JPS5517131A - In-mirror optical system - Google Patents

In-mirror optical system

Info

Publication number
JPS5517131A
JPS5517131A JP8935578A JP8935578A JPS5517131A JP S5517131 A JPS5517131 A JP S5517131A JP 8935578 A JP8935578 A JP 8935578A JP 8935578 A JP8935578 A JP 8935578A JP S5517131 A JPS5517131 A JP S5517131A
Authority
JP
Japan
Prior art keywords
plane
optical system
semicircular
lens
reflection
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
JP8935578A
Other languages
Japanese (ja)
Inventor
Takashi Matsumaru
Shozo Ishiyama
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP8935578A priority Critical patent/JPS5517131A/en
Publication of JPS5517131A publication Critical patent/JPS5517131A/en
Pending legal-status Critical Current

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  • Lenses (AREA)

Abstract

PURPOSE: To reduce the size and weight of the entire optical system, by constituting with the plane including the optical axis of the optical system which is provided in the optical system symmetrical in rotation and used as the plane of reflection, and providing the aperture member together with the reflection member which reflects the luminous flux only once by the optical system.
CONSTITUTION: A lens symmetrical in rotation is cut by a plane containing the optical axis to form semicircular lenses LX1, LX2, LX3, and a plane of reflection Mx is provided in the sectional area of LX1, LX2, LX3, i.e., over the entire surface in the distance on the axis from the plane of object field side of semicircular lens LX1 to the plane of image field side of semicircular lens LX3, and an iris Sx is provided between the semicircular lens LX2 and semicircular lens LX3. The luminous flux from the object A penetrates through the semicircular lenses LX1 and LX2, and is defined by the iris Sx, and then reflected by the plane of reflection Mx to penetrate through the semicircular lens LX3, so that a stereoscopic image A' may be imaged on the image plane Fx.
COPYRIGHT: (C)1980,JPO&Japio
JP8935578A 1978-07-24 1978-07-24 In-mirror optical system Pending JPS5517131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8935578A JPS5517131A (en) 1978-07-24 1978-07-24 In-mirror optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8935578A JPS5517131A (en) 1978-07-24 1978-07-24 In-mirror optical system

Publications (1)

Publication Number Publication Date
JPS5517131A true JPS5517131A (en) 1980-02-06

Family

ID=13968393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8935578A Pending JPS5517131A (en) 1978-07-24 1978-07-24 In-mirror optical system

Country Status (1)

Country Link
JP (1) JPS5517131A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8820943B2 (en) 2008-03-28 2014-09-02 Seiko Epson Corporation Projection apparatus and image display apparatus having a reflector and an optical system with a cut off portion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8820943B2 (en) 2008-03-28 2014-09-02 Seiko Epson Corporation Projection apparatus and image display apparatus having a reflector and an optical system with a cut off portion

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