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Fixed Athermalized IR Lens 20mm f/1.1

Home / Products / LWIR Lens | Infrared Optics / Fixed Athermalized LWIR Lens (1-FOV) /

Fixed Athermalized IR Lens 20mm f/1.1

Fixed Athermalized IR Lens 20mm f/1.1

Fixed Athermalized IR Lens 20mm f/1.1
Fixed Athermalized IR Lens 20mm f/1.1Fixed Athermalized IR Lens 20mm f/1.1
CategoriesFixed Athermalized LWIR Lens (1-FOV)
BrandQuanhom Customized Infrared Optics & Infrared Lens
ModelGLA2011ZA
LWIR Lens20mm f/1.1
ApplicationsSecurity and Surveillance
Mechanical InterfaceThread
Update Time2021-10-21
Detail Information
  • Specifications
  • Download file
  • FAQ
  • Video
  • Applications
Specifications
HFOV
160x120
320x240
336x256
384x288
640x480
640x512
1024x768
1280x1024
25μm
11.4°
22.6°
23.7°
27.0°
/
/
/
/
17μm
7.8°
15.5°
16.3°
18.5°
30.4°
30.4°
/
/
12μm
5.5°
11.0°
11.5°
13.1°
21.7°
21.7°
/
/

Optical

Focal Length[mm]
20
F/#
1.1
Average Transmittance
≥90%
Detector
640x512,17μm
Wavelength
8-12μm
BWD(Back Work Distance)
9.44mm

Mechanical

Interface
Thread
Focus Mechanism
Fixed Athermalized
Dimensions [mm]
Φ29x25

Environmental

Operating Temperature
-40℃ to +80
External Coating
AR
Sealing
IP67
Download document
FAQ
- Why the lens autofocus is not clear?

There are many reasons why the lens autofocus is not clear, the main reasons are as follows which can be checked one by one:

1. During the focusing process, there is a large moving target in the lens screen (occupying more than 1/3 of the picture), can be refocused;

2.If the lens is used for a long time, the gear, CAM and other transmission parts wear and tear, resulting in unclear focus, the module or control board parameters can be adjusted to make the focus clear again;

3. Hardware problems, such as potentiometer does not work, replace the hardware that does not work.

- Why can not the lens control board or module connect to the computer?

There are many reasons why the lens control board and the computer cannot be connected, the main reasons are as follows which can be checked one by one:

1. Replace the USB port, which may be incompatible with the data cable;

2.Replace the data cable,maybe the data cable is not compatible with the computer or the cable data is wrongly selected;

3. Confirm the wiring of the module or the control board, maybe the wiring is loose;

4.Module or control board hardware problem, replace the hardware.

VIDEO
APPLICATIONS
Airborne
Hand-held Thermal Imaging Devices
Homeland Security
Maritime & Naval
Security & Surveillance

Review
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