JPS6160693B2 - - Google Patents
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- Publication number
- JPS6160693B2 JPS6160693B2 JP54158128A JP15812879A JPS6160693B2 JP S6160693 B2 JPS6160693 B2 JP S6160693B2 JP 54158128 A JP54158128 A JP 54158128A JP 15812879 A JP15812879 A JP 15812879A JP S6160693 B2 JPS6160693 B2 JP S6160693B2
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- center point
- eye
- subject
- objective lens
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 22
- 230000003028 elevating effect Effects 0.000 description 5
- 210000001525 retina Anatomy 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002207 retinal effect Effects 0.000 description 3
- 230000004256 retinal image Effects 0.000 description 1
Landscapes
- Eye Examination Apparatus (AREA)
Description
【発明の詳細な説明】
本発明は、検者の目の高さを変えずとも被検者
の眼底の上下部位を観察し得るようにした眼底カ
メラに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fundus camera that allows observation of the upper and lower parts of the fundus of a subject without changing the height of the examiner's eyes.
被検者眼の角膜面を中心として眼底カメラ全体
を俯仰させる方式の眼底カメラは、実開昭52−
14795号に記載されており既知である。ところ
が、この方式の眼底カメラは、被検者の眼底の観
察部位を変えて見るとき検者の目の高さも変えな
ければならない為、即ち被検者の眼底の下側部位
を見る時は接眼部が上方に位置するので検者は上
方からのぞきこみつつ中腰で俯仰装置を操作しな
ければならず又被検者の眼底の上側部位を見る時
は接眼部が下方に位置するので検者は下方からの
ぞきこみつつしやがんで俯仰装置を操作しなけれ
ばならない為、検者の疲労が著しいという欠点が
あつた。又、この眼底カメラの俯仰装置は、極端
な片持であるため眼底カメラを俯仰させる時その
操作が円滑に行かなかつたり、又バネ力量を利用
しているため眼底カメラ全体の自然降下が生じた
り最上端時と最下端時との移動力量が変化したり
して操作がしにくいという欠点があつた。 A fundus camera that tilts the entire fundus camera up and down centering on the corneal surface of the subject's eye was developed in 1972.
It is described in No. 14795 and is known. However, with this type of fundus camera, when changing the observed part of the examinee's fundus, the examiner's eye height must also be changed. Since the eye is located above, the examiner must look from above and operate the elevating device from the middle of the waist.Also, when looking at the upper part of the fundus of the subject, the eyepiece is located below, so the examiner must The disadvantage was that the examiner was extremely fatigued, as the examiner had to look down and operate the elevating device with great effort. In addition, since the retinal camera's elevating device is extremely cantilevered, it cannot be operated smoothly when elevating and elevating the retinal camera, and since it uses spring force, the entire retinal camera naturally descends. The disadvantage is that the amount of movement force changes between the top and bottom positions, making it difficult to operate.
本発明は、上記欠点を除去した眼底カメラを提
供せんとするものであるが、以下図示した一実施
例に基づきこれを説明すれば、第１図は本眼底カ
メラの光学系を示しており、１は観察光源、２は
観察集光レンズ、３は半透ミラー、４はリングス
リツト、５はミラー、６はレンズ、７は孔明き
鏡、８は回動可能なミラー、９は回動及び移動可
能なミラー、１０は俯仰可能な対物レンズ、１１
は被検者眼、１２は写真レンズ、１３は適宜光路
から外され得るようになつているミラー、１４は
プリズム、１５は接眼レンズ、１６は検者眼、１
７は撮影光源、１８は撮影集光レンズ、１９はフ
イルム面である。観察の場合、観察光源１から発
した光はその進路を半透ミラー３によつて直角に
曲げられると共に観察集光レンズ２によつてリン
グスリツト４の付近に結像せしめられ、リングス
リツト４からの光はその進路をミラー５で直角に
曲げられた後レンズ６によつて孔明き鏡７上にリ
ング像として結像せしめられ、孔明き鏡７上のリ
ング像から発した光はミラー８、ミラー９で順次
方向が曲げられた後対物レンズ１０を通つて被検
者眼１１の角膜面上に結像せしめられて該被検者
眼１１の網膜を照明し、照明された網膜から出た
光は対物レンズ１０、ミラー９、ミラー８と照射
光とは逆の光路を辿つた後孔明き鏡７の中心を通
り、続いて該光は写真レンズ１２を通つた後ミラ
ー１３で直角に曲げられ、さらに該光はプリズム
１４で方向が曲げられた後接眼レンズ１５を通つ
て検者眼１６に達するようになつており、これに
よつて被検者眼１１の眼底の観察が行われ得るよ
うになつている。又、写真撮影の場合、撮影光源
１７から発した光は半透ミラー３を通り抜けると
共に撮影集光レンズ１８によつてリングスリツト
４の付近に結像せしめられ、リングスリツト４か
らの光は以降観察系と同じ光路を辿つた後被検者
眼１１の網膜に達し、網膜から出た光は再び観察
系と同じ光路を辿つた後写真レンズ１２を通過
し、ここでミラー１３が点線図示の如く光路から
外されることにより該光はフイルム面１９上に達
するようになつており、これによつて被検者眼１
１の網膜像がフイルム面１９に写し込まれるよう
になつている。 The present invention aims to provide a fundus camera that eliminates the above-mentioned drawbacks. This will be explained below based on one embodiment shown in the drawings. FIG. 1 shows the optical system of the present fundus camera. 1 is an observation light source, 2 is an observation condenser lens, 3 is a semi-transparent mirror, 4 is a ring slit, 5 is a mirror, 6 is a lens, 7 is a perforated mirror, 8 is a rotatable mirror, 9 is a rotatable and A movable mirror; 10 is a tiltable objective lens; 11
