Method of measuring the movement of an input device
作者： Carsten Heinks , Aldegonda Lucia Weijers , Martin Dieter Liess , Arnoldus Johannes Martinus Joseph Ras
DOI:
关键词: Laser 、 Physics 、 Radiation 、 Optical cavity 、 Photodiode 、 Input device 、 Optics 、 Movement (music) 、 Diode 、 Doppler effect
摘要: An optical input device for an apparatus, generating signals by moving the and object (15) relative to each other measuring movement means of effects self-mixing in a diode laser (3,5) Doppler shift caused movement. For axis (X,Y,Z) radiation from is converged on window (12) across which moves Part scattered object, whose frequency Doppler-shifted due movement, re-enters cavity (20) causes change properties. By such change, example photo diode, information about obtained. As small cheap, it can be used number different consumer apparatus.
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