14 NED
XCM
4085TLCT6
UME-0062-01
2.3 Optical Interface
Nikon F mount is provided as standard.
Notes:
1) The amount and wavelengths of light required to capture useful images depend
on the intended use. Factors include the physical properties, speed, the object
’s
spectral characteristics, exposure time, the light source characteristics, the
specifications of the acquisition system and so on.
The exposure amount (exposure time x light amount) is the most important factor
in getting desirable images. Please determine the exposure amount after studying
what is most important to your system.
2) Keep these guidelines in mind when setting up your light source:
LED light sources are relatively inexpensive, provide a uniform field and longer life span
compared to other light sources. However, they also require a camera with excellent
sensitivity.
Halogen light sources generally provide very little blue light but have high infrared light
(IR) proportions.
Fiber-optic light distribution systems generally transmit very little blue light relative to IR.
Metal halide light sources are very bright but have a shorter life span compared to other
light sources.
3) Generally speaking, the brighter the light sources, the shorter the life span.
CMOS image sensors are sensitive to infrared (IR). We recommend using
daylight colour fluorescent lamps that have low IR emissions. If you use a halogen
light source, to prevent infrared from distorting the images use an IR cutoff filter
that does not transmit wavelengths.
