Showing posts with label magic. Show all posts
Showing posts with label magic. Show all posts
Tuesday, February 5, 2019
The Magic of Light
QUESTION: Recently I watched a documentary on PBS called “Saving Brinton,” a part of the America Reframed series. It’s the story of a man in Iowa who ended up with one of the greatest collections of early films and projection entertainment equipment and accessories. It centers around William Franklin Brinton and his wife, Indiana, who traveled around the Midwest giving slide presentations and showing early movies, the earliest of which was from 1908. One of his pieces of equipment was a “magic lantern” projector. I had never heard of anything like it before and found it mesmerizing. What can you tell me about a magic lantern projector? How far back did they exist and who invented it?
ANSWER: Don’t feel bad. Most people probably haven’t heard of a magic lantern projector. It was the forerunner of slide projectors used until around the turn of the 21st century. But its history goes far back to the 17th century.
Historians credit Christiaan Huygens,a Dutch scientist, with the invention of the magic lantern in the 17th century. Candles illuminated this early form of slide projector but as technology evolved, a variety of sources from kerosene lamps to limelight and electricity were used. Magic lanterns work like a camera in reverse—they shine light out through a lens and project it onto a screen, with a static or moving slide or slides inside them, between the light and the lens.
The magic lantern, also known by its Latin name laterna magica, projected images painted, printed, or produced photographically on transparent glass plates. People commonly used these devices for entertainment purposes. By the 19th century, magic lanterns began to be used for educational purposes.
The magic lantern used a concave mirror in back of a light source to direct as much of the light as possible through a small rectangular sheet of glass—a "lantern slide"—on which was the image to be projected, and onward into a lens at the front of the apparatus. The user adjusted the lens to focus the plane of the slide at the distance of the projection screen, which often was simply a white wall, on which it formed an enlarged image of the slide on the screen.
Originally, artists hand painted the images on glass slides. They initially rendered figures with black paint but soon used transparent colors. Sometimes they first did the painting on oiled paper. Usually they used black paint as a background to block superfluous light, so they could project figures without distracting borders or frames. Artists finished any slides with a layer of transparent lacquer, but later on they used cover glasses to protect the painted layer. Finally, they mounted the slides in wooden frames with a round or square opening for the picture.
After 1820 the manufacturing of hand colored printed slides began, often making use of decal transfers. Makers produced their slides on strips of glass with several pictures on them, then rimmed them with a strip of glued paper.
During the 1790s, Thomas Rasmussen Walgensten, a mathematician from Gotland, who historians believe met Christiaan Huygens and from him learned about the magic lantern. In 1670 Walgensten projected an image of Death at the court of King Frederick III of Denmark. This scared some courtiers, but the king dismissed their cowardice and requested to repeat the figure three times. The king died a few days later. After Walgensten died, his widow sold his lanterns to the Danish Royal collection, but they have not been preserved.[9] Walgensten is credited with coining the term "Laterna Magica", assuming he communicated this name to Claude Dechales who in 1674 published about the machine of the "erudite Dane" that he had seen in 1665 in Lyon.
According to legend, Athanasius Kircher secretly used the lantern at night to project the image of Death on windows of apostates to scare them back into church. He hid his magic lantern in a separate room so his audience would be more astonished by the sudden appearance of images.
The earliest reports and illustrations of lantern projections suggest that they were all intended to scare the audience. Pierre Petit called the apparatus lanterne de peur, or lantern of fear, in his 1664 letter to Huygens. Surviving lantern plates and descriptions from the next decades prove that people used these early projectors not just for horror shows, but for projecting all sorts of subjects.
In 1675 Wilhelm Leibniz saw an important role for the magic lantern in a plan for a kind of world exhibition with projections of attempts at flight, artistic meteors, optical effects, representations of the sky with the star and comets, and a model of the earth, fireworks, water fountains, and ships in rare forms; then rare plants and exotic animals.
By the 1730s the use of magic lanterns started to become more widespread when traveling showmen, conjurers, and storytellers added them to their repertoire. The traveling lanternists, called Savoyards because they supposedly came from the Savoy region in France, became a common sight in many European cities.
Thomas Walgensten was the first person to use the term Laterna Magica. He not only realized the technical and artistic possibilities of the magic lantern, but also its economic potential, traveling round Europe demonstrating and selling them.
In the early years of the 19th Century, showmen with lanterns traveled around the country giving shows wherever they stopped. These were known as 'Galantee' showmen, and they would give shows by projecting on walls or white sheets. The subjects probably related to Biblical, moral and current events, and the showman would create stories for the children watching.
The Galantee showmen gave way to the “Professors,” showmen who had access to more elaborate equipment and wonderful, but expensive, animated slides. The development of oxy-hydrogen limelight and arc light made it possible for these projectionists to create huge images and elaborate effects in front of large audiences. The peak of the magic lantern trade occurred in the 1870s and 1880s.
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