Sun exposure monitoring device

Details Sun exposure monitoring device Sun exposure monitoring device

G - Physics

01

J

G01J 1/58 (2006.01)

Patent

CA 2047734

2047734 9010201 PCTABS00002 A sun exposure monitoring device has a sensing sheet (8) mounted in a housing (2) to receive incident sunlight through an UV pass filter (4). The sheet (8) contains a dye (10) which luminesces in response to the incident light in a wavelength range within the UV range, and emits light within the sheet at longer wavelengths. The emitted light is internally reflected in the sheet and emerges at the edge of the sheet. A sensor (18) is disposed to receive such light emerging from a portion of the sheet edge and generate signals in response thereto. Computing means is coupled to the sensor to determine from these signals the power of incident UV light on the sensing sheet (8) in the selected wavelength range.

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