BS 4995:1973
Recommendations for measurement of the veiling glare index of lenses and optical systems

Standard No.

BS 4995:1973

Release Date

1973

Published By

British Standards Institution (BSI)

Status

Be replaced

Replace By

BS 4995:1973(2011)

Latest

BS 4995:1973(2011)

Scope

Laboratory techniques for measuring VGI are described in general terms and recommendations are made regarding the performance of the main subunits of the equipment. Standard methods of specifying conditions of test and of expressing the results. Gives guidelines for the operation of VGI measuring equipment to facilitate the obtaining of accurate results.

BS 4995:1973 history

• 0000 BS 4995:1973(2011)
• 1973 BS 4995:1973 Recommendations for measurement of the veiling glare index of lenses and optical systems