DK200101535A - Rear light projection screen is illuminated from behind and on front side has light diffusion devices for receiving beams from picture source and also for receiving beams in connection with showing picture - Google Patents

Rear light projection screen is illuminated from behind and on front side has light diffusion devices for receiving beams from picture source and also for receiving beams in connection with showing picture Download PDF

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Publication number
DK200101535A
DK200101535A DK200101535A DKPA200101535A DK200101535A DK 200101535 A DK200101535 A DK 200101535A DK 200101535 A DK200101535 A DK 200101535A DK PA200101535 A DKPA200101535 A DK PA200101535A DK 200101535 A DK200101535 A DK 200101535A
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DK
Denmark
Prior art keywords
receiving beams
picture
illuminated
behind
projection screen
Prior art date
Application number
DK200101535A
Other languages
Danish (da)
Inventor
Clausen Johannes
Original Assignee
Cps Clausen Professional Scree
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Publication date
Application filed by Cps Clausen Professional Scree filed Critical Cps Clausen Professional Scree
Priority to DK200101535A priority Critical patent/DK176592B1/en
Publication of DK200101535A publication Critical patent/DK200101535A/en
Application granted granted Critical
Publication of DK176592B1 publication Critical patent/DK176592B1/en

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  • Overhead Projectors And Projection Screens (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The rear light projection screen is illuminated from behind and on its front side has light diffusion devices for receiving beams from a picture source and also for receiving beams in connection with showing the picture with principally uniform light intensity over a wide visual angle. The light diffusion devices consist of ytterbium oxide, yttrium oxide and silicon dioxide.

Description

PATENTKRAV 1. Baglysprojektionsskærm med et lysspredende medium, gennem hvilket lysstrålerne afbøjes fra en billedkilde til fremvisning af billedet med en i hovedsagen ensartet lysstyrke over en bred synsvinkel, både horisontalt og vertikalt, hvilke lysspredende partikler er kendetegnet ved, at partiklerne består af ytterbium oxide, ytterium oxide samt silicium oxide. 2. Baglysprojektionsskærm iflg. krav lkendetegnet ved, at skærmen er indfarvet. 3. Baglysprojektionsskærm iflg. krav lkendetegnet ved, at forsideoverfalden kan være blank, mat, semimat.PATENT REQUIREMENT 1. Rear light projection screen with a light scattering medium through which the light rays are deflected from an image source to display the image with a substantially uniform brightness over a wide angle of view, both horizontally and vertically, the light scattering particles being characterized by the particle oxide outer oxide as well as silicon oxide. 2. Taillight projection screen according to. requirements characterized by the color of the screen. 3. Taillight projection screen according to. claims characterized by the fact that the cover can be blank, matte, semi-matte.

DK200101535A 2001-10-19 2001-10-19 A rear projection screen DK176592B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK200101535A DK176592B1 (en) 2001-10-19 2001-10-19 A rear projection screen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK200101535 2001-10-19
DK200101535A DK176592B1 (en) 2001-10-19 2001-10-19 A rear projection screen

Publications (2)

Publication Number Publication Date
DK200101535A true DK200101535A (en) 2003-04-20
DK176592B1 DK176592B1 (en) 2008-10-13

Family

ID=8160777

Family Applications (1)

Application Number Title Priority Date Filing Date
DK200101535A DK176592B1 (en) 2001-10-19 2001-10-19 A rear projection screen

Country Status (1)

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DK (1) DK176592B1 (en)

Also Published As

Publication number Publication date
DK176592B1 (en) 2008-10-13

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