Sensor and Detector LED diodes are specialized emitters designed to work in conjunction with photodiodes, phototransistors, or integrated sensors for detection, measurement, and control systems. These LEDs operate across both visible and infrared wavelength ranges, typically including visible red (around 620–660 nm) for alignment and indication, and near-infrared bands such as 730 nm, 850 nm, and 940 nm, which are widely used for invisible sensing applications. The selection of wavelength is critical to match detector sensitivity and optimize signal accuracy, penetration capability, and ambient light immunity. They are commonly used in proximity sensing, optical switches, encoders, smoke detectors, medical diagnostics, and industrial automation systems.
Features
- Visible (620–660 nm) for alignment + near-IR (730/850/940 nm) for invisible sensing
- Applications: proximity sensing · optical switches · encoders · smoke detectors · medical diagnostics
- Tight wavelength binning and narrow spectral distribution
- Custom emission angles, package designs and switching characteristics
- IEC 60068 reliability and environmental performance testing
- Visible and near-IR wavelength options across full sensing spectrum
Product Catalog
Support and Services
From sample request to mass production — our engineering team supports OEM/ODM customization, fast prototyping, and reliable scaled delivery.
As a manufacturer of LED packaging, we partner with you from spec selection to scaled production — expert guidance, transparent collaboration, and seamless logistics. Custom PCB design and PCBA assembly support.
FAQ
Q: Are you a manufacturer or trade company?
A: We are a factory in LED packaging since 2010.
Q: Can I get samples before placing larger orders?
A: Yes. Free-of-charge samples for most LEDs; freight to be borne by buyer.
Q: What is your MOQ?
A: Typically 1000pcs per LED type, except white / warm white where MOQ may differ.
Q: How long is the delivery lead time?
A: Most orders ship 7–10 days after payment confirmation; bulk and customized lead times vary.
Q: Which couriers do you use?
A: DHL / UPS / FedEx / TNT for samples and small parcels; sea/air freight for bulk.
Q: Do you support customization (pin cutting, packaging, binning)?
A: Yes. Customized manufacturing services are available for all customers.
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Email: sales@demophotech.com
2/F, Block D, Liye Building, No.20 Qingyuan Road, Wuxi City, Jiangsu Province, China, 214135