Cylindrical Lens

Production of cylindrical lenses Cylindrical lens from Phtonchina is among top-level in terms of surface quality, irregularity and dimension tolerance. It also provides the high precision, special shapes and specifications designed by customers. Photonchina design and manufacture cylindrical lenses(include round versions), plano-convex, plano-concave, acylindrical lenses and cylindrical achromatic doublets. Achromatic cylinder lenses provide additional color correction by minimizing chromatic aberration. Hydrid acylinder lenses are typically used for color correction, in addition to minimizing spherical aberration.   Our precision cylindrical lenses are produced to meet the demanding requirements of laser electro-optic applications. They are manufactured from fine annealed optical glass or other materials designated by customers and are polished to tight tolerances to ensure minimum wavefront distortion. Tight surface quality tolerances minimize scatter and unwanted diffraction effects.   Optical coating By virtue of over 20 years of experience in designing and operation of optical coating technique, Photonchina uses its vacuum coating equipment imported from Germany or Japan as well as domestic brand to supply a very wide of coating service for customers worldwide.   Broadband visible antireflection coating Our broadband multilayer antireflection coating markedly improves the transmission efficiency of these lenses by reducing surface reflections over a 430-700nm wavelength range. This AR coating performs effectively for multiple visible wavelengths and tunable lasers eliminating the need for several sets of optics.   Laser V-coating from Photonchina offers the lowest reflectance at 1064nm for maximum transmission while maintaining high durability and excellent damage resistance. Valuable laser energy is efficiently transmitted through the plano-convex lens rather than lost to surface reflection and scattering. The trade off to its superior performance is the minimal laser line wavelength range.   Lenses made by Photonchina have especially been suited for sensitive laser applications, including laser scanning, diode laser beam shaping. Additional applications include focusing light into a thin line for optical metrology or collecting light in spectroscopy systems. They can also be used to expand the output of a laser diode into a symmetrical beam. General comments on manufacturing limits for Photonchina This represents a general list of soft limits and is intended for reference only. As requirements move closer to a min or max shown, fabrication becomes more difficult. Certain combinations are attainable, with extra significant fixturing costs, e.ge. crossed axis cylinders, cylinders/spheres. Aperture coverage is often limited by the range of diffractive nulls available. Length is always the dimension along the plano axis and width is the dimension across the power axis. Capabilities Attribute          Standard level         Premium        Photonchina’s Ability Diameter(mm)            +/-0.100          +/-0.025                +/-0.015 Central Thickness(mm)   +/-0.150         +/-0.050                 +/-0.015 Radius (the larger one)   +/-1.0%           +/-0.5%                 +/-0.1% Surface Quality           60-40                 40-20              10-5 Irregularity               1/4 Lambda        1/8 Lambda         1/15 Lambda (Plano Surface)          or 0.5fr           or 0.25fr                 or 0.15fr Irregularity                1/2 Lambda        1/4 Lambda         1/8 Lambda (Cylindrical Surface)     or 1.0fr              or 0.5fr             or 0.25fr Centration(arc min)         +/-8                  +/-3                     +/-0.5   Note The surface quality data above is based on area of 20mm*20mm The irregularity data shown is based on per inch in dimension L. The data of centration is based on each 20mm in dimension L.