VIRTUAL DETECTOR FOR SENSOR SYSTEM
First Claim
1. A proximity and light sensing apparatus comprising:
- a light emitting compartment having a light emitter for proximity sensing positioned on a substrate and an optical element positioned along a side of the light emitter opposite the substrate;
a light receiving compartment having a light detector positioned on the substrate and an optical element positioned along a side of the light detector opposite the substrate;
a mid wall extending in a direction substantially normal to the substrate, the mid wall positioned between the light emitting compartment and the light receiving compartment; and
a reflective element positioned at a side of the mid wall facing the light receiving compartment, the reflective element capable of reflecting an off-axis light beam onto the light detector so as to form a real image on the light detector of an otherwise virtual image formed behind the reflector.
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Accused Products
Abstract
A proximity and light sensing device including a light emitting compartment having a light emitter positioned on a substrate and an optical element positioned along a side of the light emitter opposite the substrate. The device further including a light receiving compartment including a light detector positioned on the substrate and an optical element positioned along a side of the light detector opposite the substrate. A mid wall extends in a direction substantially normal to the substrate and is positioned between the light emitting compartment and the light receiving compartment. The device further includes a reflective element positioned at a side of the mid wall facing the light receiving compartment, the reflective element capable of reflecting an off-axis light beam onto the light detector so as to form a real image on the light detector of an otherwise virtual image formed behind the reflector. Other embodiments are also described.
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Citations
20 Claims
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1. A proximity and light sensing apparatus comprising:
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a light emitting compartment having a light emitter for proximity sensing positioned on a substrate and an optical element positioned along a side of the light emitter opposite the substrate; a light receiving compartment having a light detector positioned on the substrate and an optical element positioned along a side of the light detector opposite the substrate; a mid wall extending in a direction substantially normal to the substrate, the mid wall positioned between the light emitting compartment and the light receiving compartment; and a reflective element positioned at a side of the mid wall facing the light receiving compartment, the reflective element capable of reflecting an off-axis light beam onto the light detector so as to form a real image on the light detector of an otherwise virtual image formed behind the reflector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A proximity and light sensing apparatus comprising:
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a light emitter positioned on a substrate; a light detector positioned on the substrate, the light detector configured to detect light beams from the light emitter and a source other than the emitter; and a reflector positioned between the light emitter and the light detector, the reflector having a substantially planar reflective surface which is substantially normal to the substrate surface and facing the detector, the reflective surface capable of specular reflection of off-axis light beams toward the light detector. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A proximity and light sensing apparatus comprising:
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a light detecting device comprising a light detector and an optical element configured to define a first viewing angle and transmit incoming light beams within the first viewing angle to the light detector; and a substantially planar reflector positioned between the light detector and the optical element, the substantially planar reflector to define a second viewing angle which is wider than the first viewing angle and reflect incoming light beams outside of the first viewing angle onto the light detector. - View Dependent Claims (17, 18, 19, 20)
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Specification