3m Innovative Properties Company

Jonah Shaver

John Allen Wheatley

Kui Chen-Ho

Kristy A Gillette

Duane Douglas Fansler

Douglas Scott Dunn

Adam D Haag

Matthew B Johnson

Mark A Roehrig

Kevin W Gotrik

Susannah C Clear

Anthony F Schultz

Tien Yi T H Whiting

Bryan T Whiting

Brianna N Wheeler

Del R Lawson

Taylor J Kobe

John F VanDerlofske, Iii

Eileen M Franey

Audrey A Sherman

Thomas P Klun

Kenneth L Smith

Moses Mekala David

Richard John Pokorny

William Blake Kolb

Gilles J Benoit

Joseph D Rule

Michael A Johnson

David Scott Thompson

Zhaohui Yang

Daniel J Schmidt

Joan M Noyola

James W Howard

Raymond J Kenney

Daniel J Theis

Scott J Jones

Michelle Lund Toy

John T Strand

Jason S Petaja

Thomas J Metzler

Stephan J Pankratz

Ryan M Braun

Chad M Amb

Claire R Donoghue

Joshua M Fishman

Jon P Nietfeld

Tony J Kaufman

Hannah E Walsh

A glass laminate including first and second glass layers, a reflective film having opposed first and second major surfaces and disposed between the first and second glass layers with the first and second major surfaces facing the respective first and second glass layers, a first adhesive layer disposed between and bonding together the first glass layer and the reflective film, and a second adhesive layer disposed between and bonding together the second glass layer and the reflective film is described. The second adhesive layer is thicker than the first adhesive layer such that the first major surface of the reflective film is separated from an outermost major surface of the first glass layer by a distance d1, the second major surface of the reflective film is separated from an outermost major surface of the second glass layer by a distance d2, and 0.05≤d1/d2≤0.9.

Glass laminate including reflective film

A nanostructured article includes a substrate; a plurality of first nanostructures disposed on, and extending away from, the substrate; and a covalently crosslinked fluorinated polymeric layer disposed on the plurality of first nanostructures. The plurality of first nanostructures includes polyurethane. The polymeric layer at least partially fills spaces between the first nanostructures to an average minimum height above the substrate of at least 30 nm such that the polymeric layer has a nanostructured surface defined by, and facing away from, the plurality of first nanostructures.

Nanostructured article

An optical device is disclosed and includes an optical sensor, a plurality of photosensitive pixels disposed on the optical sensor, a wavelength-selective optical filter in optical communication with the photosensitive pixels, and a plurality of spatially-variant written regions disposed in the optical filter, the written regions having a transmission spectrum and each of the written regions being larger than each of the pixels.

Sensor array spectrometer

A glass laminate () including first and second glass layers (), a reflective film () having opposed first and second major surfaces and disposed between the first and second glass layers () with the first and second major surfaces facing the respective first and second glass layers (), a first adhesive layer () disposed between and bonding together the first glass layer () and the reflective film (), and a second adhesive layer () disposed between and bonding together the second glass layer () and the reflective film () is described. The second adhesive layer () is thicker than the first adhesive layer () such that the first major surface of the reflective film () is separated from an outermost major surface of the first glass layer () by distance d, the second major surface of the reflective film () is separated from an outermost major surface of the second glass layer () by a distance d, and 0.05<d/d<0.9.

The disclosed patterned wavelength-selective material and process for making the patterned wavelength-selective material uses patterned applied adhesive and a structurally weak wavelength-selective material that includes portions that contact the adhesive and break to remain in contact with the adhesive. In one embodiment, the wavelength-selective material comprises an array of sections with cuts at least partially through a wavelength-selective film at each section secured to the adhesive. In another embodiment, the wavelength-selective film comprises a transfer stack of layers.

Patterned wavelength-selective film

Wavelength-selective films are visibly apparent under the selective wavelength. Wavelength-selective films typically reflect off axis the selected wavelength and therefore can provide high-contrast against a background when applied in a pattern on a substrate. However, it is difficult to apply unique patterned embedded images from film. Disclosed is a cost-effective method and construction of a patterned wavelength-selective image to a substrate. In the disclosed wavelength-selective image, wavelength-selective film particles are applied to an adhesive pattern to create the wavelength-selective image.

Patterned wavelength-selective image

A backlight includes an extended light source adapted to emit light. A reflective polarizer is disposed on the extended light source, such that for substantially normally incident light and for at least a first wavelength in a range from about 420 nanometer (nm) to about 650 nm, the reflective polarizer reflects at least 60% of the incident light having a first polarization state and transmits at least 60% of the incident light having an orthogonal second polarization state. A first prismatic film is disposed between the extended light source and the reflective polarizer. A retarder layer is disposed between the reflective polarizer and the first prismatic film, such that for substantially normally incident light at a wavelength of about 550 nm, the retarder layer has a retardance nW, where n is an integer ≥1 and W is a wavelength between about 160 nm and about 300 nm.

Backlight for display

An optical system is disclosed and includes an optical sensor, a plurality of photosensitive pixels disposed on the optical sensor, a wavelength-selective optical filter in optical communication with the photosensitive pixels, the wavelength-selective optical filter being disposed remotely from the optical sensor, an area disposed in the wavelength-selective optical filter, the area having a transmission spectrum different from a transmission spectrum of a portion of the wavelength-selective optical filter not in the area and a reflector, the wavelength-selective optical filter and a measurement subject each being disposed between the reflector and the optical sensor along an optical path.

Systems, assemblies, and methods for detecting changes in polarization states are described. Example systems may include a light receiving unit including a sensor and a receiving polarizer. The sensor is configured to sense light from a polarized light source deflected through the receiving polarizer by a light directing article. The sensor is configured to generate a signal indicative a received polarization state of light deflected by the light directing articles. Such systems may be coupled to vehicles and may be useful for sensor-detectable signs, indicia, and markings to facilitate automated or assisted vehicular transport.

Optical sensor systems

Growing community of inventors

Saint Paul, MN, United States of America

Jonah Shaver