The eye can accommodate very large differences in light intensity. It can also detect minute differences in light levels when presented with both at the same time. What it cannot accommodate is large differences presented to it at the same time. It will always try to accommodate the brightest light which means that dimmer objects become invisible. This constant strain of trying to see dimmer objects against a bright background can cause headaches and loss of concentration, These can add up to loss of efficiency. The problem has become particularly acute in today's, high technology work places.

EEC Health & Safety Directive 90/270

This lays down the minimum requirements for work with VDU's. Employers who do not comply with this directive face the same penalties as those who do not comply with other health and safety directives.

 

 

The most obvious difference between todays workplace and that of 10 years ago is the vast increase in the number of computers. Most of these have multiple terminals each with its own visual display unit (VDU). The modern business depends upon computers for many functions such as accounting, credit control, production. stock control, salary calculations and word processing. It is estimated that within a few years, over half the working population will use a computer as part of their day to day routine. It is particularly important, therefore, that computer screens are as easy to use as possible. In fact EEC Health and Safety directive 9O/27O lays down very clear rules on this matter The problem with VDU screens is that the levels of light emitted from the screen are comparatively low. Therefore the contrast available between the information displayed on the screen and the screen background is limited. Couple this with strong glare from windows and the information displayed can be impossible to read.

The requirements of .Annex A of EEC Health and Safety directive 90/270, Section 3 Subsection (C) says 'windows should be fitted with a suitable system of adjustable coverings to attenuate the daylight that falls upon the work station'. Blinds can fulfil this requirement in every way. They can be incorporated in the original design of a building or can be added without structural alteration at a later date. Blinds can be adjusted to suit the ambient conditions. They can even be adjusted to reduce the sun's intensity whilst still retaining outside vision