JPS57196205A - Lens of optical machine capable of using focusing mirror - Google Patents

Lens of optical machine capable of using focusing mirror

Info

Publication number
JPS57196205A
JPS57196205A JP8134081A JP8134081A JPS57196205A JP S57196205 A JPS57196205 A JP S57196205A JP 8134081 A JP8134081 A JP 8134081A JP 8134081 A JP8134081 A JP 8134081A JP S57196205 A JPS57196205 A JP S57196205A
Authority
JP
Japan
Prior art keywords
lens
frame
focusing mirror
focus
machine capable
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
JP8134081A
Other languages
Japanese (ja)
Other versions
JPH0119562B2 (en
Inventor
Masayuki Naito
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.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus Optical 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 Olympus Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP8134081A priority Critical patent/JPS57196205A/en
Publication of JPS57196205A publication Critical patent/JPS57196205A/en
Publication of JPH0119562B2 publication Critical patent/JPH0119562B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)

Abstract

PURPOSE:To make it unnecessary to focus a lens again after insertion of a focusing mirror, by inserting a focusing mirror frame having a step to the aperture of a photographic eyepiece lens frame and moving the photographic eyepiece lens by a prescribed quantity to correct the out of focus of the lens. CONSTITUTION:A field lens inside frame 12 supporting a field lens 7 is provided in an eyepiece lens frame 11 supporting an eye lens 8 so that the field lens inside frame 12 can be moved forward and backward in the direction of the optical axis, and this inside frame 12 is pressed to the right by a spring 13. A step (d) for moving the lens inside frame 12 by a prescribed quantity is provided on a focusing mirror frame 14 in accordance with the thickness of a focusing mirror. When the focusing mirror frame 14 is inserted to an aperture 11a of the lens frame 11, the field lens inside frame 12 is moved to the left against the spring 13 because of the existence of the step (d), and consequently, the lens 7 is moved to the left also to correct the out of focus of the lens, and thus, it is unnecessary to focus the lens again after the focusing mirror for transferring a scale or the like together is inserted.
JP8134081A 1981-05-28 1981-05-28 Lens of optical machine capable of using focusing mirror Granted JPS57196205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8134081A JPS57196205A (en) 1981-05-28 1981-05-28 Lens of optical machine capable of using focusing mirror

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8134081A JPS57196205A (en) 1981-05-28 1981-05-28 Lens of optical machine capable of using focusing mirror

Publications (2)

Publication Number Publication Date
JPS57196205A true JPS57196205A (en) 1982-12-02
JPH0119562B2 JPH0119562B2 (en) 1989-04-12

Family

ID=13743635

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8134081A Granted JPS57196205A (en) 1981-05-28 1981-05-28 Lens of optical machine capable of using focusing mirror

Country Status (1)

Country Link
JP (1) JPS57196205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60129734A (en) * 1983-12-19 1985-07-11 Canon Inc Projecting lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60129734A (en) * 1983-12-19 1985-07-11 Canon Inc Projecting lens
JPH0250452B2 (en) * 1983-12-19 1990-11-02 Canon Kk

Also Published As

Publication number Publication date
JPH0119562B2 (en) 1989-04-12

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