Microvision, Inc.

Infocus Corporation

Maarten Niesten

Christopher A Wiklof

Randall Brian Sprague

Mark O Freeman

Joshua Owen Miller

Margaret K Brown

Bin Xue

Joshua Mark Hudman

John R Lewis

Bruce Rothaar

Richard Allen James

Thomas W Montague

Stephen R Willey

V G Veeraraghavan

An integrated photonics module may include a selective fold mirror configured to pass at least a portion of emitted light toward the MEMS scanner and reflect scanned light through to a field of view. The selective fold mirror may use beam polarization to select beam passing and reflection. The integrated photonics module may include a beam rotator such as a quarter-wave plate to convert the polarization of the emitted light to a different polarization adapted for passage through the fold mirror. The integrated photonics module may include one or more light detectors.

Integrated photonics module and devices using integrated photonics modules

A variable reflectivity notch filter (), suitable for use with a laser image projection source () is provided. The variable reflectivity notch filter () defines a transmission curve () having a plurality of reflective peaks () each centered about a predetermined wavelength (), which can correspond to output wavelengths from laser sources. Reflective peaks () corresponding to wavelengths that change with temperature are configured with wider widths () and lesser reflectivities () than are other reflective peaks (). To provide enhanced color balance, lasers () corresponding to these reflective peaks () can be driven at higher output power. Variable reflectivity notch filters () are suitable for use in head-up displays as well as other applications.

Variable reflectivity notch filter and optical devices using same

Briefly, in accordance with one or more embodiments, a scanned beam display may utilize one or more post-scan optics while at least partially maintaining an infinite focus, or nearly infinite focus, property of the display. The display may comprise a light source to generate a light beam, a scanning platform to generate a raster scan from the light beam projected as a projected image, one or more post-scan optics to at least partially adjust the projected image, and one or more collimating optics to focus the light beam from the light source, the one or more collimating optics having a selected focal length to at least partially provide infinite, or nearly infinite focus, of the projected image at or beyond a selected distance.

Post-scan distortion adjustment optics for infinite focus projector system

An integrated photonics module includes at least one light source and a MEMS scanner coupled to and held in alignment by an optical frame configured for mounting to a host system. According to some embodiments, the integrated photonics module may include a plurality of light sources and a beam combiner coupled to the optical frame. According to some embodiments, the integrated photonics module includes a selective fold mirror configured to direct at least a portion of emitted light toward the MEMS scanner in a normal direction and pass scanned light through to a field of view. The selective fold mirror may use beam polarization to select beam passing and reflection. The integrated photonics module may include a beam rotator such as a quarter-wave plate to convert the polarization of the emitted light to a different polarization adapted for passage through the fold mirror. The integrated photonics module may include one or more light detectors.

A portable video projector includes facility to direct a projected image field along an axis in an alignment corresponding to the state of an optical element.

Image projector with display modes

An apparatus, system, and method for a projection device having a camera to provide for adjustments based at least in part on a series of captured images are disclosed herein.

Growing community of inventors

Kirkland, WA, United States of America

Maarten Niesten