Object detecting apparatus
First Claim
1. An object detecting apparatus comprising:
- a light projector that includesan array light source in which each of a plurality of light emission areas emits light; and
a coupling lens that couples light emitted from the light emission areas;
an optical scanner that performs scanning with the light, which is emitted from the light projector, in a first direction;
a light receiver that includes a photodetector and an imaging forming lens and receives reflected light, with which scanning is performed, being reflected by an object, the coupling lens being arranged at a position which is away from the array light source by a distance corresponding to a focal length of the coupling lens when seen from the array light source, the photodetector being arranged at a position farther than a focal length of the imaging forming lens when seen from the imaging forming lens; and
a processor to detect a presence/absence of the object based on emission timing at which the light is emitted from the light projector and light receiving timing at which the light receiver receives the reflected light.
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Accused Products
Abstract
An object detecting apparatus includes: a light projection unit that is an array light source in which each of a plurality of light emission areas emits light, an optical scanning unit that performs scanning with the light, which is emitted from the light projection unit, in a first direction, and a light receiving unit that receives reflected light which is the light, with which the scanning is performed, being reflected by an object, and an object information acquiring unit that detects presence/absence of the object based on emission timing at which the light is emitted from the light projection unit and light receiving timing at which the light receiving unit receives the reflected light.
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Citations
17 Claims
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1. An object detecting apparatus comprising:
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a light projector that includes an array light source in which each of a plurality of light emission areas emits light; and a coupling lens that couples light emitted from the light emission areas; an optical scanner that performs scanning with the light, which is emitted from the light projector, in a first direction; a light receiver that includes a photodetector and an imaging forming lens and receives reflected light, with which scanning is performed, being reflected by an object, the coupling lens being arranged at a position which is away from the array light source by a distance corresponding to a focal length of the coupling lens when seen from the array light source, the photodetector being arranged at a position farther than a focal length of the imaging forming lens when seen from the imaging forming lens; and a processor to detect a presence/absence of the object based on emission timing at which the light is emitted from the light projector and light receiving timing at which the light receiver receives the reflected light. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An object detecting apparatus comprising:
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a light projector that includes an array light source in which each of a plurality of light emission areas emits light; and a coupling lens that couples light emitted from the light emission areas; an optical scanner that performs scanning with the light, which is emitted from the light projector, in a first direction; a light receiver that includes a photodetector and an imaging forming lens and receives reflected light, with which scanning is performed, being reflected by an object, the coupling lens being arranged at a position farther than a focal length of the coupling lens when seen from the array light source, the photodetector being arranged at a position which is away from the imaging forming lens by a distance corresponding to the focal length of the imaging forming lens when seen from the imaging forming lens; and a processor to detect a presence/absence of the object based on emission timing at which the light is emitted from the light projector and light receiving timing at which the light receiver receives the reflected light. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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Specification