Infrared Cut-Off Filters; Figure 1.13: Ir Filter Transmittance Graph - Point Grey Flea3 FL3-U3 Technical Reference Manual

Point Grey Flea3 USB 3.0 Technical Reference
1.3.7

Infrared Cut-Off Filters

Point Grey color camera models are equipped with an additional infrared (IR) cut-off filter. This filter can reduce
sensitivity in the near infrared spectrum and help prevent smearing. The properties of this filter are illustrated in the
results below.
In monochrome models, the IR filter is replaced with a transparent piece of glass.
The following are the properties of the IR filter/protective glass:
For more information, see
Related Knowledge Base Articles
Removing the IR filter from a color camera
Revised 9/27/2012
Copyright ©2011-2012 Point Grey Research Inc.

Figure 1.13: IR filter transmittance graph

Type
Material
Physical Filter Size
Glass Thickness
Dimensional Tolerance +/-0.1 mm
Coating Filters
Dust Protection on previous
Title
Knowledge Base Article 215
Reflective
Schott D 263 T
14 mm x 14 mm
1.0 mm
Scott D 263 T
page.
Article
1 Welcome to Flea3 USB 3.0
17