JPH11225970A - Ophthalmology photographing device - Google Patents

Ophthalmology photographing device

Info

Publication number
JPH11225970A
JPH11225970A JP10048935A JP4893598A JPH11225970A JP H11225970 A JPH11225970 A JP H11225970A JP 10048935 A JP10048935 A JP 10048935A JP 4893598 A JP4893598 A JP 4893598A JP H11225970 A JPH11225970 A JP H11225970A
Authority
JP
Japan
Prior art keywords
light source
optical system
light
vision target
optical path
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.)
Pending
Application number
JP10048935A
Other languages
Japanese (ja)
Inventor
Kazuhiro Matsumoto
和浩 松本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP10048935A priority Critical patent/JPH11225970A/en
Publication of JPH11225970A publication Critical patent/JPH11225970A/en
Pending legal-status Critical Current

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  • Eye Examination Apparatus (AREA)

Abstract

PROBLEM TO BE SOLVED: To present fixed vision target by a simple configuration without forming a branched optical path. SOLUTION: A photographer operates a front eye part observation switch 23 to insert an optical system for observing front eye part between an objective lens 6 and a perforated mirror 5 and lights a light source 16 to observe a front eye part. Since fixed vision target formed by light storage paint stores light already due to luminous flux emitted by a light source for illumination 17, luminous flux emitted voluntarily passes a lens 12 and the objective lens 6 and is projected on eyeground Er from pupil Ep of an eye to be examined E, and a subject sees this fixed vision target firmly. Moreover, after positioning is completed, the optical system for observing front eye part retracts out of an optical path, a light source 1 is lit, and a visual index plate 18 is inserted into the optical path. Since fixed vision target 18a in this visual index plate 18 stores light due to luminous flux emitted from a light source 19, the fixed vision target 18a also emits light as a light source so that the subject can confirm the fixed vision target 18a clearly and visually at all times.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、眼科医院等におい
て用いられる眼科撮影装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ophthalmologic photographing apparatus used in an ophthalmic clinic or the like.

【0002】[0002]

【従来の技術】従来から眼科装置においては、照明光学
系又は撮影光学系から分岐した視標投影光学系内に拡散
部材等の固視目標を配置し、それを背後から光源により
照明して被検者に提示している。
2. Description of the Related Art Conventionally, in an ophthalmologic apparatus, a fixation target such as a diffusing member is disposed in a target projection optical system branched from an illumination optical system or a photographing optical system, and the fixation target is illuminated from behind by a light source. Presented to the examiner.

【0003】[0003]

【発明が解決しようとする課題】しかしながら上述の従
来例においては、照明光学系又は撮影光学系から固視目
標投影光学系を分岐させるために、ハーフミラーや波長
分割ミラー等の高価な部品が必要となり、更に光路中に
それらの部品を配置するための広い空間を必要とするた
めに、光学系が大きくなり設計上の制約が増加する。
However, in the above-described conventional example, expensive parts such as a half mirror and a wavelength division mirror are required to branch the fixation target projection optical system from the illumination optical system or the photographing optical system. In addition, since a large space for arranging those components in the optical path is required, the size of the optical system is increased, and design constraints are increased.

【0004】また、固視目標と光源を固定して配置しな
ければならないために、光路の途中に配置した場合に、
光源それ自体や光源を駆動する配線又は光源を支持する
手段の影ができてしまい、更にこの配線が固視目標の動
きを制限する等の問題点が生ずる。
[0004] Further, since the fixation target and the light source must be fixedly arranged, if the fixation target and the light source are arranged in the middle of the optical path,
Shadows of the light source itself, wiring for driving the light source, or means for supporting the light source are formed, and this wiring also causes problems such as limiting the movement of the fixation target.

【0005】本発明の目的は、上述の問題点を解消し、
分岐光路を形成することなく簡素な構成で固視目標を提
示する眼科撮影装置を提供することにある。
An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide an ophthalmologic photographing apparatus that presents a fixation target with a simple configuration without forming a branch optical path.

