CN202776261U - Skiascope - Google Patents
Skiascope Download PDFInfo
- Publication number
- CN202776261U CN202776261U CN201220443315.XU CN201220443315U CN202776261U CN 202776261 U CN202776261 U CN 202776261U CN 201220443315 U CN201220443315 U CN 201220443315U CN 202776261 U CN202776261 U CN 202776261U
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- CN
- China
- Prior art keywords
- optical axis
- skiascope
- diaphragm
- semi
- illumination
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- 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
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- 230000003287 optical effect Effects 0.000 claims abstract description 43
- 238000005286 illumination Methods 0.000 claims abstract description 20
- 238000003384 imaging method Methods 0.000 claims abstract description 13
- 238000007689 inspection Methods 0.000 claims description 29
- 201000009310 astigmatism Diseases 0.000 claims description 5
- 208000029091 Refraction disease Diseases 0.000 claims description 4
- 230000004430 ametropia Effects 0.000 claims description 4
- 208000014733 refractive error Diseases 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 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
- 238000001514 detection method Methods 0.000 claims description 2
- 238000007747 plating Methods 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 230000004456 color vision Effects 0.000 abstract description 3
- 239000006059 cover glass Substances 0.000 description 12
- 210000005252 bulbus oculi Anatomy 0.000 description 10
- 210000001508 eye Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000002207 retinal effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Images
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- Eye Examination Apparatus (AREA)
Abstract
A skiascope is provided with an illumination imaging system. The system comprises an illumination light source, a projecting mirror, and a semi-transparent semi-reflective mirror, which are arranged along the light beam in the direction of illumination optical axis rays and are in the same optical axis. The reflecting plane of the semi-transparent semi-reflective mirror and the illumination optical axis form an angle of 45 degrees; a condensing lens array and a skiascopy diaphragm are arranged on the illumination optical axis between the illumination light source and the projecting mirror sequentially; the optical axis of the condensing lens array is overlapped with the illumination optical axis; the skiascopy diaphragm is arranged on the focusing face of the projecting mirror; the plane of the skiascopy diaphragm is vertical to the illumination optical axis and rotates along the illumination optical axis; and the projecting mirror can move relative to the skiascopy diaphragm. In the skiascope, the condensing lens array is additionally arranged behind the illumination light source, so that the light energy utilization rate is high; band-shaped light or point-shaped light of the skiascopy diaphragm penetrates the projecting mirror and forms an image, and the boundary is clear and even; and the skiascope adopting the illumination imaging system has a compact structure, for example, a red or green color light source is used to achieve better color vision and facilitate the identification of users.
Description
Technical field
This utility model relates to photoelectric lighting and Display Technique field, particularly relates to a kind of skiascope.
Background technology
Skiascope is the instrument of measuring people's ametropia and axis of astigmatism, wherein be provided with the optical system of filament illumination imaging. be used for objective measurement eye refraction state, utilize skiascope that eyeball inside is illuminated, light is returned from retinal reflex, these reflection rays change through the eye refraction degree, can judge the refractive status of eyeball by the variation that checks reflection ray.
Skiascope can be divided into two types substantially, banded light and point-like light.The banded light that is generally that is used for clinically at present optometry, banded spectrum in the existing streak retinoscope adopts the filament of the electric filament lamp of high brightness to throw light on by the projectoscope imaging, its internal structure mainly comprises electric filament lamp, projectoscope, with a semi-permeable and semi-reflecting mirror, electric filament lamp is the light source of linear filament, filament imaging and reflection is projected people's eyeball by projectoscope and semi-transparent semi-reflecting eyeglass.The examiner is by observing the variation of filament picture, regulate simultaneously the distance between projectoscope and the bulb, projecting beam is become divergent beams or convergent beam, carry out optometry, its shortcoming is that the band shape picture that becomes of filament is clear not and even not, the utilization ratio of optical energy of light source is not high, and the service life of electric filament lamp is short.
Summary of the invention
The purpose of this utility model provides a kind of skiascope.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of skiascope, this skiascope is for detection of ametropia and axis of astigmatism, it has an illumination imaging systems, described illumination imaging systems comprises the lighting source that sets gradually along on the lighting optical axis radiation direction at light beam place, projectoscope and semi-transparent semi-reflecting lens, they are on same optical axis, the reflective plane of described semi-transparent semi-reflecting lens and described lighting optical axis are the 45o angle, be disposed with collecting lens row and inspection shadow diaphragm on the lighting optical axis between described lighting source and the projectoscope, optical axis and the lighting optical axis of described collecting lens row overlap, described inspection shadow diaphragm is placed near on the focal plane of described projectoscope, and plane and the described lighting optical axis of described inspection shadow diaphragm are perpendicular.
