logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10509225 B1

PDFFull Text
Date of Patent:
Dec. 17, 2019

Filed:

Feb. 03, 2016

Transmission type screen and head-up display device using same

Applicant:

Dai Nippon Printing Co., Ltd., Tokyo, JP;

Inventors:

Tsuyoshi Chiba, Tokyo, JP;

Shogo Kubota, Tokyo, JP;

Assignee:

Dai Nippon Printing Co., Ltd., Shinjuku-Ku, JP;

Attorney:

Burr & Brown, PLLC

Primary Examiner:

Frank G Font

Int. Cl.
CPC ...
G02B 27/01 (2006.01); G03B 21/20 (2006.01); B60K 35/00 (2006.01); G02B 3/00 (2006.01); G02B 5/02 (2006.01); G02B 26/10 (2006.01); G02B 27/48 (2006.01); G03B 21/00 (2006.01); G02B 27/14 (2006.01); G03B 21/62 (2014.01); G09F 9/00 (2006.01); H04N 5/74 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0101 (2013.01); B60K 35/00 (2013.01); G02B 3/0056 (2013.01); G02B 5/0221 (2013.01); G02B 5/0278 (2013.01); G02B 27/48 (2013.01); G03B 21/00 (2013.01); G03B 21/2013 (2013.01); G03B 21/2033 (2013.01); G03B 21/62 (2013.01); G09F 9/00 (2013.01); H04N 5/74 (2013.01); B60K 2370/155 (2019.05); B60K 2370/333 (2019.05); B60K 2370/334 (2019.05); G02B 26/105 (2013.01); G02B 27/14 (2013.01); G02B 2027/0118 (2013.01); G03B 21/006 (2013.01); G03B 21/008 (2013.01);
Abstract

In order to provide a transmission type screen having a flat scattered intensity within a predetermined scattering angle, a transmission type screen () according to the present invention comprising a first surface (), and a second surface () opposed to the first surface (), wherein: the first surface () is equipped with a microlens array () including a plurality of microlenses; the second surface () is equipped with a light diffusion surface (); and a diffusion angle ratio of a diffusion angle of the light diffusion surface () relative to a diffusion angle of the microlens array () is not less than 0.2 and not more than 0.4.

Find Patent Forward Citations

Loading…