CN202568204U - Streak retinoscope - Google Patents
Streak retinoscope Download PDFInfo
- Publication number
- CN202568204U CN202568204U CN201220141646.8U CN201220141646U CN202568204U CN 202568204 U CN202568204 U CN 202568204U CN 201220141646 U CN201220141646 U CN 201220141646U CN 202568204 U CN202568204 U CN 202568204U
- Authority
- CN
- China
- Prior art keywords
- light
- polarized light
- optical axis
- black
- lighting optical
- 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 - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 36
- 210000004087 cornea Anatomy 0.000 claims abstract description 16
- 238000003384 imaging method Methods 0.000 claims abstract description 10
- VQLYBLABXAHUDN-UHFFFAOYSA-N bis(4-fluorophenyl)-methyl-(1,2,4-triazol-1-ylmethyl)silane;methyl n-(1h-benzimidazol-2-yl)carbamate Chemical compound C1=CC=C2NC(NC(=O)OC)=NC2=C1.C=1C=C(F)C=CC=1[Si](C=1C=CC(F)=CC=1)(C)CN1C=NC=N1 VQLYBLABXAHUDN-UHFFFAOYSA-N 0.000 claims description 30
- 238000005286 illumination Methods 0.000 claims description 6
- 230000010287 polarization Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002985 plastic film Substances 0.000 claims description 3
- 229910052724 xenon Inorganic materials 0.000 claims description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 3
- 230000008033 biological extinction Effects 0.000 abstract description 2
- 230000001131 transforming effect Effects 0.000 abstract 2
- 230000004313 glare Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000029091 Refraction disease Diseases 0.000 description 1
- 230000004430 ametropia Effects 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014733 refractive error Diseases 0.000 description 1
Images
Landscapes
- Eye Examination Apparatus (AREA)
Abstract
The utility model relates to a streak retinoscope. A zonal light source capable of generating non-polarized light, a transmitting mirror capable of transforming the non-polarized light into P and S polarized light, a polarizing film, and a light splitter capable of reflecting the S polarized light and projecting the P polarized light are sequentially arranged along the lighting optical axis; a black brightness enhancement film group is arranged behind the light splitter along the lighting optical axis, and comprises a brightness enhancement wave plate capable of transforming P polarized light into S polarized light and a black extinction film capable of absorbing P polarized light which is not transformed by the brightness enhancement wave plate, which are sequentially arranged; and an included angle of 45-55 degrees is formed between the plane where the black brightness enhancement film group is positioned and the lighting optical axis. The streak retinoscope improves the utilization rate of light energy and increases the contrast of illuminance and streak light imaging; meanwhile, the black brightness enhancement film group absorbs stray light inside an instrument and reduces the reflection of light of the detected cornea, so that a ribbon filament image observed by a doctor is clear and high in contrast.
Description
Technical field
this utility model relates to photoelectric lighting and Display Technique field, particularly relates to a kind of streak retinoscope.
Background technology
streak retinoscope is an instrument of measuring people's ametropia and axis of astigmatism, wherein is provided with the imaging and the lamp optical system that form banded light.At present; Banded gloss in the existing streak retinoscope is carried out to the picture illumination with the filament of the electric filament lamp of high brightness; Its shortcoming is that the utilization ratio of optical energy of light source is not high, and because the veiling glare of instrument internal and the reflective influence of cornea of detected person's eye make that filament imaging border is clear inadequately; Poor contrast, the accuracy of influence observation.
Summary of the invention
The utilization ratio of optical energy that
this utility model purpose provides a kind of light source is high, banded photoimaging sharpness of border, good contrast, the cornea of detected person's eye reflective with veiling glare instrument internal eliminate streak retinoscope preferably.
For achieving the above object, the technical scheme that this utility model adopts is:
a kind of streak retinoscope; Be used for imaging illumination to those who are investigated's cornea; It is along being disposed with the band light source that can produce non-polarization light on the direction of lighting optical axis, can converting non-polarization light to the diaphotoscope of P, S polarized light, the light splitting piece that plays polaroid and can reflect S polarized light, projection P polarized light; Along the direction of described lighting optical axis, be positioned at described light splitting piece rear and be provided with the black-film group of adding lustre to; The described black-film group of adding lustre to comprise set gradually can with the P polarized light convert to the S polarized light the wave plate that adds lustre to, can absorb not the delustring black-film of the P polarized light of being changed by the described wave plate that adds lustre to, described plane and the described lighting optical axis that adds lustre to black-film group place is 45-55 degree angle.
preferably, the direction of the observation optical axis that edge and described lighting optical axis are perpendicular is provided with analyser plate, the plane and the described observation optical axis at described analyser plate place are perpendicular.
preferably, described light splitting piece becomes 40-55 degree angle with described lighting optical axis.
preferably, the plane and the described lighting optical axis at described polarizing plate place are perpendicular.
preferably, described light splitting piece can be replaced by illuminator with holes.
preferably, the material of the described black-film group of adding lustre to is coating film on glass sheet or plastic sheet.
preferably, described band light source is electric filament lamp or LED lamp or xenon lamp or Halogen light.
Because the technique scheme utilization, this utility model compared with prior art has advantage:
The streak retinoscope of
this utility model has added add lustre to wave plate and delustring black-film in illumination imaging systems; Improved the utilization rate of light energy; Increased the contrast of illuminance and banded photoimaging; The black-film group of adding lustre to simultaneously also the inner veiling glare of absorbing apparatus with reduce the reflective of cornea to be detected, make ribbon filament that the doctor observes as clear, good contrast.
Description of drawings
Accompanying drawing 1 is the structural representation of present embodiment one;
Accompanying drawing 2 is the structural representation of present embodiment two;
accompanying drawing 3 is the fundamental diagram of this utility model streak retinoscope.
Wherein 1, band light source; 2, projectoscope; 3, polarizing plate; 4, light splitting piece; 4a, illuminator with holes; 5, the wave plate that adds lustre to; 6, delustring black-film; 7, analyser plate; 01, the black-film group of adding lustre to;
AB, lighting optical axis; BM, observation optical axis;
M, cornea; P, P polarized light; S, S polarized light; FP, non-polarized light.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment this utility model is further described:
Embodiment one:
a kind of streak retinoscope as shown in Figure 1; Be used for being imaged onto cornea to the ribbon filament illumination; Supply doctor's observation; It is along being disposed with the band light source 1 that can produce non-polarization light, can converting non-polarization light to the diaphotoscope 2 of P, S polarized light, the light splitting piece 4 that plays polaroid 3 and can reflect S polarized light, projection P polarized light, wherein on the direction of lighting optical axis: band light source 1 can be any one of electric filament lamp or LED lamp or xenon lamp or Halogen light etc.; The plane and the lighting optical axis AB at polarizing plate 3 places are perpendicular; Light splitting piece 4 and lighting optical axis AB are in angle of 45 degrees.
wherein: along the direction of lighting optical axis AB, be positioned at light splitting piece 4 rears and be provided with the black-film group 01 of adding lustre to; The black-film group 01 of adding lustre to comprise set gradually can with the P polarized light convert to the S polarized light the wave plate 5 that adds lustre to, can absorb not the delustring black-film 6 of the P polarized light of being changed by the wave plate 5 that adds lustre to; And the plane at the black-film group of adding lustre to 01 place and lighting optical axis AB are 50 degree angles, and the material of the black-film group 01 of adding lustre to can be coating film on glass sheet or plastic sheet.
in addition, the direction of the observation optical axis BM that edge and lighting optical axis AB are perpendicular is provided with analyser plate 7, the plane at analyser plate 7 places is perpendicular with observation optical axis BM.The non-polarized light FP that band light source 1 produces becomes P behind projectoscope 2, polarizing plate 3, the S polarized light projects on the light splitting piece 4; To cornea M to be detected, the doctor observes through analyser plate 7, light splitting piece 4 S polarized light wherein by light splitting piece 4 catoptric imagings.
