Athermalized LWIR Lens 25mm F/1.0 Description
Athermalized LWIR Lens is meticulously engineered to provide superior performance in long-wave infrared applications by ensuring optical stability across a wide range of temperatures. Utilizing advanced athermalization techniques and high-quality materials, this lens maintains consistent focus and minimizes thermal-induced distortions, delivering clear and precise imaging even in fluctuating environmental conditions. Its excellent transmission capabilities within the LWIR spectrum make it ideal for applications such as thermal imaging, night vision, surveillance systems, and scientific instrumentation. The robust and compact design facilitates seamless integration into various optical assemblies, while its durable construction guarantees long-term reliability and performance. With exceptional thermal stability and outstanding optical clarity, the Athermalized LWIR Lens stands as an optimal solution for demanding infrared applications that require precision and dependability.
Athermalized LWIR Lens 25mm F/1.0 Specifications

HFOV
|
160x120
|
384x288
|
640x512
|
1024x768
|
25μm
|
9.15
|
21.74
|
-
|
-
|
17μm
|
6.23
|
14.88
|
24.55
|
-
|
12μm
|
4.4
|
10.53
|
17.46
|
-
|
Optical Properties
Focal Length (mm)
|
25mm
|
F/#
|
1.0
|
Average Transmission
|
>88%
|
Back Focal Length
|
13.46mm
|
Environmental Durability
Operating Temperature
|
-40℃ to +80℃
|
Storage Temperature
|
-50℃ to +80℃
|
Protection Rating
|
IR67
|
First Surface Coating
|
AR
|
Mechanical Properties
Focusing Range
|
0.5m~∞
|
Back Working Distance
|
11mm
|
Detector Interface Size
|
M29 x 0.5
|
Overall Dimensions (mm)
|
Φ35 x 31.7
|
Weight
|
55g
|
*For drawing, please contact us.
Athermalized LWIR Lens 25mm F/1.0 Application
· Thermal Imaging Cameras
Surveillance: Enhanced night vision and security monitoring.
Wildlife Observation: Non-intrusive tracking of animals in their natural habitat.
· Industrial Inspections
Equipment Monitoring: Detecting overheating components in machinery.
Building Inspections: Identifying insulation gaps and structural issues.
· Automotive Systems
Night Vision Assist: Improving driver safety by detecting pedestrians and obstacles in low visibility.
· Medical Imaging
Diagnostic Tools: Monitoring body temperature and detecting inflammation.
Athermalized LWIR Lens 25mm F/1.0 Packing
Our Athermalized LWIR Lens 25mm 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
|
9.15
|
21.74
|
-
|
-
|
17μm
|
6.23
|
14.88
|
24.55
|
-
|
12μm
|
4.4
|
10.53
|
17.46
|
-
|
Optical Properties
Focal Length (mm)
|
25mm
|
F/#
|
1.0
|
Average Transmission
|
>88%
|
Back Focal Length
|
13.46mm
|
Environmental Durability
Operating Temperature
|
-40℃ to +80℃
|
Storage Temperature
|
-50℃ to +80℃
|
Protection Rating
|
IR67
|
First Surface Coating
|
AR
|
Mechanical Properties
Focusing Range
|
0.5m~∞
|
Back Working Distance
|
11mm
|
Detector Interface Size
|
M29 x 0.5
|
Overall Dimensions (mm)
|
Φ35 x 31.7
|
Weight
|
55g
|
*For drawing, please contact us.