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Flood Lights Show Objects In Different Planes And Components Jul 10, 2017

Flood Lights should not be "submerged in the ocean of light". By using more or less illumination or shadows in adjacent areas, flood lighting should be able to show the undulating contours of different planes and components of the object.

1, the incident angle

It is the shadow that will stand up and down, so the lighting should always be able to provide surface imaging, with positive angles on the facade of the light will not form a shadow, and the surface is shown as flat.

The shadow size depends on the surface relief and the incident angle of the light. The average illumination angle should be 45 ° (see Figure 1A). If the ups and downs are minimal, this angle should be greater than 45 °

2, the direction of lighting

In order for the surface illumination to look balanced, all shadows should be projected in the same direction, and all lamps that illuminate the surface in a projection area should have the same direction of projection. For example, if two lights are symmetrically aimed at the vertical direction of a surface, the shadows will be reduced and may be confused. So there may not be able to see the surface ups and downs. However, large protrusions can produce large, dense shadows. To avoid breaking the integrity of the façade, it is advisable to provide weaker illumination at an angle of 90 ° to the main light to weaken the shadows

3, viewing angle and lighting direction

In order to see the shadows and surface ups and downs, the lighting direction should be different from the viewing direction, the two directions should be at least 45 °. However, for monuments that can be seen from several places, it is not possible to strictly adhere to this rule, and the main observation points should be chosen, giving priority to this observation in lighting design.

4, flood lights

In urban contexts, it is often not possible to install floodlights in an ideal location. Should be adjusted at the scene based on the initial design of the lighting design in order to take into account the physical limits of the location and achieve the most satisfactory solution, such as taking into account the appearance of the fluorescent lamp, glare, maintenance and adjustment of the entrance.

The width of the beam produced by the Flood Lightsmay be larger or smaller depending on the position adjustment of the optical system and the light source in the lamp. By convention, the beam range of the Flood Lightsis equal to the beam axis

The peak luminous intensity of 50% of the luminous intensity of the direction to determine. The beam range of the circular symmetrical Flood Lightsis constant on each face, and the beam range of the rectangular Flood Lightsis usually oval, which is determined by the two values corresponding to the two symmetry planes.

In some applications, the light beam used is asymmetrical in the case of peak light intensity. In this case, the beam range is equal to 50% of the light intensity determined by the two half angles

When you can only see a large diameter column from one direction, you may have two effects. You can create an illuminated center area between two dark areas, or perform the opposite arrangement depending on the characteristics of the building's background.




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