Google llc (20250004359). STACKED APERTURES FOR STRAY LIGHT MITIGATION IN MICRO-PROJECTORS
STACKED APERTURES FOR STRAY LIGHT MITIGATION IN MICRO-PROJECTORS
Organization Name
Inventor(s)
Daniel J. Effinger of Squamish CA
STACKED APERTURES FOR STRAY LIGHT MITIGATION IN MICRO-PROJECTORS
This abstract first appeared for US patent application 20250004359 titled 'STACKED APERTURES FOR STRAY LIGHT MITIGATION IN MICRO-PROJECTORS
Original Abstract Submitted
a micro-projection system for use in small electronic devices can benefit from an optical assembly equipped with light-absorbing apertures. the light-absorbing apertures can aid in reducing or eliminating stray light and associated ghost images from appearing on the display of the projection system. modular units that include laminated stacks of such apertures, along with spacers, can be inserted into air gaps within the optical assembly. such stacked units can be made cost effective to manufacture in high volume.