User interface for white goods and associated multi-channel proximity sensors
First Claim
Patent Images
1. A touch sensor comprising:
- a housing;
a light guide mounted in said housing comprising;
an outer surface through which light exits and enters said housing; and
three reflective or refractive inner surfaces;
two light emitters mounted in said housing in such a way that light beams emitted by the two light emitters into said light guide are re-directed by two of said inner surfaces and exit said outer surface; and
a light receiver mounted in said housing in such a way as to receive the light beams exiting said outer surface that are reflected back into said light guide by an object outside said light guide and further re-directed by the third of said inner surfaces, the light receiver outputting a signal indicative of light beams that it receives.
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Abstract
A touch sensor including a housing, a light guide mounted in the housing the light guide featuring an aperture through which light exits and enters the light guide, and an inner surface facing the interior of the housing, the sensor further includes two light emitters mounted in the housing for emitting light beams into the light guide that exit the aperture at diverging angles and a light receiver mounted in the housing for receiving reflected light beams entering the aperture at an angle of incidence different than the diverging angles.
36 Citations
21 Claims
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1. A touch sensor comprising:
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a housing; a light guide mounted in said housing comprising; an outer surface through which light exits and enters said housing; and three reflective or refractive inner surfaces; two light emitters mounted in said housing in such a way that light beams emitted by the two light emitters into said light guide are re-directed by two of said inner surfaces and exit said outer surface; and a light receiver mounted in said housing in such a way as to receive the light beams exiting said outer surface that are reflected back into said light guide by an object outside said light guide and further re-directed by the third of said inner surfaces, the light receiver outputting a signal indicative of light beams that it receives. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A touch sensor comprising:
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a housing; a light guide mounted in said housing comprising; an outer surface through which light exits and enters said housing; and three reflective or refractive inner surfaces; a light emitter mounted in said housing in such a way that light beams emitted by the light emitter into said light guide are re-directed by a first of said inner surfaces and exit said outer surface; and two light receivers mounted in said housing in such a way as to receive the light beams exiting said outer surface that are reflected back by an object outside said light guide and further re-directed by the second and third of said inner surfaces, the light receivers outputting signals indicative of light beams that they receive. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An appliance comprising:
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a touch sensitive panel on which are displayed a plurality of icons representing different appliance settings, and comprising a demarcated area separate from the displayed icons; and a processor connected with said panel, operative to select an icon'"'"'s appliance setting in response to detecting a finger gliding from that icon into said demarcated area. - View Dependent Claims (19, 20, 21)
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Specification