Basic knowledge of stage lighting technology and industry development
[Summary description]
Since the emergence of the stage, stage lighting has become an indispensable part of the stage. Stage lighting emphasizes four key elements: visual, realistic, aesthetic, and expressive. It has undergone many years of evolution.
Since the emergence of the stage, stage lighting has become an indispensable part of the stage. Stage lighting emphasizes four key elements: visual, realistic, aesthetic, and expressive. It has undergone many years of evolution. Gradually developing into a relatively complete and advanced lighting system. The first prosperous period of drama appeared in ancient Greece over two thousand years ago. At that time, theaters were either open-air or semi open-air. The stage lighting relies on the huge "light" in the sky - the sun, so it can only be performed during the day. The need for night rest and entertainment, the vulnerability of outdoor performances to weather, and the development of drama have made stage lighting a problem that people must solve.
The proper handling of stage lighting signifies the success of performance lighting design. Stage lighting not only needs to illuminate the actors, allowing the audience to clearly see their facial expressions, expressions, and movements, but more importantly, it is necessary to fully utilize lighting technology, mobilize lighting operations, and other means to enhance artistic effects, allowing the audience to immerse themselves.
Stage lighting is mainly generated by the combination of computer lights and other lighting equipment, which is a combination of scenes with different shapes, changes in colors, different perspectives, horizontal and vertical light angles, as well as changes in speed, strobe, aperture size, and focal length. Therefore, before understanding stage lighting technology, it is necessary to master the following basic knowledge:
1. Visible light
Light is the radiation energy transmitted through electricity in the form of electromagnetic waves. The wavelength range of electromagnetic wave radiation is very wide, and only radiation with a wavelength between 380-760nm can cause optical vision, that is, visible light. Light with a wavelength less than 380nm is ultraviolet and X-ray gamma radiation; Light above 760nm is infrared, radio waves, etc. They cannot produce vision to the human eye, that is to say, they cannot see. Therefore, light is an objective energy that exists and is closely related to human subjective feelings.
2. Color classification
Colors can be divided into two categories: non colored and colored. Non colored refers to the white, light gray, gray to dark gray, and even black series, known as the white black series. Pure white is an ideal object with complete light reflection, with a reflectivity of 1; Pure black is an ideal non reflective object with a reflectivity of 0. Therefore, the non colored white black series represents the change in the reflectivity of an object to light. We know that the reflectivity of light is directly proportional to brightness, and indoor white walls and ceilings can achieve higher brightness. Colors refer to various colors beyond the white and black series. Color has three characteristics: hue, brightness, and saturation, which are referred to as the three elements of color.
The color tone represents the color presented. It refers to the names of various colors, such as red, green, blue, etc. It is related to the wavelength of light. Brightness refers to the brightness of a color. The brightness of different color tones varies, and even if the same color tone is affected by the surface characteristics and light intensity of the object, it will still produce differences in brightness and depth. If it is also yellow, it can be light yellow, medium yellow, dark yellow, etc.
Saturation (chromaticity) represents the depth (intensity) of a color, and can also be said to be the purity and brightness of a color. The higher the saturation, the darker (thicker) the color, and various monochromatic lights in visible light are the most saturated colors. The more white light is added to the spectral color, the lower its saturation. For example, red light has a higher saturation than pink light because white light is combined with pink light. Generally speaking, in the same color tone, when the brightness changes, the saturation also changes. However, an increase or decrease in brightness can lead to a decrease in saturation. The saturation (purity) is only maximized when the brightness is moderate. However, in the impression, people always feel that colors with higher brightness look brighter.
3. Three primary colors and color matching methods
Red, green, and blue are known as the three primary colors. These three colors can be mixed in different proportions to produce different colors. There are two basic methods for color mixing: additive mixing and subtractive mixing.
The so-called additive mixing is a method of mixing different colored light rays together, adding them up in various parts of the spectrum to produce a new mixed color. The chromaticity relationship between light and color mixing is displayed. When the three primary colors of red, green, and blue are mixed in equal amounts, it is possible to obtain
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Issues to Consider in Stage Lighting Design
Stage lighting is one of the means of stage design. By using certain technological means, according to different plot developments, under different stage lighting mappings, it can play a role in highlighting the psychological changes of characters or rendering the atmosphere.
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Basic knowledge of stage lighting technology and industry development
Since the emergence of the stage, stage lighting has become an indispensable part of the stage. Stage lighting emphasizes four key elements: visual, realistic, aesthetic, and expressive. It has undergone many years of evolution.
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How many types of stage lighting are there
There are various types and specifications of stage lighting, which can be divided into the following four categories based on their purpose:
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