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Home » All Product » LWIR Lens » Thermal Sight Lens » FL 25mm F/1.0 LWIR Aiming Lens For 640x512-17um Detector

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FL 25mm F/1.0 LWIR Aiming Lens For 640x512-17um Detector

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Focal Length 25mm F1.0 IR Ge Lens Thermal Sight Lens For 640x512-17um Detector
Availability:
  • RS25F1.0-640-17

  • Rising

Thermal Sight Lens Description:

Focal Length 25mm F1.0 Thermal Sight Lens Apply to Infrared Sights Scope, Thermal Imager, Thermal Sights.


8-12um Long Wave Germanium Lens Infrared Aiming Lens Apply to 640x512-17um Detector.


The key characteristics of germanium lenses:


Germanium glass is the preferred choice for lenses in infrared cameras because of its high refractive index.


Unlike regular optical glass, it solely allows infrared light to pass through, making it perfect for capturing images in dim lighting.


This distinct attribute enables the identification of unseen animals and plants that cannot be seen with the naked eye.


Nevertheless, germanium is a scarce element with restricted availability, resulting in expensive extraction and production processes for these lenses.


Consequently, infrared camera lenses generally have a higher price compared to standard camera lenses made from artificial materials.



Thermal Sight Lens Parameters:

Product Name Infrared Aiming Lens
Focal Length 25mm
F# 1.0
Wavelength 8-12um
Image Diagonal
13.93mm
Detector >94%
Circular FOV (H)24.5°x(V)18.5°x(D)30.4°
Back Focus Distance 17.84mm
Back Working Distance 9.84mm
Back Focus Length 12.73mm
Dimensions 45mm / 30.5mm
Focus Type Manual Focus
Focus Range 1m to infinity
Mount Type M38x1-6g
Weight 88g
Operating Temperature -40℃ to +80℃
Storage Temperature -40℃ to +80℃
External Coating DLC Coating Available

aiming lens (6)

Main Material of Thermal Sight Lens:

Ge(Germanium), Chalcogenide, ZnSe(Zinc Selenide), ZnS(Zinc Sulfide), Silicon(Si), CaF2(Calcium Fluoride), BaF2(Barium Fluoride), etc.


Infrared Lens 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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