In recent years, the role of video games in enhancing brain plasticity and learning ability has been verified, and this learning transfer is known as the “learning to learn” effect of video game training. At the same time, against the background of healthy lighting, the influence of non-visual effects of light environment on the human rhythmic system has been gradually confirmed. As a special operation form of Visual Display Terminal (VDT) operation, video game training has a high dependence on VDT equipment and the VDT screen, and the background usually has a huge difference in brightness. Compared with the light environment of ordinary operation space, the light environment of VDT operation space is more complex. This complex light environment's non-visual effects cause human emotions, alertness, fatigue, cognitive ability, and other changes, which may affect the efficiency of the “learning to learn” effect of video game training. This article focuses on the impact of the light environment in the VDT workspace on the “learning to learn” effect of video game training. It first traces the factors that trigger the “learning to learn” effect of video game training, that is, the improvement of people's attention, perception, and cognitive ability. Then, the influencing mechanism and the evaluation method of the VDT workspace space light environment on the human rhythm system are discussed based on the basic theory of photobiological effect. In addition, the VDT display lighting light time pattern, photophysical properties, regulation, and protection mechanism on the human rhythm system are studied to demonstrate the VDT workspace light environment's special characteristics. Finally, combined with the progress of artificial lighting technology and the research results of health lighting, given the “learning to learn” effect of video game training, some thoughts on the design of the light environment of the workplace and future research directions are presented.
How to balance the artistry and comfort of the light environment in an architecturalized immersive new media public art installation (AINMPAI) to ensure the safety of the audiences’ visual safety has become a new issue. The lack of corresponding lighting design standards makes this issue more challenging. This paper explores the appropriate luminance range of the irregularly curved LED screens of the AINMPAI with high-luminance natural light as the background. The influence of the audience behavior mode on the brightness threshold of the LED screens in the AINMPAI under the background of Internet communication is discussed. Through software simulation and field measurement, the effectiveness of the design measures based on the local characteristics of the work is verified. The overall average luminance, the regional luminance, the partial luminance, and the corresponding luminance contrast of the inner screen surface were measured at every 10° change in the solar altitude angle during daytime. The nighttime light environment parameters and the temperature of the device throughout the day were also measured. A total of 487 visitors were interviewed for subjective evaluation of the comfort of the light and thermal environments. The results show that: (1) the overall average luminance cannot wholly describe the actual luminance of the critical parts of the special-shaped curved screen in the device and that two indicators, the regional luminance and the partial average luminance, need to be added; (2) the maximum brightness limit of LED screens in the daytime can be 1000 cd/m2 but at night it should be controlled within 200 cd/m2; (3) natural light is the main factor that causes the high average brightness and low contrast of the daytime device screen; (4) the recommended indicators for such artistic installations should balance the absolute values of average brightness, artistic effect, and transmission priority. This study can provide foundational data and a methodological reference for establishing AINMPAI light environment design guidelines or recommended standards based on audiences’ visual safety.
Underexposure to daylight in windowless factories puts assembly-line workers at risk of health problems. To investigate whether the advance light exposure in the early morning and during the lunch break benefits workers’ productivity and night-time sleep, a within-subject experiment was conducted in a factory. Four experimental lighting interventions were provided twice a day before work (8:30–9:00 and 12:00–12:30) for consecutive five workdays, covering two light levels (1440 lx vs. 70 lx), each with two correlated colour temperatures (CCTs) (5300 K vs. 3300 K), plus an additional benchmark dark exposure (4 lx). Participants’ subjective alertness and night-time sleep were measured daily, and the chronotype was monitored once a week. Results showed that a higher illuminance was correlated with increased subjective work alertness and higher sleep efficiency, while a lower CCT slightly improved alertness. The subjective work alertness and sleep efficiency under the two advance bright light exposures were higher than those under the dark exposure, and the responses of subjective alertness were more pronounced in the afternoon than those in the morning. Yet, the chronotype had no evident change in different lighting interventions. The present study indicated that the daily advance light exposure before work could have a delayed effect on participants’ alertness and sleep quality.
介绍了一个由艺术家与建筑师、多学科技术专家跨界合作的大型沉浸式影像交互艺术装置的创作过程.装置的设计基于在地性原则,借助计算机的数据计算和分析能力,通过装置外表皮开孔率和各部位孔径占空比的合理设计,实现了良好的散热管理和天然光调控以及对环境的自适应管理,创造出更为舒适的沉浸式艺术体验;创作者试图使艺术与城市公共空间、建筑科技产生新的关联,以拓展照明科技的维度和艺术的视野,激发艺术家个人实验性的创造力,创造沉浸式、互动性、共享性的艺术体验;是以艺术介入城市发展,将公共艺术作为提升城市公共空间活力和触发城市"微更新"的引擎,来解决复杂城市问题的一次探索.
This paper aims to disclose the daylight features in sun-deficient areas of China. For this purpose, the authors carried out field measurement with annual dynamic analysis on daylight in a university of Chongqing, a typical sun-deficient area. The annual daylight quality was evaluated in details from the angles of temporal and spatial variations. Specifically, the annual daylight data were condensed into 72 similar time periods according to the local academic calendar. The mean illuminance and spatial ratio of areas meeting the illuminance threshold were calculated in each period for two typical classrooms in the university. The results show that, in the south-facing classroom, the mean daylight illuminance on the desktop was below the threshold in winter and in early mornings (before 10:00) and late afternoons (after 16:00) of other seasons; in the north-facing classroom, the mean daylight illuminance on the desktop were below the threshold in virtually all 72 periods. In terms of space, less than 25% of the north-facing classroom and 55% in the south-facing classroom met the illuminance threshold. Compared with the traditional daylight evaluation methods, our strategy realizes a comprehensive and detailed evaluation of indoor daylight quality, shedding new light on reasonable lighting improvement.
光与情绪波动存在一定相关性,重视教室健康光环境的研究,对促进学生情绪调节具有重要意义.本文回顾了国内外关于教室光环境的研究成果,分析了光照影响学生心理与情绪的理论基础,并结合情景照明研究动向,总结了教室光环境对学生情绪影响的研究进展.光照与情绪相关性的研究成果将为未来的教室采光与照明研究提供宝贵建议,力求通过深入研究创造更有益于改善学生情绪的健康光环境.
In China, existing buildings comprise more than 40 billion square meters, most being of high energy consumption. A substantial reduction in electrical energy costs could be obtained through greater use of daylight. Daylight varies widely due to the movement of sun, changing seasons and diverse weather conditions. Custom static daylight assessments, simulations represent only one time of the year or one time of the day, are inadequate to evaluate the dynamics of daylight variability. Using the intuitive graphic tool Temporal Map to display the annual daylight data, this study compared different passive architectural design strategies under the climate conditions of five representative Chinese cities and selected the most suitable design scheme for each city. In this study, the dynamic yearly-graphic tool was utilized for architectural design in China, and we integrated the optimal design with the Chinese academic calendar to achieve improvements within the occupancy time. This modified map connects design work with human activity that makes daylight evaluation more accurate and efficient. The results of this study will provide preliminary recommendations for energy-saving design in China, and reference to other similar studies.