公开(公告)号：US20210270443A1

公开(公告)日：2021-09-02

申请号：US17091841

申请日：2020-11-06

Applicant: SHERPA SPACE INC.

Inventor： Choa Mun YUN ,  Sageun KANG ,  Wonjoon CHOI

IPC: F21V9/30

Abstract: A wavelength conversion film and a lighting device using the same are provided. The lighting device includes: a lighting unit in which a first light source in a first wavelength band and a second light source in a second wavelength band are arranged; and a wavelength conversion film in which a wavelength conversion region is arranged at a position opposite to the first light source, and a transmission region is arranged at a position opposite to the second light source. The wavelength conversion film includes; a wavelength conversion region configured to be arranged at a position opposite to a first light source in a first wavelength band of a lighting unit; and a transmission region configured to be arranged at a position opposite to a second light source in a second wavelength band of the lighting unit.

公开(公告)号：US20230111037A1

公开(公告)日：2023-04-13

申请号：US17512024

申请日：2021-10-27

Applicant: SHERPA SPACE INC.

Inventor： Wonjoon CHOI ,  Jonghwan KIM ,  Sageun KANG ,  Choa Mun YUN

IPC: F21S4/28 ,  F21V19/00 ,  F21K9/64

Abstract: A lighting device is provided. The lighting device includes a body on which a substrate on which a plurality of light sources are disposed, is mounted on a front surface of the body and configured to extend in a length direction, a film cartridge including a film divided into a plurality of radiation areas having different light conversion characteristics, and a pair of roll bars configured to wind both ends of the film, a driving unit coupled to one side surface of the body and configured to apply driving force to one end of each of the roll bars to change the radiation areas of the film, and a side cover coupled to a remaining side surface of the body to support a remaining end of each of the roll bars.