BE868698A - Dispositif d'exposition a la lumiere comprenant interieurement des zones d'absorption et de diffusion lumineuses - Google Patents

Dispositif d'exposition a la lumiere comprenant interieurement des zones d'absorption et de diffusion lumineuses

Info

Publication number: BE868698A
Authority: BE; Belgium
Prior art keywords: device including; exposure device; including internal; diffusion zones; light absorption
Prior art date: 1977-07-05

Application number

BE2057111A

Other languages

English (en)

Inventor

R E Levin

G J English

Original Assignee

Gte Sylvania Inc

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.)

1977-07-05

Filing date

1978-07-04

Publication date

1978-11-03

1978-07-04 Application filed by Gte Sylvania Inc filed Critical Gte Sylvania Inc

1978-11-03 Publication of BE868698A publication Critical patent/BE868698A/fr

Links

238000009792 diffusion process Methods 0.000 title 1
230000031700 light absorption Effects 0.000 title 1

Classifications

- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/54—Lamp housings; Illuminating means

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Light Sources And Details Of Projection-Printing Devices (AREA)
Projection-Type Copiers In General (AREA)
Optical Elements Other Than Lenses (AREA)

BE2057111A 1977-07-05 1978-07-04 Dispositif d'exposition a la lumiere comprenant interieurement des zones d'absorption et de diffusion lumineuses BE868698A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/812,833 US4128333A (en)	1977-07-05	1977-07-05	Light exposure device including light diffusing and absorbing regions therein

Publications (1)

Publication Number	Publication Date
BE868698A true BE868698A (fr)	1978-11-03

Family

ID=25210751

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE2057111A BE868698A (fr)	1977-07-05	1978-07-04	Dispositif d'exposition a la lumiere comprenant interieurement des zones d'absorption et de diffusion lumineuses

Country Status (9)

Country	Link
US (1)	US4128333A (fr)
JP (1)	JPS5445131A (fr)
BE (1)	BE868698A (fr)
CA (1)	CA1111814A (fr)
DE (1)	DE2828746A1 (fr)
FR (1)	FR2396988A1 (fr)
GB (1)	GB1596886A (fr)
IT (1)	IT1095947B (fr)
NL (1)	NL7805853A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4308573A (en) *	1978-06-12	1981-12-29	Esquire, Inc.	Lamp fixture including diffused low angle reflective surfaces
US4515468A (en) *	1983-03-25	1985-05-07	Phase One Products, Corp.	Combined photographic enlarger and print developing tray
USD563022S1 (en)	2007-01-19	2008-02-26	Genlyte Thomas Group, Llc	Luminaire
USD563590S1 (en)	2007-01-19	2008-03-04	Genlyte Thomas Group, Llc	Luminaire
USD558381S1 (en) *	2007-02-28	2007-12-25	Genlyte Thomas Group, Llc	Luminaire
USD589638S1 (en)	2008-01-21	2009-03-31	Genlyte Thomas Group Llc	Linear wall or ceiling mounted luminaire with rotatable optics
USD605323S1 (en)	2008-05-06	2009-12-01	Koninklijke Philips Electronics N.V.	Track fixture luminaire
USD614325S1 (en)	2008-05-06	2010-04-20	Koninklijke Philips Electronics N.V.	Track fixture luminaire
USD605324S1 (en)	2008-05-06	2009-12-01	Koninklijke Philips Electronics N.V.	Track fixture luminaire
USD604881S1 (en)	2008-05-06	2009-11-24	Genlyte Thomas Group, Llc	Track fixture luminaire
USD604882S1 (en)	2008-05-06	2009-11-24	Genlyte Thomas Group, Llc	Track fixture luminaire
USD619288S1 (en)	2008-05-06	2010-07-06	Koninklijke Philips Electronics N.V.	Track fixture luminaire
US7950833B1 (en)	2008-06-17	2011-05-31	Genlyte Thomas Group Llc	Splay frame luminaire

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS4318545Y1 (fr) *	1964-11-21	1968-07-31
US3697177A (en) *	1970-06-26	1972-10-10	Addressograph Multigraph	Illuminating system for a copying machine

1977
- 1977-07-05 US US05/812,833 patent/US4128333A/en not_active Expired - Lifetime
1978
- 1978-05-25 GB GB22820/78A patent/GB1596886A/en not_active Expired
- 1978-05-30 NL NL7805853A patent/NL7805853A/xx not_active Application Discontinuation
- 1978-06-27 IT IT24990/78A patent/IT1095947B/it active
- 1978-06-29 JP JP7920578A patent/JPS5445131A/ja active Pending
- 1978-06-30 DE DE19782828746 patent/DE2828746A1/de not_active Withdrawn
- 1978-06-30 CA CA306,662A patent/CA1111814A/fr not_active Expired
- 1978-07-04 BE BE2057111A patent/BE868698A/fr not_active IP Right Cessation
- 1978-07-05 FR FR7820018A patent/FR2396988A1/fr active Granted

Also Published As

Publication number	Publication date
IT1095947B (it)	1985-08-17
IT7824990A0 (it)	1978-06-27
DE2828746A1 (de)	1979-01-25
GB1596886A (en)	1981-09-03
JPS5445131A (en)	1979-04-10
US4128333A (en)	1978-12-05
FR2396988A1 (fr)	1979-02-02
NL7805853A (nl)	1979-01-09
CA1111814A (fr)	1981-11-03
FR2396988B3 (fr)	1981-03-06

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Legal Events

Date

Code

Title

Description

1985-01-31

RE

Patent lapsed

Owner name: GTE SYLVANIA INC.

Effective date: 19840704