Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

SCHOTT develops new manufacturing technique for its LASF35 glass

13.06.2008
Continuous production improves transmission for glass with high refractive index

Thanks to its extremely high index of refraction, LASF35 glass offers excellent properties for sophisticated lens systems used in tight spaces. By relying on a continuous production technique, SCHOTT has also optimized the internal transmission. Particularly within the blue wavelength region, this glass offers substantially better properties than comparable optical materials.


Ball lenses are used in the writing or reading heads of DVD/DVR systems, in micro technology or in fiber optics to couple or collimate optical light. With diameters of between 0.040 and 10 mm, SCHOTT AG manufactures ball lenses from various optical glasses and achieves coupling efficiencies of 75 %. Depending on the application, optical glasses such as N-BK7, but also highly refractive glasses like LASF35 with its unique refractive index of nd = 2.02, are put to use.

SCHOTT Advanced Optics, the optics division of the international technology company, will be unveiling an improved version of its LASF35 glass (nd = 2.02204; vd = 29.06) at the international trade fair “Optatec” in Frankfurt, Germany. In doing so, SCHOTT is optimizing its line of glasses that feature high refractive indexes in extreme regions of the Abbe diagram.

“Glasses with a high refractive index represent an important prerequisite for the increasing miniaturization of optical technologies,” notes Dr. Bernhard Hladik, Product Manager of Optical Glass at SCHOTT AG. “This improvement to our product portfolio will offer new potential for innovation for industrial lenses, medical technology, optoelectronics and laser technology, as well as related advanced technologies,” he adds.

LASF35 glass is particularly well-suited for miniaturized lens systems, such as those used as ball lenses or micro prisms in medical technology for endoscopes, microscopes and other micro lenses, for example.

When it comes to manufacturing, SCHOTT uses a continuous melting process and, therefore, achieves much higher internal transmission (63 % at 400 nm for a thickness of 10 mm; color code: 45/37) that truly outshines all other comparable glasses, particularly inside the blue wavelength region.

The new glass has been approved in accordance with the European Guideline 2002/95/EG (RoHS, Restriction of the use of certain hazardous substances in electrical and electronic equipment). SCHOTT is also planning to introduce a version called N-LASF35 that will be free of arsenic in the future.

SCHOTT is an international technology group that sees its core purpose as the lasting improvement of living and working conditions. To this end, the company has been developing special materials, components and systems for nearly 125 years. The main areas of focus are the household appliances industry, pharmaceuticals, solar energy, electronics, optics and the automotive industry.

The SCHOTT Group is present in close proximity to its customers with production and sales companies in all its major markets. The Group’s approximately 16,700 employees generate worldwide sales of approximately 2.1 billion euros. The company's technological and economic expertise is closely linked with its social and ecological responsibility. The parent company of the SCHOTT Group is SCHOTT AG, whose sole shareholder is the Carl-Zeiss-Stiftung (Foundation).

Contact:
SCHOTT AG
Christine Fuhr
PR Manager
Corporate Public Relations
Phone +49 (0)6131 / 66-4550
Fax +49 (0)6131 / 66-4041
E-Mail christine.fuhr@schott.com

Christine Fuhr | SCHOTT AG
Further information:
http://www.schott.com

More articles from Process Engineering:

nachricht Dresdner scientists print tomorrow’s world
08.02.2017 | Fraunhofer-Institut für Werkstoff- und Strahltechnik IWS

nachricht New technology for mass-production of complex molded composite components
23.01.2017 | Evonik Industries AG

All articles from Process Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Impacts of mass coral die-off on Indian Ocean reefs revealed

21.02.2017 | Earth Sciences

Novel breast tomosynthesis technique reduces screening recall rate

21.02.2017 | Medical Engineering

Use your Voice – and Smart Homes will “LISTEN”

21.02.2017 | Trade Fair News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>