NED
XCM40170DLMT2CXP
UME-0064-01
16
2.3 Optical Interface
The XCM40170DLMT2CXP comes with an F-Mount as standard.
1) Quantities of light and the wavelength etc. of a source of light necessary to take
the image for which the customer hopes are different according to the usage. The
factor to decide these contains physical properties, the speed, the spectrum
characteristic of the object taken a picture of, the exposure time, and the
characteristic of the source of light and the specification etc. of the taking system.
It is a luminous exposure (exposure time × quantities of light) that it is important
because an appropriate image is obtained. Please decide the exposure time and
quantities of light after examining which element the customer values enough.
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 light sources, the shorter life span.
CMOS image sensors are sensitive to infrared (IR). We recommend using
daylight color fluorescent lamps that have low IR emissions. If you use a halogen
light source, to prevent infrared from distorting the images use an IR cut off filter
that does not transmit wavelengths.
