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.
You squint at a tiny stitch or a loose screw. Your eyes burn, and your hands shake from holding a lens. A hands free led magnifier fixes this problem. Getting the most from it means three things. First,...
Read moreA card magnifier is a thin, wallet-sized magnifying lens that helps you read small print on the go. These ultra-thin, compact reading aids fit easily in a wallet, purse, or pocket. You might often use one to check...
Read moreA Fresnel lens works in a PIR motion sensor by focusing and splitting infrared light across multiple detection zones. This design lets the sensor cover a wide area while still catching small changes in heat.Think...
Read moreYou squint to put thread through a needle, but your fingers stop. Small details turn into a blurry mess. A lighted magnifying glass can fix this, but only if you use it the right way. Good tools work best...
Read moreProduction starts with a precision-tooled master plate carrying the negative of the groove pattern, which is then used to emboss or mold the pattern into flat plastic sheet stock, either through a heated...
Read moreA reading magnifier manufacturer offering OEM/ODM services designs, engineers, and produces magnifying glasses, LED illuminated magnifiers, and low-vision aids under a buyer's own brand or a jointly developed...
Read moreA PIR sensor Fresnel lens is a thin, ribbed optical component made from HDPE, PE, or Poly FIR200 that focuses infrared radiation (8–14 µm) from the human body onto a pyroelectric sensor element, extending...
Read moreSunlight as a Pencil: Drawing High-Detail Art on wooden board with a Fresnel Lens A Fresnel lens acts as a large-aperture concentrator, taking a massive amount of solar energy and compressing it into a tiny,...
Read moreNo. It won't get the magnification effort when touching a page. Because the magnifier need some distance between object and lens as focal length.In order to achieve maximum magnification without distortion,...
Read moreWhen a Fresnel lens is used as a simple magnifier and held close to an object (object within the focal point), it will produce a magnified, upright virtual image, similar to a regular convex lens in the same...
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