Athermalized LWIR Lens 4.4mm F/1.0 Description
Athermalized LWIR Lens 4.4mm F/1.0 stands as an exceptional choice for high-performance long-wave infrared imaging across a diverse array of demanding applications. Its precise 4.4mm focal length paired with a generous f/1.0 aperture ensures outstanding image clarity and high sensitivity, while the athermalized design guarantees optical stability in fluctuating thermal environments, removing the necessity for constant recalibration. Whether applied in surveillance, industrial inspection, medical diagnostics, or aerospace operations, this lens delivers consistent and accurate thermal imaging, thereby enhancing operational efficiency and safety. Meticulously engineered with premium materials, the Athermalized LWIR Lens 4.4mm F/1.0 offers professionals a reliable and superior infrared imaging solution for every scenario.
Athermalized LWIR Lens 4.4mm F/1.0 Specifications

HFOV
|
160x120
|
384x288
|
640x512
|
1024x768
|
25μm
|
48.89
|
-
|
-
|
-
|
17μm
|
34.35
|
73.14
|
-
|
-
|
12μm
|
24.62
|
55.28
|
-
|
-
|
Optical Properties
Focal Length (mm)
|
4.4mm
|
F/#
|
1.0
|
Average Transmission
|
>85%
|
Back Focal Length
|
8.87mm
|
Environmental Durability
Operating Temperature
|
-40℃ to +80℃
|
Storage Temperature
|
-50℃ to +80℃
|
Protection Rating
|
IR67
|
First Surface Coating
|
AR
|
Mechanical Properties
Focusing Range
|
0.3m~∞
|
Back Working Distance
|
7.5mm
|
Detector Interface Size
|
M25 x 0.5
|
Overall Dimensions (mm)
|
Φ26 x 28.7
|
Weight
|
40g
|
*For drawing, please contact us.
Athermalized LWIR Lens 4.4mm F/1.0 Application
· Thermal Imaging Cameras: Boost the detection capabilities of heat signatures for both commercial and military applications, delivering sharp and detailed visuals across a wide spectrum of lighting environments.
· Surveillance Systems: Enhance security operations by providing reliable infrared imaging under varying environmental temperatures, minimizing the need for frequent adjustments or recalibrations.
· Industrial Inspection: Support non-invasive testing and continuous monitoring of machinery, electrical networks, and infrastructure by identifying thermal irregularities, thereby averting potential equipment malfunctions.
· Environmental Monitoring: Facilitate the study of natural events, including wildlife activities and habitat alterations, through steady thermal imaging that remains unaffected by temperature changes.
Athermalized LWIR Lens 4.4mm F/1.0 Packing
Our Athermalized LWIR Lens 4.4mm 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 an athermalized IR lens?
An athermalized IR lens is designed to maintain focus across varying temperatures without needing manual adjustment. It automatically compensates for thermal expansion and contraction, which can affect image clarity in infrared imaging applications.
Q2: How does an athermalized IR lens work?
It uses materials with differing thermal expansion rates or unique mechanical designs to counteract temperature-induced focal shifts. This allows it to remain in focus over a wide temperature range.
Q3: Why is temperature stability important in IR lenses?
IR lenses are often used in applications with significant temperature fluctuations. Temperature changes can cause expansion or contraction of lens materials, altering the focus. Athermalized lenses maintain clarity and focus automatically in these conditions.
Specification

HFOV
|
160x120
|
384x288
|
640x512
|
1024x768
|
25μm
|
48.89
|
-
|
-
|
-
|
17μm
|
34.35
|
73.14
|
-
|
-
|
12μm
|
24.62
|
55.28
|
-
|
-
|
Optical Properties
Focal Length (mm)
|
4.4mm
|
F/#
|
1.0
|
Average Transmission
|
>85%
|
Back Focal Length
|
8.87mm
|
Environmental Durability
Operating Temperature
|
-40℃ to +80℃
|
Storage Temperature
|
-50℃ to +80℃
|
Protection Rating
|
IR67
|
First Surface Coating
|
AR
|
Mechanical Properties
Focusing Range
|
0.3m~∞
|
Back Working Distance
|
7.5mm
|
Detector Interface Size
|
M25 x 0.5
|
Overall Dimensions (mm)
|
Φ26 x 28.7
|
Weight
|
40g
|
*For drawing, please contact us.