Spatial input device
First Claim
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1. A spatial input device comprising:
- a light beam scanner that emits light beams toward a spatially projected image while two-dimensionally scanning the light beams;
a photodetector that detects the light beams that have been reflected by an input object within a detection range, with the detection range extending inward of the spatial input device relative to the image; and
a controller that counts a scan line number indicative of a number of the light beams that have been detected by the photodetector, and detects a depth position of the input object based on the scan line number using a correlation between the scan line number and the depth position that varies according to a distance between the input object and the photodetector.
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Abstract
A spatial input device includes a light beam scanner, a photodetector, and a controller. The light beam scanner is configured to emit light beams toward a spatially projected image while two-dimensionally scanning the light beams. The photodetector is configured to detect the light beams that have been reflected by an input object within a detection range. The detection range extends inward of the spatial input device relative to the image. The controller is configured to count a scan line number indicative of a number of the light beams that have been detected by the photodetector, and to detect a depth position of the input object based on the scan line number.
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10 Claims
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1. A spatial input device comprising:
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a light beam scanner that emits light beams toward a spatially projected image while two-dimensionally scanning the light beams; a photodetector that detects the light beams that have been reflected by an input object within a detection range, with the detection range extending inward of the spatial input device relative to the image; and a controller that counts a scan line number indicative of a number of the light beams that have been detected by the photodetector, and detects a depth position of the input object based on the scan line number using a correlation between the scan line number and the depth position that varies according to a distance between the input object and the photodetector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification