Membrane structure landscape waiting shed

There are generally three visual factors affecting the film structure waiting shed:

1. Photosensitive level

People have a high perception of light intensity, because the brightness range that the human eye can feel is large. Membrane structure waiting shed The brightness of the film surface is not only related to the actual brightness, but also related to the background. The contrast of strong diffuse light entering the room is low and there is no shadow. Users may confuse this phenomenon with insufficient illumination. As a result, users of membrane structures complain about the lack of illumination, although field tests show that the actual indoor illumination is much greater than that required for similar activities in traditional buildings. 2. 3D vision

The perception of three-dimensional scale of objects is deeply affected by the lighting effect, which can be expressed by the vector scalar ratio. The vector scalar ratio refers to the ratio of the intensity and direction of the beam reaching a point to the total luminous flux reaching the point. When an object is directly illuminated by a light source or is illuminated through transparent glass, its vector scalar ratio is higher, and the three-dimensional effect is better. However, in the membrane structure building room, the divergence of the transparent membrane material makes the indoor light transition uniform, thus weakening the three-dimensional sense of the structure, and it is difficult for the human eye to distinguish the three-dimensional and plane. Therefore, in a membrane building with very uniform diffuse light, people have poor perception of the direction and spatial position of objects.

3. Light distribution

Although the diffuse light in the membrane structure shelter reduces the contrast of different sides of the object, the brightness of the roof differs greatly from that of other indoor walls. Although the human eye has a strong adaptability to light intensity, the acceptability of light dark ratio is limited. Because of the topological form of the membrane structure, most people's eyes will focus on the bright ceiling. If the background brightness is much stronger than the object being watched, it will produce a masking effect, which is particularly prominent when using display devices. As the human eye adapts to the high brightness of the membrane surface, other walls appear darker than the actual situation. Although the indoor natural light has been greatly improved, the interior still gives a feeling of "dim" on the whole. This problem can be solved by using reflective wall decoration materials or opening glass holes to direct natural light to the lower part of the room.