News | November 29, 2017

S. I. Howard Glass' 20,000 Sq. Ft. Inventory Of Flat Glass Substrates For Precision Optics

S. I. Howard Glass’ 20,000 Sq. Ft. Inventory Of Flat Glass Substrates For Precision Optics

Company will showcase flat glass wafers, filters, windows and substrates at SPIE’s Photonics West, Moscone Center, San Francisco, Jan. 30 - Feb. 1, 2018, in booth #4669.

WORCESTER, Mass. - S. I. Howard Glass Co., Inc.a premier supplier of high quality glass substrates and fabrication services for the precision optics industry, announces its 20,000 square foot glass inventory capacity at the company’s U.S. facility. The company is distinguished for its wide variety, large volume, and extensive selection of sizes and thicknesses of raw materials from prime glass manufacturer brands. These include SCHOTT, Hoya, Corning, Pilkington, Glaverbel, Guardian, Saint-Gobain, and Euroglas. As a leading domestic provider of flat glass substrates, Howard Glass is able to deliver custom flat glass products, instruments, and parts with competitive pricing and short lead times. 

In-house services available include glass fabrication, such as computer numerical control (CNC) milling and edging using Haas Automation and Blanchard equipment; grinding and polishing with SpeedFam’s double- and single-sided machines (up to 15 inches); scribe and break using TLC’s Phoenix scribing machines; precision dicing utilizing Kulicke & Soffa (K&S) and Disco equipment; frosting and sandblasting employing SpeedFam’s single-sided lapping machines and large sandblast cabinet; drilling with Branson’s ultrasonic drill; beveling by hand and using ultra-precise CNC machinery; and tempering.

To learn more about S. I. Howard Glass Co.’s full line of flat glass substrates, flat glass instrumentation, parts, and quick turnaround glass fabrication services, please stop by booth #4669 at SPIE’s Photonics West, Moscone Center, San Francisco, Jan. 30 - Feb. 1, 2018. For more information about the company’s custom fabrication capabilities, please visit: To view the company’s library of data sheets, please go here:


Founded over 75 years ago, S. I. Howard Glass Company, Inc. (Worcester, MA - is a leading provider of glass substrates, custom glass fabrication, filters, and windows for the optics and related industries. With an extremely large inventory of raw materials (20,000 sq. ft.), and vast selection of sizes and thicknesses (from 0.1 mm up to 16 mm), we are renowned for our quick turnaround and unique optical solutions. Our computer-aided design (CAD) and computer-aided machining (CAM) experience combines with our expertise in processing glass materials to provide high-quality optical components. We can fabricate parts quickly and with a remarkably high degree of accuracy (+/- .002 inches) and fabricate as thin as 0.1 mm (0.004 inches).  We are a flexible and solution-oriented company with a commitment to outstanding customer service and competitive pricing.

SOURCE: S. I. Howard Glass