Optical Distance Measuring Device
First Claim
1. A measuring device for optical distance measurement, in particular a handheld measuring device, comprising:
- a transmitting unit for emitting optical measurement radiation toward a target object;
a receiving unit having a detection area for detecting optical measurement radiation returning from the target object; and
an evaluation unit,wherein the detection area has a multiplicity of pixels,wherein each pixel has at least one SPAD,wherein each of the multiplicity of pixels is connected to the evaluation unit,wherein the transmitting unit and the receiving unit are designed in such a way that optical measurement radiation returning from the target object simultaneously illuminates a plurality of pixels, andwherein the evaluation unit is designed to determine a distance between the measuring device and the target object on the basis of an evaluation of detection signals of a plurality of pixels.
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Abstract
A measuring device for optically measuring a distance to a target object includes an emitter device for emitting an optical measuring beam to the target object, a capturing device including a detection surface for detecting an optical beam returned by the target object, and an evaluation device. The detection surface has a plurality of pixels, each pixel having at least one SPAD (single photon avalanche diode) and each of the plurality of pixels is connected to the evaluation device. The emitting device and the capturing device are configured in such a manner that the optical measurement beam returned by the target object simultaneously illuminates a plurality of pixels. The evaluation device is configured in order to determine the distance between the measuring device and the target object based on the evaluation of detection signals of several pixels.
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Citations
17 Claims
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1. A measuring device for optical distance measurement, in particular a handheld measuring device, comprising:
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a transmitting unit for emitting optical measurement radiation toward a target object; a receiving unit having a detection area for detecting optical measurement radiation returning from the target object; and an evaluation unit, wherein the detection area has a multiplicity of pixels, wherein each pixel has at least one SPAD, wherein each of the multiplicity of pixels is connected to the evaluation unit, wherein the transmitting unit and the receiving unit are designed in such a way that optical measurement radiation returning from the target object simultaneously illuminates a plurality of pixels, and wherein the evaluation unit is designed to determine a distance between the measuring device and the target object on the basis of an evaluation of detection signals of a plurality of pixels. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification