Information On Charles Jenkins, His Laboratory, And His Company That Manufactured Early, Disc-Based Television Sets:

https://academic.oup.com/illinois-scholarship-online/book/30492

https://www.newspapers.com/article/palladium-item-projecting-the-future-pa/91470328/

Charles Jenkins had invented the very first device for the purpose of projecting images in the 1890’s, called the Panthoscope:

https://archive.org/details/jenkins-and-armat-phantoscope-projector-peter-domankiewicz_202301

https://www.pbs.org/newshour/science/150-years-prolific-pioneer-brought-us-movie-projector

See also this earlier post regarding the Early, Disc-Based Television Sets that the Jenkins Corporation had manufactured: A Jenkins Disc-Based Mechanical Television Set Produced In The Early 1930’s, And The Cheaper, Knocked-Down Kit Version That The End User Would Assemble Him Or Herself; Called The Jenkins RK-1 And RK-2