Below the concrete operation principle of setting forth this utility model:
are as shown in Figure 3; The non-polarized light FP of band light source 1 becomes P behind projectoscope 2, polarizing plate 3, the S polarized light projects on the light splitting piece 4, and S polarized light is wherein gone up to cornea M to be detected by light splitting piece 4 catoptric imagings and supplied observation, simultaneously; P polarized light wherein is transmitted on the wave plate 5 that adds lustre to of the black-film group 01 of adding lustre to through light splitting piece 4; The wave plate 5 that adds lustre to is wave plates of a slice 1/2 wavelength, because phase contrast 1/2 wavelength of P light and S light, passes through the wave plate 5 that adds lustre to and is converted into the S polarized light and projects on the cornea M to be detected so see through the P polarized light of light splitting piece 4; Strengthen light efficiency, improved the utilization rate of banded light energy; Be provided with analyser plate 7 with the vertical observation optical axis of lighting optical axis AB BM on the light splitting piece 4; Its plane is vertical with observation optical axis BM; The doctor is through the polarising S polarized light on analyser plate 7, the light splitting piece 4 observation cornea M; Make the ribbon filament that observes as clear, light efficiency improves, and the black-film of delustring simultaneously 6 is gone back inner veiling glare of absorbing apparatus and the reflective good contrast that makes that reduces cornea to be detected.
Embodiment two:
a kind of streak retinoscope as shown in Figure 2; The structure of present embodiment and embodiment one are basic identical; Difference is; Be positioned at light splitting piece 4 on the lighting optical axis AB and can use illuminator 4a with holes to replace, the non-polarized light FP of ribbon filament light source 1 through become P behind projectoscope 2, the polarizing plate 3, the S polarized light projects on the illuminator 4a with holes, S polarized light is wherein gone up to cornea M to be detected by the annular reflective surface catoptric imaging of illuminator 4a with holes and is supplied observation; P, S polarized light are transmitted on the wave plate 5 that adds lustre to of the black-film group 01 of adding lustre to through the centre bore of illuminator 4a with holes simultaneously; S polarized light is wherein transferred to the S polarized light by the wave plate 5 that adds lustre to and projects on the cornea M to be detected, has improved the utilization rate of light energy, and the P polarized light is absorbed by delustring black-film 6.
The polarized light of the illumination of
this utility model streak retinoscope imaging adds lustre to, extinction coefficient also is applicable to other medical examination instruments, such as ophthalmoscope etc.
the foregoing description is only for explaining the technical conceive and the characteristics of this utility model; Its purpose is to let the personage who is familiar with this technology can understand content of this utility model and enforcement according to this, can not limit the protection domain of this utility model with this.All equivalences of being done according to this utility model spirit change or modify, and all should be encompassed within the protection domain of this utility model.
Claims (7)
1. streak retinoscope; Be used for imaging illumination to those who are investigated's cornea; It is along being disposed with the band light source that can produce non-polarization light on the direction of lighting optical axis, can converting non-polarization light to the diaphotoscope of P, S polarized light, the light splitting piece that plays polaroid and can reflect S polarized light, projection P polarized light; It is characterized in that: along the direction of described lighting optical axis, be positioned at described light splitting piece rear and be provided with the black-film group of adding lustre to; The described black-film group of adding lustre to comprise set gradually can with the P polarized light convert to the S polarized light the wave plate that adds lustre to, can absorb not the delustring black-film of the P polarized light of being changed by the described wave plate that adds lustre to, described plane and the described lighting optical axis that adds lustre to black-film group place is 45-55 degree angle.
2. a kind of streak retinoscope according to claim 1 is characterized in that: the direction of the observation optical axis that edge and described lighting optical axis are perpendicular is provided with analyser plate, and the plane and the described observation optical axis at described analyser plate place are perpendicular.
3. a kind of streak retinoscope according to claim 1 is characterized in that: described light splitting piece becomes 40-55 degree angle with described lighting optical axis.
4. a kind of streak retinoscope according to claim 1 is characterized in that: the plane and the described lighting optical axis at described polarizing plate place are perpendicular.
5. a kind of streak retinoscope according to claim 1 is characterized in that: described light splitting piece can be replaced by illuminator with holes.
