THORLABS DCU22 Series Description And Sdk Manual

© 2016 Thorlabs Scientific Imaging
5 Specifications
463
resulting in a total error > 0.05 mm.
5.4.7 Filter Glasses
Filter types
Mounting the filter
Cleaning the filter glasses
5.4.7.1 Filter Types
Each DCx 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 following table shows an overview of the different optical filters used in the DCx Cameras:
Filter type
Name
Refractive index
(n
Filter
)
Glass type
Thickness (f)
Cut-off
wavelength
Non-
reflective
IR cut filter
(old)
BG
1.53
BG40
1 mm
650 nm
-
IRcut filter
(new)
HQ
1.53
D263
1 mm
650 nm
On one
side
Daylight cut
filter
DL
1.53
RG665
1 mm
695 nm
-
Glass
GL
1.53
D263
1 mm
380 nm
On both
sides

THORLABS DCU22 Series Specifications

General

Brand	THORLABS
Model	DCU22 Series
Category	Security Camera
Language	English