Research On Lighting Environment In Exhibition Room Of Museum Based On Visual Comfort

In recent years,as more and more people visit and study in museums,it becomes more and more important to study the lighting environment of exhibition rooms in museums from the subjective feelings of visitors.However,many museum exhibition rooms often neglect the ground lighting and wall lighting outside the exhibits,resulting in poor lighting environment quality and low visual comfort.Therefore,from the perspective of visual comfort,this paper makes an in-depth study on the ground lighting and wall lighting in the museum exhibition room.This paper firstly reviews the research on lighting environment of museums at home and abroad and finds that there is a certain gap in the research on floor lighting and wall lighting in museum exhibition room.Therefore,in order to understand the current lighting environment status and main problems of museum exhibition room,this paper first uses field measurement,questionnaire survey and other methods to investigate 14 artificial lighting showrooms in 10 museums.According to the preliminary statistical results,the overall illumination value of floor lighting and wall lighting in exhibition rooms is generally lower than the national standard,no corresponding lighting fixtures are set,and the visual comfort is poor.SPSS was used to analyze the survey data to obtain two key optical indexes affecting visual comfort:average illumination on the ground and average illumination on the wall.In order to get the influence rule of the average illumination on visual comfort of the floor and the average illumination of the wall under different relevant color temperature scenes,a subjective evaluation experiment was conducted to simulate the lighting environment of the museum exhibition room in the laboratory: 24 groups of lighting conditions were set for the floor lighting experiment,and 31 subjects were selected.In the wall lighting experiment,a total of 15 lighting conditions were set,and32 subjects were selected.Questionnaire survey was used to evaluate each working condition.Through the two groups of experiments,the fitting formula between the average illumination of the ground,the average illumination of the wall and the satisfaction rate of visual comfort under different related color temperature scenes was obtained,as well as the corresponding recommended range and optimal value of the average illumination,and the optimal visual comfort scenes were screened out from them.Finally,in order to apply the experimental results,DIALux software was used to simulate and optimize the museum exhibition rooms with poor lighting environment quality and low visual comfort.Combined with the experimental results,the existing lighting design is adjusted,and the simulation results show that the lighting environment quality of the exhibition room is significantly improved after adjustment.It not only verifies the rationality and feasibility of the optimal scenario,but also provides a feasible reference scheme for the application of the experimental results in practical scenarios.This study through on-the-spot investigation and subjective evaluation experiment method,the key optical indicators,which affect the display indoor visual comfort and the corresponding suggestion and the optimal value of the and using the method of software simulation,prove the feasibility and rationality of the results,and gives the corresponding lighting environment optimization scheme,for the museum exhibition room lighting environment optimization gives the corresponding Suggestions and reference.