POLARIZING PRESERVING FRONT PROJECTION SCREEN WITH PROTRUSIONS

A projection screen for diffusing illumination light into a range of viewing angles is formed by depositing a coating on a substrate. Within the coating are particles having an average particle height. Protrusions at least two microns higher than the average particle height may be substantially unif...

Full description

Saved in:
Bibliographic Details
Main Author WU CHINGIN
Format Patent
LanguageChinese
English
Published 31.12.2021
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:A projection screen for diffusing illumination light into a range of viewing angles is formed by depositing a coating on a substrate. Within the coating are particles having an average particle height. Protrusions at least two microns higher than the average particle height may be substantially uniformly distributed over the screen. In some embodiments, each protrusion may be no closer than 80 microns to another protrusion. 用于使照明光漫射到一视角范围中的投影屏幕是通过将涂层沉积在基板上来形成的。具有平均颗粒高度的颗粒位于所述涂层内。比所述平均颗粒高度高至少两微米的凸起可以基本上均匀地分布在所述屏幕之上。在一些实施例中，每个凸起与另一个凸起相距不小于80微米。
Bibliography:Application Number: CN202080039066