LED flat light lighting techniques

1 station broadcast in the form of lighting

station is an important form in news programs, in the news, weather, interactive, review, etc. There are more cases in the each type of program. Standing relative to other ways to broadcast more flexible. Usually in large screen or light box as the background. A single fixed station information, can be based on three lighting lighting, each position using 3 ~ 5 LED flat light only; If walking is a regional scale, can make a continuous uniform surface with flat lamp light area. Walking according to size, can be in every about 1. Decorate a flat light, the width of 5 m for lighting. Backlight size and studio - to choose according to the scope of the mobile plate lamp or the spotlight. The main direction of surface light and is consistent with the direction of the camera. The distance between the host and large screen background should be in 1. More than 5 m, if it is a big distance between the LED screen, depending on the distance to a larger, in order to avoid the camera Moore lines and stray light interference on the screen.

2 sit on forms of lighting

sit multicast is the current politics news, the people's livelihood news, interview program multi-purpose program form. For single, double and many people have different ways of lighting. Improved the basis of single lighting lighting usually in three, can increase the number of flat light and perfect Angle to create a host lighting uniformity. Face light lighting, each host USES 3 ~ 5 LED flat light as the primary side of a single host only light, side light. Backlight can use the same color temperature LED spot light or commercial ceiling lamps, light area control and host contour lighting is more effective. Use eye lamp under the table on the broadcast table, dilute the host facial shadow. Double more than lighting and lighting, to consider each a specific role in the direction of the light. Sometimes want to consider one lamp is multi-purpose, for example, both as a facilitator of the side light, and to take into account the host b backlight; Sometimes to do specialized lamp, in two or more hosts to sit under the condition of close distance. Use block, oh, the black flag board to avoid stray light affect the other host the face.

some news programs need to host in the process of program according to different flight Angle of rotation, for example, medium shot at an Angle, close-up lens 5 degrees rotation; ~ 15 degrees; The scope of the even bigger. Then consider different scene lighting layout, such as, whether you need according to the rotation two lighting program, or with an emphasis on the main lens for lighting.

3 virtual/keyer

for virtual blue box or green box when the lighting should be paid attention to the following:

the host range of mobile don't stand too close to the wall, keep a certain distance, avoid blue or green reflective have an impact on the host;

enclosure of lighting to evenly. Housing illumination lighting intensity of illumination should be slightly lower than characters;

if combined with virtual and real situation, pay attention to the combining site of illuminance is consistent, avoid dark space.

4 precise lighting program

often host is not the same shape. In programming every show lighting application, should according to all the host of this show, targeted for each host light fine-tuning. For example: the face is full of the host can reduce the brightness of the light proportion, the host of the lean for facial should increase the brightness of the light side ratio; Hairstyle more ate the host should increase the brightness of the backlight, hair easy reflective host reduce the brightness of the backlight, so on. For each episode, each host, lighting program will be more fine for processing.

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