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At present, ULIRVISION has provided tens of thousands of sets of temperature measurement infrared cameras, infrared imaging cameras and UV See corona camera for more than 60 countries, which are widely used in electric power, national defense, energy, video surveillance, scientific research, industry, medical, fire protection, and vehicle industries, it escorts equipment and human safety.

Focal Length (mm)F Number Adapter Detector Field of View Rear Working Distance (mm)Inter face Physical Dimension Working Temperature Coating Waterproof Rating Coating Dual Lens44/1321.0/1.1640*512-17μm14.1°*

Optical Structure

The mechanical compensation zoom lens has an optical structure consisting of a front fixed group, a zoom group, a compensation group, and a rear fixed group.

Front fixed group: its role is to provide a fixed image to the system;

Zoom group: It is responsible for the zooming effect of the system, and linear movement to change the focal length;

Compensation group: non-linear motion according to a certain curve trajectory to compensate the image plane movement generated by the variable magnification group during the zooming process;

Rear fixed group: 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 device aperture stop to ensure that the relative aperture of the system does not change during the zooming motion.

Our company's  double camera lens are very famous, with reliable quality assurance. If you need to order, please contact us

As a professional and reliable infrared camera manufacturer, Ulirvision supplies the following category products, varying from infrared thermal imaging camera to infrared lens. Ulirvision develops innovative technology to make our products more efficient. Ulirvision is striving to create a more human-friendly and sustainable environment for our users through our creative solutions.