Wavelength conversion filter module and illumination system

An illumination system, comprising:

• an excitation light source adapted to provide an excitation beam;
• and
• a wavelength conversion filter module disposed on a transmission path of the excitation beam and comprising:
• a carrier having a plurality of optical regions and adapted to move to allow the plurality of optical regions to receive the excitation beam in order, wherein at least one of the plurality of optical regions is a wavelength conversion filter region;
• and
• a wavelength conversion filter unit located in the wavelength conversion filter region and comprising a filter reflective device, a wavelength conversion device, and a first filter device disposed on the carrier in order, wherein the first filter device is suitable for allowing the excitation beam to pass through, the wavelength conversion device is suitable for converting the excitation beam into a conversion beam, the conversion beam comprises a specific color beam and a color beam other than the specific color beam, the filter reflective device is suitable for reflecting the specific color beam and absorbing the color beam other than the specific color beam, and the first filter device is suitable for allowing the specific color beam to pass through and reflecting a color beam other than the specific color beam and the excitation beam.

An illumination system, comprising:

• an excitation light source adapted to provide an excitation beam;
• and
• a wavelength conversion filter module disposed on a transmission path of the excitation beam and comprising:
• a carrier having a plurality of optical regions and adapted to move to allow the plurality of optical regions to receive the excitation beam in order, wherein at least one of the plurality of optical regions is a wavelength conversion filter region, and the carrier has an opening overlapped with the wavelength conversion filter region;
• and
• a wavelength conversion filter unit located in the wavelength conversion filter region and comprising a filter reflective device, a second filter device, a wavelength conversion device, and a first filter device disposed on the carrier in order, wherein the first filter device is suitable for allowing the excitation beam incident on the wavelength conversion filter unit to pass through, the wavelength conversion device is suitable for converting the excitation beam into a conversion beam, the conversion beam comprises a specific color beam and a color beam other than the specific color beam, the second filter device is suitable for reflecting the specific color beam and allowing the color beam other than the specific color beam to pass through, and the first filter device is suitable for allowing the specific color beam to pass through and reflecting a color beam other than the specific color beam and the excitation beam.