What is the lead time for delivery?

During peak season, lead time is one month; off-season lead time is within 15 workdays.

What certifications do your products have?

Our products are certified with RoHS, REACH, and ISO9001.

What is the blocking depth of the filters?

The blocking depth can reach OD2 to OD6 depending on the specific filter type.

Optical Filtersbandpass Filter Narrowband Interference Filter 440nm Bandpass Filter Glass

Name: Optical Filtersbandpass Filter Narrowband Interference Filter 440nm Bandpass Filter Glass
Brand: Optolong Optics Co .,Ltd
SKU: 2112144405

Yunnan, ChinaOptolong Optics Co .,Ltd

US$15.00

10-49 Pieces

US$12.00

50-99 Pieces

US$8.00

100-499 Pieces

US$3.00

500+ Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Easy Return

Warranty

5years

Model NO.

440nm Narrow Bandpass Filter FWHM20nm

Usage

Optical

Thickness Range

0.5mm-1mm

Color

Red

Type

Thin Film Filter

Principle

Cut-off Filter

Material

Glass

Angle of incidence

45°

Shape

Customized

Certification

RoHS, ISO

Customized

Transport Package

Plastic Case, Carton

Specification

5x55mm

Trademark

Optolong

Origin

China

HS Code

9001909090

Production Capacity

100000piece/Month

Key features

Customized Shape: Shape can be customized to meet specific application requirements.

Wide Customization Options: Supports customization from samples and designs, including size, thickness, and material.

High Transmittance: Transmittance exceeds 95% for standard optical filters.

Strong Blocking Depth: Blocking depth reaches OD2 to OD6 for effective light filtering.

RoHS and ISO Certified: All products comply with RoHS, REACH, and ISO9001 standards.

20 Years Experience: Over two decades of expertise in optical coating and filter manufacturing.

Comprehensive Warranty: Provides a 5-year warranty covering mechanical defects.

OEM and ODM Services: Full OEM and ODM services available for central wavelength and FWHM customization.

Company profile

Importers and ExportersYears of Export ExperiencePatents AwardedExhibition Experience

Optolong Optics Co .,Ltd

Yunnan, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 20 Years CertifiedNearest Port: Guangzhou PortAverage Response Time: ≤11.70h

AI-Powered supplier vetting

SummaryThe supplier manufactures and supplies optical coating filters and operates three production lines, with stated annual output of 5,000 L-Pro sets and seven quality assurance or quality control inspectors. It provides customization from samples, designs, and minor customization, as well as ODM and OEM services. Its service system includes written procedures and records for supplier assessment, corrective and preventive actions, and customer complaints. The supplier exports to multiple regions and reports peak-season lead time of one month and off-season lead time within 15 workdays. However, it does not provide 3D software design services, has had no new products in the past year, has one R&D engineer, lacks available SDKs, and has no R&D audit documentation available. No certification information or specific customer cases are provided. Overseas service infrastructure is limited: there is no overseas warehouse or showroom, although overseas agents or branches and offline trade-show participation are reported.

Supplier typeThe supplier is a manufacturer and seller associated with optical and equipment-related activities, with optical coating filters identified as its offered product. It operates three production lines and reports production of L-Pro products, indicating a manufacturing-oriented supplier rather than only a trading intermediary.

After-Sales capabilityThe supplier has written procedures and followed records for handling customer complaints, as well as corrective and preventive actions. It also reports overseas agents or branches and participation in Analytica China, but has no overseas warehouse or showroom and lists zero countries where overseas services are offered; the evidence supports formal complaint handling but not broad overseas service coverage.

R&D capabilityThe supplier offers ODM and has one R&D engineer whose stated responsibility is reviewing customer order requirements, but it does not provide 3D software design services, reported no new products in the past year, has no available SDK, and lacks R&D design input, output, review, verification, and validation documents for audit. These explicit limitations indicate weak demonstrated innovation capability.

Production capacityThe supplier operates three production lines, reports annual output of 5,000 L-Pro sets, and has seven quality assurance or quality control inspectors. It also lists production and processing equipment and states off-season lead time within 15 workdays and peak-season lead time of one month, providing explicit evidence of established production capacity.

Customization capabilityThe supplier explicitly provides customization from samples, customization from designs, and minor customization. It also reports ODM and OEM capability, although the absence of 3D software design services limits the scope of design-support capability.