The Fresnel lens is a sheet, round or other shape that is injected or molded from polyolefin materials. There are two main functions of the Fresnel lens acting on the probe: one is focusing, which is to refract...

Positive Fresnel lens: The light enters from one side, and exits through the lens on the other side to focus into a point or exit as parallel light. The focus is on the other side of the light and is finitely...

If the LED lamp lens element is made of optical glass, the production cost is relatively high and it is fragile. If the thickness of the element can be reduced, or even a sheet lens, the size of the optical...

The infrared PIR Fresnel lens sensing method is static, and there is infrared light in the space. Because the dual-element probe adopts complementary technology, no electrical signal output will be generated....

The design principle of the Fresnel lens is that the lens is no longer regarded as a whole during processing, but as an entity composed of many microstructures. These microstructures retain the curvature...

Infrared sensing systems can be divided into five categories according to their functions. They are measurement systems that use infrared as the medium. According to the detection mechanism, they can be divided...

The first reaction to seeing the "Fresnel lens" is that I don't know what it is! Only after seeing the practical application of these Fresnel lenses, we know that it has already entered our daily lives....

Traditional lenses are relatively thick and heavy and small in size; Fresnel lenses are light, thin and large in size.

Frensnel lens for LED light distribution Fresnel lens can be moulded or injection mold depending on light source model, COB light source (value of luminous), light angle, distance from lamp bead to lens...

The PVC Fresnel mangifying sheet can be cleaned by glass cleaning spray like Windex or lens cleaner spray. With clean water then wiped by a soft cloth or eyeglasses cloth and dray naturely.