Unique Light Engines

Outstanding Images
With laser-lcos

By combining the intensity of ultra-bright laser light with the precision of high-quality LCoS display panels, we deliver exceptional image quality in AR glasses.

Highly efficient design

The Quantum Light Chip (QLC) emits highly collimated light, enabling an exceptionally efficient design of the optical path within the light engine (see right picture). In contrast, LEDs, with their broader emission angles, result in significant optical losses (left picture). Moreover, light emitted from the QLC is polarized to begin with, whereas LED light requires polarization, consequently diminishing its brightness even further.

Power saving through
local illumination

The local illumination technology divides the Quantum Light Chip into distinct zones, each powered by its own set of RGB laser diodes. This ensures that only the LCoS surface that is needed for the image is illuminated, significantly enhancing the overall efficiency of the light engine.

Best Performance

Suitable for outdoor use

Highest brightness

Best image quality

Small size

The Quantum Light Chip sets new standards for brightness through multiple sets of RGB single-mode laser diodes. The chip’s homogeneous light distribution provides an optimal illumination source for LCoS based light engines.

A common artifact in laser-based imaging caused by laser coherence is known as speckle. Vitrealab has integrated a despeckler which eliminates coherent artifacts and provides perfect images.

The minuscule size of laser diodes and the dense network of waveguides inside the Quantum Light Chip result in a highly compact light engine of less than 1 cc.

Energy efficient

Wide field of view

Color and resolution

The combination of collimated laser light and a carefully designed light path within the light engine ensures high luminous efficacy across the entire system.

The wider the field of view (FOV), the larger the projection that appears before the eye. Thanks to the high brightness of the light source, even larger images remain clearly visible to the user.

The characteristic wavelengths of RGB laser diodes enable a broader color range than LEDs. The collimated laser illumination of the high-resolution LCoS delivers crisp images.

Compatibility &
Customization

Works with all combiners

Our light engine works with all types of combiners, reflective as well as diffractive. You can reach out to us to inquire about using your preferred combiner brand. We have tested our light engine with most products currently available on the market.

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Customization

We tailor our light engine to meet the individual requirements of our customers and partners. Field of view (FOV), exit pupil size, resolution and other parameters can be adjusted to provide you with exactly the product you need.

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Have you got a question about our product?

What is Vitrealab’s AR light engine?

Vitrealab’s AR light engine combines the Quantum Light Chip with high-resolution laser-LCoS (Liquid Crystal on Silicon) display panels to create bright, compact, and energy-efficient image projection systems for AR glasses.

Why is the light engine more efficient than LED-based solutions?

The Quantum Light Chip emits highly collimated and polarized laser light, reducing optical losses throughout the system. Unlike LEDs, which emit light in many directions and require additional polarization, more of the generated light reaches the LCoS panel and the user’s eye.

How does Vitrealab achieve high image quality?

The light engine combines ultra-bright RGB laser illumination with LCoS display technology and an integrated despeckling solution. This minimizes coherence artifacts while delivering sharp images, vivid colors, and excellent contrast.

Is the light engine suitable for outdoor AR glasses?

Yes. The high brightness provided by multiple RGB laser diodes enables clear image visibility even in bright outdoor environments, making the technology well suited for everyday AR applications.

How compact is the light engine?

The combination of miniature laser diodes and Vitrealab’s dense waveguide architecture enables an extremely compact light engine with a volume of less than 0,5 cubic centimeter, helping support lightweight AR glasses designs.

Can the light engine be customized for different AR products?

Yes. Vitrealab can tailor key parameters such as field of view (FOV), resolution, exit pupil size, and combiner compatibility to meet specific customer and application requirements. The light engine is designed to work with both reflective and diffractive combiner technologies.