Posts Tagged ‘cri’

Stop Flirting & Commit : Rules of Engagement With Colour

Wednesday, January 25th, 2012

Source: those3chicks


Stop Flirting & Commit : Rules of Engagement With Colour


Just as with any budding attraction, should you bring it home with you, you might be surprised how it looks like in a different light. Colours which look great on the colour chart under fluorescent lighting in the paint store will look much different at home in a sunny room or lit by incandescent lighting. Tungsten bulbs give a slightly yellow light; halogen gives white light, while some fluorescent bulbs can give flat, cold light. All these lights can all affect how the colour looks. Your best bet is full spectrum lighting, which mimics daylight, to show a colour at its’ best.

Read more.


Comments: In this long(ish) post, the authors advise on ways in to include colour in your home design choices. In terms of making your colour decisions, the best piece of advice they give, is to make sure you’re looking at it under the right light.



Should you care what light your dentist is using?

Monday, November 21st, 2011

It has been said that matching natural teeth with an artificial restoration can be one of the most challenging procedures
in restorative dentistry.


So if you are the individual in the chair, what piece of basic infrastructure will you hope your dentist has installed correctly?



How accurate is your colour perception

Friday, August 19th, 2011

Our ability to perceive colour in the world around us is a combination of our ambient light quality and the state of the cones in our eyes.


These cones in our eyes specialise in perceiving any one of the three different colour groups – red, green or blue. If any group is damaged then we cannot properly perceive that particular colour.



The Colour Rendering Index (CRI)

Monday, February 15th, 2010

We felt it is high time to write a brief blog article about the so-called “colour rendering index“, or CRI as its abbreviation is called. The CRI is often quoted in “Ra” (general color rendering index).


What does Wikipedia have to say about the CRI: “The color rendering index (CRI) (sometimes called color rendition index), is a quantitative measure of the ability of a light source to reproduce the colors of various objects faithfully in comparison with an ideal or natural light source. Light sources with a high CRI are desirable in color-critical applications such as photography and cinematography. It is defined by the International Commission on Illumination as follows: ‘Color rendering: Effect of an illuminant on the color appearance of objects by conscious or subconscious comparison with their color appearance under a reference illuminant’.”


As this sounds a wee bit complicated, we’ve prepared an article which (hopefully) explains a bit mor simple what the CRI is and does. (more…)