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Aspherical Hybrid Lenses　　Combining characteristics of glass lenses with processing accuracy of plastic lenses

Hybrid lenses are fabricated by using a UV-curable resin to form an aspherical surface on a spherical glass lens. The manufacture of these hybrid lenses, which combine the durability of glass lenses with the advanced performance of aspherical lenses, is another field of specialization for the optics master Nittoh.
We have established production technologies for manufacturing everything from small diameter to large diameter hybrid lenses. Hybrid lenses enable more compact and higher precision design that in the past, which has enabled the manufacture of higher performance products for applications such as digital cameras, still cameras, CCD lenses, imaging, and laser optics.

Machining range 6mm to 70mm in diameter, concave or convex (hybrid on both surfaces is possible)
(Center resin thickness: 0.05 to 0.2mm)
Resin thickness variability: 5 to 6 times (compared to thinnest part)
ApplicationsLens for projector, lens for DSC, etc.
Reliability testsHigh temperature test
High temperature, high humidity test
Low temperature test
Cycling test
Aspherical surface accuracy
PV: 0.30 (design), 0.25 (best fit)
Hybrid lens coating
High durability, low reflectance, high transmission coatings are possible



Molding Machines
Automatic hybrid lens molding machine (5-30mm dia.)
Manual hybrid lens molding machine (30mm and greater dia.)