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We would like to introduce two fluorescent marker products using the ultraviolet-excited phosphor "Lumisis." <Lumisis Marker> This is a spherical acrylic particle (approximately 10μm) containing Lumisis, suitable for visualizing fluids. Debris in the fluid is not visible, and no optical filters are required. When illuminated with a single light source, it fluoresces in different colors. Since it uses invisible light, there is almost no halation during photography. <Lumisis Marker Oil Mist> This is a mist for visualizing airflow, created by adding Lumisis to a colorless, transparent diluent. When exposed to a light source such as a UV laser, the color changes. It allows for color differentiation in red, green, and blue with a single light source, making it easy to capture clear visualization even in areas where airflow mixes. By using invisible light, it does not capture dust or particles, allowing for a clear depiction of airflow and eliminating the need for optical filters or image processing. *For more details, please refer to the materials. Feel free to contact us with any inquiries.*

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The "Lumisis Marker Oil Mist" is a mist for visualizing airflow, created by adding a UV-excited fluorescent material to a colorless, transparent diluent. When exposed to a light source such as a UV laser, the color changes. There are three colors available, allowing for red, green, and blue differentiation with a single light source, making it easy to capture visualizations even in mixed airflow situations. Since it uses invisible light, it does not reflect dust or particles, clearly capturing the airflow and eliminating the need for optical filters or image processing. 【Features】 ■ Effective for visualizing jets, turbulence, and mixed airflow ■ Contributes to high precision in PIV analysis images and improves shooting efficiency ■ Uses the rare earth complex "Lumisis" as the light-emitting material *For more details, please refer to the materials available for PDF download. Feel free to contact us with any inquiries.

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"LumisisMarker" is a spherical resin particle containing our ultraviolet-excited phosphor "Lumisis." The ultraviolet-excited phosphor Lumisis is excited by ultraviolet wavelengths and shows a strong tendency to emit various colors such as red, blue, and green depending on the type. Various thermoplastic resins such as acrylic, nylon, polystyrene, and ABS can be used as the base material. 【Features】 ■ The excitation wavelength and fluorescence wavelength are the same as Lumisis's excitation wavelength. ■ The particle size can be controlled from the nanometer order to the 100μm order. ■ The proportion of Lumisis contained can be controlled. ■ The specific gravity is almost the same as that of the base resin. *For more details, please refer to the PDF document or feel free to contact us.

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The Lumisis Marker fluoresces strongly at wavelengths of 290 to 405 nm, and it has been confirmed that it also fluoresces at the visible light wavelength of 405 nm. When using ultraviolet light, which is invisible, only the Lumisis Marker fluoresces, and other objects such as walls and debris do not reflect light, making them invisible. When using visible light at 405 nm (purple) as the light source, the Lumisis Marker emits a fluorescent color, while other objects like walls and debris appear purple. When using common visible light such as blue, green, red, or white, all objects including the Lumisis Marker reflect the same color as the light source or the color of the objects themselves. *For more details, please refer to the PDF document or feel free to contact us.*

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The halation caused by visible light sources results in bright halation because the light that directly hits the object is reflected. Since ultraviolet light is invisible, even if halation occurs, it cannot be seen. The halation caused by the fluorescence of Lumisis Marker excited by ultraviolet light is much weaker than that caused by the light source, so it has little impact on photography. 【Characteristics of Visible Light Source (Red)】 ■ Lumisis Marker glows in the same color as the light source ■ Walls strongly reflect light *For more details, please refer to the PDF document or feel free to contact us.

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Here are some examples of applications for visualization experiments using resin particles "LumisisMarker." In the case of a visible light source (for example, blue), everything in the fluid around the object glows in the same color as the light source. With a visible light source (purple 405nm), the Lumisis Marker appears green. The object and debris or bubbles glow in the same color as the light source. Additionally, with an invisible light source (ultraviolet), the Lumisis Marker also appears green, while the object, debris, and bubbles are not visible. 【Features of Visible Light Source (for example, blue)】 ■ Conventional visualization methods ■ Masking treatment is required to separate the boundary between the object and particles ■ Unwanted information such as debris is also captured *For more details, please refer to the PDF document or feel free to contact us.

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Here are some examples of applications for visualization experiments using the resin particles "LumisisMarker." With a visible light source (for example, red), bubbles, particles, and walls all emit light of the same color as the source. With a visible light source (purple 405nm), Lumisis Marker appears blue, while bubbles and debris, as well as the walls, emit light of the same color as the source. Additionally, with an invisible light source (ultraviolet), Lumisis Marker appears blue, while bubbles and debris are not visible. 【Features of visible light source (for example, red)】 ■ Conventional visualization methods ■ Masking processing is required to separate the boundaries between objects and particles ■ Unwanted information such as debris is also captured *For more details, please refer to the PDF document or feel free to contact us.

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Here are some examples of applications for visualization experiments using resin particles "LumisisMarker." With a visible light source (for example, green), all particles and wall surfaces glow in the same color as the light source. With a visible light source (purple 405nm), the Lumisis Marker glows green, and the wall surface glows in the same color as the light source. Additionally, with an invisible light source (ultraviolet), the Lumisis Marker appears green, while the wall surface is not visible. 【Features】 ■ Visible light source (for example, green) - In conventional visualization methods, both the wall surface and particles glow in the same color as the light source. - Visualization of flow is almost impossible. ■ Invisible light source (ultraviolet) - Regardless of the type of camera, it is possible to capture clear particle behavior with almost no halation on the wall surface without using optical filters. *For more details, please refer to the PDF document or feel free to contact us.

