Information on standard stock items (optical filters)

In recent years, the boundary between beauty and technology has begun to rapidly dissolve. The demand for at-home skincare devices continues to expand globally, with some areas, such as light-based treatment devices (phototherapy), recording growth of over 20% year-on-year as of 2024. These products offer more than just simple "apply and layer" beauty. They provide an experience that precisely delivers physical energies such as light, heat, electric currents, and sound waves to the skin. Let’s pose a question. "What exactly is controlling that light?" One answer lies in optical thin-film technology. Invisible nanometer-scale films quietly but decisively influence the performance of beauty devices. This article will explore the role and potential of optical thin films in the beauty tech field from the perspective of product development and engineering. 1: What is optical thin film? 2: Scenes of optical thin film utilization in beauty tech 3: Points and precautions during design and adoption 4: Future prospects—The fusion of personalized beauty and optical thin films Summary: "Invisible technology" is changing the beauty experience. For more details, please check our website.

"Extract only the desired light" — this is the role of optical components known as band-pass filters (BPF). We will explain the mechanism and selection of BPFs, which are used in various fields such as medical, industrial, and environmental measurement, in an easy-to-understand manner, even without specialized knowledge. Camera sensors, medical fluorescence microscopes, factory appearance inspection devices, environmental measurement sensors — these seemingly completely different devices share a common technical challenge: "accurately extracting only the necessary wavelengths from light that contains countless wavelengths." For example, in fluorescence imaging, it is essential to detect only the weak fluorescence signals amidst strong excitation light. In factory appearance inspection, it is necessary to shut out stray light from daylight and fluorescent lamps to detect only the illumination wavelengths. The optical component responsible for this "light selection" is the band-pass filter (BPF). The name may sound complicated, but once you understand its mechanism, it is based on a very simple principle. We will present the basic concepts of BPFs, manufacturing principles, and points for application selection in a format that can be read in five minutes. Please check our company website for more information.

We sincerely apologize for the inconvenience, but we would like to inform you of our business hours and shipping schedule for this year's Golden Week as follows. We understand that this may cause some difficulties for our business partners, and we appreciate your understanding and cooperation. ■Closed Days: April 29, 2026 (Wednesday) and May 2, 2026 (Saturday) to May 6, 2026 (Wednesday) ■Shipping Start Date: May 7, 2026 (Thursday) <<Request>> Due to the current situation in the Middle East coinciding with the Golden Week, significant congestion is expected, which may disrupt transportation. Our company, Adachi Shin Sangyo Co., Ltd., is committed to taking the utmost care to minimize any inconvenience. We kindly ask for your understanding and consideration, and to handle your orders with ample lead time.

Sports are constantly evolving. The lightweighting of equipment, the high-strength of materials, form optimization through data analysis, and the high functionality of apparel—technological innovations for improving competitive performance are now spreading not only among top athletes but also across all sporting environments. In recent years, advancements in sensor technology and AI analysis have significantly shifted sports from "sensation" to "science." However, what underpins this transformation is, in fact, "light." Visibility, tracking, sensing, and presentation—all these aspects utilize light information, and it is optical thin film technology that influences their accuracy and comfort. Now, this "technology that controls light" is poised to unlock new possibilities in sports. It is not just a simple coating; it is an advanced spectral design technology that selects wavelengths, controls reflection, and blocks unwanted light. This technology enhances athletes' decision-making abilities, improves sensor accuracy, and serves as a foundational technology for optimizing the competitive environment itself. ◆ Enhancing athlete performance × Optical thin films ◆ Data sports × Optical filters ◆ Integration with biosensing ◆ Towards future sports devices For more details, please check our company website.