Glare is lighting that makes people feel uncomfortable
The brightness in our field of view
Much more than our eyes are used to
Or the light contrast is too large
As a result, our eyes are disturbed and uncomfortable, and even vision is impaired
In the selection of tube spotlights, the reasonable choice of beam Angle
It's also a common way to avoid glare
So what exactly is the beam Angle?
It's usually brightest right below the light source,
The principal axis from which the light source intensity is strongest
To the Angle formed between 50% of the luminous intensity on both sides
This is called the beam Angle
One light source
[The larger the beam Angle is] the smaller the central light intensity is, the softer the spot is.
[The smaller the beam Angle is] the stronger the central spot is, the stiffer the spot is.
In general, the beam Angle of the tube spotlight ranges from 10° to 60°
Common ones are 10°, 15°, 24°, 36° and so on.
The beam Angle of the ceiling lamp is about 140°.
The most common beam Angle we use in the home space is 24°
