Smart Glasses Factory: From EVT to Mass Production | OEM Guide

A professional smart glasses factory follows a strict NPI (New Product Introduction) process. Understanding EVT, DVT, PVT, and MP stages helps buyers audit factories and set realistic timelines.

EVT: Engineering Verification Test

EVT is the first prototype stage. Factories build 20-50 units to verify the schematic and PCB layout. Key checks: camera module alignment, battery safety, optical axis calibration.

• Build qty: 20-50 units
• Duration: 2-3 weeks
• Exit criteria: No critical hardware bugs, basic functions work

DVT: Design Verification Test

DVT connects industrial design to tooling. Factories build 100-300 units from pilot tooling. Drop tests, IP ratings, and thermal tests happen here.

• Build qty: 100-300 units
• Duration: 3-4 weeks
• Exit criteria: Pass all reliability tests, FCC/CE pre-scan passed

PVT: Production Verification Test

PVT is the pilot run using mass production tooling. Output: 500-1000 units. This stage validates SMT programs, yields, and pack-out processes.

• Build qty: 500-1000 units
• Duration: 4-6 weeks
• Exit criteria: Yield >92%, line rate meets takt time

MP: Mass Production

Full-scale production begins. Regular IQC (Incoming Quality Control), IPQC (In-Process QC), and OQC (Outgoing QC) ensure consistency.

• MOQ: 1000+ units
• Lead time: 30-45 days
• QC: AQL 1.0~1.5 sampling

Factory Acceptance Checklist

1. SMT lines: ≥4 lines, SPI + AOI in-line
2. Optical lab: Xenon light box, MTF tester
3. Certifications: ISO 9001, CE, FCC, RoHS
4. 18+ years foreign trade experience
5. Shenzhen base: fast logistics, BGI supply chain

Smart Glasses Factory FAQ

Q: How long does EVT to MP take?
A: Typical timeline: EVT 2-3 weeks, DVT 3-4 weeks, PVT 4-6 weeks. Total 9-13 weeks.

Q: What yield should I expect at PVT?
A: Target >92% for consumer models. Industrial models may start at 85%.

Q: Can I audit the factory before tooling?
A: Yes. Site audits recommended after DVT samples pass your tests.

Q: What certifications are required?
A: CE/FCC for global sales. RoHS/REACH for EU. ISO 9001 for factory quality system.

Why GenChipEMS for Smart Glasses OEM?

• 18 years foreign trade experience — proven export track record
• Shenzhen production base — global logistics hub
• Full compliance: CE, FCC, RoHS, UKCA
• Flexible MOQ — EVT from 20 units
• 12-month warranty, spare parts support

Contact Our OEM Team

Email: [email protected]
Phone: +86 138 2651 9287

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