Lenticular signaling device

Details Lenticular signaling device Lenticular signaling device

G - Physics

02

B

88/3

G02B 27/00 (2006.01)

Patent

CA 1219154

23 ABSTRACT OF THE DISCLOSURE A lenticular device having a lens array of trans- parent quality with one or more lenticular convex rid- ges (40) joined by cusped or concave valleys (41) forming lens elements on one of its surfaces. In addi- tion, the lenticular array is uniformly separated from a message transmitting surface (38) by an air space (26) directly related to a field of view of no more than 30° determined by the converging light rays at the focal point (39). The carrier sheet or message (38) is a plurality of messages resolved from a series of linear segments in the form of binary lineations placed in Focus relative to the lens array. By estab- lishing a proportional relationship between lens aperture and focal length, the rate of message change is predetermined for any prescribed viewing situation. Surface interference caused by reflection, chromatic diffraction, and other light loss is controlled by the relationship of optical design, and optical quality, coupled with other structural elements.

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