Light-based shielding detection
First Claim
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1. A sunscreen detector, comprising:
- an illumination system configured to emit UV light, included in a UV illumination field, and IR light, included in an IR illumination field;
a sensor system, the sensor system configured to;
detect at least a portion of the UV light and the IR light at a sensor field located within the UV illumination field and the IR illumination field,generate a UV signal associated with the detected UV light, andgenerate an IR signal associated with the detected IR light; and
a controller configured to;
receive the UV signal and the IR signal from the sensor system,compare the UV signal to a UV threshold,compare the IR signal to an IR threshold, andoutput a first output signal when the IR signal is above the IR threshold and the UV signal is below the UV threshold.
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Abstract
Disclosed herein is a sunscreen detector for use with portable device, such as a mobile and/or wearable device. One variation of a sunscreen detector comprises an illumination system that is configured to illuminate a target skin area with ultraviolet and/or infrared spectrum light and a sensor system that is configured to detect the amount of ultraviolet and/or infrared spectrum light that is reflected from the target skin area. The sunscreen detector is configured to analyze the data collected by the sensor system to generate a notification to the user as to whether they should apply sunscreen.
31 Citations
20 Claims
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1. A sunscreen detector, comprising:
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an illumination system configured to emit UV light, included in a UV illumination field, and IR light, included in an IR illumination field; a sensor system, the sensor system configured to; detect at least a portion of the UV light and the IR light at a sensor field located within the UV illumination field and the IR illumination field, generate a UV signal associated with the detected UV light, and generate an IR signal associated with the detected IR light; and a controller configured to; receive the UV signal and the IR signal from the sensor system, compare the UV signal to a UV threshold, compare the IR signal to an IR threshold, and output a first output signal when the IR signal is above the IR threshold and the UV signal is below the UV threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for detecting sunscreen coverage, comprising:
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positioning a detector over a target skin region; moving the detector across the target skin region; emitting UV light and IR light; detecting at least a portion of the emitted UV light and the emitted IR light at a sensor field located within a UV illumination field and an IR illumination field; generating a UV signal indicative of the detected UV light; generating an IR signal indicative of the detected IR light; receiving the UV signal and the IR signal from the sensor system; comparing the IR signal to an IR threshold value; comparing the UV signal to a UV threshold value; outputting an output signal based on the comparisons; and generating an alert based on the output signal. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification