The basic knowledge of stage lighting technology and industry development

Since the stage, stage lighting to be an integral part of the stage.In the stage lighting, outstanding vision, realism, the aesthetic and performance of the four elements.Experienced years of evolution.Gradually developed into a more perfect and advanced lighting system today.Play the first boom, appeared in the two thousand years ago in ancient Greece.The theatre is open or half open.Stage lighting depends on the the enormous "light" - the sun in the sky, so can only be performed during the day.For recreation needs, open-air performances, and the night are easily affected by the weather and other objective disadvantages and the development of drama made stage lighting people must solve the problem.Since the stage, stage lighting to be an integral part of the stage.In the stage lighting, outstanding vision, realism, the aesthetic and performance of the four elements.Experienced years of evolution.Gradually developed into a more perfect and advanced lighting system today.Play the first boom, appeared in the two thousand years ago in ancient Greece.The theatre is open or half open.Stage lighting depends on the the enormous "light" - the sun in the sky, so can only be performed during the day.For recreation needs, open-air performances, and the night are easily affected by the weather and other objective disadvantages and the development of drama made stage lighting people must solve the problem.

Show lighting design is successful, in the processing of stage lights are properly marked.Lighting is not only to illuminate the actor, let the audience see the facial expression, expression and action, more important is to make full use of lighting technology, transfer the light means to strengthen the artistic effect, such as the operation make the audience have immersive feeling.

Stage lighting is mainly by combination the effect of the amount and other lamps and lanterns, is through the different modelling mural, different colour change, a different perspective, the change of horizontal and vertical angles and speed, stroboscopic speed, aperture size, focal length changes such as comprehensive performance.Before the understanding of stage lighting technology will have to master the basic knowledge of:

A, visible

Light is with electric radiant energy, in the form of electromagnetic wave propagation.A wide range of the wavelength of the electromagnetic wave radiation, only in this part of the 380 ~ 760 nm wavelength radiation can cause visual light, called visible light.A wavelength at 380 nm light, ultraviolet rays, x rays, and gamma rays;More than 760 nm is infrared light, radio waves, they to the human eye is not the light visual, is invisible.Therefore, the energy of the light is a kind of objective existence, and is closely related to people's subjective feeling.

Second, the classification of color

Color can be divided into two major categories of the color and color.The colour from white, light gray, gray to dark gray, until the black, called white black series.The object of pure white is the ideal light reflex completely, its reflectivity is 1;Pure black is the ideal nonreflective objects, the reflectivity of 0.So, the color white black series represents the change of object light reflectivity.We know that light reflectivity is proportional to the brightness, and the white walls of the indoor ceiling can get higher brightness.Color refer to the various colors of white and black series.Color has three characteristics: hue, lightness and saturation, known as the three elements of colour. Color tone is said to present.Also is the name of all sorts of different color, such as red, green, blue, etc.It is related to the wavelength of light.Lightness (brightness) said the color is bright.Different colors of different lightness, even the same color due to the nature of the object surface and the light intensity is different also, shades of light and shade difference is produced.As same is yellow, can have a pale yellow, medium yellow, deep yellow, etc. Saturation (chroma) said the depth of the color (shade), also can saying is the purity of color, bright degree.The higher the degree of saturation, the deeper the color appears (thick), all kinds of monochromatic light is the most saturated color in the visible light.When the spectral colors blended with white light, the more the less saturated.For example, the red light than pink light saturation is high, because the pink light mixed with white light.Generally speaking, the same hue, brightness changes, the degree of saturation is also changed, but the brightness of the increase or decrease its saturation is lower, only when the brightness moderate saturation (purity) is the largest.But in the sense that gives a person, always feel always great lightness color looks more bright.

Three, the three primary colors and color matching methodIs known as the three primary colors

red, green, blue.These three colors mixed in different proportion, can produce all sorts of color.Color mixing there are two basic methods: additive mixing and subtractive color mix. So-called additive method is when the light of different colour mix, they have put their part in the spectrum of together to produce a kind of new method of mixed color.Showed that additive color mixture of light colour.Red, green, blue three colored light amount of mixed available:Red + green = yellow green + blue = green lightGreen + red = magenta red + green + blue = white lightIf different amounts when mixed three primary colors of light, you can get all kinds of middle color, such as:Red + green = less orange lightRed + blue = less pink lightThe subtractive mixture is the different color mixed, from their respective incident light selectively absorb them in the spectrum of the corresponding parts, and to produce a synthetic method of color effect.If any two color together after can produce white light, the two kinds of color are mutually complementary color light (complementary colors).Such as yellow and blue are complementary, green and red are complementary, magenta and green are complementary.So, yellow, green, magenta respectively called blue, red, and green reduction, that is to say, three kinds of color are composed of white light minus a corresponding color.Yellow, green, magenta can therefore be referred to as the subtractive primaries.When the yellow, magenta, blue three overlap the subtractive primary colors can produce black.In the subtractive process, the density of the three subtractive primary colors change respectively control the absorption proportion of red, green, blue, and draw all kinds of mixed color, can achieve the same result of mixed with the additive method.

Four, color and visual

Color can give a person warm and cool feeling, sense of distance, size and weight, and lenovo, it often makes people to form a different psychological effect, these are the people form the visual habit for a long time. Color is usually can be divided into warm and cool colors and neutral color (color) among three categories.Colour of cold and warm is based on a variety of color to people caused by the visual and psychological reaction of lenovo.Red makes people think of the heat of the fire, resulting in a warm feeling, known as warm colors.Blue makes people think of cold water, give a person with cold feeling, reason is called a cool color.Purple, green is not cold not warm color neutrals.Different colour can affect the size of the object appearance.If some of the objects of different color the same size together, can produce light white on visual sense objects.The object of deep black small.In general, looks the biggest object of white, black object looks minimum, yellow color object, followed by green, red, blue. People of color vision habits will feel sense of distance.Different colors of objects on the same distance vision giving a person different feelings.Warm color gives a person to move feeling, the feeling of cool color is far away from the back.And colour gives people a sense of distance is influenced by background color.For example, white as the background, the blue looks closer;With black as the background, the red looks recently, followed by orange, yellow, green, blue, purple.Take advantage of the characteristics can help us to create the illusion of the a kind of color depth, distance effect. Colorific weight feeling is formed by long-term visual habit.It is generally believed that white the lightest and most black.In three primary colors of light, the green, the lightest, most blue and red in the middle.There are two kinds of the original light amount of mixed color, with light color is light, heavy color appear heavy.Colorific weight feeling not only through the brightness and purity, also under the influence of color in the picture area size.Area appears heavier and bigger than the small size of color can attract more people's attention

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