Application of Microscope Imaging Detection Technology in Physical Lighting Detection of Buildings

  • Ding Ding
Keywords: Scanning Microscope, Natural Lighting, Evaluation Index, Effective Brightness, Effective Brightness Ratio


The combination of high resolution scanning tunneling microscope (STM) and high sensitive optical detection
equipment can achieve high resolution characterization and detection of single molecule photoelectric behavior
in space, time and energy. At present, daylighting evaluation indexes are mainly based on illumination. This
static evaluation cannot reflect the change of natural illumination with time, so dynamic daylighting evaluation
indexes are needed. Aiming at the defects of existing illumination evaluation indexes, this paper proposes a new
lighting evaluation index, namely effective brightness and effective brightness ratio. The purpose of this paper is
to verify the applicability of luminance based lighting evaluation index. By measuring the illumination and
brightness data of typical sky, the SM test system is used to read the brightness value in the field of vision,
calculate the effective brightness and effective brightness ratio within a day, and evaluate the indoor lighting.
The experimental results show that the distribution of indoor daylighting coefficient is stable on a cloudy day,
and the daylighting coefficient of each measurement point fluctuates little with time. The greater the daylighting
coefficient of the measuring point near the window is, the greater the daylighting coefficient on the side near the
window is than the minimum daylighting coefficient of 2% in the office. The daylighting coefficient on the side
near the window is the highest with a distribution of 8%, while the daylighting coefficient on the side near the
wall is lower than 2%. The daylighting coefficient on the side near the wall is the smallest with a distribution of
0.5%. From the above analysis, it can be seen that the indoor lighting coefficient decreases with the increase of
room depth under the condition of full cloudy day. The side near the window can provide sufficient natural light
for work, while the side near the inner wall cannot meet the illumination requirements during normal work