(73) Assignee: Dolby Laboratories Licensing US PATENT DOCUMENTS Corporation, San
Francisco, CA (US) 5,619,256 A 4/1997 Haskell (*) Notice: Subject to any disclaimer, the …

Undesirably high energy-consumption in illuminating devices can be caused at least in part
by wasted (attenuated) light. Optically efficient illumination systems that may be used to …

Dual or multi-modulation display systems comprising a first modulator and a second
modulator are disclosed. The first modulator may comprise a plurality of analog mirrors (eg …

An imaging apparatus for two-stage light modulation in high-definition digital projection or
cinema can include two light modulators. Each light modulator can include a multi-chip …

A projector system includes an imaging device operable to direct light to a reflective screen,
and an active light steering element placed in the light path between the imaging device and …

BACKGROUND Over the last several decades, cinematic imagery and broadcast content
workflows have increased in resolution. This has led to displays used for the consumption of …

Projection systems and/or methods for efficient use of light by recycling a portion of the light
energy for future use are disclosed. In one embodiment, a projection display system is …

Image display apparatus and methods may use a single imaging element such as a digital
mirror device (DMD) to spatially modulate plural color channels. A color channel may …

A method for automatic delivery of consistent imagery in a multi-projector system includes
the steps of dividing the projectors into a plurality of sub-groups of projectors, each projector …

Dual or multi-modulation display system are disclosed that comprise projector systems with
at least one modulator that may employ non-mechanical beam steering modulation. Many …