Lighting apparatus

摘要

A wavelength converting unit includes: an incident portion configured to be connected to an excited-light emitting end of a excited-light source, and on which excited light emitted from the excited-light source is made incident; a wavelength converting member configured to convert the excited light into wavelength-converted light of a desired wavelength; a light transmitting member configured to transmit the excited light and the wavelength-converted light; a reflector configured to reflect at least part of the wavelength-converted light; and an emitting portion configured to emit at least part of the at least part of the wavelength-converted light reflected by the reflector to outside. At least part of the light transmitting member is continuously formed to extend from the incident portion to the emitting portion, and part of an external surface of the light transmitting member has the reflector.

主权项

1. A lighting apparatus comprising:
an excited-light source including an excited-light emitting end; a wavelength converting unit, and an optical fiber for transmitting excited light from the excited-light source to the wavelength converting unit, the optical fiber having a proximal end optically connected with the excited-light source and a distal end substantially in contact with the wavelength-converting unit; wherein the wavelength converting unit includes: an incident portion configured to be connected to the excited-light emitting end, and on which excited light emitted from the excited-light source is made incident; a wavelength converting member configured to convert the excited light made incident on the incident portion into wavelength-converted light of a desired wavelength; a light transmitting member configured to transmit the excited light and the wavelength-converted light, the light transmitting member having a body defined by an exterior surface; a reflector layer configured to reflect at least part of the wavelength-converted light from the wavelength converting member; and an emitting portion configured to emit at least part of the at least part of the wavelength-converted light reflected by the reflector layer to outside without reentering the wavelength converting member, and wherein the reflector layer is provided on the exterior surface of the body of the light transmitting member and the wavelength converting member and the light transmitting member completely fill a cavity defined by the reflector.