1. An elastic polishing tool that comes into contact with a surface to be polished of a lens and rotates to polish the surface, comprising:
an elastic polishing body which has a cylindrical shape and whose shape can be changed according to the surface to be polished; and
a polishing pad that is adhered to one surface of the elastic polishing body opposite to the surface to be polished of the lens,
wherein the polishing pad has a diameter larger than the length of an arc of the elastic polishing body in a cross section including a rotation axis of the elastic polishing tool.
2. The elastic polishing tool according to claim 1,
wherein the diameter of the polishing pad is 1.01 to 1.60 times the length of the arc of the elastic polishing body.
3. The elastic polishing tool according to claim 1,
wherein the diameter of the polishing pad has a value obtained by the following expression:
(the length of the arc of the elastic polishing body+the length of a cylindrical portion of the elastic polishing body\xd74.00)\u2267the diameter of the polishing pad\u2267(the length of the arc of the elastic polishing body+the length of the cylindrical portion of the elastic polishing body\xd70.05).
4. The elastic polishing tool according to claim 1,
wherein the elastic polishing body is formed of a thermoplastic resin.
5. The elastic polishing tool according to claim 1,
wherein the polishing pad is a non-woven fabric or a sheet formed of a porous material.
6. The elastic polishing tool according to claim 2,
wherein the elastic polishing body is formed of a thermoplastic resin.
7. The elastic polishing tool according to claim 2,
wherein the polishing pad is a non-woven fabric or a sheet formed of a porous material.
8. The elastic polishing tool according to claim 3,
wherein the elastic polishing body is formed of a thermoplastic resin.
9. The elastic polishing tool according to claim 3,
wherein the polishing pad is a non-woven fabric or a sheet formed of a porous material.
10. The elastic polishing tool according to claim 4,
wherein the polishing pad is a non-woven fabric or a sheet formed of a porous material.
11. A lens polishing method comprising:
bringing an elastic polishing tool having an outer diameter smaller than an outmost diameter of a lens into contact with a surface to be polished of the lens; and
rocking the elastic polishing tool andor the lens while rotating the lens and the elastic polishing tool, thereby performing polishing,
wherein the elastic polishing tool includes:
an elastic polishing body which has a cylindrical shape and whose shape can be changed according to the surface to be polished; and
a polishing pad that has a diameter which is 1.01 to 1.60 times the length of an arc of the elastic polishing body in the cross section including a rotation axis of the elastic polishing tool and that is adhered to one surface of the elastic polishing body opposite to the surface to be polished of the lens.
12. A lens polishing method comprising:
bringing an elastic polishing tool having an outer diameter smaller than an outmost diameter of a lens into contact with a surface to be polished of the lens; and
rocking the elastic polishing tool andor the lens while rotating the lens and the elastic polishing tool, thereby performing polishing,
wherein the elastic polishing tool includes:
an elastic polishing body which has a cylindrical shape and whose shape can be changed according to the surface to be polished; and
a polishing pad that is adhered to one surface of the elastic polishing body opposite to the surface to be polished of the lens and that has, as a diameter, a value obtained by the following expression:
(the length of the arc of the elastic polishing body+the length of a cylindrical portion of the elastic polishing body\xd74.00)\u2267the diameter of the polishing pad\u2267(the length of the arc of the elastic polishing body+the length of the cylindrical portion of the elastic polishing body\xd70.05).
13. A lens polishing method comprising:
bringing an elastic polishing tool having an outer diameter smaller than an outmost diameter of a lens whose outer circumferential portion has a substantially elliptical shape into contact with a surface to be polished of the lens; and
rocking the elastic polishing tool andor the lens while rotating the lens and the elastic polishing tool, thereby performing polishing,
wherein a moving range of a rotation center of the elastic polishing tool which moves relative to the lens is within a shortest diameter of the substantially elliptical shape.
14. The lens polishing method according to claim 13,
wherein the outer diameter of the elastic polishing tool has a value obtained by the following expression:
the outer diameter of the elastic polishing tool\u2267(the outmost diameter of the lens\u2212the shortest diameter of the lens).
15. The lens polishing method according to claim 13,
wherein the moving range of the rotation center of the elastic polishing tool with respect to the lens, that is, a circular region that is drawn when the rotation center of the elastic polishing tool moved relative to the lens comes into contact with the lens, is between the rotation center of the lens and a part of the outer circumferential portion closest to the rotation center of the lens.
16. The lens polishing method according to claim 13, further comprising:
calculating a surface shape and an outward shape of the lens;
shaping the surface to be polished, on the basis of the calculated surface shape and outward shape; and
polishing the shaped surface.
17. The lens polishing method according to claim 14,
wherein the moving range of the rotation center of the elastic polishing tool with respect to the lens, that is, a circular region that is drawn when the rotation center of the elastic polishing tool moved relative to the lens comes into contact with the lens, is between the rotation center of the lens and a part of the outer circumferential portion closest to the rotation center of lens.
18. The lens polishing method according to claim 14, further comprising:
calculating a surface shape and an outward shape of the lens;
shaping the surface to be polished, on the basis of the calculated surface shape and outward shape; and
polishing the shaped surface.
19. The lens polishing method according to claim 15, further comprising:
calculating a surface shape and an outward shape of the lens;
shaping the surface to be polished, on the basis of the calculated surface shape and outward shape; and
polishing the shaped surface.
