SCHOTT introduces BG6x HT Blue Glass filters with significantly higher transmittance in the visible spectrum

Date: 18 June 2014

Successful introduction of BG6x filters: leading international smartphone manufacturers rely on SCHOTT quality - The international technology company SCHOTT has expanded its portfolio of standard BG6x Blue Glass filters and is now introducing BG6x HT high transmission blue glass filters with improved performance. The new filter variants offer an excellent transmission profile for high quality digital camera applications: significantly higher transmission in the visible spectrum by up to 2 percentage points at 0.21 mm material thickness while still providing high blocking in the IR range.

SCHOTT’s new BG6x HT filters are therefore well-suited for photography in challenging light conditions. SCHOTT is showcasing its Blue Glass filters at the OPTO Taiwan trade show (June 17-19, booth N393).

“We have successfully entered the fast-growing international smartphone market in the last two years. Our Blue Glass filters (BG6x) are being used in the digital cameras of smartphones by several large international mobile device producers. With our new product family of HT filters we are confident that we are providing our customers with the right material for their future applications,” says Andreas Haedrich, Sales Director EMEA at SCHOTT Advanced Optics.

SCHOTT’s BG6x HT high transmission blue glass filters with improved performance: The new filter variants offer an excellent transmission profile for high quality digital camera applications. Photo: SCHOTT.

The filters of the specialty glass manufacturer SCHOTT are built into image sensors of high-tech cameras and boast several advantages over other materials available to date. The HT variants of the BG6X glasses offer significantly higher transmittance in the visible spectrum. “At a material thickness of 0.21 mm, the most widely used thickness for digital cameras, we were able to improve the transmittance by up to 2 percentage points. Photos taken with such a filter in low-light situations will result in less image noise and overall better picture quality,” Haedrich states. At a material thickness of 1.0 mm, the improvement of the transmittance is as high as 7 to 8 percentage points.

SCHOTT’s standard BG6x family as well as the new BG6x HT series also offer excellent climatic resistance for challenging environments. The Blue Glass filters are of a high internal quality, resulting from an extremely low-volume striae level and an extremely low bubble and inclusion level. Thanks to excellent production stability, the filters are also highly reproducible, with consistent transmission values and a constant refractive index from lot to lot and from melt run to melt run.

“We also offer customized solutions for special applications and are looking forward to speaking with interested partners,” Haedrich adds.

In addition, the material from SCHOTT offers a high bending strength of 120 MPa in the standardized and well-known 4-point-bending test, allowing processing companies to easily and safely include the BG filters into their production processes. Furthermore, the BG6x filters are environmentally friendly and free of hazardous substances antimony, cadmium, lead and chrome. Test reports by the internationally renowned company SGS substantiate this and are available upon request for all BG filters.

The new BG6x HT series: SCHOTT improved the transmittance of its Blue Glass BG62 HT in the visual range by up to 2 percentage points at a material thickness of 0.21 mm. Source: SCHOTT.

For more information, please visit:

http://www.schott.com/advanced_optics/english/syn/advanced_optics/ products/optical-components/optical-filters/nir-cutoff-filters/index.html?tab=tabs-239396-5

SCHOTT is an international technology group with 130 years of experience in the areas of specialty glasses and materials and advanced technologies. SCHOTT ranks number one in the world with many of its products. Its core markets are the household appliance, pharmaceutical, electronics, optics, and transportation industries. The company is strongly committed to contributing to its customers’ success and making SCHOTT an important part of people’s lives with high-quality products and intelligent solutions. SCHOTT is committed to managing its business in a sustainable manner and supporting its employees, society and the environment. The SCHOTT Group maintains close proximity to its customers with manufacturing and sales units in 35 countries. Its workforce of 15,400 employees generated worldwide sales of approximately 1.84 billion euros for the 2012/2013 fiscal year. SCHOTT AG, with its headquarters in Mainz (Germany) is owned by the Carl Zeiss Foundation.