Infrared Optical Filters

High-Performance Infrared Optical Filters

Precision bandpass and cutoff filters for infrared sensing, scientific instruments, industrial inspection, laser systems, and advanced optical systems.

30+Years Expertise
1000 nm-20 umSpectral Coverage
2 WeeksFast Delivery
Products

Infrared filters built for demanding optical systems.

Our product portfolio covers near-infrared, mid-wave infrared, and long-wave infrared applications, with flexible customization for wavelength, bandwidth, substrate, blocking depth, and package dimensions.

BP3400/120K Filter

CWL
3420 nm
HW
132 nm
Cuton 5%
3290 nm
Cutoff 5%
3545 nm
Tpeak
91.06%
Tavg
84.53%
Blocking
< 0.13% (1100-11000 nm)
Substrate
Silicon

BP4265/110K Filter

CWL
4265 nm
HW
112 nm
Cuton 5%
4163 nm
Cutoff 5%
4371 nm
Tpeak
91.36%
Tavg
86.21%
Blocking
< 0.1% (1100-11000 nm)
Substrate
Silicon

BP10.5/300K Filter

CWL
10544 nm
HW
278 nm
Cuton 5%
10294 nm
Cutoff 5%
10813 nm
Tpeak
83.97%
Tavg
79.52%
Blocking
< 0.1% (1100-15000 nm)
Substrate
Germanium
Core Technology

Independent coating capability from equipment to process control.

Self-developed automatic coating equipment.
Precision optical film thickness control system.
Ion-Assisted Deposition (IAD) for adhesion and durability.
Broad coverage from near-infrared to long-wave infrared.
Automatic infrared optical coating equipment
Quality Assurance

Stable, traceable, and verified manufacturing.

Quality is built into design and manufacturing, with process control from raw materials through production and final inspection.

Controlled Environment

Class 10,000 cleanroom production and Class 100 workstation capability.

Precise Testing

Spectral measurement capability for optical filter verification.

Reliability Validation

Environmental testing for stability under demanding operating conditions.

About Us

A precision optics team in China’s Capital of Optics.

Jiangxi Sixty Nine Optoelectronics Technology Co., Ltd. specializes in the research, development, and manufacturing of high-performance infrared optical filters.

Located in Shangrao, Jiangxi Province, the company leverages more than 30 years of industry experience from its founding team to deliver advanced infrared optical solutions to customers worldwide.

Jiangxi Sixty Nine Optoelectronics factory building

Contact Us

Send Message

    Work with us on your challenging task

    Whether you need a standard infrared filter or a customized optical solution, our team can support your wavelength, bandwidth, substrate, size, blocking, and reliability requirements.

    Take the first step by contacting us, and we will help you evaluate the right filter solution for your application.

    Jiangxi Sixty Nine Optoelectronics Technology Co., Ltd.

    Room 101, No. 5 Songjiang Zhiguang, Chuanggu 1st Road, Shangrao Economic and Technological Development Zone, Jiangxi Province, China

    Email: sixty_nineirf@163.com
    Hotline: +86 180 210 261 98