Patent · US Active

Optical detector

US11125880B2 · kind B2 · utility

4Cited by

100References

54Claims

0Family size

Assignee

BASF SE

Inventors

Robert Send · Karlsruhe, DE
Ingmar Bruder · Neuleiningen, DE
Sebastian Valouch · Lampertheim, DE
Stephan Irle · Siegen, DE
Erwin Thiel · Siegen, DE
Heiko Hengen · Kandel, DE

Key dates

Filing date	Dec 7, 2015
Grant date	Sep 21, 2021
Priority date	—
Expiry date	Jan 20, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH04N25/00
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method of controlling pixels (134) of at least one spatial light modulator (114) is disclosed. The spatial light modulator (114) has a matrix of pixels (132). Each pixel (134) is individually controllable. The method comprises the following steps: receiving at least one image (331), (342); defining at least one image segment (333) within the image (331),(344); assigning at least one gray scale value to each image segment (333),(348); assigning at least one pixel (134) of the matrix of pixels (132) to each image segment (333),(350); assigning a unique modulation frequency to each gray scale value assigned to the at least one image segment (333),(352); controlling the at least one pixel (134) of the matrix of pixels (132) assigned to the at least one image segment (333) with the unique modulation frequency assigned to the respective image segment (333),(354).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.