You are here: products ·uvscale film HDescription: Fuji Uvscale Film H photosensitive film, suitable for measuring the distribution of surface UV light irradiation.
Uvscale photosensitive film for measuring the distribution of UV light irradiation.
Fuji Uvscale Film H: Overview
The Uvscale film was recently introduced by Fuji Film with the aim of enabling the verification and study of light distribution produced by a UV source.
To better meet the diverse potential uses of Uvscale, Fuji Film has developed this product family, designed across various measurement ranges to offer
a product line capable of covering most applications. In particular, the Uvscale H film represents the highest grade available in the Uvscale
product range. In manufacturing and production settings, there are numerous situations where verifying the correct level of applied UV light, as
well as its effective coverage over the treated area, is essential. The ability to control this critical parameter allows for the replacement of
UV lamps when their light output decreases, thereby improving production quality levels and ultimately increasing the repeatability of the
production process. The Uvscale product range is, in fact, a study, analysis, and verification methodology that can be advantageously used in the
context of surface UV irradiation phenomena, without requiring specific skills or technical knowledge for its use. The use of Uvscale
photosensitive film is very simple, fast, and intuitive, requiring no special preparation. From the very first use, the image imprinted with
various shades of blue provides a clear visualization of the UV irradiation distribution, which can be interpreted by direct comparison with the
colorimetric chart provided, or through more accurate and repeatable electronic measurement tools.
Fuji Uvscale Film H: Key Features
easy "mapping" of surface UV irradiation distribution;
good repeatability of results obtained in measurement campaigns;
availability of optional electronic analysis systems;
simple and intuitive use.
Fuji Uvscale Film H: Technology Overview
Based on their measurement range, Uvscale films are available in two different formats: single-sheet and double-sheet.
The most sensitive film (L) is a single-sheet format, as it is used directly with the UV light source. The additional grades (M and H) are achieved
using a second sheet that has light-reducing properties, thus modifying the operational range of the sensitive Uvscale film. The Uvscale film with
the H range is only available in a double-sheet format (two sheets type). This double-sheet type consists of a sensitive sheet coated with an
extremely homogeneous layer of microcapsules (using proprietary PSC - Particle Size Control technology). These microcapsules contain a substance
capable of changing color based on the absorbed UV radiation. An additional light-reducing sheet acts as a filter placed between the light source
and the sensitive Uvscale film.
When the Uvscale film is exposed to UV light, the dye contained in the microcapsules changes color, and the new color density can be visually assessed
(thanks to the white background of the film’s support) using the provided color scale. To prevent the film from becoming oversaturated with color,
additional Uvscale grades are achieved by using the second film provided (M and H ranges). This light-reducing film acts as a filter, controlling
the amount of UV radiation impacting the sensitive Uvscale film.
If you have any doubts, further useful information can be obtained by consulting the FAQ Uvscale
Fuji Uvscale Film H: Technical Specifications
denomination: Uvscale;
product code: H;
type: double sheet film;
roll dimensions: 270 mm x 5 meters (length);
measurable UV sources: Hg lamp (high and low pressure), metal halide, UV LED (365 nm);
measurement range (* high pressure Hg lamp): from 800 to 40000 mJ/cm²;
measurement range (* metal halide lamp): from 700 to 20000 mJ/cm²;
measurement range (* UV led 365 nm lamp): from 5000 to 100000 mJ/cm²;
(*) this does not guarantee the absolute values of UV light. (*) measurement ranges detected using FUD-7010E. (*) applicable to wavelengths in the range of 200 to 420 nm. (*) the amount of light that can be visually controlled is the density on the standard color samples (from 0.30 to 0.75) reported in the instruction manuals.
Fuji Uvscale Film H: Usage Instructions
It is recommended to prepare the Uvscale H films well in advance of the test to allow the films to adapt to the environmental conditions in which they
will be used. Unroll an appropriate amount of film for the test, ensuring that it rests on a clean and dry surface, preferably in low light. These
preparatory actions will help the films to lay flat, simplifying the subsequent cutting and positioning operations described below. During these
and the following operations, place only the glossy sides of the films on the work surfaces (since the matte sides, in combination, determine the
density and distribution of the recorded color), to avoid any accidental contact that could expose the films before testing.
Proceed to cut the Uvscale H film sheets to the desired size using a simple pair of scissors. Since the Uvscale Film consists of two layers
(a photo-reducing film and a sensitive film), be sure to cut both films, ensuring that the defined dimensions are suitable for the area to be
tested.
Handle the Uvscale H with care, avoiding any dirt or bending of the sheets to be tested. Align the two films so that the cut shapes match for both
layers. The sensitive film should be placed with the shiny side facing down on the surface, while the matte side should be covered by the
photo-reducing film. Keep this in mind during the cutting process.
Ensure that the work area to be tested is properly prepared and cleaned, and double-check the correct positioning of the ultraviolet light source.
After aligning the two Uvscale films correctly, place them in the area intended for testing.
Activate the UV light source to begin emitting the ultraviolet light to be analyzed. For details on how to conduct the test (e.g., light intensity,
type of UV source, etc.), further information can be obtained from the instruction manual provided with the Uvscale film.
Deactivate the UV light source to conclude the test. Remove the exposed Uvscale film from the work area.
