Changchun Long Ze Precision Optics Co., Ltd.

High Quality Spherical Lenses Spherical lenses  are lenses with at least one curving surface. They converge or diverge light, change the path of light and affect the wavefront curvature of light. They  are widely used in medical imaging, laser optics, security monitoring, automotive industry, military industry, aerospace and other high-tech fields. What are the kinds of spherical lenses? 1.  Plano Convex Lenses A plano convex lens is a lens that is flat on the one side and convex on the other. Plano convex lenses converge parallel light, correct the deflected light and convert point light sources into parallel light. When light enters from the convex surface of the plano convex lens, the light will converge to a point on the convex surface. When a point light source enters from the plane of the plano convex lens, the light will be turned into a parallel beam. The focal length of a plano convex lens can vary depending on wavelength. Plano convex lenses can be used in transmit

As a  Dome lens Manufacturer , share with you. Standard lens: A standard lens is a lens with a focal length equal to or close to the diagonal length of the camera frame. The "standard" range taken by the camera's zoom lens refers to the angle of field of view of the lens that approximates the angle at which people view the TV screen. If the distance between the viewer and the image is exactly enough to make him distinguish the finest part of the TV program, the angle between the fluorescent screen and his eyes are about 24 °, so we set the field of view 24 ° as the "standard" Shot. Plano Convex Lenses The advantages of standard lenses: The imaging effect is similar to the visual experience of the human eye. The space and perspective of the image and the relative size of the object also conform to human visual habits. Wide-angle lens: A wide-angle lens is a lens with a focal length that is shorter than the angle of view than a standard lens. For camera

Optical Lenses  are commonly used optical materials, and their manufacturing processes are mature and diverse. Generally, optical glass can transmit various colored light with a wavelength of 0.35 ~ 2.5m. Light outside this wavelength range will be strongly absorbed by the optical glass. The development of optical glass and the development of optical instruments are inseparable. The new reform of optical systems often puts forward new requirements for optical glass, thus promoting the development of optical glass. Similarly, the successful trial production of new varieties of glass often also promotes the development of optical instruments. As various new varieties of optical glass have more or less defects in processing or use performance, while researching and expanding the field of optical glass, it is also aimed at improving the physical and physicochemical properties of various new varieties of optical glass. As well as the production process a lot of work has been done. Glas

Optical Glass Lenses  are mixed with high-purity silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium and other oxides according to a specific formula, melted in a platinum crucible at high temperature, stirred with ultrasound to remove bubbles; Slowly cool down for a long time to avoid internal stress in the glass block. After cooling, the glass block must be measured by optical instruments to check whether the purity, transparency, uniformity, refractive index and dispersion rate meet the specifications. In order to produce high-quality optical glass, it must undergo cold processing, polishing, cleaning, and other processes before obtaining high-quality optical glass lenses. Below  Optical Glass Domes Factory  mainly talks about the cleaning process of optical glass.  Optical Glass Lenses What are the factors that affect the cleaning of optical glass? Let's take a closer look: A, the technical key of the cleaning process: whether the optical glass

As a  Spherical Lenses Manufacturer , share with you. Benefits of meniscus design Compared to many other shapes of optical lenses, Meniscus Lenses rarely provide finished products.  Meniscus Lenses  are mainly used for focusing small spots or collimating applications, while plano-convex lenses are often superior in price / performance. Meniscus Lenses Spherical aberration Due to the spherical nature of the lens, spherical aberrations produce parallel rays from the optical axis at different distances, without intersecting at the same point. Although multiple lenses can be used to correct spherical aberrations, it is best to minimize the number of lenses for many infrared systems where the material cost is much higher than the visible material. There is no need to use multiple lenses. By shaping the lenses into the best shape, the spherical aberration of a single lens can be minimized. For a fixed index of refraction and lens thickness, there are an unlimited number of com

As a  Fused Silica Windows Manufacturer , share with you. Fused Silica Mirrors  is a single component amorphous material of silicon dioxide. Its microstructure is a simple network composed of silicon tetrahedral structural unit. Due to the large chemical bond energy of Si-O, the structure is very compact, so optical Quartz glass has unique properties, especially transparent quartz glass has excellent optical properties and has excellent transmittance in the continuous wavelength range of ultraviolet to infrared radiation. Fused Silica Mirrors Fused silica mirrors have extremely low thermal expansion coefficient, high temperature resistance, excellent chemical stability, excellent electrical insulation, low and stable ultrasonic retardation performance, excellent UV transmission performance, and visible and near infrared transmission. Spectral performance, and has higher mechanical properties than ordinary glass. Fused silica mirrors are acidic materials. They are inert to an