Detector having a projector for illuminating at least one object
By using a projector with a tunable laser source and a diffraction optical element, combined with an optical sensor matrix and evaluation equipment, the high computing cost and complex correspondence problems in the prior art are solved, and a method of efficiently determining the location of the object in a variety of application scenarios is realized.
CN113454419BActive Publication Date: 2025-03-21TRINAMIX GMBH
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Patent Information
- Application Number
- CN202080015509.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2019-02-20
- Filing Date
- 2020-02-20
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2040-02-20
AI Technical Summary
Technical Problem
The prior art faces high computational costs and complex correspondence problems when determining the location of an object, especially in outdoor and mobile applications, where efficient 3D sensor methods are difficult to implement.
Method used
A projector composed of a tunable laser source and diffraction optical element is used to generate multiple illumination patterns by controlling the characteristics of the laser source, and combine the optical sensor matrix and evaluation equipment to achieve reliable determination of the object position.
Benefits of technology
The requirements of technical resources and costs are reduced, and the method of reliably determining the location of objects in space is realized, which is suitable for a variety of application scenarios.
✦ Generated by Eureka AI based on patent content.
Abstract
A detector (110) is disclosed, the detector (110) comprising a projector (122) for illuminating an object (112) with two illumination patterns (124). The projector (122) comprises a tunable laser source (126) and a diffractive optical element (128). The projector (122) is configured to generate two illumination patterns (124) each comprising a plurality of illumination features by controlling a characteristic in the tunable laser source (126). The projector (122) comprises a control unit (136) for controlling the characteristic of the tunable laser source (126). The detector comprises a sensor element (114) having a matrix (116) of optical sensors (118) for generating a sensor signal. The detector comprises an evaluation device for selecting at least one reflection feature of a reflection image and for determining a ordinate z of the selected reflection feature by evaluating a combined signal Q from the sensor signal.
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