Patent · US Active

Reference pixel array with varying sensitivities for time of flight (TOF) sensor

US7586077B2 · kind B2 · utility

20Cited by

5References

20Claims

0Family size

Assignee

MESA Imaging AG · CH

Inventors

Michael Lehmann · Winterthur, CH
Bernhard Buettgen · Adliswil, CH
Thierry Oggier · Zürich, CH

Key dates

Filing date	Jul 17, 2008
Grant date	Sep 8, 2009
Priority date	—
Expiry date	Jul 17, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01S17/894
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The sensitivity of a reference pixel array RPA to the reference modulated light MLR is varied for different reference pixels RP of the reference pixel array RPA. In one embodiment the different sensitivities of the reference pixels RP in the RPA is achieved by designing the pixels to have different light sensitivities with respect to each other. In another embodiment, the different sensitivities are achieved by changing optical coupling between the separate reference pixels RP of the reference pixel array RPA to the reference modulated light MLR such as by changing how the different reference pixels RP couple to the aperture LGA of the light guide LG.

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