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So why wake up before the crack of dawn? IR publisher Dave Etchells and I had the extremely fortunate opportunity to get a very unique and exclusive tour of Canon's Utsunomiya Office, home to one of the company's primary manufacturing plants, and the birthplace of all L-series lenses, Cinema EOS lenses as well as one of the their main R&D facilities. Canon has never before offered the press nor the public a tour of their factory with this much access to behind-the-scenes, proprietary processes.
And they even allowed us to take photos! Needless to say, despite the early morning grogginess, we were pumped. The tour began with a round of introductions with Canon executives and factory staff. Utsunomiya factory manager Kenichi Izuki and his 'Takumi' production experts greet us at the factory.
Izuki-san is in the foreground, third from the right. (First on the right is Yuriko-san from the ICB Optical Products Planning Department, next to the left is Shogo-san, from the same department.) Canon's Takumi experts are the extremely highly skilled craftsmen and craftswomen that know and understand the most intimate details of what goes into making a Canon lens. Takumi means 'master craftsmen' in Japanese, and to become one takes years of training. One of these lens-assembly 'meisters' is capable of assembling any of a number of lenses from raw parts, and it can literally take decades for someone to become a lens-polishing Takumi. According to Canon, one must have at least 25 years of experience learning the craft of lens design and manufacturing processes before becoming a meister. In typical Japanese fashion, everything was planned to a 'T', even down to our shoe sizes. Obviously designed for highly sensitive technology, it's no surprise that the factory has some strict anti-dust and anti-static requirements.
All throughout the main facility areas, we were required to wear special anti-static footwear (seen above). In the assembly and testing areas, we had another set of special clean-room slippers for just those areas. We were also required to wear lab coats, hair and face masks as well as walk through an air shower to blow dust and other particles off of us before entering that section of the factory.
Even the delivery trucks in the shipping area have to carefully back up to narrow doors in the loading docks and create a kind of seal with the building so no outside air enters the facility. Takumi Toshi Saito demonstrates the process of hand-shaping a master template used to make the diamond-grit grinding tools for lenses. The piece in his hand is a heavy polishing jig, this particular one weighing around 30 pounds (15kg), with diamond grit on the inside. The little plugs on the jig that he's grinding define the surface that the final tool will have. They have to be ground to within a tolerance of 30 nanometers (30 millionths of a millimeter).
The tool he's using to do the hand-grinding doesn't exactly match the final target profile; Saito-san tweaks and adjusts the shape of the forming jig by adjusting the pressure as he slides the grinding tool over the jig. Canon Imageclass Mf4412 Scanner Software Free Download. Hp Colorado Backup Ii V9.1 Download. Normally, the jig is rotating while he does this, requiring a complex dance of pressure, angle, distance and timing. Download Game Java Real Football Manager 2015 Untuk Hp Nokia Murah. It was mind-boggling to us that someone could hand-grind something to tolerances in the millionths of millimeters.
Here's a look at a different set of tooling, this one used to produce a lens that's ultimately concave. On the far left, having the exact opposite curve of the final lens, is a mirrored prototype standard replica, that the tooling will be made to duplicate. The original prototype standards (which have the same shape as the final lens) are carefully stored away for use as master reference standards and not used during the actual production process; the mirrored prototype standard replicas are what's used on a production basis. We expected that the mirrored replica would have initially been machined to an approximate shape before final hand-tuning, but were told that its fabrication is entirely manual. Saito-san is holding a measuring instrument here that he uses to check the shape of the intermediate jig or diamond plate, with the diamond plate itself in the middle.
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