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02-04-2013, SCHOTT North America

SCHOTT Exhibits Optical and Laser Component Innovations at SPIE Photonics West

SCHOTT’s products and specifications include an anti-fingerprint and anti-glare coating for touchscreens, flexible glass, new optical materials for high-power applications, and new blue filter glass
A SCHOTT ZERODUR® open-back mirror blank with 90 percent weight reduction.
A SCHOTT ZERODUR® open-back mirror blank with 90 percent weight reduction.

San Francisco (CA, USA), February 5, 2013— SCHOTT will exhibit and present at SPIE Photonics West, showcasing a number of its solutions that aid the design of optical and laser applications, including, its fingerprint- and glare-resistant CONTURAN® Durable Anti-Reflective Oleophobic (DARO ) coating for touchscreens; and an extremely lightweight ZERODUR ® mirror blank. From product demonstrations at booth #1600 to a number of presentations, SCHOTT will offer attendees an inside look at its latest accomplishments as well as its most useful optical and laser components. Highlights include SCHOTT’s new data on the laser damage threshold of bulk materials and surfaces, a new BG62 blue glass filter, and the world’s thinnest glass.

Lean filters, coatings, and lamination glass

SCHOTT has developed the groundbreaking durable anti-reflective and anti-fingerprint CONTURAN® DARO coating with oleophobic characteristics suitable for any professional touch application.

In addition, SCHOTT has produced the world’s thinnest glass, at just 25 mm thick. Flexible and reliable, it will be available even on a roll. In thicknesses up to 100 μm, the established glass types AF 32 eco and D 263 T eco open up new options for lamination applications, touch panel sensors, and electronic components.

SCHOTT has also further extended its broad portfolio of optical filter glasses with a new blue filter glass. BG62 is 0.21 mm thin and reaches its 50 percent transmission value (T50%) at 644 nm. It adds to the recently introduced BG60 and BG61 that have their T50% at 633 nm and 647 nm at 0.3 mm thickness. Customized solutions are also available. SCHOTT’s blue glass filters are extremely climate resistant and improve the quality of high-resolution digital imaging products such as smartphone cameras.

Laser-resistant components

SCHOTT took a closer look at the fairly undetermined bulk laser damage threshold (LDT) of the most suitable optical materials, and devised two alternatives to fused silica. N-BK7 and N-FK5 operate at wavelengths of 532 nm and 1064 nm and pulse lengths in the pico- and nano-second range. Further materials were also examined. SCHOTT will share the results, which complete the glass types’ characterizations for facilitated lens design, in a presentation titled “ Recent Results on Bulk Laser Damage Threshold of Optical Glasses .”

In addition to the bulk material properties, a component’s polishing and coating play major roles in determining laser resistance. SCHOTT’s in-house finishing capabilities include polishing down to 10-5 scratch-dig laser grade surface quality and up to λ/10 in terms of surface flatness. The anti-reflection (AR) and highly reflective (HR) coatings have a LDT exceeding 1.5 GW/cm². Platinum-free active and passive laser glass components are supplied in various forms, including rods, discs, slabs, or prisms. They are stria-, bubble-, and inclusion-free to provide best optical quality.

Mirror blanks

SCHOTT’s extremely lightweight ZERODUR® mirror blank has unprecedented performance data. With a diameter of 1.2 m, a parallel face sheet of 8 mm, a rib thickness down to 2 mm and a weight of only 45 kg, it is the first open-back mirror to achieve close to 90 percent weight reduction. The unequalled thermo-elastic properties of SCHOTT’s ZERODUR® product meet the most demanding opto-mechanical requirements for space-bound missions and other extreme applications.

The zero-expansion glass ceramic is available in tight coefficients of thermal expansion (CTE grades). For temperature ranges between 0 and 50 degrees Celsius, SCHOTT’s ZERODUR® Extreme product offers the tightest CTE on the market with 0 ± 0.007 ppm/K, while SCHOTT’s ZERODUR® Special product is available with a CTE of 0 ± 0.010 ppm/K. Modifiable to suit specific temperature profiles, SCHOTT’s ZERODUR® Tailored productis customized to specific temperature profiles, significantly benefitting any applications where highest precision is key.

Visit SCHOTT at booth #1600 and attend the following lectures and product demonstrations:

  • Optical Materials for Microscopy Design
    Glass with large anomalous partial dispersion and low dispersion for best color correction-high transmittance glass improves light transmittance at the UV-edge—pure raw materials for low fluorescence.
    Sunday, 3 February 2013, 11:30 a.m.
    BiOS, Demo Area
    Dr. Ralf Jedamzik, SCHOTT Advanced Optics
  • Recent Results on Bulk Laser Damage Threshold of Optical Glasses
    Project for characterization of bulk LDT of optical glasses at wavelengths 532 nm and 1064 nm with pulse lengths in the nano- and pico-second range. Description of measurement approach and presentation of results.
    Tuesday, 5 February 2013, 4:20 p.m.
    LASE, Room: 124, Exhibit Level
    Dr. Ralf Jedamzik, Frank Elsmann, SCHOTT Advanced Optics
  • ZERODUR® Goes Extreme
    ZERODUR® Extreme glass-ceramic offers the tightest CTE tolerance on the market. ZERODUR® Tailored glass-ceramic is optimized to final application temperature profiles. An ultra-light weighted 1.2 m ZERODUR® piece will be on display.
    Wednesday, 6 February 2013, 3:30 p.m.
    Photonics West, Demo Area 1 at South Hall ABC
    Dr. Ralf Jedamzik, SCHOTT Advanced Optics
  • Perfect Filters and Designs for Demanding Customized Applications
    Portfolio extension including new filter glass sets, interference filters, and new designs, and introduction of new filter calculation program and catalog.
    Thursday, 7 February 2013, 11:30 a.m.
    Photonics West, Demo Area 1 at South Hall ABC
    Dr. Ralf Biertuempfel, SCHOTT North America Inc.
  • Laser Damage Threshold of Optical Components
    Laser damage threshold of components depends on surface quality and material properties—we now define this threshold of optical glass and present data on high reflective broadband coatings and components.
    Thursday, 7 February 2013, 2:30 p.m.
    Photonics West, Demo Area 1 at South Hall ABC
    Dr. Todd Jaeger, SCHOTT North America Inc.

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Further information
SCHOTT North America
Matthew Kraft
555 Taxter Road
Elmsford, NY 10523
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