Direct/Indirect
fluorescent Pendant: Weatherspoon Art Museum: provides ambient lighting (and arguably some wall washing): it is located in the upstairs main hallway so therefore it has no other purpose other than to light the hallway in combination with natural light: as with all fluorescents, this one is no different with regards to color quality. Its not there: so far as illumination is concerned, the volume of the hallway is neither too bright or too dark.
Direct/Indirect
incandescent pendant lamp: Stone Building hallway in front of the HES dean's office: ambient lighting for the hallway, spaced every 15-20 feet: since this is the only light source in the hallway, the illumination difference is severely noticeable between the ceiling, wall, and floor area. Most of the light shines up on the ceiling as you can see and it gets considerably darker as your eyes drift downward: as far as color is concerned, I don't think it is bright enough down where people are to get the quality you would normally get from incandescent lamps.
Metal Halide Lamp (HID) - Xenon: I was unable to find an actual halide in a real life situation. I know them from cars (the really annoying head lights that are clearly and irritatingly different from everyone else's head lights). I don't know why people use them. They should be banned. Joe Gohn also said they are not as good on energy efficiency, life span, and also said that the color changes over the life span of the lamp. That is a problem when you have to replace one lamp in a fixture, you pretty much have to replace all of them since you don't want any difference in the color of light coming out of the fixture. As Joe would say "Metal Halides are bad in every way imaginable."
Direct/Indirect fluorescent Pendant: Weatherspoon Art Museum: provides ambient lighting (and arguably some wall washing): it is located in the upstairs main hallway so therefore it has no other purpose other than to light the hallway in combination with natural light: as with all fluorescents, this one is no different with regards to color quality. Its not there: so far as illumination is concerned, the volume of the hallway is neither too bright or too dark.
Direct/Indirect incandescent pendant lamp: Stone Building hallway in front of the HES dean's office: ambient lighting for the hallway, spaced every 15-20 feet: since this is the only light source in the hallway, the illumination difference is severely noticeable between the ceiling, wall, and floor area. Most of the light shines up on the ceiling as you can see and it gets considerably darker as your eyes drift downward: as far as color is concerned, I don't think it is bright enough down where people are to get the quality you would normally get from incandescent lamps.
Metal Halide Lamp (HID) - Xenon: I was unable to find an actual halide in a real life situation. I know them from cars (the really annoying head lights that are clearly and irritatingly different from everyone else's head lights). I don't know why people use them. They should be banned. Joe Gohn also said they are not as good on energy efficiency, life span, and also said that the color changes over the life span of the lamp. That is a problem when you have to replace one lamp in a fixture, you pretty much have to replace all of them since you don't want any difference in the color of light coming out of the fixture. As Joe would say "Metal Halides are bad in every way imaginable."
No comments:
Post a Comment