Zeiss Humphrey La 350 Auto Lensometer 1 | EMS
Zeiss Humphrey La 350 Auto Lensometer 1 | EMS
Zeiss Humphrey La 350 Auto Lensometer 2 | EMS

Zeiss Humphrey LA-350 Auto Lensometer (Pre-Owned)

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The Used Zeiss Humphrey LA-350 Auto Lensometer Features:

Automatically Calculated Monocular and Binocular Spectacle PD
Prescriptions with Prism, Contact Lenses, Polycarbonate or other High-Index Materials
Lens Neutralization for Progressive Lenses
Icon-Based Interface
Continuous Feedback


  • Pre-Owned
Features Financing
    Range of Applicability to Lens Types

  • Spectacles: single, bifocal, trifocal, aphakic, and progressive addition lenses
  • Contacts: hard and soft
  • Tints and Coatings: scratch resistant. UV and anti-reflective coatings and tints down to 5% luminous transmittance
  • Refractive materials: all commercially available
  • Lens diameter: 7mm to 100mm
  • High Index Correction: corrects calibration for high-index materials due to dispersion difference in response to operator input of appropriate Abbé value
  • Performance

  • Sphere: -20D to +20D
  • Increments: .01D, .12D, .25D
  • Cylinder: -20D to +20D
  • Increments: .01D, .12D, .25D
  • Axis: 1° to 180°
  • Increments: 1°
  • Prism: -15D to +15D
  • Increments: .01D, .12D, .25D
  • PD: 0 to 90mm
  • Increments: .5mm
  • Operator Interface: Output

  • Video Display: 9° diagonal, white phosphor CRT
  • - Resolution: 640 x 480 pixels
  • - 16 level grayscale
  • Paper size: 58 mm thermal paper
  • Audible prompts and indicators
  • Operator Interface: Input

  • Function buttons
  • Foot Switch for STORE function
  • STORE button
  • Light source: wavelength: 660nm
  • - Type: LED
  • - Measurement pattern size: 5mm
  • - (or diagonal): 3.5 mm (contact lens/PAL)
  • Operating conditions: +10°C to +40°C, 20% to 90% relative humidity
  • Storage conditions: -40°C to +70°C, 0% to 90% relative humidity (non-condensing)
  • Electrical

  • Line voltage: 100 to 240V AC
  • Frequency: 47 to 63 single phase
  • Power: 100V
  • Fuse rating: 3A fast Blow, 250V, 5 x 20mm
  • Current leakage: Less than 100µA at 120V
  • Interfaces

  • Two RS-232 serial communication ports
  • Selectable baud rate: 300 to 19.2K

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