Search results
Results from the WOW.Com Content Network
An ellipsoidal reflector. An adjustable lens tube containing the lens or lens train. Adjusting the tube by pushing it further in or pulling it further out of the unit allows changes to the focus (softness or hardness) of the beam of light projected by the unit. This results from changing the distance between the reflector and the lens train.
During his time at Yale, McCandless published some of the first books to lay out a method and approach to the art of lighting design. In his book A Method of Lighting the Stage (1932), McCandless details his method of lighting design which is based on the idea of breaking the stage down into uniform acting areas and manipulating light in terms of intensity, color, distribution, and control.
Ellipsoid. An ellipsoid is a surface that can be obtained from a sphere by deforming it by means of directional scalings, or more generally, of an affine transformation. An ellipsoid is a quadric surface; that is, a surface that may be defined as the zero set of a polynomial of degree two in three variables.
A parabolic (or paraboloid or paraboloidal) reflector (or dish or mirror) is a reflective surface used to collect or project energy such as light, sound, or radio waves. Its shape is part of a circular paraboloid, that is, the surface generated by a parabola revolving around its axis. The parabolic reflector transforms an incoming plane wave ...
A gobo is an object placed inside or in front of a light source to control the shape of the emitted light and its shadow. [1][2][3][4][5] For studio photography purposes, the term "gobo" has come to refer to any device that casts a shadow, and various pieces of equipment that go in front of a light (such as a gobo arm or gobo head). [6] In ...
A Lekolite (often abbreviated to Leko) is a brand of ellipsoidal reflector spotlight (ERS) used in stage lighting which refers to the half- ellipsoidal dome reflector within which the instrument's lamp is housed. Introduced in 1933, [1] it was developed by Joseph Levy and Edward Kook, founders of Century Lighting, which eventually became a part ...
An ellipse (red) obtained as the intersection of a cone with an inclined plane. Ellipse: notations. Ellipses: examples with increasing eccentricity. In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant.
The giant elliptical galaxy ESO 325-4. An elliptical galaxy is a type of galaxy with an approximately ellipsoidal shape and a smooth, nearly featureless image. They are one of the four main classes of galaxy described by Edwin Hubble in his Hubble sequence and 1936 work The Realm of the Nebulae, [1] along with spiral and lenticular galaxies.