INDUSTRY COMPONENT

Optical Filter/Lens

Precision optical component for wavelength selection and light focusing in optical receivers

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Component Specifications

Definition
An optical filter/lens is a critical component in optical receivers that selectively transmits specific wavelengths while blocking others, and focuses incoming light onto photodetectors. It ensures signal integrity by filtering out noise and ambient light interference while maximizing signal strength through precise optical focusing.
Working Principle
Operates on principles of interference filtering (for filters) and refraction (for lenses). Filters use thin-film coatings to reflect unwanted wavelengths while transmitting target bands. Lenses use curved surfaces to converge or diverge light rays, focusing them onto detection surfaces with minimal aberration.
Materials
Optical glass (BK7, fused silica), crystalline materials (CaF2, ZnSe), polymer optics (PMMA, polycarbonate), with anti-reflective coatings (MgF2, SiO2)
Technical Parameters
  • Bandwidth 10-100 nm
  • Focal Length 5-100 mm
  • Surface Quality 40-20 scratch-dig
  • Wavelength Range 400-1700 nm
  • Diameter Tolerance ±0.1 mm
  • Transmission Efficiency >90%
  • Center Thickness Tolerance ±0.05 mm
Standards
ISO 10110, ISO 14997, DIN 3140, DIN 58196

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Optical Filter/Lens.

optical filter optical lens optical receiver component wavelength filter light focusing photodetector optics industrial optical components Optical Filter/Lens Optical Filter/Lens in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Optical Receiver

A component within a LiDAR sensor that detects and converts incoming optical signals (laser light reflections) into electrical signals for processing.

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Engineering Analysis

Risks & Mitigation
  • Contamination reducing transmission
  • Mechanical damage to coatings
  • Thermal expansion affecting alignment
  • Moisture absorption in polymer optics
FMEA Triads
Trigger: Improper cleaning procedures
Failure: Surface contamination reducing light transmission
Mitigation: Implement cleanroom handling protocols and use approved optical cleaning solutions
Trigger: Thermal cycling
Failure: Coating delamination or lens cracking
Mitigation: Select materials with matched thermal expansion coefficients and implement gradual temperature transitions

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05 mm dimensional, ±0.5° angular, >90% transmission at specified wavelengths
Test Method
Spectrophotometry for transmission/reflection, interferometry for surface quality, environmental testing per MIL-STD-810

Buyer Feedback

★★★★☆ 4.6 / 5.0 (8 reviews)

"The technical documentation for this Optical Filter/Lens is very thorough, especially regarding technical reliability."

"Reliable performance in harsh Computer, Electronic and Optical Product Manufacturing environments. No issues with the Optical Filter/Lens so far."

"Testing the Optical Filter/Lens now; the technical reliability results are within 1% of the laboratory datasheet."

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Frequently Asked Questions

What is the difference between bandpass and longpass optical filters?

Bandpass filters transmit a specific wavelength range while blocking others on both sides, ideal for isolating narrow spectral bands. Longpass filters transmit wavelengths longer than a cutoff point while blocking shorter wavelengths, used for separating signal from background noise.

How does lens focal length affect optical receiver performance?

Focal length determines the convergence point of incoming light. Shorter focal lengths provide higher light concentration but narrower field of view, while longer focal lengths offer wider coverage with lower intensity. Proper selection balances signal strength and detection area.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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