Portable reading light device

A portable reading light device utilizing an LED as the source of light mounted in a housing having a plurality of focusing mirrors mounted therein.

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I claim:

1. A portable lightweight lamp for illuminating a subject comprising:

a light projection housing of a unitary structure having an opening at one end and terminating in a light output opening at the other end and having a longitudinal axis;

LED means mounted in said housing at one end thereof for emitting a source of light;

focusing lens means mounted in said housing remote from said LED means receiving therethrough the light emitted by said LED means and projecting a focused beam of light out of the housing; said means including a first lens mounted in said otherend and a second lens mounted between said first lens and said LED means and being slidably mounted to said housing to linearly move along said longitudinal axis.

2. The lamp of claim 1 wherein said LED means includes 6 LEDs in 2 rows of 3 in each row disposed next to each other in abutting relationship.

3. The lamp of claim 2 wherein said LEDs are white frosted round LEDs.

4. The lamp of claim 1 wherein the size of the beam passing from said LED means through said first lens to said second lens is adjustable.

5. The lamp of claim 1 wherein said housing is about 46 mm. long and about 26 mm. in diameter at its open other end.

6. The lamp of claim 1 wherein said LED means is mounted in a neck in said housing, said neck communicating with an enlarged chamber in said housing, said lens means includes a first lens mounted in said neck and a second lens mounted in saidother open end.

7. In the lamp of claim 1 including an adjustable clamp coupled to said projection housing for clamping the same to an adjustable headband of a user or a book.

8. In the lamp of claim 7 wherein an adjustable headband is provided having said clamp attached thereto.

9. In the lamp of claim 7 including an earpiece adapted to be worn by the user having said clamp attached thereto.

10. In the lamp of claim 1 wherein said housing is of plastic.

11. In the lamp of claim 1 wherein the interior of said projection housing is a non-reflective surface.

12. In the lamp of claim 1 wherein said projection housing is swivelly adjustable to a clamp thereby permitting said housing to be adjusted with respect to said clamp.

13. The lamp of claim 1 wherein said lens means includes a first rectangular double helix lens disposed in said housing spaced from said LED means and a second round double helix lens disposed in said other open end of said housing.

14. The lamp of claim 1 wherein said lens means includes a first rectangular double helix lens disposed in said housing spaced from said LED means and a second oval double helix lens disposed in said other open end of said housing.

15. The lamp of claim 1 including chip means associated with the LED means for controlling the brightness thereof.

16. The lamp of claim 1 wherein said LED means includes a plurality of LEDs, each being white light emitting milky diffusion type LEDs.

17. The lamp of claim 16 wherein each of said LEDs has a typical luminosity of about 0.48 cds and each emits light at about a 70.degree. angle of directivity.

18. The lamp of claim 1 wherein the distance between said first lens and said LED means is fixed.