JPS607803U

JPS607803U - Fixation target moving device for fundus camera

Info

Publication number: JPS607803U
Application number: JP9935083U
Authority: JP
Inventors: 宮原　則行
Original assignee: オリンパス光学工業株式会社
Priority date: 1983-06-29
Filing date: 1983-06-29
Publication date: 1985-01-19
Also published as: JPS6311931Y2

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図は従来の固視標移動装置の指標桿の可動空間を示
す概略図、第２図は本考案による固視標移動装置を備え
た眼底カメラの光学系を示す概略図、第３図は本考案に
よる固視標移動装置の一実施例を示す図てａは一部破断
正面図１．ｂはＰ−Ｐ線断面図、Ｃは矢印Ｑ方向の側面
図：ｄは規制板の他の構成例を示すＣと同様の図、第４
図は第３図の装置による指標桿の可動空間を示す斜視図
、第５図は指標桿の他の構成例を示す図、第６図は第５
図の指標桿の可動空間を示す斜視図、第７図は規制軸及
び規制板の他の構成例を示す斜視図である。１・・・・・・観察用光源、２・・・・・・集光レンズ
、３・・・・・・撮影用光源、４・・・・・・リングス
リット、５・曲・集光レンズ、６・・・・・・コンデン
サーレンズ、７・・曲反射鏡、８・・・・・・孔あき鏡
、９・・・・・・対物レンズ、１ｏ・・・・・・被検眼
、１１・・・・・・眼底、１２・・・・・・撮影レンズ
、１３・・・・・・接眼レンズ、１４・・・・・・固視
標、１５・・曲面視標移動装置、１６・・・・・・ガイ
ド枠、１７・・・・・・移動軸、１８・・・・・・キー
、１９・・・・・・操作枠、２ｏ・・曲規ルｌ軸、２１
・・・・・・操作ツマミ、２２・・量規制板、２３．２
５・・・・・・指標桿、２４・・曲止めネジ。Fig. 1 is a schematic diagram showing the movable space of the index rod of a conventional fixation target moving device, Fig. 2 is a schematic diagram showing the optical system of a fundus camera equipped with the fixation target moving device according to the present invention, and Fig. 3 1 shows an embodiment of the fixation target moving device according to the present invention; FIG. 1 is a partially cutaway front view; b is a sectional view taken along the line P-P, C is a side view in the direction of arrow Q; d is a diagram similar to C showing another example of the configuration of the regulating plate;
The figure is a perspective view showing the movable space of the index rod by the device shown in FIG. 3, FIG. 5 is a diagram showing another example of the configuration of the index rod, and FIG.
FIG. 7 is a perspective view showing the movable space of the index rod in the figure, and FIG. 7 is a perspective view showing another example of the structure of the regulating shaft and the regulating plate. 1... Light source for observation, 2... Condensing lens, 3... Light source for photography, 4... Ring slit, 5... Curved condensing lens , 6...Condenser lens, 7...Curved reflector, 8...Perforated mirror, 9...Objective lens, 1o...Eye to be examined, 11 .... Fundus, 12.. Photographing lens, 13.. Eyepiece lens, 14.. Fixation target, 15.. Curved surface target moving device, 16. ...Guide frame, 17...Movement axis, 18...Key, 19...Operation frame, 2o...Curve l axis, 21
......Operation knob, 22...Amount regulating plate, 23.2
5...Indicator rod, 24...Bending screw.

Claims

[Claims for Utility Model Registration] A fundus in which a fixation target for guiding the line of sight of a subject is arranged at a position conjugate with the fundus of an illumination optical system, and the fixation target is moved within the illumination light beam. A fixation target moving device for a camera, characterized in that - a member for regulating the movable space of the fixation target and the index rod is provided.