Il tennis da tavolo è uno sport con la palla popolare nel mondo ed è anche il pallone nazionale della Repubblica Popolare Cinese. Il ping pong è un progetto di abilità, principalmente tecnico e integrato dalla forma fisica. Ha avuto origine nel Regno Unito. Il nome “ping pong” è nato nel 1900 ed è stato chiamato per il suono di “ping pang” quando lo si colpisce.… Read More
On the spectrogram, we can see that the spectrum of the incandescent lamp is more to the right, and the continuity is stronger. Regardless of whether the LED spectrum is cold white or warm white, it is much more continuous than the fluorescent light spectrum, and the frequency band is also wider.
On the other hand, LED light sources are more biased towards the blue area, while incandescent lamps are more biased towards the red area.… Read More
Um die nationalen Gesetze, Vorschriften und technischen und wirtschaftlichen Richtlinien bei der Beleuchtungsplanung von Außenarbeitsplätzen umzusetzen, um die Funktionen von Außenarbeitsplätzen zu erfüllen, ist es förderlich für visuelles Arbeiten, Sehkomfort und eine verbesserte Arbeitseffizienz.
Komfortable Wartung und Verwaltung, grüne Beleuchtung implementieren und diesen Standard formulieren. Baustellen, insbesondere Tunnel und unterirdische Projekte, stellen hohe Anforderungen an die Beleuchtung, nicht nur für höhere Helligkeit und Zuverlässigkeit, sondern auch für eine unterbrechungsfreie Beleuchtung.… Read More
Some people often ask some questions, and these questions are generally related to some lighting calculations. One asked is that a billboard wants to be changed to LED lights, 1.5 meters wide and 3 meters long, how many light tubes are reasonable? Another asked, how many LED tubes should be installed in a new house with 1320 sq ft?… Read More
Avec le développement rapide de la société et de l’économie modernes, la consommation de charbon, de pétrole, de gaz naturel et d’autres énergies augmente, et la pénurie d’énergie est progressivement devenue un sérieux défi pour le monde. L’énergie est l’une des ressources naturelles les plus fondamentales et la base matérielle de l’existence et du développement de la société humaine.… Read More
The following are several factors that outdoor lighting designers must consider when designing outdoor LED lamps——
Outdoor lighting designers must consider the working environment of outdoor LED lamps
LED outdoor lighting fixtures are affected by natural conditions such as temperature, ultraviolet rays, humidity, rain, sand, and chemical gases due to their complex working environment. Over time, it will cause serious problems with LED light decay.… Read More
Swimmingpool refererer til kunstigt konstruerede pools, hvor folk kan udføre forskellige svømninger eller aktiviteter i vandet, samt forskellige former for pools, hvor folk kan underholde, slappe af og fitness på eller i vandet. Det er en konkurrencepool, en kommerciel pool, en offentlig pool og en dedikeret pool Generelt navn på private swimmingpools og rekreative pools.
Der var ingen svømmehændelser i de gamle OL, men svømmesporten-som er direkte kontrolleret af mennesker.… Read More
Scene lighting is usually divided into three types: natural light, artificial light and a combination of the two.
The representative natural light is sunlight. When using natural light, there are several other issues to consider: what time of day it is now. Is the sky clear or overcast? Also, how much light is reflected to the surroundings in the environment?… Read More
kohdevalaisimet ovat lamppuja, jotka on suunniteltu valaisemaan valaistua pintaa ympäröivää ympäristöä korkeammalle. Kutsutaan myös kohdevaloksi. Yleensä se voi suunnata mihin tahansa suuntaan ja sillä on rakenne, johon ilmasto -olosuhteet eivät vaikuta. Käytetään pääasiassa suurten alueiden toiminta-aloilla, rakennusten ääriviivoissa, stadioneissa, ylikulkusiltailla, muistomerkeissä, puistoissa ja kukkapenkeissä. Siksi lähes kaikkia ulkona käytettäviä suuren alueen valaisimia voidaan pitää kohdevaloina. Kohdevalon lähtevän säteen kulma on laaja ja kapea, ja vaihtelualue on 0 ° – 180 °.… Read More
Illumination has a close relationship with people’s lives. Adequate light can prevent people from accidents. Conversely, too dark light can cause fatigue to the human body far more than the eyes themselves.
Therefore, uncomfortable or poor lighting conditions are one of the main causes of accidents and fatigue. Existing statistics show that about 30% of all occupational labor accidents are directly or indirectly caused by insufficient light.… Read More