US 10,768,314 B2Granted

Optical element

OwnerRoman Houha, Tomas Tethal +3inventors

InventorsRoman Houha, Tomas Tethal, Zbynek Ryzi, Jan Kubat, Tomas Fidler

Life of this patent

Estimating the term…

Loading patent…

Abstract

An optical element (1) comprises: a body (2) of radiation converting monocrystalline material, e.g. of a luminescent or scintillator material, and an extraction structure (4, 6) applied to at least one output or input surface of the body (2); wherein the extraction structure (4, 6) is constructed and configured such that radiation at an output (19) of the body (2) is directionally modified, especially in terms of energy or intensity or of directional distribution or of both, as compared with radiation at the output of the body (2) in the absence of said extraction structure (4, 6), by interaction of radiation entering and/or propagating within and/or exiting the body (2) with the said extraction structure (4, 6), e.g. such as to reduce or ameliorate the deleterious effects of TIR within the body (2).

Claims20

Dependent claims

An optical element comprising:

a body of radiation converting monocrystalline material, and
an extraction structure applied to at least one surface of the body of radiation converting monocrystalline material;
wherein the extraction structure is constructed and configured such that radiation at an output of the body of radiation converting monocrystalline material is directionally modified, as compared with radiation at the output of the body of radiation converting monocrystalline material in the absence of said extraction structure, by interaction of radiation selected from the group consisting of radiation entering the body, radiation propagating within the body and radiation exiting the body, of radiation converting monocrystalline material with the said extraction structure;
and wherein the extraction structure is configured such that, for at least one wavelength of the radiation at the output of the said body, the energy or intensity of the radiation at the output of the body of radiation converting monocrystalline material in at least one direction of propagation is increased, compared to the energy or intensity of the radiation at the output of the said body in the said direction in the absence of the said extraction structure.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 15/735,275Filed 10 Jun 2016
Priority: GB 1510211.411 Jun 2015
Published: US 2018/0120451 A13 May 2018
Granted: 8 Sep 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G01T 1/2002
With scintillation detectors: optical details, e.g. reflecting or diffusing layers
F21K 9/64
Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction: using wavelength…
G01T 1/202
With scintillation detectors: the detector being a crystal
H10F 39/1898
X-ray, gamma-ray or corpuscular radiation imagers: indirect radiation image sensors, e.g. using luminescent members

Family

US 2018/0120451 A1Pre-grant publication · published 3 May 2018
US 10,768,314 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key