FL20-100mm F0.77-1.1 LWIR Uncooled Continuous Zoom Lens For 640x512-17um Detector

Description of Infrared Zoom Lens:

1. Basic principles:

Utilize the movement of two or more lens groups in the optical system to change the combined focal length of the optical system while keeping the position of the image plane unchanged, and the image quality is always kept good during the zooming process.

2. Optical system:

Mechanical compensation zoom system: each moving component moves relatively complexly according to different motion rules, and finally achieves the purpose of preventing image plane movement. Mechanical compensation zoom lens: one group of lenses moves linearly (commonly known as the zoom group) to change the focal length, and the other group of lenses (commonly known as the compensation group) makes a small amount of non-linear movement to compensate for the displacement of the image plane to achieve both zooming of the optical system. And the position of the image plane is required to be stable.

3. Optical structure

The optical structure of the mechanically compensated zoom lens consists of a front fixed group, a zoom group, a compensation group, and a rear fixed group.

1. Front fixation group: its function is to provide a fixed image for the system;

2. Zoom group: responsible for the zoom function of the system, making linear movement to change the focal length;

3. Compensation group: make nonlinear movement according to a certain curve track to compensate the image plane movement generated by the zoom group during the zooming process;

4. Rear fixed group: It is used to convert the image of the compensation group into the final real image of the system, and adjust the synthetic focal length value of the system and the aperture diaphragm of the device to ensure that the relative aperture of the system remains unchanged during the zooming movement.

Applications of infrared lenses include:

1. Airborne (UAV)

2. Security and Surveillance

3. Maritme and Naval Surveillance

4. Thermal Imaging Devices

5. Defense

6. Thermography

7. Enhanced Vision
   

LWIR Uncooled Continuous Zoom Lens Parameters

If you want to know more, please contact us:

Email: alwson@risingoptics.com

Whatsapp: +86 13952018524

Company Profile:

LWIR Uncooled Continuous Zoom Lens Process Technology:

Infrared lens processing equipment:

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;

FAQ:

Q1: Can items be printed with our own logo? 

A: Yes, you only need to send us the source file of the logo.

Q2: Do you provide samples? Is it free or extra? 

A: We will charge as little sample fee as possible, and sometimes we may even provide samples for free. However, you must pay us the courier fee by the following courier methods: DHL, TNT, UPS and FEDEX.

Q3: What if the item is broken? 

A: Except for human error, we will replace the defect in a completely new way Within 7 days after you get our products.