Light source apparatus including a microlens array, projector including a microlens array, microlens array, and light source control method for the light source apparatus including the microlens array
AssigneeCasio Computer Co., Ltd.
InventorHiroshi Ogino
Life of this patent
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Abstract
A light source apparatus includes a light source, a light collection optical system configured to collect a pencil of light emitted from the light source using multiple lenses, a microlens array formed into a size corresponding to a collected light diameter of a pencil of light collected by the light collection optical system and caused to be incident thereon from the light collection optical system, and a display device on to which light transmitted through the microlens array to be superimposed together is incident.
Claims20
A light source apparatus comprising:
- a light source;
- at least one lens configured to collect light emitted from the light source;
- a microlens array formed into a size corresponding to a collected light diameter of the light collected by the at least one lens and caused to be incident thereon from the at least one lens;
- and
- a display device on which light transmitted through the microlens array to be superimposed together is incident;
- wherein the at least one lens comprise a third collective lens having a convex surface on an incident side and a concave surface on an emerging side thereof.
A projector comprising:
- a light source;
- at least one lens configured to collect light emitted from the light source;
- a microlens array formed into a size corresponding to a collected light diameter of the light collected by the at least one lens and caused to be incident thereon from the at least one lens;
- a display device on which light transmitted through the microlens array to be superimposed together is incident;
- a projection optical system configured to project the image light;
- and
- a control unit configured to control the light source and the display device,
- wherein the at least one lens comprises a first collective lens having a convex surface on an incident side and a flat surface on an emerging side thereof, or a second collective lens having a convex surface on an incident side and a concave surface on an emerging side thereof, and a third collective lens having a convex surface on an incident side and a concave surface on an emerging side thereof, wherein the light emitted from the first collective lens or the second collective lens is incident on the incident side of the third collective lens,
- wherein the light emitted from the third collective lens is incident on the microlens array.
A light source control method for a light source apparatus comprising a light source, at least one lens, a microlens array formed into a size corresponding to a collected light diameter of light collected by the at least one lens and caused to be incident thereon from the at least one lens, a display device, and a control unit configured to control the light source and the display device, wherein the at least one lens comprises a first collective lens having a convex surface on an incident side and a flat surface on an emerging side thereof, or a second collective lens having a convex surface on an incident side and a concave surface on an emerging side thereof, and a third collective lens having a convex surface on an incident side and a concave surface on an emerging side thereof, wherein the light emitted from the first collective lens or the second collective lens is incident on the incident side of the third collective lens,
- wherein the control unit causes the at least one lens to collect the light emitted from the light source, causes the light which was emitted from the third collective lens to incident on the microlens array, and causes the light superimposed together by transmission via the microlens array to be shined on the display device.
Dependencies are inferred from the claim text.