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A viewport, sometimes referred to as a window, is an optical component that provides a means for visual, optical or broad-band energy transmission in and out of a vacuum system.

There are two types of viewports offered, zero-length and tubulated. A zero-length viewport has a thickness no larger than that of its mounting flange. This makes it easier to protect from accidental damage as there are no parts protruding from the mounting flange. It also allows for the best angle of view.
Unit of Measure

Specifications

Brands

 N/A Ceramaseal®

Flange Size

 N/A 4-1/2 in

Temperature Range

 N/A -269 to 450 ºC

Transmission Range (80 % Minimum)

 N/A 0.25 to 4 µ

Internal Pressure

 N/A 1 x 10-10 Torr

Pressure at 20 Degree Celsius (ºC) Temperature

 N/A 50 psig3.4 bar

View Diameter

 N/A 1.94 in49 mm

Installation

Installation

 N/A ConFlat Flange

Installation Size

 N/A NW63CF

Material

Housing Material

 N/A 52 Nickel Iron

Optic Material

 N/A Sapphire

Magnetic Material

 N/A true

Extreme/Custom Design

Extreme/Custom Design

 N/A
  • Double viewports
  • Viewing diameters exceeding 7 inches
  • Internal pressures to 80,000 psig
  • RF applications and special configuration requirements

Applications

Applications

 N/A A few of the many applications in which these viewports are commonly used are:
  • Semiconductor processing equipment
  • Accelerators
  • Furnaces
  • Instrumentation
  • Analytical test and measurement equipment
  • CO2 lasers
  • Multispectral applications
  • Optical imaging
  • Materials processing
  • Thermometry
  • Pyrometry
  • Telecommunications
  • Analytical Equipment
  • Oil Exploration
  • R&D
  • High Energy Physics
  • Military/Defence
  • Biotechnology

New Products

New Products

 N/A
  • Extended Range Viewports
  • Differentially Pumped Viewports

Additional Information

Additional Information

 N/A CeramTec's precision-engineered Ceramaseal® viewports are available with a choice of two viewport materials: sapphire or fused silica. Other viewport materials are available upon request.

CeramTec offers a UV grade fused silica viewport with a 1.37" view diameter that can be used for cryogenic applications.

Sapphire should be used in the most demanding applications, as this material provides extended transmission, temperature, pressure and wear resistance.

To select the right window for your applications, you should consider size, transmission requirements, temperature, pressure, and aggressiveness of environment.

Advanced Ceramic-to-Metal & Glass-Ceramic Sealing Technology.