JPS5369032A - Automatic focus device - Google Patents

Automatic focus device

Info

Publication number
JPS5369032A
JPS5369032A JP14333776A JP14333776A JPS5369032A JP S5369032 A JPS5369032 A JP S5369032A JP 14333776 A JP14333776 A JP 14333776A JP 14333776 A JP14333776 A JP 14333776A JP S5369032 A JPS5369032 A JP S5369032A
Authority
JP
Japan
Prior art keywords
automatic focus
focus device
lens
pressure
conform
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.)
Pending
Application number
JP14333776A
Other languages
Japanese (ja)
Inventor
Yoshio Kawamura
Toshiaki Kita
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14333776A priority Critical patent/JPS5369032A/en
Publication of JPS5369032A publication Critical patent/JPS5369032A/en
Pending legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)

Abstract

PURPOSE: To conform the focal plane with the disk plane at all times by detecting the distance as pressure by means of a detector of the air micrometer system provided below the lens, and by moving the lens up and down by the use of the detected pressure.
COPYRIGHT: (C)1978,JPO&Japio
JP14333776A 1976-12-01 1976-12-01 Automatic focus device Pending JPS5369032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14333776A JPS5369032A (en) 1976-12-01 1976-12-01 Automatic focus device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14333776A JPS5369032A (en) 1976-12-01 1976-12-01 Automatic focus device

Publications (1)

Publication Number Publication Date
JPS5369032A true JPS5369032A (en) 1978-06-20

Family

ID=15336426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14333776A Pending JPS5369032A (en) 1976-12-01 1976-12-01 Automatic focus device

Country Status (1)

Country Link
JP (1) JPS5369032A (en)

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