Photonics Buyers' Guide / Molded Blanks

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Molded Blanks

A molded blank is a blank whose basic surface curves are attained by heating and forming a given weight of raw glass; a rough glass blank resembling the finished lens in size and shape. After molding, a precision lens blank must be fine-annealed to eliminate strain and to restore the refractive index to its stable maximum value.

www.oharacorp.com

Ohara Corporation, Western Office - Rancho Santa Margarita, CA
Precision optical glass: strip, blanks, pressings, polished balls, near-UV transmitting i-Line glass, ceramic substrates, CaF2, UV/IR materials, quartz, fused silica (std./excimer grade), Nanoceram. Ohara CCZ ultralow expansion (excellent CTE uniformity, blank form, to 1.8 m diam). Double-side polished substrates (low surface roughness, excellent flatness).

• Established in 1981
• Privately Owned

• Custom Manufacturer

www.gsoptics.com

GS Plastic Optics - Rochester, NY
GS Plastic Optics works with program leaders on complex optical challenges by providing polymer optics designed specifically for improving our customers' market share and competitiveness. We offer innovative solutions, including custom injection molding and SPDT, to companies with precision polymer optic requirements.

• Established in 1916
• 100,000-sq ft facility
• Privately Owned

• Stock Manufacturer

www.oharacorp.com

Ohara Corporation, Eastern Office - Branchburg, NJ
Manufactures precision optical glasses: strip/slab, blanks, fine gobs, polished ball lenses, near-UV transmitting i-Line glass, ceramic substrates, CaF2, UV/IR materials, quartz, fused silica (std./excimer grade). Ohara CCZ ultralow expansion (excellent CTE; large size). Nanoceram. Double-side polished substrates (low surface roughness, excellent flatness).

• Established in 1981
• Publicly Traded Stock

• Custom Manufacturer

Advanced Glass Industries - Rochester, NY
• Established in 1944
• 48 employees
• 46,000-sq ft facility
• Privately Owned
• Custom Manufacturer

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Average Number of Employees: 173

The Photonics Buyers' Guide is a comprehensive resource for verified providers of Molded Blanks. Profiles and contact information for manufacturers and suppliers are provided by the companies and verified by our editors. If you have updated information about any of the organizations listed, please contact us.

Glossary

molded lens A lens with one or both sides fire-polished to its final surface. Lenses for condensers and viewfinders often are made in this way, an aspheric surface being as easy to mold as a sphere.
molded blank A blank whose basic surface curves are attained by heating and forming a given weight of raw glass; a rough glass blank resembling the finished lens in size and shape. After molding, a precision lens blank must be fine-annealed to eliminate strain...
optical blank A casting consisting of an optical material molded into the desired geometry for grinding, polishing or, in the case of optical waveguides, drawing to the final optical-mechanical specifications.

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