The large-area lighting techniques of stage lights for performance stages in gymnasiums

In the large-scale lighting of the performance stage in the gymnasium, the core lies in achieving a balance between high brightness, uniform coverage and dynamic changes through reasonable layout of lamps and control of light effects. The following is elaborated from four dimensions: lamp selection, layout strategy, light efficiency control and emergency support:

First, lighting selection: Hardcore equipment suitable for large Spaces

High-brightness LED par lamp

High-power LED par lights (such as 300W or above) are selected as the basic lighting, which feature high luminous efficiency and low heat generation, making them suitable for long-term performances. In a concert, dozens of LED parapet lights are usually placed around the stage, and the brightness and color are synchronized through DMX control to meet the illuminance requirements from the warm-up to the climax.

Oscillating beam lamp

Multiple oscillating beam lamps (such as those with a beam Angle of 15R or more) are configured to create dynamic light effects. During rock performances, beam lights can quickly sweep across the entire venue in rhythm with the drumbeats, forming a "light net" coverage in combination with laser effects, enhancing the on-site appeal.

Imaging lights and pattern lights

Use imaging lights to project logos or textures, while pattern lights (such as GOBO lights) can project dynamic light and shadow. During the opening ceremony, the imaging lights projected the organizer's logo onto the sky screen, and the pattern lights changed the light and shadow patterns in accordance with the rhythm of the music, enhancing the visual layering.

Second, layout strategy: Three-dimensional optical domain coverage

Top light matrix

Install multiple sets of LED flat panel lights or spotlights on the ceiling of the gymnasium to create uniform top lighting. For instance, 20 groups of LED flat panel lights are distributed at intervals of 5 meters to ensure that the illuminance at the center of the stage reaches over 1500lux, meeting the requirements of high-definition live streaming.

Side light encirclement

Multiple layers of side lights are set up on both sides of the stage, including LED par lights, beam lights, etc. In a dance performance, side lighting can change according to the Angle of the actor's movements, creating a three-dimensional effect of "light following the person's movement", avoiding flat lighting.

Floor lighting effect

Embed floor tile lights or wall-washing lights at the front of the stage to project light and shadow upwards. At the electronic music festival, the floor tile lights change in brightness along with the bass rhythm, creating an immersive experience of "light waves spreading from under the feet", enhancing the audience's sense of participation.

Third, light effect control: Creating a dynamic atmosphere

Partition control

The stage is divided into the front area, the middle area and the back area, and the illuminance standards are set respectively. For instance, the front area has an illuminance of 2000lux (suitable for close-ups of singers), the middle area 1500lux (suitable for band performances), and the rear area 800lux (suitable for background rendering), all of which are precisely regulated through the DMX controller.

Light and color narrative

Preset multiple light color schemes and switch them according to the performance rhythm. In the musical, warm golden tones are used for heartwarming scenes, cold blue tones for suspenseful segments, and blood red strobotic tones for climax conflicts. The changes in light colors are in sync with the plot development.

Sound and light linkage

Install a decibel sensor to convert volume data into light instructions. When the on-site volume exceeds 90dB, the full-field stroboscopic effect and laser grid are triggered. When the volume drops below 70dB, switch to a slow light wave to form a resonant closed loop of "sound - light and shadow".

Fourth, emergency support: Stability and compatibility

Redundant power supply

A dual-circuit power supply system is adopted to ensure the stable operation of the lighting equipment. In large-scale performances, the main power supply and backup power supply are automatically switched to prevent the lighting from being interrupted due to power outages.

Equipment compatibility

Select lighting equipment that supports multiple protocols (such as DMX512. Art-Net) to ensure seamless integration with systems like the console and audio system. When cross-brand devices are used interchangeably, unified control is achieved through a protocol converter.

Quick maintenance

Set up a lighting repair passage and a spare lighting fixture warehouse to ensure that faulty equipment is replaced within 10 minutes. During the performance, if a certain lamp fails, the spare lamp can be immediately activated and reprogrammed through the control console to avoid affecting the overall effect.