FIELD: electricity.
SUBSTANCE: light guide member and a light source device are disclosed. Light guide element includes reflecting plate (131) having an aperture and transflective coated plate (132). Reflective plate (131) reflects the light. Aperture allows the light to pass through it. Transflective coated plate (132) is connected to reflecting plate (131) and covers the aperture, passing the excitation light and reflecting light that is different in color from the excitation light. Light source device includes: excitation light source (110) for generating excitation light; a light guide element for passing through the aperture and transflective plate coated (132) with excitation light generated by excitation light source (110); device for generating colored light for receiving excitation light transmitted through transflective plate (132) and generating converted light by using excitation light; and a light-harvesting element for producing the converted light generated by the color light generation device.
EFFECT: light guide element reduces the loss of converted light.
7 cl, 14 dwg
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