Inventor

FREEMAN MARK O

US42 patents

⚠️ This page may combine multiple inventors who share the name “FREEMAN MARK O”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FREEMAN MARK O

MICROVISION INC

Substrate-guided display with improved image quality

Wide field of view head-up display system

Integrated photonics module and devices using integrated photonics modules

Display with image-guiding substrate

Embedded relay lens for head-up displays or the like

Substrate-guided relays for use with scanned beam light sources

Integrated photonics module and devices using integrated photonics modules

Integrated photonics module and devices using integrated photonics modules

Integrated photonics module and devices using integrated photonics modules

Substrate-guided display having polarization selective input structure

Optical device for use with scanned beam light sources

Substrate-guided display with improved image quality

Buried numerical aperture expander having transparent properties

Avoiding interference artifacts in a head-up display or a reflected see-through type display

Integrated photonics module and devices using integrated photonics modules

Laser projection source with birefringent wedge for speckle reduction

Projection system using high-frequency drive modulation to reduce perceived speckle

IND TECH RES INST

Diffractive stack pickup head for optical disk drives and method to fabricate the pickup head

Dual-wavelength optical pickup head

Two-wavelength semiconductor laser diode package for use on the read/write head of an optical drive capable of reading different types of optical discs

Single surface diffractive element for optical pickup heads

Multiple-beam holographic optical pick-up head

Robust and versatile focus/tracking method and system for optical pickup heads

FREEMAN MARK O

Correcting scanned projector distortion by varying the scan amplitude

Mixed polarization imaging system for three-dimensional projection and corresponding methods

Scanning projector with dynamic scan angle

LESCURE ALBAN N

Laser scanning imaging system with reduced speckle

Laser projection source with polarization diversity element for speckle reduction

Scanned projection system using polymerized liquid crystal layer for speckle reduction

BROWN MARGARET K

Image generation with interpolation of pixels on a grid to pixels on a scan trajectory

Electronic alignment of primary color pixels in a scanned display

Image generation with interpolation and distortion correction

DUELLI MARKUS

Diffractive optical element having periodically repeating phase mask and system for reducing perceived speckle

Active polarization switch for speckle reduction in laser projection sources

UNIV COLORADO BOARD OF

Chiral smectic liquid crystal optical modulators having variable retardation

SMART PICTURE TECH INC

Image based measurement system

OPTO ELECTRONICS & SYSTEMS LAB

Holographic optical element for optical disk pickup head

CHAMPION MARK

Projection system with multi-phased scanning trajectory

HUDMAN JOSHUA M

Scanned beam display having a redirected exit cone using a diffraction grating

POWELL KARLTON D

Apparent speckle reduction via beam offset diversity in pupil space

VISWANATHAN P SELVAN

Scanned image projection system with gesture control input

IND TECHNOLOGY INST

Diffractive stack pickup head for optical disk drives and method to fabricate the pickup head