Nittoh has over 20 years experience injection molding optical lenses. We have established a system that allows us to handle all processes of manufacture, from plastic lens optical design to mold design and manufacture, lens molding, thin film coating and quality assurance.
Optical lenses have to deliver solid performance when assembled into lens units, so we have to consider the properties of the resin material and the usage environment in order to achieve the desired performance. The field of optical molding requires advanced molding technologies, and Nittoh is highly regarded in this field. The quality of Nittoh’s products is a direct result of our integrated manufacturing processes for everything from lenses to lens units. Discover that quality for yourself.
High precision molding of aspherical lenses, prisms, viewfinders
Nittoh has mastered advanced mold design and manufacturing technologies, and the characteristics of various plastic materials, in order to deliver a range of injection molded products. From various aspherical lenses to prisms and viewfinders, these products exhibit superior optical characteristics that enable us to deliver high precision and high cost efficiency.
High precision glass lens molding
Nittoh’s glass molding technologies utilize the superior properties of glass lenses while enabling mass production of aspherical lenses. Using our unique molding technologies, we are able to deliver high precision glass molded lenses.
Aspherical hybrid 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 Nittoh.
High performance, high durability coatings achieved through unique thin film resin application technologies
Thin film coating technologies for plastic resins enable high precision and high durability. Nittoh has developed unique technologies that enable quality and durability that exceed the levels possible with conventional resin coating technologies.
High precision molded products enabled by optical molding quality
Nittoh manufactures high precision molded products that require high precision quality, like automotive lamp reflectors and camera lens barrel components. Together with high precision molding, Nittoh delivers high value-added through our advanced thin film technologies producing high-reflection, water repellent and other coatings.
Two-color/two-material molding technologies established using general-purpose injection molding machines
Using unique injection molding technologies, we have succeeded in simultaneous integral molding of two dissimilar materials. The special construction of an injection unit for the second material enables us to use a single general-purpose molding machine even with materials that have differing characteristics.
Production equipment with the flexibility for everything from small lot to mass production
Nittoh naturally has the production capabilities for injection molding, but we have also established an in-house system that includes all the inspection systems necessary for optical components. From small lot production to mass production, you can safely trust your project to Nittoh.
4529 Konami, Suwa City, Nagano Prefecture 392-0131 Japan