ES308582A1 - An optical apparatus for teaching, demonstrative and advertising purposes. (Machine-translation by Google Translate, not legally binding)
- Google Patents
An optical apparatus for teaching, demonstrative and advertising purposes. (Machine-translation by Google Translate, not legally binding)
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An optical apparatus for teaching, demonstration and advertising purposes, with interchangeable demonstrative images and a light source located behind them, in which it is possible to transmit to the viewer an impression of movement, characterized in that between the light source (1) and the demonstrative image (4) is arranged an opaque rotating disc (5) provided with transparent recesses (6), while the demonstrative images (4) have transparent surfaces ("a" to "a", "b" to "b") ") in places where it is about showing a movement. (Machine-translation by Google Translate, not legally binding)
ES0308582A1965-01-261965-01-26An optical apparatus for teaching, demonstrative and advertising purposes. (Machine-translation by Google Translate, not legally binding)
ExpiredES308582A1
(en)
Improvements in printed publicity elements exhibit procedures with three-dimensional appearance (Machine-translation by Google Translate, not legally binding)
Improvements introduced in systems to provide an observer with a visual effect secuentially built of an image and method to project that visual effect. (Machine-translation by Google Translate, not legally binding)