BE442905A - - Google Patents

Info

Publication number: BE442905A
Authority: BE; Belgium

Application number

Priority date (The priority date 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 date listed.)

1940-09-30

Publication of BE442905A publication Critical patent/BE442905A/xx

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)
Engineering & Computer Science (AREA)
Multimedia (AREA)
Signal Processing (AREA)
General Physics & Mathematics (AREA)
Optics & Photonics (AREA)
Transforming Electric Information Into Light Information (AREA)

BE442905D 1940-09-30 BE442905A (en0)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL605122X		1940-09-30

Publications (1)

Publication Number	Publication Date
BE442905A true BE442905A (en0)

Family

ID=19787906

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE442905D BE442905A (en0)	1940-09-30

Country Status (4)

Country	Link
US (1)	US2476124A (en0)
BE (1)	BE442905A (en0)
GB (1)	GB605122A (en0)
NL (1)	NL62423C (en0)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
- BE BE442905D patent/BE442905A/xx unknown
- NL NL62423D patent/NL62423C/xx active
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 (en0)
GB605122A (en)	1948-07-16

Publication	Publication Date	Title
BE440256A (en0)	1941-01-28
FR851551A (en0)	1940-01-11
BE438794A (en0)	1940-07-31
BE439851A (en0)
BE439921A (en0)
NL62423C (en0)
NL58640C (en0)	1946-07-15
NL56415C (en0)	1944-06-15
NL52883C (en0)
BE468936A (en0)
BE468236A (en0)
BE464441A (en0)	1946-05-31
BE440591A (en0)	1941-03-31
BE440307A (en0)
BE440295A (en0)
BE440291A (en0)
BE440289A (en0)
BE440284A (en0)
BE440248A (en0)
BE440246A (en0)
BE440192A (en0)
BE440185A (en0)
BE440179A (en0)
BE440126A (en0)
BE440123A (en0)