Changchun Long Ze Precision Optics Co., Ltd.

Plano Convex Lenses China 's application principle on the camera: (1) imaging principle The light emitted by an object is reflected or refracted by an optical element, and the image reconverged is called a real image, which is the intersection point of the actual light. In  Plano Convex Lenses  imaging, the real images formed are all inverted. If the light emitted by an object diverges after being reflected or refracted by an optical element, the image formed by the intersecting extensions of them is called a virtual image. (2) Undertaking method Virtual images can be viewed directly with the eyes, but cannot be taken over with a light screen; real images can be taken with either a light screen or directly with the eyes. When people look at the virtual image, light still enters the human eye, but the light does not come from the virtual image but is the light reflected or refracted by the optical element. People just have the experience of "light propagating in a stra

Dome lens is using for Underwater photography, it has a relatively simple structure than the zoom lens, only made from an optical dome and Optomechanics housing. But, the optical dome is more difficult to manufacturing than any other lens, because of the optical dome with a surface nearly hemisphere. CLZ Precision Optics is a high precision optics manufacturer, we can provide the optical dome for dome lens. Features of the dome applied to underwater photography need thinner thickness to reduce weight, strong materials prevent scratches and high precision to improve the sharpness of the photography. Our underwater photography optical domes made from optical glass, The most common materials is N-BK7 or H-K9L. We are a good supplier for OEM dome lens with rich experience. On page of our products " Optical Dome ", more information is waiting for you! 

Optical Dome Lens  differs from other glasses in that it is an integral part of an optical system and must meet the requirements of optical imaging. Its cold processing technology uses chemical vapor phase heat treatment and a single piece of soda-lime-silica glass to change its original molecular structure without affecting the original color and light transmittance of the glass, so that it meets the ultra-hardness standard, and meets fire protection requirements under high-temperature flame impact Super-hardness fire-resistant glass, its manufacturing method and special equipment. It is made of the following weight ratio components: potassium salt vapor (72% to 83%), argon (7% to 10%), gaseous copper chloride (8% to 12%), nitrogen (2 % ~ 6%). It includes the following processes: cutting with soda-lime-silica glass as a the substrate, cold processing with fine grinding edges → chemical vapor-phase heat treatment of cold-processed soda-lime-silica glass → treatment of fire-resistant

In terms of modern technology applications, optical coatings can be mainly coated on the surface of various materials such as  Optical Glass Lenses , plastics, optical fibers, crystals, and so on. As long as the an instrument that needs to use light must have an optical coating, it is an important part of modern optical instruments and various optical devices.  Optical Coatings  have good robustness, optical stability, low cost, and hardly increase the volume and weight of the material, so it is the preferred method to change the optical parameters of the system. Optical Glass Lenses There are many optical instruments used in the visible spectrum region. As far as their output is concerned, they occupy most of the antireflection film, and antireflection processing is required on almost all-optical devices. Single-layer anti-reflection film is a very widely used film, and it is also the simplest film system. Consider the case of normal incidence, i = 0, and make the substrate s