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US 7,452,085 B2Granted
Dynamically adjustable fold-mirror assembly for projection device
AssigneeInFocus Corporation
InventorsKarl Andersen, Michael Försth
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Abstract
An apparatus, system, and method for a fold-mirror assembly with a dynamically adjustable mirror element for use in a projection device are disclosed herein.
Claims18
A proiection device comprising:
- a light source configured to provide light;
- a controller configured to generate a first control signal to receive an image signal and to output a second control signal based at least in part on the image signal;
- a fold-mirror assembly coupled to the controller and positioned to receive light from the light source, the fold-mirror assembly having a mirror element configured to be in a first angular disposition relative to the light source and to transition to a second angular disposition relative to the light source based at least in part on the first control signal;
- an aperture mask having one or more apertures configured to transmit a first amount of light while the mirror element is in the first angular disposition and to transmit a second amount of light while the mirror element is in the second angular disposition, the second amount being less than the first amount;
- and
- a light modulator coupled to the controller and optically coupled to the fold-mirror assembly and configured to receive light from the fold-mirror assembly and to modulate the light based at least in part on the second control signal.
3 more elements
A system comprising:
- an image source configured to output an image signal;
- and
- a projection device coupled to the image source and configured to receive the image signal and to project an image based at least in part on the image signal, the proiection device including
- a light source configured to provide light;
- a controller configured to generate a first control signal and a second control signal, the second control signal based at least in part on the image signal,
- a fold-mirror assembly coupled to the controller and positioned to receive light from the light source, the fold-mirror assembly having a mirror element configured to be in a first angular disposition relative to the light source and to transition to a second angular disposition relative to the light source based at least in part on the first control signal;
- an aperture mask having one or more apertures configured to transmit a first amount of light while the mirror element is in the first angular disposition and to transmit a second amount of light while the mirror element is in the second angular disposition, the second amount being less than the first amount;
- and
- a light modulator coupled to the controller and optically coupled to the fold-mirror assembly and configured to receive light from the fold-mirror assembly and to modulate the light based at least in part on the second control signal.
6 more elements
An apparatus comprising:
- a light source configured to provide light;
- a controller configured to receive an image signal and to generate a first control signal and a second control signal, the second control signal generated based at least in part on the image signal;
- a fold-mirror assembly coupled to the controller and positioned to receive light from the light source, the fold-mirror assembly having a mirror element configured to be in a first angular disposition relative to the light source and to transition to a second angular disposition relative to the light source based at least in part on the first control signal;
- and
- a light modulator configured to receive light from the fold-mirror assembly and to modulate the light based at least in part on the second control signal.
2 more elements
Dependencies are inferred from the claim text.