What is a Polarization Conversion System?

The PCS is a low cost, compact, monolithic component that polarizes up to 90% of incident light, allowing new levels of freedom in optical design and efficiency.

We make the worlds most compact and highest efficiency PCS.

How it Works

ImagineOptix PCS solutions use thin film polarizing beam splitters (ultra-efficient GPH films) to separate a single incident light beam into two beams with opposite circular polarizations. Our patented MTR film then converts one of those polarizations to match the other polarization. The output is up to an astounding 90% of light in the desired polarization state.

PCS Structure:

  • No air gaps between elements
  • Cross-section is along the long direction of the lenslets
  • Diffraction occurs within the plane of figure

Technology Comparison

Traditional PCSImagineOptix PCS
Conversion Efficiency 55-65% 75-85%
Elements 4 Elements and Multiple Assembly AlignmentsSingle Monolithic Element
EtendueDoubling of a EtendueOnly 50-75% Increase in Etendue

Click here for Technical Details including Specification and Benefits of our Polarization Conversion System


FAQs about Polarization Conversion System

Q. Is it possible to recover and use the lost polarization in our optical system?
A. Yes. Our PCS technology is designed for this type of recovery.

Q. What happens to the output angle and etendue?
A. In the direction of diffraction, it will double the output angle and double the etendue of the system.

Q. Can I put the PCS after the image is formed?
A. No. This is because the PCS changes ray angles and will introduce aberrations and significant scatter to the output.

Q. Can I use the PCS with an existing design?
A. This is possible, but if the increase in angle is not accounted for in the optical design, the performance will be significantly lower than expected. In general, we recommend that the PCS is designed at the same time as the rest of the optics to ensure excellent performance.

White Papers about Polarization Conversion System

Additional Applications for Polarization Conversion System


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Some Questions to Consider

These are typical questions we like to ask when engaging you as a customer to help best assess and understand your needs and challenges.

  • What are the key issues with your current solution?
  • Describe the major optical challenges you are facing. Is it low efficiency? Is there a unique polarization? a difficult phase profile to work with? or something else?
  • Are there specific technology features (i.e., diffraction, polarization, retardation, wavefront, focus, opto-electronics, other) that you are interested in?
  • What are the characteristics of the light source you need to work with (i.e., polarization, bandwidth, collimation, intensity, coherence)?
  • What are the desired characteristics of the light at the output of the system?
  • Are there any specific tests, experiments, or prototypes that would best validate a solution for your problem?
  • What is the timeframe within which you need a demonstrated solution?
  • Are there any unique or challenging form factor requirements? Thickness requirements? Large active area requirements?