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Dual-Fov IR Lens 25/90mm f1.0/1.2

Home / All / LWIR Lens | Infrared Optics / Dual FOV Infrared Lens /

Dual-Fov IR Lens 25/90mm f1.0/1.2

Dual-Fov IR Lens 25/90mm f1.0/1.2

Dual-Fov IR Lens 25/90mm f1.0/1.2
CategoriesDual FOV Infrared Lens
BrandQuanhom Optronics
ModelGLD25N90
LWIR Lens25/90mm f1.0/1.2
ApplicationsSecurity and Surveillance
Mechanical InterfaceThread
Update TimeMar 4,2024
Detail Information
  • Specifications
  • Download file
  • FAQ
  • Video
  • Applications
Specifications
HFOV
160x120
320x240
336x256
384x288
640x480
640x512
1024x768
1280x1024
25μm
9.1°/2.5°
18.2°/5.1°
19.1°/5.3°
21.7°/6.1°
/
/
/
/
17μm
6.2°/1.7°
12.4°/3.5°
13°/3.6°
14.9°/4.2°
24.6°/6.9°
24.6°/6.9°
/
/
12μm
4.4°/1.2°
8.8°/2.4°
9.2°/2.6°
10.5°/2.9°
17.5°/4.9°
17.5°/4.9°
/
/

Optical

Focal Length[mm]
25/90(2-FOV)
F/#
1.0/1.2
Wave Length
8-14μm
Focus Range
10m-Infinity

Mechanical

Focus Mechanism
Motorized Dual Vision
Dimensions [mm]
Φ87x114.5
Weight
568±5%g

Environmental

Operating Temperature
-40℃ to +60
Storage Temperature
-50℃ to +70
External Coating
AR
Sealing
IP67
Download document
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type
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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.

- What are the differences between dual-field lenses and continuous zoom lenses?

Both are variable lenses with variable focal length and adjustable sharpness. But there is several fundamental differences:

A. Structurally, a continuous zoom lens has two sets of adjustable lenses, which are used to adjust the focus and sharpness respectively. The dual-field lens has only one set of adjustable lenses, which is used to switch focal length and adjusts the sharpness of the picture.

B. In General, continuous zoom lenses require two sets of motors to control. Dual-field lenses require only one set of motors to switch the focal length and adjust sharpness.

C. The focal length of continuous zoom lenses can be any value within the design range. Whereas the focal length of dual-field lenses can only be switched between the two fixed focal length.

APPLICATIONS
Homeland Security
Maritime & Naval
Security & Surveillance
Review
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