Inventor

FREIER DAVID G

US37 patents

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

FREIER DAVID G

3M INNOVATIVE PROPERTIES CO

Low-loss face diffuser films for backlit signage and methods for using same

Signage having films to reduce power consumption and improve luminance uniformity and method for using same

Illuminated sign with lamp masks for uniform illumination

Method and apparatus for backlight simulation

Bollard luminaire window

Luminaire for crosswalk, method for making, and method for controlling

OLED display with improved color uniformity

Off-axis cassegrain solar collector

Recycling backlights with semi-specular components

Thin hollow backlights with beneficial design characteristics

Backlight and display system using same

Computerized modeling for design and evaluation of organic light emitting diodes

Optical stack for improved color uniformity in OLED display

Illuminated light duct joint

Hollow light duct bend

Light duct elbow for ducted illumination

Curved light duct extraction

Rectangular light duct extraction

Nanostructured article

FREIER DAVID G

Concentrating daylight collector

Light duct bend

Light duct tee extractor

Switchable light-duct extraction

WEBER MICHAEL F

Backlight and display system using same

Recycling backlights with semi-specular components

HOFFEND JR THOMAS R

Optical decollimator for daylighting systems

Collimating light injectors for edge-lit backlights

3M INNOVATIVE PROPERTIES COMPANY

Organic light emitting diode display with color-correction component having different color mixing weights

Organic light emitting diode with color-correction for maximum white-point color shift

MEIS MICHAEL A

Light directing sign substrate

Energy efficient sign

O'NEILL MARK B

Hollow backlight with structured films

KRISTOFFERSEN MARTIN

Lighting assemblies and systems

NEVITT TIMOTHY J

Thin hollow backlights with beneficial design characteristics

JOHNSTON RAYMOND P

Suspended optical film

LUNDIN DAVID J

Light injection coupler for coupling light guides

CORRIGAN THOMAS R J

Light duct tee splitter