Athermalized LWIR Lens 4.6mm F/1.0 Description
Athermalized LWIR Lens 4.6mm F/1.0 is a high-performance infrared lens designed for long-wave infrared (LWIR) thermal imaging systems. Featuring an athermalized design, this lens ensures consistent focus and image clarity across a wide range of temperatures, making it ideal for environments with frequent temperature fluctuations. The 4.6mm focal length offers a balanced field of view, providing a mix of broad coverage and detailed thermal imaging, perfect for general-purpose thermal cameras. With an F/1.0 aperture, the lens allows maximum light transmission, enhancing its performance in low-light conditions. This lens is well-suited for industrial inspections, security surveillance, drone-based thermal systems, automotive applications, and military operations, offering reliable and sharp thermal vision in demanding environments.
Athermalized LWIR Lens 4.6mm F/1.0 Specifications

HFOV
|
160x120
|
320x256
|
384x288
|
640x512
|
25μm
|
47
|
-
|
-
|
-
|
17μm
|
32.94
|
61.2
|
90
|
-
|
12μm
|
23.6
|
45.3
|
53.2
|
-
|
Optical Properties
Focal Length
|
4.6mm
|
F/#
|
1.0
|
Average Transmission
|
>84%
|
Back Focal Length
|
9.85mm
|
Environmental Durability
Operating Temperature
|
-40℃ to +60℃
|
Storage Temperature
|
-50℃ to +70℃
|
Protection Rating
|
IR67
|
First Surface Coating
|
DLC
|
Mechanical Properties
Focusing Range
|
0.3m~∞
|
Back Working Distance
|
8mm
|
Detector Interface Size
|
M34 x 0.5-6g
|
Overall Dimensions (mm)
|
Φ35 x 20.4
|
Weight
|
40g
|
*For drawing, please contact us.
Athermalized LWIR Lens 4.6mm F/1.0 Application
Ideal for inspecting machinery, electrical systems, and infrastructure, detecting temperature anomalies or potential faults in industrial environments.
- Security and Surveillance:
Used in security cameras and monitoring systems to provide clear thermal imaging for surveillance, even in low-light or night-time conditions.
- Drone-based Thermal Imaging:
Perfect for mounting on drones to capture high-quality thermal images over wide areas, assisting in aerial surveillance, mapping, and environmental monitoring.
Integrated into advanced driver-assistance systems (ADAS) for automotive applications, enabling thermal detection of obstacles, pedestrians, and animals, enhancing safety during low-light conditions.
Athermalized LWIR Lens 4.6mm F/1.0 Packing
Our Athermalized LWIR Lens 4.6mm F/1.0 is carefully handled during storage and transportation to preserve the quality of our product in its original condition.
FAQs
Q1: What is the purpose of the AR (Anti-Reflection) coating?
The AR coating reduces reflections on the lens surface, allowing more infrared light to pass through, which enhances image contrast and clarity. This minimizes light loss and improves the overall performance of the lens, especially in low-light environments.
Q2: What are the main applications of this lens?
The Athermalized LWIR Lens 4.6mm F/1.0 is ideal for industrial inspections, security and surveillance, drone-based thermal imaging, automotive night vision, military and defense applications, search and rescue operations, firefighting, environmental monitoring, building inspections, and agriculture.
Q3: Is the Athermalized LWIR Lens 4.6mm F/1.0 compatible with all thermal imaging systems?
The lens is designed for use with long-wave infrared (LWIR) thermal imaging systems, typically operating in the 8-14 micron wavelength range. It is important to check compatibility with your specific camera or sensor to ensure proper integration.
Specification

HFOV
|
160x120
|
320x256
|
384x288
|
640x512
|
25μm
|
47
|
-
|
-
|
-
|
17μm
|
32.94
|
61.2
|
90
|
-
|
12μm
|
23.6
|
45.3
|
53.2
|
-
|
Optical Properties
Focal Length
|
4.6mm
|
F/#
|
1.0
|
Average Transmission
|
>84%
|
Back Focal Length
|
9.85mm
|
Environmental Durability
Operating Temperature
|
-40℃ to +60℃
|
Storage Temperature
|
-50℃ to +70℃
|
Protection Rating
|
IR67
|
First Surface Coating
|
DLC
|
Mechanical Properties
Focusing Range
|
0.3m~∞
|
Back Working Distance
|
8mm
|
Detector Interface Size
|
M34 x 0.5-6g
|
Overall Dimensions (mm)
|
Φ35 x 20.4
|
Weight
|
40g
|
*For drawing, please contact us.