JPS5528013A - Episcope - Google Patents
EpiscopeInfo
- Publication number
- JPS5528013A JPS5528013A JP10038078A JP10038078A JPS5528013A JP S5528013 A JPS5528013 A JP S5528013A JP 10038078 A JP10038078 A JP 10038078A JP 10038078 A JP10038078 A JP 10038078A JP S5528013 A JPS5528013 A JP S5528013A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- rays
- reflecting mirror
- projected
- light source
- 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
- Projection Apparatus (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
PURPOSE: To let the optical axis from a light source intersect orthogonally to the object to be projected and perform effective utilization of rays, decrease in the capacity of light source, reduction in the diameter of projection lens and projection in a bright room by providing the light transmission part to the reflecting mirror interposed between the object to be projected and the light source.
CONSTITUTION: Rays from a light source 3 are entered to a condenser lens 5 via condensing and reflecting mirror 4, to be made to parallel rays which are then entered to a condenser lens 7 via reflecting mirror 6. From the lens 7, the rays are emitted so as to focus at the light transmission part 8a of the projecting are reflecting mirror 8, thence the rays transmit through the reflecting mirror 8 and Fresnel lens 11 and radiate the object to be projected 10A placed on a transparent stage 8 at a right angle. The rays having been reflected by the object to be projected 10A are condensed by the lens 11, are reflected by the reflecting mirror 8, are condensed by the projecting lens 12 disposed in the foucs position of the lens 11 and are projected to a screen 14.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10038078A JPS5528013A (en) | 1978-08-17 | 1978-08-17 | Episcope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10038078A JPS5528013A (en) | 1978-08-17 | 1978-08-17 | Episcope |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5528013A true JPS5528013A (en) | 1980-02-28 |
Family
ID=14272400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10038078A Pending JPS5528013A (en) | 1978-08-17 | 1978-08-17 | Episcope |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5528013A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4380380A (en) * | 1981-06-11 | 1983-04-19 | Back Frank G | Episcopic projector |
JPS59143906A (en) * | 1983-02-08 | 1984-08-17 | Mitsutoyo Mfg Co Ltd | Measuring projector |
JPH01176811A (en) * | 1987-12-31 | 1989-07-13 | Hiihaisuto Seiko Kk | Straightly operating guide bearing |
JPH06289485A (en) * | 1992-09-09 | 1994-10-18 | Randatsuku:Kk | Overhead projection and film thereof |
JPH0678949U (en) * | 1993-02-26 | 1994-11-04 | 株式会社ランダック | Projector |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS455690Y1 (en) * | 1967-10-31 | 1970-03-19 |
-
1978
- 1978-08-17 JP JP10038078A patent/JPS5528013A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS455690Y1 (en) * | 1967-10-31 | 1970-03-19 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4380380A (en) * | 1981-06-11 | 1983-04-19 | Back Frank G | Episcopic projector |
JPS59143906A (en) * | 1983-02-08 | 1984-08-17 | Mitsutoyo Mfg Co Ltd | Measuring projector |
JPH01176811A (en) * | 1987-12-31 | 1989-07-13 | Hiihaisuto Seiko Kk | Straightly operating guide bearing |
JPH0585769B2 (en) * | 1987-12-31 | 1993-12-08 | Hiihaisuto Seiko Kk | |
JPH06289485A (en) * | 1992-09-09 | 1994-10-18 | Randatsuku:Kk | Overhead projection and film thereof |
JPH0678949U (en) * | 1993-02-26 | 1994-11-04 | 株式会社ランダック | Projector |
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