What is the Angle of Light (Degree)?

What is the angle of light? In summary to answer the question; light anglerefers to the direction of the rays emanating from the light source. Light angle degree (°). The angle value showing how the light spreads is defined as narrow if it is between 5 and 45 degrees and wide if it is between 45 and 120 degrees. Narrow-angle or wide-angle lighting fixtures are selected in accordance with the environment in which they will be used.

The light angle is selected based on the distance of the lighting source to the objects. In this sense, while the ceiling height is important in indoor environments, the height of the pole or installation location is taken into account in outdoor areas. Narrower angle luminaires are preferred for higher places. If a wide-angle light source is positioned at a very high point, the light will be scattered before reaching the objects. For this purpose, trigonometric calculations can be made.

How to Measure the Angle of Light?

After the question "What is the angle of light?", the measurement of the angle is also a matter of curiosity. It is not possible to determine the two endpoints sharply in the area where the light is scattered. The angle of light from the lighting fixture can be measured by the FWHM method. "FWHM", which stands for "Full Width Half Maximum" in English, means "Full Width Half Maximum" in Turkish.

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How to Adjust Bar LED Light Angle?

Rod LED modelsas standard 120° light angle provides. The light angle of the luminaire can be changed according to the special requests specified in the project or specification or according to the needs. In such cases, the light angle reflector or lens can be taken under control by means of such materials.

Reflectors made of glossy materials are usually positioned behind the luminaire and perform the reflection task. Lenses made of optical materials are in front of the luminaire and focus the light from the source. Thus wide angle bar LED light angles of 30°, 60° or 90° can also be achieved.