JPH02102635A - Eyeground camera - Google Patents
Eyeground cameraInfo
- Publication number
- JPH02102635A JPH02102635A JP63255915A JP25591588A JPH02102635A JP H02102635 A JPH02102635 A JP H02102635A JP 63255915 A JP63255915 A JP 63255915A JP 25591588 A JP25591588 A JP 25591588A JP H02102635 A JPH02102635 A JP H02102635A
- Authority
- JP
- Japan
- Prior art keywords
- picture
- display
- still
- photographing
- camera
- 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.)
- Granted
Links
- 238000003384 imaging method Methods 0.000 claims description 8
- 230000003287 optical effect Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002911 mydriatic effect Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 210000004087 cornea Anatomy 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- -1 silver halide Chemical class 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Eye Examination Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、テレビカメラにより被検眼の眼底像を撮影・
記録する眼底カメラに関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention is a method for photographing and photographing a fundus image of an eye to be examined using a television camera.
This relates to a fundus camera for recording.
［従来の技術］
例えば、無散瞳眼底カメラにおける眼底静１ト像をテレ
ビ画像として映出する装置は、銀塩フィルムに記録され
る眼底像をモニタテレビに表示し。[Prior Art] For example, a device that displays a static fundus image from a non-mydriatic fundus camera as a television image displays the fundus image recorded on a silver halide film on a monitor television.
フィルム画像が正確に撮影されているか否かを確認でき
るように構成されている。It is configured so that it can be confirmed whether or not the film image has been accurately photographed.
しかし、静止画像表示と動画像表示の切り換えは眼底カ
メラを操作しながら画像記録装設を操作しなければなら
ず、操作が複雑になり、撮影又は測定後に次の観察状態
への移行が円滑に行えないという欠点がある。However, switching between still image display and moving image display requires operating the image recording device while operating the fundus camera, making the operation complicated and making it difficult to smoothly transition to the next observation state after shooting or measuring. The drawback is that it cannot be done.
［発明の目的］
本発明の目的は、動画像表示と静止画像表示の切り換え
を行い、操作が簡単で次の撮影及び測定を円滑に行うこ
とを可能にした眼底カメラを提供することにある。[Object of the Invention] An object of the present invention is to provide a fundus camera that can switch between a moving image display and a still image display, is easy to operate, and can smoothly perform the next photographing and measurement.
［発明の概要］
上述の目的を達成するための本発明の要旨は、被検眼の
所定部位を撮像する撮像手段と、該撮像手段の出力を直
接及び静止画像記録手段を介して接続した画像表示手段
と、該画像表示手段への表示内容を、前記撮像手段の出
力を直接表示する動画像と前記静Ｉｆ：画像記録手段に
記録された静と画像とに択一的に切り換える切換手段と
を有し、前記静止画像表示から動画像表示の切り換えは
次の撮像準備完了信号により行うようにしたすることを
特徴とする眼底カメラである。[Summary of the Invention] The gist of the present invention for achieving the above-mentioned object is to provide an image capturing means for capturing an image of a predetermined region of an eye to be examined, and an image display in which the output of the image capturing means is connected directly and via a still image recording means. means, and a switching means for selectively switching the display content on the image display means between a moving image directly displaying the output of the imaging means and a still image recorded in the still image recording means. The fundus camera is characterized in that the switching from the still image display to the moving image display is performed in response to a next imaging preparation completion signal.
［発明の実施例コ 本発明を図示の実施例に基づいて詳細に説明する。[Embodiments of the invention] The present invention will be explained in detail based on illustrated embodiments.
