Multi-band pass filter (dual band pass filter)

Light includes "visible light," which can be seen by the human eye, and invisible light. Near-infrared (NIR) is one type of "invisible light" located right next to visible light. In fact, it is deeply involved in various devices and industrial processes around us, and its importance has been increasing in recent years. We will explain clearly from the basics of "What is near-infrared?" to the fields in which it is used, and its relationship with optical coating technology. 01: What is near-infrared? — Organizing the "companions" of light 02: Where is near-infrared used? — Expanding application fields 03: The relationship between near-infrared and optical coatings — The power of "thin films" that enhance performance 04: The precision required for near-infrared filters Summary: The key to utilizing near-infrared lies in precise optical thin films Near-infrared compatible filter "Artisan Infrared" For more details, please visit our company 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.

The areas where drones are active are rapidly expanding from surveying, infrastructure inspection, agriculture, logistics, and disaster prevention to defense and security fields in recent years. In addition to the demand for high-precision sensing in the private sector, the requirements for optical systems mounted on drones are becoming increasingly stringent in defense applications such as border surveillance, information gathering, search and rescue, and unmanned operational support. While the miniaturization and weight reduction of the aircraft are progressing, the proposition of "obtaining more precise information in harsher environments" remains unchanged. One key to solving this contradiction is optical thin film technology. Optical thin films, which control the reflection, transmission, and blocking of light at the nanometer level, are a technology that fundamentally enhances the performance of mounted sensors across the visible light, near-infrared, and thermal infrared ranges. We will introduce the role that optical thin films play in drone development from the perspectives of industry, agriculture, and defense. 1. What are optical thin films? — Basic knowledge for drone developers 2. By field: The roles played by optical thin films 3. Featured technology: 8-14μm band infrared AR coating 4. Quick reference table for utilization images by development phase 5. Proposal for co-creation — Let's start together from a prototype For more details, please refer to our company website.

In recent years, "STEAM education" has rapidly spread in educational settings, increasing the importance of experimental environments and measurement technologies for experiential learning in science and technology. Among these, spectroscopic techniques that analyze substances and environments using light have gained attention. Not only in cutting-edge research fields such as spectroscopic measurement, laser experiments, and biosensing, but also in universities, technical colleges, and high schools, there has been an increase in experiments utilizing optical technologies. The foundation of these technologies is optical thin films (optical filters) that control the wavelength of light. Optical thin films significantly improve the accuracy of spectroscopic measurements and optical sensing by allowing only specific wavelengths to pass through or by blocking unwanted light. Furthermore, they hold potential as educational materials that enable intuitive understanding of the physics of light through phenomena such as interference and structural colors. 1. Compatibility of STEAM education and optical technology 2. Optical thin films used in education and research fields 3. Custom optical thin films required for research applications 4. Potential of optical thin films as educational materials 5. Co-creation proposal: New initiatives with educational and research institutions Optical thin films are materials that connect "learning" and "technology." For more details, please refer to our company website.