Patent ID: 9612511
Date: 2017-04-04
CPC Classifications: G03B

Claim:
1. A solid state light source device comprising: an excitation light source for generating an excitation light; a wavelength conversion device disposed to receive the excitation light and having one or more wavelength conversion materials for converting at least some of the excitation light into a converted light, wherein the excitation light source and the wavelength conversion device are moveable relative to each other such that different locations of the wavelength conversion device is illuminated by the excitation light at different times, and wherein the wavelength conversion device outputs a first output light which is a broad band light including two or more primary color components and having constant intensity and spectrum as a function of time; a curved reflector having an aperture, wherein the excitation light from the excitation light source passes through the aperture to impinge on the wavelength conversion device, wherein the excitation light source and an area of the wavelength conversion device illuminated by the excitation light are located on opposite sides of the curved reflector; a collection optics having an input port and an output port, the collection optics being disposed on the same side of the curved reflector as the area of the wavelength conversion device illuminated by the excitation light, wherein either the curved reflector has a spherical shape and the area of the wavelength conversion device illuminated by the excitation light and the input port of the collection optics are located at two respective locations that are symmetrical to each other with respect to a spherical center of the spherical shape, or the curved reflector has an ellipsoidal shape and the area of the wavelength conversion device illuminated by the excitation light and the input port of the collection optics are located respectively at two focal points of the ellipsoid spherical shape, wherein the curved reflector reflects the first output light from the wavelength conversion device to the input port of the collection optics, and wherein the collection optics guides the first output light to exit the output port; a second light source generating a second color light; and a light combination device disposed to receive the first output light from the output port of the collection optics and for combining the first output light outputted by the wavelength conversion device, after reflection by the curved reflector and guided through the collection optics, and the second light generated by the second light into one beam of light, wherein the first output light is reflected by the curved reflector from the wavelength conversion device to the input port of the collection optics and then guided to the light combination device without passing through the aperture of the curved reflector.