Dalsa Falcon 4-CLHS Series User Manual

110  Additional Reference Information Falcon™ 4-CLHS Series
Optical Considerations
This section provides an overview to illumination, light sources, filters, lens modeling, and lens
magnification. Each of these components contribute to the successful design of an imaging
solution.
Illumination
The wavelengths and intensity of light required to capture useful images vary per application. The
image will be affected by speed, spectral characteristics, exposure time, light source
characteristics, environmental and acquisition system specifics, etc. Look at Teledyne DALSA’s
Knowledge Center for articles on this potentially complicated issue.
Exposure settings have more effect than illumination. The total amount of energy (which is related
to the total number of photons reaching the sensor) is more important than the rate at which it
arrives.
Example: 5 J/cm
2
can be achieved by exposing 5 mW/cm
2
for 1 ms or exposing 5 W/cm
2
for
1 s.
Light Sources
Keep these guidelines in mind when selecting and setting up a light source:
 LED light sources are inexpensive and provide a uniform field with a longer life span compared
to other light sources.
 Halogen and fiber-optic light sources provide very little blue relative to IR.
 Some light sources age and produce less illumination in some areas of the spectrum.

Dalsa Falcon 4-CLHS Series Specifications

General

Brand	Dalsa
Model	Falcon 4-CLHS Series
Category	Digital Camera
Language	English