公开(公告)号：US10247368B2

公开(公告)日：2019-04-02

申请号：US15622501

申请日：2017-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Soyeon Park ,  Sangok Yeo

IPC: F21K9/64 ,  F21S41/32 ,  F21S41/14 ,  F21S41/20 ,  F21S45/47 ,  F21S41/16 ,  F21Y115/30 ,  F21S41/365

Abstract: A lighting device for a vehicle includes a light source device; a main lens; a reflective fluorescent body configured to reflect and convert wavelengths of incident beams; and a prism arranged between the main lens and the reflective fluorescent body. The prism is configured to: reflect beams emitted from the light source device to be incident on the reflective fluorescent body; and transmit, through the prism and to the main lens, beams reflected from the reflective fluorescent body. The prism includes: a first surface facing the reflective fluorescent body; a second surface through which beams are incident; and a third surface forming an acute angle with the first surface. The prism is configured such that the beams incident through the second surface of the prism form angles of incidence, with respect to the third surface of the prism, that are greater than a critical angle of the prism.

公开(公告)号：US10267473B2

公开(公告)日：2019-04-23

申请号：US15622818

申请日：2017-06-14

Applicant: LG ELECTRONICS INC.

Inventor： Soyeon Park

IPC: F21S41/16 ,  F21S41/141 ,  F21S41/20 ,  F21S41/25 ,  F21S41/255 ,  F21S41/32 ,  F21S45/47

Abstract: A lighting device for a vehicle includes a lens; a prism that is disposed on a rear side of the lens and that is configured to totally reflect an incident light and to then emit the light; a light source device configured to emit light toward the prism; and a reflective fluorescent body disposed on the rear side of the lens and configured to convert a wavelength of light emitted by the prism and to then reflect the wavelength-converted light to the lens. The prism includes an emitting surface that is spaced apart from an optical axis of the lens. A distance between the reflective fluorescent body and a rear surface of the lens is greater than a distance between the emitting surface of the prism and the rear surface of the lens.