12 is a photographic lens, 13 is a mirror that can be removed from the optical path as appropriate, 14 is a prism, 15 is an eyepiece lens, 16 is an examiner's eye, 1
7 is a photographing light source, 18 is a photographing condenser lens, and 19 is a film surface. In the case of observation, the path of the light emitted from the observation light source 1 is bent at right angles by the semi-transparent mirror 3, and the image is focused near the ring slit 4 by the observation condenser lens 2. The path of the light is bent at a right angle by the mirror 5, and then the lens 6 forms a ring image on the perforated mirror 7, and the light emitted from the ring image on the perforated mirror 7 is reflected by the mirror 8, After the direction is sequentially bent by the mirror 9, the image is formed on the corneal surface of the subject's eye 11 through the objective lens 10, illuminating the retina of the subject's eye 11, and exiting from the illuminated retina. The light passes through the center of the apertured mirror 7 following an optical path opposite to that of the irradiated light through the objective lens 10, mirror 9, mirror 8, and then the light passes through the photographic lens 12 and is then bent at a right angle by the mirror 13. Further, the direction of the light is bent by a prism 14 and then passes through an eyepiece 15 to reach the examiner's eye 16, whereby the fundus of the examinee's eye 11 can be observed. It's becoming like that. In addition, in the case of photography, the light emitted from the photography light source 17 passes through the semi-transparent mirror 3 and is focused near the ring slit 4 by the photography condenser lens 18, and the light from the ring slit 4 is subsequently observed. After following the same optical path as the observation system, the light reaches the retina of the subject's eye 11, and the light emitted from the retina again follows the same optical path as the observation system, and then passes through the photographic lens 12, where the mirror 13 is moved as shown by the dotted line. By being removed from the optical path, the light reaches the film surface 19, thereby causing the eye 1 of the subject to be examined.
The retinal image of 1 is projected onto the film surface 19.
そして、本眼底カメラは、被検者眼１１の角膜
面を中心とする俯仰を行うに際し、眼底カメラ全
体を俯仰せしめることなく、対物レンズ１０とミ
ラー９とミラー８を動かすだけで良いようになつ
ている。即ち、対物レンズ１０が被検者眼の角膜
面の中心点Ａを中心とする正円上を移動し即ち該
点Ａを中心として俯仰し、対物レンズ１０と連動
してミラー８がその反射中心点Ｂを中心として回
動し、対物レンズ１０及びミラー８と連動してミ
ラー９がその反射中心点Ｃを中心として回動し且
つ点Ａと点Ｂとを焦点とする惰円上を移動するよ
うになつている。従つて、上記光学系の移動の際
は対物レンズ１０を通る光が常に撮影系の光軸を
通ると共に＋の光路長が一定であり更に点
Ａから対物レンズ１０までの距離も一定であるの
で、ピントボケや倍率変化等は一切起こらない。
かくして、本眼底カメラは、被検者側光学系の一
部の移動及び回動だけで、不都合なく被検者の眼
底の上下部位を観察し得るようになつている。 In addition, when the present fundus camera is tilted around the corneal surface of the subject's eye 11, it is possible to move only the objective lens 10, mirror 9, and mirror 8 without having to tilt the entire fundus camera. ing. That is, the objective lens 10 moves on a perfect circle centered on the center point A of the corneal surface of the subject's eye, that is, looks up and down with the center point A as the center, and in conjunction with the objective lens 10, the mirror 8 moves to its reflection center. The mirror 9 rotates around the point B, and in conjunction with the objective lens 10 and the mirror 8, the mirror 9 rotates around the reflection center C, and moves on an inertia circle with the focal points of the points A and B. It's becoming like that. Therefore, when the optical system is moved, the light passing through the objective lens 10 always passes through the optical axis of the photographing system, the positive optical path length is constant, and the distance from point A to the objective lens 10 is also constant. , no out-of-focus or magnification changes occur.
In this manner, the present fundus camera can observe the upper and lower parts of the fundus of the subject without any inconvenience by simply moving and rotating a part of the subject-side optical system.
第２図及び第３図は、上記被検者側光学系の移
動兼回動機構を示しており、２０，２０は眼底カ
メラ本体の側壁２１，２１間に枢支された駆動軸
２２の両端に夫々固着されたつまみ、２３及び２
４は駆動軸２２の中央部に夫々固着されたウオー
ムギヤ及びピニオン、２５は上端にカム２６が又
下端には傘歯車２７が夫々固着されていると共に
中央部にはウオームギヤ２３と噛合するギヤ２８
が固着されている沿直カム軸、２９は一端にカム
３０が固着され且つ他端に傘歯車２７と噛合する
傘歯車３１が固着されている水平カム軸、３２は
ミラー８と一体になつていると共に先端がカム３
０のカム溝に滑合しているカムピンであつて、以
上の構成からミラー８はつまみ２０の回転によつ
て反射中心点Ｂを中心として回動せしめられる。
３３は角膜面の中心点Ａを中心とする正円の一部
と一致するようにして側壁２２に設けられたキー
溝、３４は対物レンズ３４を保持していると共に
それ自身に設けられたキー３４ａがキー溝３３に
滑合することにより点Ａを中心とする正円上を移
動し得るようになつている対物レンズ枠、３５は
対物レンズ枠３４に固着されていると共に点Ａを
中心とする正円の一部と一致する形状を有し且つ
ピニオン２４と噛合しているラツクであつて、以
上の構成から対物レンズ１０はつまみ２０の回転
によつて角膜面の中心点Ａを中心として俯仰せし
められる。３６は角膜面の中心点Ａとミラー８の
反射中心点Ｂを焦点とする楕円の一部と一致する
ようにして側壁２２に設けられたキー溝、３７は
ミラー９をその反射中心点Ｃに枢支していると共
に対物レンズ支持枠３４の内側に光軸方向に摺動
可能に嵌挿せしめられていて該反射中心点Ｃと一
致する部位に設けられたキー３７ａがキー溝３６
に滑合することにより点Ａと点Ｂを焦点とする楕
円上を移動し得るようになつているミラー枠であ
つて、以上の構成からミラー９はつまみ２０の回
転によつて点Ａと点Ｂを焦点とする楕円上を移動
する。又、３８はミラー９と一体になつていると
共に先端がカム２６のカム溝に滑合しているカム
ピンであつて、以上の構成からミラー９はつまみ
２０の回転によつて反射中心点Ｃを中心として回
動せしめられる。そして、ミラー８，９の回動
は、点Ａから発した光が常に孔明き鏡７の中心を
通り得るように調整設定されている。従つて、こ
の移動兼回動機構によれば、つまみ２０を回転さ
せることにより、対物レンズ１０を被検者眼の角
膜面の中心点Ａを中心として俯仰せしめ、同時に
ミラー８をその反射中心点Ｂを中心として回動せ
しめ、同時にミラー９をその反射中心点Ｃを中心
として回動させ且つ点Ａと点Ｂとを焦点とする楕
円上を移動せしめることが出来、その結果ピント
ボケや倍率変化等を一切起さずに被検者の眼底の
上下部位の像を適宜孔明き鏡７の中心へと送るこ
とが出来る。 2 and 3 show the movement and rotation mechanism of the subject-side optical system, and 20 and 20 are both ends of a drive shaft 22 that is pivotally supported between the side walls 21 and 21 of the fundus camera body. knobs 23 and 2 fixed respectively to
Reference numeral 4 denotes a worm gear and pinion fixed to the center of the drive shaft 22, and 25 has a cam 26 fixed to the upper end, a bevel gear 27 fixed to the lower end, and a gear 28 meshing with the worm gear 23 in the center.
29 is a horizontal cam shaft to which a cam 30 is fixed to one end and a bevel gear 31 that meshes with the bevel gear 27 is fixed to the other end; 32 is a horizontal cam shaft which is integrated with the mirror 8; At the same time, the tip is cam 3
The mirror 8 is a cam pin that is slidably fitted into a cam groove of 0. Due to the above structure, the mirror 8 is rotated about the reflection center point B by the rotation of the knob 20.
33 is a key groove provided in the side wall 22 so as to coincide with a part of a perfect circle centered on the center point A of the corneal surface; 34 is a key that holds the objective lens 34 and is provided on itself; The objective lens frame 34a is slidably fitted into the key groove 33 so as to be movable on a perfect circle centered on point A. The objective lens frame 35 is fixed to the objective lens frame 34 and is movable on a perfect circle centered on point A. The objective lens 10 is a rack having a shape that coincides with a part of a perfect circle and meshing with the pinion 24. From the above structure, the objective lens 10 is rotated around the center point A of the corneal surface by rotation of the knob 20. I am looked down upon. 36 is a key groove provided in the side wall 22 so as to coincide with a part of an ellipse whose focal point is the center point A of the corneal surface and the reflection center point B of the mirror 8; 37 is a key groove provided in the side wall 22 to align the mirror 9 with the reflection center point C A key 37a which is pivotally supported and fitted inside the objective lens support frame 34 so as to be slidable in the optical axis direction, and which is provided at a position that coincides with the reflection center point C, is located in the key groove 36.
It is a mirror frame that can be moved on an ellipse with points A and B as focal points by slidingly fitting with the mirror frame. Move on an ellipse with B as the focal point. Further, 38 is a cam pin which is integrated with the mirror 9 and whose tip is slidably fitted into the cam groove of the cam 26. From the above structure, the mirror 9 can be moved to the reflection center point C by the rotation of the knob 20. It can be rotated around the center. The rotation of the mirrors 8 and 9 is adjusted and set so that the light emitted from the point A always passes through the center of the perforated mirror 7. Therefore, according to this movement/rotation mechanism, by rotating the knob 20, the objective lens 10 is raised up and down with the center point A of the corneal surface of the subject's eye as the center, and at the same time, the mirror 8 is moved upward and downward around the center point A of the corneal surface of the subject's eye. At the same time, the mirror 9 can be rotated around its reflection center point C and moved on an ellipse with points A and B as focal points, resulting in blurring of focus, change in magnification, etc. Images of the upper and lower parts of the fundus of the subject's eye can be sent to the center of the perforated mirror 7 as appropriate without causing any disturbance.
第４図は本発明眼底カメラの第２実施例の光学
系の要部を示しており、これはミラー８を固定せ
しめると共にそれ自身の反射中心点B′を中心とし
て回動するミラー８′を光学的にはミラー８とミ
ラー９との間で構造上はミラー９の上方に配置
し、ミラー９が点Ａと点B′を焦点とする楕円上を
移動するようにしたものである。又、第５図は本
発明眼底カメラの第３実施例の光学系の要部を示
しており、これはミラー８′の光学的位置が第２
実施例と同じであるが、構造上はミラー８′をミ
ラー９の下方に配置したものである。 FIG. 4 shows the main part of the optical system of the second embodiment of the fundus camera of the present invention, which has a fixed mirror 8 and a mirror 8' that rotates around its own reflection center point B'. Optically, it is arranged between mirrors 8 and 9, structurally above mirror 9, and mirror 9 moves on an ellipse with focal points at points A and B'. Further, FIG. 5 shows the main part of the optical system of the third embodiment of the fundus camera of the present invention, and this is because the optical position of the mirror 8' is the second embodiment.
Although it is the same as the embodiment, the mirror 8' is arranged below the mirror 9 in terms of structure.
第６図は本発明眼底カメラの第４実施例の光学
系の要部を示しており、これはミラー８を半透ミ
ラーにすると共にミラー５とミラー８との間に対
物レンズ１０及びミラー８，９と連動するミラー
３９とミラー４０とを配置し、ミラー３９がその
反射中心点Ｄを中心として回動し、同時にミラー
４０がその反射中心点Ｅを中心として回動しつつ
ミラー８の反射中心点Ｂとミラー３９の反射中心
点Ｄを焦点とする楕円上を移動するようにしたも
のである。従つて、本実施例の場合孔明き鏡７等
を用いずとも照明系を構成することが出来、この
場合＋の光路長が一定であるのでピントボ
ケや倍率変化等の不都合は一切起こらない。 FIG. 6 shows the main parts of the optical system of the fourth embodiment of the fundus camera of the present invention, in which the mirror 8 is a semi-transparent mirror, and the objective lens 10 and the mirror 8 are disposed between the mirrors 5 and 8. , 9 are arranged, and the mirror 39 rotates around its reflection center point D, and at the same time, the mirror 40 rotates around its reflection center point E while reflecting the reflection of the mirror 8. It is arranged to move on an ellipse whose focal points are the center point B and the reflection center point D of the mirror 39. Therefore, in this embodiment, the illumination system can be constructed without using the perforated mirror 7, etc. In this case, since the positive optical path length is constant, no problems such as out-of-focus or changes in magnification occur.
第７図は本発明を応用した細隙灯眼底カメラの
照明系の要部を示しており、光源から発した光そ
の進路をミラー４１によつて直角に曲げられた後
固定レンズ４２を通過し、続いてミラー４３，４
４によつて順次方向が曲げられた後被検者眼の角
膜面の中心点Ａに達して被検者眼の網膜を照明す
るようになつている。そして、ミラー４３はその
反射中心点Ｆを中心として回動し、ミラー４４は
その反射中心点Ｇを中心として回動しつつ点Ａと
点Ｆを焦点とする楕円上を移動するようになつて
いる。従つて、本応用例の場合、従来例のように
レンズを移動せしめることもなく、ミラー４３，
４４の回転と移動のみで照明系の俯仰が可能であ
る。 FIG. 7 shows the main parts of the illumination system of a slit lamp fundus camera to which the present invention is applied, in which the path of light emitted from a light source is bent at right angles by a mirror 41 and then passes through a fixed lens 42. , followed by mirror 43,4
4, the light beam reaches the center point A of the corneal surface of the subject's eye, and illuminates the retina of the subject's eye. The mirror 43 rotates around its reflection center point F, and the mirror 44 rotates around its reflection center G while moving on an ellipse with points A and F as focal points. There is. Therefore, in the case of this application example, the mirrors 43,
It is possible to raise and lower the illumination system only by rotating and moving 44.
以上のように、本発明による眼底カメラは、被
検者側光学系の一部の移動だけで不都合なく被検
者の眼底の上下部位を観察することが出来、その
結果検者の目の高さを変えずとも観察可能となる
ので、検者の疲労は著しく軽減される。又、この
光学系の俯仰機構は、両持であり而もバネ力量等
を利用していないので非常に操作し易い。 As described above, the fundus camera according to the present invention can observe the upper and lower parts of the fundus of the examinee without any inconvenience by only moving a part of the optical system on the examinee side, and as a result, it is possible to observe the upper and lower parts of the fundus of the examinee without any inconvenience. Since observation can be made without changing the angle, the fatigue of the examiner is significantly reduced. Further, the elevation mechanism of this optical system is very easy to operate since it is supported on both sides and does not utilize spring force or the like.
第１図は本発明による眼底カメラの一実施例の
光学系の概略図、第２図は上記実施例の被検者側
光学系の移動兼回動機構の要部垂直断面図、第３
図は上記機構の駆動軸周辺部の水平断面図、第４
図乃至第６図は夫々第２実施例乃至第４実施例の
光学系の要部概略図、第７図は本発明を応用した
細隙灯眼底カメラの照明系の要部概略図である。
１……観察光源、２……観察集光レンズ、３…
…半透ミラー、４……リングスリツト、５……ミ
ラー、６……レンズ、７……孔明き鏡、８……ミ
ラー、９……ミラー、１０……対物レンズ、１１
……被検者眼、１２……写真レンズ、１３……ミ
ラー、１４……プリズム、１５……接眼レンズ、
１６……検者眼、１７……撮影光源、１８……撮
影集光レンズ、１９……フイルム面、２０……つ
まみ、２１……側壁、２２……駆動軸、２３……
ウオームギヤ、２４……ピニオン、２５……沿直
カム軸、２６……カム、２７……傘歯車、２８…
…ギヤ、２９……水平カム軸、３０……カム、３
１……傘歯車、３２……カムピン、３３……キー
溝、３４……対物レンズ枠、３４ａ……キー、３
５……ラツク、３６……キー溝、３７……ミラー
枠、３７ａ……キー、３８……カムピン、Ａ……
角膜面の中心点、Ｂ，Ｃ……反射中心点。
FIG. 1 is a schematic diagram of the optical system of an embodiment of the fundus camera according to the present invention, FIG.
The figure is a horizontal sectional view of the area around the drive shaft of the above mechanism.
6 to 6 are schematic diagrams of the main parts of the optical systems of the second to fourth embodiments, respectively, and FIG. 7 is a schematic diagram of the main parts of the illumination system of a slit lamp fundus camera to which the present invention is applied. 1...Observation light source, 2...Observation condensing lens, 3...
...Semi-transparent mirror, 4...Ring slit, 5...Mirror, 6...Lens, 7...Perforated mirror, 8...Mirror, 9...Mirror, 10...Objective lens, 11
... Subject's eye, 12 ... Photographic lens, 13 ... Mirror, 14 ... Prism, 15 ... Eyepiece,
16...Examiner's eye, 17...Photographing light source, 18...Photographing condensing lens, 19...Film surface, 20...Knob, 21...Side wall, 22...Drive shaft, 23...
Worm gear, 24... pinion, 25... vertical cam shaft, 26... cam, 27... bevel gear, 28...
...Gear, 29...Horizontal camshaft, 30...Cam, 3
1...Bevel gear, 32...Cam pin, 33...Key groove, 34...Objective lens frame, 34a...Key, 3
5...Rack, 36...Keyway, 37...Mirror frame, 37a...Key, 38...Cam pin, A...
Center point of the corneal surface, B, C...Reflection center point.
Claims (1)
ミラーを配置し、一方のミラーがそれ自身の反射
中心点を中心として回動し、他方のミラーが前記
一方のミラーと連動してそれ自身の反射中心点を
中心として回動し且つ被検者眼の角膜面の中心点
と前記一方のミラーの反射中心点とを焦点とする
楕円上を移動するように構成して、検者側の目の
高さを変えずとも被検者眼の上下部位を観察し得
るようにした眼底カメラ。1 At least two mirrors are arranged in a part of the optical system on the subject's eye side, one mirror rotates around its own reflection center point, and the other mirror moves in conjunction with the one mirror. The mirror is configured to rotate around its own reflection center point and move on an ellipse whose focus is the center point of the corneal surface of the examinee's eye and the reflection center point of the one mirror. A fundus camera that allows observation of the upper and lower parts of a subject's eye without changing the height of the side eyes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15812879A JPS5683326A (en) | 1979-12-07 | 1979-12-07 | Eyeground camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15812879A JPS5683326A (en) | 1979-12-07 | 1979-12-07 | Eyeground camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5683326A JPS5683326A (en) | 1981-07-07 |
| JPS6160693B2 true JPS6160693B2 (en) | 1986-12-22 |
Family
ID=15664893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15812879A Granted JPS5683326A (en) | 1979-12-07 | 1979-12-07 | Eyeground camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5683326A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6391055A (en) * | 1986-10-07 | 1988-04-21 | Yasuhiro Kumagai | Processing method for ume (plum) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD211951A1 (en) * | 1982-12-01 | 1984-08-01 | Zeiss Jena Veb Carl | DEVICE FOR MONITORING AND PHOTOGRAPH OF HUMAN EYE |
| JP2728259B2 (en) * | 1988-04-12 | 1998-03-18 | 株式会社トプコン | Fundus camera |
| JP5006585B2 (en) * | 2006-06-20 | 2012-08-22 | 興和株式会社 | Handheld fundus imaging device |
| FR2984717B1 (en) * | 2011-12-22 | 2014-02-28 | Essilor Int | DEVICE FOR DETERMINING AT LEAST ONE VISION PARAMETER OF A SUBJECT FOLLOWING A PLURALITY OF VISEE DIRECTION |
-
1979
- 1979-12-07 JP JP15812879A patent/JPS5683326A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6391055A (en) * | 1986-10-07 | 1988-04-21 | Yasuhiro Kumagai | Processing method for ume (plum) |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5683326A (en) | 1981-07-07 |
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