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        HOME >PRODUCT DISPLAY >PRODUCT DETAIL
        PRODUCT PIC
        Lens
            Lens can converge or diverge the transmission beam and form image of the object, which is widely used in various applications. CEYSTIK can provide all kinds of spherical and cylindrical lenses, usually we can offer.
        • DETAIL
        • STANDARD PRODUCT
        • BASIC PROPERTIES
        • Spherical: plano-convex, plano-concave, double-convex, double-concave, meniscus, dome lens, rod lens, ball lens, half ball
          Cylindrical: plano-convex, plano-concave
          Mixture: one side spherical, the other side cylindrical! We can offer!
          Assembly: doublet, triplet, customer designed special lens kit
          Usually lenses are not only used in visible band, but also in IR band and UV band, that means special material should be used. Now, Crystik can offer lenses made of various materials such as CaF2, MgF2, Sapphire, Silicon, Germanium, ZnSe and etc. Crystik can also provide various coatings for lenses upon your request.


        • Spherical Lens Specifications


          Dimension Tolerance

          +0/-0.2mm

          Thickness Tolerance

          ±0.2mm

          Radius Tolerance

          ±0.5%

          Surface Quality

          60/40 scratch and dig

          Power([email protected])

          3

          Irregularity([email protected])

          0.5

          Centration

          <3 arc minutes

          Focal Length Tolerance

          ±2%

          Clear Aperture

          >90%

          Chamfer

          Protective<0.5mmx45deg

           

          Cylindrical Lens Specifications


          Material

          BK7, Fused Silica

          Design Wavelength

          632.8nm

          Dimension Tolerance

          +0/-0.2mm

          Thickness Tolerance

          ±0.2mm

          Surface Quality

          60/40 scratch and dig

          Power([email protected])

          3

          Irregularity([email protected])

          0.5

          Centration

          <3 arc minutes

          Focal Length Tolerance

          ±2%

          Clear Aperture

          >90%

          Chamfer

          Protective<0.5mmx45deg

          Achromatic Lens Specifications


          Material

          Optical Glasses

          Design Wavelength

          480, 546.1, 643.8nm

          Dimension Tolerance

          +0/-0.2mm

          Thickness Tolerance

          ±0.2mm

          Surface Quality

          60/40 scratch and dig

          Power([email protected])

          3

          Irregularity([email protected])

          0.5

          Centration

          <3 arc minutes

          Focal Length Tolerance

          ±2%

          Clear Aperture

          >90%

          Chamfer

          Protective<0.5mmx45deg

          Coating

          Single layer MgF2 coating @550nm

        • NO TIME
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