| CPC G03B 21/204 (2013.01) [G02B 26/008 (2013.01); G03B 21/208 (2013.01)] | 8 Claims |
|
1. A light source device comprising:
a light source unit including:
a first mounting substrate on which a first light emitting element is mounted;
a second mounting substrate that is disposed in parallel to the first mounting substrate and on which a second light emitting element is mounted; and
a base member on which the first mounting substrate and the second mounting substrate are placed;
a wavelength conversion unit including:
a wavelength conversion wheel configured to emit, from a second surface opposite to a first surface, wavelength-converted light obtained by wavelength-converting light emitted from the first light emitting element and the second light emitting element and made incident from the first surface; and
a wheel housing configured to house the wavelength conversion wheel; and
an optical unit including:
a condensing optical system configured to condense the light emitted from the first light emitting element and the second light emitting element on the wavelength conversion wheel;
a pickup optical system comprising a plurality of lenses configured to receive the wavelength-converted light emitted from the wavelength conversion wheel; and
an optical housing configured to hold the condensing optical system and the pickup optical system to locate the wavelength conversion wheel on an optical path between the condensing optical system and the pickup optical system, wherein
the condensing optical system includes:
a first lens on which the light emitted from the first light emitting element is directly made incident; and
an optical-path changing member including a first reflection surface and a second reflection surface and configured to reflect, with the first reflection surface, the light emitted from the second light emitting element in a direction in which the light is brought closer to the light emitted from the first light emitting element and reflect, with the second reflection surface, the light reflected by the first reflection surface and make the light incident on the first lens,
the optical housing includes:
a first supporting section formed to recess to a wavelength conversion wheel side of the optical housing with respect to a holding surface for holding the light source unit and configured to support the optical-path changing member; and
a second supporting section formed to recess to the wavelength conversion wheel side of the optical housing with respect to a bottom surface of the first supporting section and configured to support the first lens, and
the holding surface of the optical housing and the base member are fixed.
|