Systems and methods for projection mirror adjustment
AssigneeDell Products L.P.
InventorThitipant Tantasirikorn
Life of this patent
Estimating the term…
Abstract
Systems and methods for adjusting a projection mirror of a rear projection device, that may be utilized to properly align an image projected by an image source within a desired projection area of the projection screen by adjusting the positional orientation of an image reflected by the adjustable projection mirror relative to a projection screen of the projection device based on one or more measured characteristics of light reflected by the projection mirror for projection onto the projection screen.
Claims20
A rear projection device, comprising:
- an image source;
- a rear projection screen;
- an adjustable projection mirror;
- an actuator assembly physically coupled to said adjustable projection mirror;
- and
- one or more photosensors disposed on or adjacent said rear projection screen;
- wherein said image source, said actuator assembly and said one or more photosensors are configured to be electronically coupled to position correction and actuator control circuitry.
A rear projection device, comprising:
- an image source;
- a rear projection screen;
- an adjustable projection mirror;
- an actuator assembly physically coupled to said adjustable projection mirror;
- and
- at least one measurement light source configured to emit at least one measurement light beam that is reflected by said adjustable projection mirror for display on a surface of said rear projection screen;
- wherein said measurement light source and said actuator assembly are configured to be electronically coupled to position correction and actuator control circuitry.
A projection mirror adjustment method, comprising moving an adjustable projection mirror of a rear projection device based on one or more measured characteristics of light projected onto a rear surface of a projection screen of said rear projection device through said adjustable projection mirror.
Dependencies are inferred from the claim text.