FUJIFILM UVSCALE: Visual verification of ultraviolet light amount distribution

by donpedro

Ultraviolet light measurement film enables anyone to measure ultraviolet light amount distribution easily by just cutting to size and inserting as required. This Fujifilm technology finds wide range of applications and measurement techniques.

UV light distribution analysis system
Management by converting colors into numeric values with analysis systems.
In this system, exclusive analysis software is used along with a special scanner. The system makes it possible to scan the color of UVSCALE, convert it into UV light values, analyze UV light distribution, and save them.
The separation accuracy of the densities can be improved so sections that cannot be judged visually can be analyzed. Managing numerical data can have the following advantages:Internal inspection standards can be set. Analysis results can be shared. Digitizing data makes it possible to compare it to past data.

Structure and principle
One side of the base film has a UV light sensitive layer and the opposite side has a white layer. The light sensitive layer changes color according to the amount of UV light it receives, so the amount of light distributed on the exposed surface can be easily seen by observing the light sensitive layer and white layer when they are attached to the base.
The color-forming material in the microcapsules reacts with the UV light and changes color.

Standard color chart
The figure on the right represents color characteristics generated by a high-pressure mercury lamp. However, please note that these color characteristics are values generated by using Fujifilm light sources and devices, so there may be differences in color density for a given amount of light due to differences and variations in individual lamps or the environment.

Advantages of visual checks
Referring to standard color charts makes it possible to visually judge accumulated light values in an easy way.
Providing color samples can significantly reduce the time necessary for checking the amount of UV light when starting work and switching objects to be exposed.

Correction function

Measurement function

How to use UVSCALE
1. After cutting UVSCALE to the required shape (length), place it on the location that you want to measure.
2. Operate the equipment or device, and expose UVSCALE to UV light.*The side of the UVSCALE with the matte surface should be exposed.
3. UVSCALE changes color in accordance with the amount of UV light.
4. Remove the UVSCALE, and determine the distribution of UV light by observing the color distribution.*Use the matte side for observing.
5. Set UVSCALE on the special scanner and scan the color sample.
6. Analyze it on a PC with the exclusive software installed.

Entering a correction value can correct differences in light amount values caused by differences in illuminometers, temperature, and other measurement conditions to obtain an appropriate value. Furthermore, the obtained data can be converted into numerical values, and the measurement data of the entire area or specified parts can be displayed in rectangular or circular form.


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