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Polarizing mirror

2019-07-14 Company News 8093 次浏览
Most friends believe that polarizers can only be used in cameras. In fact, polarizers used in photography lenses are very common, but they are also very ordinary because polarizers with precise optical indices are expensive. Of course, if you need to customize an ultra precision polarizer, you can contact our customer service. Today, Ruicheng Optoelectronics will take you to learn about polarizers and the application of polarizer principles in machine vision systems.

Many machine vision systems emit chaotic light on the surface of objects, such as chips, cigarette packs, and polished metal surfaces, which greatly affect the quality of imaging and reduce the contrast of detection features. To avoid this phenomenon, in many visual system constructions, polarizers are chosen to be placed in front of the lens.

Next, Ruicheng Optoelectronics will introduce the optical principles and applications of polarizers.

Light is actually an electromagnetic wave, and what we can see with the naked eye is a very small range, around 380-780 nanometers, which is called visible light.

Polarization filters can be used to extinguish reflected light from smooth surfaces and non-metallic surfaces.

A circular polarizer is composed of a quarter wave plate and a linear polarizer.

In landscape photography, there is an irreplaceable filter, which is a polarizer. The effect of a polarizer cannot be simulated and can only be captured in one shot. Unable to use post production software such as Photoshop for real-time production.

The function of a polarizing mirror: it can filter out reflections, natural light is emitted, and after being reflected by the surface of an object, the properties of the light are secretly changed. We call this type of light polarized light. The human eye cannot distinguish the difference between polarized light and natural light, but a polarizing mirror is like a filter. It allows natural light to pass through, but can intercept some polarized light, so that its influence can be artificially removed.

This is very important in photography, for example, when taking photos of water surfaces, you can remove the annoying water surface reflections and capture underwater plants with different colors; When shooting shop windows, it is possible to eliminate the reflected light on the glass and capture the exhibits inside.

The polarizing mirror produced by Ruicheng Optoelectronics adopts exclusive coating technology and high-quality optical materials, which have better performance than other polarizing mirrors on the market. If you need it, please contact us.
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