For a pancake type of VR, most of the straylight issue comes from the imperfect polarizer model. Here we have provided an example that users can play with for investigation.
![](https://uploads-us-west-2.insided.com/zemax-en/attachment/55ef4224-624e-438e-b24d-3cd6691cdef4.png)
The components in the system are as below.
![](https://uploads-us-west-2.insided.com/zemax-en/attachment/f1c60469-3741-4d28-b848-43da53e29ccc.png)
In the polarizer (object #6), users can control the light leakage at reflection and transmission side. The polarizer is based on this paper but with some modifications: Non-paraxial idealized polarizer model
![](https://uploads-us-west-2.insided.com/zemax-en/attachment/c9b3575d-976e-4fbd-a8dd-6b032af7b234.png)
Note the input light is with circular polarization.
![](https://uploads-us-west-2.insided.com/zemax-en/attachment/d0f00ce6-c5e5-4094-b912-7ef34e51d246.png)
Enjoy!