Lens5-22.xls is a Microsoft Excel Workbook that
can be used with the Intuitive Colorimeter Mark 1 Mark 2 or Mark 3.
It provides the following information about a stack of trial lenses:
·
The
spectral transmission
·
The
darkness of a tint in relation to its saturation: the appropriate use of the
attenuators
·
The
advisability of a UV -blocker
·
The
effect of the tint on traffic signals
·
An
estimate of influence of light sources on the effectiveness of the tint
·
Suggestions
for changes to the tint if it is to be worn exclusively in daylight or in
incandescent light
·
A
comparison with other prescriptions
·
The
chromaticity coordinates under various light sources
The
www1.essex also provides the stack of trial lenses that matches any Colorimeter
setting. This feature can be used only with the Intuitive Colorimeter Mark 2
and Mark 3.
Variations
between Mark 2 and Mark 3
colorimeters are small, but they can be accommodated, if necessary, by
following a simple calibration procedure available on one of the component
spreadsheets of the workbook.
Download Lens5-22.xls. The file is 4.5MB in size.
If
you download the file, please email Arnold Wilkins (arnold@essex.ac.uk) with ‘register’ in the
subject header, and a message giving your name, and you will be informed of
future upgrades.
Lens.xls – first version, released
Lens2-1.xls – interim version, released
Lens2-3.xls - trial version, released
Lens2-4.xls - trial version, released
Lens2-5.xls - trial version, released
Lens2-6.xls - trial version, released
Lens2-7.xls - trial version, released
Lens2-8.xls - released
Lens2-9.xls - released
Lens3-2.xls - released
Lens3-3.xls - released
Lens3-4.xls - released
Lens4-1.xls – released
Lens4-2.xls – released August 2011. Digital presentation of transmission data.
Lens3.x
and later improve the data entry, combining entry of hue and saturation or
trial lens combinations.
If
you have suggestions for further www1.essex development, please email Arnold Wilkins.