Optical scanner
AssigneeU.S. Philips Corporation
InventorJohannes J. H. B. Schleipen
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Abstract
The present invention relates to an optical scanner (20) comprising a radiation source (24) for generating a radiation beam, and means (22), (26) for giving the radiation beam a scanning movement in a first direction through an angular range Δθ1 and in a second direction through an angular range Δθ2. The radiation source (24) is, for example a diode laser and is tunable in wavelength, and the means comprise a rotating reflecting element and a grating.
Claims13
An optical scanner comprising a radiation source for generating a radiation beam, and means for giving the radiation beam a scanning movement in a first direction through an angular range Δθ1 and in a second direction through an angular range Δθ2, characterized in that the radiation source is tunable in wavelength, and the means comprise a grating and a rotating reflecting element.
An optical scanner comprising a radiation source for generation a radiation beam, and means for giving tie radiation beam a scanning movement in a first direction through an angular range Δθ1 and in a second direction through an angular range Δθ2, characterized in that the radiation source is tunable in wavelength, and tie means comprise
- a grating and a rotating reflecting element,
- characterized in that the reflecting element and the grating are integrated with each other, and
- further comprising a wavelength tuner coupled to received radiation from the source and tune the radiation from the source to a plurality of wavelengths;
- and
- wherein the grating achieves either the first or second direction of scanning, by interaction with tuned radiation received from the tuner.
Dependencies are inferred from the claim text.