Device and kit for cooling a light emitting material

A device comprising:

• a light emitting wheel comprising:
• a light conversion material comprising one or more of a phosphor, a ceramic phosphor, quantum dots, a luminescent material, and a fluorescent material;
• a cooling plate configured to cool the light conversion material, the cooling plate comprising a material having thermal conduction properties for removing heat from light conversion material, the light conversion material and the cooling plate having a thermal mismatch, the light conversion material expanding at a slower rate than the cooling plate when a temperature of the light emitting wheel rises;
• and,
• a kit comprising:
• a window configured to sandwich the light conversion material between the window and the cooling plate, the window configured to:
• transmit excitation light for exciting the light conversion material, the light conversion material emitting light when excited by the excitation light;
• transmit emitted light from the light conversion material;
• and,
• conduct heat away from the light conversion material to the cooling plate;
• a holder configured to:
• hold the window against the light conversion material;
• and, thermally connect the window to the cooling plate so that the heat flows from the window through the holder to the cooling plate, the holder further comprising:
• a frame for holding the window against the light conversion material along two or more sides of the window;
• and a lip and a side wall configured to conduct the heat from window to the cooling plate, the holder comprising a material similar to the material of the cooling plate;
• and,
• at least one of :
• one or more clamps that fit around a portion of the holder and a back side of cooling plate to clamp the holder against the cooling plate and in turn clamp the window against the light conversion material;
• and one or more fasteners configured to fasten the holder to the cooling plate.