I participated in the 52nd Optical Thin Film Research Conference.

Craftsman's Point: Achieving optical properties with a periodically varying refractive index. Applications: Expected applications in notable fields such as Raman spectroscopy.

We will achieve optical characteristics that have not been realized until now by periodically changing the refractive index. Conventional optical filters (optical thin films) consist of alternating layers of high refractive index films and low refractive index films, which exhibit specific optical properties. In contrast, notch filters (band-stop filters) are deposition products designed to periodically change the refractive index in the thickness direction. They are characterized by the absence of optical ripples outside the stopband. We can realize optical characteristics that have not been achievable with conventional optical thin film processing. (Do you have such challenges?) ■ Is it possible to reflect only around the wavelength of 532nm? ■ I would like the unnecessary parts to be unable to transmit optically. ■ Notch filter? Band-stop filter? Rugate filter? ■ I have heard that the measurement difficulty after deposition is high; can you accommodate this?

• Security cameras and surveillance systems
• Halogen bulbs
• Automated guided vehicles (AGV, RGV)

It is an optical filter that selectively transmits ultraviolet wavelengths (255 nm) while blocking light of other wavelengths (using a substrate from Hisashi Seiko Glass).

Applications in the ultraviolet region are on the rise. At Isuzu Seiko Glass Co., we have developed filter glass substrates (IHU series) that have a transmission limit wavelength in the ultraviolet range and improved weather resistance to ultraviolet light. Recently, we have successfully deposited dielectric multilayer films to create bandpass filters in the ultraviolet range, as shown in the chart (measured data). (Are you facing these challenges?) ■ I want to selectively transmit specific wavelengths using aspherical lenses or lens arrays. ■ Is it possible to achieve pinpoint transmission at the UV-C wavelength of 254 nm? ■ Is it possible to achieve anti-reflection with limited substrates and deposition materials? ■ I've heard that measurement difficulty after deposition is high; can you handle that? ■ Is it true that controlling the thickness in the UV region is very difficult due to its thin film? Based on our achievements in visible light, we can achieve high transmission rates in the ultraviolet wavelength range by controlling the deposition process. Additionally, by leveraging our ability to mold aspherical lenses and lens arrays in combination with our deposition technology, we can propose new applications.

• Security cameras and surveillance systems
• Halogen bulbs
• Automated guided vehicles (AGV, RGV)

It is an optical filter that selectively transmits light below a specific wavelength and blocks light of longer wavelengths.

A short-pass filter selectively transmits light below a specific wavelength (800nm) and blocks light of longer wavelengths. This allows for effective handling of light in a specific wavelength range. (Do you have any of the following concerns?) ■ Is it possible to customize due to high wavelength dependence? ■ Does performance decrease when light is incident at an angle, and can it be controlled? ■ There may be a decrease in transmittance when blocking specific wavelengths. ■ Can it cause chromatic aberration? ■ Is it difficult to control multiple wavelengths simultaneously?

• Security cameras and surveillance systems
• Halogen bulbs
• Automated guided vehicles (AGV, RGV)

It is a mirror that reflects light of a specific wavelength and transmits light of other wavelengths.

【1】Are you facing any of these issues? ◆ Is it possible to maintain a uniform reflectance for multiple wavelengths? ◆ Is it possible to address the decrease in reflectance at specific wavelengths? ◆ Is color reproducibility achievable? ◆ Is there no problem with the stability of optical performance due to temperature changes or variations in environmental conditions? ◆ Is it possible to ship the parts even if the shape is special? 【2】What is a dichroic mirror? A dichroic mirror is a mirror that reflects light of specific wavelengths while allowing other wavelengths to pass through. It consists of multiple layers, each with different optical properties. This characteristic allows for the effective separation, combination, or blocking of light at different wavelengths. 【3】Features of dichroic mirrors - Spectral separation Dichroic mirrors are used for spectral separation by selecting and reflecting or transmitting light of specific wavelengths from incident light. For example, they are used in optical devices that extract and detect light of specific wavelengths. - Light filtering They are used as filters to selectively remove light of specific wavelengths. This allows for the removal of unwanted light, permitting only the desired wavelengths of light to pass through.

• Security Sensor Systems
• Security cameras and surveillance systems

ND stands for "Neutral Density," which is a filter used to adjust the light transmission rate.

