公开(公告)号：US11428378B1

公开(公告)日：2022-08-30

申请号：US17227397

申请日：2021-04-12

Applicant: Young Optics Inc.

Inventor： Chen-An Chiang ,  S-Wei Chen

IPC: F21S41/40 ,  F21S41/25 ,  F21S41/153 ,  F21S41/143 ,  F21Y115/10 ,  F21Y105/10

Abstract: A vehicle lamp device including a matrix image light source, a projection lens, and a vehicle lampshade is provided. The projection lens has an optical axis and is disposed in a downstream of an optical path of the matrix image light source. The vehicle lampshade is disposed in a downstream of an optical path of the projection lens. The projection lens includes two to three optical lenses, and a projection aspect ratio of the projection lens is between 2.5:1 and 6:1. A distance between optical centers of outermost lens surfaces at both ends of the projection lens is between 54 millimeters and 76 millimeters. In addition, a projection lens for a vehicle lamp is also proposed.

公开(公告)号：US11226077B2

公开(公告)日：2022-01-18

申请号：US17142293

申请日：2021-01-06

Applicant: Young Optics Inc.

Inventor： S-Wei Chen ,  Yung-Ming Chuang

IPC: F21S41/25 ,  F21S41/40 ,  F21S41/20 ,  F21S41/153

Abstract: A projection device and a headlight for vehicle are provided. The projection device includes a light source, a light valve and a projection lens. The light source is used to emit a light beam. The light valve is located at the downstream of an optical path of the light source. The projection lens is located at the downstream of an optical path of the light valve and has an optical axis. The light valve is located on the optical axis of the projection lens and is tilted with respect to the projection lens to form an acute angle with the optical axis. The projection lens is used for projecting the light beam on a first projection surface and a second projection surface.