Patent · US Active

Light source apparatus

US8616747B2 · kind B2 · utility

2Cited by
1References
8Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 5, 2012
Grant dateDec 31, 2013
Priority date—
Expiry dateDec 5, 2032

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF21V9/20
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A light source apparatus includes: a white LED that emits light including a first wavelength band and a second wavelength band; a violet LED that emits light in a third wavelength band, and a rotating disk including a filter that transmits light in the first wavelength band. The light source apparatus also includes a rotating disk drive section that changes a position of the rotating disk so that if a normal observation mode is selected, the filter is retracted from an optical path of the light emitted from the white LED, if a narrow band observation mode is selected, a filter is continuously inserted in the optical path of the light emitted from the white LED, and if a twin mode is selected, the filter is intermittently inserted in the optical path of the light emitted from the white LED.

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