Premium Digital Projector for Planetariums

The VELVET LED projector developed and manufactured by ZEISS is the only one in the world that has been created in every respect for astronomical displays in planetariums. It impresses not only with its enormous contrast ratio of 2,500,000 : 1, but also with its outstanding image quality.

  • Highest Contrast
  • Brilliant Colors
  • Ultimate Sharpness
  • Perfect Blending
Contrast of conventional projectors
Contrast of a ZEISS VELVET LED
Contrast comparison of commercially available projectors with ZEISS VELVET LED

Black night sky and bright stars thanks to top contrast

As the only DLP projector on the market, VELVET achieves a contrast ratio comparable to ZEISS' fibre-optic star projection. VELVET LED provides an absolutely black image background. No grey background light brightens the night sky. Stars and objects shine on deep black.

Brightness of conventional projectors
Brightness of a ZEISS VELVET LED
Colour comparison of commercially available projectors with ZEISS VELVET LED

DLP Technology and LED Light Sources for Brilliant and Stable Colors

DLP technology provides stability and ensures consistent colours and brightness for many years. Even after many thousands of hours of operation, a VELVET LED projector delivers excellent picture quality. The high contrast of the projector results in high color saturation. The eye perceives the high-contrast and color-intensive projection as particularly brilliant and pleasant. The new LED light sources provide an improved colour space compared to previous models.

World-class quality with ZEISS DIGIGON

ZEISS Optics for Pin-sharp Pixels and Excellent Pixel Contrast

Not only the number of pixels determines a good picture. Only the entire reproduction quality of the projection device defines sharpness and image impression. The VELVET LED incorporates ZEISS optics of the highest quality, guaranteeing impressive image quality. This is why a 6k dome image generated with VELVET LED looks sharper and crisper than many an 8k image from other systems.

Blending-Grid in Planetarium Dome

Perfect Blending

Thanks to the absence of any backlighting by the VELVET projectors, there is no need for mechanical masks within or in front of the projection lenses, which is necessary with other projector technologies to reduce the visibility of channel blends. The transitions between the individual image channels are invisible with VELVET LED, the dome image is perfect.


in English

  • ZEISS VELVET LED product presentation in English

Additional Information

  • Picture Quality

    • DLP technology and ZEISS optics for razor-sharp pixels and excellent pixel contrast
    • absolutely black image background, resulting in increased colour brilliance
    • high resolution for particularly detailed images: real pixels, no pixel shift


    • extended colour space and more saturated colours, pure white thanks to LED lighting
    • visibly improved colour fastness compared to previous models
    • 30-bit colour depth for smooth colour gradients without banding
    • colour stability and homogeneity practically over the entire operating time


    • Impressive brightness for all planetarium applications
    • higher stability of brightness compared to lamp projectors


    • invisible transitions between image channels (fades)
    • aperture calculations without greyscale loss
    • no mechanical masks for the best possible aperture quality
    • reduced overlapping area between channels, thus higher pixel utilisation

    ZEISS Lenses 

    • specially corrected ZEISS lenses that take into account the curvature of the projection surface
    • optimised image quality thanks to optics with extremely high and colour-pure transmission
    • practically vignette-free projection

    Light Sources

    • extended availability by approx. 40 % thanks to LED light source (no warm-up, can be switched on and off at any time)

    Maintenance and Service

    • very long service life of ten years or more
    • encapsulated lightengine for long service-free operation
    • easy to adjust, less susceptible to servicing than projectors with a colour wheel
    • fast and cost-effective remote maintenance
    • service reliability for at least ten years
    • significantly reduced total cost of ownership


    Projector & Housing

    • no stray light in the projector and lens
    • light-tightness, no light leakage from housing parts
    • improved cooling for noise-reduced operation

    Configuration & Calibration

    • coordinated projector and software configuration from a single source
    • wide range of configuration options, also for off-centre projection
    • stereo-capable (active 3D projection - 120 Hz)
    • comprehensive calibration options (geometry, brightness, colours)
  • Fulldome VELVET 2 Configuration
    Fulldome VELVET 5 Configuration
    Fulldome VELVET 11 Configuration

    Number Projectors




    Dome diameter

    4,5 m bis 12 m

    12 m bis 18 m

    23 m bis 30 m

    Resolution (approx.)




  • VELVET LED Projector

    Picture Format

    WQXGA (2560 x 1600), native (up to 120 Hz)

    Display Technology

    LVDS DMD™ with DarkChip3™
    ZEISS True Black Projection Technology


    corresponds to a visual impression of 2600 lm

    Contrast (sequential)

    2.500.000 : 1

    Width x Height x Depth

    approx. 674 mm x 729 mm x 500 mm, incl. lens and frame

    Light Sources

    LED-based RGB solid-state lighting

    Video Inputs

    2x DisplayPort digital RGB


    ca. 70 kg

    Projection Lens


    VELVET LED Fulldome-System

    Projection Surface

    360° x 180° (±15°)

    Dome Diameter

    4.5 to 30 m (various configurations)

    Dome Inclination

    0° to 30°

    Dome Reflectance

    35% to 60% recommended

    Apertures between Channels

    electronic, no masks in front of the lens


    2 to 10+ channels

    Remote Maintenance

    optional, internet connection required


Do you have any questions?

We look forward to hearing from you!

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