JPS6432839A - Subjective ophthalmoscopic apparatus - Google Patents

Subjective ophthalmoscopic apparatus

Info

Publication number
JPS6432839A
JPS6432839A JP62189636A JP18963687A JPS6432839A JP S6432839 A JPS6432839 A JP S6432839A JP 62189636 A JP62189636 A JP 62189636A JP 18963687 A JP18963687 A JP 18963687A JP S6432839 A JPS6432839 A JP S6432839A
Authority
JP
Japan
Prior art keywords
spherical
power
spherical lens
selecting
lenses
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
JP62189636A
Other languages
Japanese (ja)
Other versions
JP2806428B2 (en
Inventor
Akihiro Hayashi
Masanao Fujieda
Hirohisa Terabe
Toshiro Kobayashi
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.)
Nidek Co Ltd
Original Assignee
Nidek Co Ltd
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 Nidek Co Ltd filed Critical Nidek Co Ltd
Priority to JP62189636A priority Critical patent/JP2806428B2/en
Publication of JPS6432839A publication Critical patent/JPS6432839A/en
Application granted granted Critical
Publication of JP2806428B2 publication Critical patent/JP2806428B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Eye Examination Apparatus (AREA)

Abstract

PURPOSE:To obtain an apparatus free from an operating mistake and having good operability, by providing a measuring item selecting means for selecting one of measuring items and a means using a numerical value change-over means for the whole or a part of the selected measuring items in common. CONSTITUTION:An operating part is equipped with spherical power, astigmatism power, shaft angle, prism power up-and-down direction and prism power left-and- right direction selecting switches 41, 42, 43, 44, 45. For example, a spherical power selecting switch 41 is pushed to rotate a rotary encoder 48 and, on the basis of the rotary direction and angle of rotation of said encoder 48 at this time, a drive signal is emitted to a strong spherical lens change-over motor 63 and a weak spherical lens change-over motor 11 from a CPU 50 through an output circuit 53 and motor driving circuits 55, 56 and a strong spherical lens disc 5 and a weak spherical lens disc 6 rotate and a predetermined combination of the spherical lenses is selected to be set to a measuring optical shaft 1. 12 spherical lenses of a 3D unit are arranged to the strong spherical lens disc 5 and 12 lenses of 0.25D unit are arranged to the weak spherical lens disk 6 and a spherical power can be changed over within a range of -19- +16.75D at a 0.25D unit.
JP62189636A 1987-07-28 1987-07-28 Subjective optometry device Expired - Fee Related JP2806428B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62189636A JP2806428B2 (en) 1987-07-28 1987-07-28 Subjective optometry device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62189636A JP2806428B2 (en) 1987-07-28 1987-07-28 Subjective optometry device

Publications (2)

Publication Number Publication Date
JPS6432839A true JPS6432839A (en) 1989-02-02
JP2806428B2 JP2806428B2 (en) 1998-09-30

Family

ID=16244613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62189636A Expired - Fee Related JP2806428B2 (en) 1987-07-28 1987-07-28 Subjective optometry device

Country Status (1)

Country Link
JP (1) JP2806428B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5267059A (en) * 1990-03-16 1993-11-30 Ricoh Company, Ltd. Sheet scanner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60179036A (en) * 1984-02-28 1985-09-12 株式会社トプコン Optometry apparatus
JPS61171039U (en) * 1985-04-09 1986-10-23
JPS6231837A (en) * 1985-08-03 1987-02-10 Nippon Kogaku Kk <Nikon> Input device for photographing information of camera

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60179036A (en) * 1984-02-28 1985-09-12 株式会社トプコン Optometry apparatus
JPS61171039U (en) * 1985-04-09 1986-10-23
JPS6231837A (en) * 1985-08-03 1987-02-10 Nippon Kogaku Kk <Nikon> Input device for photographing information of camera

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5267059A (en) * 1990-03-16 1993-11-30 Ricoh Company, Ltd. Sheet scanner

Also Published As

Publication number Publication date
JP2806428B2 (en) 1998-09-30

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