Starry sky projection device with nebula lens and starry sky generation method
OwnerGuihua Zhanginventor
Life of this patent
Estimating the term…
Abstract
The present invention relates to a starry sky projection device with a nebula lens and a starry sky generation method, which comprises a nebula lens with a light-emitting area, wherein a variation part is added on the nebula lens, and the variation part defines a variation area, and the variation area generates image variation different from the light-emitting area; and a varied nebula and accompanying stars are generated by adding a light source and a diffractive optical element, so as to form a varied projected starry sky.
Claims20
A nebula lens, comprising at least one main structure and at least one opening arranged on said main structure, wherein said main structure is a rotating body, and said main structure has at least one outer surface and at least one inner surface;
- and
- said main structure has a tendency to protrude away from said opening, said inner surface defines at least one cavity, and said outer surface defines at least one light-emitting area, and said light-emitting area faces away from said opening;
- and
- said main structure is provided with at least one layer of nebula pattern and at least one variation part, and said variation part defines at least one variation area, and said variation area faces away from said opening;
- and
- said variation area generates image changes different from said light-emitting area.
A starry sky projection device with a nebula lens, comprising at least one nebula lens, at least one incoherent light source and at least one coherent light source, wherein said nebula lens is provided with at least one diffractive optical element;
- and
- wherein said incoherent light source generates incoherent light, which irradiates said nebula lens, and said coherent light source generates coherent light, which irradiates said diffractive optical element;
- and
- said nebula lens comprises at least one main structure and at least one opening arranged on said main structure, wherein said main structure is a rotating body and has at least one outer surface and at least one inner surface;
- and
- said main structure has a tendency to protrude away from said opening, said inner surface defines at least one cavity, and said outer surface defines at least one light-emitting area, and said light-emitting area faces away from said opening;
- and
- said main structure is provided with at least one layer of nebula pattern and at least one variation part, and said variation part defines at least one variation area, which faces away from said opening and generates image changes different from said light-emitting area.
A method for generating starry sky, comprising providing at least one nebula lens and at least one incoherent light source, wherein said incoherent light source generates incoherent light, and said incoherent light irradiates said nebula lens, and said nebula lens comprises at least one main structure and at least one opening arranged on said main structure, wherein said main structure is a rotating body, and said main structure has at least one outer surface and at least one inner surface;
- said main structure has a tendency to protrude away from said opening, said inner surface defines at least one cavity, and said outer surface defines at least one light-emitting area;
- said light-emitting area faces away from said opening, said main structure is provided with at least one layer of nebula pattern and at least one variation part;
- said variation part defines at least one variation area, said variation area faces away from said opening, and said variation area generates image changes different from said light-emitting area;
- and
- the method for generating starry sky comprises the following steps:
- activating said incoherent light source to generate said incoherent light;
- irradiating said incoherent light to said nebula pattern and said variation part;
- passing said incoherent light through said nebula lens;
- and
- irradiating said incoherent light to a surface of a projected object to form a starry sky composed of varied nebulae.
Dependencies are inferred from the claim text.