Performance tests of an angular scan LED array-based range-imaging sensor

Janusz A. Marszalec; Risto A. Myllylae

doi:10.1117/12.168079

1 February 1993 Performance tests of an angular scan LED array-based range-imaging sensor

Janusz A. Marszalec, Risto A. Myllylae

Proceedings Volume 2088, Laser Dimensional Metrology: Recent Advances for Industrial Application; (1993) https://doi.org/10.1117/12.168079
Event: Laser Dimensional Metrology: Recent Advances for Industrial Application, 1993, Brighton, United Kingdom

Abstract

In the paper a new angular scan triangulation range scanner is described using an integrated array of LED chips and a lateral-effect position-sensing detector. A range map is obtained by means of fast electronic scanning of the chips of an integrated LED array. One LED of the array operates at a time and a certain on-off switching sequence is applied. In the paper the operation principle of the scanner is presented and a design of the sensor prototype using a linear array of 32 LEDs is reported. Experimental tests for evaluation of the sensor performance are described, including range accuracy, precision, time of range image acquisition, and geometrical properties of the sensitive volume of the sensor. Range measurement tests for targets located at different angles in relation to the sensor and profile measurements of cylindrical objects are also reported.

Citation Download Citation

Janusz A. Marszalec and Risto A. Myllylae "Performance tests of an angular scan LED array-based range-imaging sensor", Proc. SPIE 2088, Laser Dimensional Metrology: Recent Advances for Industrial Application, (1 February 1993); https://doi.org/10.1117/12.168079

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