In lighting design, often encounter need to adjust the beam Angle of lamps and lanterns of problem such as LED tube light, and different light beam Angle of irradiation effect could not be more different.
To analysis the problem in this.
First of all, what is the beam Angle of lamps and lanterns?
As a result of the lamps and lanterns out just a light range.
From the optical axis of the tangent plane, the scope of a light of the Angle formed by the border of, is the actual beam Angle.
Then, LED tube light, how many kind of beam Angle?
According to its reflective cup light Angle design, usually have a narrow, medium, three wide beam Angle.
Among them, the narrow beam Angle refers to the lamp cup out of the light Angle in 40 & deg;
Within the 6 & deg;
8度;
,10度;
12度;
15度;
,20度;
,25度;
,30度;
40度;
These angles.
Beam Angle refers to the lamp cup out of the light Angle in 90 & deg;
I. e. in within 45 & deg;
50度;
,60度;
90度;
Between the point of view.
Wide beam Angle also refers to the lamp cup light Angle > 90 & deg;
Angle of the light which is 120 & deg;
And so on.
Take a look at the LED tube light effect of different light beam Angle of the differences.
如果- - - - - -
ICS0500 series of
LED spotlights has several main beam Angle & 10 deg.
,20度;
,30度;
,60度;
, in the selected one of the three angles (
10°
,20度;
,30度;
）
。
Under the strong contrast, do not let us see the plaster statue of detail, and the beam Angle is too small, result in statue did not show in front of our eyes.
20°
The beam Angle is better than 10 & deg;
Beam Angle effect is much better, texture and character of plaster statue of expression can be a good show.
30°
Angle of light cup irradiation range is big, but its minimum light intensity in the centre, formed on the surface of the irradiation of light make statue more downy.
But due to the large Angle of light beam, the background wall and the statue to mix together, so in 10 & deg;
And 20 & deg;
Beam irradiation Angle statues are put together, it will be difficult to attract the attention of people.
That is to say, the same same power tube lamp, the lamp cup of beam Angle, the greater the intensity, the smaller the center, the light more soft;
On the contrary, the smaller the beam Angle, the central light intensity, the greater the harder out of light.
Similarly, when this
led downlights used in the airport of indoor lighting project, in different terminal functional areas, such as the departure hall, barrier, lounge, baggage, etc. , are suitable for the lamp cup of beam Angle also each are not identical.
So in practice, we need to bring brightness projection distance, Angle, and the environment to make a comprehensive consideration, and then according to their own need to choose different beam Angle of the lamp cup.
In general, it is suggested that everyone in the process of LED tube light, type selection, pay more attention to the problem of beam Angle and adaptation to environment.
Choose the lamps and lanterns at the same time, more reasonable use of lamp cup of conjunction of the beam Angle, to be as content to build a more ideal result.
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