NL7304443A - - Google Patents

Info

Publication number: NL7304443A
Authority: NL; Netherlands

Application number

NL7304443A

Other versions

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.)

1972-03-31

Filing date

1973-03-30

Publication date

1973-10-02

1973-03-30 Application filed filed Critical

1973-10-02 Publication of NL7304443A publication Critical patent/NL7304443A/xx

1985-07-16 Publication of NL177948B publication Critical patent/NL177948B/xx

1985-12-16 Application granted granted Critical

1985-12-16 Publication of NL177948C publication Critical patent/NL177948C/xx

Links

Classifications

- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/02—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/18—Edge-illuminated signs
- G09F2013/1804—Achieving homogeneous illumination
- G09F2013/1831—Achieving homogeneous illumination using more than one light source

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Optics & Photonics (AREA)
Computer Hardware Design (AREA)
Theoretical Computer Science (AREA)
Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Illuminated Signs And Luminous Advertising (AREA)
Lasers (AREA)

NLAANVRAGE7304443,A 1972-03-31 1973-03-30 Inrichting voor het weergeven van een punt op een scherm. NL177948C (nl)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7211578A FR2178444A5 (de)	1972-03-31	1972-03-31

Publications (3)

Publication Number	Publication Date
NL7304443A true NL7304443A (de)	1973-10-02
NL177948B NL177948B (nl)	1985-07-16
NL177948C NL177948C (nl)	1985-12-16

Family

ID=9096209

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NLAANVRAGE7304443,A NL177948C (nl)	1972-03-31	1973-03-30	Inrichting voor het weergeven van een punt op een scherm.

Country Status (6)

Country	Link
US (1)	US3838917A (de)
BE (1)	BE795975A (de)
DE (1)	DE2311330C3 (de)
FR (1)	FR2178444A5 (de)
GB (1)	GB1394541A (de)
NL (1)	NL177948C (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19802165A1 (de) *	1998-01-21	1999-07-22	Man Systemelektronik Gmbh	Anordnung zum gleichmäßigen Be- bzw. Ausleuchten einer Fläche zum Anzeigen von Informationen
DE19812090C2 (de)	1998-03-19	2000-03-09	Daimler Chrysler Ag	Mehrzylindrische Kolbenbrennkraftmaschine mit mindestens zwei Zylinderbänken
FR2856159B1 (fr) *	2003-06-16	2005-09-09	Laurent Lipiner	Systeme et procede pour visualiser un contenu image sur une surface transparente, et revetements de surface adaptes.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1302353A (en) *	1917-09-20	1919-04-29	Conrad Friedrich	Luminous hair-line.
US2584777A (en) *	1949-04-18	1952-02-05	George S Adolfson	Clearance indicating arm
US2898880A (en) *	1956-10-04	1959-08-11	Jr Perry B Newton	Single panel illuminated instrument dial

1972
- 1972-03-31 FR FR7211578A patent/FR2178444A5/fr not_active Expired
1973
- 1973-02-26 BE BE128114A patent/BE795975A/xx unknown
- 1973-03-05 GB GB1055273A patent/GB1394541A/en not_active Expired
- 1973-03-07 DE DE2311330A patent/DE2311330C3/de not_active Expired
- 1973-03-30 US US00346567A patent/US3838917A/en not_active Expired - Lifetime
- 1973-03-30 NL NLAANVRAGE7304443,A patent/NL177948C/xx not_active IP Right Cessation

Also Published As

Publication number	Publication date
DE2311330A1 (de)	1973-10-04
NL177948C (nl)	1985-12-16
BE795975A (fr)	1973-06-18
DE2311330B2 (de)	1975-05-07
FR2178444A5 (de)	1973-11-09
GB1394541A (en)	1975-05-21
US3838917A (en)	1974-10-01
DE2311330C3 (de)	1975-12-11
NL177948B (nl)	1985-07-16

Legal Events

Date	Code	Title
1980-04-25	BC	A request for examination has been filed
1985-01-01	A85	Still pending on 85-01-01
1991-11-18	V1	Lapsed because of non-payment of the annual fee

Publication	Publication Date	Title
JPS4961398A (de)	1974-06-14
JPS4963007A (de)	1974-06-19
FR2178444A5 (de)	1973-11-09
JPS5242825Y2 (de)	1977-09-29
JPS4926663U (de)	1974-03-07
JPS4926177A (de)	1974-03-08
JPS4990715A (de)	1974-08-29
JPS4924722U (de)	1974-03-02
JPS4923075U (de)	1974-02-27
JPS4917925U (de)	1974-02-15
JPS546620Y2 (de)	1979-03-28
JPS5121303Y2 (de)	1976-06-03
JPS5316081Y2 (de)	1978-04-27
JPS4986864U (de)	1974-07-27
JPS49104532U (de)	1974-09-07
JPS4992346U (de)	1974-08-09
CH582662A5 (de)	1976-12-15
CH588500A5 (de)	1977-06-15
BG21230A3 (de)	1976-03-20
CH1074373A4 (de)	1977-06-15
CH559390A5 (de)	1975-02-28
CH574197A5 (de)	1976-03-31
CH592065A5 (de)	1977-10-14
BG18012A1 (de)	1974-09-02
BG17849A1 (de)	1974-03-05