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The fluid mixed with Lumisis Marker, which fluoresces in different colors from multiple entrances, was visualized during multiphase and mixing flow in the piping. The boundary layer flow near the wall was also visualized. Using an invisible light source (ultraviolet), it is possible to capture the behavior of particles emitting different colors simultaneously with a color camera, and objects such as debris or bubbles other than Lumisis Marker are not visible. With a visible light source (purple 405nm), all objects other than Lumisis Marker, such as walls and bubbles, glow purple, making it unsuitable for capturing near the boundary layer. 【Features】 ■Multiphase flow and mixing flow - Lumisis Markers of different colors can be traced. ■Boundary layer flow near the wall - Detailed visualization of flow within the boundary layer very close to the wall is possible. ■Interfacial flow between two liquids - The flow at the interface of different fluids can be visualized with a single light source. *For more details, please refer to the PDF document or feel free to contact us.

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We visualized the shape change of the liquid surface and the mixing process of the liquid when a droplet containing a red LumisisMarker was dropped onto a liquid surface containing a blue LumisisMarker. Under visible light source (purple 405nm), the LumisisMarkers appear red and blue, and the interface between the droplet and the liquid surface glows in the same color as the visible light source. Under invisible light source (ultraviolet), the LumisisMarkers appear red and blue, but the interface was not visible. Although fluorescent dyes become cloudy in the mixing area, the LumisisMarkers can be tracked because the fluorescent colors of the particles are different. 【Features of the visible light source (purple 405nm)】 - When using a color camera, halation can be removed through image processing. - The behavior of each particle can be captured. - When using a monochrome camera with an optical filter that transmits wavelengths longer than 405nm, halation is removed, but the two types of particles are captured as the same color. - When using a bandpass filter, it is possible to capture the behavior of one color of particles. *For more details, please refer to the PDF document or feel free to contact us.

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The "CET200805-U365" is an irradiation device that uses UV light (wavelength 365nm). Phosphors: It can accurately excite and emit light from Lumisys and related products such as Sun Lumisys ink, Lumisys Checker, and Lumisys Marker. By using it together with Lumisys Checker, Lumisys Marker, and others, you can conduct motion observation and video recording under invisible light without being affected by excess visible light. 【Features】 ■ Irradiation device using UV light (wavelength 365nm) ■ Accurately excites and emits light from phosphors such as Lumisys and related products ■ Allows for motion observation and video recording under invisible light without being affected by excess visible light *For more details, please refer to the PDF document or feel free to contact us.

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The "Lumisis Marker" is a spherical acrylic particle (approximately 10μm) containing the ultraviolet-excited phosphor "Lumisis." Bubbles and debris on walls or in fluids are invisible, and optical filters are unnecessary. Due to the use of invisible light, the existing issue of glare from photography is almost nonexistent. 【Features】 ■ Particles that fluoresce in different colors when illuminated by a single light source ■ Almost no glare from photography due to the use of invisible light ■ Bubbles and debris on walls or in fluids are not visible ■ No optical filters required *For more details, please refer to the PDF document or feel free to contact us.

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The "Lumisis Light" is a compact and lightweight flashlight-type powerful UV-LED light. It can accurately excite and emit light from the phosphor "Lumisis" as well as related products such as "Sun Lumisis Ink," "Lumisis Marker," and "Lumisis Filament." It comes with a dedicated case, protective glasses, two dedicated batteries, and a dedicated charger. 【Features】 ■ Compact and lightweight for easy portability ■ Powerful UV-LED light in a flashlight design ■ Capable of accurately exciting and emitting light from the phosphor "Lumisis" and related products *For more details, please refer to the PDF document or feel free to contact us.

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The "Lumisis UV Laser" is a laser irradiation device that uses invisible light (wavelength 375nm). Since it uses invisible light, it is possible to avoid the occurrence of halation that has been a concern until now. Furthermore, by using the UV-excited fluorescent tracer "Lumisis Marker," it allows for observation of multiple colors (RGB) under a single light source, making it effective for observing multiphase flows and mixing flows. 【Features】 ■ Laser irradiation device using invisible light (wavelength 375nm) ■ Halation occurrence can be avoided ■ By using the UV-excited fluorescent tracer "Lumisis Marker," it allows for observation of multiple colors (RGB) under a single light source ■ Effective for observing multiphase flows and mixing flows * For more details, please refer to the PDF document or feel free to contact us. * If you wish to request a demo, please contact us.

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The "Lumisis Marker" is a spherical acrylic particle (approximately 10μm) that contains the ultraviolet-excited phosphor "Lumisis." Complicated image processing such as masking is mostly unnecessary. Bubbles and debris on walls or in fluids are not visible, and optical filters are not required. Due to its invisible light, the halation caused by photography, which is a common issue, is almost nonexistent. 【Features】 ■ Particles that fluoresce in different colors when illuminated by a single light source ■ Almost no halation caused by photography due to invisible light ■ Bubbles and debris on walls or in fluids are not visible ■ Complicated image processing such as masking is mostly unnecessary ■ No optical filter required *For more details, please refer to the PDF document or feel free to contact us.

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"Rumisys Filament(R)" is a filament made from ABS resin and PLA resin that contains the heat-resistant phosphor "Rumisys(R)." It can be printed under the same conditions as general ABS and PLA resin filaments for 3D printing. Additionally, it emits a bright glow when exposed to ultraviolet light (black light) in the range of 340 to 385 nm. 【Features】 ■ Emits light when exposed to ultraviolet light ■ Reliable Japanese manufacturing *For more details, please download the PDF or feel free to contact us.

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