Common light levels for stage lighting: 
In order to configure the professional stage lights, the first thing to know is the common light level of the stage lamps. This is an important part of the correct configuration.
1. Face light: The light that is directed to the stage from the top of the audience is mainly used for the front lighting of the characters and the basic light spreading of the whole.
2, slap: located on the outside of the mouth of the mouth, obliquely cast on the stage of the light, divided into upper and lower layers, the main auxiliary surface light, enhance the facial lighting, increase the three-dimensional sense of people and scenery.
3, column light (also known as side light): the light projected from the inside of the mouth of the mouth, mainly used for the illumination of the two sides of the character or the scene, adding a sense of three-dimensionality and contour.
4, top light: from the top of the stage to the stage of the light, from front to back is divided into a row of top light, two rows of top light, three rows of top light ... and so on, mainly used for stage lighting, enhance the stage illumination, and have The fixed-point illumination of many scenes and props is mainly solved by the top light.
5, backlight: the light projected from the opposite direction of the stage (such as top light, bridge light and other reverse illumination), can outline the contours of people and landscapes, enhance the sense of three-dimensionality and transparency, and can also be used as a specific light source.
6. Bridge Light: The light that is thrown to the stage at the bridge on both sides of the stage is mainly used to assist the column light, enhance the three-dimensional sense, and also be used for the orientation of other light inconvenient projections, and can also be used as a specific light source.
7. Foot light: The light projected from the platen in front of the stage to the stage, mainly assists the surface illumination and eliminates the shadow formed by the face and the jaw of the person illuminated by the high position such as the face light.
8, heaven and earth light: from the sky above and below the sky to the sky, mainly used for the lighting and color changes of the sky.
9. Flowing light: It is located on the flow light stand on both sides of the stage, mainly assisting the bridge light, supplementing the light on the sides of the stage or other specific light.
10, chasing light: the light position required from the auditorium or other positions, mainly used to track the actors to perform or highlight a specific light, but also used for the host, is a close-up of the stage art, to play the role of finishing touch.
Commonly used lamps and features:
1. Spotlight: It is one of the most widely used main types of lighting on stage lighting. At present, the market has 1KW and 2KW, which is the most widely used 2KW. The illuminating light is concentrated, the edge of the spot is relatively clear, and a part can be highlighted, and an area of ​​the spot can be illuminated to be used as a main light source of the stage, which is often used for light positions such as face light, slap light, and side light.
2, soft light: soft and well-balanced light, can not only highlight a certain part, and there is no blunt spot, easy to connect several lights, common 0.3KW, 1KW, 2KW and so on. It is mostly used for close-range light positions such as column light and flowing light.
3. Backlight: It is a kind of reflective lamp, which is characterized by hard light quality, high illumination and long range. It is an economical and efficient high-light lamp. The main ones are 0.5KW and 1KW. 2KW, etc., used most at 2KW.
4, astigmatism: light diffused, all said, large projection area, divided into volcano and astigmatism, common 0.5KW, 1KW, 1.25KW, 2KW, etc., mostly used for skylight illumination, can also be used for theater chairman Universal illumination of the station.
5, modeling lamp: the principle between the chasing light and the spotlight, is a special kind of lighting, mainly used for the shape projection of characters and scenery.
6, foot light (also known as strip light): soft light, a wide area. Mainly as a medium-view, net view lighting, cloth color, but also can be used in the position of the entrance to the auxiliary surface lighting.
7, light column lamp (also known as downlight): currently used more widely, such as PAR46, PAR64 and other models. It can be used for lighting of people and scenes. It can also be installed directly on the stage, exposed to the audience, forming a light array, and playing the role of stage decoration and lighting.
8, shooting slides and canopy effect lights: can form an overall picture on the stage canopy, and a variety of special effects, such as: wind, rain, lightning, electricity, water, fire, smoke, clouds and so on.
9. Computer light: This is a kind of intelligent light controlled by DMX512 or RS232 or PMX signal. Its light color, spot and illumination are better than the above conventional lamps. It is a kind of intelligent lamp developed in recent years, often installed in the surface light, The position of the top light, the stage back step, etc., the running color, shape, figure, etc. can be programmed. Due to the different power levels, there are differences in the use on the stage. Generally, low-power computer lights are only suitable for ballroom use. On the stage, low-power computer lighting lines and spots are often talked about by stage spotlights and backlights, so pay special attention to the selection.
