Three dimensional laser image projector
AssigneeInternational Business Machines Corporation
InventorCasimer M. DeCusatis
Life of this patent
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Abstract
A projection system is provided. The system includes a first light source emitting light at a first polarization. A second light source is provided adjacent the first light source, the second light source emitting light at a second polarization. A digital mirror device (DMD) is provided having a first axis. A mirror optically is disposed adjacent the DMD between the first light source, the second light source and the DMD. The first light source and second light source emit light that is reflected onto the DMD.
Claims16
A system comprising:
- a first light source having a first green laser diode, a first blue laser diode and a first red laser diode;
- a second light source disposed adjacent to the first light source, the second light source having a second green laser diode, a second blue laser diode and a second red laser diode, wherein the first light source and the second light source are arranged to emit light on a common optic axis, wherein the first light source and second light source are arranged to direct light in the same direction, perpendicular to the common optic axis;
- a mirror disposed along the common optic axis;
- and,
- a DMD disposed to reflect light received from the mirror between the mirror and the second light source, the DMD including an image surface and an axis perpendicular to the image surface, the DMD axis being perpendicular to the common optic axis;
- and
- wherein the first light source and second light source are arranged to direct light on the common optic axis past the DMD prior to the light reflecting off of the mirror.
A system comprising:
- a first light source having a first green laser diode, a first blue laser diode and a first red laser diode;
- a second light source disposed adjacent to the first light source, the second light source having a second green laser diode, a second blue laser diode and a second red laser diode, wherein the first light source and the second light source are arranged to emit light on a common optic axis;
- a mirror disposed along the common optic axis;
- and,
- a DMD disposed adjacent the mirror;
- a projection lens adjacent the DMD, the projection lens positioned to receive light reflected from the DMD, the projection lens further having a first axis;
- wherein the DMD includes an image surface and a second axis perpendicular to the image surface, the second axis being parallel to and offset from the first axis.
A projector system for a portable electronic device comprising:
- a first light source having a first green laser diode, a first blue laser diode and a first red laser diode;
- a second light source disposed adjacent to the first light source, the second light source having a second green laser diode, a second blue laser diode and a second red laser diode, wherein the first light source and the second light source are arranged to emit light on a common optic axis;
- a first collimating lens integrally coupled to the first green laser diode and the second green laser diode;
- a second collimating lens integrally coupled to the first blue laser diode and the second blue laser diode;
- a third collimating lens integrally coupled to the first red laser diode and the second red laser diode;
- a mirror arranged to reflect light from the first light source and the second light source;
- and,
- an imaging device arranged adjacent the mirror.
Dependencies are inferred from the claim text.