Nikon glass is made in the wholly owned subsidiary Hikari Glass

Hikari-Glass-Nikon-factory

Recently there was some discussion on NikonRumors about whether Nikon still makes its own glass, spurred on by the new Nikon lens making videos. A reader did some research and sent me the information included in this post (thanks J). It turns out that Nikon's wholly-owned glassworks, which is its own business called Hikari Glass (Mitsumatanagadan 141 Komagatacho, Yuzawa, Akita Prefecture, satellite image of the factory), is quite the maker of optical materials:

Hikari Glass Nikon (2)

The "raw" glass material before it's cut out (pictures credit: freshakita.exblog.jp)

Hikari Glass Nikon (3)

This is the "glass molding" mashine

Hikari Glass Nikon (4)

The glass is cooled after is being cut

Hikari Glass Nikon

Different stages in the lens production (final polished lens in the middle)

Here are some related links:

This Nikon Optical Materials brochure contains more information on the different types of glass and technologies used (click on images for larger view):

Nikon-Optical-Materials-brochure-(1)   Nikon-Optical-Materials-brochure-(2)

Nikon-Optical-Materials-brochure-(3)   Nikon-Optical-Materials-brochure-(4)

Nikon-Optical-Materials-brochure-(5)   Nikon-Optical-Materials-brochure-(6)

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