Customer-design approach in development of LED array-based range-imaging sensors: applications case studies

Janusz A. Marszalec

doi:10.1117/12.281288

19 August 1997 Customer-design approach in development of LED array-based range-imaging sensors: applications case studies

Janusz A. Marszalec

Author Affiliations +

Proceedings Volume 3101, New Image Processing Techniques and Applications: Algorithms, Methods, and Components II; (1997) https://doi.org/10.1117/12.281288
Event: Lasers and Optics in Manufacturing III, 1997, Munich, Germany

Abstract

An angular scan triangulation range imaging sensor using an integrated array of light-emitting diodes (LEDs) and a lateral-effect position-sensing detector is described in the paper. A range map is obtained by means of fast electronic scanning of the LEDs of the array. No moving parts are needed for the scanning. The sensor can be designed according to the customer needs. Two application cases of specially developed devices are studied. In one case the sensor is used for profile measurements of cylindrical objects. For a paper roll placed at a distance of about 2 m, the diameter from 600 mm to 1100 mm was estimated with the accuracy better than 2 percent. A more compact version of the sensor was manufactured and tested for metal surface orientation measurements in surface treatment robot application. The sensor was placed in the robot end effector to perform angle measurements and surface profile determination for obstacle detection and collision avoidance. The cases presented show that the customer-design approach based on geometrical modeling of the sensor sensitive volume is a good solution for designing the sensor according to specific application needs.

Citation Download Citation

Janusz A. Marszalec "Customer-design approach in development of LED array-based range-imaging sensors: applications case studies", Proc. SPIE 3101, New Image Processing Techniques and Applications: Algorithms, Methods, and Components II, (19 August 1997); https://doi.org/10.1117/12.281288

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KEYWORDS

Sensors

Light emitting diodes

Receivers

Transmitters

Image sensors

Range imaging

Electronics

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