ZA94898B - Television projection system - Google Patents
Television projection systemInfo
- Publication number
- ZA94898B ZA94898B ZA94898A ZA94898A ZA94898B ZA 94898 B ZA94898 B ZA 94898B ZA 94898 A ZA94898 A ZA 94898A ZA 94898 A ZA94898 A ZA 94898A ZA 94898 B ZA94898 B ZA 94898B
- Authority
- ZA
- South Africa
- Prior art keywords
- colour
- projection system
- lasers
- mixer
- screen
- Prior art date
Links
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 235000019646 color tone Nutrition 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/64—Circuits for processing colour signals
- H04N9/67—Circuits for processing colour signals for matrixing
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Projection Apparatus (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
A t.v. projection system provides a colour image on a screen (20) using light provided by three lasers (32, 42, 52), supplied to an optical device (60) for colour mixing, deflection and focussing in correspondence with a given television standard. The wavelengths of the light signals are 620 nm, 545 nm and 470 nm, the colour tones defined by colour value signals supplied from an input circuit to a mixer (20) converting them from the original base system for a phosphor television screen to a second base system for the laser projection system, each output signal (R', G', B') of the mixer being fed to a respective modulator (34, 44, 54) associated with one of the lasers.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4306797A DE4306797C1 (en) | 1993-03-04 | 1993-03-04 | Generating colour pixels of TV image - providing projection system using coloured lasers supplied with colour tone signals converted from phosphor screen base system to laser projection base system |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA94898B true ZA94898B (en) | 1994-08-23 |
Family
ID=6481946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA94898A ZA94898B (en) | 1993-03-04 | 1994-02-09 | Television projection system |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0614319B1 (en) |
KR (1) | KR0140825B1 (en) |
AT (1) | ATE151938T1 (en) |
DE (2) | DE4306797C1 (en) |
DK (1) | DK0614319T3 (en) |
ES (1) | ES2101210T3 (en) |
GR (1) | GR3023371T3 (en) |
UA (1) | UA26453C2 (en) |
ZA (1) | ZA94898B (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4339908C2 (en) * | 1993-11-23 | 1997-01-23 | Ldt Gmbh & Co | Method and device for pyramidal error compensation |
DE4432029C2 (en) * | 1994-09-08 | 1997-08-21 | Ldt Gmbh & Co | Laser color image display and projection device |
DE19504047C1 (en) * | 1995-02-08 | 1996-07-25 | Daimler Benz Ag | Laser system for color image projection |
DE19506595C1 (en) * | 1995-02-24 | 1996-02-01 | Schneider Rundfunkwerke Ag | Transformation of colour signals in colour video system |
DE19510423C2 (en) * | 1995-03-24 | 2001-04-26 | Linos Photonics Gmbh | Laser arrangement for internal resonance frequency mixing |
DE19546039A1 (en) * | 1995-12-09 | 1997-06-12 | Forsch Mineralische Und Metall | Screen, method for its production and method and device for displaying images on a screen |
DE19713433C2 (en) * | 1997-04-01 | 1999-02-25 | Ldt Gmbh & Co | Method and device for generating at least three light beams of different wavelengths, in particular for a colored image |
DE19805553A1 (en) * | 1998-02-11 | 1999-08-19 | Ldt Gmbh & Co | Measuring intensity of laser light |
WO1999056168A1 (en) | 1998-04-23 | 1999-11-04 | Linos Photonics Gmbh | Transverse electro-optic modulator |
DE19939617A1 (en) * | 1999-08-20 | 2001-03-29 | Deltamed Medizinprodukte Gmbh | Device and method for producing a three-dimensional object |
DE10252591B9 (en) * | 2002-11-12 | 2007-01-25 | Lumera Laser Gmbh | Method for imaging a video image with at least three laser beams |
DE102010034217A1 (en) * | 2010-08-07 | 2012-02-09 | Daimler Ag | Apparatus for generating images composed of pixels |
CN104181546B (en) * | 2014-08-25 | 2017-01-11 | 中国科学院武汉物理与数学研究所 | Color information acquisition and display method of color three-dimensional scanning laser radar |
JP6320440B2 (en) | 2015-08-04 | 2018-05-09 | ドルビー ラボラトリーズ ライセンシング コーポレイション | Signal reconstruction for high dynamic range signals |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1300781A (en) * | 1969-03-07 | 1972-12-20 | Philips Electronic Associated | Circuit arrangement for colour point adjustment |
DE3368167D1 (en) * | 1982-01-19 | 1987-01-15 | Cavendish Dwight Holdings Ltd | Light projection apparatus |
DE3435538A1 (en) * | 1984-09-27 | 1986-04-03 | Robert 6000 Frankfurt Hanus | Method for reproducing original documents |
US4684996A (en) * | 1986-08-25 | 1987-08-04 | Eastman Kodak Company | Video projector with optical feedback |
JPS63278470A (en) * | 1987-05-09 | 1988-11-16 | Sharp Corp | Color conversion method |
US4989079A (en) * | 1987-10-23 | 1991-01-29 | Ricoh Company, Ltd. | Color correction device and method having a hue area judgement unit |
JP2565976B2 (en) * | 1988-04-04 | 1996-12-18 | 三菱電機株式会社 | Projection television |
JPH07119128B2 (en) * | 1989-05-08 | 1995-12-20 | 三菱電機株式会社 | Color signal correction circuit |
-
1993
- 1993-03-04 DE DE4306797A patent/DE4306797C1/en not_active Expired - Fee Related
- 1993-12-30 DK DK93121128.8T patent/DK0614319T3/en active
- 1993-12-30 ES ES93121128T patent/ES2101210T3/en not_active Expired - Lifetime
- 1993-12-30 AT AT93121128T patent/ATE151938T1/en not_active IP Right Cessation
- 1993-12-30 DE DE59306192T patent/DE59306192D1/en not_active Expired - Lifetime
- 1993-12-30 EP EP93121128A patent/EP0614319B1/en not_active Expired - Lifetime
-
1994
- 1994-02-09 ZA ZA94898A patent/ZA94898B/en unknown
- 1994-03-03 UA UA94005109A patent/UA26453C2/en unknown
- 1994-03-04 KR KR1019940004234A patent/KR0140825B1/en not_active IP Right Cessation
-
1997
- 1997-05-09 GR GR970401024T patent/GR3023371T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
ATE151938T1 (en) | 1997-05-15 |
DE59306192D1 (en) | 1997-05-22 |
UA26453C2 (en) | 1999-08-30 |
GR3023371T3 (en) | 1997-08-29 |
EP0614319B1 (en) | 1997-04-16 |
EP0614319A3 (en) | 1996-01-31 |
DK0614319T3 (en) | 1997-08-25 |
ES2101210T3 (en) | 1997-07-01 |
KR940023225A (en) | 1994-10-22 |
KR0140825B1 (en) | 1998-06-15 |
DE4306797C1 (en) | 1994-05-05 |
EP0614319A2 (en) | 1994-09-07 |
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