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AssigneeKoninklijke Philips Electronics N.V.
InventorsLouis Cobben, Bernardus Hendrikus Hendriks, Stein Kuiper, Winslow Mimnagh
Estimating the term…
An optical input and/or control de and/or actuating variable functions of, for examp device, the optical input and/or control device ha radiation from a diode laser (3) is converged. As across the window (12), part of the scattered radi due to the movement of the finger (15), re-enters measured using the self-mixing effect of the lase radiation emitted by the laser (3) and re-entering of the laser and thus in the radiation emitted by photo-diode (4) which converts the radiation vari circuitry is provided which processes this signal. ice for manually selectively controlling e, an image capture device or a computer mg a transparent window (12) on which an object, e.g. a user's finger (15), moves tion, whose frequency is Doppler-shifted the laser cavity. Relative movement is diode (3), which is the phenomenon that e laser cavity induces a variation in gain e laser (3). The change can be detected by a tion into an electric signal and electronic
An image capture device comprising one or more variable optical functions, and wherein said variable optical functions are selectively actuated and/or controlled by an optical input and/or control device in the form of a relative movement sensor for measuring movement of an object (15) and said sensor relative to each other along at least one measuring axis, the sensor comprising at least one laser (3), having a laser cavity, for generating a measuring beam (13) and illuminating an object (15) therewith, wherein at least some of the measuring beam radiation reflected by said object re-enters said laser cavity, the apparatus further comprising measuring means (4) for measuring changes in operation of said laser cavity caused by interfence of reflected measuring beam radiation re-entering said laser cavity and the optical wave in said laser cavity, and means for providing an electric signal representative of said changes, wherein said variable optical functions are selectively actuated and/or controlled by movement of said object (15) and said sensor relative to each other.
An optical input and/or control device comprising one or more optical actuation means for selecting one or more functions using said optical input device, the or each actuation means comprising a relative movement sensor for measuring movement of a user's finger (15) and said sensor relative to each other along at least one measuring axis, the sensor comprising at least one laser (3), having a laser cavity, for generating a measuring beam (13) and illuminating said user's finger (15) therewith, wherein at least some of the measuring beam radiation reflected by said object re-enters said laser cavity, the apparatus further comprising measuring means (4) for measuring changes in operation of said laser cavity caused by interference of reflected measuring beam radiation re-entering said laser cavity and the optical wave in said laser cavity, means for providing an electric signal representative of said changes, the or each optical actuation means actuatable being operable by movement of said user's finger (15) relative to said relative movement sensor in a manner which simulates actuation of an analogous mechanical actuation means.
Dependencies are inferred from the claim text.