The Uvscale films will now display the mapping of the UV light exposure zones detected.
Evaluate the test results using the provided instruction manual, which includes a colorimetric scale and reference charts.
The film will display the mapping of the UV exposure applied, recording the intensity of the detected light exposure based on the
developed color density. This can be visually assessed by comparing it with the colorimetric chart.
THE NEXT STEPS ARE OPTIONAL AS THEY REQUIRE ADDITIONAL ANALYSIS TOOLS, WHICH ARE AVAILABLE FOR SEPARATE PURCHASE.
If more accurate and repeatable evaluations of the results are necessary, it is possible to scan the exposed films (e.g., using an Epson™ Perfection
scanner) to obtain electronic images that can be saved, stored, and "archived" (for future comparisons). Most importantly, these images can be
analyzed using optional supporting software.
Once digital scans of the Uvscale films exposed during the event being analyzed are prepared, you can use the optional FUD-7010E support software
to perform additional analyses. This includes tasks such as evaluating colorimetric results using false colors, rendering three-dimensional
profiles, assessing the amount of light exposure, and more.
You are here: products · uvscale film H Description: Fuji Uvscale Film H photosensitive film, suitable for measuring the distribution of surface UV light irradiation.
Uvscale Film H
Uvscale photosensitive film for measuring the distribution of UV light irradiation.
Fuji Uvscale Film H: Overview
The Uvscale film was recently introduced by Fuji Film with the aim of enabling the verification and study of light distribution produced by a UV source.
To better meet the diverse potential uses of Uvscale, Fuji Film has developed this product family, designed across various measurement ranges to offer
a product line capable of covering most applications. In particular, the Uvscale H film represents the highest grade available in the Uvscale
product range. In manufacturing and production settings, there are numerous situations where verifying the correct level of applied UV light, as
well as its effective coverage over the treated area, is essential. The ability to control this critical parameter allows for the replacement of
UV lamps when their light output decreases, thereby improving production quality levels and ultimately increasing the repeatability of the
production process. The Uvscale product range is, in fact, a study, analysis, and verification methodology that can be advantageously used in the
context of surface UV irradiation phenomena, without requiring specific skills or technical knowledge for its use. The use of Uvscale
photosensitive film is very simple, fast, and intuitive, requiring no special preparation. From the very first use, the image imprinted with
various shades of blue provides a clear visualization of the UV irradiation distribution, which can be interpreted by direct comparison with the
colorimetric chart provided, or through more accurate and repeatable electronic measurement tools.
Fuji Uvscale Film H: Key Features
Fuji Uvscale Film H: Technology Overview
Based on their measurement range, Uvscale films are available in two different formats: single-sheet and double-sheet.
The most sensitive film (L) is a single-sheet format, as it is used directly with the UV light source. The additional grades (M and H) are achieved
using a second sheet that has light-reducing properties, thus modifying the operational range of the sensitive Uvscale film. The Uvscale film with
the H range is only available in a double-sheet format (two sheets type). This double-sheet type consists of a sensitive sheet coated with an
extremely homogeneous layer of microcapsules (using proprietary PSC - Particle Size Control technology). These microcapsules contain a substance
capable of changing color based on the absorbed UV radiation. An additional light-reducing sheet acts as a filter placed between the light source
and the sensitive Uvscale film.
When the Uvscale film is exposed to UV light, the dye contained in the microcapsules changes color, and the new color density can be visually assessed (thanks to the white background of the film’s support) using the provided color scale. To prevent the film from becoming oversaturated with color, additional Uvscale grades are achieved by using the second film provided (M and H ranges). This light-reducing film acts as a filter, controlling the amount of UV radiation impacting the sensitive Uvscale film. If you have any doubts, further useful information can be obtained by consulting the FAQ Uvscale
Fuji Uvscale Film H: Technical Specifications
(*) this does not guarantee the absolute values of UV light.
(*) measurement ranges detected using FUD-7010E.
(*) applicable to wavelengths in the range of 200 to 420 nm.
(*) the amount of light that can be visually controlled is the density on the standard color samples (from 0.30 to 0.75) reported in the instruction manuals.
Fuji Uvscale Film H: Usage Instructions
It is recommended to prepare the Uvscale H films well in advance of the test to allow the films to adapt to the environmental conditions in which they will be used. Unroll an appropriate amount of film for the test, ensuring that it rests on a clean and dry surface, preferably in low light. These preparatory actions will help the films to lay flat, simplifying the subsequent cutting and positioning operations described below. During these and the following operations, place only the glossy sides of the films on the work surfaces (since the matte sides, in combination, determine the density and distribution of the recorded color), to avoid any accidental contact that could expose the films before testing.
The Uvscale films will now display the mapping of the UV light exposure zones detected.
THE NEXT STEPS ARE OPTIONAL AS THEY REQUIRE ADDITIONAL ANALYSIS TOOLS, WHICH ARE AVAILABLE FOR SEPARATE PURCHASE.
Fuji Uvscale Film H: Reference Documentation
Fuji Uvscale Film H: Main Applications
The Uvscale films have been advantageously used in applications such as the following:
It is also recommended to refer to the specific section containing the Application Notes prepared by Fuji Film for the Uvscale Film.
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