens reflect by the laser light velocity that line of collimation enters, the irradiated area of eyeball is expanded into, to expand
The irradiated area being irradiated in greatly on retina.
A kind of ophthalmic medical equipment comprising,
Laser generator, uniform intensity generator and plano-concave lens；
Wherein, the laser generator can emit laser beam；
Uniform intensity generator includes that beam pattern changes component；
Wherein,
Laser beam can be turned to circle by elliptical deformation by the beam pattern variation component,
The plano-concave lens can scatter laser beam.
Preferably, the laser generator is laser diode.
Preferably, beam pattern variation component includes a pair of of angle of wedge prism composition, the prism angle of wedge angle
It is 28~35 °, the angle of wedge prism includes prism one and prism two, the wedge of the right-angle plane and prism two of the prism one
Angle plane is arranged in opposite directions, so that incident beam becomes round light beam by oval-shaped beam after the refraction of prism one and prism two.
A kind of ophthalmic medical equipment comprising,
Laser generator, uniform intensity generator and plano-concave lens；
Wherein, the laser generator can emit laser beam；
Uniform intensity generator includes that beam pattern changes component and beam energy transform component；
Wherein,
Laser beam can be turned to circle by elliptical deformation by the beam pattern variation component,
The energy of laser beam can be transformed into flat-top by Gaussian Profile and uniformly divided by the beam energy transform component
Cloth,
The plano-concave lens can scatter laser beam.
Preferably, the beam energy transform component that spreads out is diffraction optical element, and the diffraction optical element includes
Matrix, the matrix surface are equipped with diffraction grating and optical adjustment layer, the effective focal length EFL=of the diffraction optical element
100mm, 10~30mm of outer diameter.
It preferably, further include light intensity regulating structure and power limited structure.
The utility model obtain beneficial effect be, a kind of uniform intensity generator applied to treatment of eye disorders,
It can be arranged such that laser beam becomes circular hot spot shape by the variation of oblong light spot shape by a pair of of prism wedge
Shape places injury of the energy concentration to retina, while passing through diffraction optical element for the Energy distribution form of laser beam by Gauss
Distribution is converted to flat-top and is uniformly distributed so that the energy being irradiated on retina is uniform, and setting plano-concave lens expands into eyeball
Region area.By the effect of above-mentioned uniform intensity generator, so that the light energy uniform irradiation face being irradiated on retina
Product is big, effectively prevent laser beam energy to concentrate the injury to retina, and the energy that can be realized irradiation area area is uniformly made
With significantly improving therapeutic effect.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described.
Attached drawing 1 is the structural schematic diagram of uniform intensity generator in the utility model.
Appended drawing reference:
1. 4. plano-concave lens of prism one 2. prism, 2 3. diffraction optical element, 5. eyeball
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
Embodiment 1.
A kind of uniform intensity generator is applied among treatment of eye disorders equipment, such as therapeutic instrument for shortsightedness, amblyopia treatment
Instrument etc..The uniform intensity generator includes at least prism 1 and prism 22, and the prism 1 and prism 22 are
Angle of wedge prism, and the angle of wedge angle is 30 °, incident light is by the angle of wedge face of prism 1 through passing through prism 22 after superrefraction
Right-angle surface be turned into circular light spot in the hot spot for the oblong for making laser beam through superrefraction.
Then laser beam is beam-splitting diffraction optical element passing through diffraction optical element 3, the diffraction optical element 3,
It includes matrix and the optical adjustment layer that is set on matrix.The diffraction optical element 3 can be by the height of laser beam energy
This distributional pattern is transformed to flat-top and is uniformly distributed form, so that the energy of laser beam is uniform.
Then, laser beam by by plano-concave lens 4 scattered radiation in 5 surface of eyeball, using the refractive illumination of eyeball 5
In on retina.
Embodiment 2.
A kind of ophthalmic medical equipment of uniform intensity generator described in Application Example 1 can treat myopia, amblyopia with
And macula lutea eye disease.
It includes,
Laser generator, uniform intensity generator and plano-concave lens；
Wherein, the laser generator can emit laser beam；
Uniform intensity generator includes that beam pattern changes component and beam energy transform component；
Wherein,
Laser beam can be turned to circle by elliptical deformation by the beam pattern variation component,
The energy of laser beam can be transformed into flat-top by Gaussian Profile and uniformly divided by the beam energy transform component
Cloth,
The plano-concave lens can scatter laser beam.
