How to design the beam angle of LED tri-proof lamp to meet different application requirements

As an energy-efficient and complex lighting product, LED tri-proof lamps have a direct impact on lighting effects and user experience due to their beam angle design. The beam angle determines the light distribution range and intensity. Reasonable design can improve lighting uniformity, reduce blind spots and glare, and meet lighting needs in different scenarios. Especially in diversified application environments such as industrial plants, warehouses, and tunnels, the optimization of beam angles is particularly critical.

Basic concepts and measurement methods of beam angles

Beam angle refers to the angle when the luminous intensity of the lamp drops to half of the maximum value. It is generally expressed in degrees (°). The larger the angle, the wider the illumination range but the more dispersed the light intensity; the smaller the angle, the more concentrated the light and the higher the brightness. The beam angle is usually measured using a photometric distribution curve, which is obtained through professional optical equipment to ensure that the data is accurate and reliable.

Requirements for beam angles in different application environments

Industrial plants and workshops: Usually require a wider beam angle (100°~120°) to ensure uniform overall lighting in the work area. A larger angle can effectively cover a wider space, reduce shadows and dead spots, and improve work efficiency and safety.

Warehousing and logistics: The space of the elevated warehouse is high and the passage is narrow. It is more appropriate to use a medium beam angle (60°~90°), focusing on the shelf passage, improving the clarity of goods identification, and reducing light waste.
Tunnels and underground passages: Due to the closed space and uniform lighting requirements, it is recommended to use a wider beam angle (120°~140°) to avoid visual fatigue caused by uneven lighting and meet safety standards.
Outdoor factory areas and parking lots: Such places usually require long-distance lighting coverage, and are suitable for narrow beam angles (30°~60°) to achieve long-range light, improve brightness concentration, and reduce light pollution.

Technical implementation means of beam angle design
Optical lens design: Through lenses of different shapes and materials, the refraction and focusing of light are achieved. The lens parameters directly determine the beam angle, and commonly used ones are spherical lenses, aspherical lenses, etc.
Reflector design: High reflectivity materials are used, and the shape of the reflector adjusts the light distribution to achieve the desired beam diffusion or concentration effect.
LED arrangement: Reasonable layout of LED chip arrangement, control of the light-emitting angle of a single LED and the overall light synthesis, affecting the final beam angle.
Lamp cover structure: The cover design not only affects the protection performance, but also assists the uniform distribution of light through different textures and shapes to improve the overall optical performance.

Comprehensive considerations for beam angle design
The size and shape of the application scene space determine the size and distribution pattern of the beam angle.
Illumination standard requirements, different industries and regions have strict regulations on light intensity uniformity and brightness.
Installation height and installation method affect the distribution and uniformity of light reaching the ground.
Balance energy efficiency and cost, beam angle design should take into account both lighting effect and manufacturing cost.
Environmental conditions, such as the impact of dust and humidity on the optical structure of lamps, need to consider protection compatibility during design.