第１図は無ｆｆ！１．瞳眼底カメラの構成図である。被
検眼Ｅの限軸上に、対物レンズ１、穴開きミラー２、撮
影レンズ系３、近赤外カットフィルタ及びカラーフィル
タを有する回転式タレット４゜ＣＣＤ （ｃｈａｒｇｅ
ｃｏｕｐｌｅｄ ｄｅｖｉｃｅ）等の固体撮像素子か
ら成るテレビカメラ５が順次に配置され、穴開きミラー
２の反射方向の光軸上に、リレーレンズ６、リング状開
口部７ａを有するリングスリット７、グイクロイックミ
ラー８、コンデンサレンズ９、ストロボ管から成る撮影
光源１０が順次に配列され、更にグイクロイックミラー
８の反射方向の光軸上にコンデンサレンズ１１、フィラ
メントランプから成り近赤外光を発する観察光源１２が
配設されている。Figure 1 is free! 1. FIG. 2 is a configuration diagram of a pupil fundus camera. A rotary turret 4° CCD (charge
A television camera 5 consisting of a solid-state image pickup device such as a coupled device is arranged in sequence, and on the optical axis in the reflection direction of the perforated mirror 2, a relay lens 6, a ring slit 7 having a ring-shaped opening 7a, and a GIC. A photographing light source 10 consisting of a mirror 8, a condenser lens 9, and a strobe tube is arranged in sequence, and furthermore, on the optical axis in the direction of reflection of the gicroic mirror 8 is a condenser lens 11, and an observation light source consisting of a filament lamp and emitting near-infrared light. 12 are arranged.
駆動部の操作及び撮像信号の切り換えを行う表示制御回
路１４の駆動信号入力端子には、撮影スｒツチ１５、静
止画像記録装置１６、タイマ１７の出力が接続され、駆
動信号出力端子に・は静止画像記録袋２１１６、ストロ
ボ発光回路１８、フィルタ付回転式タレット４の駆動部
がそれぞれ接続されている。また、表示制御回路１４の
撮像信号入力端子には、テレビカメラ５及び静止画像記
録装置面１６の出力が、撮像信号出力端子にはテレビモ
ニタ１９がそれぞれ接続されている。更に、テレビカメ
ラ５の出力が静止画像記録装置１６に、タイマ設定回路
２０の出力がタイマ１７に、ストロボ発光回路１８の出
力が撮影光源１０に接続されている。The outputs of the photographing switch 15, the still image recording device 16, and the timer 17 are connected to the drive signal input terminal of the display control circuit 14, which operates the drive unit and switches the imaging signal. The still image recording bag 2116, the strobe light emitting circuit 18, and the driving section of the rotary turret with filter 4 are connected to each other. Further, the outputs of the television camera 5 and the still image recording device surface 16 are connected to the image pickup signal input terminal of the display control circuit 14, and the television monitor 19 is connected to the image pickup signal output terminal. Further, the output of the television camera 5 is connected to the still image recording device 16, the output of the timer setting circuit 20 is connected to the timer 17, and the output of the strobe light emitting circuit 18 is connected to the photographing light source 10.
第２図は操作中の眼底カメラの外観図であり、テーブル
２１の上にｔ５１図に示した光学系を設備した眼底カメ
ラ本体２２が固定され、その前方に対物レンズ１．後方
にテレごカメラ５が突出して設けられている。また、テ
ーブル２１に被検者Ａの頭部を固定する固定部材２３が
設けられ、テーブル２１上の検者Ｂ側にはアライメント
及びピント合わせを行うジョイステック２４が設けられ
、その上端に撮影スイッチ１５が取り付けられている。FIG. 2 is an external view of the fundus camera during operation. A fundus camera body 22 equipped with the optical system shown in FIG. t51 is fixed on a table 21, and in front of it is an objective lens 1. A tele camera 5 is provided protruding from the rear. Further, a fixing member 23 for fixing the head of the subject A is provided on the table 21, a joystick 24 for alignment and focusing is provided on the examiner B side of the table 21, and a photographing switch is provided at the upper end of the joystick 24. 15 is attached.
