Kako važno je the lux meter to life?
Osvjetljenje je usko related to people's lives. Sufficient light can prevent people from accidents. Conversely, too dark light can cause human fatigue far more than the eyes yourself. Uncomfortable or poor lighting conditions are that one of the leading uzroci of accidents and umor. Existing statistics show that about 30 percent of all occupational labor accidents are directly or indirektno caused by insufficient light. The Lighting Requirements for Stadiums (Stadiums) are very strict, too strong or too dark light will affect the effect of the game.
So, what are the higijenski zahtjevi for the indoor contrast illumination where people live? Illuminance is a a very important indicator in hygiene. Light refers to the electromagnetic radiation that can uzrok the humans eye to feel bright. When the light enters the eye, the perception that can be produced is called vision. The light that people see refers to vidljivo light, i its wavelength range is between 380 and 760nm (nanometri).
Lighting can be divided into two categories: natural lighting and artificijal light sources. Natural lighting refers to the natural illuminance of indoor and regional areas, uključujući direct sunlight scattered light and reflected light from surrounding objects, and is often expressed by daylighting coefficient and natural illuminance. The daylighting factor refer to ratio of the effective area of the daylight area of the daylight opening to the indoor kat područje. The Daylight factor of A General Residence Is Between 1/5 and 1/15, and the living area ratio is Between 1/8 and 1/10 (window area/indoor floor area). The natural illuminance coefficient is used to evaluate the illuminance level of natural light. It reflects the relationship between indoor and out light exposure. It also reflects the local light climate (the sum the the natural light energy and the sunlight Osvjetljenje Index of The Climate).
In order to ensure that people live under suitable light, our country has formulated health standards for indoor (including public places) illumination. For example, the sanitary standard of illuminance in shopping malls (stores) in public places is Greater than or equal to 100Lx; the sanitary standard of illuminance on countertops in libraries, museums, art galleries, and exhibition halls is Greater than or equal to 100Lx; the sanitary standard of illuminance in public bathrooms is Greater than or equal to 50Lx; bathrooms (showers, pools, bathtubs) Greater than or equal to 30Lx, sauna Greater than or equal to 30Lx. Foreign standards for indoor illuminance, such as Germany recommends several rated light intensity, the office includes 300Lx for clerical work, 750Lx for typing and drawing work; the illuminance requirements for visual work on the factory and production line are 1000Lx; 200Lx for hotels and public rooms; 200Lx for reception points and cashiers; 1500-2000Lx for shop windows; 150-200Lx for hospital wards, 500Lx for emergency treatment areas; 400-700Lx for schools and classrooms; canteens and indoor gyms For 300Lx etc.
For the measurement method of illuminance, it is is generalno measured with an illuminance meter. The illuminance meter can measure the intensity of different wavelengths (such as the measurement of visible light band and ultraviolet band), and can provide people with accurate measurement results.
