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HMI lamps are approximately the same color temperature as the sun at noon (6000 K), and like other high intensity discharge lamps which contain mercury, generate ultraviolet light. Each HMI fixture has a UV safety glass cover that should be used to protect people who may be in front of the light.
A shoji (障 （ しょう ） 子 （ じ ）, Japanese pronunciation:) is a door, window or room divider used in traditional Japanese architecture, consisting of translucent (or transparent) sheets on a lattice frame. Where light transmission is not needed, the similar but opaque fusuma is used [1] (oshiire /closet doors, for instance [2 ...
The human eye's response to light is non-linear, so a more even distribution of the same amount of light makes a room appear brighter. The source of all daylight is the Sun. The proportion of direct to diffuse light impacts the amount and quality of daylight. [1] "Direct sunlight" reaches a site without being scattered within Earth's atmosphere.
An amber (light brown) safelight for use with certain black-and-white photographic papers A safelight is a light source suitable for use in a photographic darkroom . It provides illumination only from parts of the visible spectrum to which the photographic material in use is nearly, or completely insensitive.
Two schemes existed: either a special tool was required which was kept at the pit head, or else opening the lamp extinguished the flame. The latter mechanism can be seen in the Mueseler, Landau, and Yates lamps below. Such a lamp was known as a protector lamp, a term picked up and used as a company name. [22]
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Without any protection, the sun can heat up a car's dark dashboards to 69 °C (156 °F) within 60 minutes. [6] This is dangerous for adults, children, and animals. Prolonged exposure to direct sunlight can also make the dashboard fade and eventually crack, or cause damage to items left in the car, such as mobile phones, laptops and other ...
For example, a PAR16 lamp is approximately 2 inches or 50.8 mm in diameter. [1] The size of rectangular PAR lamps is expressed as the letters REC followed by the reflector's mouth height, the letter "X", and the reflector's mouth width—with both dimensions in millimeters. For example, REC142X200 lamps are 142 high and 200 mm wide. [2] [3]