Greetings Card : Light testing
Cards from Science Photo Library
Light testing
Light testing. Long-exposure photograph showing a gonio-photometer (goniometer for short) at the Osram Sylvania Light Research Laboratory, USA. This testing device obtains measurements of light luminance over several wavelengths. The light bulb is placed at the centre of tha goniometer and its light is reflected onto a mirror located at the end of a rotating arm. Light from the mirror is in turn directed onto a sensor. The rotating arm is necessary to record light output over a large range of angles. The goniometer enables researchers to test new energy efficient long- life light bulbs
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6439043
© VOLKER STEGER/SCIENCE PHOTO LIBRARY
2005 Analysing Detecting Domestic Efficiency Energy Efficient House Hold Lamp Light Light Research Long Exposure Machine Measuring North American Operating Osram Sylvania Rotating Testing Us A Goniometer Laboratory Luminance Physical
Greetings Card (7"x5")
Folded Greeting Cards (12.5x17.5 cm) have a laminate finish and are supplied with an envelope. The front and inside can be personalised with text in a selection of fonts, layouts and colours.
Greetings Cards suitable for Birthdays, Weddings, Anniversaries, Graduations, Thank You and much more
Estimated Product Size is 17.5cm x 12.5cm (6.9" x 4.9")
These are individually made so all sizes are approximate
Artwork printed orientated as per the preview above, with landscape (horizontal) or portrait (vertical) orientation to match the source image.
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