Benefits of Led
Some consumers had made a statement to say that LED lights is dimmer than conventional HPSV (SON) street lantern.
Why this statement can stand? Does it means all the LED manufacturers, inventors, and designers are making the same mistake? Please spend a minute to explore the answer below.
Human’s EYE Perception
Human eyes have developed to detect a small amount of the electromagnetic spectrum; this amount is called the visible light region. This region ranges in wavelengths from about 380nm or 400nm to 700nm or 780nm, which is very small when compared to the entire electromagnetic spectrum. It can also depend on the individual pair of eyes. Light waves are either absorbed or reflected by objects; humans see the mix of reflected colours in the eyes, giving a certain object a specific colour. If light waves did not reflect back, then all colours would be absorbed and we would only see black. If it was opposite, and all colours reflected to our eyes then we would only see white. Every single colour corresponds to a wavelength to which it was assigned to. The longer wavelengths appear on the red side of the range and the shorter wavelengths appear on the blue/violet side of the visible spectrum.
Photopic vision is the vision of the eye under well-lit conditions, normally usual daylight light intensity. It allows colour perception which is mediated by cone cells. Cone cells have a higher visual acuity as well as providing the eye’s colour sensitivity. There are three types of cone cells to sense light for three bands of colour. Out of the six to seven million cone cells in the eye, 64% would be considered ‘red’ cones, 32% would be considered ‘green’ cones and 2% would be ‘blue’ cones. (Blue cones also have the highest sensitivity.
Scotopic vision is the vision of the eye under low light conditions. Cone cells do not function as well as rod cells in low level lighting so scotopic vision happens completely through rod cells, which are most sensitive to wavelengths of light on the electromagnetic spectrum of 498nm, which would be the blue-green bands of colour.
Mesopic vision is the type of visions that takes place in intermediate lighting conditions. It is basically a combination of photopic vision and scotopic vision, so both cone cells and rod cells are being used.
Photopic Vision – More sensitive to red, yellow & green colour during day time.
Scotopic Vision – More sensitive to blue & white colour during night time
Mesopic Vision – Combined above both Vision and become the actual human eye vision during night time with illumination system.
Most of the market LED user still evaluating the brightness by using the old fashion lux meter which design based on photopic vision. These groups of led user will always get the inaccurate or lower reading as compare to human eye perception. Our human eye is far better “lux meter” than any conventional lux gadget.
Due to the study above, ONIRII using the latest scientific solution which we own a lux meter that contains both Photopic & Scotopic Vision detectors. The capturing results by this lux meter are showing the nearest results to our human eye perception.
Why should our clients concern this?
By having the proper lighting solution, our esteem clients could avoid spending extra money into their projects yet still having energy saving elements inside of it. ONIRII LED Lighting solution is definitely qualified to replace the conventional lighting design by not compromising the results.
Advantages of LED
- Next Generation Of Energy Saving Light
- Long Life Span 50,000 Hours
- High Colour Rendering Index (CRI/Ra) 80
- Wide range Colour Temperature Choice from 3000K - 5500K
- High Lumen Maintenance up to 70%
- System efficiency , 95Lm/W
- LM 80 International Standard Compliance
- No Mercury & LEAD content for easy disposal.