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Indoor lighting for small-scale continuous visual tasks

The ratio of the cost or workload of functional lighting and effect lighting in non-working areas should be 60% to 40% on average. Generally speaking, more attention should be paid to the lighting effect in such places than in continuous working places. For example, in such an environment, the general lighting fixtures in the working area are arranged regularly to ensure reasonable uniform illumination of the entire room, which is the worst method. Uniform illumination is not suitable for the requirements of some places, such as airport halls, department stores, theater lounges, etc., where the lighting requirements are beautiful, and good lighting must also be guaranteed for a few special working places in the room.

The working illumination required at the working position is the primary goal of the design. For example, the ticket counter at the airport terminal is a place that requires working lighting, and the required illumination can be equivalent to the minimum recommended value for office lighting. The uncomfortable glare at the working place should also not be higher than the standard of a general office.

As for the lighting of other parts, it mainly depends on the structure of the building. For example, for a room with four walls completely made of glass, it is unnecessary to require high vertical illumination.

We believe that in certain types of indoor lighting, insufficient attention is paid to the lighting of the human body, yet it is precisely the people in such open large spaces who are often the more obvious targets for any observer. Therefore, there is sufficient reason to require lighting design to make the people you see appear as beautiful as possible. For this effect, side lighting is generally better than top lighting, because under top lighting, the light reflected from the forehead of the person will deepen the vertical shadows on the face.

For any building with fixed seats or fixed sight lines, a simple design of side lighting can produce the desired effect. Design work in this area has recently proposed that side lighting must be directed downward from between 15° and 45°.