【0006】[0006]

【課題を解決するための手段】上記目的を達成するため
の本発明に係る眼科撮影装置は、光源から発した光束を
被検眼の眼底に導く照明光学系と、該照明光学系により
照明された眼底像を撮像手段に導く撮像光学系と、蓄光
性塗料により形成した固視目標と、該固視目標を前記照
明光学系又は撮像光学系中に挿脱する切換手段と、前記
固視目標が光路外に離脱しているときに前記固視目標を
照明する照明手段とを有することを特徴とする。
An ophthalmologic photographing apparatus according to the present invention for achieving the above object has an illumination optical system for guiding a light beam emitted from a light source to a fundus of an eye to be inspected, and is illuminated by the illumination optical system. An imaging optical system for guiding a fundus image to imaging means, a fixation target formed of a luminous paint, a switching means for inserting and removing the fixation target in the illumination optical system or the imaging optical system, and the fixation target Lighting means for illuminating the fixation target when the fixation target is out of the optical path.

【0007】[0007]

【発明の実施の形態】本発明を図示の実施例に基づいて
詳細に説明する。図1は実施例の構成図を示し、光源1
から被検眼Eに至る照明光学系には、リング状開口を有
する絞り2、赤外光を透過する可視カットフィルタ3、
リレーレンズ4a、4b、孔あきミラー5、対物レンズ
6が順次に配列されている。可視カットフィルタ3は図
2に示すように、可視光を透過するスリット部3aと光
路内挿入時における赤外光の透過範囲3bを有し、駆動
手段7に接続され、撮影に同期してスリット部3aが光
路内を走査するようになっている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the illustrated embodiment. FIG. 1 shows a configuration diagram of an embodiment.
The illumination optical system from the eye to the eye E includes a stop 2 having a ring-shaped aperture, a visible cut filter 3 that transmits infrared light,
Relay lenses 4a, 4b, perforated mirror 5, and objective lens 6 are sequentially arranged. As shown in FIG. 2, the visible cut filter 3 has a slit portion 3a for transmitting visible light and a transmission range 3b for infrared light when inserted in the optical path. The unit 3a scans in the optical path.

【0008】孔あきミラー5の背後の撮影光学系、観察
光学系には、合焦レンズ8、撮影レンズ9、可視光の色
温度を変換する色温度変換フィルタ10、撮像手段11
が順次に配列されている。色温度変更フィルタ10は赤
外光を遮断する特性も合わせ持ち、光学系に挿脱可能に
配置されている。
The photographing optical system behind the perforated mirror 5 and the observation optical system include a focusing lens 8, a photographing lens 9, a color temperature conversion filter 10 for converting the color temperature of visible light, and an image pickup means 11.
Are sequentially arranged. The color temperature changing filter 10 also has a property of blocking infrared light, and is disposed so as to be insertable into and removable from the optical system.

【0009】対物レンズ6と孔あきミラー5の間には、
前眼部観察光学系が光路に挿脱自在に配置され、前眼部
観察光学系はレンズ12、13、前眼部観察時用固視目
標を有する視標板14、固視目標が発する光束を遮断す
るフィルタ15から構成されている。対物レンズ6の周
辺には、被検眼Eを照明する前眼部照明用の赤外光源1
6が配置され、更に前眼部観察光学系が光路から離脱し
ているときに、前眼部観察光学系の視標板14を照明す
る視標板照明用光源17が配置されている。
[0009] Between the objective lens 6 and the perforated mirror 5,
An anterior ocular segment observation optical system is disposed so as to be freely inserted into and removed from the optical path. The anterior ocular segment observing optical system includes lenses 12, 13; The filter 15 is configured to cut off the noise. An infrared light source 1 for anterior segment illumination for illuminating the eye E is provided around the objective lens 6.
6 is provided, and a target plate illumination light source 17 for illuminating the target plate 14 of the anterior ocular segment observation optical system when the anterior ocular segment observation optical system is separated from the optical path.

