In-line skate with latitudinal aligned skate wheels

Abstract

A lenticular device with integral shuttering method for displaying an image, a series of which form an animated display when an observer is moving in parallel relative to the device is presented. The shuttering method includes means of displaying an image whereby this image is only viewable by the observer when the observer is positioned on the vertical plane perpendicular to the center of the device. Once the observer moves off this plane by a small fixed angle, the device image is invisible. This method can be employed for placing many devices on the walls of a subway tunnel which will result in an animated image visible to passengers of a subway car moving through the subway tunnel. These images can be illuminated by light from the windows of the subway car or can have their own illumination. The method can be employed on the walls of pedestrian walkways or sidewalks whereby the walking observer will see an animated image.

What we claim is:  
     
         1 . A lenticular device comprising: 
 a lenticular element having a plurality of lenticular lenses; and    an image holding element holding slices relating to a single image frame; and    an opaque member with a series of lenticular slits between the image assembly element and the lenticular lenses wherein: 
 said lenticular slits are positioned at the focal plane of each lenticular lens.  
   
     
     
         2 . The lenticular device of  claim 1  wherein: 
 said lenticular lenses are positioned so that the axis plane that passes through each lenticular lens focal line intersect at a line in front of the lenticular device.  
 
     
     
         3 . The lenticular device of  claim 2  including: 
 a series of opaque members that prohibit secondary viewing angles through each lenticular lens.  
 
     
     
         4 . The lenticular device as in  claim 3  wherein: 
 said device is held in their position by a framing structure.  
 
     
     
         5 . The lenticular device as in  claim 4  wherein: 
 a series of said lenticular devices are mounted in sequence.  
 
     
     
         6 . The lenticular device as in  claim 5  wherein: 
 said series of lenticular devices are mounted on the tunnel walls of a subway system.  
 
     
     
         7 . The lenticular device as in  claim 5  wherein: 
 said series of lenticular devices are mounted adjacent to a pedestrian walkway.  
 
     
     
         8 . The lenticular device as in  claim 5  wherein: 
 said series of lenticular devices are mounted adjacent to train tracks.  
 
     
     
         9 . The lenticular device as in  claim 5  wherein: 
 said series of lenticular devices are mounted adjacent to an automobile roadway.  
 
     
     
         10 . The lenticular device as in  claim 3  wherein: 
 said lenticular lenses are a fresnel implementation of lenticular lenses.  
 
     
     
         11 . The lenticular device as in  claim 3  wherein: 
 said lenticular device is illuminated by its own light source.