Filter Glasses - IDS uEye series User Manual

User Manual uEye Cameras V3.32
9.2.7

Filter Glasses

Filter Types
Every uEye 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
uEye model name.
The following table shows an overview of the different optical filters used in the uEye cameras:
Filter type
IR cut
filter (old)
IRcut filter
(new)
Daylight
cut filter
Glass
182
Refractive index
(n
Name
Filter
BG 1,53
HQ 1,53
DL 1,53
GL 1,53
You can tell the filter type from the outside by its coloration:
· Reddish glass: HQ filter
· Bluish glass: BG filter
· Opaque glass: DL filter
· Plain glass: GL filter
New uEye color cameras use an IR cut filter of the type HQ by default. This filter offers an
improved accuracy of the infrared content. HQ filters achieve a higher image brightness
and better color rendering.
uEye drivers of version V3.24 and higher determine automatically which the IR filter is used
in a camera. The corresponding color correction is selected automatically.
Glass Thicknes
)
type s (f)
BG40 1 mm
D263 1 mm
RG665 1 mm
D263 1 mm
© 2009 IDS Imaging Development Systems GmbH
Cut-off frequency Non-reflective
650 nm
650 nm On one side
665 nm
380 nm On both sides
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