Customizable Dichroic Filter Sets for Multipurpose Fluorescence Imaging – Optical Bandpass & Longpass Filters for Precision Light Management

• Customization: Available
• Warranty: 1 Year
• Usage: Optical
• Color: Colourful
• Type: Color Filter
• Material: Glass
• Angle of incidence: 45°
• Shape: Round
• Certification: RoHS, ISO, CE
• Customized: Customized
• Central Wavelength: 245 - 1064 Nm
• Half Bandwidth: 5 Nm 10nm; 20nm; 30nm; 50nm or Custom
• Cut-off Range: 200 - 1200nm
• Optical Density: Od3; Od4; Od5; Od6
• Transport Package: Foam Carton Inner, Then Cartons to Pack Them
• Specification: Customized
• Trademark: FS
• Origin: Tianjin
• Production Capacity: 2000 Pieces/Month

Product Description

Product Description

A dichroic filter is a precision optical component designed based on the principle of light interference, distinguished by its ability to selectively transmit one wavelength range and reflect another, enabling wavelength separation or combination. It is typically fabricated by depositing multilayer dielectric films (e.g., metal-dielectric or all-dielectric coatings) on an optical glass or quartz substrate, achieving interference effects at specific angles of incidence through precise design of film thickness and refractive index. Its core performance is determined by the cutoff wavelength, bandwidth, and spectral reflectance/transmittance: the cutoff wavelength defines the boundary between transmission and reflection, the bandwidth reflects the sharpness of wavelength selection (narrower bandwidth means higher color separation accuracy), and the reflectance/transmittance directly affects light signal separation efficiency. Unlike ordinary band-pass filters, dichroic filters are more sensitive to the angle of incidence and polarization state, requiring strict control of optical path angles in applications. They can be designed as short-pass or long-pass dichroics, widely used in fluorescence microscopy, projection systems, stage lighting, laser beam combining/splitting, biomedical detection, and other fields.

Specification

Product Name	Dichroic Filter
Diameter	Custom Made
Thickness	±0.02mm
Dimension Tolerance	±0.02mm
Surface Quality	60/40, 40/20 ,20/10 or better
Substrate	Colored Glass
Coating	Custom
Type	Andpass Filter

Optical Applications‌

Uses light interference to selectively transmit one wavelength range and reflect another, enabling wavelength separation or combination.

Typically composed of optical glass or quartz substrate with multilayer dielectric coatings (e.g., metal-dielectric or all-dielectric films).

Interference-type: Achieves wavelength selectivity through multilayer thin-film interference (nearly all dichroic filters are interference-based).

Company Profile

Tianjin Fushi Optics Co., Ltd.

Tianjin Fushi Optics Co., Ltd. is a comprehensive optoelectronic enterprise integrating R&D, production, sales, and after-sales service. Since its establishment in 2012, the company has been dedicated to technological innovation and industrial application in the field of optical components, with its manufacturing base located in China's core optical industry zone. The product portfolio covers a full range of optical basic components, including lenses, prisms, mirrors, optical windows, and filters, with particular technical expertise in the design and manufacturing of diffraction gratings.  

In 2017, Fushi Optics established a professional optical laboratory in Dongli District, Tianjin, committed to integrating optical theoretical research with engineering practice. After years of technical accumulation, the laboratory has gained wide academic recognition for its research achievements in spectral analysis, precision optical processing, and other fields, forming an integrated "industry-academia-research-application" technological innovation system. It continues to provide high-performance optical solutions for the optoelectronic industry.

FAQ

Q: How can I get samples from you?

Just send us your requirements, and we will send samples accordingly. 

 

Q: How long is your delivery time? · 

Regarding inventory, it is 3 working days;

For customized one, it's about 15-25 working days, depending on exact quantity and order date. 

 

Q: Can I customize the products based on my requirements?

Yes, we can customize the material, specifications and optical coating for your optical components as per your requirements.

Q: Are you a factory? 

Yes, we are a professional manufacturer of optical components. We have more than 20 years of experience in optical cold working.

 

Q: How do you control the quality?

More than four times of quality inspection during the production process; we can provide the Quality Test Report.

Packing & Delivery

We attach great importance to every detail in production and communication. Should you have any questions, suggestions, or comments, please do not hesitate to share them with us. Your feedback is invaluable in our pursuit to become a worthy, trusted, and reliable supplier. Thank you for your visit.