New Wide Beam Imager Features 48 mm Diameter Aperture

Press Release Summary:

  • Capable of imaging any beam shape that is too large for a camera sensor as well as features angle of incidence of 70 degrees
  • Produces images with reduced speckle and high accuracy measurements of power distribution
  • Handle beam angles of 30 degrees as well as captures the beam and images its power distribution onto the camera with an accuracy of more than 5%

Original Press Release:

MKS Instruments Announces Ophir® Wide Beam Imager for Measuring Large and Divergent Beams of VCSELs, LEDs, Edge Emitting Lasers, and Fiber Lasers

September 23, 2020 - Andover, MA - MKS Instruments, Inc. (NASDAQ: MKSI), has announced the Ophir® Wide Beam Imager (WB-I), a compact calibrated optical system for measuring the size and power distribution of large and divergent beams of VCSELs, LEDs, edge emitting lasers, and fiber lasers. The Wide Beam Imager device is capable of imaging any beam shape (round, line, or square) that is too large for a camera sensor. It features a 48mm diameter aperture and an angle of incidence of 70 degrees. Beams are captured on a translucent diffusive screen and then re-imaged to produce a complete and accurate mapping of the light's intensity distribution. The WB-I is designed for use with camera-based beam profiling systems in development and testing of applications such as VCSEL-based LiDAR, high speed data communication solutions, 3D sensing, autofocus systems, and machine vision,

"There are times when beams are too large or too divergent to profile with conventional methods of directing the beam, or a sampling of the beam, into a beam profiling system for analysis," said Reuven Silverman, General Manager Ophir Photonics. "This is especially challenging with diverging beams that cannot be accurately measured with a regular detector because the quantum efficiency of the detector is highly dependent on the angle of incidence, by as much as 10% for a 15 degree angle of incidence. The Wide Beam Imager is a calibrated device that can handle beam angles of 30 degrees and higher. It captures the beam and images its power distribution onto the camera with an accuracy of better than 5%."

The Wide Beam Imager is a compact device that is quick to install, easy-to-use, and dust-proof. Unlike low accuracy, do-it-yourself devices or slow and expensive goniometers, the Wide Beam Imager produces images with reduced speckle and high accuracy measurements of power distribution.

The Wide Beam Imager device is supported by Ophir BeamGage Professional software, the industry's most advanced beam analysis system. BeamGage is based on Ultracal, Ophir's patented, baseline correction algorithm that helped establish the ISO 11146-3 standard for beam measurement accuracy. BeamGage software includes all the calculations needed to make accurate, ISO approved laser beam measurements, including total power, peak fluence, ellipticity, goodness of fit, and more. The software provides advanced image processing features, NIST-traceable power measurements, trend charting, data logging, pass/fail production testing, and multilingual support for English, Japanese, and Chinese. Advanced features include partitioning of the camera output for separate analysis of multiple laser beams from sources such as fiber, a .NET interface for full remote control when integrating beam analysis into an automated application, and camera sharing.


The Ophir Wide Beam Imager device is available now.

About MKS Instruments

MKS Instruments, Inc. (NASDAQ: MKSI), is a global provider of instruments, systems, subsystems and process control solutions that measure, monitor, deliver, analyze, power and control critical parameters of advanced manufacturing processes to improve process performance and productivity for our customers. Our products are derived from our core competencies in pressure measurement and control, flow measurement and control, gas and vapor delivery, gas composition analysis, electronic control technology, reactive gas generation and delivery, power generation and delivery, vacuum technology, lasers, photonics, optics, precision motion control, vibration control and laser-based manufacturing systems solutions. We also provide services relating to the maintenance and repair of our products, installation services and training. Our primary served markets include semiconductor, industrial technologies, life and health sciences, research and defense. Additional information can be found at

About the Ophir Brand

Ophir is a brand within the MKS Instruments Light & Motion division. The Ophir product portfolio consists of laser and LED measurement products, including laser power and energy meters, laser beam profilers measuring femto-watt to hundred-kilowatt lasers, high-performance IR and visible optical elements, IR thermal imaging lenses and zoom lenses for defense and commercial applications, OEM and replacement high-quality optics and sub-assemblies for CO2 and high-power fiber laser material processing applications. Ophir products enhance our customers' capabilities and productivity in the semiconductor, industrial technologies, life and health sciences, research and defense markets. For more information, visit

For More Information, Contact:
Reuven Silverman, General Manager
Ophir Business Unit (U.S.)
3050 North 300 West
North Logan, UT 84341
Tel: +1 435-753-3729

PR Office:
Shari Worthington, President
Telesian Technology, Inc.
49 Midgley Lane
Worcester, MA 01604
Tel: +1 508-397-6345

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