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.:
Date of Patent:
Feb. 14, 2017
Filed:
Sep. 15, 2014
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A projector includes a light source that emits a light beam, an illumination lens unit, a display device, a projection lens unit, a field lens, and a reflection member. The illumination lens unit shapes and focuses the light beam into an illumination light beam. The display device modulates the illumination light beam and forms an image. The projection lens unit projects the image on a screen. The field lens has a positive refractive power for focusing the illumination light beam on the display device, a first lens surface on which the illumination light beam is incident, and a second lens surface on which the image formed by the display device is incident. The reflection member changes an illumination light beam path into a direction of the field lens. The first lens surface reflects a portion of the illumination light beam into a path that avoids the projection lens unit.