Lighting Innovation (United States)

In this presentation, we present a novel programmable multimodal microscopy system integrating spatial light modulator (SLM) and programmable optics, enabling real-time imaging across brightfield (BF), darkfield (DF), phase-contrast (PC), differential interference contrast (DIC), and quantitative phase imaging (QPI) without mechanical switching. Precise phase modulation (0~2 π, resolution 0.1 π) allows adaptive optimization of image quality and extraction of quantitative cellular metrics. Leveraging multimodal imaging data, we developed an auto-labeling framework that utilizes morphological and structural information derived from optically fused DF, DIC, and PC images to significantly enhance auto-labeling accuracy and consistency. Additionally, simultaneous acquisition of QPI alongside other phase-sensitive modes (DIC and PC) provides enriched information, greatly improving the detailed monitoring and evaluation of cell cultures. Our results demonstrate the system's capability to enhance precision, automation, and reproducibility in imaging workflows, offering promising applications in advanced cell therapy research, from precise culture monitoring to robust quality assessment.

ReferaatDe glastuinbouw in Nederland is een belangrijke economische sector die jaarrond verse groenten, bloemen en fruit produceert.Om dit te realiseren wordt tijdens de wintermaanden het schaarse zonlicht aangevuld met assimilatiebelichting.Om tegen 2040 klimaatneutraal en economisch rendabel

The present article describes a perspective on tactical urban lighting and its power as a source for disruption and innovation in the field of urban lighting. It is the result of an applied research that is currently being carried out by a task group formed by technicians, planners, managers and designers from different private companies and public institutions with responsibility and expertise in public lighting and urban planning. The group objective is to explore innovative methods and state of the art technology implementations as a practical application of the evidence-based knowledge in the field of artificial lighting for the sake of health and well-being. The definition of health is extended, as the concept of well-being includes the urban space as an ecosystem. There is also a fundamental source of awareness that comes from social sciences about how the built environment design promotes well-being, or else constitutes a hazard for health. After a definition phase for the methodologies and the technology that would need to be developed, the task group is focused on developing new products and planning a prototype installation on a real playground. A tactical, lightweight intervention in an urban green area in the Metropolitan Region of Barcelona is designed to implement, test, and communicate these innovative methods. Once the experiment is validated, a collaboration with public authorities will allow to introduce innovative perspectives in street lighting. Having received support from local’s regional government innovation programmes, through a competitiveness strengthening initiative, the project is partly funded by the European Commission.

Today, adaptive lighting, which is lighting controlled by occupancy sensors or schedules that adjust light levels based on actual site conditions, is considered best practice for numerous outdoor applications. Adaptive lighting has been adopted as part of some commercial energy standards and the strategy is now included in many outdoor lighting specifications and design guides. Outdoor areas with heightened security requirements, however, are often excluded from adaptive lighting control requirements and these areas remain lit with high, uniform levels of static illumination.

This study investigated the adaptations of traditional dwellings to the complex regional microclimate in southern Zhejiang, China. Typical traditional dwellings in a village in the foothills and a village on the mid-slopes of Zhejiang’s alpine region were selected to study traditional construction strategies for climate responsiveness and the comfort level of indoor environments during the very humid plum rain season in early summer. Fundamental analysis of the climate and architecture, a response analysis of the dwelling form, an occupants’ comfort satisfaction survey, and field measurements of indoor and outdoor thermal environmental parameters were performed. The traditional dwellings and their design strategies for various regional environmental factors were explored from the perspective of (1) regional climate-adaptive strategies, (2) the thermal, airflow, lighting, and acoustic qualities of the indoor environment, and (3) the occupants’ indoor environment satisfaction. The results indicated that traditional dwellings in southern Zhejiang incorporate strategies of various effectiveness in ensuring indoor comfort.

Light is a condition that human beings are subjected to in nature. Light is not only a physical parameter but also an important factor, which is affecting the mental and cognitive performance of the person. For this reason, in recent years, many researchers and scientists have been working on and exploring this direction of light. The spectral structure of light in the natural environment shows a continuous change. We can define this natural environment as the spectral transformation of daylight in open air. Thus, people who remain in closed environments during the day are living under unfavourable conditions, such as constant colour temperatures and luminous flux of illumination. The studies aimed at reducing this harmful effect the most. These studies are based on the principle that all intermediate colours are obtained by blending the light in 2 different colours (usually one is very warm white and the other is very cold white) and that the intermediate colours are timed within a certain scenario and illuminated indoors to simulate the outside environment. In this study, the mixture of light sources in different colours was mathematically modelled in computer environment and the CCT in K of the mixture was calculated. It is also optimized to obtain the mixture colour with least mistakes of the mixture functions by comparing with the actual measurement results.

The first issue of Lighting Research and Technology was published in 1969. This is the first issue of the 50th volume. This paper summarises the origins and development of the journal as well as describing how both the nature and sources of papers have changed over the years. The challenges facing the journal are described and the objectives for the future are specified.

As daylight modeling and simulation abilities have progressed, a number of new annual daylighting metrics have been proposed to characterize the quality of daylight in a space. A critique of many of these metrics, however, involves how they model human and sensor controlled window shades and blinds. In particular, the majority of metrics model manual shade control in an ideal, unrealistic, manner- i.e., closed precisely when necessary. This paper explores a more realistic and granular algorithm that has recently been implemented within Sensor Placement Optimization Tool (SPOT Pro™) software. This algorithm allows for adjustments in sensitivity as well as delay when simulating manual shade control, thereby allowing modeling for a wider range of representative occupant behaviors. Preliminary analysis using the new, more elastic algorithm suggests that occupant delays in opening of shade controls can result in significant (50-100%) reductions in daylight availability. The contribution of the research is an initial exploration of the new algorithm to support more accurate modeling of shade control in the future.