Dichroic mirrors separate, combine, and block light of different wavelengths.

On November 1, 2024, I participated in the Optical Thin Film Research Meeting held at the Tokyo: Machine Industry Promotion Hall. This time, we moved from the usual basement level 2 to the 6th floor, which is a large venue with two screens, making it very easy to see and hear. The Optical Thin Film Research Meeting was established in 2011. It has two main objectives: 1) To revitalize the field of optical thin films in Japan. 2) To advance standardization efforts related to optical thin films and protect Japan's national interests. Our company has been participating since the initial launch in 2011. This is the 52nd meeting of this historically significant research group. Optical Thin Film Research Meeting (otfse.org) Please check our company website for more details.

The cutting of optical films is a task that requires precision and is an important process in optical devices and components. Optical films are used to control the transmission and reflection of light, such as in anti-reflective coatings and filters. Properly cutting this thin film and finishing it to precise shapes and sizes directly impacts the performance of optical equipment. The cutting of optical films requires careful techniques to avoid compromising their thickness and functionality. At Adachi New Industry Co., Ltd., we propose the optimal cutting methods according to our customers' requirements.

A polarizing beam splitter is an optical device that splits incoming light according to its polarization state. It is an optical element that separates incident light into S-polarized and P-polarized light, where S-polarized light refers to polarization with a vibration direction that is perpendicular to the incident plane, and P-polarized light refers to polarization with a vibration direction that is parallel to the incident plane. (Are you facing any of these challenges?) ■ Is it possible to customize the wavelength range as specified? ■ Can you accommodate a design that takes the incident angle into account? ■ Consideration of laser power is necessary. ■ Is it possible to apply an anti-reflective coating on the backside? ■ Do you handle products in a cleanroom environment? Please consider the optical thin films from Adachi New Industry Co., Ltd., which can be customized to meet your needs.