Grand Seiko Auto Kerato-Refractometer GR-3300K
Specification: " Model: GR-3300K/ GR-3500KA " Refraction Measurement: Sphere: 22^+30D(VD4®) 30--F221)011kI2i (0.01/012/025DStep) Cylinder 0-±10D(0.01/0.12/0.25DStep) Axis angle 1-180° (1°Step) " Measurement of Corneal Radius: Corneal radius 5.0-10.0mm (0.01mmStep) Refractive power 33.75-67.5D (Corneal Refractive Index n=1.3375) (0.01/0.12/0.25DStep) Cylindrical power 0—±10D Axis angle 1--180° (1°Step) " Corneal Measured Area: 0 2.8mm(Ring Measurement/at S.0® of Corneal Radius) 07.0mm(4 Pahl Peripheral Measurement 8.0. of Corneal Radius) " Pupil Diameter Measurement: 02-08mm (0.1mm step) " Vertex Distance: 0, 10, 12, 13.5, 15mm " Minimum Pupil Diameter: 02.2mra " Papillary Distance Measurement Range: 0-85mm (1mmStep) " Auto Start: 0 " Auto Focus/Auto Traci: 0 I X " Printer: Thermal printer with Automatic Cutter (Width 570) " Internal Monitor: 5.7 inch LCD Display (Color) " Movable Distance: Back/Force ±I7re Right/Left 343® Up/Down ±17,a " Movable Distance of Chin-rest: ±30mm " Overall Dimension: (W) 260mmX (0) 465mmX (LI) 453mm " Weight: About 20kg I About 17kg " Output: RS-232C,USB2.0 Interface " Rated Voltage: 100-240V 50/6011. " Consumption: 90VA I 80VA " Power Save: OFF, 3, 5, 10 min. (Selectable)
Features: " 3D Auto Measurement: With Auto Focus + Auto Track + Auto start, the measurement is taken at the most proper position automatically without operating the joystick precisely nor pushing the start switch. " Auto Start: Automatically starts the measurement once the eye position and the focus are aligned. " Tilting Large LCD: Operator can be at any position and the large color LCD make the measurement easy. " Precise Measurement: Improved measurement accuracy with newly designed optical system. " User Friendly Printer with Auto Cutter: Just throw a paper roll into the printer box without any adjustment and the Auto Cutter makes easy to tear off the printout. " Simple Lock: Just turn the knob to stop the main unit temporary.It can be put on the slind-ing table safely. " Electric Chin Rest: The chin rest can be adjusted to the proper level from the operator side with the switch. " Pupil Diameter Measurement: Useful feature for the subject with Multi Focus Contact Lens and IOL. The pupil diameter at 0.1mm step (minimum 2mm) is measured simultaneously with refractive value. " Advanced IOL Mode: Improved measurement accuracy of the subject with the cataract and/or the IOL implanted. " Data Output: The measurement data can be transferred to the external devices by RS232C and USB interface. The data can be retrieved into the spread sheet using Data Collection Software (Optional). " PD Measurement: In addition to the measurement of Far PD, Near PD is calculated based on it at the selected distance. " Small Pupil Measurement: Improved system allows to measure smaller pupil diameter as small as 2.2mm and the subject with long eyebrows and smaller eyes can be measured more easily. " Corneal Peripheral Measurement: Measuring corneal peripheral is useful to determine the base curve for fitting contact lens. " Tonic Accommodation Measurement: The level of fatigue and its recovery can be measured. This feature is able to prove reliability of far point measurement. Measuring tonic accommodation traditionally required a special settings such as showing empty field to the subject in the special room. " Contact Lens Selection: In addition to general refraction and corneal data, corneal peripheral, residual astigmatism, and pupil diameter provides more accurate selection of the progressive and large size contact lens.
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