Filter Glasses; Filter Types - IDS GigE uEye FA Technical Manual

10 Filter glasses

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Filter types

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Cleaning the filter glasses
10.1 Filter types
Every camera has a filter glass in the front flange to prevent the entry of dust particles. Color cameras by
default use an IR cut filter, which is required to ensure correct color rendering. The default filter glass in
monochrome cameras has no filter effect. Every camera model is available with different filter variants such as
daylight cut filters (type DL). The filter type is given at the end of the model name.
The following table shows an overview of the different optical filters used in IDS cameras:
Filter type Name
IR cut filter HQ
Glass
GL
Daylight cut
DL
filter
You can tell the filter type from the outside by its coloration:
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Reddish glass: HQ filter
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Plain glass: GL filter
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Opaque glass: DL filter
All sensors have a D263 type cover glass. This glass is opaque to wavelengths below 330 nm.
Infrared cut filter (type HQ)
Fig. 14: HQ filter
January 2020
Refractive
index
(n )
Glass type
Filter
1.53 D263
1.53 D263T
1.53 RG695
Technical Manual: GigE uEye FA
Thickness Cut-on
(f) wavelength
1 mm -
1 mm 330 nm
1 mm 695 nm
Cut-off Non-
wavelength reflective
650 ±10 nm On one side
On both
-
sides
- -
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