Page light

Claim 2

A page illumination device comprising: a three-dimensional body of substantially transparent material, including generally planar first and second major surfaces, opposed side walls and opposed end walls, one of the major surfaces of said body being adapted to be placed in contact with a work surface to effect illumination thereof while minimizing illumination of the surrounding environment; a source of illumination for said body disposed adjacent to one of said end walls; and a discontinuity in said body spaced from said one end wall and located in the vicinity of said illumination source for enhancing the uniformity of the illumination of said body and thereby the work surface in contact with said one of the major surfaces of said body and for minimizing undesired dark areas therein.

Claim 3

An illumination device as claimed in claim 1, wherein said body is thickest adjacent said one end wall.

Claim 4

An illumination device as claimed in claim 2, wherein the thickness of said body tapers generally uniformly from said one end wall to the other of said end walls.

Claim 5

An illumination device as claimed in claim 1, including a single opening formed in and extending into said body from said one end wall; said illumination source being disposed in said opening.

Claim 6

An illumination device as claimed in claim 4, wherein said one end wall is shaped as a prism in cross-section for reflecting light emanating from said illumination source back into said body.

Claim 7

An illumination device as claimed in claim 4, wherein said opening is located substantially midway between said side walls.

Claim 8

An illumination device as claimed in claim 1, wherein said one end wall is configured to maximize reflection of light emanating from said illumination source.

Claim 9

An illumination device as claimed in claim 1, wherein the surfaces of said side walls are reflective to reflect light emanating from said illumination source back into said body to minimize illumination of adjacent areas through said side walls.

Claim 10

An illumination device as claimed in claim 8, including a reflective coating on said side walls.

Claim 11

An illumination device as claimed in claim 1, wherein said illumination source is sufficiently low powered to be thermally safe to the touch.

Claim 12

An illumination device as claimed in claim 1, including means covering said one end and adjacent portions of both of said major surfaces of said body and thereby said illumination source and said discontinuity for shielding said source and discontinuity from view.

Claim 13

An illumination device as claimed in claim 11, including means attaching said illumination source to said cover means for supporting said source in position adjacent said one end.

Claim 14

A page illumination device comprising: a three-dimensional tapered body of substantially transparent material, including generally planar first and second major surfaces, opposed side walls and opposed end walls, one of the major surfaces of said body being adapted to be placed in contact with a work surface to effect illumination thereof while minimizing illumination of the surrounding environment; the thickness of said body tapering generally uniformly from one of said end walls to the other of said end walls; an opening formed in said one end of said body and extending into said body from said one end wall; a source of illumination for said body disposed in said opening adjacent to said one end wall; a discontinuity formed in and extending through said body in the vicinity of and adjacent to said illumination source opening for enhancing the uniformity of the illumination of said body and thereby the uniformity of the illumination of the work surface in contact with said one major surface of said body by minimizing undesired dark areas therein at locations spaced away from said discontinuity; and means extending over a portion of said major surfaces of said body to cover said opening, said discontinuity and said illumination source.

Claim 15

A page illumination device comprising: a three-dimensional tapered body of substantially transparent material, including generally planar first and second major surfaces, opposed side walls and opposed end walls, one of the major surfaces of said body being adapted to be placed in contact with a work surface to effect illumination thereof while minimizing illumination of the surrounding environment; the thickness of said body tapering generally uniformly from one of said end walls to the other of said end walls; an opening formed in said one end of said body and extending into said body from said one end wall; a source of illumination for said body disposed in said opening adjacent to said one end wall; a discontinuity formed in and extending through said body in the vicinity of and adjacent to said illumination source opening for enhancing the uniformity of the illumination of said body and thereby the uniformity of the illumination of the work surface in contact with said one major surface of said body by minimizing undesired dark areas therein at locations spaced away from said discontinuity; and means extending over a portion of said major surfaces of said body to cover said opening, said discontinuity and said illumination source.

Claim 16

An illumination device as claimed in claim 13, including means covering said one end and adjacent portions of both of said major surfaces of said body and thereby said illumination source, said opening and said discontinuity for shielding said source, said opening and discontinuity from view.

Claim 17

An illumination device as claimed in claim 14, including means attaching said illumination source to said cover means for supporting said source in said opening.

Claim 18

A page illumination device comprising: a three-dimensional body of substantially transparent material, including generally planar first and second major surfaces, opposed side walls and opposed end walls, one of the major surfaces of said body being adapted to be placed in contact with a work surface to effect illumination thereof while minimizing illumination of the surrounding environment; a source of illumination for said body disposed adjacent to one of said end walls; and a discontinuity in said body in the vicinity of said illumination source for enhancing the illumination of said body and thereby the work surface and for minimizing undesired dark areas therein; said discontinuity being defined by a slot extending through said body from one of said major surfaces to the other and disposed adjacent to said source of illumination.

Claim 19

A page illumination device comprising: a three-dimensional body of substantially transparent material, including generally planar first and second major surfaces, opposed side walls and opposed end walls, one of the major surfaces of said body being adapted to be placed in contact with a work surface to effect illumination thereof while minimizing illumination of the surrounding environment; a source of illumination for said body disposed adjacent to one of said end walls; and a discontinuity in said body in the vicinity of said illumination source for enhancing the illumination of said body and thereby the work surface and for minimizing undesired dark areas therein; said discontinuity being defined by a slot extending through said body from one of said major surfaces to the other and disposed adjacent to said source of illumination.

Claim 20

An illumination device as claimed in claim 16, wherein said slot is disposed between said illumination device and the portion of said body adapted to contact the work surface.

Claim 21

An illumination device as claimed in claim 16, wherein said slot is generally arcuate.

Claim 22

A page illumination device comprising: a three-dimensional tapered body of substantially transparent material, including generally planar first and second major surfaces, opposed side walls and opposed end walls, one of the major surfaces of said body being adapted to be placed in contact with a work surface to effect illumination thereof while minimizing illumination of the surrounding environment; the thickness of said body tapering generally uniformly from one of said end walls to the other of said end walls; an opening formed in said one end of said body and extending into said body from said one end wall; a source of illumination for said body disposed in said opening adjacent to said one end wall; a discontinuity formed in and extending through said body in the vicinity of and adjacent to said illumination source opening for enhancing the illumination of said body and thereby the work surface by minimizing undesired dark areas therein, said discontinuity being defined by a slot extending through said body from one of said major surfaces to the other and disposed adjacent to said source of illumination; and means extending over a portion of said major surfaces of said body to cover said opening, said discontinuity and said illumination source.

Claim 23

A page illumination device comprising: a three-dimensional tapered body of substantially transparent material, including generally planar first and second major surfaces, opposed side walls and opposed end walls, one of the major surfaces of said body being adapted to be placed in contact with a work surface to effect illumination thereof while minimizing illumination of the surrounding environment; the thickness of said body tapering generally uniformly from one of said end walls to the other of said end walls; an opening formed in said one end of said body and extending into said body from said one end wall; a source of illumination for said body disposed in said opening adjacent to said one end wall; a discontinuity formed in and extending through said body in the vicinity of and adjacent to said illumination source opening for enhancing the illumination of said body and thereby the work surface by minimizing undesired dark areas therein, said discontinuity being defined by a slot extending through said body from one of said major surfaces to the other and disposed adjacent to said source of illumination; and means extending over a portion of said major surfaces of said body to cover said opening, said discontinuity and said illumination source.

Claim 24

An illumination device as claimed in claim 19, wherein said slot is disposed between said illumination device and the portion of said body adapted to contact the work surface.

Claim 25

An illumination device as claimed in claim 19, wherein said slot is generally arcuate.