MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 135,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
  
LECO for Empowering Results
Schott VG20 Bandpass Filter
Categories: Ceramic; Glass; Optical; Filter

Material Notes: Offers several significant advantages: leading-edge inner quality and optical properties, excellent climatic resistance, high transmittance in the visible range of wavelengths and extra-high absorption in the near infrared (NIR) wavelength range. NIR cutoff filters are used for imaging sensors, as well as for night vision compatible equipment. Because of the growing miniaturization in all fields, NIR cutoff filters must now provide the same level of performance at smaller thicknesses. NIR filter glass, VG20, has been developed with high transmittance in the visible range of wavelengths and high absorption in the NIR range. This enables the optical designer to build much smaller cameras, laser goggles and night vision equipment. VG20 has also been designed to perform in difficult environments. Equipped with an additional coating, these filters remain completely transparent for more than 1000 hours without any surface corrosion and deliver extraordinary image quality.

Advantages:

  • Extraordinarily high NIR absorption and high transmittance in the visible range
  • Repeatable optical performance due to mass production
  • Excellent inner quality, e. g. low striae
  • Filters with specified coatings will resist heat and humidity for over 1000 hours
  • Allows for true color imaging
  • Easily coated and cleaned
  • Made in Germany (ITAR free)
Applications:
  • Medical
  • Imaging
  • Surveillance
  • NVIS (night vision)
  • Industrial applications

Information provided by SCHOTT.

Vendors:
Available Properties
  • Density
  • Thickness
  • Acid Class, SR
  • Alkali Class, AR
  • Stain Resistance Class, FR
  • CTE, linear
  • CTE, linear
  • Transformation Temperature, Tg
  • Refractive Index
  • Refractive Index
  • Refractive Index
  • Refractive Index
  • Transmission, Visible
  • Transmission, Visible
  • Transmission, Visible
  • Transmission, Visible
  
Property Data

This page displays only the text
of a material data sheet.

To see MatWeb's complete data
sheet for this material (including
material property data, metal
compositions, material suppliers,
etc
), please click the button below.

Manufacturer Notes:
Schott Glas Mainz

Category Notes
none

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

 

Elmet Technologies
Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at webmaster@matweb.com. We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2020 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.