Key points for selecting the beam Angle and illumination range of stage lights

Clarify the requirements of the performance scene

Different types of performances have completely different requirements for the beam Angle and illumination range. Clearly understanding the performance scene is a key prerequisite for choosing stage lights.

Small-scale indoor performances: such as small-scale dramas and indoor concerts, etc., have relatively limited performance Spaces. At this point, stage lights with a relatively narrow beam Angle and a relatively concentrated illumination range should be selected. Narrow-beam Angle lighting can precisely focus on actors or specific props, highlighting the key points of the performance, avoiding the dispersion of light into unnecessary areas, and enhancing the layering and visual focus of the stage. For example, in a small-scale drama scene, narrow-beam lights are used to focus on the protagonist, keeping the audience's attention focused on the protagonist's performance all the time.

Large-scale outdoor performances: such as large-scale concerts and outdoor drama festivals, etc. The performance venues are spacious and the audience is widely distributed. This requires the selection of stage lights with a wide beam Angle and a large illumination range to ensure that the entire stage and the audience area can receive sufficient lighting. Wide-beam Angle lights can cover a larger area, creating a grand and stunning stage effect. For instance, at large-scale concerts, wide-beam lights can illuminate the entire stage and the audience seats, allowing the on-site audience to experience a strong visual impact.

Special scene performances: For some performances with special scene requirements, such as local light and shadow effects in dance performances and the creation of a mysterious atmosphere in magic shows, it is necessary to select the appropriate beam Angle and illumination range of lighting according to the specific effect. For instance, in dance performances, lights with adjustable beam angles are used to create various light and shadow patterns on the stage, adding an artistic touch to the dance.

Understand the relationship between the beam Angle and the irradiation range

The beam Angle and the illumination range are closely related concepts. Understanding the relationship between them is helpful for accurately purchasing stage lights.

The beam Angle is directly proportional to the irradiation range: Generally speaking, the larger the beam Angle, the wider the irradiation range. The smaller the beam Angle is, the more concentrated the irradiation range will be. For instance, stage lights with a beam Angle of 10° have a relatively narrow illumination range and are suitable for scenes that require precise focusing. The stage light with a beam Angle of 40° has a much larger illumination range and can be used to illuminate a larger area.

Consider the distance factor: The beam Angle and the illumination range are also affected by the distance between the light and the illuminated object. Under the same light power and beam Angle, the farther the distance, the larger the illumination range, but the light intensity will gradually weaken. Therefore, when making a purchase, it is necessary to comprehensively consider the beam Angle and distance factors based on the actual size of the stage and the installation position of the lighting to ensure the ideal illumination effect is achieved.

Pay attention to the type of lamps and the characteristics of the beams

Different types of stage lighting fixtures have different beam characteristics. Understanding these characteristics can help select lighting fixtures that are more suitable for the performance requirements.

Spotlight: The beam Angle of a spotlight is usually narrow, generally between 10° and 30°, capable of generating highly concentrated beams. The illumination range is relatively small, but the light intensity is high, making it suitable for highlighting actors' facial expressions, prop details, or key areas on the stage. For example, in theatrical performances, spotlights are used to illuminate the faces of the main characters, allowing the audience to see the changes in the actors' expressions more clearly.

Imaging lamp: The imaging lamp can project various clear patterns and shapes, and the beam Angle can be adjusted as needed. It can not only generate a relatively narrow beam for precise lighting, but also expand the illumination range by adjusting the beam Angle. It is often used to create a specific scene atmosphere or highlight stage elements. For instance, when depicting ancient architectural scenes, imaging lights can project architectural patterns onto the stage background, enhancing the sense of reality of the stage.

Soft light: The light of a soft light is soft and uniform, with a relatively large beam Angle, generally between 30° and 60°, and a wide illumination range. It is mainly used to provide basic lighting, reduce shadows and reflections, and make the overall lighting on the stage more natural and comfortable. For example, in indoor song and dance performances, soft lights are used to illuminate the entire stage, making the actors' performances more natural.

Consider adjustability and flexibility

To meet the requirements of different performance scenes and lighting effects, stage lights should have a certain degree of adjustability and flexibility.

Adjustable beam Angle: By choosing stage lights with adjustable beam angles, the width and illumination range of the beam can be adjusted at any time according to the actual performance needs. This flexibility enables lighting technicians to create diverse lighting effects according to different plots, performance forms and stage layouts. For example, in a performance, according to the development of the plot, the Angle of the light beam is changed from narrow to wide to achieve the transformation from local focus to overall illumination.

Adjustable illumination direction: In addition to the beam Angle, the illumination direction of the stage lights should also be adjustable. This enables the lighting technician to flexibly adjust the Angle of the light according to the actor's position and performance movements, ensuring that the light always accurately shines on the required areas. For example, in a dance performance, as the dancer moves, adjust the direction of the light illumination to always illuminate the dancer's figure.

Test and evaluate the actual effect

Before making the final purchase decision, it is very necessary to conduct actual tests and evaluations of the stage lights.

On-site testing: If conditions permit, install the candidate stage lights in a simulated performance environment for on-site testing. Observe whether the beam Angle and irradiation range are in line with expectations, and whether the light quality and color reproduction of the lights meet the performance requirements. For instance, during the testing process, check whether the light has issues such as color cast or flickering, as well as whether the edges of the beam are clear and uniform.

Refer to professional advice: You can consult experienced lighting technicians or stage technicians and listen to their opinions and suggestions on the angles and illumination ranges of different stage lighting beams. They have accumulated rich experience in practical work and are capable of providing more professional purchasing guidance based on performance requirements and stage characteristics.