How does lighting design ethics exist?

Professional ethics embodied in lighting planning

So the problem, the so-called lighting planning ethics, reflected in where? Reflected in the professional, a typical example:

The following is a theater (Cinema) lighting design analysis:

Just imagine, what is the range of outdoor illuminance? As high as 100000lx, theater or cinema? If you just open the safe lighting will not exceed 10lx, we assume that the outdoor is 10000lx, the audience went to the theater room 10lx, the process of the eye suffered 1000 times the difference in the level of illumination.

From the perspective of the theory of dark adaptation, the difference in the level of illumination of 1000:1 adaptation, the average person may have to go through 15 minutes or even longer.

So in this case, what should a good lighting designer do?

Excellent lighting designer should judge, walking into the theatre from the audience in the indoor outdoor line entrance, lobby, corridor, corridor, lighting planning should be how to different levels of illumination in different locations with different illumination, the transition to help the audience gradually build visual comfort.

Figure: some visual range, dark vision, intermediate vision and clear vision.

For the above theater / theater example, we talk about the light and shade is just a matter of comfort or not, but in some cases, the relationship between light and shade is a security issue, such as tunnel lighting:

Figure: when the driver suddenly enters the tunnel from the outside, the dark visual effect makes the entrance of the tunnel lighting should be more bright than the interruption, and the vision of the entrance should be more than the entrance section of the dark.

Therefore, in the understanding of the value of different illumination value, but also to understand the effect of light and shade on people's visual effects, it should be said that the lighting designer's professional ethics.