Optical Glass & Sculptural Glass
Our partner NHG, Hubei New Huaguang Information Materials Co., Ltd., located in Xiangfan, China, is one of the largest manufacturers of optical quality and infrared chalcogenide glass in the world with an annual production of over 6,000 tons. NHG has been producing glass since 1969 and is ISO9001:2000 & ISO9001:2015 & GB/T19001-2016 certified. NOC stocks a variety of glass types & sizes for component manufacturing and artistic use.
Experts in glass technology
NHG offers over 180 glass types including more than 150 RoHS-compliant, 8 traditionally leaded types, over 20 low-Tg materials for precision molding and 12 unique infrared chalcogenide glass types. NHG is fortunate to draw on the services and expertise of Dr. T. Izumitani, the world’s foremost expert in optical glass technology. He has been instrumental in advancing the process capabilities and quality of NHG glass. NHG also has an established joint-venture with Ohara Inc. for OEM production of optical glass.
All glass materials undergo rigorous quality examination for:
- Index of refraction
- Bubbles and inclusions
- Internal stress and birefringence
- Internal transmission
- Size uniformity
Standard strip sizes range from 100-200mm in width, 10-150mm in thickness and standard lengths of 300-400mm. We also produce round and rectangular extruded bars.
Glass Blanks
Direct-Pressed Blanks
Direct-pressed blanks are formed directly from the melting tank and are the most economical solution for high-volume production of optical components. Lens and prism blanks are produced in sizes from 10-100mm or 20-350g.
Re-Heat Pressed Blanks
Glass strip is cut and processed into accurate and uniform gobs for molding into custom shapes and sizes ranging from 5-300mm.
Fine Gob
We offer a selection of special glass types that are suitable for precision lens molding. These glass types are designated by a prefix “D-“.
