Invention Grant
- Patent Title: Transmission-type screen and image display device using the transmission-type screen
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Application No.: US15161686Application Date: 2016-05-23
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Publication No.: US09885948B2Publication Date: 2018-02-06
- Inventor: Masaru Segawa
- Applicant: JVC KENWOOD Corporation
- Applicant Address: JP Yokohama-shi
- Assignee: JVC KENWOOD Corporation
- Current Assignee: JVC KENWOOD Corporation
- Current Assignee Address: JP Yokohama-shi
- Agency: Brundidge & Stanger, P.C.
- Priority: JP2014-000236 20140106; JP2014-034235 20140225
- Main IPC: G03B21/60
- IPC: G03B21/60 ; G03B21/625 ; G03B21/62 ; H04N9/31 ; G02B3/00 ; G02B5/02 ; G02B27/01 ; G03B21/00 ; G03B21/16 ; G03B21/28

Abstract:
A transmission-type screen includes: a first lens array surface on which a plurality of first microlenses are arrayed; and a second lens array surface that is provided at a distance in a direction perpendicular to the first lens array surface and on which a plurality of second microlenses whose shape is different from the shape of the first microlenses are arrayed. A level line near a vertex is circular or elliptical in the first microlenses, and a level line near a vertex is elliptical with ellipticity different from the ellipticity of the level line of the first microlenses in the second microlenses.
Public/Granted literature
- US20160266283A1 TRANSMISSION-TYPE SCREEN AND IMAGE DISPLAY DEVICE USING THE TRANSMISSION-TYPE SCREEN Public/Granted day:2016-09-15
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