SIDE-ILLUMINATED EXCITATION OPTICS APPARATUS AND SYSTEMS

摘要

One or more excitation energy sources emit light in an excitation spectrum and direct the emitted light as an excitation beam to the emitting surface of a wavelength conversion element directly or via reflection. Distinct areas of the emitting surface are coated with one or more distinct fluorescent phosphors. The phosphor-coated areas receive the excitation beam and generate a sequence of fluoresced light beams at a light output, each fluoresced beam of a narrow spectrum determined by the type of phosphor and the excitation spectrum. The fluoresced beams travel parallel to an emitting axis at a non-zero angle to axes associated with the excitation beams.

主权项

1. An illumination apparatus, comprising:
an optical wavelength conversion element, at least one portion of an emitting surface of the wavelength conversion element coated with a fluorescent phosphor to receive at least one excitation beam of photons of an excitation spectrum and to generate at least one fluoresced beam of photons of a fluoresced spectrum with a predetermined periodicity during at least one predetermined period of time; a condensing and collimation optical element group optically coupled to the optical wavelength conversion element to direct the fluoresced beam parallel to an emitting axis perpendicular to the emitting surface; and at least one electromagnetic excitation energy source optically coupled to the optical wavelength conversion element to emit light of the excitation spectrum and to direct the emitted light as the excitation beam to the emitting surface of the wavelength conversion element directly or via reflection parallel to an excitation axis at a non-zero angle to the emitting axis.