Lamp with changing luminous effects

Claim 2

A lamp with changing luminous effects comprising means to provide heat and light and a transparent container located adjacent said means to provide heat and light; said container being filled with a mixture of liquids, the density of the liquid mixture varying with the temperature of said means to provide heat, the liquid mixture having metallized platelets dispersed therein which have a thickness which, related to the surface thereof and to the density of the liquid mixture at room temperature, is such that said platelets float on said liquid at room temperature, but do not float when said liquid has been heated by said heating means; the platelets each having at least one face which has been polished to reflect the rays emitted by the means to provide light; the means to provide heat and light generating a movement of the platelets within the liquid and sparkling of the luminous rays, due to the reflection produced by the polished faces of said platelets, the motion of the platelets resulting from convection currents in the liquid mixture and variation in density in the liquid due to the heating effect of said means to provide heat.

Claim 3

A lamp according to claim 1, wherein the liquid mixture fills the container leaving a small air volume.

Claim 4

A lamp according to claim 1, wherein the thickness/surface ratio of the metal platelets ranges between 0.7 and 1.5 micron/mm 2 ; while the surface dimension limit is between 10 and 100 mm 2 .

Claim 5

A lamp according to claim 1, wherein the amount (by weight) of the metal platelets, referred to 1000 gr of liquid mixture, is between 15 and 25 gr.

Claim 6

A lamp according to claim 1, wherein the platelets are formed of a base of a plastic material coated with at least one metal layer obtained by galvanic deposition.

Claim 7

A lamp according to claim 1, wherein the means to provide heat and light emits rays also within the infrared range and is an incandescent lamp having a tungsten filament.

Claim 8

A lamp according to claim 1, wherein the bottom of the container is multicolored.

Claim 9

A lamp according to claim 1, whereim the container is a transparent glass bottle having a flat bottom.

Claim 10

A lamp in accordance with claim 1 wherein said means to provide heat and light is a single means comprising an incandescent light bulb located beneath said transparent container.

Claim 11

A lamp according to claim 9, wherein the ratio between the power of said means to provide heat and light and the volume of the container is between 35 and 45 watts/liter.

Claim 12

A lamp in accordance with claim 9 wherein said mixture of liquids comprises a mixture of trichloroethylene and dichloroethylene.

Claim 13

A lamp according to claim 11, wherein the weight ratio between the trichloroethylene and the dichloroethylene is between 7 and 11.

Claim 14

A lamp in accordance with claim 1 wherein said means to provide heat is located below said mixture of liquid in said container.

Claim 15

A lamp for providing changing luminous effects, comprising: a lamp lower portion having a chamber therein, and a luminous means for generating heat and light housed within said lower portion; a transparent container located above said lamp lower potion and in light communication therewith, said container being filled with a clear liquid and a plurality of reflective platelets dispersed and floating in said liquid, the density of said liquid being between 1.27 and 1.47 and the density of said reflective platelets being slightly less than the density of said liquid such that at room temperature and under quiescent conditions said reflective particles float on said liquid; multi-colored means located between said luminous means and said liquid to cause luminous rays from said luminous means to be multi-colored; and means to cause convection currents and a decrease in density in said liquid, in turn causing said reflective platelets to sink into said liquid and causing movement of said reflective platelets within said liquid and sparkling of luminous rays by reflection of light from said luminous means to and off of said reflective platelets, said means comprising means to activate said luminous means.

Claim 16

A lamp for providing changing luminous effects, comprising: a lamp lower portion having a chamber therein, and a luminous means for generating heat and light housed within said lower portion; a transparent container located above said lamp lower potion and in light communication therewith, said container being filled with a clear liquid and a plurality of reflective platelets dispersed and floating in said liquid, the density of said liquid being between 1.27 and 1.47 and the density of said reflective platelets being slightly less than the density of said liquid such that at room temperature and under quiescent conditions said reflective particles float on said liquid; multi-colored means located between said luminous means and said liquid to cause luminous rays from said luminous means to be multi-colored; and means to cause convection currents and a decrease in density in said liquid, in turn causing said reflective platelets to sink into said liquid and causing movement of said reflective platelets within said liquid and sparkling of luminous rays by reflection of light from said luminous means to and off of said reflective platelets, said means comprising means to activate said luminous means.

Claim 17

A lamp in accordance with claim 14 wherein said liquid comprises a mixture of 7-11 parts by weight of trichloroethylene per part of dichloroethylene; said reflective platelets comprise metallized plastic platelets of 15-25 gms. per 1000 gms. of said liquid; the thickness/surface ratio being 0.7 to 1.5 microns/mm 2 , and the surface area of said platelets being 10 - 100 mm 2 .

Claim 18

A lamp in accordance with claim 15 wherein said luminous means comprises an incandescent bulb of approximately 40 watts per liter of said liquid.