【1】Are you facing any of these issues? ◆ I want to address concerns about flares and ghosts. ◆ Is it possible to adjust the transmission rate with custom settings? ◆ I am looking for a filter for adjusting laser equipment. ◆ The shape is special; can it be shipped as a part? 【2】What is an ND filter? ND stands for "Neutral Density," which is a filter used to adjust the transmission rate of light. It is used to reduce the amount of light entering through the lens. It is an essential optical component for controlling shutter speed and aperture in bright environments when taking photographs with cameras, in order to achieve the appropriate exposure. 【3】Design and customization available for your desired wavelength range At Adachi New Industry, we can design and coat (film) according to your desired wavelength range. The characteristic chart at the beginning shows a transmission rate of 50%, but we can accommodate other transmission rates as well. Please feel free to contact us. Additionally, we will design according to the characteristics of the substrate and your requirements, so please let us know your desired substrate type and wavelength range when you inquire.

• Security Sensor Systems
• Security cameras and surveillance systems

We will be exhibiting at the "22nd Japan Fiber Material Research Seminar" to be held on May 22, 2026 (Friday). We plan to showcase dust protection clothing and other items. We look forward to your visit! ● Date: May 22, 2026 (Friday) 11:00 AM - 4:00 PM ● Venue: BDK Conference Room, 7th Floor, Buddhist Propagation Center Building, (Public Interest Incorporated Foundation) (Tokyo) 'Mi no Ma' For more details, please feel free to contact us through the related link below: [Protective Clothing Wisdom.com]. [Protective Clothing Wisdom.com] is a comprehensive information site for safe working environments, providing information on protective clothing and equipment by work environment, methods for putting on and taking off, and customer usage records.

We will be exhibiting at the "2026 Spring Conference of the Japan Foundry Engineering Society [187th National Conference] - Connecting Exhibition," which will be held from May 23 (Saturday) to May 24 (Sunday), 2026. We plan to showcase flame-resistant protective clothing and more. We look forward to your visit! ● Date: May 23 (Saturday) - May 24 (Sunday), 2026 ● Venue: Light Cube Utsunomiya (Tochigi Prefecture), 1st Floor, East Side of the Main Hall For more details, please feel free to contact us through the related link below: [Protective Clothing Wisdom.com]. [Protective Clothing Wisdom.com] is a comprehensive information site for safe working environments, providing guidance on protective clothing and equipment for different work environments, methods for putting on and taking off, and information on customer usage records.

We have launched a new “Audience Control Feature” for TwooCa Mall, enabling merchants to limit product visibility and sales to specific companies, organizations, and communities. With this feature, merchants can now: ✔ Offer employee-exclusive discounts and company sales ✔ Create fan club or community-only merchandise sales ✔ Customize product visibility for specific user groups In addition, by integrating with TwooCa’s payment functions and digital-money-convertible point system, the platform provides a seamless purchasing experience for users. This feature is designed to support value creation in closed communities such as: ・Employee welfare programs ・Fan clubs ・Membership communities ・Sports teams We will continue expanding TwooCa Mall as a platform optimized for employee engagement, member experiences, and community-based commerce. ▼ Press Release https://prtimes.jp/main/html/rd/p/000000108.000076589.html #TwooCa #EmployeeBenefits #Fintech #Cashless #HRTech #CommunityCommerce #SportsBusiness #FanEngagement #DX

Kawasaki Corporation (Headquarters: Tokyo) is pleased to announce that we will be presenting at the interim report meeting for the Tokyo Metropolitan Government's "Decarbonization Support Project in the Supply Chain for the Creation of a Green Product Market," which will be held on May 20, 2026. At this report meeting, we will present the CO2 reduction effects of our environmentally friendly plastic formwork "Daiko Panel," which we have conceived, developed, manufactured, and sold, along with our efforts toward greening, including related auxiliary materials. [Overview of the Presentation] Theme: Utilizing CFP to enhance CO2 reduction of "Daiko Panel" and promote greening across the entire supply chain. Main Content: Introducing our initiatives for CO2 reduction based on the background of our application for this project and the CFP calculation results for "Daiko Panel" and its auxiliary materials. [Presentation Date and Time] Date and Time of the Interim Report Meeting: May 20, 2026 (Wednesday) from 15:00 to 17:00 Details of the Interim Report Meeting and the Tokyo Metropolitan Government's project: Decarbonization Support in the Supply Chain for the Creation of a Green Product Market https://www.cfp-sc.metro.tokyo.lg.jp/

We will be exhibiting at the "8th International Construction and Surveying Exhibition (CSPI2026)." Dates: June 17 (Wednesday) to June 20 (Saturday), 10:00 AM to 5:00 PM *On the final day, June 20 (Saturday), until 4:00 PM only. Venue: Makuhari Messe We look forward to your visit.