6. a kind of streak retinoscope according to claim 1 is characterized in that: the material of the described black-film group of adding lustre to is coating film on glass sheet or plastic sheet.
7. a kind of streak retinoscope according to claim 1 is characterized in that: described band light source is electric filament lamp or LED lamp or xenon lamp or Halogen light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220141646.8U CN202568204U (en) | 2012-04-06 | 2012-04-06 | Streak retinoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220141646.8U CN202568204U (en) | 2012-04-06 | 2012-04-06 | Streak retinoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202568204U true CN202568204U (en) | 2012-12-05 |
Family
ID=47237668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220141646.8U Expired - Lifetime CN202568204U (en) | 2012-04-06 | 2012-04-06 | Streak retinoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202568204U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106551675A (en) * | 2015-09-30 | 2017-04-05 | 苏州速迈医疗设备有限公司 | A kind of binocular indirect ophthalmoscope with polarization function |
| CN108205190A (en) * | 2016-12-19 | 2018-06-26 | 徕卡仪器（新加坡）有限公司 | For reducing the microscope of mirror-reflection or endoscope assembly and method |
-
2012
- 2012-04-06 CN CN201220141646.8U patent/CN202568204U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106551675A (en) * | 2015-09-30 | 2017-04-05 | 苏州速迈医疗设备有限公司 | A kind of binocular indirect ophthalmoscope with polarization function |
| CN108205190A (en) * | 2016-12-19 | 2018-06-26 | 徕卡仪器（新加坡）有限公司 | For reducing the microscope of mirror-reflection or endoscope assembly and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9348139B2 (en) | Open-type head mount display device and display method thereof | |
| WO2009001458A1 (en) | Ophthalmic inspection device | |
| JP2009544048A5 (en) | ||
| GB2484876A (en) | Ophthalmologic photographing apparatus and camera for use in ophthalmologic photographing | |
| CN104460002B (en) | It is wearable to look squarely optical system | |
| CN108919496A (en) | The low-power consumption HUD system of solar radiation protection | |
| CN203465469U (en) | Wearable horizontal optical system | |
| CN202568204U (en) | Streak retinoscope | |
| US20140071401A1 (en) | Retinoscope | |
| CN101021674A (en) | LCD stereo projector polarization management system | |
| CN110646942A (en) | Ultrathin optical amplification module and application thereof | |
| TW201513827A (en) | Portable pupil detecting device of multi-band stimulating light and infrared ray's illumination | |
| CN203275774U (en) | Simple perspective LCOS optical eyepiece | |
| TWM352055U (en) | Image projection and capture apparatus | |
| CN104406937A (en) | Optical system for measuring retro-reflecting coefficient | |
| CN206400247U (en) | A kind of CF LCOS lamp optical systems | |
| CN201006197Y (en) | Target indicating device of laser medical instrument | |
| CN102885607B (en) | Eye imaging system and method | |
| CN208421422U (en) | A kind of augmented reality short distance imaging optical system | |
| CN207424389U (en) | Augmented reality display device | |
| CN209137273U (en) | A kind of sight training instrument light-source system | |
| CN203561286U (en) | Parallax-free liquid crystal display riflescope optical system | |
| CN206850871U (en) | Reflective high photographing instrument when preventing light filling | |
| EP2063310A3 (en) | Birefringent filter using reflective polarizers and dichroic elements | |
| CN204515249U (en) | Improve illumination type interference system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SUZHOU ZUMAX MEDICAL CO., LTD. Free format text: FORMER NAME: SUZHOU JIEMEI MEDICAL APPARATUS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 215129 Suzhou high tech Zone, Jiangsu, the United States and the British street, No. 36 Patentee after: Zumax Medical Co., Ltd. Address before: 215129 Suzhou high tech Zone, Jiangsu, the United States and the British street, No. 36 Patentee before: Suzhou Jiemei Medical Apparatus Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No.5, Zhiying street, high tech Zone, Suzhou City, Jiangsu Province Patentee after: Suzhou Sumai Medical Technology Co.,Ltd. Address before: 215129 No. 36 Ying Street, hi tech Zone, Jiangsu, Suzhou Patentee before: Suzhou Sumai Medical Equipment Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |