Lichtquelle und optische Kohärenztomografievorrichtung damit

Details

Veröffentlichungs-Nr.

EP2713138

Aktenzeichen

EP13185106

Anmeldetag

19. September 2013

Veröffentlichung

15. Juli 2015

Erteilung

15. Juli 2015

Rechtsraum

EP

IPC

H01L27/15H01L33/00H05B37/02G01B9/02

Abstract

A light source includes a control unit (104) that controls currents injected into at least one light emitting region (110) and a light emission spectrum conversion region (102). The at least one light emitting region includes a first light emitting region (111) and a second light emitting region (112) different from the first light emitting region, light that is emitted from the first light emitting region and passes through the light emission spectrum conversion region is combined with the light that is emitted from the first or second light emitting region and does not pass through the light emission spectrum conversion region. The control unit controls the currents injected into the light emission spectrum conversion region and the first light emitting region so that the current density of the light emission spectrum conversion region is smaller than the current density of the first light emitting region.

Anmelder

Firma

Canon Kabushiki Kaisha

Land

🇯🇵 Japan

Fachgebiete