| CPC G03B 21/204 (2013.01) [G03B 21/2066 (2013.01); G03B 21/208 (2013.01)] | 18 Claims |
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1. A projector configured to project an image on a projection target in a focus-free state, comprising:
a first light source device; and
a light modulation element configured to modulate light emitted from the first light source device, wherein
the first light source device includes
a light emitting element configured to emit first light having a first wavelength band,
a wavelength conversion member which includes a phosphor, and which is configured to convert the first light emitted from the light emitting element into second light having a second wavelength band different from the first wavelength band, and
an exit part which is disposed along a central axis of the wavelength conversion member, and which is configured to emit the second light generated by the wavelength conversion member,
the exit part has a first end part opposed to the wavelength conversion member, a second end part located at an opposite side to the first end part along the central axis, and a taper part gradually decreasing in cross-sectional area perpendicular to the central axis in a direction from the first end part toward the second end part, and
the taper part has a light exit surface which is tilted with respect to the central axis, and which is configured to emit the second light.
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