Offset projection system
AssigneeHewlett-Packard Development Company, L.P.
InventorsScott Lerner, Anurag Gupta
Life of this patent
Estimating the term…
Abstract
A projection system comprising an illumination relay, a coupling lens, a modulation device, and a projection lens is provided. The illumination relay is configured to provide an illumination beam to the coupling lens along an illumination path having a first optical axis. The coupling lens is configured to direct the illumination beam onto the modulation device. The modulation device is configured to modulate the illumination beam to form an imaging beam and reflect the imaging beam into the coupling lens. The coupling lens is configured to direct the imaging beam into the projection lens along a projection path having a first optical axis such that the second optical axis is substantially parallel with the first optical axis.
Claims31
A projection system comprising:
- an illumination relay;
- a coupling lens;
- a modulation device;
- and
- a projection lens;
- wherein the illumination relay is configured to provide an illumination beam to the coupling lens along an illumination path having a first optical axis, wherein the coupling lens is configured to direct the illumination beam onto the modulation device, wherein the modulation device is configured to modulate the illumination beam to form an imaging beam and reflect the imaging beam into the coupling lens, wherein the coupling lens is configured to direct the imaging beam into the projection lens along a projection path having a second optical axis such that the second optical axis is substantially parallel and offset with the first optical axis.
A system comprising:
- an illumination relay configured to provide an illumination beam along an illumination path having a first optical axis;
- a modulation device configured to modulate the illumination beam to form an imaging beam;
- a projection lens;
- and
- means for directing the illumination beam from the illumination relay onto the modulation device and for directing the imaging beam from the modulation device into the projection lens along a projection path having a second optical axis such that the second optical axis is substantially parallel with the first optical axis.
A method comprising:
- providing an illumination relay configured to provide an illumination beam along an illumination path having a first optical axis;
- providing a modulation device configured to modulate the illumination beam to form an imaging beam;
- and
- providing a coupling lens configured to direct the illumination beam onto the modulation device and direct the imaging beam into a projection lens along a projection path having a second optical axis such that the second optical axis is substantially parallel with the first optical axis.
A method comprising:
- providing an illumination beam along an illumination path having a first optical axis to a coupling lens;
- directing the illumination beam from the illumination path onto a modulation device using a coupling lens;
- generating an imaging beam from the illumination beam using the modulation device;
- and
- directing the imaging beam from the modulation device into a projection lens along a projection path having a second optical axis using the coupling lens such that the second optical axis is substantially parallel with the first optical axis.
A system comprising:
- a coupling lens;
- and
- a modulation device;
- wherein the coupling lens is configured to receive an illumination beam along a first path having a first optical axis, wherein the coupling lens is configured to direct the illumination beam onto the modulation device, wherein the modulation device is configured to modulate the illumination beam to form an imaging beam and reflect the imaging beam into the coupling lens, and wherein the coupling lens is configured to direct the imaging beam along a second path having a second optical axis such that the second optical axis is substantially parallel and offset with the first optical axis.
Dependencies are inferred from the claim text.