Scanning projector screen, and scanning projector system

• US 10,216,079 B2
• Filed: 09/09/2016
• Issued: 02/26/2019
• Est. Priority Date: 09/25/2015
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Sugiyama, Tetsuya, Nakamura, Go
• Primary Examiner(s): Cherry, Euncha P
• Application Number:
  US15/261,121
• Publication Number:
  US 20170090275A1
• Time in Patent Office: 900 Days
• Field of Search: 3592141
• CPC Class Codes: G02B 2027/0118 comprising devices for improving the contrast of the display / brillance control visibility
• CPC Class Codes: G02B 2027/013 comprising a combiner of particular shape, e.g. curvature
• CPC Class Codes: G02B 26/0833 the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD G02B26/0825 takes precedence; micromechanical devices in general B81B
• CPC Class Codes: G02B 26/105 with one or more pivoting mirrors or galvano-mirrors G02B26/101 takes precedence
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G03B 21/60 characterised by the nature of the surface
• CPC Class Codes: H04N 9/3129 scanning a light beam on the display screen scanning a light beam on a screen in displays other than projection devices G09G3/02; scanning systems in general G02B26/10; projectors using laser light sources in general H04N9/3161

Abstract

Provided is a scanning projector screen which can suppress inhomogeneity of a beam diameter. The scanning projector screen has a screen surface that is curved in at least one direction.

Claims

1. A scanning projector system comprising:

a scanning projector; and

a screen,

wherein, the scanning projector includes a high-speed two-dimensional scanning element which performs scanning of a convergent light in a horizontal direction and a vertical direction,

the screen is formed in a shape formed by cutting out a part of a sphere around a rotation axis of the scanning element, and the screen is positioned such that the rotation axis of the scanning element is at a center of the part of the sphere, and

the distance between the rotation axis and respective locations in the direction of the scanning is determined such that the convergent light is focused on the screen.