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 (email@example.com) 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.
released December 2012. Minor changes in formatting
Lens5-22.xls - released December 2012. Minor changes in formatting
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.