Optical-Filter, Band Pass Filter, UV Filter, Mirror Glass, Optical Lens, Sapphire

Product Description

C-laser High-Precision Interference Filter - Vacuum-Coated Optical Core Component

C-laser's interference filter is a cutting-edge light control solution engineered for high-end optical equipment, delivering unparalleled precision in spectral manipulation. Crafted with optical-grade glass substrates and advanced vacuum coating technology, this component features a multi-layer film stacking structure that leverages light interference principles to achieve precise spectral screening. It efficiently transmits target wavelengths while completely blocking stray light, ensuring optimal optical performance for demanding

Product Description

Core Manufacturing Advantage: Vacuum Coating Technology

At the heart of our interference filter lies C-laser's proprietary vacuum coating process, designed to meet the highest industry standards:
Superior Film Stability: The entire coating process is performed in a high-vacuum environment, eliminating oxidation and impurity contamination. With industry-leading film adhesion, the filter resists peeling, fading, and degradation even during long-term, rigorous use.
Micron-Level Thickness Control: Equipped with computerized temperature regulation and coating rate monitoring, each optical film layer achieves a thickness error of ≤0.01μm. This precision guarantees consistent and accurate spectral filtering performance.
Exceptional Uniformity: Our rotating substrate design ensures film uniformity >95%, effectively preventing local light transmission variations caused by uneven coating. This ensures reliable, consistent performance across the entire filter surface.

Specification

Technical Indicator	Parameter Specification	Indicator Description
Substrate Material	Optical Grade Glass	High light transmittance (≥92%@visible light region), low impurity, ensuring no additional light attenuation
Dimensional Tolerance	+0.0/-0.2mm	High-precision size control, suitable for automated equipment assembly, reducing assembly gaps
Surface Finish	60-40	Strict control of surface scratches and pits, stray light suppression rate >98%, improving optical imaging quality
Clear Aperture	>90%	High proportion of effective light-transmitting area, avoiding reduced light utilization caused by edge blocking
Flatness	λ/4 @632.8nm	Based on 632.8nm He-Ne laser, flatness error ≤0.25λ, ensuring precise light propagation path
Parallelism	<1 arc min (Angular Minute)	Minimal parallelism error between the two light-transmitting surfaces, reducing optical axis deviation, suitable for high-precision optical systems

Wide Application Fields

Biomedical: Microscope imaging, fluorescence detection, spectral screening for biochemical analyzers;
Industrial Inspection: Machine vision color recognition, thin film thickness measurement, metal surface defect detection;
Optical Communication: Optical fiber signal filtering, wavelength division multiplexing (WDM) systems;
Security Monitoring: Narrow-band filtering for infrared thermal imagers and night-vision equipment;
Scientific Research: Precise light control for spectrometers, laser systems, and astronomical observation equipment.

Two Core Product Categories (Selection Based on Needs)

1. Cut-Off Filter
Core Function: Divides the spectrum into a "complete cut-off region" and an "efficient passband region", realizing complete blocking or transmission of specific wavelength ranges;
Subtypes:
Short-Wave Pass Filter: Only allows short-wave light (e.g., ultraviolet, blue light) to pass through, blocking long-wave light (e.g., red light, infrared);
Long-Wave Pass Filter: Only allows long-wave light (e.g., infrared, red light) to pass through, blocking short-wave light (e.g., ultraviolet, blue light);
Structural Advantages: Adopts a periodic structure of alternating "high-refractive-index film layers + low-refractive-index film layers", with cut-off depth >OD6 (Optical Density) and passband transmittance >90%, ensuring strong environmental stability (no performance fluctuation at -40ºC~85ºC).

2.Band-Pass Filter

Core Function: Only allows light in an extremely narrow wavelength range to pass through (passband bandwidth can be as low as 10nm or less), serving as a core component for high-precision spectral analysis;
Unique Structure:
Glass Substrate → Translucent Metal Layer → Magnesium Fluoride (MgF2) Interlayer → Translucent Metal Layer (forming a Fabry-Perot Etalon);
Performance Advantages:
The thickness of the magnesium fluoride interlayer is of the same order of magnitude as the target wavelength, increasing the separation degree of interference peaks of different wavelengths by 300% and achieving more thorough stray light suppression;
When used with a dedicated absorption filter, its passband bandwidth is 80% narrower than that of ordinary absorption filters, making it suitable for high-resolution spectral detection scenarios.

Customization Services & Cooperation Advantages

Flexible Customization: Supports customization of size (5mm×5mm~200mm×200mm), target wavelength (ultraviolet/visible/infrared region), and film structure (anti-reflection film + cut-off film composite design);
Direct Factory Supply: No middlemen markup, spot inventory for regular models (delivery within 72 hours), 15-20 days lead time for customized models;
Technical Support: Provides pre-sales spectral selection consultation and after-sales installation guidance, free sample testing available (freight to be negotiated).

Why Choose C-laser?

Professional optical component manufacturer with advanced vacuum coating facilities
Rigorous quality control system to ensure each product meets international standards
Customizable solutions for specific wavelength, size, and performance requirements
Timely delivery and responsive technical support for global B2B partners
Contact us today to discuss your optical component needs—C-laser is committed to providing reliable, high-performance solutions that drive your project success!