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The heart of the FINN System is a photosensitive semiconductor
and an optical filter. The optical filter permits only "target colour"
wavelengths from LED-emitted light to reach a specially-designed
sensor. The sensor produces current when excited by the target
light wavelength. The current creates a voltage across the bias
resistor, which is measured by the target test system.


FINN Types
Currently we have FINNS in the following configurations:
•  Vertical  
•  Right Angle  


FINN Views
Click on the images below to see a larger, detailed picture.

 Vertical         Right Angle

FINN Readings
The following table summarizes voltage readings delivered by the FINNs. Typical readings taken at a distance of 0.1 - 0.15 inches from the lens of the LED.

LED colour	Nominal Reading Red FINN	Nominal Reading Green FINN	Nominal Reading Blue FINN
Red	450mV	Less than 50mV	Less than 50mV
Orange	300mV	Less than 50mV	Less than 50mV
Yellow	200mV	200mV	Less than 50mV
Green	Les than 50mV	350mV	Less than 50mV
Blue / White	N/A	N/A	450mV

More Information
To download a PDF document containing these details and more on the FINN, visit the download page. Or view the FINN specifications page.