JPS5973904U

JPS5973904U - fundus camera

Info

Publication number: JPS5973904U
Application number: JP16954782U
Authority: JP
Inventors: 荒木　直幹
Original assignee: オリンパス光学工業株式会社
Priority date: 1982-11-09
Filing date: 1982-11-09
Publication date: 1984-05-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案による眼底カメラの一実施例の電装ボッ
クスの斜視図、第２図は上記実施例の制御回路のブロッ
ク図、第３図は上記制御回路による作動状態を示すタイ
ムチャート、第４図は第一の実施例の制御回路のブロッ
ク図である。１・・・・・・電装ボックス、２・・間第−スイッチ、
３・・・・・・第二スイッチ、４．５・・・轡インバー
ター、６・・・・・・エキサイタ−フィルター駆動回路
、７・・・・・・ソレノイド、８・・曲螢光用エキサイ
ターフィルター、９・・・・・・ＮＡＮＤ回路、１０・
曲・インバーター、１１・・・・・・バリアフィルター
駆動回路、１２・・・・・・ソレノ　　・イド、１３・
・・・・・バリアフィルター、１４・・曲観察光量制御
回路、１５・・・・・・観察光源、１６・・曲フリップ
フロップ、１７・・曲螢光観察用タイマー、１８・・・
・・・表示器。FIG. 1 is a perspective view of an electrical box of an embodiment of the fundus camera according to the present invention, FIG. 2 is a block diagram of the control circuit of the above embodiment, FIG. 3 is a time chart showing the operating state of the control circuit, and FIG. FIG. 4 is a block diagram of the control circuit of the first embodiment. 1...Electrical box, 2...In-between switch,
3... Second switch, 4.5... Inverter, 6... Exciter filter drive circuit, 7... Solenoid, 8... Exciter for curved light. Filter, 9...NAND circuit, 10.
Song/Inverter, 11... Barrier filter drive circuit, 12... Solenoid, 13.
...Barrier filter, 14.. Tuned observation light amount control circuit, 15.. Observation light source, 16.. Tuned flip-flop, 17.. Timer for tuned fluorescence observation, 18..
···display.

Claims

[Scope of utility model registration request]

A fundus camera in which a fluorescent exciter filter and a barrier filter can be automatically inserted into and removed from an illumination optical path and an observation optical path, respectively, include a first switch and a second switch disposed in an electrical box; ON
・By turning OFF, the fluorescent exciter filter is inserted into and removed from the illumination optical path, and by turning the second switch ON and OFF, the barrier filter is inserted into and removed from the observation optical path and the amount of observation light is increased or decreased. A fundus camera characterized by comprising a control circuit that operates a timer for fluorescence observation and starts and stops a display by turning on one of the second switches and turning off the first switch.