【0010】リレーレンズ4aと4bの間には、眼底観
察時用の固視目標を有する視標板18が光路に挿脱自在
に、かつ合焦レンズ6に連動して光軸方向に可動に配置
されており、更に視標板18を照明する視標板照明用光
源19が設けられている。そして、撮像手段11が発生
する映像信号は、画像制御手段20を介してテレビモニ
タ21に接続されている。また、赤外光源16、視標板
照明用光源17、画像制御手段20の制御は撮影スイッ
チ22、前眼部観察スイッチ23への入力によりCPU
24が行うようになっている。
[0010] Between the relay lenses 4a and 4b, a target plate 18 having a fixation target for fundus observation is detachably inserted into the optical path and is movable in the optical axis direction in conjunction with the focusing lens 6. A light source 19 for illuminating the target plate 18 for illuminating the target plate 18 is provided. The video signal generated by the imaging unit 11 is connected to the television monitor 21 via the image control unit 20. The infrared light source 16, the target plate illumination light source 17, and the image control means 20 are controlled by an input to a photographing switch 22 and an anterior eye observation switch 23 by a CPU.
24.

【0011】図3は視標板14、18の正面図、図4は
側面図を示し、ガラス基板の中央付近に、酸化アルミニ
ウム、酸化ストロンチウム、酸化カルシウム、酸化ユー
ロピウム、酸化ホウ素等を顔料とする蓄光性のインクに
より、小さい丸い固視目標14a、18aが印刷されて
いる。この固視目標14a、18aは畜光性があるので
外部からの照明光を蓄積し、照明光が途絶えた後も一定
の間、自発的に発光を続けて固視目標14a、18a自
体が光源となる。
FIG. 3 is a front view of the target plates 14 and 18, and FIG. 4 is a side view thereof. In the vicinity of the center of the glass substrate, aluminum oxide, strontium oxide, calcium oxide, europium oxide, boron oxide, or the like is used as a pigment. Small round fixation targets 14a, 18a are printed with luminous ink. Since the fixation targets 14a and 18a are luminous, they accumulate illumination light from the outside, and continue to emit light spontaneously for a certain period of time even after the illumination light is cut off, and the fixation targets 14a and 18a themselves become light sources. Become.

【0012】上述の構成により、先ず撮影者は光学系の
光軸が被検眼Eの瞳孔Epの中心を通り、対物レンズ6と
瞳孔Epとの間隔が所定距離になり、絞り2の像が被検眼
Eの瞳孔Epの付近に結像するように、被検者の前眼部を
観察しながら光学系の位置合わせを行う。このために、
撮影者は前眼部観察スイッチ23を操作して、前眼部観
察用光学系を対物レンズ6と孔あきミラー5の間に挿入
し、光源16を点灯して前眼部観察を行う。固視目標1
4aは既に照明用光源17が発する光束により蓄光して
いるので自発的に発光し、また固視目標14aはレンズ
12、対物レンズ6に関して略眼底共役位置に配置され
ているので、固視目標14aを発した光束はレンズ1
2、対物レンズ6を通り、被検眼Eの瞳孔Epから眼底Er
に投影され、被検者はこの固視目標14aを固視する。
With the above configuration, the photographer first passes the optical axis of the optical system through the center of the pupil Ep of the eye E to be examined, the distance between the objective lens 6 and the pupil Ep becomes a predetermined distance, and the image of the diaphragm 2 is exposed. The optical system is positioned while observing the anterior segment of the subject so as to form an image near the pupil Ep of the optometry E. For this,
The photographer operates the anterior segment observation switch 23 to insert the anterior segment observation optical system between the objective lens 6 and the perforated mirror 5, and turns on the light source 16 to observe the anterior segment. Fixation target 1
4a emits spontaneously because it has already accumulated light by the luminous flux emitted from the illumination light source 17, and the fixation target 14a is disposed at a substantially fundus conjugate position with respect to the lens 12 and the objective lens 6, so that the fixation target 14a Is the lens 1
2. From the pupil Ep of the eye E to pass through the objective lens 6 to the fundus Er
The subject fixes the fixation target 14a.

