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  6. Surface observation tool "D-Light" for detecting foreign objects, dirt, and scratches.

Surface observation tool "D-Light" for detecting foreign objects, dirt, and scratches.

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ViEST

last updated:Dec 24, 2025

Shin Nippon Air Technologies Company Solution Division
Shin Nippon Air Technologies Company Solution Division
  • Special site
  • Official site

Visualize surface foreign substances, dirt, and scratches! It is well-received as a daily management tool for yield management, quality control, cleaning management, and hygiene management. *Demo units available for loan.

This is a tool that helps improve the efficiency of visual surface inspections. We have prepared two types. ■ D-Light Type-F The popular "D-Light" detection tool for contaminants has undergone a full model change. It has achieved higher output, compactness, lightweight design, and lower power consumption. The detection capability and portability have been further enhanced. Since the contaminants themselves emit light, they can be clearly detected visually. Additionally, by observing the differences in the emitted light colors, it is possible to estimate the types of contaminants. This is a type of surface foreign matter detection tool that has not existed before. ■ D-Light Type-P This tool is suitable for observing surface conditions, such as detecting surface scratches and adhering particles, as well as checking patterns for polishing and decoration. There has been a challenge in observing metallic surfaces, such as those on cars, due to glare caused by diffuse reflection from the surface. This product can reduce the impact of such glare, allowing for the visibility of foreign matter and other elements. It can also be used for observing powder particles and oil mist. =================== We have demo units available for loan. Please feel free to apply from our company website. ⇒ https://www.snk.co.jp/viest/

    Semiconductor inspection/test equipmentVisual Inspection EquipmentDefect Inspection Equipment
Dライトシリーズ02.jpg

Surface observation tool "D-Light" for detecting foreign objects, dirt, and scratches.

Dライトシリーズ02.jpg
Dライトシリーズ02.jpg 小便器_照射前.jpg 小便器_照射中.jpg キーボード_DライトF照射前.jpg キーボード_DライトF照射中.jpg P観察例_パンチング床_照射前.jpg P観察例_パンチング床_偏光あり.jpg P観察例_メタリック塗装_偏光なし.jpg P観察例_メタリック塗装_偏光あり.jpg
  • For detailed information, please visit "New Japan Air Conditioning ViEST/Surface Observation Tool" HP.
  • Special site - Product/service details - https://pr.mono.ipros.com/snk/product/

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basic information

■Weight: 181 [g] ■Dimensions: W139 × D22 × H33 [mm] ■Light Color: D-Light Type-F: Violet D-Light Type-P: Green ■Usage Scenarios: Stationary: Can be installed inside equipment or on a desk for long continuous illumination Portable: Can be used without a power cord (up to 4 hours; please consult us if longer usage is needed) ■Applications: By combining with our product 'D-Scope', it enables photography, recording, and particle analysis.

Price range

P3

Delivery Time

P4

※If the item is in stock, we will deliver it within two weeks after your order. Please feel free to contact us regarding the availability of stock through our company website or other means.

Applications/Examples of results

We are adopting it in various situations that require regular cleanliness management. - Yield management on production lines - Quality control such as pre-shipment inspections - Cleanliness checks after cleaning - Quality and hygiene management related to food, biotechnology, and pharmaceuticals - Cleaning management of medical instruments and tools - Surface quality inspection of electronic precision devices like mobile devices, automobiles, and materials - Evaluation of the finish of surface polishing and decoration - Surfaces of metals, plastics, resins, etc. Additionally, we have a proven track record of implementation in a wide range of industries, including research and development.

Detailed information

  • 小便器_照射前.jpg

    Sanitary ware (before D-light irradiation)

  • 小便器_照射中.jpg

    Sanitary ceramics (under D-light irradiation) D-light was applied to the sanitary ceramics. The dirt shines and can be clearly seen.

  • キーボード_DライトF照射前.jpg

    Keyboard (before D-light irradiation)

  • キーボード_DライトF照射中.jpg

    Keyboard (D-Light in use) The D-Light has been applied to the keyboard. You can check for dust and dirt that has adhered to it.

  • P観察例_パンチング床_照射前.jpg

    Perforated floor panel of the clean room (before D-light irradiation)

  • P観察例_パンチング床_偏光あり.jpg

    Perforated floor panel in the clean room (during D-light irradiation) Due to the rough surface, normal lights cause severe diffuse reflection, making observation difficult. D-light can reduce the effects of diffuse reflection, allowing for visibility of dirt and falling dust.

  • P観察例_メタリック塗装_偏光なし.jpg

    Around the car door handle / Metallic painted surface (under light irradiation) When light is irradiated on the metallic painted surface of a car, as shown in the photo, the surface condition cannot be observed due to diffuse reflection.

  • P観察例_メタリック塗装_偏光あり.jpg

    Around the car door handle / Metallic painted surface (under D-light illumination) The influence of diffuse reflection on the metallic painted surface can be almost eliminated, allowing for the visual detection of dust that is adhering to it.

catalog(2)

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Surface Foreign Object Identification Visual Tool D-Light Type-F

Surface Foreign Object Identification Visual Tool D-Light Type-F

PRODUCT
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Surface Foreign Matter and Scratch Observation Tool D-Light Type-P

Surface Foreign Matter and Scratch Observation Tool D-Light Type-P

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News about this product(1)

Airflow photography - Camera specialized for fine particle visualization

We will exhibit a particle visualization system at the "25th International Nanotechnology Exhibition and Conference, nano tech 2026" (January 28 (Wed) - January 30 (Fri), 2026 / Tokyo Big Sight, West Hall Conference Building, West Hall 1, 1st Floor, 1W-Z34).

  • NEW
  • Seminar・Event

We will solve the issues related to the deterioration of defect rates caused by fine particles and the cleaning process in manufacturing sites. The fine particle visualization system developed by Shin Nippon Air Technologies, under the ViEST brand, combines an ultra-high-sensitivity camera and light source to visualize fine particles in clean rooms and equipment. It can capture their behavior in real-time while also quantifying particle information, making it a world-class visualization system. Currently, we are expanding the sale of systems and tools, as well as contract technical services utilizing them, both domestically and internationally. We have particularly rich experience in the semiconductor industry and clean rooms. Below are some examples of applications, but by using our technology, we can strongly promote solutions to various issues such as the deterioration of defect rates due to fine foreign substances, visualization of clean airflow, and concerns regarding site cleanliness. - Visualization investigation of fine particles and airflow in the manufacturing line and environmental improvement - Promotion of cleanliness in manufacturing equipment and environments - Cleanliness evaluation of various equipment performance - Improvement of yield and quality degradation caused by contamination issues - Support for research and development requiring visualization of fine particles and airflow - Evaluation of particle generation from products.

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Shin Nippon Air Technologies Company Solution Division

Testing, Analysis and Measurement

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  • Special site
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Phone number/address

ViEST is a brand that offers unique visualization technologies, including an unparalleled ultra-high-sensitivity "fine particle visualization system," through products and services. In terms of addressing foreign substances and airflow in manufacturing environments, we provide fine particle visualization systems and contract evaluation services by specialized visualization technical staff, boasting over 3,000 successful implementations across various industries. We can strongly promote improvements in production efficiency, yield, quality control, and solutions to clean-up challenges. If you have specific targets that require measures, please feel free to consult with us. Please also take a look at our website, which provides a detailed introduction to ViEST. ⇒https://www.snk.co.jp/viest

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