Optical design

LED Colour Mixing Technology

Over many years, POL has developed a number of colour mixing technologies to maximise the application of multi-colour and single colour LEDs in colour controlled system.

Our patented prismatic colour mixing optic was introduced to enable good colour mixing, for narrow beam angle systems, using three discrete LED sources. These can be either RGB or some other mix to give a colour controlled illumination system.

Compact-POL-Colour-Mixer-OpticCompact POL Colour Mixer Optic patent-diagramPOL’s Colour Mixer Optic uses a patented prismatic technique to mix the LED colours inside the optic, while maintaining a narrow beam
simple-render shower-head

RGB Shower Optic for Hansa, GmbH, using POL’s patented colour mixing technology.




Colour Mixing Hybrid Reflectors

colour options

Perfect colour mixing can be achieved with the POL Colour Mixer Hybrid Reflector optics, allowing an infinite range of illumination colours to be produced with a constant and stable beam geometry.


An additional advantage is that the appearance of the emitted light from the optic is a uniform mixed colour too, removing the usual visible spots of RGB seen in other colour mixing approaches.


POL also produce reflector products by conventional metal spinning and using vacuum metallisation of plastic moulded reflector substrates, but similarly POL can integrate the Hybrid Reflector central lens component into these other production routes.




Please download the PDF presentation for more details of POL’s colour mixing products.

Optical ServicesServices

Design and Development

The latest computer optical design and ray trace programs with optomechanical innovation are used to take full advantage of plastics materials. Complex optical surfaces combined with integral low cost assembly features.



SLA (Stereolithography), SLS (Selective Laser Sintering), Clear SLA, SLA to Vacuum Casting, Direct Machining and Tooling options.



Proven optical quality toolmakers are chosen and assisted by mould flow analysis to optimize the tool. Our specialist toolmakers are skilled in optical surface generation and polishing.


Global Manufacturing

Our moulders are trained in the art of optical moulding. Mould flow process analysis and thorough F.M.E.A. is controlled by the Project Manager to ensure quality and quantity.


Technical Development

Our integrated approach to design enables optical components to become part of the total solution, including how they interface with the other non-optical components.


Optical Coatings and Films

Plastics optical components can be coated in poly-siloxane and acrylate based resin blends to impart more robust properties.


Project Management

Every project has a dedicated Manager to ensure as tasks are actioned, the client is kept informed on progress at each stage. Timing plans are used to monitor progress against agreed milestones and they ensure full control through-out the design, tooling, sampling and production stages.


  • Design and Development
  • Prototyping
  • Tooling
  • Global Manufacturing
  • Technical Development
  • Optical Coatings and Films
  • Project Management