энергосберегающие, блин, лампочки

The Color of White

September 2000 Volume 21 Number 3 What is the color of white light? This may seem like an odd question. After all, white light is white — the combination of all the colors of the rainbow. And yet, depending on the context, white light does not always appear to our eye as white. When an observer stands in an atrium filled with "white" daylight and looks at a gallery illuminated with "white" tungsten-halogen lamps, the artificial light appears yellow or unnaturally warm. When the visitor stands in an artificially lighted space where there is no reference to daylight, the light appears "white" and a small spot of natural light will appear blue or unnaturally cool compared to the primary tungsten-halogen light source. // Дальше — cool.conservation-us.org

 

When an artist paints outside or by an open window, the color temperature is very high and so is the intensity of the light. When the painting is exhibited inside a museum at 20-30 footcandles, it is illuminated at a much lower level of intensity. According to the Kruithof curve, if the painting is illuminated at the same color temperature under which it was created (for example, 10,000° K), but at a much lower light level (for example, at 20 footcandles), the condition of display would be unpleasant. Therefore, it is not desirable to illuminate a painting at the same color temperature under which it was created if it will be exhibited at a much lower level of light intensity. The appropriate color temperature must be selected based on the intensity of the ambient illumination.

...

The most dramatic test took place at the Memorial Art Gallery of the University of Rochester, Rochester, N.Y.. The late 19th century French Painting gallery was permanently illuminated with 3500° K SoLux lamps under the supervision of Candace Adelson, Curator of European Art, who also played a key role in earlier studies. A visitor comment book was provided, along with a brief statement regarding the experimental nature of the gallery lighting. Visitors were asked to comment on the quality of the lighting compared to their memory of how the gallery had been illuminated, and compared to adjacent galleries, illuminated with incandescent (2700° K) and tungsten halogen (3000° K) lamps at the same level of intensity. The book was filled with observations about the increase in the saturation of colors, the greater sense of depth within the paintings, and the improved brightness and clarity of the paintings and of the gallery space in general.

...

Coincidentally, the choice of 3700° K was the preferred color temperature chosen on aesthetic grounds when looking at paintings.

 

Optics InfoBase: Journal of the Optical Society of America A - Correlated color temperature preferred by observers for illumination of artistic paintings

Optics InfoBase is the Optical Society's online library for flagship journals, partnered and copublished journals, and recent proceedings from OSA conferences. // www.opticsinfobase.org

 

The visual effects of lighting on art paintings is an important aspect that should be considered by museum curators. The aim of this work was to determine the correlated color temperature (CCT) of daylight illumination preferred by observers when appreciating art paintings. Hyperspectral images of 11 oil paintings were collected at the museum, and the appearance of the paintings under daylight illuminants with CCT from 25,000K to 3600K was computed. In a psychophysical experiment using precise CRT reproductions of the paintings, observers had to adjust the CCT of the illuminant such that it produced the best visual impression. It was found that the distribution of observers’ preferences had a maximum at a CCT of about 5100 K and that this value did not depend on whether the observers were undergraduate students or museum visitors or on the degree of adaptation to the color of the illumination. These results suggest that observers prefer a more bluish-white light than that normally used in museums.

 

уличного светодиодного освещения на солнечных батареях

 

солнечные батареи в качестве водонагревающих элементов

 

Крым - солнечный полуостров и эту энергию надо использовать. Плюс в степной Крым - место ветров... Шире и больше использовать ветряки.

 

утепление домов и зданий, окон и многие другие "мелкие" и эффективные вещи

 

Уменьшить энергопотребление в производстве, за счет внедрения энергосберегающих технологий.