【0013】被検者の前眼部は赤外光源16により赤外
光で照明されており、照明された前眼部像は対物レンズ
6、前眼部観察用光学系、孔あきミラー5の開口部、合
焦レンズ6、撮影レンズ9を通り、撮像手段11の撮影
像面11aに結像する。結像した前眼部像はビデオ信号
に変換され、画像制御手段20を介してテレビモニタ2
1に映出される。検者はテレビモニタ21に映った前眼
部像を見て、被検眼Eの瞳孔像がテレビモニタ21の中
央部に位置し、図示しない位置合わせ手段により瞳孔Ep
の輪郭が明瞭となるように位置合わせを行う。
The anterior eye of the subject is illuminated with infrared light by an infrared light source 16, and the illuminated anterior eye image is formed by an objective lens 6, an anterior ocular observation optical system, and a perforated mirror 5. The light passes through the opening, the focusing lens 6, and the photographing lens 9, and forms an image on a photographing image plane 11 a of the imaging unit 11. The formed anterior ocular segment image is converted into a video signal, and transmitted to the television monitor 2 via the image control means 20.
It is projected on 1. The examiner looks at the anterior eye image shown on the television monitor 21, and the pupil image of the eye E is located at the center of the television monitor 21.
Are aligned so that the outline of the mark becomes clear.

【0014】位置合わせが終了すると、再び前眼部観察
スイッチ23を操作し、眼底を観察しながら更に精密な
位置合わせを行う。このとき、前眼部観察用光学系は光
路外に退避すると共に、光源1が点灯して視標板18が
光路内に挿入される。この視標板18中の固視目標18
aも固視目標14aと同様に、光源19を発した光束に
より蓄光しているので、固視目標18aは光源として発
光する。この固視目標18aを発した光束はリレーレン
ズ4aを通り、孔あきミラー5の周辺のミラー部により
左方へ反射され、対物レンズ6、被検眼Eの瞳孔Epから
眼底Erに達する。視標板18は合焦レンズ6と連動し、
常に被検眼Eの眼底Erと略共役に配置されるように構成
されているので、被検者は常に固視目標18aを明瞭に
視認することができる。
When the positioning is completed, the anterior eye part observation switch 23 is operated again to perform more precise positioning while observing the fundus. At this time, the anterior ocular segment observation optical system retracts out of the optical path, the light source 1 is turned on, and the optotype plate 18 is inserted into the optical path. The fixation target 18 in the target plate 18
Similarly to the fixation target 14a, since the light is accumulated by the light beam emitted from the light source 19, the fixation target 18a emits light as a light source. The light beam emitted from the fixation target 18a passes through the relay lens 4a, is reflected to the left by a mirror unit around the perforated mirror 5, and reaches the fundus Er from the pupil Ep of the objective lens 6 and the eye E to be examined. The optotype plate 18 is interlocked with the focusing lens 6,
The configuration is such that the subject is always arranged substantially conjugate with the fundus Er of the eye E, so that the subject can always clearly see the fixation target 18a.

【0015】光源1を発した光束は絞り2のリング状開
口を通り、フィルタ3により可視光が取り除かれ、通過
した赤外光はリレーレンズ4b、視標板18、リレーレ
ンズ4aを通り、孔あきミラー5の周辺のミラー部によ
り左方に反射され、対物レンズ6を介して被検眼Eの瞳
孔Epから眼底Erを照明する。照明された眼底像は瞳孔E
p、対物レンズ6、孔あきミラー5の孔部、合焦レンズ
6、撮影レンズ9を通り、撮像手段11の撮影像面11
aに結像する。そして、結像した眼底像はビデオ信号に
変換され、画像制御手段20を介してテレビモニタ21
に映出される。
The luminous flux emitted from the light source 1 passes through the ring-shaped opening of the stop 2, the visible light is removed by the filter 3, and the transmitted infrared light passes through the relay lens 4b, the target plate 18, and the relay lens 4a, and passes through the aperture. The light is reflected to the left by a mirror unit around the aperture mirror 5 and illuminates the fundus Er from the pupil Ep of the eye E through the objective lens 6. Illuminated fundus image is pupil E
p, the objective lens 6, the aperture of the perforated mirror 5, the focusing lens 6, the photographic lens 9, and the photographic image plane 11 of the imaging means 11.
An image is formed on a. Then, the formed fundus image is converted into a video signal, and the video signal is transmitted to the television monitor 21 via the image control means 20.
It is projected on.

