Tag Archives: lighting dilemmas

A Glaring Mistake

squint

It’s that age old problem that bites us when we least expect (and cruelly) during the final installation phase of a project. For all of us who specify and design lighting – glare is a real problem – the need to provide sufficient light onto an object with the minimal amount of discomfort to the user’s eyes.Arguably the best lighting is where the cast of light is seen and not the source. However, unless completely shielded – light will inevitably be bright at source and likely to shine glare into the eye. Spotlighting is an application where designers have to be particularly careful.

Top tips to minimise glare if a fixture isn’t concealed:

472a

1. Ensure the beam angle of the fitting isn’t unnecessarily wide – This avoids
extraneous light hitting the eye and directs light only to where it is required.

2. Choose a lamp or source (typically an LED) that is recessed into the fitting. How? Use a baffled fixture – which has a short tube/cylinder construction (typically black) – by sinking the source deeper into the fitting the spill of light is minimised

3. Add a snoot – Odd word for another tube added onto the front of a spotlight. This deepens the source thus hiding it further – reducing the angle of light that may trouble users vision.

evoaccessoryholders

4. Add a honeycomb louvre – Some fixtures provide the option for this – simply hiding the source from the eye at a wider viewing angle.

5. Be aware of unprotected LED chips behind lenses – The current trend
toward the miniaturisation of fixtures utilising LED’s small proportions brings with it a potential downside. Maximum output is achieved if the bare LED is behind a lens but it’s very harsh to the eye and must be used with care.

Lastly – if in doubt – dim the fitting but that is only supplementary and not a fundamental fix.

When you specify and purchase lights from us – this advice is all part of the extra value service we offer all our clients. So if you wish to light your next project with total confidence – call us and we will be happy to help!

5 Tips on How to Calculate Lighting Beam Widths

Now – is this solely the territory for the lighting geek OR is this really relevant to you?

It’s actually a key principle to understand to help your lighting designs go from good … to great.

In this short video Andrew gives you 5 practical tips to aid you in this process.

1. Choose what you are lighting – is it simply the floor or a piece of furniture or maybe an architectural element?

2. Light spreads increasingly wider the further it leaves it’s source – so how wide would you ideally want the spread of light to go by the time it hits the lit surface?

3. Calculate the distance – between light source and that surface.

4. Now draw to scale – this distance with the source at one side and the rough desired spread on the other.

Draw a line from the source to the edges of the desired lit width – the angle between these two lines is our chosen beam width.

5. Now select a lamp or fixture – with a beam width as close as possible to that value.

Remember too that light is also used and chosen to highlight objects all along it’s pathway

For example – if you use a floor light to uplight a column – you’ll want to keep the beam width tight and follow the line of the architecture from the moment it leaves the source carefully considering how wide it will spread along it’s path.

Another great benefit to purposefully choosing your angles of light also helps combat the glare that light can bring to the eye.

So let’s start taking control and next time you choose your lighting – not only think of us here at Orange Lighting – but consider those beam widths.

Walkover LED in situ