Patent · US Active

Projector for projecting images

US9773444B2 · kind B2 · utility

1Cited by

7References

11Claims

0Family size

Assignee

Carl Zeiss AG · DE

Inventors

Bryce Anton Moffat · Jena, DE
Christoph Nieten · Jena, DE
Enrico GEIßLER · Jena, DE
Alexander Gratzke · Jena, DE
Axel Krause · Lechenich, DE

Key dates

Filing date	Jan 13, 2017
Grant date	Sep 26, 2017
Priority date	—
Expiry date	Jan 13, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG09G2360/16
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Each modulator of an image projector includes multiple pixels arranged in rows and columns, switchable independently of each other into a first state, in which light incident on them is used to generate an image, and into a second state, in which light incident on them is not used to generate an image. At least one first pixel is assigned to each second pixel such that the imaging optical system a) strikes the second pixel with light from the respective assigned first pixel when the assigned first pixel is switched into the first state, in order to illuminate the second pixel actively, and b) does not strike the second pixel it with light from the respective assigned first pixel when the assigned first pixel is switched into the second state, in order not to illuminate the second pixel actively. A control unit that controls the modulators is also disclosed.

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