被検眼Ｅの眼底Ｅ「を観察する際には、被検者Ａの頭部
を固定部材２３によって被検眼Ｅが対物レンズ１の前方
に至るよう固定する。そして、ｉ察光源１２を発光する
とその光はコンデンサレンズ１１で集光され、グイクロ
イックミラー８で反射した後に、リングスリット７のリ
ング状開口部７ａを通過してリレーレンズ６により穴開
きミラー２の近傍に一旦結像する。その後に、穴開きミ
ラー２により左方に反射され、対物レンズ１で被検眼Ｅ
の角膜付近に再結像し眼底Ｅｆを照明する。照明光の眼
底Ｅｆによる反射光は、対物レンズ１で穴開きミラー２
の穴部に集光され、穴部を通過した後に撮影レンズ系３
で再び集光され、タレット４を介してテレビカメラ５に
眼底像を結像し、テレビカメラ５の出力は表示制御回路
１４を介して眼底像Ｅａの動画像としてテレビモニタ１
９に映出される。検者はこの眼底像Ｅａを観察しながら
、ジョイステック２４を用いてアライメントやピント合
わせを行う、このとき、静止画像記録装置１６は表示制
御回路１４により録画準備状態となっている。When observing the fundus E of the eye E to be examined, the head of the examinee A is fixed by the fixing member 23 so that the eye E to be examined is in front of the objective lens 1. The light is condensed by a condenser lens 11, reflected by a gicroic mirror 8, passes through a ring-shaped opening 7a of a ring slit 7, and is once imaged near the perforated mirror 2 by a relay lens 6. After that, it is reflected to the left by the perforated mirror 2, and the eye to be examined E is reflected by the objective lens 1.
The image is re-focused near the cornea of the eye and illuminates the fundus Ef. The reflected light from the fundus Ef of the illumination light is passed through the objective lens 1 to the perforated mirror 2.
After passing through the hole, the light is focused on the photographing lens system 3.
The light is focused again at the turret 4 to form a fundus image on the TV camera 5, and the output of the TV camera 5 is sent to the TV monitor 1 as a moving image of the fundus image Ea via the display control circuit 14.
It will be shown on 9th. The examiner performs alignment and focusing using the joystick 24 while observing the fundus image Ea. At this time, the still image recording device 16 is in a recording preparation state by the display control circuit 14.
また、被検眼Ｅの眼底Ｅｆを撮影する際には、撮影光源
１０が瞬時的に発光し、その光はコンデンサレンズ９で
集光され、グイクロイックミラー８を透過してその後は
観察用光束と同様に進行し眼底Ｅｆを照明する。なお、
タレット４の近赤外カットフィルタは撮影時のみ光路上
に介在し、眼底Ｅｆの反射光の近赤外光成分をカットし
、テレビカメラ５は眼底Ｅｆの良好なカラー信号を得る
ことができる。なお、このテレビカメラ５の撮像素子は
可視光及び近赤外光に感度を有する撮像管に置換するこ
ともできる。Furthermore, when photographing the fundus Ef of the eye E to be examined, the photographing light source 10 emits light instantaneously, the light is condensed by the condenser lens 9, passes through the guichroic mirror 8, and then becomes a light beam for observation. The process proceeds in the same manner as above to illuminate the fundus Ef. In addition,
The near-infrared cut filter of the turret 4 is interposed on the optical path only during photographing, cuts the near-infrared light component of the light reflected from the fundus Ef, and the television camera 5 can obtain a good color signal of the fundus Ef. Note that the image pickup device of the television camera 5 may be replaced with an image pickup tube that is sensitive to visible light and near-infrared light.
型底撮影のために検者Ｂが撮影スイッチ１５を押すと、
撮影スイッチ１５からの信号が表示制御回路１４に入力
され、静止画像記録装置１６に録画開始信号を送る。そ
して、静止画像記録装置１６と同期して、タレット４の
近赤外カットフィルタを光路に挿入し、かつ撮影光源１
０が発光し眼底Ｅｆの反射像をテレビカメラ５に導き、
テレビカメラ５からの撮像信号を静止画像記録装置１６
に取り込んで録画を行う。When examiner B presses the photographing switch 15 to photograph the bottom of the mold,
A signal from the photographing switch 15 is input to the display control circuit 14, and a recording start signal is sent to the still image recording device 16. Then, in synchronization with the still image recording device 16, the near-infrared cut filter of the turret 4 is inserted into the optical path, and the photographing light source 1
0 emits light and guides the reflected image of the fundus Ef to the television camera 5,
A still image recording device 16 captures the image signal from the television camera 5.
and record it.
静止画像記録装置１６としては、例えば近年開発され実
用化されたスチルビデオカメラ用の録画装置が用いられ
、スチルビデオフロッピディスクに画像が記録される。As the still image recording device 16, for example, a recording device for a still video camera that has been developed and put into practical use in recent years is used, and images are recorded on a still video floppy disk.
この他にも静止画像記録装置１６には、光カード記録装
置、光デイスク記録装置も画像記録装置として使用する
ことができる。In addition to this, an optical card recording device or an optical disk recording device can also be used as an image recording device for the still image recording device 16.
以上の録画動作が終了すると、静止画像記録装置１６は
撮影した眼底像Ｅａの撮像信号を表示制御回路１４を介
してテレビモニタ１９に送り、テレビモニタ１９に眼底
像Ｅａを映出する。ここで、検者Ｂはテレビモニタ１９
を見て記録された静止画像である眼底像Ｅａのピント撮
影部位、フレア等の確認ができる。When the above recording operation is completed, the still image recording device 16 sends an imaging signal of the photographed fundus image Ea to the television monitor 19 via the display control circuit 14, and displays the fundus image Ea on the television monitor 19. Here, examiner B is watching the TV monitor 19.
It is possible to confirm the focus area, flare, etc. of the fundus image Ea, which is a still image recorded by looking at the image.
続いて、撮影後はタイマ１７に設定されている時間だけ
表示制御回路１４を介して静止画像をテレビモニタ１９
に表示し、自動的に動画像に切り換えるようにする。ま
た、タイマ１７としてストロボコンデンサを充電完了信
号を使うこともでき、安価で容易に実施が可能である。Subsequently, after shooting, the still image is displayed on the television monitor 19 via the display control circuit 14 for the time set in the timer 17.
display and automatically switch to a video image. Further, the charging completion signal of the strobe capacitor can be used as the timer 17, which is inexpensive and easy to implement.
この切り換えにより、テレビモニタ１９は再び動画像を
映出し、静止画像記録装置１６はスチルビデオフロッピ
ディスク上で１フレーム進み、次の撮影・記録が可能な
状態に戻る。By this switching, the television monitor 19 displays a moving image again, the still image recording device 16 advances one frame on the still video floppy disk, and returns to a state in which the next photographing/recording is possible.
［発明の効果］
以上説明したように本発明に係る眼底カメラは、動画像
表示と静止画像表示と切り換えを自動的に行うことによ
り、静止画像記録装置を眼底カメラと同時に操作する煩
雑さを省き、撮影状態が容易に確認できる効果があり、
集団検診等で特に有利さが発揮できる。[Effects of the Invention] As explained above, the fundus camera according to the present invention eliminates the trouble of operating the still image recording device at the same time as the fundus camera by automatically switching between moving image display and still image display. , which has the effect of allowing you to easily check the shooting status.
This can be particularly advantageous in group medical examinations, etc.
図面は本発明に係る眼１カメラの一実施例を示し、第１
図は無散瞳限底カメラの構成図、第２図はその外観図で
ある。
符号１は対物レンズ、２は穴開きミラー、３は撮影レン
ズ系、４はタレット、５はテレビカメラ、６はリレーレ
ンズ、７はリングスリット、８はグイクロイックミラー
、１０は撮影光源、１２は観察光源、１４は表示制御回
路、１５は撮影スイッチ、１６は静止画像記録装置、１
７はタイマ、１８はストロボ発光回路、１９はテレビモ
ニタ１２０はタイマ設定回路、２１はテーブル、２２は
眼底カメラ本体、２３は固定部材、２４はジョイステッ
クである。
特許出願人 キャノン株式会社The drawings show an embodiment of a single-eye camera according to the present invention.
The figure is a configuration diagram of a non-mydriatic limit-bottom camera, and FIG. 2 is an external view thereof. Reference numeral 1 is an objective lens, 2 is a mirror with a hole, 3 is a photographic lens system, 4 is a turret, 5 is a television camera, 6 is a relay lens, 7 is a ring slit, 8 is a glaucroic mirror, 10 is a photographic light source, 12 1 is an observation light source, 14 is a display control circuit, 15 is a photographing switch, 16 is a still image recording device, 1
7 is a timer, 18 is a strobe light emitting circuit, 19 is a television monitor 120 is a timer setting circuit, 21 is a table, 22 is a fundus camera body, 23 is a fixing member, and 24 is a joystick. Patent applicant Canon Co., Ltd.
