Abstract: An illumination device includes: a laser light source; a cylindrical body disposed such that light emitted from the laser light source enters the cylindrical body at a first end portion side of the cylindrical body and passes through the cylindrical body; a reflector disposed so as to reflect light passing through the cylindrical body; and a ring assembly comprising a ring-shaped inner circumferential surface configured to reflect and propagate light from the reflector. The reflector includes: a first reflecting surface configured to reflect a first portion of light emitted from the laser light source, and a second reflecting surface configured to reflect a second portion of light emitted from the laser light source. The ring assembly further includes a fluorescent surface adapted to emit fluorescence by light reflected and propagated at the inner circumferential surface.

Abstract: An illumination device includes: a laser light source; a cylindrical body disposed such that light emitted from the laser light source enters the cylindrical body at a first end portion side of the cylindrical body and passes through the cylindrical body; a reflector disposed so as to reflect light passing through the cylindrical body; and a ring assembly comprising a ring-shaped inner circumferential surface configured to reflect and propagate light from the reflector. The reflector includes: a first reflecting surface configured to reflect a first portion of light emitted from the laser light source, and a second reflecting surface configured to reflect a second portion of light emitted from the laser light source. The ring assembly further includes a fluorescent surface adapted to emit fluorescence by light reflected and propagated at the inner circumferential surface.

Abstract: A light emitting device with improved safety in which leaking laser beam from a slit is converted into a visible light. A light emitting device includes a laser light source part and optical member that defines a slit. The optical member is disposed with the slit oriented on an optical path of the laser beam, while disposing a wavelength converting member on an inner wall defining the slit to convert a wavelength of the laser beam into a long-wavelength side visible light.

Abstract: A light emitting device with improved safety in which leaking laser beam from a slit is converted into a visible light. A light emitting device includes a laser light source part and optical member that defines a slit. The optical member is disposed with the slit oriented on an optical path of the laser beam, while disposing a wavelength converting member on an inner wall defining the slit to convert a wavelength of the laser beam into a long-wavelength side visible light.