Unique Laser Illumination

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

Built to fit your design

We have tested our light engine with most products currently available on the market. You can reach out to us to inquire about using your preferred combiner brand.

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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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Frequently asked questions

What is laser-LCoS?

Laser-LCoS (Laser-Illuminated Liquid Crystal on Silicon) is a display technology that combines the image quality and high resolution of an LCoS microdisplay with the brightness and efficiency of laser illumination.

In a laser-LCoS system, RGB laser light illuminates an LCoS panel, which acts as a reflective spatial light modulator. The LCoS panel creates the image, while the laser light provides the brightness and color needed to project it through optical systems such as combiners used in AR glasses.

Compared to conventional LED-illuminated LCoS systems, laser-LCoS can deliver higher brightness, wider color gamut, improved optical efficiency, and a smaller overall form factor. Because laser light is naturally polarized and highly directional, less light is lost within the optical path, making it particularly well suited for compact, battery-powered augmented reality devices such as AR glasses.

What are the main benefits of using laser-LCoS?

Laser-LCoS light provides exceptional brightness, energy efficiency, precise beam control, and a wider color gamut than conventional light sources, enabling vivid and accurate image reproduction.

What is Vitrealab’s AR light engine?

Vitrealab’s AR light engine is a reference design that 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.

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.