Described, diffraction optical element includes matrix, and the matrix surface is equipped with diffraction grating and optical adjustment layer, institute
The effective focal length EFL=100mm for the diffraction optical element stated, 10~30mm of outer diameter.
It further include light intensity regulating structure and power limited structure.
The above description of embodiment disclosed in the utility model makes professional and technical personnel in the field can be realized or use
The utility model.Various modifications to these embodiments will be readily apparent to those skilled in the art, this
General Principle defined in text can without departing from the spirit or scope of the present utility model, in other embodiments
It realizes.Therefore, the present invention will not be limited to the embodiments shown herein, and be to fit to it is disclosed herein
Principle and the consistent widest scope of features of novelty.
Claims (7)
1. a kind of uniform intensity generator for ophthalmic medical equipment, which is characterized in that it includes,
Transparent components,
Diffraction optical element,
And lens；
Wherein, the transparent components are made of a pair of of angle of wedge prism, and the angle of wedge prism includes prism one and prism two, institute
The right-angle plane for the prism one stated arranges in opposite directions with the angle of wedge plane of prism two, so that incident beam is through prism one and prism two
Light beam is become round by oval-shaped beam after refraction.
2. a kind of uniform intensity generator for ophthalmic medical equipment according to claim 1, which is characterized in that described
Diffraction optical element effective focal length EFL=100mm, 10~30mm of outer diameter.
3. a kind of uniform intensity generator for ophthalmic medical equipment according to claim 1 or 2, feature exist
In the lens are plano-concave lens, effective focal length EFL=-100mm, 10~30mm of outer diameter.
4. a kind of ophthalmic medical equipment, which is characterized in that it includes,
Laser generator, uniform intensity generator and plano-concave lens；
Wherein, the laser generator can emit laser beam；
Uniform intensity generator includes that beam pattern changes component；
Wherein,
Laser beam can be turned to circle by elliptical deformation by the beam pattern variation component,
The plano-concave lens can scatter laser beam.
5. a kind of ophthalmic medical equipment according to claim 4, which is characterized in that the laser generator is laser two
Pole pipe.
6. a kind of ophthalmic medical equipment according to claim 4 or 5, which is characterized in that the beam pattern variation
Component includes a pair of of angle of wedge prism composition, and the prism angle of wedge angle is 28~35 °, and the angle of wedge prism includes prism one
With prism two, the right-angle plane of the prism one is arranged in opposite directions with the angle of wedge plane of prism two, so that incident beam is through prism
One and prism two refraction after light beam become round by oval-shaped beam.
7. a kind of ophthalmic medical equipment, which is characterized in that it includes,
Laser generator, uniform intensity generator and plano-concave lens；
Wherein, the laser generator can emit laser beam；
Uniform intensity generator includes that beam pattern changes component and beam energy transform component；
Wherein,
Laser beam can be turned to circle by elliptical deformation by the beam pattern variation component,
The energy of laser beam can be transformed into flat-top by Gaussian Profile and is uniformly distributed by the beam energy transform component,
The plano-concave lens can scatter laser beam.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820191408.5U CN208756309U (en) | 2018-02-05 | 2018-02-05 | Uniform intensity generator and ophthalmic medical equipment for ophthalmic medical equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820191408.5U CN208756309U (en) | 2018-02-05 | 2018-02-05 | Uniform intensity generator and ophthalmic medical equipment for ophthalmic medical equipment |
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| CN208756309U true CN208756309U (en) | 2019-04-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114767057A (en) * | 2022-06-20 | 2022-07-22 | 华南师范大学 | Intelligent projection light supplementing method and device for posterior pole parts of eyegrounds of different individuals |
-
2018
- 2018-02-05 CN CN201820191408.5U patent/CN208756309U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114767057A (en) * | 2022-06-20 | 2022-07-22 | 华南师范大学 | Intelligent projection light supplementing method and device for posterior pole parts of eyegrounds of different individuals |
| CN114767057B (en) * | 2022-06-20 | 2022-09-30 | 华南师范大学 | Intelligent projection light supplementing method and device for posterior pole parts of eyeground of different individuals |
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