Inventor
LEVOLA TAPANI KALERVO
CN12 patents
⚠️ This page may combine multiple inventors who share the name “LEVOLA TAPANI KALERVO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHENZHEN OPTIARK SEMICONDUCTOR TECH LIMITED
6 patentsUS11480722B2Oct 25, 2022
Optical expander device and its display device and method for outputting light and displaying image
SHENZHEN OPTIARK SEMICONDUCTOR TECH LIMITED6 citations72
US11119262B1Sep 14, 2021
Optical device, display device, and method for outputting light and displaying image thereof
SHENZHEN OPTIARK SEMICONDUCTOR TECH LIMITED6 citations69
US11789268B2Oct 17, 2023
Optical expander device
SHENZHEN OPTIARK SEMICONDUCTOR TECH LIMITED0 citations49
US12399308B2Aug 26, 2025
Display apparatus comprising diffractive elements
SHENZHEN OPTIARK SEMICONDUCTOR TECH LIMITED0 citations48
US11789261B2Oct 17, 2023
Optical expander device for displaying wide color image, display device thereof, and method for outputting light and displaying an image
SHENZHEN OPTIARK SEMICONDUCTOR TECH LIMITED0 citations48
US11624869B2Apr 11, 2023
Optical expander device for providing an extended field of view
SHENZHEN OPTIARK SEMICONDUCTOR TECH LIMITED0 citations48