Caleb T Nelson

US Patent:

20220308281, Sep 29, 2022

Filed:

Oct 2, 2020

Appl. No.:

17/639025

Inventors:

- St. Paul MN, US
Gary T. Boyd - Woodbury MN, US
David A. Rosen - North St. Paul MN, US
Bharat R. Acharya - Woodbury MN, US
Kevin W. Gotrik - Hudson WI, US
David J. Rowe - Roseville MN, US
Caleb T. Nelson - McKinney TX, US

International Classification:

F21V 8/00
G02B 5/02
G02F 1/1333
G02F 1/1335

Abstract:

An optical system includes an extended illumination source configured to emit light from an extended emission surface thereof and a light redirecting layer disposed on the extended emission surface. The light redirecting layer has a structured major surface that includes a regular array of light redirecting structures, each light redirecting structure including a plurality of facets; and a plurality of discrete spaced apart window segments. The optical system includes a plurality of reflective segments where each reflective segment is disposed on a corresponding window segment. For substantially normally incident light, each reflective segment has a total: average optical reflectance of at least 30% in a visible wavelength range extending from about 420 nm to about 650 nm; and optical transmittance of at least 10% for at least one infrared wavelength in an infrared wavelength range extending from about 800 nm to about 1200 nm.

US Patent:

20220252770, Aug 11, 2022

Filed:

Jun 3, 2020

Appl. No.:

17/596333

Inventors:

- St. Paul MN, US
Kevin W. Gotrik - Hudson WI, US
James E. Lockridge - St. Paul MN, US
Caleb T. Nelson - Woodbury MN, US
Bradley L. Givot - St. Paul MN, US
Morgan A. Priolo - Woodbury MN, US
Luke A. Schroeder - Maplewood MN, US

International Classification:

G02B 5/20
G02B 1/04
G02B 5/00

Abstract:

A light control film is described comprising a light input surface and alight output surface opposite the light input surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface, wherein the absorptive regions comprise light-absorbing or light-reflecting particles and a dried aqueous dispersion of an organic polymer. The light control film can have improved on-axis transmission in combination with sufficiently high sheet resistance such that the film does not detract from the responsiveness of a touch screen of an electronic device. Also described is a coated article and method of making.

US Patent:

20220221624, Jul 14, 2022

Filed:

Jun 11, 2020

Appl. No.:

17/596301

Inventors:

- St. Paul MN, US
Owen M. Anderson - Minneapolis MN, US
Kevin W. Gotrik - Hudson WI, US
Nicholas A. Johnson - Burnsville MN, US
Kenneth A. P. Meyer - Eagan MN, US
Caleb T. Nelson - Woodbury MN, US
Daniel J. Schmidt - Woodbury MN, US

International Classification:

G02B 5/00
G02B 5/30

Abstract:

Light control films comprise a light input surface and alight output surface opposite the light input surface and alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface. The absorptive regions have an aspect ratio of at least 30 and are canted in the same direction. The alternating transmissive regions and absorbing regions have a maximum relative transmission at a viewing angle other than 0 degrees.

US Patent:

20220213421, Jul 7, 2022

Filed:

May 29, 2020

Appl. No.:

17/610670

Inventors:

- St. Paul MN, US
Kurt J. Halverson - Lake Elmo MN, US
Steven P. Swanson - Blaine MN, US
Evan D. Brutinel - Inver Grove Heights MN, US
Caleb T. Nelson - McKinney TX, US

International Classification:

C12M 3/06
C12Q 1/10
C12N 1/20
C12M 1/00
C12M 1/12
C12M 1/34

Abstract:

A device for growing microorganisms. The device includes a body member comprising a self-supporting, water-proof substrate having upper and lower surfaces; a hydrophobic spacer element adhered to the upper surface of the substrate forming side walls to retain a predetermined amount of liquid in contact with the substrate, wherein the hydrophobic spacer element has a hole therein; a fluid control film in the hole of the hydrophobic spacer element; a cover sheet having an inner-facing surface and an outer-facing surface, the cover sheet adhered to at least a portion of the body member; and a substantially dry, first microbial growth nutrient composition disposed on a portion of the inner surface of the cover sheet; a first adhesive composition adhered to the first microbial growth nutrient composition; and a cold-water-soluble first hydrogel-forming composition adhered to the first adhesive composition.

