JPS6338502U - - Google Patents

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Publication number
JPS6338502U
JPS6338502U JP13167386U JP13167386U JPS6338502U JP S6338502 U JPS6338502 U JP S6338502U JP 13167386 U JP13167386 U JP 13167386U JP 13167386 U JP13167386 U JP 13167386U JP S6338502 U JPS6338502 U JP S6338502U
Authority
JP
Japan
Prior art keywords
light source
blinking
oscillator
fixation
fixation target
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
Application number
JP13167386U
Other languages
English (en)
Other versions
JPH0342884Y2 (ja
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 filed Critical
Priority to JP1986131673U priority Critical patent/JPH0342884Y2/ja
Publication of JPS6338502U publication Critical patent/JPS6338502U/ja
Application granted granted Critical
Publication of JPH0342884Y2 publication Critical patent/JPH0342884Y2/ja
Expired legal-status Critical Current

Links

Description

【図面の簡単な説明】
第1図は、本考案に係る眼科器械用固視装置の
第1実施例の光学系図、第2図は本考案に係る光
源の点灯周期を示す図、第3図は第1図に示す発
光ダイオードによつて形成された固視標像の位置
を示す図、第4図は第1図に示す被検眼の眼底に
対する固視標像の光学的共役点の位置関係を示す
説明図、第5図は本考案に係る眼科器械用固視装
置の第2実施例を説明するための光学系図、第6
図は第5図に示す被検眼の眼底と固視標像との光
学的共役点の関係を説明するための図、第7図は
本考案に係る眼科器械用固視装置の第2実施例を
の発光ダイオードによつて形成された固視標像を
示す図である。 10……眼科器械用固視装置の光学系、11…
…投影レンズ、15,16,17……発光ダイオ
ード、12,13,14……ハーフミラー、21
……発振器、22……スイツチング回路、O
…光軸、O……光軸。

Claims (1)

  1. 【実用新案登録請求の範囲】 (1) 光源の発光に基づいて測定光軸上に複数個
    の固視標像を提示する固視標像提示手段と、前記
    光源を点滅させる点滅手段とを備えていることを
    特徴とする眼科器械用固視装置。 (2) 前記点滅手段を、発振器と該発振器の発振
    出力により前記光源をオン・オフさせるスイツチ
    ング回路とにより構成したことを特徴とする実用
    新案登録請求の範囲第1項に記載の眼科器械用固
    視装置。
JP1986131673U 1986-08-28 1986-08-28 Expired JPH0342884Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986131673U JPH0342884Y2 (ja) 1986-08-28 1986-08-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986131673U JPH0342884Y2 (ja) 1986-08-28 1986-08-28

Publications (2)

Publication Number Publication Date
JPS6338502U true JPS6338502U (ja) 1988-03-12
JPH0342884Y2 JPH0342884Y2 (ja) 1991-09-09

Family

ID=31030348

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986131673U Expired JPH0342884Y2 (ja) 1986-08-28 1986-08-28

Country Status (1)

Country Link
JP (1) JPH0342884Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0455304U (ja) * 1990-09-13 1992-05-12

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5434593A (en) * 1977-08-24 1979-03-14 Tokyo Optical Infrared ray refractometer
JPS5668428A (en) * 1979-11-09 1981-06-09 Tokyo Optical Refraction force measuring apparatus
JPS5784037A (en) * 1980-10-31 1982-05-26 D L Guyton Ophthalmic test apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5434593A (en) * 1977-08-24 1979-03-14 Tokyo Optical Infrared ray refractometer
JPS5668428A (en) * 1979-11-09 1981-06-09 Tokyo Optical Refraction force measuring apparatus
JPS5784037A (en) * 1980-10-31 1982-05-26 D L Guyton Ophthalmic test apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0455304U (ja) * 1990-09-13 1992-05-12

Also Published As

Publication number Publication date
JPH0342884Y2 (ja) 1991-09-09

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