JPS5517131A - In-mirror optical system - Google Patents
In-mirror optical systemInfo
- 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
Links
Landscapes
- 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
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)
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 |
-
1978
- 1978-07-24 JP JP8935578A patent/JPS5517131A/en active Pending
Cited By (1)
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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