Lighting environment evaluation method and lighting environment evaluation device

Abstract

The disclosed lighting environment evaluation method involves: a step in which a prescribed surface is designated in a lighting space to be evaluated; a step in which a designated observation point on the aforementioned prescribed surface is designated; and a step in which, on the basis of information relating to reflective objects that reflect the light in the aforementioned lighting space and information relating to the lighting equipment provided in the aforementioned lighting space, the illuminance at the aforementioned designated observation point from only the indirect light from the aforementioned reflective objects is calculated, and the calculation result is set as the index of brightness sensation of the aforementioned lighting space.

Description

technical field [0001] Embodiments of the present invention relate to a lighting environment evaluation method and a lighting environment evaluation device. Background technique [0002] Lighting (surname) has a great influence on the comfort of an office environment or a residential environment. As an evaluation method of this lighting environment, horizontal plane illuminance may be used. In the Japanese Industrial Standard (JIS), an illuminance standard using horizontal plane illuminance is prescribed for indoor lighting and the construction industry. [0003] In the lighting design, the evaluation method of the lighting environment using the horizontal plane illuminance is mainly applied. However, the horizontal plane illuminance is an index indicating the light beam per unit area incident on the floor or the tabletop, not the light reaching the human eye, and cannot always properly evaluate the impression of space. [0004] On the other hand, in recent years, an eval...

AI Technical Summary

Problems solved by technology

[0006] However, although the geometric mean luminance can be calculated by taking photos of existing spaces, when it is not possible to capture luminance distribution images such as indoor spaces before completion, simulation based on light distribution data (data) is necessary. )

Simulation based on light distribution data requires time and labor using computer graphics software, and it is not possible to simply calculate the luminance distribution in a specific area

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