Optoelectronic Sensor Arrangement and Optical Measuring Method
AssigneeOSRAM Opto Semiconductors GmbH
InventorsLuca Haiberger, Daniel Richter
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Abstract
In an embodiment an optoelectronic sensor arrangement includes a carrier substrate, an illuminating device, a frequency-selective optical element and a photodetector, wherein the illuminating device and the photodetector form a stacked arrangement on or with the carrier substrate, wherein the frequency-selective optical element is arranged between the illuminating device and the photodetector, wherein the photodetector is arranged in a cavity of the carrier substrate which is covered by the illuminating device and/or the frequency-selective optical element, and wherein the frequency-selective optical element includes a divider mirror and an optical filter.
Claims19
-19. (canceled)
An optoelectronic sensor arrangement comprising:
- a carrier substrate;
- an illuminating device;
- a frequency-selective optical element;
- and
- a photodetector,
- wherein the illuminating device and the photodetector form a stacked arrangement on or with the carrier substrate,
- wherein the frequency-selective optical element is arranged between the illuminating device and the photodetector,
- wherein the photodetector is arranged in a cavity of the carrier substrate which is covered by the illuminating device and/or the frequency-selective optical element, and
- wherein the frequency-selective optical element comprises a divider mirror and an optical filter.
An optical measuring method, the method comprising:
- coupling electromagnetic radiation generated by an illuminating device arranged on a carrier substrate into a fiber-optic element;
- and
- returning at least a portion of the radiation backscattered in the fiber-optic element to a photodetector which forms a stacked arrangement with the illuminating device on or with the carrier substrate,
- wherein the photodetector is located rearwardly of the illuminating device such that the electromagnetic radiation received by the photodetector passes through the illuminating device and through a frequency-selective optical element arranged between the illuminating device and the photodetector before reaching the photodetector.
Dependencies are inferred from the claim text.