Preferably, described collecting lens is classified multi-disc lens or single element lens as.
Preferably, described inspection shadow diaphragm is banded diaphragm or point-like diaphragm.
Preferably, described inspection shadow diaphragm can be around described lighting optical axis rotation.
Preferably, described projectoscope can move axially by relatively described inspection shadow diaphragm.
Preferably, described lighting source is electric filament lamp or xenon lamp or Halogen light or LED lamp.
Preferably, described lighting source is white light source or colored light sources.
Preferably, described semi-transparent semi-reflecting lens can replace by enough illuminators with holes.
Preferably, the illuminator of the hollow reflectance coating of the described semi-transparent semi-reflecting lens enough platings of energy replaces.
Because technique scheme is used, this utility model compared with prior art has following advantages:
Skiascope of the present utility model adds that behind lighting source the collecting lens row can make utilization ratio of optical energy high, the picture that the banded light of inspection shadow diaphragm or point-like light become through projectoscope, and sharpness of border is even; The skiascope compact conformation of this illumination imaging systems simultaneously, as adopt redness or green colored light sources, color vision can be better, the easier identification of user.
Description of drawings
Accompanying drawing 1 is the structural representation of illumination imaging systems in this utility model;
Accompanying drawing 2 is the structural representation of banded diaphragm for inspection shadow diaphragm in this utility model;
Accompanying drawing 3 is the structural representation of point-like diaphragm for inspection shadow diaphragm in this utility model;
Accompanying drawing 4 is the structural representation of skiascope in this utility model.
Wherein: 1, lighting source; 2, collecting lens row; 3, inspection shadow diaphragm; 4, projectoscope; 5, semi-transparent semi-reflecting lens; 6, the first cover glass sheet; 7, the second cover glass sheet; 8, observe eye; 9, delustring sheet group; OO1, lighting optical axis; O2O3, observation optical axis; P, the first image planes; M, eyeball.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described:
In the present embodiment, the skiascope shown in Fig. 1,4, this skiascope have an illumination imaging systems: this illumination imaging systems comprises the lighting optical axis OO along the light beam place
1
The lighting source 1 that sets gradually on the direction, collecting lens row 2, inspection shadow diaphragm 3, projectoscope 4, semi-transparent semi-reflecting lens 5 and delustring sheet group 9, the while is through the observation optical axis O at the light beam place of semi-transparent semi-reflecting lens 5 reflections
2
O
3
On be provided with the first cover glass sheet 6, the second cover glass sheet 7, and the first cover glass sheet 6, the second cover glass sheet 7 are separately positioned on eyeglass 5 both sides, lighting optical axis OO
1
With observation optical axis O
2
O
3
Perpendicular.Wherein:
Collecting lens row 2 are single element lens or multi-disc lens; Inspection shadow diaphragm 3 is banded diaphragm or point-like diaphragm, shown in Fig. 2,3; Delustring sheet group 9 is arranged behind the semi-transparent semi-reflecting lens 5; Lighting source 1 is electric filament lamp or xenon lamp or Halogen light or LED lamp; Lighting source is white light source or colored light sources etc.Semi-transparent semi-reflecting lens 5 can replace with illuminator with holes or the illuminator that plates hollow reflectance coating.
Inspection shadow diaphragm 3 is arranged on lighting source 1 on the first image planes P of 2 one-tenth of collecting lens row, and the plane of inspection shadow diaphragm 3 is vertical with lighting optical axis OO1 and meet at the O point with OO1, examines shadow diaphragm 3 and can rotate around lighting optical axis OO1; Projectoscope 4 can be along lighting optical axis OO1 with respect to inspection shadow diaphragm 3 move left and right; The reflecting surface O1 of eyeglass 5 becomes the 45o angle with lighting optical axis.The light that sends from lighting source 1 is through collecting lens row 2; band on the inspection shadow diaphragm 3/point-like light projects reflection on the eyeglass 5 through projectoscope 4; seeing through the first cover glass sheet 6 is imaged onto on the detected eyeball M again; observer's observation eye 8 is by the second cover glass sheet 7; eyeglass 5; the variation of the band on the eyeball M that 6 observations of the first cover glass sheet are detected/point-like light; move projectoscope 4 to regulate the stop imagery of inspection shadow at epibulbar size and definition along lighting optical axis OO1; measure ametropia; simultaneously; inspection shadow diaphragm 3 rotates around lighting optical axis OO1; can make the picture of band/point-like light around observation optical axis O2O3 rotation, be used for detecting the axis of astigmatism on eyeball M.