【0016】検者はテレビモニタ21に映った眼底像を
見て、撮影部位やピントの状態等を確認した後に、撮影
スイッチ22を操作してカラー静止画撮影を行う。これ
により視標板18は光路外に退避し、赤外光は遮断され
て可視光が透過し眼底Erを照明する。同時に、温度変換
フィルタ10が光路内に挿入され、撮像手段11は静止
画撮影のための蓄積を開始する。このように色温度変換
フィルタ10を用いることにより、3200Kで照明さ
れた眼底像を5600Kの照明光で照明しているよう
に、眼底像の色温度を変換させることができる。安価で
かつ赤外成分を多く発光するハロゲンランプを、赤外観
察やカラー静止画撮影のための共通光源として使用する
ことができる。
The examiner looks at the fundus image displayed on the television monitor 21, confirms the photographing site and the focus state, and then operates the photographing switch 22 to photograph a color still image. As a result, the optotype plate 18 retreats out of the optical path, the infrared light is blocked, visible light is transmitted, and the fundus Er is illuminated. At the same time, the temperature conversion filter 10 is inserted into the optical path, and the imaging unit 11 starts accumulation for photographing a still image. By using the color temperature conversion filter 10 in this manner, the color temperature of the fundus image can be converted as if the fundus image illuminated at 3200K was illuminated with the illumination light of 5600K. A halogen lamp that is inexpensive and emits a large amount of infrared components can be used as a common light source for infrared observation and color still image shooting.

【0017】フィルタ駆動手段7はフィルタ3を駆動
し、可視光を透過するスリット部3aが光路内を走査す
る。スリット部3aを透過した可視光はレンズ4を通
り、孔あきミラー5の周辺のミラー部により左方に反射
され、対物レンズ6を通って被検眼Eの瞳孔Epから眼底
Erを照明する。照明された眼底像は、瞳孔Ep、対物レン
ズ6、孔あきミラー5の孔部、合焦レンズ6、撮影レン
ズ9、フィルタ10を通り、撮像手段11の撮影像面1
1aに結像する。結像した眼底像はデジタル映像信号に
変換され、画像制御手段20中の画像メモリに記録され
ると共に、テレビモニタ21に再生され、一連の撮影が
終了する。
The filter driving means 7 drives the filter 3, and the slit 3a transmitting visible light scans the optical path. The visible light transmitted through the slit portion 3a passes through the lens 4, is reflected to the left by the mirror portion around the perforated mirror 5, passes through the objective lens 6, and passes from the pupil Ep of the eye E to the fundus.
Illuminates Er. The illuminated fundus image passes through the pupil Ep, the objective lens 6, the hole of the perforated mirror 5, the focusing lens 6, the photographing lens 9, and the filter 10, and passes through the photographing image plane 1 of the imaging unit 11.
1a. The formed fundus image is converted into a digital video signal, recorded in the image memory in the image control means 20, and reproduced on the television monitor 21 to complete a series of photographing.

【0018】撮像手段11と被検眼Eの間に視標板14
のような発光部材を配置すると、発光した光束が撮像手
段11にも向かうので、ゴーストやフレアを発生して被
検眼Eの画質を低下させることになる。このために、視
標板14と撮像手段11の間に視標板14が発する光束
を遮断するフィルタ15を配置することにより、画質の
低下を防止することができる。
The optotype plate 14 is located between the imaging means 11 and the eye E to be examined.
When the light emitting member as described above is disposed, the emitted light flux goes to the image pickup means 11, so that a ghost or a flare is generated and the image quality of the eye E is deteriorated. For this reason, by arranging a filter 15 between the optotype plate 14 and the imaging means 11 for blocking the light beam emitted from the optotype plate 14, it is possible to prevent the image quality from deteriorating.

【0019】[0019]

【発明の効果】以上説明したように本発明に係る眼科撮
影装置は、蓄光性の塗料により形成した固視目標を用い
ることにより、分岐光路を設けることなく発光する固視
目標を光路中の任意の位置に設定することができ、光学
系を小さくして安価に構成することが可能となる。ま
た、配線が必要なくなり固視目標の挿脱を簡便に行うこ
とができるので操作性が向上する。
As described above, the ophthalmologic photographing apparatus according to the present invention uses a fixation target formed of a luminous paint so that a fixation target that emits light without providing a branching optical path can be set in the optical path. , And the optical system can be reduced in size and configured inexpensively. In addition, operability is improved because wiring is not required and the fixation target can be easily inserted and removed.

【図面の簡単な説明】[Brief description of the drawings]

【図1】実施例の構成図である。FIG. 1 is a configuration diagram of an embodiment.

【図2】固視目標の正面図である。FIG. 2 is a front view of a fixation target.

【図3】側面図である。FIG. 3 is a side view.

【図4】フィルタの正面図である。FIG. 4 is a front view of the filter.

【符号の説明】[Explanation of symbols]

1、16、17、19 光源 2 絞り 3、10、15 フィルタ 5 孔あきミラー 11 撮像手段 14、18 視標板 17、19 視標板照明用光源 20 画像制御手段 21 テレビモニタ 24 CPU DESCRIPTION OF SYMBOLS 1, 16, 17, 19 Light source 2 Aperture 3, 10, 15 Filter 5 Perforated mirror 11 Imaging means 14, 18 Optotype plate 17, 19 Light source for optotype plate illumination 20 Image control means 21 TV monitor 24 CPU

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 光源から発した光束を被検眼の眼底に導
く照明光学系と、該照明光学系により照明された眼底像
を撮像手段に導く撮像光学系と、蓄光性塗料により形成
した固視目標と、該固視目標を前記照明光学系又は撮像
光学系中に挿脱する切換手段と、前記固視目標が光路外
に離脱しているときに前記固視目標を照明する照明手段
とを有することを特徴とする眼科撮影装置。
An illumination optical system for guiding a light beam emitted from a light source to a fundus of an eye to be inspected, an imaging optical system for guiding a fundus image illuminated by the illumination optical system to imaging means, and fixation formed by a luminous paint. A target, switching means for inserting and removing the fixation target into the illumination optical system or the imaging optical system, and illumination means for illuminating the fixation target when the fixation target is out of the optical path. An ophthalmologic photographing apparatus comprising:
【請求項2】 前記固視目標と前記撮像手段との間に前
記固視目標が発する波長の光束を遮断するフィルタ手段
を設けた請求項1に記載の眼科撮影装置。
2. The ophthalmologic photographing apparatus according to claim 1, further comprising a filter between the fixation target and the imaging unit for blocking a light beam having a wavelength emitted by the fixation target.
JP10048935A 1998-02-13 1998-02-13 Ophthalmology photographing device Pending JPH11225970A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10048935A JPH11225970A (en) 1998-02-13 1998-02-13 Ophthalmology photographing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10048935A JPH11225970A (en) 1998-02-13 1998-02-13 Ophthalmology photographing device

Publications (1)

Publication Number Publication Date
JPH11225970A true JPH11225970A (en) 1999-08-24

Family

ID=12817129

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10048935A Pending JPH11225970A (en) 1998-02-13 1998-02-13 Ophthalmology photographing device

Country Status (1)

Country Link
JP (1) JPH11225970A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7320519B2 (en) 2006-04-04 2008-01-22 Canon Kabushiki Kaisha Ophthalmic apparatus
JP2015160103A (en) * 2014-02-28 2015-09-07 株式会社トプコン Optometrist imaging device and optical unit attachable to the same
US10085638B2 (en) 2013-08-07 2018-10-02 Carl Zeiss Meditec, Inc. Optical coherence tomography system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7320519B2 (en) 2006-04-04 2008-01-22 Canon Kabushiki Kaisha Ophthalmic apparatus
US10085638B2 (en) 2013-08-07 2018-10-02 Carl Zeiss Meditec, Inc. Optical coherence tomography system
EP3030134B1 (en) * 2013-08-07 2019-12-25 Carl Zeiss Meditec AG Optical coherence tomography system
JP2015160103A (en) * 2014-02-28 2015-09-07 株式会社トプコン Optometrist imaging device and optical unit attachable to the same
US10028655B2 (en) 2014-02-28 2018-07-24 Kabushiki Kaisha Topcon Ophthalmologic imaging apparatus and optical unit attachable to the same

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