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Home » All Product » LWIR Lens » Athermalized Infrared Lens » FL6.9mm F1.0 LWIR Athermal Lens For 640X512-17um

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FL6.9mm F1.0 LWIR Athermal Lens For 640X512-17um

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Focal Length 6.9mm F1.0 Infrared Sulfur Lens For 640x512-17um Detector.
Availability:
  • RSA6.9F1.0-160-17

  • Rising

Infrared Athermal Lens Parameters:

Product Name
Infrared Lens
Focal Length 6.9mm
F# 1.0
Image Diagonal 13.93mm (pixel 17um)
Average Transmission >90%
Circular FOV (H)90°x(V)70°x(D)110.4°
Back Focus Distance 17.7mm
Back Working Distance 9.7mm
Back Focus Length 14.22mm
Dimensions 40mm / 40.92mm
Focus Type Fixed Focal
Focus Range 0.3m to infinity
Mount Type M34x0.5
Detector 640x512-17um
Weight 75g
Operating Temperature -20℃ to +60℃
Storage Temperature -40℃ to +80℃
External Coating AR Coating Available

infrared lens (10)

Company Profile:

ir lens (5)

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;


Infrared Lens Package:

ir lens

FAQ:

What is an anti-reflection film?

Anti-Reflective Coating (AR) is a surface optical coating that improves transmittance by reducing light reflection. In complex optical systems, it can improve contrast by reducing the scattered light in the system.


Many coatings include transparent film structures with different refractive indices. The thickness of the film determines the wavelength of the reflected light it acts on. When the light is reflected twice on the anti-reflection film, it interferes with the original reflected light, thus weakening the reflected light. According to the law of conservation of energy, the energy of light does not change. Thus, when the reflected light decreases, the transmitted light increases. This is the principle of AR coating. In general, when selecting an anti-reflection film, it is necessary to determine the wavelength, such as infrared, visible light and ultraviolet light.


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