Cold mirror: A filter that transmits near-infrared light and reflects visible light.

The Kansai Expo is being held as an international event where cutting-edge technologies, services, and cultural expressions from around the world gather under the grand theme of "Designing a Future Society Where Life Shines" (as of the article dated September 29, 2025). From AI-driven autonomous robots and next-generation mobility to immersive video experiences, space exploration technologies, and future medical and healthcare innovations, a wide range of innovative technologies are being showcased right before the eyes of visitors, providing a valuable opportunity to experience the vision of society's future up close. In our series, we have focused on optical thin films and fine pattern processing (metallization) technologies, which function as the unsung heroes behind these cutting-edge technologies, introducing them over seven installments. Optical thin films enable precise light control, such as reflection, transmission, and wavelength selection, playing an essential role in various advanced devices like sensors, cameras, projectors, and space equipment. Meanwhile, fine pattern processing serves as a foundational technology that supports the high precision of electronic devices, biosensors, and next-generation displays by controlling structures at the nanometer level. For more details, please visit our company website.

We have introduced the latest dicing cutting machine at the Higashi-Osaka factory of Adachi New Industry Co., Ltd. With this new equipment, Adachi New Industry Co., Ltd. can now achieve in-house processing from the design of optical thin films and metal pattern processing to film formation, etching, lift-off pattern processing, and chip creation, all in a consistent manner. We will strive to meet your expectations by aiming for even higher quality, precision, and stable supply. ■Specifications Maximum work size: φ8 inches (up to 141×141mm) Minimum cut size: 3×3 mm 　　　　　　　　　*We will achieve processing of even smaller sizes in the future. ■Processable substrates - Optical glass substrates (B270, D263, blue plate, quartz, etc.) - Silicon wafers *We also plan to gradually increase the types of processable substrates in the future.

We have added a new product to our standard inventory lineup: a "UV transmission filter" that cuts visible light while allowing infrared wavelengths to pass through, which has been frequently inquired about! ◆ This product simultaneously transmits ultraviolet and infrared light while cutting all visible light. It allows UV-A wavelengths to pass through while cutting visible light, with a rise starting from near-infrared. It is a very tricky film formation, but we encourage you to give it a try. ◆ Regarding standard inventory products from Adachi New Industry Co., Ltd.: - I need a few pieces quickly for product development and performance testing... - I want to get a rough idea for now... - I would like to try a prototype with a slightly altered shape... Adachi New Industry sincerely addresses the voices of such customers! In today's world, where simulation technology has advanced, we will respond quickly to customer requests by providing standard inventory products, so please feel free to contact us!

Currently, many moisture detection methods are contact-based and require direct measurement of the target object. By utilizing optical filters, there is a possibility to detect moisture non-contact in real-time using specific wavelengths such as infrared. To detect moisture (water) using its absorption characteristics, it is necessary to target specific wavelength bands. Water shows strong absorption in certain infrared (IR) regions, and the following wavelengths are commonly used for moisture detection. ◆◆ Are you facing any of these issues? - The influence of visible light makes it difficult to accurately measure moisture absorption wavelengths. - Errors occur due to the reflectivity of the measurement target. - It is challenging to consistently detect moisture in different materials. - It is problematic because it is easily affected by ambient light. - Balancing miniaturization of devices and cost is difficult. For more information, please visit our website.