made in china 45mm biconvex lens 25mm diameter 45mm focal length
fresnel lens are positive focal length elements that have one spherical surface and one flat surface. These lenses are designed for infinite conjugate (parallel light) use or simple imaging in non-critical applications. These optic lenses are ideal for all-purpose focusing elements.
| Material | BK7, BK9, Silicon, Ge, sapphire, ect. | |
| Size | according to your requires | |
| Center thickness | according to your requires | |
| Diameter Tolerance | ±0.10 | |
| Thickness Tolerance | ±0.2 mm | |
| Surface reflectance | 30% (per one surface) | |
| Surface Quality (Scratch-Dig) | 60-40 (according to your requires) | |
| Focal length | according to your drawing | |
| Shape | Plano-convex | |
| Centration | <3′ | |
| Clear aperture | >= 90%central of the diameter | |
| Wavelength | according to your requires | |
| Coating | Uncoated (according to your requires) | |
| Edges | Fine ground and beveled | |
Plano-Convex Lenses are Optical Lenses with a positive focal length. Plano-Convex Lenses are ideal for light collimation or for focusing applications utilizing monochromatic illumination, in a range of industries including industrial, pharmaceutical, robotics, or defense. PCX Lenses have one convex surface. For maximum efficiency, the second, plano (flat) surface should face the desired focal plane. Plano-Convex lenses are commonly used in a wide range of applications or industries.
A plano-convex lens is a convergent lens with one flat surface and one convex surface. It focuses parallel light rays to a positive focal point, to form real images that can be manipulated using spatial filters. The asymmetry of plano-convex lenses reduces spherical aberration in applications where the image and object lie at unequal distances from the lens.
The maximum sharp focus is achieved when the curved portion of the lens is oriented toward the object. Plano-convex lenses are used for applying focus to an optical system, and collimating diverging light beams.
Plano-convex lenses have positive focal lengths, and an orientation critical to the image quality. Low spherical aberration is obtained if the lens is orientated such that the collimated beam enters or exits the curved surface, thereby making the plano side face towards the point source or focus.
Shanghai Hengxiang Optical Electronics Co.,Ltd, located on Shanghai, an international city of China, set up in 2001, is a professional manufacturing high-tech corporation, providesresearch and manufacturing ,entity integrating optical,mechanical and electronic design. Now we have finished primary pipelining of encoder manufacture.
"HengXiang" brand encoder, has ISO9001:2000 Quality Management System Certificate and CE Certification, moreover, we have own invention patents five and utility model patents five, also passed Shanghai New and High-tech AchievementsTransformation Project.
Our target: Meeting Client's Requirement,Creating Social value,serving clients attentively and Achieving win-win.
Sincerely welcome all customers to visit our company, to review and custom "HengXiang" brand products .
Shanghai Hengxiang Optical Electronics Co,ltd
Kuma Feng
Mobile:+86-15956966023
Tel:+86-21-54613487-8019
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