There are two kinds of optical Lens :convex lens and concave lens. Convex lens Imaging rule is: if objects is out of the focus, the inverted real image will present in other side of convex focus, there are three kinds of real image: size reduced, the same size, and amplified .
If the Object distance is smaller, the image distance will be larger, then the real image will also be greater;
If Objects put inside focus, the magnified virtual image will present on the same side of the focus of convex,
If the Object distance are larger, the image distance will be bigger , and the virtual image are also bigger; The Effects of concave lens is for light is emission, the imaging rules is much more complex than convex lens.
Our company are expertise at production various style different material different specifications of magnifying lenses (as: microscope tablets, and variable times lenses, and eyepiece lens, and Red eyepiece, and double even lenses, and tube lenses, and field mirror, and variable times field mirror, and single/double convex, and child mother mirror, and more surface mirror, narrowed mirror, and Fresnel, and glass,) and zoom border (as: metal outside box/handles, and plastic outside box/handles, and Siamese transparent, and projection type, and pen type, and pen type, and flora and fauna model, and card type, and bookmarks type, and scale, and with lamp reading type, and folding type, and Board clip type, and opened type , Cards, key chains and so on) paper folded telescope (children's educational model telescope
Teaching toy telescope telescope lens magnifying Fresnel lenses of paper plastic toy telescope observation of insects with a magnifying microscope lens projection projector pen BHM surgery reading Magnifier-a magnifying glass Magnifier
