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The DC40 (ERP) was replaced in 2017 by the Dyson Light Ball. DC41 2011 The Dyson DC41 upright released in late 2011 as the replacement for the DC25, is the first upright vacuum with Dyson's new Radial Root Cyclone technology as well as an automatic height adjuster which provides the maximum amount of power in the suction head.
Dyson Limited, d.b.a Dyson, is a Singaporean–British multinational technology company. [7] Founded in 1991 by James Dyson in Malmesbury, England, the company designs and manufactures household appliances such as vacuum cleaners, air purifiers, hand dryers, bladeless fans, heaters, hair dryers, and lights.
Heceta Head Light is a lighthouse on the Oregon Coast 13 miles (21 km) north of Florence, and 13 miles (21 km) south of Yachats in the United States. It is located at Heceta Head Lighthouse State Scenic Viewpoint, a state park, midway up a 205-foot-tall (62 m) headland. Built in 1894, the 56-foot (17 m)-tall lighthouse shines a beam visible for ...
Sir James Dyson (born 2 May 1947) [2] is a British inventor, industrial designer, farmer, and business magnate who founded the Dyson company. [ 3 ] [ 4 ] He is best known as the inventor of the bagless vacuum cleaner , which works on the principle of cyclonic separation .
Nine-blade iris Pentacon 2.8/135 lens with 15-blade iris Aperture mechanism of Canon 50mm f/1.8 II lens, with five blades In the human eye, the iris (light brown) acts as the diaphragm and continuously constricts and dilates its aperture (the pupil) A 750nm titanium-sapphire laser beam passing through an iris diaphragm, while opening and closing the iris.
The collimator lens has the lower focal length and is placed closer to the light source, and the collector lens, which focuses the light into the triplet lens, is placed after the projection image (an active matrix LCD panel in LCD projectors). Fresnel lenses are also used as collimators in overhead projectors.
A light source (filament or arc) is placed at or near the focus of a reflector, which may be parabolic or of non-parabolic complex shape. Fresnel and prism optics moulded into the headlamp lens refract (shift) parts of the light laterally and vertically to provide the required light distribution pattern. Most sealed-beam headlamps have lens optics.
Clear lens extraction, also known as refractive lensectomy, custom lens replacement or refractive lens exchange is a surgical procedure in which clear lens of the human eye is removed. Unlike cataract surgery , where the cloudy lens is removed to treat a cataract , clear lens extraction is done to surgically correct refractive errors such as ...