LIGHTING DEVICE AND PROJECTOR DEVICE

Abstract

A lighting device according to the present technology includes: a light source unit that has a light emitting element; a spatial light phase modulator that generates a plurality of reproduced images at intervals on an image surface by performing spatial light phase modulation on incident light from the light source unit; and a projection unit that superimposes and projects the plurality of reproduced images on a projection surface via different projection lenses.

Description

Claims

1. A lighting device, comprising: a light source unit that has a light emitting element;a spatial light phase modulator that generates a plurality of reproduced images at intervals on an image surface by performing spatial light phase modulation on incident light from the light source unit; anda projection unit that superimposes and projects the plurality of reproduced images on a projection surface via different projection lenses.

2. The lighting device according to claim 1, wherein the spatial light phase modulator generates each reproduced image using light incident on an area wider than an area formed by equally dividing a phase modulation surface for each reproduced image.

3. The lighting device according to claim 1 further comprising a control unit that changes a position or a shape of the reproduced image by controlling a phase modulation pattern in the spatial light phase modulator.

4. The lighting device according to claim 3, wherein the control unit changes an in-plane direction position of the reproduced image.

5. The lighting device according to claim 4, wherein the control unit changes an interval in an in-plane direction of the reproduced images according to a projection distance of the reproduced image.

6. The lighting device according to claim 3, wherein the control unit changes a position of the reproduced image in an optical axis direction.

7. The lighting device according to claim 6, wherein the control unit changes a position of the reproduced image in an optical axis direction according to a projection distance of the reproduced image.

8. The lighting device according to claim 3, wherein the control unit changes a shape of the reproduced image.

9. The lighting device according to claim 1, wherein a diffusion plate is disposed between the image surface and the projection lens in an optical axis direction.

10. The lighting device according to claim 1 further comprising a bending optical element that bends an incident light beam from the spatial light phase modulator in a direction of increasing an in-plane direction interval of the reproduced images on the image surface.

11. A projector device, comprising: a light source unit that has a light emitting element;a spatial light phase modulator that generates a plurality of reproduced images at intervals on an image surface by performing spatial light phase modulation on incident light from the light source unit;a projection unit that superimposes and projects the plurality of reproduced images on a projection surface via different projection lenses; anda spatial light intensity modulator that performs spatial light intensity modulation on the reproduced image on the image surface.