Title:
IMAGE PROJECTION SYSTEM
Document Type and Number:
Japanese Patent JP2020134830
Kind Code:
A
Abstract:
To provide an image projection system comprising a transparent screen and an image projection unit arranged on the side of one surface of the transparent screen that can prevent unnecessary image formation and the like that occur when the light that has been transmitted through the transparent screen reaches an object other than the transparent screen on the rear side after image light from the image projection unit is formed on the transparent screen.SOLUTION: In an image projection system comprising a transparent screen 11, a transparent viewing angle control film 12, and an image projection unit 13 arranged on the side of one surface of the transparent screen, the transparent screen includes a light scattering layer having a binder and a light reflective material, the light reflective material contains magnetic particles, the magnetic particles are oriented in the binder, and the range of the projection angle of image light from the image projection unit is set within the range of the viewing angle control angle of the transparent viewing angle control film, so that the transmitted light is scattered by the transparent viewing angle control film.SELECTED DRAWING: Figure 1
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Inventors:
MATSUO AKIRA
UCHIDA TAKAKO
NISHIMURA RYO
UCHIDA TAKAKO
NISHIMURA RYO
Application Number:
JP2019030819A
Publication Date:
August 31, 2020
Filing Date:
February 22, 2019
Export Citation:
Assignee:
ENEOS CORP
International Classes:
G03B21/60; E04H3/22; G02B5/00; G02B5/02; G03B21/14; G03B21/62
Attorney, Agent or Firm:
Hiroyuki Nagai
Yukitaka Nakamura
Satoru Asakura
Yukitaka Nakamura
Satoru Asakura