Specifications
Page 27
Prosilica GB Technical Manual V2.2.6
Absolute QE plots
Spectral response plots
Important notice before reading the QE plots
All measurements were done without protection glass or IR cut filter. With
protection glass or filters, QE decreases by approximately 10 percent.
The uncertainty in measurement of the QE values is
10 percent. This is mainly
due to uncertainties in the measuring apparatus itself (Ulbricht sphere,
optometer). Manufacturing tolerance of the sensor increases overall uncertainty.
Absolute QE plots for Sony CCD sensors
Sony provides relative response curves in their sensor data sheets. To create the
absolute QE plots shown in this chapter, the relative response was converted to a
normalized QE response and adjusted using three measured QE values (at 448 nm,
529 nm, 632 nm) for color sensors and one measured QE value (at 529 nm) for
monochrome sensors.
Wavelength
The wavelength range in the absolute QE plots reflects the information available in
the sensor manufacturer data sheet at the time of publishing. Many color sensors
are documented by the sensor manufacturer only for wavelengths from 400 nm to
700 nm.
For additional wavelength information, contact the sensor manufacturer.
Sony provides relative response curves in their sensor data sheets. To create the
spectral response plots shown in this chapter, the relative response was adjusted
using three measured QE values (at 448 nm, 529 nm, 632 nm) for color sensors
and one measured QE value (at 529 nm) for monochrome sensors.
The uncertainty in measurement of the spectral response values is
10 percent.
