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Detector for optically detecting at least one object
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A technology of detectors and optical sensors, applied in the field of detectors, can solve problems such as inaccurate travel time
Pending Publication Date: 2019-10-29
TRINAMIX GMBH
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Also, especially for time-of-flight measurements, the travel time of light through an optical fiber may not be accurate enough
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[0494] exist figure 1 , a schematic diagram of an exemplary embodiment of a detector 110 for determining the position of at least one object 112 is depicted. exist figure 1 In , object 112 is depicted for two different object distances. The detector 110 includes at least two optical sensors 113 , for example a first optical sensor 118 and a second optical sensor 120 , each optical sensor having at least one photosensitive area 121 . The object 112 may include at least one beacon device 114 from which a light beam 116 (also referred to as an incident light beam) propagates towards the detector 110 . Additionally or alternatively, the detector may comprise at least one illumination source 115 for illuminating the object 112 . As an example, the illumination source 115 may be configured to generate an illumination beam for illuminating the object 112 . In particular, the illumination source 115 may include at least one laser and / or laser source. Various types of lasers can b...
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Abstract
A detector (110) for determining a position of at least one object is proposed. The detector (110) comprises: at least one angle dependent optical element (130) adapted to generate at least one lightbeam (131) having at least one beam profile depending on an angle of incidence of an incident light beam (116) propagating from the object (112) towards the detector (110) and illuminating the angle dependent optical element (130), wherein the angle dependent optical element (130) comprises at least one optical element selected from the group consisting of: at least one optical fiber, in particular at least one multifurcated optical fiber, in particular at least one bifurcated optical fiber; at least one diffractive optical element; at least one angle dependent reflective element, at least onediffractive grating element, in particular a blaze grating element; at least one aperture stop; at least one prism; at least one lens; at least one lens array, in particular at least one microlens array; at least one optical filter; at least one polarization filter; at least one bandpass filter; at least one liquid crystal filter, in particular a liquid crystal tunable filter; at least one short-pass filter; at least one long-pass filter; at least one notch filter; at least one interference filter; at least one transmission grating; at least one nonlinear optical element, in particular one birfringent optical element; at least two optical sensors (113), wherein each optical sensor (113) has at least one light sensitive area (121), wherein each optical sensor (113) is designed to generateat least one sensor signal in response to an illumination of its respective light-sensitive area by the light beam (131) generated by the angle dependent optical element (130); at least one evaluationdevice (133) being configured for determining at least one longitudinal coordinate z of the object (112) by evaluating a combined signal Q from the sensor signals.
Description
technical field [0001] The invention relates to a detector, a detector system and a method for determining the position of at least one object. The invention further relates to various uses of human machine interfaces, entertainment devices, tracking systems, cameras, scanning systems and detector devices for exchanging at least one item of information between a user and a machine. The devices, systems, methods and uses according to the invention can in particular be used, for example, in everyday life, games, traffic technology, production technology, safety technology, photography (such as digital or video photography for artistic, documentation or technical purposes), medical Various fields of technology or science. Furthermore, the invention may be used in particular for scanning one or more objects and / or for scanning a scene, for example, in the fields of architecture, metrology, archaeology, art, medicine, engineering or manufacturing, such as for generating depth pro...
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