Below concrete set forth operation principle of the present utility model:
As shown in Figure 4, the light that sends from lighting source 1 illuminates the band shape inspection shadow diaphragm 3 that is arranged on the P face through collecting lens row 2, inspection shadow diaphragm 3 projects reflection on the semi-transparent semi-reflecting lens 5 through projectoscope 4 again, and see through the first cover glass sheet 6 and shine detected eyeball M for observation, simultaneously, observer's observation eye 8 is by the second cover glass sheet 7, semi-transparent semi-reflecting lens 5, the detected eyeball M of the first cover glass sheet 6 observations; Moving projectoscope 4 along lighting optical axis OO1 can regulate inspection shadow diaphragm 3 and be imaged on epibulbar size and definition, measure people's refraction of eye situation, simultaneously, inspection shadow diaphragm 3 can make the picture of inspection shadow diaphragm 3 around observation optical axis O2O3 rotation around lighting optical axis OO1 rotation, is used for detecting the axis of astigmatism on eyeball M, in addition, as adopting redness or green colored light sources, color vision can be better, the easier identification of user.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All equivalences of doing according to this utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (9)
1. skiascope, this skiascope is for detection of ametropia and axis of astigmatism, it has an illumination imaging systems, described illumination imaging systems comprises the lighting source that sets gradually along on the lighting optical axis radiation direction at light beam place, projectoscope and semi-transparent semi-reflecting lens, they are on same optical axis, the reflective plane of described semi-transparent semi-reflecting lens and described lighting optical axis are the 45o angle, it is characterized in that: be disposed with collecting lens row and inspection shadow diaphragm on the lighting optical axis between described lighting source and the projectoscope, optical axis and the lighting optical axis of described collecting lens row overlap, described inspection shadow diaphragm is placed near on the focal plane of described projectoscope, and plane and the described lighting optical axis of described inspection shadow diaphragm are perpendicular.
2. skiascope according to claim 1, it is characterized in that: described collecting lens is classified multi-disc lens or single element lens as.
3. skiascope according to claim 1, it is characterized in that: described inspection shadow diaphragm is banded diaphragm or point-like diaphragm.
4. skiascope according to claim 1 is characterized in that: described inspection shadow diaphragm can be around described lighting optical axis rotation.
5. skiascope according to claim 1, it is characterized in that: described projectoscope can move axially by relatively described inspection shadow diaphragm.
6. skiascope according to claim 1, it is characterized in that: described lighting source is electric filament lamp or xenon lamp or Halogen light or LED lamp.
7. skiascope according to claim 1, it is characterized in that: described lighting source is white light source or colored light sources.
8. skiascope according to claim 1 is characterized in that: the enough illuminator replacements with holes of described semi-transparent semi-reflecting lens energy.
9. skiascope according to claim 1 is characterized in that: the illuminator replacement of the hollow reflectance coating of the described semi-transparent semi-reflecting lens enough platings of energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220443315.XU CN202776261U (en) | 2012-09-03 | 2012-09-03 | Skiascope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220443315.XU CN202776261U (en) | 2012-09-03 | 2012-09-03 | Skiascope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202776261U true CN202776261U (en) | 2013-03-13 |
Family
ID=47803626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220443315.XU Expired - Lifetime CN202776261U (en) | 2012-09-03 | 2012-09-03 | Skiascope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202776261U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824157A (en) * | 2012-09-03 | 2012-12-19 | 苏州捷美医疗器械有限公司 | Skiascope |
-
2012
- 2012-09-03 CN CN201220443315.XU patent/CN202776261U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824157A (en) * | 2012-09-03 | 2012-12-19 | 苏州捷美医疗器械有限公司 | Skiascope |
| WO2014032428A1 (en) * | 2012-09-03 | 2014-03-06 | 苏州捷美医疗器械有限公司 | Retinoscope |
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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. |
|
| CP03 | Change of name, title or address |
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, 36, Ying Ying Street, hi tech Zone, Suzhou, Jiangsu, Suzhou Patentee before: ZUMAX MEDICAL Co.,Ltd. |
|
| 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: ZUMAX MEDICAL Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |