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Lighting Design. The Law Of Attraction.
Lighting design is partly a mathematical process and partly a series of assumptions based on the needs of the user. Taking a priceless piece of ART for example and transforming it so the client sees it in a different way, is a result of a tremendous amount of work and research, where the lighting scenario will allow the artwork to take center stage.
COLOR RENDERING INDEX.
Choosing lights for your project can be quite technical. Whether you are building an apartment, a new home, a restaurant, a hotel, any kind of commercial business, or an art gallery, it is important to understand the different aspects there are to lights such as the Color Rendering Index, and why it’s so important to achieving your goal in your project.
With the advances in LED technology, there are many LED light sources on the market that could potentially light Your project. But, before splashing out your cash, you need to find out not only that the LED you have in mind is bright enough and has an appropriate optical performance but, more importantly, the color performance of the LED
What is color temperature CCT ( Correlated Color Temperature ) and does it have a high CRI rating of Ra 90+ (color rendering index)?
If the LED on offer has a CRI of between 85 and 90 it can be described as having ‘good color rendering’.90 and above is ‘excellent color rendering’ and that is where you need to be to get your artwork to look at its best 100 is the PERFECT scenario.
For some lighting design can be an afterthought or just simply misunderstood. If you are opening a restaurant, for example, you might want dim lighting which might work great for your space but it might also create a different environment from what you intended. Or, if you are an artist and are hanging your work in a gallery, the lighting will affect the way your painting is seen by customers and visitors. These risks can easily be solved by understanding CRI-here are some key things to know. CRI essentially refers to how different types of illumination, or light, affect the color of objects as they are perceived when the light hits them. The index allows lighting manufacturers to create different lights with CRIs that are best for different situations, i.e. a restaurant and an art gallery. To do this, they manufacture lights on a scale of 1100:
High-pressure sodium light sources have a CRI of 24 Mercury vapor light sources have a CRI of around 49 Fluorescent light sources have a CRI range between 50 and 85 depending on the phosphate coating of the bulb Metal halide light sources have a CRI range between 75 and 95
Poor quality LEDs the majority of what the market is using have a CRI range between 55-75
High-quality LEDs have a broad range of CRI up to 95 What do those CRI measurements mean? Simply put, the lower the CRI, the less accurate the true colors will be depicted. Therefore, if you are shining a light on a table where your food will be placed, you’d want a higher level CRI. The same goes for a piece of art, a mosaic installation, or a Corian sculpture if the light shining on your object or photo has a low CRI, the colors that you used or captured are not going to appear as you intended. The closer the CRI rating is to 100, the more the colors will appear as they would in perfect natural, true lighting.