Athermalized LWIR Lens 55mm F/1.0 Description
Athermalized LWIR Lens 55mm F/1.0 is a high-performance long-wave infrared (LWIR) lens designed for advanced thermal imaging applications, offering exceptional clarity and focus across a wide temperature range. Its athermalized design ensures that the lens maintains sharp focus and optimal image quality regardless of temperature fluctuations, making it ideal for environments where temperature changes are frequent. The 55mm focal length provides a narrow field of view with enhanced detail, making it perfect for applications requiring long-range detection and precise thermal imaging. With an F/1.0 aperture, the lens captures more infrared light, allowing for excellent performance in low-light conditions. This lens is well-suited for industrial inspections, surveillance, military and defense applications, search and rescue operations, and long-distance thermal imaging, offering reliable and high-quality thermal vision in demanding environments.
Athermalized LWIR Lens 55mm F/1.0 Specifications

HFOV
|
384x288
|
640x512
|
1024x768
|
1280x1024
|
25μm
|
4.17
|
9.98
|
16.55
|
-
|
17μm
|
2.83
|
6.79
|
11.3
|
-
|
12μm
|
2.0
|
4.8
|
7.99
|
15.9
|
Optical Properties
Focal Length
|
55mm
|
F/#
|
1.0
|
Average Transmission
|
DLC: >83%
AR: >88%
|
Back Focal Length
|
27.24mm
|
Environmental Durability
Operating Temperature
|
-40℃ to +80℃
|
Storage Temperature
|
-50℃ to +80℃
|
Protection Rating
|
IR67
|
First Surface Coating
|
DLC
|
Mechanical Properties
Focusing Range
|
1.5m~∞
|
Back Working Distance
|
14.5mm
|
Detector Interface Size
|
M45 x 1
|
Overall Dimensions (mm)
|
Φ68.5 x 74.4
|
Weight
|
340g
|
*For drawing, please contact us.
Athermalized LWIR Lens 55mm F/1.0 Application
- Long-range Thermal Imaging:
Ideal for applications that require detailed thermal imaging at long distances, such as wildlife monitoring, border surveillance, and security.
Used for inspecting large machinery, electrical systems, and infrastructure, detecting temperature anomalies or potential issues from a distance.
- Military and Defense Applications:
Employed in military surveillance and reconnaissance, providing high-detail infrared imaging for target detection, border patrol, and tactical operations.
- Automotive Night Vision Systems:
Applied in advanced driver-assistance systems (ADAS) for vehicles, providing long-range thermal detection of pedestrians, obstacles, and animals in low-light conditions.
Athermalized LWIR Lens 55mm F/1.0 Packing
Our Athermalized LWIR Lens 55mm F/1.0 is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
FAQs
Q1: What are the main applications of this lens?
The Athermalized LWIR Lens 55mm F/1.0 is ideal for long-range thermal imaging, military and defense operations, industrial inspections, search and rescue missions, drone surveillance, automotive night vision, firefighting equipment, and border security.
Q2: Can this lens be used for both indoor and outdoor applications?
Yes, the Athermalized LWIR Lens 55mm F/1.0 is designed to perform reliably in both indoor and outdoor environments. Its athermalized design ensures consistent focus regardless of temperature changes, making it suitable for use in diverse conditions.
Q3: Is the Athermalized LWIR Lens 55mm F/1.0 compatible with all thermal imaging systems?
This lens is designed for use with long-wave infrared (LWIR) thermal imaging systems, typically operating in the 8-14 micron wavelength range. Be sure to verify the compatibility of this lens with your specific camera or sensor.
Specification

HFOV
|
384x288
|
640x512
|
1024x768
|
1280x1024
|
25μm
|
4.17
|
9.98
|
16.55
|
-
|
17μm
|
2.83
|
6.79
|
11.3
|
-
|
12μm
|
2.0
|
4.8
|
7.99
|
15.9
|
Optical Properties
Focal Length
|
55mm
|
F/#
|
1.0
|
Average Transmission
|
DLC: >83%
AR: >88%
|
Back Focal Length
|
27.24mm
|
Environmental Durability
Operating Temperature
|
-40℃ to +80℃
|
Storage Temperature
|
-50℃ to +80℃
|
Protection Rating
|
IR67
|
First Surface Coating
|
DLC
|
Mechanical Properties
Focusing Range
|
1.5m~∞
|
Back Working Distance
|
14.5mm
|
Detector Interface Size
|
M45 x 1
|
Overall Dimensions (mm)
|
Φ68.5 x 74.4
|
Weight
|
340g
|
*For drawing, please contact us.