PROJECTION TYPE VIDEO DISPLAY APPARATUS
PROBLEM TO BE SOLVED: To provide a thin projection type video display apparatus having a highly precise structure with high strength. SOLUTION: This projection type video display apparatus includes: a screen 5 for projecting images, a laser beam source 1, a laser beam source driving circuit 6, and a...
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| creator | KISHIMA TAKUMI KOJIMA TAKASHI KADOWAKI KAZUO MIYATA AKIHISA TODE HIDEKAZU |
| description | PROBLEM TO BE SOLVED: To provide a thin projection type video display apparatus having a highly precise structure with high strength. SOLUTION: This projection type video display apparatus includes: a screen 5 for projecting images, a laser beam source 1, a laser beam source driving circuit 6, and a TV circuit 7 arranged behind a central part of the screen 5, an optical engine 3 including a display device 4 arranged behind a lower part of the screen 5 and driven by the TV circuit, and optical fibers 2 for transmitting the illumination light emitted from the laser beam source 1 to the display device 4. An outer peripheral part of the screen 5 is held by a screen frame 8. The optical engine 3 is installed in an optical engine base 9 connecting its front side with a lower side of the screen frame 8 and extended behind the lower side. The laser beam source 1, the laser beam source driving circuit 6, and the TV circuit 7 are provided on a plate member 12 installed between at least two diagonal braces 10a for connecting both end parts of an upper side of the screen frame 8 with a rear end part of the optical engine base 9. COPYRIGHT: (C)2009,JPO&INPIT |
| format | Patent |
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SOLUTION: This projection type video display apparatus includes: a screen 5 for projecting images, a laser beam source 1, a laser beam source driving circuit 6, and a TV circuit 7 arranged behind a central part of the screen 5, an optical engine 3 including a display device 4 arranged behind a lower part of the screen 5 and driven by the TV circuit, and optical fibers 2 for transmitting the illumination light emitted from the laser beam source 1 to the display device 4. An outer peripheral part of the screen 5 is held by a screen frame 8. The optical engine 3 is installed in an optical engine base 9 connecting its front side with a lower side of the screen frame 8 and extended behind the lower side. The laser beam source 1, the laser beam source driving circuit 6, and the TV circuit 7 are provided on a plate member 12 installed between at least two diagonal braces 10a for connecting both end parts of an upper side of the screen frame 8 with a rear end part of the optical engine base 9. 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The laser beam source 1, the laser beam source driving circuit 6, and the TV circuit 7 are provided on a plate member 12 installed between at least two diagonal braces 10a for connecting both end parts of an upper side of the screen frame 8 with a rear end part of the optical engine base 9. 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SOLUTION: This projection type video display apparatus includes: a screen 5 for projecting images, a laser beam source 1, a laser beam source driving circuit 6, and a TV circuit 7 arranged behind a central part of the screen 5, an optical engine 3 including a display device 4 arranged behind a lower part of the screen 5 and driven by the TV circuit, and optical fibers 2 for transmitting the illumination light emitted from the laser beam source 1 to the display device 4. An outer peripheral part of the screen 5 is held by a screen frame 8. The optical engine 3 is installed in an optical engine base 9 connecting its front side with a lower side of the screen frame 8 and extended behind the lower side. The laser beam source 1, the laser beam source driving circuit 6, and the TV circuit 7 are provided on a plate member 12 installed between at least two diagonal braces 10a for connecting both end parts of an upper side of the screen frame 8 with a rear end part of the optical engine base 9. COPYRIGHT: (C)2009,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACCESSORIES THEREFOR APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM CINEMATOGRAPHY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY HOLOGRAPHY PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION |
| title | PROJECTION TYPE VIDEO DISPLAY APPARATUS |
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