Athermalized LWIR Lens 9.1mm F/1.0 Description
Athermalized LWIR Lens 9.1mm F/1.0 is a high-performance long-wave infrared optical solution designed for precision thermal imaging applications. Featuring a 9.1mm focal length and a large f/1.0 aperture, this lens delivers exceptional image clarity and sensitivity, enabling detailed thermal resolution even in low-light or challenging environments. Its athermalized design ensures consistent optical performance across a wide range of temperatures, eliminating the need for frequent recalibration and enhancing reliability in diverse operational conditions. Constructed from premium materials with advanced engineering, the lens is ideal for use in surveillance systems, industrial inspections, environmental monitoring, and military applications. Offering robust durability and superior thermal accuracy, the Athermalized LWIR Lens 9.1mm F/1.0 is an essential component for professionals seeking dependable and high-quality infrared imaging solutions.
Athermalized LWIR Lens 9.1mm F/1.0 Specifications

HFOV
|
160x120
|
384x288
|
640x480
|
1280x1024
|
25μm
|
25.79
|
-
|
-
|
-
|
17μm
|
17
|
39.5
|
-
|
-
|
12μm
|
12.04
|
28.4
|
45.8
|
-
|
Optical Properties
Focal Length (mm)
|
9.1mm
|
F/#
|
1.0
|
Average Transmission
|
>92%
|
Back Focal Length
|
8.18mm
|
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
|
6.8mm
|
Detector Interface Size
|
M19 x 0.5-6g
|
Overall Dimensions (mm)
|
Φ19 x 12.5
|
Weight
|
8g
|
*For drawing, please contact us.
Athermalized LWIR Lens 9.1mm F/1.0 Application
- Thermal Imaging Cameras: Enhances the detection of heat signatures for both commercial and military applications, delivering clear and detailed images across a wide range of lighting conditions.
- Surveillance Systems: Boosts security monitoring effectiveness by providing dependable infrared imaging in varying environmental temperatures, removing the necessity for frequent recalibration.
- Industrial Inspection: Facilitates non-destructive examination and oversight of machinery, electrical systems, and infrastructure by identifying thermal irregularities and preventing potential equipment failures.
- Environmental Monitoring: Aids in tracking natural phenomena, including wildlife behavior and habitat changes, through reliable thermal imaging that remains consistent despite temperature fluctuations.
Athermalized LWIR Lens 9.1mm F/1.0 Packing
Our Athermalized LWIR Lens 9.1mm 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
|
640x480
|
1280x1024
|
25μm
|
25.79
|
-
|
-
|
-
|
17μm
|
17
|
39.5
|
-
|
-
|
12μm
|
12.04
|
28.4
|
45.8
|
-
|
Optical Properties
Focal Length (mm)
|
9.1mm
|
F/#
|
1.0
|
Average Transmission
|
>92%
|
Back Focal Length
|
8.18mm
|
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
|
6.8mm
|
Detector Interface Size
|
M19 x 0.5-6g
|
Overall Dimensions (mm)
|
Φ19 x 12.5
|
Weight
|
8g
|
*For drawing, please contact us.