Light unit for counting sea lice
AssigneePhilips Lighting Holding B.V.
InventorsCRISTINA TANASE, CORNELIS TEUNISSEN
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Abstract
The present disclosure proposes an improved apparatus and method for counting of sea lice by providing a stable and controlled light environment which ensures counting of sea lice reliably and independent of weather conditions and an optimized spectral power distribution and intensity of the light for improved observation (detectability) of sea lice with respect to fish skin. An embodiment of the disclosed light system comprises multiple LEDs, at least two LEDs providing a light colour with peaks in the range 490-540 nm (Cyan/Green) respectively 620-660 nm (Red).
Claims16
An apparatus for counting sea lice, comprising at least one light source for providing a light output with a spectral power distribution for observation of sea lice on fish skin, where said spectral power distribution is characterized within the visible wavelength range from 380 nm to 780 nm by at least two dominant wavelength peaks, a first dominant wavelength peak in the range of 490-540 nm and a second dominant wavelength peak in the range of 620-660 nm,
- wherein the apparatus further comprises a sensor for measuring an environmental light condition and a processor for adapting an intensity and/or a colour balance of the light output of the light source to the measured environmental light condition for increasing visual contrast when counting sea lice.
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A method of counting sea lice on skin of fish sample comprising the steps of:
- providing a fish sample;
- illuminating the fish sample using an apparatus according to any the preceding claims;
- and
- counting the sea lice on skin of the fish sample.
Dependencies are inferred from the claim text.