Claims (1)
段の出力を直接及び静止画像記録手段を介して接続した
画像表示手段と、該画像表示手段への表示内容を、前記
撮像手段の出力を直接表示する動画像と前記静止画像記
録手段に記録された静止画像とに択一的に切り換える切
換手段とを有し、前記静止画像表示から動画像表示の切
り換えは次の撮像準備完了信号により行うようにしたこ
とを特徴とする眼底カメラ。1. An imaging means for imaging a predetermined part of the eye to be examined; an image display means to which the output of the imaging means is connected directly and via a still image recording means; It has a switching means for selectively switching between a moving image for directly displaying the output and a still image recorded in the still image recording means, and switching from the still image display to the moving image display is performed in response to the next imaging preparation completion signal. A fundus camera characterized in that it performs the following operations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63255915A JP2983023B2 (en) | 1988-10-13 | 1988-10-13 | Fundus camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63255915A JP2983023B2 (en) | 1988-10-13 | 1988-10-13 | Fundus camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02102635A true JPH02102635A (en) | 1990-04-16 |
| JP2983023B2 JP2983023B2 (en) | 1999-11-29 |
Family
ID=17285335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63255915A Expired - Fee Related JP2983023B2 (en) | 1988-10-13 | 1988-10-13 | Fundus camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2983023B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009000363A (en) * | 2007-06-22 | 2009-01-08 | Canon Inc | Ophthalmic photography apparatus and ophthalmic photography system |
| JP2012139567A (en) * | 2012-04-26 | 2012-07-26 | Canon Inc | Ophthalmologic photographing apparatus |
| JP2013099646A (en) * | 2013-02-28 | 2013-05-23 | Canon Inc | Ophthalmologic apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61156373U (en) * | 1984-11-30 | 1986-09-27 |
-
1988
- 1988-10-13 JP JP63255915A patent/JP2983023B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61156373U (en) * | 1984-11-30 | 1986-09-27 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009000363A (en) * | 2007-06-22 | 2009-01-08 | Canon Inc | Ophthalmic photography apparatus and ophthalmic photography system |
| JP2012139567A (en) * | 2012-04-26 | 2012-07-26 | Canon Inc | Ophthalmologic photographing apparatus |
| JP2013099646A (en) * | 2013-02-28 | 2013-05-23 | Canon Inc | Ophthalmologic apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2983023B2 (en) | 1999-11-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3408308B2 (en) | Fundus camera | |
| US20100309431A1 (en) | Fundus camera | |
| JPH08299278A (en) | Fundus camera | |
| JPH05192299A (en) | Fundus camera | |
| JP3024790B2 (en) | Fundus camera | |
| JP3618877B2 (en) | Ophthalmic image processing device | |
| JPH02102635A (en) | Eyeground camera | |
| JPS6349505B2 (en) | ||
| JPH1075932A (en) | Eyeground photographing device | |
| JPH10234673A (en) | Eyebottom camera | |
| JP2000107134A (en) | Ophthalmologic imaging apparatus | |
| JP2003210409A (en) | Fundus camera | |
| JP2000232961A (en) | Fundus camera | |
| JP3379598B2 (en) | Medical imaging equipment | |
| JP2000041946A (en) | Eye imaging apparatus | |
| JP2000296114A (en) | Eye imaging device | |
| JPH06205742A (en) | Fundus camera | |
| JP2003225208A (en) | Fundus camera | |
| JP3526959B2 (en) | Fundus camera | |
| JPH08150121A (en) | Eyeground camera | |
| JPH03195537A (en) | Ocular device | |
| JP2001258846A (en) | Ophthalmic photographic device | |
| JP3017243B2 (en) | Ophthalmic equipment | |
| JPH0323201Y2 (en) | ||
| JP2000287938A (en) | Eyegronds photographing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |