Yanwu lens price how quality

It can be, a lot of car enthusiasts modify the car will use this brand, Yanwu lens is Jinan one second lighting company research and development production, it is mainly for China's road conditions research and development of products, he perfectly beyond the previous domestic mainstream lens.

Lens selection parameters:

1. Design wavelength: the wavelength that enables the lens to achieve the best results. Lenses are available in other wavelengths. Contact Leen and Company to seek out how the lens works at other wavelengths.

2. Numerical Aperture (NA): A value that measures the maximum angle at which a lens can receive light.

3. Clearance Aperture (CA): the maximum diameter of a surface through which light can pass, by design. It is smaller than the actual spherical diameter, the physical aperture (PA).

4. Effective Focal Length (EFL): the distance between the main plane and the focal point. The normal tolerance is ±1%.

5. Magnification: the ratio of image size and physical size. The calibration lens is non-qualified.

6. RMS Wavefront Error (RMS WFE): A measurement of the chromatic aberration (error) in the lens. Diffraction limitation means that due to diffraction, the lens is guaranteed to conform to the theoretical limits (the highest achievable level of operation that conforms to the laws of physics).

7. Outer diameter: the diameter of the outer barrel of the lens, with a standard tolerance of ±0.015mm.