Optical device components
First Claim
1. An apparatus, comprising:
- a light source to generate a plurality of light beams, each of the plurality of light beams having a different wavelength range;
a light funnel, of frusto-conical shape, to collect the plurality of light beams through an entrance opening having a first diameter and to direct the plurality of light beams to a target area through an exit opening having a second diameter, wherein the second diameter is less than the first diameter;
an aperture to direct the plurality of light beams emitting from the target area;
a lens configured to collect the plurality of light beams directed from the aperture;
a detector comprising a plurality of light-sensing devices each configured to detect a light beam passing through the lens and configured to generate an output signal indicative of an intensity of light detected; and
a processor for determining a blood characteristic as a function of each generated output signal.
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Accused Products
Abstract
Embodiments of the invention relate to an apparatus including a light source to generate a plurality of light beams with each of the plurality of light beams having a different wavelength range. The apparatus also includes a light funnel to direct the plurality of light beams to the target area, an aperture to direct the plurality of light beams emitting from the target area to a lens, the lens configured to collect the light beams emitting from the target area. Further, the apparatus includes a detector including a plurality of light-sensing devices each configured to detect a light beam and configured to generate an output signal indicative of an intensity of light detected and a processor for determining the blood characteristic as a function of each generated output signal.
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Citations
15 Claims
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1. An apparatus, comprising:
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a light source to generate a plurality of light beams, each of the plurality of light beams having a different wavelength range; a light funnel, of frusto-conical shape, to collect the plurality of light beams through an entrance opening having a first diameter and to direct the plurality of light beams to a target area through an exit opening having a second diameter, wherein the second diameter is less than the first diameter; an aperture to direct the plurality of light beams emitting from the target area; a lens configured to collect the plurality of light beams directed from the aperture; a detector comprising a plurality of light-sensing devices each configured to detect a light beam passing through the lens and configured to generate an output signal indicative of an intensity of light detected; and a processor for determining a blood characteristic as a function of each generated output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus, comprising:
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a light source to generate a plurality of light beams, each of the plurality of light beams having a different wavelength range; a light funnel, of frusto-conical shape, to collect the plurality of light beams through an entrance opening having a first diameter and to direct the plurality of light beams to a target area through an exit opening having a second diameter, wherein the second diameter is less than the first diameter; an aperture to direct the plurality of light beams emitting from the target area; a lens to collect the plurality of light beams directed from the aperture; one or more detectors each configured to detect a light beam passing through the lens and configured to generate an output signal indicative of an intensity of light detected; one or more filters positioned between the lens and the detector; and a processor for determining a blood characteristic as a function of each generated output signal. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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Specification