20. The lens polishing method according to claim 16,
wherein a thinnest part of the outer circumferential portion has a thickness which is larger than zero and is smaller than 2 mm after the surface to be polished is shaped.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An electrical power delivery system comprising:
a base comprising:
a first surface; and
a second surface spaced apart from the first surface by a first sidewall;
a platform extending away from the second surface of the base, the platform comprising:
a third surface spaced apart from the second surface by a second sidewall;
a first electrical power outlet at the third surface;
a second electrical power outlet at the second sidewall; and
an electrical power cord,
wherein:
the first electrical power outlet and the second electrical power outlet are electrically coupled to the electrical power cord such that the first electrical power outlet and the second electrical power outlet receive electrical power from the electrical power cord when the electrical power cord receives electrical power.
2. The electrical power delivery system of claim 1, further comprising:
a third electrical power outlet,
wherein:
the second sidewall comprises:
a first face; and
a second face;
the third electrical power outlet is located at the first face; and
the second electrical power outlet is located at the second face.
3. The electrical power delivery system of claim 2, wherein:
the first face is adjacent to the second face.
4. The electrical power delivery system of claim 2, wherein:
the first face is spaced apart from the second face.
5. The electrical power delivery system of claim 2, further comprising:
at least one fourth electrical power outlet at the third surface.
6. The electrical power delivery system of claim 1, wherein:
the first, second, and third surfaces are substantially parallel to each other.
7. The electrical power delivery system of claim 1, wherein:
the second electrical power outlet comprises a hot aperture, a neutral aperture, and a ground aperture; and
the ground aperture is closer to the third surface than the second surface.
8. The electrical power delivery system of claim 1, wherein:
the platform extends away from a middle region of the second surface.
9. The electrical power delivery system of claim 8, wherein:
a first portion of the second surface is located at a first end of the platform; and
a second portion of the second surface is located at a second end of the platform.
10. The electrical power delivery system of claim 1, wherein:
a surface area of the third surface is less than a surface area of the first surface.
11. The electrical power delivery system of claim 1, further comprising:
a cord management feature at the second sidewall.
12. The electrical power delivery system of claim 1, wherein:
the second sidewall comprises:
a first face; and
a second face spaced apart from the first face;
the second electrical power outlet is at the first face; and
the platform extends away from the second surface such that a first face of the first sidewall and the second face of the second sidewall are continuous with each other.
13. An electrical power delivery system comprising:
a base comprising:
a first surface; and
a second surface spaced apart from the first surface by a first sidewall;
a platform extending away from the second surface of the base, the platform comprising:
a third surface spaced apart from the second surface by a second sidewall, the second sidewall comprising:
a first face; and
a second face spaced apart from the first face;
at least one first electrical power outlet at the third surface;
at least one second electrical power outlet at the first face of the second sidewall; and
an electrical power cord, wherein:
the at least one first electrical power outlet and the at least one second electrical power outlet are electrically coupled to the electrical power cord such that the at least one first electrical power outlet and the at least one second electrical power outlet receive electrical power from the electrical power cord when the electrical power cord receives electrical power,
the third surface and the first face are in physical contact with each other along a first dividing line;
the third surface and the second face are in physical contact with each other along a second dividing line;
the at least one first electrical power outlet comprises a first hot aperture, a first neutral aperture, and a first ground aperture;
the at least one second electrical power outlet at comprises a second hot aperture, a second neutral aperture, and a second ground aperture;
the first hot aperture has a first long axis and the second hot aperture has a second long axis;
the first long axis and the second long axis are substantially perpendicular to the first dividing line;
the first ground aperture is closer to the first dividing line than are the first hot aperture and the first neutral aperture; and
the second ground aperture is closer to the first dividing line than are the second hot aperture and the second neutral aperture.
14. The electrical power delivery system of claim 3, further comprising:
at least one third electrical power outlet at the second face.
15. The electrical power delivery system of claim 14, wherein:
the at least one third electrical power outlet comprises a third hot aperture, a third neutral aperture, and a third ground aperture;
the third hot aperture has a third long axis;
the third long axis is substantially perpendicular to the second dividing line; and
the third ground aperture is closer to the second dividing line than are the third hot aperture and the third neutral aperture.
16. The electrical power delivery system of claim 13, wherein:
the platform extends away from the second surface such that a first face of the first sidewall and the second face of the second sidewall are continuous with each other.
17. A method of manufacturing an electrical power delivery system, the method comprising:
forming a base comprising:
a first surface; and
a second surface spaced apart from the first surface by a first sidewall;
forming a platform comprising a third surface spaced apart from the second surface by a second sidewall;
mounting a first electrical power outlet such that a face of the first electrical power outlet is accessible at the third surface;
mounting a second electrical power outlet such that a face of the second electrical power outlet is accessible at the second sidewall;
electrically coupling an electrical power cord to the first electrical power outlet and the second electrical power outlet such that the first electrical power outlet and the second electrical power outlet receive electrical power when the electrical power cord receives electrical power.
18. The method of claim 17, wherein:
forming the base and forming the platform are performed simultaneously with each other.
19. The method of claim 17, wherein:
forming the platform comprises:
forming the platform comprising the third surface spaced apart from the second surface by the second sidewall and a third sidewall; and
further comprising:
mounting a third electrical power outlet such that a face of the third electrical power outlet is accessible at the third sidewall.
20. The method of claim 17, further comprising:
mounting at least one fourth electrical power outlet such that a face of the at least one fourth electrical power outlet is accessible at the third surface.