Structured Manufacturing Data (2026)

Optical Sensor Module

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Optical Sensor Module used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Optical Sensor Module is characterized by the integration of Light Emitting Diode (LED) and Photodetector. In industrial production environments, manufacturers listed on CNFX commonly emphasize Semiconductor (for photodetectors) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A modular optical sensing component that detects and measures physiological signals through light-based interaction with biological tissues.

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Product Specifications

Technical details and manufacturing context for Optical Sensor Module

Definition
As part of a Physiological Sensor Array, this optical sensor module is specifically designed to capture physiological data by emitting light at specific wavelengths and measuring the reflected, transmitted, or scattered light from biological tissues. It typically integrates light sources (LEDs or lasers), photodetectors, optical filters, and signal conditioning circuitry to enable non-invasive monitoring of parameters such as blood oxygen saturation, heart rate, tissue perfusion, or other optically-detectable physiological indicators.
Working Principle
The module operates on photoplethysmography (PPG) or similar optical principles. It emits light at specific wavelengths (commonly red and infrared) into biological tissue. The light interacts with blood vessels and tissue components, with some being absorbed by hemoglobin and other chromophores while the remainder is scattered or transmitted. Photodetectors measure the intensity of the returning light, which varies with physiological processes like blood pulsation. Signal processing algorithms then extract physiological parameters from these optical measurements.
Common Materials
Semiconductor (for photodetectors), Optical-grade plastic/glass (for lenses and windows), Printed circuit board (PCB), LED/Laser diodes
Technical Parameters
  • Wavelength range of emitted light, typically 600-1000nm for physiological sensing applications (nm) Customizable
Components / BOM
  • Light Emitting Diode (LED) Part
    Emits light at specific wavelengths for tissue illumination
    Material: Semiconductor (GaAs, InGaN)
  • Photodetector
    Converts received light intensity into electrical signals
    Material: Silicon photodiode or phototransistor
  • Optical Filter
    Selectively transmits specific wavelengths while blocking others
    Material: Interference filter coating on glass substrate
  • Signal Conditioning Circuit
    Amplifies and filters the photodetector output signal
    Material: PCB with integrated circuits and passive components

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Optical Sensor Module.

Optical Sensing Module PPG Sensor Module optical sensor module for physiological monitoring medical-grade optical sensing component light-based tissue interaction sensor modular photodetector for health devices optical filter signal conditioning circuit

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Physiological Sensor Array
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 2 bar absolute
other spec: Humidity: 10-90% non-condensing, Light interference: <1000 lux ambient
temperature: 0°C to 50°C (operational), -20°C to 70°C (storage)
Media Compatibility
✓ Human skin contact applications ✓ Transparent/translucent biological tissues ✓ Clear fluid media (saline, water-based solutions)
Unsuitable: High particulate slurry environments (>5% opacity)
Sizing Data Required
  • Target tissue depth/penetration requirement
  • Required signal-to-noise ratio (SNR)
  • Sampling rate/frequency response needed

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Lens Contamination
Cause: Accumulation of dust, oil, or debris on optical surfaces, leading to signal attenuation, false readings, or complete failure due to blocked light transmission.
LED/Laser Source Degradation
Cause: Gradual output power reduction or spectral shift over time from thermal stress, current overload, or inherent material aging, resulting in unreliable detection thresholds.
Maintenance Indicators
  • Intermittent or erratic output signals despite stable process conditions
  • Visible buildup, clouding, or scratches on the sensor's lens or housing window
Engineering Tips
  • Implement regular cleaning schedules using approved, non-abrasive solvents and lint-free wipes, and ensure protective air purges or sealed housings in dirty environments.
  • Monitor operating temperature and electrical current within manufacturer specifications, and use surge protection on power lines to prevent overstress on emitter components.

Compliance & Manufacturing Standards

Reference Standards
ISO 10110-7:2017 (Optics and photonics - Preparation of drawings for optical elements and systems - Surface imperfection tolerances) ANSI/IES LM-79-19 (Electrical and Photometric Measurements of Solid-State Lighting Products) CE marking per EU Directive 2014/35/EU (Low Voltage Directive) for electrical safety
Manufacturing Precision
  • Focal length: +/-0.5%
  • Sensor alignment: +/-0.1° angular deviation
Quality Inspection
  • Environmental stress screening (temperature cycling: -40°C to +85°C)
  • Optical performance verification (MTF measurement at specified wavelengths)

Factories Producing Optical Sensor Module

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What types of physiological signals can this optical sensor module detect?

This module detects physiological signals like heart rate, blood oxygen saturation (SpO2), and perfusion index through photoplethysmography (PPG) by measuring light absorption in biological tissues.

How does the optical filter improve signal accuracy in this module?

The optical filter selectively transmits specific wavelengths while blocking ambient light interference, ensuring clean signal acquisition and reducing noise for precise physiological measurements.

What applications is this optical sensor module suitable for?

Ideal for wearable health monitors, medical diagnostic equipment, fitness trackers, and remote patient monitoring systems requiring non-invasive physiological data collection.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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