JPS6411211A - Lens adjusting mechanism for viewfinder - Google Patents

Lens adjusting mechanism for viewfinder

Info

Publication number
JPS6411211A
JPS6411211A JP16817087A JP16817087A JPS6411211A JP S6411211 A JPS6411211 A JP S6411211A JP 16817087 A JP16817087 A JP 16817087A JP 16817087 A JP16817087 A JP 16817087A JP S6411211 A JPS6411211 A JP S6411211A
Authority
JP
Japan
Prior art keywords
lens
adjusting mechanism
move
focal length
size
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
JP16817087A
Other languages
Japanese (ja)
Inventor
Masanori Takeuchi
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP16817087A priority Critical patent/JPS6411211A/en
Publication of JPS6411211A publication Critical patent/JPS6411211A/en
Pending legal-status Critical Current

Links

Landscapes

  • Viewfinders (AREA)
  • Lens Barrels (AREA)

Abstract

PURPOSE:To eliminate backlash at the time of the nonadjustment of focal length and to reduce the size of a lens adjusting mechanism by molding a circular lens out of glass and providing the adjusting mechanism which varies the focal length according to its shape. CONSTITUTION:The glass lens 2 is used instead of a conventional plastic lens, a lens moving groove 3 is provided so as to move the glass lens 2, and the lens moves in this groove 3 to vary the focal length. Then pressers 4 for movement are provided on the right and left sides of the external frame of the lens adjusting mechanism and pressed with hands, and a sprig which is in the lens adjusting mechanism and fixes the lens 2 is released to allow the lens 2 to move in the groove direction of the lens. Consequently, when the lens does not move, the lens is fixed by the spring, so there is no backlash and an internal frame is reducible in size, so the lens adjusting mechanism can be reduced in size.
JP16817087A 1987-07-06 1987-07-06 Lens adjusting mechanism for viewfinder Pending JPS6411211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16817087A JPS6411211A (en) 1987-07-06 1987-07-06 Lens adjusting mechanism for viewfinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16817087A JPS6411211A (en) 1987-07-06 1987-07-06 Lens adjusting mechanism for viewfinder

Publications (1)

Publication Number Publication Date
JPS6411211A true JPS6411211A (en) 1989-01-13

Family

ID=15863100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16817087A Pending JPS6411211A (en) 1987-07-06 1987-07-06 Lens adjusting mechanism for viewfinder

Country Status (1)

Country Link
JP (1) JPS6411211A (en)

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