{
  "title": "Controller - VK-X4000",
  "kind": "product",
  "company": "KEYENCE",
  "category": "Metrology & quality control",
  "parameters": {
    "model": "VK-X4000",
    "brand": "KEYENCE",
    "Type": "Controller",
    "Total magnification": "42 to 28800×",
    "Field of view": "11 to 7398 μm",
    "Measurement principle": "Laser confocal, Focus variation, White light interferometry, Spectral interference",
    "Laser wavelength": "VK-X4100: Semiconductor laser, 404 nm VK-X4050: Semiconductor laser, 661 nm",
    "Max. laser measurement speed": "Surface: 125 Hz, Line: 7900 Hz",
    "Max. laser output": "1.0 mW",
    "Laser class": "Class 2 Laser Product (IEC60825-1, FDA (CDRH) Part 1040.10)",
    "Laser light-receiving element": "16-bit photomultiplier",
    "White-light-receiving element": "High-definition color CMOS",
    "Laser confocal｜Height display resolution": "VK-X4100: 0.1 nm VK-X4050: 1 nm",
    "Laser confocal｜Height repeatability σ": "VK-X4100: 10×: 100 nm, 20×: 40 nm, 50×: 12 nm VK-X4050: 10×: 100 nm, 20×: 40 nm, 50×: 20 nm",
    "Laser confocal｜Height accuracy": "0.2+L/ 100 μm or less",
    "Laser confocal｜Width display resolution": "VK-X4100: 0.1 nm VK-X4050: 1 nm",
    "Laser confocal｜Width repeatability 3σ": "VK-X4100: 10×: 200 nm, 20×: 100 nm, 50×: 40 nm VK-X4050: 10×: 400 nm, 20×: 100 nm, 50×: 50 nm",
    "Laser confocal｜Width accuracy": "Measured value ±2% or less",
    "Focus variation｜Height display resolution": "VK-X4100: 0.1 nm VK-X4050: 1 nm",
    "Focus variation｜Height repeatability σ": "VK-X4100: 5×: 500 nm, 10×: 100 nm, 20×: 50 nm, 50×: 20 nm VK-X4050: 5×: 500 nm, 10×: 100 nm, 20×: 50 nm, 50×: 30 nm",
    "Focus variation｜Height accuracy": "0.2+L/ 100 μm or less",
    "Focus variation｜Width display resolution": "VK-X4100: 0.1 nm VK-X4050: 1 nm",
    "Focus variation｜Width repeatability 3σ": "VK-X4100: 5×: 400 nm, 10×: 400 nm, 20×: 120 nm, 50×: 50 nm VK-X4050: 5×: 400 nm, 10×: 400 nm, 20×: 120 nm, 50×: 65 nm",
    "Focus variation｜Width accuracy": "Measured value ±2% or less",
    "White light interferometry｜Height display resolution": "0.01 nm",
    "White light interferometry｜Width display resolution": "0.1 nm"
  },
  "summary": "",
  "sections": [],
  "updated_at": "2026-10-11"
}