LED spotlight

An LED spotlight, comprising:

• a) a cylindrical housing,
• b)at least one LED within the housing, each LED having a nominal radiation pattern width of at least about 55 degrees,
• b) means for the at least one LED to receive electrical power, and
• c) at least one circular lens within the housing,
• wherein each lens has a diameter of 15 to 26 millimeters,
• wherein each lens of the at least one lens is disposed forward of an associated LED of the at least one LED,
• wherein each lens collimates a majority of the light from its associated LED into a beam no more than about 10 degrees wide, and all collimation of light by each lens occurs through refraction, and
• wherein each LED of the at least one LED has a radiation pattern width of at least about 100 degrees.

An LED spotlight, comprising:

• a) a cylindrical housing,
• b) at least one LED within the cylindrical housing, each LED having a nominal radiation pattern width of at least about 55 degrees,
• b) means for the at least one LED to receive electrical power, and
• c) at least one lens within the housing,
• wherein each lens of the at least one lens is disposed forward of an associated LED of the at least one LED,
• wherein each lens has a diameter of about 15 to about 26 millimeters,
• wherein each lens is concavoconvex,
• wherein each lens has its rear surface more sharply curved in a concave manner towards its edge than towards its axis,
• wherein the distance between each lens and its associated LED is less than the thickness of the lens, and
• wherein each lens collimates light from the lens into a beam that has a width of no more than about 10 degrees, and all collimation of light by each lens occurs through refraction.

An LED spotlight, comprising:

• a) a cylindrical housing,
• b) at least one LED within the housing, each LED having a nominal radiation pattern width of at least about 55 degrees,
• b) means for the at least one LED to receive electrical power, and
• c) at least one lens within the housing,
• wherein each lens has a diameter of about 15 to about 26 millimeters,
• wherein each lens of the at least one lens is disposed forward of an associated LED of the at least one LED,
• wherein each lens collimates a majority of the light from its associated LED into a beam no more than about 10 degrees wide, and all collimation of light by each lens occurs through refraction, and
• wherein each LED of the at least one LED has a radiation pattern width of about 55 degrees,
• wherein each LED has a power rating of at least 1 watt, and
• wherein each LED produces light of wavelengths suitable for causing visible fluorescence of fluorescent materials.