--- title: BlueLight Technology | SensoPart description: "BlueLight technology for optical sensors: ✓ reliable detection of standard & hard-to-see objects ➧ Learn everything about our BlueLight sensors!" --- Country and language selection - [deutsch](https://www.sensopart.com/de/) - [english](https://www.sensopart.com/en/) - [français](https://www.sensopart.com/fr/) - [中文](https://www.sensopart.com/zh/) - [한국어](https://www.sensopart.com/ko/) language - Login - [Login](https://www.sensopart.com/en/login/) - [registration](https://www.sensopart.com/en/login/) Search - [Career](https://www.sensopart.com/en/company/career/open-positions/) - [Contact](https://www.sensopart.com/en/company/contact/) - [Downloads](https://www.sensopart.com/en/service/downloads/) [![SensoPart](https://info.sensopart.com/hubfs/raw_assets/public/SensoPart_August2021/images/sensopart_2020.svg "SensoPart")](https://www.sensopart.com/en/) - [Products](https://www.sensopart.com/en/products/) - [Applications & Industries](https://www.sensopart.com/en/applications-and-industries/) - 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Robot. Vision.](https://www.sensopart.com/en/applications-and-industries/industries/robotics/) - [Generation 4.0](https://www.sensopart.com/en/in-focus/generation-40/) - [Industry 4.0](https://www.sensopart.com/en/in-focus/industrie-40/) - [IO-Link](https://www.sensopart.com/en/in-focus/io-link/) - [Target Mark 3D](https://www.sensopart.com/en/in-focus/target-mark-3d/) - [Company](https://www.sensopart.com/en/company/company-profile/) - [Company profile](https://www.sensopart.com/en/company/company-profile/) - [Quality](https://www.sensopart.com/en/company/quality/) - [Responsibility](https://www.sensopart.com/en/company/responsibility/sustainability/) - [Sustainability](https://www.sensopart.com/en/company/responsibility/sustainability/) - [Career at SensoPart](https://www.sensopart.com/en/company/career/) - [Open positions](https://www.sensopart.com/en/company/career/open-positions/) - [Contact](https://www.sensopart.com/en/company/contact/) - [News](https://www.sensopart.com/en/company/news/) # Your guide to BlueLight sensing technology Increasingly in industry, the parts that need to be detected most often, appear to be designed almost perfectly to avoid detection. They are either dark, shiny and curved or dark and ultra reflective. All of which present significant challenges to the common red light sensor. But the solution is at hand in the form of BlueLight sensors which offer a huge leap forward in reliable detection. ## Contents: - [What is BlueLight sensing technology](https://info.sensopart.com/en/bluelight-technology#what-is-bluelight) - [What types of objects need to have reliable and accurate detection?](https://info.sensopart.com/en/bluelight-technology#what-types-of-objects) - [What are the differences between red light and BlueLight sensors?](https://info.sensopart.com/en/bluelight-technology#what-are-the-differences) - [How to detect dark objects](https://info.sensopart.com/en/bluelight-technology#how-to-detect) - [Key applications using BlueLight](https://info.sensopart.com/en/bluelight-technology#key-applications) - [Dark object detection in action](https://info.sensopart.com/en/bluelight-technology#dark-object-detection-in-action) [![Download brochure](https://info.sensopart.com/hs-fs/hubfs/Campaigns_international/2023/BlueLight/Email%20and%20Landing%20Page%20Artwork/Pillar%20Page%20Images/SSP%20Bluelight-Publication%20Mockup%20V2.png?width=359&height=500&name=SSP%20Bluelight-Publication%20Mockup%20V2.png "Download brochure")](https://info.sensopart.com/en/bluelight-technology/download-brochure?hsLang=en) [DOWNLOAD NOW](https://info.sensopart.com/en/bluelight-technology/download-brochure?hsLang=en) ## **What is BlueLight sensing technology** BlueLight technology is a system that takes advantage of the shorter wavelength in blue light. Less able to be absorbed, it reflects back to the sensor more readily therefore providing a more reliable object detection. [LEARN MORE](https://info.sensopart.com/en/bluelight-technology/what-is-bluelight?hsLang=en) ![What is BlueLight sensing technology](https://info.sensopart.com/hubfs/Campaigns_international/2023/BlueLight/Email%20and%20Landing%20Page%20Artwork/Cluster%20Page%201%20Images/DSC03310_bearbeitet.jpg "What is BlueLight sensing technology") ![What types of objects need to have reliable and accurate detection?](https://info.sensopart.com/hubfs/Campaigns_international/2023/BlueLight/Email%20and%20Landing%20Page%20Artwork/Cluster%20Page%201%20Images/DSC03262-bearbeitet.jpg "What types of objects need to have reliable and accurate detection?") ## What types of objects need to have reliable and accurate detection? From the metallic and light-absorbing dark components in the automotive industry, to the transparent and shiny packaging in the pharmaceutical industry, a whole spectrum of surfaces need to be detected. For this, BlueLight sensors have proven themselves as real all-rounders.  [LEARN MORE](https://info.sensopart.com/en/bluelight-technology/reliable-object-detection?hsLang=en) ## What are the differences between red light and BlueLight sensors? Both red and BlueLight sensors are highly effective at object detection, but BlueLight has the ability to go further and detect critical surfaces when red light reaches its limit. This increased ability has earned BlueLight the reputation for being the new industry standard. [LEARN MORE](https://info.sensopart.com/en/bluelight-technology/red-light-vs-bluelight?hsLang=en) ![What are the differences between red light and BlueLight sensors?](https://info.sensopart.com/hubfs/Campaigns_international/2023/BlueLight/Email%20and%20Landing%20Page%20Artwork/Pillar%20Page%20Images/DSC03352_bearbeitet.jpg "What are the differences between red light and BlueLight sensors?") [![SSP-057\_Red vs Bluelight header banner V0](https://info.sensopart.com/hs-fs/hubfs/SSP-057_Red%20vs%20Bluelight%20header%20banner%20V0.png?width=2000&height=333&name=SSP-057_Red%20vs%20Bluelight%20header%20banner%20V0.png "SSP-057_Red vs Bluelight header banner V0")](https://info.sensopart.com/en/bluelight-technology/download-comparison?hsLang=en) ![How to detect dark objects](https://info.sensopart.com/hubfs/Campaigns_international/2023/BlueLight/Email%20and%20Landing%20Page%20Artwork/Cluster%20Page%201%20Images/automotive%202.jpg "How to detect dark objects") ## How to detect dark objects The secret lies in different wavelengths. Unlike red light, blue light has a much shorter wavelength which means it doesn't penetrate the surface of objects as deeply. This means that the beam from blue light sensors is therefore more able to reflect back, easily detecting dark objects, even at shallow angles of incidence. [LEARN MORE](https://info.sensopart.com/en/bluelight-technology/how-to-detect-dark-objects?hsLang=en) ## Key applications using BlueLight Increasingly important in industries from automotive to pharmaceutical, dark, shiny, curved and transparent surfaces need to be detected instantly and reliably on conveyor belts to facilitate the onward manufacturing process. [LEARN MORE](https://info.sensopart.com/en/bluelight-technology/application-challenges?hsLang=en) ![Key applications using BlueLight](https://info.sensopart.com/hubfs/Campaigns_international/2023/BlueLight/Email%20and%20Landing%20Page%20Artwork/Pillar%20Page%20Images/Navigation%20Icons/cluster%205%20icon.png "Key applications using BlueLight") ![Dark object detection in action](https://info.sensopart.com/hubfs/Campaigns_international/2023/BlueLight/Email%20and%20Landing%20Page%20Artwork/Cluster%20Page%205%20Images/vlcsnap-2023-03-27-07h26m50s530_bearbeitet.jpg "Dark object detection in action") ## Dark object detection in action For a side-by-side demonstration of how red light and blue light sensors perform under varying conditions, and with different surfaces and angles of incidence, watch this direct comparison video. [LEARN MORE](https://info.sensopart.com/en/bluelight-technology/dark-object-detection-in-action?hsLang=en) ## Find the right BlueLight sensor Discover the ideal BlueLight sensor for your individual application in our range. Find out more about our diverse selection of sensors and their respective features. [LEARN MORE](https://www.sensopart.com/en/products/optical-sensors/photoelectric-sensors/bluelight-sensors/) [![SensoPart BlueLight Range ](https://info.sensopart.com/hubfs/Campaigns_international/2023/BlueLight/Email%20and%20Landing%20Page%20Artwork/overview_bluelight_range.jpg "SensoPart BlueLight Range ")](https://www.sensopart.com/en/products/optical-sensors/photoelectric-sensors/bluelight-sensors/) ![SensoPart - Detect the difference.](https://info.sensopart.com/hubfs/Campaigns_international/2023/BlueLight/Email%20and%20Landing%20Page%20Artwork/Pillar%20Page%20Images/2020_sensopart_people_3393_done.jpg "SensoPart - Detect the difference.") ## **BlueLight is available at** ![SensoPart](https://info.sensopart.com/hs-fs/hubfs/Campaigns_international/2023/BlueLight/Email%20and%20Landing%20Page%20Artwork/Pillar%20Page%20Images/SENSOPART_Logo_10_4c_cropped.png?width=350&height=76&name=SENSOPART_Logo_10_4c_cropped.png "SensoPart") To see the complete range and technical specifications of SensoPart BlueLight sensors, and to get in touch or request a quote, please click here. [GET IN TOUCH](https://info.sensopart.com/en/bluelight-technology/contact-us?hsLang=en) ### To stay updated and see how BlueLight sets the new standard for industrial automation, sign-up to the newsletter. 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