Knowledge Q&A
Over 30 years experience of making magnifiers and fresnel lenses, we also have some useful knowledge to share with the public.
It's our pleasure to help people find a suitable magnifier so that their vision will be clear and bright.
Usually. It won't get the magnification effort when touching a page. Because a magnifier with convex lens needs some distance between object and lens as focal length. In order to achieve maximum magnification...
Read morePeople usually assume magnifying glasses only help seniors physically, but rarely aware magnifying glasses can help psychologically. We would like to share paragraphs excerpted from “99 years old, no matter...
Read moreUsually, Fresnel lens is cut into spherical surface shape in order to minimize the optical aberration of the image during imaging. The lens can better align an ideal point light source into a parallel...
Read moreThe Fresnel lens has been used in many ways of our daily consumption. You can find it in the camera;s focusing screen, LED spotlight, ATM machines, buses, trucks, solar panel cells, magnfiers, traffic...
Read moreIn order to make the VR headset lens thinner and lighter, some lenses use Fresnel lenses. This lens has the same curvature as a normal lens, but has threads of different sizes on one side. But using a Fresnel...
Read moreApplication of Fresnel lens in projection system. Fresnel lens proved to be the best use in the projection system, its role is to collimate light and focus light. The Fresnel lens tunes the light source...
Read moreThe 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...
Read morePositive 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...
Read moreIf 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...
Read moreThe 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....
Read moreThe 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...
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