10, chasing light: is the stage lighting fixture, characterized by high brightness, using lens imaging, can present a clear spot, by adjusting the focal length, but also can change the spot. There is an activity light bar, which can be easily changed color, and the lamp body can be freely operated. At present, there are many varieties in the market, and the method of labeling indicators is different. The power is the standard such as: 1KW halogen tungsten light source, 1KW xenon light source, 1KW metal halide light source, 2KW metal halide light source, etc. Lights (light intensity, illuminance at a certain distance), such as 8-10m chasing light, 15-30m chasing light, 30-50m chasing light, 50-80m chasing light, etc., and functionally distinguished as: The mechanical follow-up light, its focusing, light bar, color change are all done manually; the other is computer chasing light, its focus, light bar, color change, adjustment color temperature are automatically completed by push-pull electrical appliances, so in Be sure to carefully select various indicators when choosing.
The basic introduction of lighting:
First, chasing light
The chasing light is the most common light on a wedding. It is a kind of luminaire that can be followed by a new person or host by manual operation. It can be placed anywhere, and the shutter can change the aperture and adjust the spot size. The follow-up light is divided into 575 kW, 1200 kW, 2500 kW, etc. according to the power. The specific parameters are determined according to the size of the hotel and the distance according to the new person. In some places where the venue is relatively large, the light level of the chasing light frame from the top to the top will be more conducive to its role.
Second, PAR lights
The PAR64 lamp (ie downlight) is the most common light on our wedding except the follow spot light. It is usually used to supplement the character light and ambient light. The PAR lamp can emit a strong, fixed, parallel beam. According to the bulb Different, it can be divided into three types:
1. CP60 Its light bulb is transparent, the emitted light beam is very narrow, and the light collecting effect is better.
2, CP61 Its bulb is frosted, so that the beam can be more evenly dispersed, than the beam emitted by the CP60 to divergence.
3, CP62 Its bulb is a mesh-like matte, the light emitted is astigmatism, very soft and even, compared to CP60, CP61, its beam is the most uniform.
Third, the backlight
The backlight can produce a beam with narrow parallel and no exact edge. Its light spot is fuzzy, suitable for a more uniform and soft lighting effect, and can be used as a face light. It is ideal for outdoor or larger venues because it is projected very far, at least 20 meters.
Fourth, imaging lights
The imaging lamp can obtain light with a narrow beam, strong sense of direction, and sharp edges. The smaller its beam angle, the farther the range. The clear beam of the imaging light is ideal for creating a beam of people in the dark field, as well as a beam of light that is intended to highlight the part of the table flower and the road. It can also put GOBO pieces like a computer moving head light to form a pattern.
Fourth, the computer moving head light
The computer moving head light is a 360°, rotatable and adjustable smart light fixture. Its brightness, the size of the spot, the virtual reality of the spot, the size of the beam, the concentration and astigmatism, the transformation of the color, the transformation of the pattern, etc., can all be adjusted and changed in real time. Computer moving head lights are often used for rendering live beams, new-person themed LOGO lights, colors and patterns to decorate the hotel environment or stage background. Because of its adjustability, it can be programmed in advance according to the wedding session and style, making it a multi-purpose. It is used more for ambient light.
Five, LED dyeing lights
This is the most controversial light at the wedding. It has a strong beam and has some functions of computer dyeing lamps, such as stroboscopic, discolored, etc., with low power. The LED is a high color temperature luminaire, and the light color tone emitted by the scene for ambient light will be cold, so try to avoid it and the low color temperature luminaire projecting in the same area.
When using LED staining light, it should be avoided to be projected on the person's face and body. It is more suitable for projection on the stage background or passage and wall, and can be used as ambient light in the scene.
LED dyeing lights, if used properly, will avoid the late shooting problems mentioned in our article.
Six, floodlights
The floodlights have a relatively uniform light and a large range of light, making them ideal for large areas or background lighting. A row of floodlights on the top of the background is called a daylight. The row below the background is also called a row of lights. The use of floodlights on the background can make the fabric more layered and make the background more prominent.
These are the common lights on the wedding. Of course, I don't have many of them listed, such as closing lights, computer staining lights, audience lights, and so on. In fact, every kind of luminaire has its unique role. We need to make actual matches according to the atmosphere of the wedding, the theme color, the link, the customer budget, the hotel venue and so on.
