Composite optical coating on a curved optical surface

WST Lam, L Lu - US Patent 10,712,485, 2020 - Google Patents
A manufacturing system for controlling an optical axis of a birefringent material includes an
illumination system. The illumination system illuminates the birefringent material that is …

Method of producing a patterned birefringent product

H Kaneiwa, I Amimori - US Patent 8,477,423, 2013 - Google Patents
There are proposed several methods of producing birefrin gence patterns. JP-A-3-141320
(JP-A'means unexamined published Japanese patent application) discloses use of a …

Manufacture of a birefringent liquid crystal component

GJ Woodgate, J Harrold - US Patent 8,031,276, 2011 - Google Patents
The present invention relates to the manufacture of surface relief birefringent liquid crystal
components. Such compo nents are Suitable for use in a wide range of applications …

Birefringent device with application specific pupil function and optical device

D Buehler, M Kamm, M Hering - US Patent 10,684,402, 2020 - Google Patents
A birefringent device, which is configured to be mounted in an optical path of an optical
system, has an effective area in a pupil plane. The birefringent device affects different …

System and method for providing modified illumination intensity

R De Jonge - US Patent 7,403,267, 2008 - Google Patents
A system and method utilize a birefringence inducer to induce or change birefringence of an
optical element to change an index of refraction within the optical element to produce a …

Method of making an optical article with an inkjet printing device

H Nguyen, DS Jackson, A Kumar… - US Patent …, 2021 - Google Patents
A method of making an optical article having multiple light-influencing zones can include:
forming an alignment coating layer having a first alignment region and a second alignment …

Bragg liquid crystal polarization gratings

MJ Escuti, DJ Kekas, RK Komanduri - US Patent 10,859,740, 2020 - Google Patents
An optical element includes a plurality of stacked birefringent sublayers, such as liquid
crystal sublayers, configured to alter a direction of propagation of light passing therethrough …

Polarisation dependent refractive device exhibiting independtly varying first and second indices of refraction and methods of manufacture thereof

P May, K Walsh, GM Davis - US Patent 5,671,034, 1997 - Google Patents
A birefringent element is patterned such that for light of a first polarisation the element acts
as a first refractive optical element and for light of a second polarisation the optical response …

Variable optical attenuator

H Liu, D Liu, S Yin, LL Huang - US Patent 6,631,238, 2003 - Google Patents
Randomly polarized light impinges upon a birefringent crystal, is split into orthogonal
polarization components and emerges from the crystal separated by a walk-off distance. The …

Optical deflection system including an alternating sequence of birefringent prisms and polarizers

U Schmidt, W Thust - US Patent 3,572,895, 1971 - Google Patents
An optical deflection system including a plurality of birefringent prisms separated by
polarizers arranged in a sequence. At least one of the prisms has a refracting angle greater …