BE442905A - - Google Patents
Info
- Publication number
- BE442905A BE442905A BE442905DA BE442905A BE 442905 A BE442905 A BE 442905A BE 442905D A BE442905D A BE 442905DA BE 442905 A BE442905 A BE 442905A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
- G02B17/0884—Catadioptric systems having a pupil corrector
- G02B17/0888—Catadioptric systems having a pupil corrector the corrector having at least one aspheric surface, e.g. Schmidt plates
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
- H01J29/894—Arrangements combined with the vessel for the purpose of image projection on a 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
- H04N5/00—Details of television systems
- H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
- H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
- H04N5/7425—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being a dielectric deformable layer controlled by an electron beam, e.g. eidophor projector
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Transforming Electric Information Into Light Information (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL605122X | 1940-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE442905A true BE442905A (fr) |
Family
ID=19787906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE442905D BE442905A (fr) | 1940-09-30 |
Country Status (4)
Country | Link |
---|---|
US (1) | US2476124A (fr) |
BE (1) | BE442905A (fr) |
GB (1) | GB605122A (fr) |
NL (1) | NL62423C (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2647255A (en) * | 1949-09-21 | 1953-07-28 | Hartford Nat Bank & Trust Co | Television receiver |
NL166970B (nl) * | 1951-02-27 | Mitsubishi Gas Chemical Co | Werkwijze voor het verlenen van papierachtige eigen- schappen aan foelies uit kunstharsen. | |
US2628533A (en) * | 1951-10-17 | 1953-02-17 | Robert A Oetjen | Image forming optical reflecting and converging mirror device |
US2749801A (en) * | 1951-11-09 | 1956-06-12 | American Optical Corp | Reflective optical projection systems |
US2737850A (en) * | 1952-12-11 | 1956-03-13 | Gen Precision Lab Inc | Wide aperture divergent optical system using spherical mirrors |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE624129C (de) * | 1936-01-13 | Walther Thorner Dr | Sternglobus | |
US1960011A (en) * | 1931-02-26 | 1934-05-22 | Bell Telephone Labor Inc | Apparatus for making stereoscopic parallax panoramagrams |
US1967892A (en) * | 1933-02-01 | 1934-07-24 | Gen Electric | Stroboscope |
US2128632A (en) * | 1934-10-20 | 1938-08-30 | Jules A Perrault | Electronic device |
US2273801A (en) * | 1938-12-30 | 1942-02-17 | Rca Corp | Television receiver |
GB548750A (en) * | 1942-01-12 | 1942-10-22 | Philips Nv | Improvements in or relating to projectors for the light image of a cathode-ray tube |
-
0
- NL NL62423D patent/NL62423C/xx active
- BE BE442905D patent/BE442905A/xx unknown
-
1945
- 1945-12-14 GB GB33932/45A patent/GB605122A/en not_active Expired
-
1946
- 1946-01-15 US US641389A patent/US2476124A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US2476124A (en) | 1949-07-12 |
NL62423C (fr) | |
GB605122A (en) | 1948-07-16 |