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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.
Light field. A light field, or lightfield, is a vector function that describes the amount of light flowing in every direction through every point in a space. The space of all possible light rays is given by the five-dimensional plenoptic function, and the magnitude of each ray is given by its radiance. Michael Faraday was the first to propose ...
Corpuscular theory of light. In optics, the corpuscular theory of light states that light is made up of small discrete particles called "corpuscles" (little particles) which travel in a straight line with a finite velocity and possess impetus. This notion was based on an alternate description of atomism of the time period.
Stage lighting. Stage lighting is the craft of lighting as it applies to the production of theater, dance, opera, and other performance arts. [1] Several different types of stage lighting instruments are used in this discipline. [2] In addition to basic lighting, modern stage lighting can also include special effects, such as lasers and fog ...
The 26th General Conference on Weights and Measures (CGPM) redefined the candela in 2018. [10] [11] The new definition, which took effect on 20 May 2019, is: The candela [...] is defined by taking the fixed numerical value of the luminous efficacy of monochromatic radiation of frequency 540 × 10 12 Hz, [a] K cd, to be 683 when expressed in the unit lm W −1, which is equal to cd sr W −1 ...
1675 – Robert Boyle discovers that electric attraction and repulsion can act across a vacuum and do not depend upon the air as a medium. Adds resin to the known list of "electrics". 1675 – Isaac Newton delivers his theory of light. 1676 – Ole Rømer proves that speed of light is finite, by observing Jupiter 's moons.
Transparency and translucency. Dichroic filters are created using optically transparent materials. In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without appreciable scattering of light. On a macroscopic scale (one in which the dimensions are ...
19th century. 1800–1809 Humphry Davy invents the arc lamp when using Voltaic piles (battery) for his electrolysis experiments. 1802 William Murdoch illuminates the exterior of the Soho Foundry with gas. 1805 Philips and Lee's Cotton Mill, Manchester was the first industrial factory to be fully lit by gas. 1809 Humphry Davy publicly ...