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US RE49,040 E1Granted
Light source apparatus and image projection apparatus
AssigneeRicoh Company, Ltd.
InventorIkuo Maeda
Life of this patent
Estimating the term…
Abstract
A light source apparatus includes a light source unit that includes plural sets of a laser and a coupling lens corresponding to the laser, which are circumferentially provided to form a circle; and a reflecting unit placed within the circle and provided with plural reflecting surfaces corresponding to the lasers of the plural sets of the light source unit to be formed in a cone shape, the light irradiated from each of the lasers being injected into the corresponding reflecting surface via the corresponding coupling lens.
Claims17
A light source apparatus comprising:
- a light source unit that includes plural sets of a laser and a coupling lens corresponding to the laser, which are circumferentially provided to form a circle;
- a reflecting unit placed within the circle and provided with plural reflecting surfaces corresponding to the lasers of the plural sets of the light source unit to be formed in a cone shape, the light irradiated from each of the lasers being injected into the corresponding reflecting surface via the corresponding coupling lens;
- a support member on which the lasers and the coupling lenses of the plural sets are fixed;
- and
- a radiation member provided at a surface of the support member opposite to the side where the light paths of the lights irradiated from the lasers of the sets are formed, and including a flat surface formed at a center portion, a sloped guide surface which is provided at the outer side of the flat surface to be concaved downward such as to become deeper the closer the sloped guide surface becomes to an outer periphery of the radiation member from the flat surface, and plural fins provided to rest on the concaved sloped guide surface.
2 more elements
A light source apparatus comprising:
- a light source unit that includes plural sets of a laser and a coupling lens corresponding to the laser, which are circumferentially provided to form a circle;
- a reflecting unit placed within the circle and provided with plural reflecting surfaces corresponding to the lasers of the plural sets of the light source unit, the light irradiated from each of the lasers being injected into the corresponding reflecting surface via the corresponding coupling lens;
- a support member on which the lasers and the coupling lenses of the plural sets are fixed, the lasers and the coupling lenses of the plural sets being positioned such that optical axes of the irradiated lights from the lasers are directed in a thickness direction of the support member;
- a reflecting mirror provided to change the optical paths of the lights irradiated from the lasers and passed through the coupling lenses toward the respective reflecting surfaces of the reflecting unit;
- and
- a radiation member provided at a surface of the support member opposite to the side where the light paths of the lights irradiated from the lasers of the sets are formed.
3 more elements
A light source apparatus comprising:
- a light source unit that includes plural sets of a laser and a coupling lens corresponding to the laser, which are circumferentially provided to form a circle;
- a reflecting unit placed within the circle and provided with plural reflecting surfaces corresponding to the lasers of the plural sets of the light source unit, the light irradiated from each of the lasers being injected into the corresponding reflecting surface via the corresponding coupling lens;
- a support member on which the lasers and the coupling lenses of the plural sets are fixed, the lasers and the coupling lenses of the plural sets being positioned such that optical axes of the irradiated lights from the lasers are directed in a thickness direction of the support member;
- a reflecting mirror provided to change the optical paths of the lights irradiated from the lasers and passed through the coupling lenses toward the respective reflecting surfaces of the reflecting unit;
- and
- a radiation member provided at a surface of the support member opposite to the side where the light paths of the lights irradiated from the lasers of the sets are formed, and provided with a channel.
3 more elements
Dependencies are inferred from the claim text.