Hi, I'm Dick Lyon. I am a research scientist/engineer in Silicon Valley, California. I've been contributing to Wikipedia since May, 2005.
Contributions to the Wikipedia
My contributions are mostly related to photography, photometry, color, electronics, and signal processing. And in recent years, style gnoming.
Here I collect most of the pictures I've uploaded, mostly my own, but including some public domain images and photos licensed by a few friends.
I uploaded over 100 photos in 2017, and over 100 so far in 2018.
From my recent (2018) trips:
Ugo Fano photo by Chris Greene
Photography and optics
Infrared photography photo by Seng P. Merrill
Rainbow photo by Seng P. Merrill
Rainbow photo by Georges Noblet
Photometry and colorimetry
Electronics and signal processing
Math, science, engineering
Chimayo photo by Andrea Stawitcke