UVSCALE

Visualizes UV light amount distribution by color density

Features

Structure and how it works

Structure

One side of the base film has a UV light sensitive layer, with the opposite side having a white-colored 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 is easily seen by observing a light sensitive layer and white-colored layer are attached to the base. Since the color density of the white-colored layer corresponds to the amount of UV light received, the light amount distribution on the light receiving surface can easily be investigated.

Principle

The color forming material in the microcapsules reacts to the UV light and changes color.

[Image] Principle

How to use

[Image] After cutting UVSCALE to the required shape (length), place it on the location that you want to measure.

After cutting UVSCALE to the required shape (length), place it on the location that you want to measure.

[Image] Operat e the equipment or device, and expose UVSCALE to UV light. * The side of UVSCALE with matt surface should be exposed.

Operate the equipment or device, and expose UVSCALE to UV light.
* The side of UVSCALE with matt surface should be exposed.

[Image] The UVSCALE changes color in accordance with the amount of
light.

The UVSCALE changes color in accordance with the amount of light.

[Image] Remove UVSCALE, and determine the distribution of light by observing the color distribution. * Use the matte side for observing.

Remove UVSCALE, and determine the distribution of light by observing the color distribution.
* Use the matte side for observing.

Reducing light film

In order to cover a range of accumulated light amount, we offer the product in three types.

[Image] (1) Mono sheet type(L)
[Image] (2) Two sheet type (M/H)
Standard color chart

[High pressure mercury lamp]
The following are color characteristics generated by a high-pressure mercury lamp. However, please note that these color characteristics are values generated by using FUJIFILM light source and devices, so there may be differences in color density for a given amount of light due to difference and variations in individual lamps or environment.

[Image] Standard color chart
  • * Each density is the value measured by FUJIFILM. It is not a warranty of density level.
  • ** The amounts of UV-light are values using a 365nm UV illuminometer.
  • *** The solid lines on the graph show the recommended measurement range. The broken lines represent values that are not as precise as the solid lines and should be used as a reference only.
  • *4 Standard Color Samples show the density range for visual evaluation.

Example applications

[Image] Example applications

Examples of measurement

UV painting

[Image] UV painting

Benefits

  • Capable of measuring light and checking light amount distribution on three-dimensional objects for which illuminometers cannot be used to measure light, sections into which illuminometers cannot fit, and sections that are moving while light is being irradiated.
  • Useful for adjusting how to place products and how to irradiate light because sections that become shadows of three-dimensional objects can be checked with density.

UV coating

[Image] UV coating

Benefits

  • Capable of measuring light amount during roll conveyance in which illuminometers cannot be used to measure light amount.
  • Capable of measuring and checking distribution in the width direction immediately (on an entire surface), thus allowing measurement to be completed in one test and the time needed for making adjustments and assessments to be reduced.

UV bonding

[Image] UV bonding

Benefits

  • Unevenness of UV exposure and decreases in the amount of light can be checked by observing the intensity of the color.
  • Allows the height and position of UV lamps to be adjusted when equipment is installed.
  • Allows checking of the time for replacing lamps.

UV printing

[Image] UV printing

Benefits

  • Reduction in the accumulated light amount due to degradation of UV lamps and dirt on reflective plates can be easily checked with density, which makes it possible to confirm that the lamps and reflective plates should be replaced and identify causes of problems if they occur.
  • Attaching UVSCALE to the roll width direction of sheets and irradiating UV light while feeding the sheets makes it possible to check actual UV light amount distribution in the width direction.

UV molding

[Image] UV molding

Benefits

  • Capable of visualizing light amount distribution on entire molding surfaces, which allows design of lamp placement and judgment to be carried out effectively.
  • Capable of measuring the amount of light that passes through dies and irradiates resin, which makes it possible to understand the actual light amount and light amount distribution.

Specifications

Type Product size Thickness Classification
Roll type Sheet type
UVSCALE L 270 mm × 5 m 270 mm × 200 mm
(5 sheets)
0.1 mm Mono sheet type
UVSCALE M 0.1 mm × 2 Two sheet type
UVSCALE H 0.1 mm × 2 Two sheet type

Light amount measurement range

Measurable lamp Type Effective light amount measurement range *1 (mJ/cm2)
High-pressure mercury lamp UVSCALE L 4-200
UVSCALE M 50-2000
UVSCALE H 800-40000
Metal halide lamp UVSCALE L 6-200
UVSCALE M 30-1000
UVSCALE H 700-20000
Low-pressure mercury lamp UVSCALE L 20-3000
UV-LED lamp (365nm) UVSCALE L 200-6000
UVSCALE M 300-7000
UVSCALE H 5000-100000
  • *1 The measurement ranges mentioned above is when FUD-7010E is used.
    The light amount range that can be visually checked is the density on standard color samples (0.30 to 0.75).
  • * Applies to wavelengths in the 200 to 420 nm range
  • * This does not guarantee the absolute values of UV light amount values.