What is a beam moving head? | KIMU Guide

What is a Beam Moving Head?

Understanding beam moving heads is crucial for lighting professionals. These powerful fixtures offer precise control and dramatic effects, but choosing the right one can be challenging. This article clarifies their functionalities, applications, and key features.

How Beam Moving Heads Work

A beam moving head is a type of automated lighting fixture characterized by its intensely focused, narrow beam of light. Unlike wash lights which flood a larger area, beam moving heads project a powerful, highly collimated beam capable of traveling significant distances. This is achieved through a high-intensity discharge (HID) lamp or, increasingly, high-powered LEDs, combined with precise optical systems including lenses and gobos (metal templates that create patterns). The moving head aspect refers to its motorized pan and tilt mechanisms, allowing for dynamic and intricate light shows.

Key Features and Specifications

Several key specifications distinguish one beam moving head from another. These include:

Light Source: HID lamps (typically metal halide or short-arc) offer immense brightness but are less energy-efficient and have shorter lifespans compared to LEDs. LEDs are becoming increasingly popular due to their energy efficiency, longer lifespan, and color-mixing capabilities.

Beam Angle: This specifies the narrowness of the beam. Smaller beam angles (e.g., 1-4 degrees) create a more intense, laser-like effect, while wider angles offer greater coverage.

GoBo Wheel: This allows for projection of various patterns and textures, adding visual interest and complexity.

Prism: This adds a sparkling, multifaceted effect to the beam.

Color Wheel: Many models include a color wheel for mixing and changing colors dynamically.

Pan and Tilt Speed: The speed and precision of the pan and tilt motors are crucial for creating dynamic lighting designs.

Applications of Beam Moving Heads

Beam moving heads find extensive use in various applications:

Live Events: Concerts, theatre productions, and corporate events all utilize beam moving heads to create impactful visual displays.

Nightclubs and Bars: Their dramatic effects enhance the atmosphere and create a visually stimulating environment.

Architectural Lighting: For highlighting architectural features and creating eye-catching outdoor displays.

Television and Film: Used to create dramatic lighting effects and special visual effects.

Choosing the Right Beam Moving Head

Selecting the appropriate beam moving head depends on your specific needs and budget. Consider the venue size, desired effect, budget constraints, and the overall lighting design when making your decision. Factors such as power consumption, lamp life, and maintenance requirements should also be factored in.