Evacuated solar collector

Solar heat collecting apparatus, comprising:

• a first, inner glass dome having an upper portion shaped substantially as half an ellipsoid and a cylindrically shaped lower portion integrally joined to said upper portion wherein said upper and lower portions have the same diameter;
• a second, larger outer glass dome disposed outwardly from said inner dome having an upper portion shaped substantially as half an ellipsoid and a cylindrically shaped lower portion integrally joined to said upper portion wherein said upper and lower portions have the same diameter, said inner and outer domes having respective inner and outer surfaces and an open end;
• an infared reflective coating adhered to said inner surface of said outer dome;
• a solder glass seal joining together the open ends of said inner and outer domes, thereby forming a void between said inner and outer domes;
• a vacuum formed in said void;
• an absorber plate disposed beneath and covered by said inner and outer domes;
• and
• means for transferring heat collected by the solar heat collecting apparatus remotely therefrom.

A solar collection array, comprising:

• a plurality of solar collectors, each of which is formed by a first, inner glass dome and a second, larger outer glass dome disposed outwardly from said inner dome, said inner and outer domes having respective inner and outer surfaces and an open end;
• an infared reflective coating adhered to said inner surface of said outer dome;
• a solder glass seal joining together the open ends of said inner and outer domes, thereby forming a void between said inner and outer domes;
• and a vacuum in said void;
• a plurality of absorber plates, each of which is disposed beneath a respective one of said plurality of solar collectors;
• means for transferring heat collected by the solar heat collecting apparatus remotely therefrom;
• and
• reflectors placed individually around each solar collector to form a honeycombed structure.

A solar stove, comprising:

• a first, inner glass dome;
• a second, larger outer glass dome disposed outwardly from said inner dome, said inner and outer domes having respective inner and outer surfaces and an open end;
• an infrared reflective coating adhered to said inner surface of said outer dome;
• a solder glass seal joining together the open ends of said inner and outer domes, thereby forming a void between said inner and outer domes;
• an absorber disposed beneath and covered by said inner dome;
• means for rechargeably forming a vacuum in said void;
• a heat sink disposed beneath said inner and outer domes and said absorber;
• wherein each of said inner and outer domes further comprising an upper portion shaped substantially as half an ellipsoid;
• and
• a cylindrically-shaped lower portion integrally joined to said upper portion;
• wherein said upper and lower portions have substantially the same diameter.

A solar stove, comprising:

• a first, inner glass dome;
• a second, larger outer glass dome disposed outwardly from said inner dome, said inner and outer domes having respective inner and outer surfaces and an open end;
• an infrared reflective coating adhered to said inner surface of said outer dome;
• a solder glass seal joining together the open ends of said inner and outer domes, thereby forming a void between said inner and outer domes;
• an absorber disposed beneath and covered by said inner dome;
• means for rechargeably forming a vacuum in said void;
• a heat sink disposed beneath said inner and outer domes and said absorber;
• and
• wherein said upper portion is defined by a shape that is obtained when an ellipse, developed by the equation
• (x.sup.2 /a.sup.2)+(y.sup.2 /b.sup.2)=1
• where a and b are equal, is cut in half and rotated through 180.degree. with its x-axis as the center of rotation.

Solar heat collecting apparatus, comprising:

• a first, inner glass dome;
• a second, larger outer glass dome disposed outwardly from said inner dome, said inner and outer domes having respective inner and outer surfaces and an open end;
• an infrared reflective coating adhered to said inner surface of said outer dome;
• a solder glass seal joining together the open ends of said inner and outer domes, thereby forming a void between said inner and outer domes;
• a vacuum formed in said void;
• an absorber plate disposed beneath and covered by said inner and outer domes;
• means for rechargeably forming a vacuum in said void;
• means for transferring heat collected by the solar heat collecting apparatus remotely therefrom;
• and
• wherein said outer dome further comprises a Fresnel lens.

Solar heat collecting apparatus, comprising:

• a first, inner glass dome;
• a second, larger outer glass dome disposed outwardly from said inner dome, said inner and outer domes having respective inner and outer surfaces and an open end;
• an infrared reflective coating adhered to said inner surface of said outer dome;
• a solder glass seal joining together the open ends of said inner and outer domes, thereby forming a void between said inner and outer domes;
• a vacuum formed in said void;
• an absorber plate disposed beneath and covered by said inner and outer domes;
• means for rechargeably forming a vacuum in said void;
• means for transferring heat collected by the solar heat collecting apparatus remotely therefrom;
• and
• wherein said inner and outer domes each further comprises a Fresnel lens.