JPS6127516A - Rear conversion lens - Google Patents

Rear conversion lens

Info

Publication number
JPS6127516A
JPS6127516A JP14994884A JP14994884A JPS6127516A JP S6127516 A JPS6127516 A JP S6127516A JP 14994884 A JP14994884 A JP 14994884A JP 14994884 A JP14994884 A JP 14994884A JP S6127516 A JPS6127516 A JP S6127516A
Authority
JP
Japan
Prior art keywords
optical
lens
luminous flux
conversion lens
film
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
JP14994884A
Other languages
Japanese (ja)
Inventor
Hiroshi Takase
Original Assignee
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 Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP14994884A priority Critical patent/JPS6127516A/en
Priority claimed from DE19853525585 external-priority patent/DE3525585A1/en
Publication of JPS6127516A publication Critical patent/JPS6127516A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B15/00Optical objectives with means for varying the magnification
    • G02B15/02Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
    • G02B15/10Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by adding a part, e.g. close-up attachment
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B13/00Optical objectives specially designed for the purposes specified below

Abstract

PURPOSE:To make the constitution of a rear conversion lens simple and small in size by splitting a luminous flux from an interchangeable lens of a lens interchangeable type camera, by an optical splitter provided in the rear of an image forming optical system, and providing a photodetector at a conjugate position to the surface of a film. CONSTITUTION:A luminous flux which has beem made incident on an interchangeable lens 3 is condensed by the interchangeable lens 3, a part of said luminous flux is made to transmit through an optical splitting prism 12 through an image forming optical system 11 of a rear conversion lens 1, and an image is formed on a film surface 2a of a camera body 2. Also, a part of the luminous flux which has passed through the image forming optical system 11 of the rear conversion lens 1 is reflected by an optical splitting surface 12a of the optical splitting prism 12, and thereafter, emitted from the splitting prism 12, and an image is formed on a photodetector 13 provided at a conjugate position to the film surface 2a.
JP14994884A 1984-07-19 1984-07-19 Rear conversion lens Pending JPS6127516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14994884A JPS6127516A (en) 1984-07-19 1984-07-19 Rear conversion lens

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP14994884A JPS6127516A (en) 1984-07-19 1984-07-19 Rear conversion lens
DE19853525585 DE3525585A1 (en) 1984-07-19 1985-07-18 Lens unit for light transmission

Publications (1)

Publication Number Publication Date
JPS6127516A true JPS6127516A (en) 1986-02-07

Family

ID=15486079

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14994884A Pending JPS6127516A (en) 1984-07-19 1984-07-19 Rear conversion lens

Country Status (1)

Country Link
JP (1) JPS6127516A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6798586B1 (en) * 2001-10-30 2004-09-28 Foveon, Inc. Corrector optic compensating spherical and coma aberrations generated by a prism
JP2015034903A (en) * 2013-08-09 2015-02-19 キヤノン株式会社 Attachment lens and image capturing device having the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6798586B1 (en) * 2001-10-30 2004-09-28 Foveon, Inc. Corrector optic compensating spherical and coma aberrations generated by a prism
JP2015034903A (en) * 2013-08-09 2015-02-19 キヤノン株式会社 Attachment lens and image capturing device having the same

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