Headline - Museums Association

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Transcript Headline - Museums Association

SCHOTT Lighting Forum

QUESTION:

What is the best combination of lighting for the museum and heritage world?

John Wheatley: SCHOTT Architecture and Design

© SCHOTT AG LED Driven Glass Fibre Optic Lighting – for the sustainable age

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Lighting Systems:

Fluorescent

Low Voltage Tungsten Halogen

Fibre Optic with conventional light source

Fibre Optic with LED Light Source

Direct LED

What is the best combination of lighting for the museum and heritage world?

John Wheatley: SCHOTT Architecture and Design © SCHOTT AG

SCHOTT LightIng Forum

Glass Fibre Optic – the basics:

The properties/advantages of FO include:

© SCHOTT AG

Absence of infrared – protects objects from heat damage.

Absence of ultraviolet – protects objects from premature degradation.

High colour rendering – seeing the colours in the object as it really is: Colour appearance – warm or cool white Low energy use - especially LED light source Light source remote from objects – security and heat

What is the best combination of lighting for the museum and heritage world?

John Wheatley: SCHOTT Architecture and Design

SCHOTT LightIng Forum

LED Light Source for Fibre Optic:

• No re-lamping required • Low power consumption • Excellent colour rendering • Highest protection of objects • Choice of colour temperature • Dimming • Easy integration “Retrofit”

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- long lifetime & low cost of ownership - up to 40% energy saving than conventional light sources - high CRI < 90 - ultra low UV especially with a glass fibre harness - 3000K and 4400K - on board or 0-10V remote - compatible with any 30mm common end

What is the best combination of lighting for the museum and heritage world?

John Wheatley: SCHOTT Architecture and Design

SCHOTT LightIng Forum

Glass Fibre Optic – Common End Randomising:

Example 1 0.8

0.6

0.4

0.2

0 Non-randomized Randomized Harness with 8 tails

What is the best combination of lighting for the museum and heritage world?

John Wheatley: SCHOTT Architecture and Design © SCHOTT AG

Non-Randomised Randomised

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Glass Fibre Optic – Hot Fusion (Fused):

• No resin • Longer life cycle and higher light output • Fiber heated and compressed • Reduction of packed diameter • No interstitial gaps • Fully transparent interface Traditional Common End [ Epoxy Resin Based ]

What is the best combination of lighting for the museum and heritage world?

John Wheatley: SCHOTT Architecture and Design © SCHOTT AG

New Hot Fused Common End [ Hot Fused ]

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Glass Fibre Optic – example end fittings:

What is the best combination of lighting for the museum and heritage world?

John Wheatley: SCHOTT Architecture and Design © SCHOTT AG

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Direct LED Luminaires

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Direct LED Luminaires:

The properties/advantages of high quality museum bespoke Direct LED: Very low infrared Very low ultraviolet High colour rendering Colour appearance Low power consumption – protects objects from heat damage.

– protects objects from premature degradation.

– seeing the colours in the object as it really is: – warm or cool white – typically 7.5W per metre for linear lightbar

What is the best combination of lighting for the museum and heritage world?

John Wheatley: SCHOTT Architec ture and Design © SCHOTT AG

SCHOTT LightIng Forum

Indirect Fibre Optic

The properties/advantages of high quality museum Indirect Fibre Optic: Absence of infrared – protects objects from heat damage.

Absence of ultraviolet – protects objects from premature degradation.

What is the best combination of lighting for the museum and heritage world?

John Wheatley: SCHOTT Architecture and Design © SCHOTT AG

SCHOTT LightIng Forum

Direct LED Luminaires:

Infrared Ultraviolet Low power consumption Security – low but more than Indirect FO – low but more than Indirect FO.

– heat energy is in the showcase in vicinity of objects – need to open the showcase if any failure

What is the best combination of lighting for the museum and heritage world?

John Wheatley: SCHOTT Architecture and Design © SCHOTT AG

SCHOTT LightIng Forum

When Fibre Optic and when Direct LED?

What is the best combination of lighting for the museum and heritage world?

SCHOTT LightIng Forum

Ashcroft Gallery IWM – Casson Mann and DHA Design

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Summary:

• If the objects being lit are fragile, organic, priceless or otherwise ‘essential’ then indirect FO light is still the best solution. • When combined with an LED Light Source this would provide the best possible fusion of FO and LED technology giving both performance and efficiencies.

• If the objects are not so sensitive then quality direct LED is a solution, again this solution offers performance and energy efficiency. • Then it comes to the design criteria and costs. • Depending on the size of the installation one of the solutions will probably be more economic. • Adherence to quality design criteria is the critical element when choosing a supplier.

John Wheatley: SCHOTT Architecture and Design

SCHOTT LightIng Forum

Summary:

So in considering FO or LED lighting for museum application there isn’t really a definitive answer just a wider choice than in the past.

Indirect FO with conventional light source

Indirect hybrid FO/LED lighting

John Wheatley: SCHOTT Architecture and Design

SCHOTT LightIng Forum What is the best combination of lighting for the museum and heritage world?

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Lecture title, Name of speaker, 10/08/2007

Slide 17 of ?? Slides

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Thank You

John Wheatley Manager for Lighting and Interior Glass Solutions SCHOTT Architecture and Design Email: [email protected]

Mobile: 0044 7775 660 576

What is the best combination of lighting for the museum and heritage world?