Playing cards
AssigneeVx Enterprises Ltd
InventorAndrew Dodds
Life of this patent
Estimating the term…
Abstract
A deck of playing cards wherein at least one card comprises a base layer that bears a front surface and a back surface and a substantially planar holographic optical element that is operatively configured to form a holographic image, the holographic optical element disposed at or towards a surface that is selected from the front and back surfaces the at least one card characterized in that the holographic optical element is of a type that is substantially transparent and manufactured to substantially prevent said holographic image from being viewed in a first range of directions with respect to the selected surface and to substantially enable said holographic image to be viewed from a second range of directions that are outside of the first range.
Claims28
A deck of playing cards wherein at least one card comprises:
- a base layer that bears a front surface and a back surface, with game markings disposed on the front surface;
- and
- a substantially planar holographic optical element disposed on the front surface and being operatively configured to form a holographic image of additional markings different from the game markings that are viewable over at least a portion of the front surface;
- said holographic optical element being manufactured to produce said holographic image that is not viewable over a first range of directions that includes a viewing direction line normal to the front surface and extends to a second viewing line that subtends an acute angle with respect to the direction line normal to the front surface;
- said holographic optical element being further manufactured to produce said holographic image that is viewable over a second range of directions that does not overlap the first range of directions;
- said holographic optical element being of a type that is substantially transparent, to render viewable the game markings from both first and second range of directions.
A playing card comprising:
- a base layer that bears a front surface and a back surface, with game markings disposed on the front surface;
- and
- a substantially planar holographic optical element disposed on the front surface and being operatively configured to form a holographic image of additional markings different from the game markings that are viewable over at least a portion of the front surface;
- said holographic optical element being manufactured to produce said holographic image that is not viewable over a first range of directions that includes a viewing direction line normal to the front surface and extends to a second viewing line that subtends an acute angle with respect to the direction line normal to the front surface;
- said holographic optical element being further manufactured to produce said holographic image that is viewable over a second range of directions that does not overlap the first range of directions;
- said holographic optical element being of a type that is substantially transparent, to render viewable the game markings from both first and second range of directions.
Dependencies are inferred from the claim text.