Abstract: A light source module includes: a light source to emit a light beam having a first wavelength band in a first direction; a first condenser lens to condense the light beam emitted from the light source in the first direction; a condenser optical system to condense the light beam from the first condenser lens in a second direction orthogonal to the first direction to form an irradiation spot; a wavelength converter to convert the first wavelength band of the light beam condensed by the condenser optical system into a light beam having a second wavelength band; a second condenser lens to condense the light beam having the second wavelength band at a predetermined position, a first adjuster to adjust a position of the first condenser lens; and a second adjuster to adjust a position of the second condenser lens.

Abstract: A light source device includes: a light emitter including a light emitting surface to emit first light having a first wavelength in a light emitting direction; an optical system to condense the first light having the first wavelength at a light condensed position; and a wavelength converter including a wavelength conversion region to convert the first light having the first wavelength to second light having a second wavelength. A center axis of the wavelength converter is parallel to the light emitting surface, the light emitter is at a position adjacent to one end of the wavelength converter in the light emitting direction in a plane orthogonal to the center axis of the wavelength converter, and the light condensed position of the optical system is closer to the light emitter than another end of the wavelength converter opposite to the one end in the light emitting direction in the plane.

Abstract: A cooling device, a light-source device, an image projection apparatus, and a wavelength converter. The cooling device includes a housing having a storage space, the storage space storing a heater and a base on which the heater is disposed, a heatsink at least partially disposed in the storage space and thermally connected to a space outside the storage space to dissipate heat generated by the heater to outside of the storage space, and an airflow path forming member covering at least some of the heatsink and forming a path for the heatsink to receive air flow absorbing the heat generated by the heater. In the cooling device, the heater or the base at least partially protruding from the airflow path member when the airflow path member is viewed in a direction orthogonal to a face of the heater on which light strikes.

Abstract: A fixing device includes a body and a cover. The body includes a roller and a positioning projection projecting from the body. The cover is supported on one end side in an axial direction of the roller and has a slot in which the positioning projection is inserted. The cover is configured to pivot on the positioning projection inserted in the slot, from a closed position to a retreated position from the body.

Abstract: A fixing device includes a body and a cover. The body includes a roller and a positioning projection projecting from the body. The cover is supported on one end side in an axial direction of the roller and has a slot in which the positioning projection is inserted. The cover is configured to pivot on the positioning projection inserted in the slot, from a closed position to a retreated position from the body.