JPS5718173A - Television picture projection device - Google Patents
Television picture projection deviceInfo
- Publication number
- JPS5718173A JPS5718173A JP9317780A JP9317780A JPS5718173A JP S5718173 A JPS5718173 A JP S5718173A JP 9317780 A JP9317780 A JP 9317780A JP 9317780 A JP9317780 A JP 9317780A JP S5718173 A JPS5718173 A JP S5718173A
- Authority
- JP
- Japan
- Prior art keywords
- dichroic mirror
- luminous flux
- shape
- effective luminous
- substrate
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
PURPOSE:To reduce a cost of a dichroic mirror, by deleting an area which has not been used effectively as a rectangular substrate, making it a trapezoidal substrate, and increasing the number of mounting substrates by that portion. CONSTITUTION:When considering an effective luminous flux which is contrituted to image formation of a projection picture, and considering a sectional shape on a dichroic mirror 1R relating to the effective luminous flux of each color, it becomes a trapeziod ABCD as for an effective luminous flux of red and green, and becomes a trapezoid A'B'C'D' as for an effective luminous flux of blue. Accordingly, as for a shape of the dichroic mirror 1R for red reflection use, a hand drum type AEB'C' FD will do. In the same way, a shape of the dichroic mirror 1B for blue reflection use can also be made same as that of the hand drum type AEB'C'FD. Based on this idea, 1R and 1B are arranged in X-shape, respectively, are divided into two by a cross line 5, and the whole body is constituted of 4 trapezoidal plates. The number of mounting substrates can be increased by arraying this 4-divided trapezoidal substrate of 1R and 1B, in the form of a ring on a disklike substrate holder 7 in a vapor deposition device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9317780A JPS5718173A (en) | 1980-07-07 | 1980-07-07 | Television picture projection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9317780A JPS5718173A (en) | 1980-07-07 | 1980-07-07 | Television picture projection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5718173A true JPS5718173A (en) | 1982-01-29 |
JPH0151235B2 JPH0151235B2 (en) | 1989-11-02 |
Family
ID=14075285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9317780A Granted JPS5718173A (en) | 1980-07-07 | 1980-07-07 | Television picture projection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5718173A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5177171A (en) * | 1989-09-14 | 1993-01-05 | Asahi Kasei Kogyo Kabushiki Kaisha | Sulfonic acid group-containing polyurethane and a photosensitive resin composition containing the same |
-
1980
- 1980-07-07 JP JP9317780A patent/JPS5718173A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5177171A (en) * | 1989-09-14 | 1993-01-05 | Asahi Kasei Kogyo Kabushiki Kaisha | Sulfonic acid group-containing polyurethane and a photosensitive resin composition containing the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0151235B2 (en) | 1989-11-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS53115137A (en) | Projection-type color television device | |
GB1376907A (en) | Single-tube colour cameras | |
GB562334A (en) | Improvements in colour television apparatus | |
JPS5214417A (en) | Color addition optical device | |
JPS5718173A (en) | Television picture projection device | |
JPS55166605A (en) | Color filter | |
JPS56157186A (en) | Projecting device of television picture | |
GB1217984A (en) | Color video signal generating apparatus | |
JPS56160744A (en) | Braun tube | |
JPS5525025A (en) | Color filter for single tube color image pickup tube and production thereof | |
JPS5610982A (en) | Color image pickup element | |
JPS5721879A (en) | Solid state image pickup device | |
JPS53120332A (en) | Optical system of color separation prism for color television | |
JPS54148473A (en) | Cathode-ray tube | |
JPS5537088A (en) | Projection-type color television device | |
CA963070A (en) | Luminescent screen assemblies for post-deflection focusing type color picture tubes | |
JPS5630381A (en) | Image pickup unit | |
GB1362304A (en) | Exposure devices utilized to manufacture colour picture tubes | |
JPS58134593A (en) | Television picture projector | |
JPS55120286A (en) | Multitube projection type color television receiver | |
JPS5431270A (en) | Index-system color picture tube | |
JPS54115020A (en) | Color filter for color pick up unit | |
RU1545833C (en) | Input window of two-signal photoconductive camera tube | |
KR920006868Y1 (en) | Cathode ray tube for projector | |
JPS5552685A (en) | Projection-type color television picture receiver |