Since the stage production, stage lighting, the stage will become a component part. Stage lighting, in your outstanding vision, realism, aesthetic and performance of the four elements. After years of evolution. Gradually developed into a more complete and advanced lighting systems. The first boom period drama, in two thousand years ago in ancient Greece. At that time the theater is open or semi-open. Stage lighting is by the sky that's enormous "light" - the sun, we can only perform during the day. The night entertainment needs rest, vulnerable to weather and other open-air performances and drama development objective disadvantages to become a stage lighting must be addressed.
Show the success of lighting design, stage lighting is based on the appropriateness of the treatment as a symbol. Stage lighting to illuminate not only the actors, the audience to see facial expressions, posture and movement, more importantly, make full use of lighting technology, lighting operations and other means to mobilize to strengthen artistic effect, give the audience a feeling.
Stage lighting is mainly by the combination of computer lights and other lighting effect produced is a film scene through different shapes, different color changes, a different perspective, horizontal, vertical angle changes and the speed of light speed, strobe speed, aperture size changes , focal length changes and overall performance. Then, in stage lighting techniques to understand before they need to master these basics:
First, the visible light
Just form of electromagnetic waves by electronic transmission of radiant energy. Electromagnetic radiation wavelength range is very wide, only 380 ~ 760nm wavelength in this part of radiation can cause light vision, known as visible light. Wave length in the 380nm light is ultraviolet, x-rays, γ-rays; longer than 760nm is infrared light, radio waves, they are light on the human eye does not produce visual, that is invisible. Therefore, the energy just kind of objective existence, and with people's subjective feelings are closely linked.
Second, the color classification
Colors can be divided into two major categories of non-color and color. Color refers to non-white, light gray, gray to dark gray, until the black is called white-black series. White is ideal for light reflection completely object, the reflection rate of 1; black is the ideal non-reflective object, the reflection rate of 0. Therefore, non-color white light black line represents the reflectivity of the object changes. We know that the light reflectivity and brightness is proportional to the white interior walls and ceilings can be higher brightness. Color is black and white series of a variety of other colors. Color has three properties: hue, lightness and saturation, as the three elements of color.
Hue is the color of that showing. That is the name of a variety of different colors such as red, green and blue. With the wavelength of light. Lightness (brightness) is the brightness of that color. Different shades of brightness is different, even if the same surface color due to the nature and intensity of light will produce a different shade, shades of difference. Such as yellow, can be light yellow, yellow, dark yellow and so on.
Saturation (chroma) shades of that color (shades), it can be said to the purity of color, bright level. The higher the saturation, color becomes deeper (dark), visible in a variety of monochromatic light is the most saturated color. When the spectrum of color mixed with white, the more unsaturated. For example, red light shade of pink than the saturation, because the shade of pink mixed with white. In general, the same color, the brightness changes, the saturation also changed, but the increase or decrease the brightness of its saturation are reduced only when the brightness is moderate saturation (purity) was the largest. But the impression, always think the color looks great brightness is always some bright.
Third, the three primary colors and color matching method
Red, green, blue, known as the three primary colors. These three colors mixed in different proportions, can produce a variety of colors. There are two basic methods of color mixing: additive color mixing and subtractive color mixing.
The so-called additive color mixing is that when mixing different colors of light, they put some of their share of the spectrum together, thereby creating a new hybrid colors. Additive color mixing of light that the fineness of the relationship. Red, green and blue primary colors of light can have equal mixture of:
Red + green = yellow blue + green = glaucoma
Green + red = red + green + red product blue = white
If the amount of primary colors ranging from light mixing, you can get a variety of intermediate colors, for example:
Less than + red = orange light green
More + less = red pink light blue
Subtractive color mixing is the mixing of different colors, from incident in their respective selective absorption they share in the corresponding part of the spectrum, and produces a color effect of synthetic methods. After adding shade, such as any two can produce white light, said the two complement each shade on shade (complementary color). Such as yellow and blue colors complement each other, mutually complementary color green and red, magenta and green mutually complementary color. Therefore, yellow, green, blue and magenta are called reduction, less red, less green, which means that three kinds of complementary color are subtracted from white light made of a corresponding color. Therefore, yellow, cyan, magenta can be called the subtractive primary colors.
When the yellow, magenta, blue three subtractive primary colors overlap will produce black. In the subtractive process, the three subtractive primary colors, respectively, the density change in control of red, green and blue absorption ratio, to arrive at a variety of mixed colors, can be achieved with the additive color mixture of the same effect.
Fourth, the color and visual
Give people a sense of well-being of color, sense of distance, size and severity of a sense of feeling, and often makes them think, to form different psychological effects, these are long-form visual habits.
Color usually can be divided into cool, warm and neutral colors (neutral color) categories. Cold and warm colors is based on a variety of colors caused by the human visual response and the division of psychological association. Red is reminiscent of the fire's heat, resulting in warmth, as warm. Blue is reminiscent of cold water, gives a cold feeling, so called cool. Purple, green is neither cold nor warm neutral color. Appearance of different colors can affect the size of the object. If the number of objects of different colors of the same size together, in the visual feel of the object will have a big white light. Small dark objects. In general, the largest white object appears, the smallest objects appear black, yellow color of the object larger, followed by green, red, blue.
Habits of people of color vision will have a sense of near and far. Objects of different colors gives the same distance on a different visual experience. Gives a warm feeling to move forward, back away from the cool becomes the feeling. And the color gives the sense of distance is also affected by the background color effects. For example, white background, blue seemed at close; black background, the red looked recently, followed by orange, yellow, green, blue, purple. Using this feature can help us create a colorful three-dimensional, from a sense of illusion effect.
The severity of the color sense is the long-form visual habits. Generally believed that the lightest white and black the most. In the three primary colors of light, the lightest green, blue, the most important, red center. There are two primary colors mix to form the same amount of light colored, light-colored look with light colors look with heavy weight. Color sense of the weight not only manifested through brightness and purity, but also by the colors on the screen to occupy an area the size of the impact. Large area seem heavier and smaller than the area more attractive to people's attention to color.
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