OPTICAL DETECTION DEVICE AND ELECTRONIC EQUIPMENT
First Claim
1. An optical detection device comprising:
- a light emitting element;
an irradiation optical system for applying a bundle of emission rays emitted from the light emitting element to an object to be measured;
a reflected light optical system for condensing reflected light from the object to be measured;
a light receiving element for detecting reflected light from the object to be measured condensed by the reflected light optical system; and
a signal processing section for processing a light-reception signal from the light receiving element, whereinthe light receiving element is a line sensor or area sensor for detecting an intensity distribution of reflected light from the object to be measured, andgiven a z-axis that is an optical axis of a bundle of emission rays emitted from the light emitting element, an x-axis that is a straight line perpendicular to the z-axis and extending along a line direction interconnecting the light emitting element and the light receiving element, a y-axis that is a straight line passing through an intersection point of the z-axis and the x-axis and perpendicular to the z-axis and the x-axis, and given an x-y coordinate plane that is a plane containing the x-axis and the y-axis, then the signal processing section detects at least one of an x-coordinate and a y-coordinate of the object to be measured on the x-y coordinate plane from at least one of a light-spot position on the light receiving element or a light-spot shape on the light receiving element based on the light-reception signal received from the light receiving element.
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Accused Products
Abstract
An optical detection device includes a light emitting element, which is an area sensor, a light emitting lens part for irradiating an object to be measured with a bundle of emission rays emitted from the light emitting element, a light receiving lens part for condensing reflected light from the object, a light receiving element for detecting reflected light from the object condensed by the light receiving lens part, and a signal processing section for processing a light-reception signal from the light receiving element. Based on the light-reception signal from the light receiving element, the signal processing section detects at least one of an x-coordinate or a y-coordinate of the object on an x-y coordinate plane from at least one of a light-spot position or a light-spot shape on the light receiving element.
25 Citations
13 Claims
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1. An optical detection device comprising:
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a light emitting element; an irradiation optical system for applying a bundle of emission rays emitted from the light emitting element to an object to be measured; a reflected light optical system for condensing reflected light from the object to be measured; a light receiving element for detecting reflected light from the object to be measured condensed by the reflected light optical system; and a signal processing section for processing a light-reception signal from the light receiving element, wherein the light receiving element is a line sensor or area sensor for detecting an intensity distribution of reflected light from the object to be measured, and given a z-axis that is an optical axis of a bundle of emission rays emitted from the light emitting element, an x-axis that is a straight line perpendicular to the z-axis and extending along a line direction interconnecting the light emitting element and the light receiving element, a y-axis that is a straight line passing through an intersection point of the z-axis and the x-axis and perpendicular to the z-axis and the x-axis, and given an x-y coordinate plane that is a plane containing the x-axis and the y-axis, then the signal processing section detects at least one of an x-coordinate and a y-coordinate of the object to be measured on the x-y coordinate plane from at least one of a light-spot position on the light receiving element or a light-spot shape on the light receiving element based on the light-reception signal received from the light receiving element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. Electronic equipment comprising:
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an optical detection device arranged and configured to emit light to an object to be measured to detect at least one of positional information and moving information of the object to be measured based on reflected light from the object to be measured; and a control unit arranged and configured to control an operating state of the electronic equipment based on the at least one of the positional information and the moving information of the object to be measured detected by the optical detection device. - View Dependent Claims (10, 11, 12)
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13. Electronic equipment comprising:
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an optical detection device arranged and configured to detect, with use of an area sensor or a line sensor, a light-spot image formed by irradiation of a bundle of emission rays emitted from a light emitting element onto an object to be measured, detect positional information of the object to be measured from the light-spot image, and compute moving information of the object to be measured from a difference in the positional information between start and end of a specified time duration; and a control unit arranged and configured to control an operating state of the electronic equipment by the moving information of the object to be measured detected by the optical detection device.
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Specification