Notch filter (band-stop filter, rugate filter)

In recent years, technological innovations in the agricultural sector have significantly shifted from traditional biological approaches such as soil improvement and breeding to an engineering concept of "designing the environment itself." Particularly noteworthy is smart agriculture, which integrates precise control of light environments with sensing technology. Plant growth is complexly determined not only by light intensity but also by wavelength distribution, angle of incidence, temporal variations, and interactions with surrounding temperatures. In other words, agriculture can essentially be described as "the science of spectral control." In this context, optical thin films and optical filters play an extremely important role. Optical thin films are functional materials that allow for precise design of reflectivity, transmittance, absorbance, and interference characteristics through control of film thickness on the nanometer scale. By using multilayer interference structures, it is possible to selectively transmit and reflect specific wavelengths, which directly contributes to optimizing effective light for photosynthesis in plants and controlling unwanted infrared and ultraviolet light. For more information, please check our company website.

In the medical and healthcare fields, light has already become an indispensable infrastructure. From endoscopes, fluorescence observation devices, blood analyzers, pulse oximeters, and wearable vital sensors to regenerative medicine and phototherapy devices, optical control technologies such as "wavelength selection," "reflection control," "stray light suppression," and "high-sensitivity detection" are required in every scenario. However, in actual design settings, it cannot be said that there are many cases where equipment manufacturers and optical thin film manufacturers engage in sufficient discussions from the early stages. As a result, filters and mirrors are often "added later" in the optical system's post-processing, leaving room for improvements in S/N ratio, miniaturization, and low power consumption that should have originally been achieved. We will redefine the role of optical thin films in the medical and healthcare fields and explore the possibilities from the perspective of "functional co-creation" rather than just "material supply." 1. The essence of wavelength design in biosensing 2. How reflection and absorption control change the image quality of endoscopes and observation systems 3. Wearable medical devices and angle-dependent design 4. High-durability thin films in phototherapy and sterilization fields The option of co-creation - a proposal from Adachi New Industry Co., Ltd. For more details, please check our company website.

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.

In recent years, with the miniaturization and enhancement of optical devices, there has been a growing demand for the deposition of dielectric multilayers on thin glass substrates and film substrates. However, challenges arise when the film stress generated during deposition causes the substrate to warp or the film to curl. Such deformations significantly impact product performance and processing accuracy, necessitating solutions. 【1】Challenges and causes of warping and curling due to film stress 【2】Innovations in deposition fixtures to suppress warping and their benefits 【3】The importance of controlling film stress through optimization of deposition conditions and case studies 【4】Support for cutting processes on thin substrates - Scribe & Dicing Summary For more details, please visit our company website.