car windshield HUD render where the "frit" area near the base of the windshield darkens

 

Luminit’s Light Shaping Diffusers® enable many HUD Tier 1 manufacturers in the automotive market to produce sharp and bright images based TFT and projector based units.  They allow the designer to customize the field of view of the display and despeckle the image for laser-based systems.

Advanced Head-Up Display (HUD)

Luminit Holographic Optical Element technologies for head-up displays use thin (10-30 micron) holographic photopolymer film that can be applied directly to car windshield displays or to reduce volume of under-dash optical components. The holograms recorded in this film have properties of thick (Bragg) holograms that are wavelength and angle selective with very low scattering. HOE film combined with an LED or laser light source allows a floating, transparent image to appear on the windshield without any obstruction of view. The driver does not need to focus on the image to view it or ever take his or her eyes off the road.

  • Transparency (>90%) and diffraction efficiency (>90% at peak)
  • Brighter, more compact designs with larger virtual image size
  • Transparent in the off state

Conventional HUDs

Luminit products can improve and simplify current Head Up Display (HUD) designs by enhancing brightness, creating flexibility in assembly, and simplifying display stack.

Standard HUD build with Luminit micro-optics
The role of Luminit optics in conventional HUD builds.

Holoptic HUD (AR- and IP-HUDs)

Automotive Head Up Displays (HUDs) need to be transparent, full color and have a large field of view. Holoptic HUD uses advanced holographic optical element designs to replace traditional optics with a thin, lightweight clear film. Our HUD design occupies <1.5 liters under dash and is an ideal solution for applications where space and weight are constrained. Holoptic HUD enables images that are multi-color, bright, with a wider field of view (FOV) and is manufacturable in high volumes.

A Significant Breakthrough for Automotive HUDs

Holoptic HUD is a single-layer film that supports RGB, resulting in full color, highly transparent holographic images.

example of the under-dash projector and in-windshield projection of an AR HUD set up

Read more about Luminit’s roadmap for HUD development in our blog post or contact us at sales@luminitco.com for more information.