| 摘要 |
Systems and methods use infrared ("IR") wavelengths to assist in cosmetic determination of hair and skin color. Preferred embodiments include a light collector that has significant sensitivity to light waves having a wavelength above 700 nm, and in various contemplated embodiments the light collector has significant sensitivity to light waves above 750, 800, 850 nm, 900 nm, 1000 nm and/or 1100 nm.
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