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Date of release: September 2005 Document number: PLS-RGU-05-1061 Philips Laser Sensors Philips Laser Sensors – Technology White Paper Philips Laser Sensors’ twin-eye laser technology and applications Utilizing interferometry techniques normally applied only in high-performance professional applications, Philips Laser Sensors’ twin-eye laser technology leverages the latest developments in solid-state lasers, digital signal processing and System in Package (SiP) technology to achieve unparalleled resolution and accuracy for position/velocity sensing in consumer-product applications. laser & detector len lens Reflecting object Figure 1 – Philips Laser Sensors’ self-mixing laser technology Motion of the target towards or away from the laser source causes a Doppler shift in the frequency of the returning laser light.
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