780nm Longpass Optical Filter Customized Optical IR Filter With Gold Coating
Price:
$1
MOQ:
1000
Delivery Time:
Negotiable
Brand:
Non
Product Description
Customized 780nm LongPass IR Filter Glass Plates with Gold Coating and High Borosilicate Substrate for Infrared Equipment
Product Overview
Our longpass filters feature advanced coating technology on high-quality glass substrates. These filters utilize reflection from metal coat layers or dielectric coat layers on glass surfaces, providing undistorted reflection without heavy color distortion. Manufactured from premium JGS2 quartz glass and high borosilicate glass, they maintain optimal performance in high-temperature environments.
Coating Technologies
Protected Gold Mirrors:
- Gold-coated Outer Mirrors: Feature silicon dioxide protective coating over gold surface, preventing scratches and moisture damage. Reflectivity exceeds 96% in 0.75μm - 20μm band
- Gold-coated Inner Mirrors: Protected by chrome-coated gold surface, suitable for environments with lower spot requirements. Reflectivity exceeds 96% in 0.75μm - 20μm band
Dielectric Mirror:
Dielectric mirrors achieve exceptional reflectivity in specific bands, reaching over 99%. Available in single-point high reflection (470nm, 532nm, 650nm, 808nm, 1064nm) and broadband high reflection ranges (400-700nm, 650-1200nm).

Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Long Pass Filter |
| Customized Support | OEM, ODM |
| Place of Origin | China |
| Model Number | LF |
| Coating | Gold coating, aluminum coating plus dielectric coating, dielectric coating |
| Average Reflectance | 450nm, 532nm, 650nm, 780nm R>97% |
| Band Reflectivity | 450nm, 532nm, 650nm, 780nm R>97% |
| Substrate | JGS 2, high borosilicate glass |
| Surface Parallelism | λ/10 |
| Clear Aperture | >95% |
| Surface Quality | 40/20 (S/D) |
| Environmental Testing | MIL-STD-810F |

Spectral Performance

Product Gallery

Manufacturing Process

About U-Safe Technology
U-safe Technology Co., Limited is a legally registered B2B trading company in Hong Kong, serving as a business bridge between Chinese manufacturers and international importers. Our office in Shenzhen's IC Park ensures close coordination with production facilities, helping clients source correct products and solutions safely, efficiently, and reliably.
Contact Us
Welcome Inquiry! Any questions? Contact our sales team for prompt response within 24 hours.
Our Services Include:
- R&D / OEM Support
- Production Process Follow-up
- Custom Packaging Solutions
- Pre-delivery Inspection
- Comprehensive Shipping Options: EXW, FOB, FCA, CNF, CIF, Door-to-Door by sea, air, express, or post
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
U-Safe Technology Co., Limited
Location
F4, Bldg 2, Al Park, Baolong Road 4, Longgang District, Shenzhen, China
Contact Person
Shirley Xie