Specialty Glass Products, Inc. - Willow Grove, PA (Serving Delaware)
Manufacturer, Custom Manufacturer, Service Company
Custom manufacturer of optical glass & filters used for passing light wavelengths. Non-crystalline filters are available in various sizes, shapes & surface finishes. Glass filters are made from inorganic mixture of chemicals fused by heating with silica, boric or phosphoric oxides. Types of filters include band, long & short pass & neutral density & conversion filters. ISO 9001:2000 compliant.
www.sgpinc.com/filterglass.htm

Homalite - Wilmington, DE
Manufacturer, Custom Manufacturer
Custom manufacturer of display filters made from optical plastics including thermosetting polyester. Specifications of filters include 86 percent to 89 percent transmission, 1.55 & 1.56 refractive index, 1.23 g/cu.cm & 1.38 g/cu.cm density, 3850 psi to 8000 psi tensile strength, 20,000 psi & 26,000 psi compressive strength, 1.5 & 2.4 percent elongation, 6,000 psi to 86,000 psi yield strength & 183 degrees F to 220 degrees F continuous heat resistance. Display filters are available in various colors & models. Display filters are available with variety of coatings & silk-screening. UL 94HB listed.
www.homalite.com/display.htm

Accina, Inc. - Newark, DE
Custom Manufacturer, Manufacturers' Rep
Manufacturer Rep. of prescion optic & laser crystal equipment.