What You Want to Know About Kodak Carousel Slide Projectors
Kodak introduced the carousel slide projector in 1961 after purchasing its design from its inventor, Italian-American Louis Misuraca. The carousel design features a rotary tray that stores slides for projection. You can place slides in a specific order to create a slideshow.Are there multiple designs of carousel slide projector?
It is true that many designs exist. The original design, Model 550, debuted in 1961 and remained available until 1966. Also, a professional grade model, Model S (Carousel-S), was released in 1963 in Germany.
The firm submitted its patent application in 1962. Engineer David E. Hansen worked to improve Misuraca's design and received a patent on May 11, 1965. The firm patented the rotary tray in 1966, following a 1962 application.
The firm continued to alter the design periodically, issuing a Pocket model in the 1970s for projection of Kodachrome slides in the miniature 110 format. Then, in the mid-1980s, the Model 4400 was issued. About the same time, Kodak brought out a stack loader that let a user run an up to 40 piece stack without a tray. It could only forward the stack though. It also introduced clip sets that held 36 pieces per clip. The rotary slide projector discontinued in October 2004.How does a rotary slide projector work?
A rotary model consists of two separate pieces: the circular tray and the projector body, which houses the motor. The slide tray holds either 80 or 140 35mm slides. It's placed backward and upside down into a traditional horizontal model so the photos display in their appropriate orientation on the wall. A metal plate on the bottom of the tray with a 0.20-inch wide opening allows a single slide at a time to enter the projection gate.
A motor inside the main body powers tray rotation. One at a time, a reciprocating mechanism advances the tray and advances a single slide into the projection opening where a light source shines on it and the lens projects it onto a screen or wall. The photos advance in the order they were inserted in the tray.What differences are there between horizontal and vertical rotary projectors?
The horizontal models offer three advantages:
- Locking ring: Its hub features a locking ring that holds slides in place even if dropped.
- Reduces jamming: It reduces the chance of jamming by using gravity to lower the slide into the projector.
- Automated mechanism: It offers an automated mechanism eliminating the need to manually reset the tray between slideshows.