公开(公告)号：US11852307B1

公开(公告)日：2023-12-26

申请号：US18078060

申请日：2022-12-08

申请人： Young Optics Inc.

发明人： Ching-Lun Lin ,  Jyh-Horng Shyu

IPC分类号： G02B5/02 ,  F21S41/176 ,  F21S41/16 ,  F21S41/32 ,  F21S41/25

CPC分类号： F21S41/176 ,  F21S41/16 ,  F21S41/25 ,  F21S41/32

摘要： A headlight using an image light source is provided, which includes a laser light source and a wavelength converter. The laser light source includes multiple light-emitting units arranged in an array to provide an image beam. The wavelength converter is arranged downstream of an optical path of the laser light source. The wavelength converter is provided with a light dot matrix with the number of rows and columns greater than or equal to 40×40 to excite a part of the image beam into an excitation beam, and an unexcited part of the image beam is mixed with the excitation beam to generate a white beam.

公开(公告)号：US09939715B2

公开(公告)日：2018-04-10

申请号：US14980972

申请日：2015-12-28

申请人： Young Optics Inc.

发明人： Ching-Lun Lin ,  Ming-Chi Chen ,  Ya-Ling Hsu ,  Wen-Hao Hsu ,  Chao-Shun Chen ,  Wei-Hung Tsai

IPC分类号： G03B21/14 ,  G03B21/10 ,  G03B21/28 ,  G09F19/18 ,  G03B21/00

CPC分类号： G03B21/10 ,  G03B21/005 ,  G03B21/147 ,  G03B21/28 ,  G09F19/18

摘要： A projection device is disposable into a display platform of a display rack having a plurality of display platforms, for directly projecting an image frame onto a projection screen of the display platform. The image frame projected to the projection screen is not reflected by any reflective mirror arranged between the projection device and the projection screen. A length of the image frame in a first direction is equal to at least ten times a length of the image frame in a second direction. Since no reflective mirror is arranged between the projection device and the projection screen, the projection device is more easily applicable to display racks.