US Patent:

20230109003, Apr 6, 2023

Filed:

Dec 12, 2022

Appl. No.:

18/064644

Inventors:

- St. Paul MN, US
Kevin W. Gotrik - Hudson WI, US
Nicholas A. Johnson - Burnsville MN, US
Raymond J. Kenney - Woodbury MN, US
Caleb T. Nelson - McKinney TX, US
Kenneth A. Epstein - St. Paul MN, US

International Classification:

G02F 1/1335
G02B 5/00
G02B 5/30

Abstract:

A light control film comprises a light input surface and a light output surface opposite the light input surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface, wherein the absorptive regions comprise a core having a first concentration, C, of a light absorbing material sandwiched between cladding layers having a second concentration, C, of the light absorbing material, wherein C < C, and wherein the cores have an aspect ratio of at least 20.

US Patent:

20230024412, Jan 26, 2023

Filed:

Dec 17, 2020

Appl. No.:

17/757329

Inventors:

- St. Paul MN, US
Kevin W. Gotrik - Hudson WI, US
Raymond J. Kenney - Woodbury MN, US
Caleb T. Nelson - McKinney TX, US
Daniel J. Schmidt - Woodbury MN, US
Riley J. Hillstrom - North Hudson WI, US

International Classification:

G02B 5/02
G02B 5/00
B05D 5/06
B05D 3/04
B05D 3/02

Abstract:

The present disclosure provides a light control film and a method of manufacturing the same. The method includes providing a microstructured film. The microstructured film includes a plurality of light transmissive regions alternated with channels. The microstructure film is defined by a top surface and a pair of side surfaces of each light transmissive region and a bottom surface of each channel. The method further includes coating the pair of side surfaces of each light transmissive region and the bottom surface of each channel with a coating. The coating includes light absorbing particles that are dispersed in a liquid. The method further includes drying the coating such that the light absorbing particles are selectively deposited on the pair of sides surfaces of each light transmissive region.

US Patent:

20230028958, Jan 26, 2023

Filed:

Dec 18, 2020

Appl. No.:

17/757743

Inventors:

- St. Paul MN, US
Nicholas A. Johnson - Woodbury MN, US
Raymond J. Kenney - Woodbury MN, US
Caleb T. Nelson - McKinney TX, US
Daniel J. Schmidt - Woodbury MN, US

International Classification:

G02B 5/00
G02B 5/28
G02B 5/30
G02B 1/04

Abstract:

A light control film comprises a light input surface and a light output surface; alternating transmissive regions and absorptive regions disposed between the light input surface and the light output surface; and TIR cladding layers. The TIR cladding layer having a refractive index, n. The transmissive regions alternate between high refractive index transmissive regions having a refractive index, n, and low refractive index transmissive regions having a refractive index, n. The absorptive regions comprise a core having a refractive index, n, adjacent an AR cladding layer; wherein n

US Patent:

20230019944, Jan 19, 2023

Filed:

Jan 13, 2021

Appl. No.:

17/787188

Inventors:

- St. Paul MN, US
Miland B. Sabade - Woodbury MN, US
Laura R. Nereng - Woodbury MN, US
Caleb T. Nelson - McKinney TX, US
James P. Burke - St. Paul MN, US
Vivian W. Jones - Woodbury MN, US

International Classification:

B32B 27/20
C08J 5/12
C08K 3/22
C08K 3/26
C08K 3/30
C08K 3/34
B32B 3/30
B32B 7/12
B32B 27/08
B32B 27/30
B32B 27/32
B32B 27/40
G02B 5/20
G02B 5/26
G02B 1/04

Abstract:

A composite cooling film including a reflective nonporous inorganic-particle-filled organic polymeric layer, an ultra-violet-protective layer or layers, and an antisoiling layer.