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FL 4.1mm F1.2 LWIR Athermal Lens For 640x512-12um

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8-12um Long Wave Infrared Germanium Lens Focal Length 4.1mm F1.2 Athermal Lens For Drone or Infrared Camera
Availability:
  • RSA4.1F1.2-640-12

  • Rising

Infrared Athermal Lens Description

  1. Material: Germanium, ZnSe, ZnS, etc.

  2. Usage: Thermal Imaging, Thermal Scope, Thermal Sight, Thermal Camera, Drone, etc.

  3. Package: First with the desiccant into the bubble bag, and then with plastic box packaging, and finally cartons.


Infrared lenses work in three wave bands: short wave, medium wave and long wave. 


The infrared lens should be specially designed according to its working band to optimize performance. 


The infrared materials used in infrared lenses for different bands are also different.


LWIR Athermal Lens Parameters


Product Name Infrared Lens
Material Germanium Lens
Focal Length 4.1mm
F# 1.2
Wavelength 8-12um
Image Diagonal 9.83mm (Pixel 12um)
Average Transmission >90%
Circular FOV (H)100°x(V)82°x(D)126°
Back Focus Distance 14mm
Back Working Distance 8mm
Back Focus Length 9.11mm
Dimensions 32mm / 24.05mm
Focus Type Fixed Focal
Focus Range 0.3 to infinity
Mount Type M25x0.5
Detector 640x512-12um
Weight 38g
Operating Temperature -40℃~+80℃
Storage Temperature
-40℃~+80℃
External Coating DLC Coating Available

4.1 ir lens

Infrared Lens Factory Processing Equipment:

ir lens

1. Inner carving test platform;

2. Microscope;

3. Opto Tech aspheric processing;

4. Polishing machine;

5. Thickness Gauge;

6. Ultrasonic Cleaner;

7. Workshop;

8. Interferometer;

9. High and low tempera ture test chamber;

10. High polishing machine;

11. Optical bench;

12. Raul milling;

13. Atomic force microscope;

14. Centralinstrument;

15. Hand Grinding and Polishing Machine;

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