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Ohara Corporation, Western Office

Ohara Corporation

Map23141 Arroyo Vista, Suite 200
Rancho Santa Margarita, CA 92688
United States
Phone: +1 949-858-5700
Fax: +1 949-858-5455
OHARA manufactures more than 130 environmentally safe optical glass types, free of both lead and arsenic. More than 300 tons of optical glass are melted per month, available in the following forms of supply: strip/block, cut and molded blanks, pressings, fine gobs, and high homogeneity blanks (made from near-UV transmitting i-Line High Homogeneity Glass). 

OHARA’s SK-1300 Fused Silica is ideal for semiconductor equipment, filters, and high energy laser applications. SK-1300 Fused Silica advantages include extremely low bulk absorption and fluorescence, no laser damage at 1070 nm, high transmission from UV through near IR, high homogeneity, and low stress birefringence. Blank sizes range from 1 inch to 1 meter diameter. 

Often made with SK-1300 Fused Silica are OHARA’s double-side lapped Polished Substrates with low surface roughness and excellent flatness. Sizing for polished substrates ranges from 150, 200 & 300 mm diameter × 0.5-5mm thick and other custom sizes. 

OHARA also manufactures CLEARCERAM®-Z an Ultra Low Expansion glass with excellent CTE uniformity and blank forms up to 1.8 m in diameter. Other products include NANOCERAM, Glass-Ceramic Substrates (WMS™-15, GD-FHT, and LICGC), UV and Infrared materials (germanium, silicon, zinc sulfide, sapphire, and more), and Optical Crystals (CaF2, BaF2, and more).

Ohara Corp’s focus on quality and customer satisfaction has allowed it to become a key supplier of all its products to many cutting-edge companies in the following fields: aerospace, astronomy, telecommunications, data storage, military, microlithography, and much more. Please note Ohara Corp is a subsidiary of Ohara Inc. (located in Sagamihara, Japan) and has a West Coast office in Rancho Santa Margarita, California and an East Coast office in Branchburg, New Jersey. Please contact us at [email protected] with any inquiries or questions. 

products from Ohara Corporation fused silica from Ohara Corporation advanced products from Ohara Corporation polished substrates from Ohara Corporation
Established: 1981
Ownership type: Privately Owned
Brion Hoffman, President
Robert Lee, Director of Sales
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