Patent · US Active

Optical element and car lamp

US9915404B1 · kind B1 · utility

2Cited by

0References

15Claims

0Family size

Assignee

BROALUX International Limited · VG

Inventors

Jui-Hung Sun · New Taipei, TW
Chun-Te Wu · Taipei, TW

Key dates

Filing date	Sep 14, 2016
Grant date	Mar 13, 2018
Priority date	—
Expiry date	Sep 14, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21W2102/135
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An optical element includes a light entrance surface, a light exit surface, and a reflective surface. The light entrance surface has a first entrance sub-surface, a second entrance sub-surface, and a third entrance sub-surface which form a cavity for containing a light source. The light exit surface is opposite to the light entrance surface and has a first exit sub-surface, a second exit sub-surface, and a third exit sub-surface. The reflective surface connects the light entrance surface with the light exit surface. The reflective surface has a first reflective sub-surface connecting the first entrance sub-surface with the first exit sub-surface and a second reflective sub-surface connecting the third entrance sub-surface with the third exit sub-surface. The first reflective sub-surface has a step laterally extending from a side adjacent to the light entrance surface to another side adjacent to the light exit surface.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.