You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
The rays from the sun are assumed to fall upon a surface perpendicular to the direction of propagation.
For June 21 at latitude of Cleveland (O).
For Feb. 15 at latitude of Cleveland.
For Dec. 21 at latitude of Cleveland.
The energy from the tungsten lamp is the amount falling on a square centimeter at a distance of one meter from the lamp.
Calculated for one square centimeter of molten tungsten.
Table 2
Total energy, illumination, and ultraviolet energy from the sun and some tungsten filament lamps
The energy and illumination from the sun are corrected for the sun’s distance from the zenith, i.e., are for a horizontal surface.
June 21 for latitude of Cleveland (O).
About February 15 for latitude of Cleveland (O).
December 21 for latitude of Cleveland (O).
The values for the tungsten filament lamps and arc for a cm.2 at a distance of one meter from the lamp.
Calculated for one cm2 of molten tungsten.
Tables (2)
Table 1
Energy in various parts of the spectrum of the sun for various air masses and for some tungsten lamps
The rays from the sun are assumed to fall upon a surface perpendicular to the direction of propagation.
For June 21 at latitude of Cleveland (O).
For Feb. 15 at latitude of Cleveland.
For Dec. 21 at latitude of Cleveland.
The energy from the tungsten lamp is the amount falling on a square centimeter at a distance of one meter from the lamp.
Calculated for one square centimeter of molten tungsten.
Table 2
Total energy, illumination, and ultraviolet energy from the sun and some tungsten filament lamps
The energy and illumination from the sun are corrected for the sun’s distance from the zenith, i.e., are for a horizontal surface.
June 21 for latitude of Cleveland (O).
About February 15 for latitude of Cleveland (O).
December 21 for latitude of Cleveland (O).
The values for the tungsten filament lamps and arc for a cm.2 at a distance of one meter from the lamp.
Calculated for one cm2 of molten tungsten.