Added the 'Ultraviolet Bandpass Filter, Substrate: Hisashi Seiko Glass Co., IHU150' to the artisan coating.

A bandpass filter that achieves sharp rise and high transmittance in the visible light range (660nm). It is ideal for red laser diodes and LED applications.

Are you having trouble with something like this? - Is it possible to only allow a specific wavelength (633nm) to pass through? - I would like to expand the stop band because light other than the desired wavelength becomes noise. - Can you take into account the range of incident angles? - The shape is special; can it be shipped as a component? Optical bandpass filters are used in various optical applications and are essential for selectively extracting light of specific wavelengths. Passband: An optical bandpass filter allows a specific range of wavelengths to pass through. This range of wavelengths is called the passband and is typically defined by the center wavelength and the wavelength bandwidth. Wavelength selectivity: Optical bandpass filters can have very high wavelength selectivity, emphasizing light of specific wavelengths. This is important in many fields where precise wavelength selectivity is required. A 660nm bandpass filter, which selectively allows light in the specific wavelength range of 660nm to pass through, is commonly used in optical applications. This bandpass filter amplifies or allows light within the wavelength range around 660nm while blocking light of other wavelengths.

• Distance measuring device
• Image Processing Equipment
• Sensors

It is an optical filter that cuts ultraviolet and infrared light while having a high transmittance in the visible light range.

A UV-IR cut filter is a filter that cuts light in the ultraviolet and infrared regions while having a high transmission rate in the visible light region. In other words, it is an optical filter that simultaneously realizes the characteristics of both a UV cut filter and an IR cut filter. By placing it in front of CMOS sensors or CCD sensors, it serves multiple roles such as cutting noise light, providing heat protection against various light sources, and preventing degradation of liquid crystal components due to ultraviolet light. It is an excellent optical filter and optical thin film with multiple functions. Are you facing any of these issues? - Is it possible to cut both ultraviolet and near-infrared light? - Can a filter be made that allows visible light to pass while blocking IR and UV wavelengths? - I want to reduce noise light and increase sensor sensitivity. Can I consult about this? - Is it possible to customize the wavelength range that I want to transmit? - Is processing to chip size possible?

• Other optical parts
• Surveillance Cameras
• Sensors

It achieves excellent ultraviolet transmission rates and can be adapted to the light sources you plan to use (such as high-pressure mercury lamps, various laser lights, UV LEDs, etc.).

Are you facing any of these issues? - I want to reduce reflection in the ultraviolet (UV-A) range. - I want to increase the transmittance at wavelengths that react with initiators, such as 365nm and 405nm. - I've heard that the UV range has a thin film thickness and is difficult to control... - I've heard that the substrates and film materials are limited; can you accommodate that? - I've heard that the measurement difficulty after film formation is high; can you handle that? ◆ We achieve excellent ultraviolet transmittance! By depositing multilayer dielectric films, we prevent light reflection from both sides of the substrate. Based on our achievements in visible light, we can also achieve high transmittance in the ultraviolet wavelength range by controlling the film formation process. However, the substrates that can be used for film formation are limited, so prior confirmation is necessary. By utilizing the characteristics of the substrates you will use and designing accordingly, we will realize the optimal filter.

• LED Module
• Ultraviolet irradiation equipment
• Sensors

It is a filter that efficiently cuts (reflects) short-wavelength UV (ultraviolet) light while allowing visible light to pass through.

What is a UV cut filter (ultraviolet cut filter)? It is a filter that cuts ultraviolet (UV) light while allowing visible light to pass through. In digital cameras, it is used to reduce chromatic aberration, and in liquid crystal projectors, it is used to prevent the degradation of liquid crystals and other optical components caused by the light from lamps (such as high-pressure mercury lamps), with the aim of cutting unnecessary ultraviolet light. Are you facing any of these issues? ◆ Is it possible to cut only the wavelength of ultraviolet light? ◆ Can a UV cut filter for projectors be coated? ◆ I would like to consult about the degradation of optical components. ◆ I would like to consult about filters that minimize the impact on the human body. ◆ Is it possible to custom adjust the wavelength range that I want to transmit?

• Other optical parts
• Lighting for image processing
• Sensors

As the new year begins, I would like to extend my heartfelt congratulations on your continued prosperity. I sincerely appreciate your exceptional support throughout the year. This is the STJ Group (Santelecom Japan, STJ Rentec). Now, I am pleased to announce that we will be opening our "Transceiver & Smartphone Rental Shop" simultaneously at three locations nationwide on January 26 (Monday)! ■ List of Services to be Offered - Same-day pickup/return of rental equipment - Usage explanations and demonstrations of rental equipment - Wireless solutions consultation desk - Mobile BPO service counter As a special promotion to celebrate the opening of the rental shop, we are currently running a special price campaign for picking up rental equipment at the shop! For more details, please contact us!

【Notice of Year-End and New Year Holidays】 Thank you very much for your continued support. Our company will be closed for the year-end and New Year holidays as follows: Holiday Period: Saturday, December 27, 2025 – Sunday, January 4, 2026 Please note that inquiries and orders received during the holiday period will be addressed sequentially starting from Monday, January 5, 2026. We apologize for any inconvenience this may cause and appreciate your understanding.

We would like to inform you about our participation in the IT Trend EXPO 2026 Spring. 《Exhibition Information》 With the concept of "New encounters will change tomorrow's work," one of the largest online exhibitions in the industry will be held. NTT TechnoCross will exhibit in the Human Resources Comprehensive category. We have prepared numerous discussions and sessions featuring special guests who are active on television, allowing even those who are usually busy to efficiently gather information on products and services related to IT and DX. Additionally, the first 10,000 participants will receive a 500 yen Amazon gift card. Please apply early. 《Exhibition Overview》 March 3 (Tuesday) to March 7 (Saturday), 2026, online (free: pre-registration required) 《Participation Application》 https://it.expo.it-trend.jp/key/opl7kgdj *Please apply (free) from the "Receive Ticket / Proceed to Participation Registration" link at the above URL.

The TV commercial "What Will You Do in the New Era?" featuring model and actress Akane Horita will begin airing on December 26, 2025. This work expresses the desire of Tokei Densan to respond to the diverse needs of various industries in today's society, where new technologies, such as the expansion of the AI market, are competing with each other, and to nurture and blossom our customers' futures. Please pay attention to Akane Horita, who is dressed in stylish outfits, listening to the concerns of the target audience and offering support. # CM Overview Title: "What Will You Do in the New Era?" (30 seconds / 15 seconds) CM URLs 30 seconds: https://youtu.be/y_lMs0HRj3w 15 seconds: https://youtu.be/egpzMfh8Kok

Thank you very much for your continued support. We would like to inform you that our company will be closed for the year-end and New Year holidays as follows: Year-end and New Year holiday period: December 27, 2025 (Saturday) to January 4, 2026 (Sunday) We apologize for any inconvenience this may cause and appreciate your understanding. *Please note that inquiries made through our website will also be responded to after January 5, 2026 (Monday).