Sensepriced
Machine-Vision LED Lighting (diffused + polarized)
Shenzhen/Dongguan vision-lighting makers · Guangdong, CN
Ring / bar / dome LED lights with diffusion and polarization. Reflections on a glossy cable jacket are the #1 image-quality enemy — one diffused, polarized light per camera.
Data out
n/a (illumination) — constant-current driver, strobe via GPIO optional
Price
basic rings from ¥35 · pro polarized 90° units ~¥850 · branded equivalents 10×+
- 35 CNY — 144-LED ring w/ polarizer, 1688 listing →
- 850 CNY — 90° polarized inspection light, 1688
Sourcing
- 1688 → freight forward · 1–2 weeks
- Shopee TH (basic rings) · 1–3 days
Gotchas
- Match light geometry to defect type: dome for matte scratches, low-angle for embossing
- Polarizer pairs (light + lens filter) kill specular glare
- Validate on the bench rig before buying multiples