Lighting device

A lighting device, comprising:

• at least a first solid state light emitter;
• and
• at least a first light mixing element, the first light mixing element comprising at least a first mixing element region and a second mixing element region, at least some light emitted by the first solid state light emitter entering the first light mixing element and then exiting the first light mixing element,
• the second mixing element region defining at least a first aperture, the second mixing element region covering a surface of the first mixing element region except for at least a first exit region of the first mixing element region which is exposed to the first aperture,
• a largest dimension of the first light mixing element is not larger than 16 mm.

A lighting device, comprising:

• at least a first solid state light emitter;
• and
• at least a first light mixing element,
• at least 80 percent of a total amount of light emitted by the first solid state light emitter entering an entrance region of the first light mixing element,
• at least 10 percent of light emitted by the first solid state light emitter that enters the first light mixing element is reflected at least once within the first light mixing element,
• at least 70 percent of a total amount of light emitted by the first solid state light emitter that enters the first light mixing element exiting from an exit region of the first light mixing element, and
• the exit region of the first light mixing element having a surface area between about 50% to about 300% of the surface area of the entrance region.

A lighting device, comprising:

• at least a first solid state light emitter;
• at least a first light mixing element;
• and
• at least a first light output shaping element,
• at least 10 percent of light emitted by the first solid state light emitter that enters the first light mixing element is reflected at least once within the first light mixing element,
• at least some light emitted by the first solid state light emitter entering the first light mixing element, then exiting the first light mixing element into the first light output shaping element, and then exiting the lighting device, and
• the first light output shaping element defining an exit aperture having a dimension that is at least three times a largest dimension of the first light mixing element.

A lighting device, comprising:

• at least first and second solid state light emitters;
• and
• at least a first light mixing element,
• at least some light emitted by the first solid state light emitter entering the first light mixing element and then exiting the first light mixing element,
• at least 10 percent of light emitted by the first solid state light emitter that enters the first light mixing element is reflected at least once within the first light mixing element,
• a largest dimension of the first light mixing element not larger than 16 mm,
• the first solid state light emitter configured to emit light within a first region on a 1976 CIE Chromaticity Diagram,
• the second solid state light emitter configured to emit light within a second region on a 1976 CIE Chromaticity Diagram, and
• each point within the first region spaced from each point within the second region by at least 0.01 u′, v′ units on a 1976 CIE Chromaticity Diagram.

A lighting device, comprising:

• at least a first solid state light emitter;
• and
• at least a first light mixing element, the first light mixing element comprising at least a first mixing element region and a second mixing element region,
• at least 80 percent of a total amount of light emitted by the first solid state light entering an entrance region of the first light mixing element,
• at least 70 percent of a total amount of light emitted by the first solid state light emitter that enters the first light mixing element exiting from an exit region of the first light mixing element,
• the exit region of the first light mixing element having a surface area between about 50% to about 300% of the surface area of the entrance region, and
• a largest dimension of the first light mixing element not larger than 16 mm.

A lighting device, comprising:

• at least a first solid state light emitter;
• at least a first light mixing element;
• and
• at least a first light output shaping element,
• the first light mixing element comprising at least a first mixing element region and a second mixing element region,
• at least some light emitted by the first solid state light emitter entering the first light mixing element and then exiting the first light mixing element,
• a largest dimension of the first light mixing element is not larger than 16 mm,
• at least some light emitted by the first solid state light emitter entering the first light mixing element, then exiting the first light mixing element into the first light output shaping element, and then exiting the lighting device.

A lighting device, comprising:

• at least a first solid state light emitter;
• and
• at least a first light mixing element,
• at least 80 percent of a total amount of light emitted by the first solid state light emitter enters an entrance region of the first light mixing element,
• at least 70 percent of a total amount of light emitted by the first solid state light emitter that enters the first light mixing element exits from an exit region of the first light mixing element, and
• the lighting device further comprises at least a first light output shaping element that defines an exit aperture having a surface area that is at least eight times the surface area of the exit region of the first light mixing element.

A lighting device, comprising:

• at least first and second solid state light emitters;
• and
• at least a first light mixing element, the first light mixing element comprising at least a first mixing element region and a second mixing element region,
• at least some light emitted by the first solid state light emitter entering the first light mixing element and then exiting the first light mixing element,
• a largest dimension of the first light mixing element not larger than 16 mm,
• the first solid state light emitter configured to emit light within a first region on a 1976 CIE Chromaticity Diagram,
• the second solid state light emitter configured to emit light within a second region on a 1976 CIE Chromaticity Diagram,
• each point within the first region spaced from each point within the second region by at least 0.01 u′, v′ units on a 1976 CIE Chromaticity Diagram.