CALIN TECHNOLOGY CO., LTD. Patent applications |
Patent application number | Title | Published |
20150331222 | OPTICAL IMAGE PICK-UP LENS - An optical image pick-up lens includes an aperture, a first lens, a second lens, a third lens, and a fourth lens in order along an optical axis from an object side to an image side. The first lens is a positive plastic meniscus lens having a convex surface facing the object side and a concave surface facing the image side. The second lens is a negative plastic biconcave lens. The third lens is a positive glass meniscus lens having a concave surface facing the object side and a convex surface facing the image side. The fourth lens is a plastic lens having an aspheric surface facing the object side, wherein the fourth lens is gradually changed from positive to negative from the center to the edge of the fourth lens. | 11-19-2015 |
20150331219 | LENS ASSEMBLY - A lens assembly includes a lens barrel, a first lens, a second lens, and a third lens. The first lens is provided in the lens barrel with an outer periphery abutting against an inner wall of the lens barrel. The second lens abuts against the first lens, and there is a spacing formed between the second lens and the inner wall of the lens barrel. The third lens abuts against the second lens, and there is another spacing formed between the third lens and the inner wall of the lens barrel. With abutment relations of these lenses, relative positions between each lens can be fixed, and therefore the influence of allowable tolerance of the lens barrel upon optical performance is greatly reduced. | 11-19-2015 |
20150331218 | LENS AND METHOD OF PRODUCING THE SAME - A lens made of glass, includes a first surface, a second surface, and a flange. The first surface has a locating portion and a first reference portion abutting against a first positioning object to fix a relative position between the first surface and the first positioning object in an axial direction and a radial direction thereof. The second surface has a second reference portion abutting against a second positioning object to fix a relative position between the second surface and the second positioning object in an axial direction thereof. The flange is formed on an outer periphery around the first surface and the second surface. | 11-19-2015 |