A company seeks technology for casting ophthalmic lenses with a refractive index of at least 1.67, and Abbe of at least 37. Operating parameters would be to cast lenses at ambient conditions with low odor. Thermal or radiation cure is acceptable for polymerization of lens material, with radiation cure preferred. Click here to respond to this Tech Need .
A small (< 10 mm diameter), low-cost, externally controllable lens is being sought. The focal length of the lens should be continuously tunable with a time constant in the 30-ms range for the full tuning range. The variable lens objective should have a focal length of infinity to 50 mm, lens diameter of 3 to 10 mm, wavelength range of 1000 nm to 1600 nm, and control voltage below 5 V. Click here to respond to this Tech Need .
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