NTKJ (Nihon Tokushu Kogaku Jushi)

NTKJ Co., Ltd. develops high-quality, high-precision lightweight plastic lenses featuring a thin and efficient structure. From large articles to small we are the pioneer in sheet lens and sheet prism manufacturing.

We produce plastic optical products of just about any size, including Fresnel lenses, lenticular lenses, sheet prisms, linear Fresnel lenses, fly-eye lenses (microlens arrays) and aspheric lenses. We also produce diffraction gratings, optical roll molds, freeform surface lenses, and elliptical lenses, spheric and aspheric lenses, UV and IR lenses, and lightguide plates. 

NTKJ has the manufacturing expertise and equipment to accommodate a broad range of customer needs from prototype development to mass production.