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Light transmission efficiency is greatest if the tube is short and straight. In longer, angled, or flexible tubes, part of the light intensity is lost. To minimize losses, a high reflectivity of the tube lining is crucial; manufacturers claim reflectivities of their materials, in the visible range, of up to almost 99.5 percent. [10] [11]
Solar tubes, sun tunnels, or tubular skylights consist of a roof-mounted fixed unit skylight element, condensing sunlight, distributed by a light conveying optic conduit to a light diffusing element. [3] Being small in diameter, they can be used for daylighting smaller spaces such as hallways, and bounce light in darker corners of spaces. TDDs ...
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.
A gooseneck lamp. A gooseneck lamp is a type of light fixture in which a lamp or lightbulb is attached to a flexible, adjustable shaft known as a "gooseneck" to allow the user to position the light source without moving the fixture or item to be illuminated. [1]
Consequently, the tunneling distance d tunnel is reduced and so the tunneling current, which exponentially depends on d tunnel, is increased. Hence, the voltage is lower than that of the InGaP tunnel junction. GaAsSb heterojunction tunnel diodes offer other advantages. The same current can be achieved by using a lower doping. [38]
In some cases, the flexible arms are also useful when carrying out work in inaccessible places. Magnets or grippers at the end of the gooseneck can be used to "fish out" small parts from inaccessible places, a mirror or lighting allows views into hidden corners. A gooseneck on a stick lighter allows convenient lighting in hard-to-reach positions.
The slide room concept had been around in the RV industry since the 1970s and power slide outs since 1990, [21] but this was Sunline's first application of them. 50,000th Sunline, a 2000 T-2370. 8/26/99. The Saturn travel trailer line was launched in 1996. [22]
In architecture, a lightwell, [NB 1] sky-well, [NB 2] or air shaft is an unroofed or roofed external space provided within the volume of a large building to allow light and air to reach what would otherwise be a dark or unventilated area. Lightwells may be lined with glazed bricks to increase the reflection of sunlight within the space.
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