D-LAS Series - Laser Digital Light Barriers - Sensor Instruments - #1

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D-LAS Series • Laser Digital Light Barriers Product Information info@sensorinstruments.de • www.sensorinstruments.de (2001-07-19) D-LAS Series / Page 1 of 4 Sensor Instruments GmbH • D-94169 Thurmansbang • Schlinding 11 Tel. +49 (0)8544 9719-0 • Fax +49 (0)8544 9719-13 Characteristics D-LAS Series Laser Digital Light Barriers The laser digital light barriers of D-LAS Series work with visible parallel laser light. The use of round or rectangular apertures ensures a homogeneous light distribution in the laser beam. Smallest objects are detected even in case of a large transmitter/receiver distance. Dynamic correction of the switching threshold compensates the effect of dirt accumulation (with D-LAS1, D-LAS2, D-LAS34, D-LAS-34/90). These light barriers are ideal for positioning tasks. Collimated laser beam The laser light beam that is emitted by a high-precision optics unit (aspherical surface made of glass) allowes the detection of smallest objects (e.g. threads) even in case of a large transmitter/receiver distrance (distances up to 100 m, depending on the light barrier type and aperture size). Advantages: - Telecentrical design - Exact shadow projection onto the receiver - The distance of measuring object to the transmitter or receiver has no influence on the measuring signal over a wide range Homogeneous light distribution The use of high-precision apertures in the transmitter ensures optimum adaptation to the respecitve application. Apart from a large variety of standard apertures special apertures can also be realized. The aperture ensures a homogeneous light distribution in the beam and a sharp beam limitation. Light barriers Conventional of D-LAS Series light barrier Conventional design: Beam profile in the two main axes D-LAS series: Beam profile in the two main axes X di r ect ion opt . out put Y di r ect ion opt . out put X di r ect ion opt . out put Y di r ect ion opt . out put