In fact, the lights on the wedding are now divided according to their functions. I am used to dividing them into character light and ambient light. Ambient light is the color of the entire scene, such as LED staining lights, moving lights, etc., which are often used by everyone. The lighting engineer will design according to the wedding session and theme. One point to note is that ambient light is used to render the environment, but not as a character light. Some lighters use the LED lamp as the main light source to hit the new person's face. The first is this high color temperature light. It will make the picture quality of the post-production picture very hard and not soft, and then its color will make the new person face with ambient light, which will make the new person's face or body "discolor". In fact, based on the problem of color temperature, most of Dreamland uses the most common PAR64 lighting with color film for dyeing. Its price is cheaper than LED, and such dyeing is mild, uniform, real and natural. The only shortcoming is the power consumption. Very high, some sites that do not reach the power should be used with caution.
The above is the ambient light, then the next is the character light. The most important thing about a wedding is the light of the characters. Let us first consider the ambient light after the light of the characters. According to the light position, we divide the following:
1, the front light is in the horizontal position 0 - 10 degrees
2. The front meter is in the horizontal position 20-30 degrees
3, the middle side light is in the horizontal position 40 - 50 degrees
4, the metering is in the horizontal position 60 - 90 degrees
5, the side backlight is in the horizontal position 110 - 120 degrees
6, the contour light is in the horizontal position 135 - 160 degrees
7, the backlight is in the horizontal position 170 - 190 degrees
Front light: The face of the character is very bright and has no three-dimensional effect. This kind of light is not suitable for a round square face, but it is a powerful lamp for expressing the youth and youthfulness of the character.
Front side light: It is a good lamp position as auxiliary light, which will soften the light and enrich the level.
Mid-side light: It is often used as the main light of the character light. It is about 45° angle, which can accurately control the distribution of light and shadow, which is very suitable for the position of the follow-up light.
Sidelight: In the performances of the art, the side light is indispensable and plays an important role in the characterization of the actors' lines.
Side backlight: easy to produce the effect of sunlight, the side of the nose, the cheekbones, the forehead, the back of the head has a high light effect, the hair presents a certain texture.
Contour light: creates a continuous edge of light on the head and shoulders of the character, separating the head from the background so that the characters in the vision no longer cling to the background.
Backlighting: Emphasizes the outline of the head and shoulders of the character, separating the layers of the characters and the background, often used as a function in the performances.
There are so many light levels listed above, but in practical applications, it may be necessary to actually illuminate according to the budget of the venue and the newcomer. Although not every light level can be considered, after understanding the effects of these light positions, There may be some basic references when it comes to light. Even in the smallest wedding, if there are only two follow-up lights, we should also know the best position for the follow-up lights according to the newcomer's position. Of course, if conditions permit, we can have more The angle is light, which makes the new person more full of three-dimensionality.
In practice, some lights can also be used for a variety of lights, such as the most common follow-up lights, PAR64 lights, when the newcomers face the stage can be side and back light or contour light, backlight, but when the newcomers face the audience In the meantime, these lights can also be used in reverse to act as front light, side light, and the like.
Hydraulic Cable Tensioner
The stringing hydraulic tensioner machine is composed of the main and driven wheels fixed with wheel groove liners arranged in parallel, and two or more wheel groove liners are also fixed on the main and driven wheels. When the conductor is pulled by external force, two wheels rotate, and only the driving wheel with large diameter is affected by external braking force. The materials with different friction coefficients are selected to make the wheel groove gasket to make the conductor bear uniform force, avoid the phenomenon of the conductor playing a lantern, protect the conductor and make the tension wheel release the conductor at a uniform speed. At the same time, the weight of the whole machine is reduced, the volume is reduced and the cost is reduced. Each friction wheel uses a hydraulic motor to drive the star gear, which has high transmission efficiency and will not damage the wire due to the setback when the film is stopped and restarted. The friction wheel has a special pad to protect the conductor, which is easy to replace and ensures a service life of up to 1200 working hours. Patented automatic rope fixing with grounding and wire pressing function.
The cable stringing tension machine is used for tension stretching and reverse pulling of single conductor in flat, mountainous and hilly terrain. Hydraulic cable tensioner machine is a kind of mechanical equipment which can provide resistance moment to make conductors, ground wires and optical cables spread through double drums under a certain tension. It is used to tense one or more conductors, ground wires and optical cables to obtain good tension state.
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