JPS55155312A - Automatic focus mover in optical machine including floating optical system - Google Patents

Automatic focus mover in optical machine including floating optical system

Info

Publication number
JPS55155312A
JPS55155312A JP6448479A JP6448479A JPS55155312A JP S55155312 A JPS55155312 A JP S55155312A JP 6448479 A JP6448479 A JP 6448479A JP 6448479 A JP6448479 A JP 6448479A JP S55155312 A JPS55155312 A JP S55155312A
Authority
JP
Japan
Prior art keywords
barrel
lens
switch
counter
machine including
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
JP6448479A
Other languages
Japanese (ja)
Other versions
JPS6151892B2 (en
Inventor
Yoshizo Ikegami
Susumu Fujita
Hiroshi Shimizu
Masahiko Konagaya
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.)
Konan Camera Research Institue Inc
Original Assignee
Konan Camera Research Institue Inc
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 Konan Camera Research Institue Inc filed Critical Konan Camera Research Institue Inc
Priority to JP6448479A priority Critical patent/JPS55155312A/en
Publication of JPS55155312A publication Critical patent/JPS55155312A/en
Publication of JPS6151892B2 publication Critical patent/JPS6151892B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Eye Examination Apparatus (AREA)
  • Focusing (AREA)

Abstract

PURPOSE: To make operation easy by power-operating the rear lens of the control lens-barrel through provision of a motor and counter.
CONSTITUTION: A control lens-barrel 3 is screwed into a floating lens-barrel 4, and the floating lens-barrel 4 is fixed to a movable frame 21. A reversible motor 30 is provided to the movable frame 21 and a porous disc 35 is provided to its revolving shaft 31. The light detected in a photo detecting part 37 through its small holes is supplied to a counter 39 through an amplifier 35. Now, when it is desired to move focus forward, a change-over switch 67 is set in the - side and conversely when it is desired to move the same backward, a switch 52 is instantaneously reset cooperatively when the switch 67 is set in + side. Next, if a start switch 63 is kept pushed until the focal plane reach a desired position, the reversible motor 30 is run in the designated direction by way of the driving circuit 66 and the focal plane is approached to the desired position. In this way, the operation may be made simple.
COPYRIGHT: (C)1980,JPO&Japio
JP6448479A 1979-05-23 1979-05-23 Automatic focus mover in optical machine including floating optical system Granted JPS55155312A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6448479A JPS55155312A (en) 1979-05-23 1979-05-23 Automatic focus mover in optical machine including floating optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6448479A JPS55155312A (en) 1979-05-23 1979-05-23 Automatic focus mover in optical machine including floating optical system

Publications (2)

Publication Number Publication Date
JPS55155312A true JPS55155312A (en) 1980-12-03
JPS6151892B2 JPS6151892B2 (en) 1986-11-11

Family

ID=13259530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6448479A Granted JPS55155312A (en) 1979-05-23 1979-05-23 Automatic focus mover in optical machine including floating optical system

Country Status (1)

Country Link
JP (1) JPS55155312A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59156208U (en) * 1983-04-05 1984-10-20 京セラ株式会社 Lens movement amount detection device
JP2018042877A (en) * 2016-09-16 2018-03-22 株式会社トプコン Corneal endothelial cell imaging apparatus and control method therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0168094U (en) * 1987-10-28 1989-05-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59156208U (en) * 1983-04-05 1984-10-20 京セラ株式会社 Lens movement amount detection device
JP2018042877A (en) * 2016-09-16 2018-03-22 株式会社トプコン Corneal endothelial cell imaging apparatus and control method therefor

Also Published As

Publication number Publication date
JPS6151892B2 (en) 1986-11-11

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