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Latest update: 14/01/2020 14:19:30

Crystal Optics Inc.

We conduct super-precision machining based on our integrated production system. We can also apply super-precision coatings.

Our company focuses on five main business fields (cutting, grinding, polishing, super-precision processing, and measurement) with super-precision being the key. We started our machining business in 1985, working out of a garage. Now we handle super-large components of up to 8,000 mm. One of our main strengths is our “die coater” system that realizes uneven coating. We can apply high-precision coating with a deviation of 2% to 5% of the coating film, which is the most important part of thin liquid crystal or film production technology. When customers show us their drawings, we listen carefully to what they have in mind and then we turn their idea into reality.

Inquiry
Main image

Sales Pitch

Large high-precision die production
Our extensive know-how realizes high-precision dies. We make dies in various shapes and levels of precision.
•Based on a single sheet of drawing, our company can operate an integrated production system covering material procurement to processing and measurement.
•We can process long works with sizes up to 4,000 mm.
•We are particular about not only processing machines but also measuring instruments. We guarantee the accuracy of long products using Carl Zeiss 3D measurement instruments that measure up to 6,000 mm.
Making high-precision free-form curved parts that change the concept of optical design
High-precision free-form optical components are indispensable for head-up displays that show vehicle speed and navigation information on the windscreen and compact projectors that enable projection at extremely close distances. Our company has been able to provide large, high-precision free-form optical parts in a short time at reasonable prices through high-speed production, by directly cutting aluminum or resin materials.
Slow-tool-servo machining realizes a free-form surface mirror having a large diameter and high precision.

Slow-tool-servo machining is a method of making an asymmetric curved surface (a free-form curved surface) on the rotation axis, by synchronizing the rotation angle of the spindle (C axis) with the tool coordinates (XZ axis). In crystal optics, the method is applicable up to a maximum diameter of φ800 mm.
Mirror polishing technology
Surface finish at the nano level. It can be applied to a wide range of materials, from single crystals to metals, ceramics, and resins.
We are also proficient with aluminum, copper, and deliquescent single crystals, which are soft materials. Regarding the processing environment, we have a clean room and dry room to create a surface roughness that satisfies customers.

Other presentation

[Company strength]
We have years of experience dealing with a large variety of materials and we have established an integrated production system covering everything from procurement of materials to machining and measurement. Our excellent quality products are offered to a wide range of industries including semiconductor, liquid crystal, optics, aircraft, space, and analysis. We conduct thorough temperature control in our factories and manufacture products under the same environment to realize “high-precision machining.” We also have an internal system for meeting short delivery requests. We have an array of measuring equipment including a large Carl Zeiss coordinate measuring machine to ensure high quality.

[Business description]
Our company focuses on five main business fields (cutting, grinding, polishing, super-precision processing, and measurement) with super-precision being the key. We handle a variety of materials including metals, non-metals, and ceramics, as well as single crystals. In our early days, we machined small parts that could fit in a palm. Today, we have the equipment to machine parts as large as 8,000 mm. We have also developed our own integrated production system to realize very high-precision machining.

[Industry]
Manufacturing and precision polishing

[Strength of products/technologies]
Super-precision machining technology that satisfies nanometer standards: We guarantee straightness of 1 μm and surface roughness of Rz 0.05 or under (both SUS and cemented carbide) in the production of dies for die coaters.
Industry’s largest class machining size: Cutting – 4.25 m wide × 8 m deep × 1.9 m high with five-sided machining equipment; plane grinding – 2.5 m wide × 5 m deep; polishing – 3.2 m in dia.; super-precision machining – 0.7 m in dia.
Material: We handle metals, non-metals, Invar and other difficult-to-handle materials, as well as single/multiple crystals, and highly deliquescent materials.
Measurement: We measure coordinates up to 3 m (W) × 6 m (D) × 2 m (H) as well as surface roughness and circularity.


[Representative's message]
To expand our sales channels, we participate in many exhibitions including high-performance film exhibitions featuring die coaters, which is one of our strengths. In addition, we actively participate in related academic gatherings, work on the development of elemental technologies, and refine our processes through state-of-the-art machining technology to meet our customers’ needs.



[Company structure for market development/overseas expansion]
Our sales manager responds to inquiries from major companies. Inquiries of a more technical nature are handled by our staff in the manufacturing division and technical development division. We have in-house staff capable of conversing in English and Chinese.

[Market share/Ranking]
60–70% (based on our own survey; details cannot be disclosed due to confidentiality reasons)

[Awards and media coverage]
[Awards]
Selected as one of 300 of Japan’s Vibrant Monozukuri (Manufacturing) SMEs (2007); selected as one of Monozukuri New Selections in Kansai (2015)
Received the Special Award of the 6th Monozukuri Japan Award (2015)

[Media]
“One Engineer Suffices,” Venture Link (April 2010); “Even if you can’t do it, believe you can do it and make utmost effort to do it,” Rinen-to-Keiei (January 2011)


[Authorization/Certification]
ISO 9001 (Kyoto Factory), JIS Q 9100 (Kyoto Factory)
ISO 14001 (Head Office Factory and Otsu Factory)



[Joint research and development]
Patent disclosed: Polishing Device (Tokkai 2012-240153), and 12 other patents

[Main Clients / Business History (domestic)]
We receive orders for large die-coated and mirror-finished parts from manufacturers of semiconductor production equipment and manufacturers of liquid crystal panel production equipment. We are unable to disclose company names due to confidentiality agreements.

[Main Clients / Business History (overseas)]
We receive orders for large die-coated and mirror-finished parts from manufacturers of semiconductor production equipment and manufacturers of liquid crystal panel production equipment. We are unable to disclose company names due to confidentiality agreements.

This company is recommended by the following support organizations.

Kansai Head Office, SMRJ
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