Digital PD Ruler
Port: Shanghai
Minimum Order Quantity: 1 Piece/Pieces
Payment Terms: L/C,T/T,Western Union
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Characteristics | This device is designed in a scientific and reasonable way, integrating technologies on mechanical hairspring orientation measurement system, optical system, ESS and microcomputer into a whole. | Using mechanical hairspring to level at the reflecting point of human cornea to realize the consecutive measurement. It features directness of point-sampling and high accuracy of orientation. | Adopting line-shaped sensors of high definition ,advanced intellectualized electronic systems and digital display which allow the testing results more visible, legible and accurate. | LED lamp-house and a design of low-power consumption ensure the prolonged service life of batteries. | It can realize the measurement of conversion between the PD and the distance of glasses and eyes. | It offers the +2.0D compensation for the degree of eyesight. | The brightness of LED lamp-house is adjustable. | PD meter with self-check function ensures the accuracy of the measured data(NEW FUNCTION) | Main Technical Indexes | 1.Effective range of measurement: | Binocular pupillary distance: 45~82 mm | Left or right pupillary distance: 22.5~41 mm | 2.Indication error: ≤0.5 mm | 3.Rounding error: ≤0.5 mm | 4.Distance of target: 30 cm~∞ | 5.Power source: Voltage: DC 3V | Specification: 5# AA battery | Quantity: 2 pieces | 6.Time for automatic shut-off: | About 1 minute after stopping operation, or turn it off manually. | 7.Size: 233mm(L)×165mm(W)×70mm(H) | 8.Weight: 0.68kg |
Summary | |||
It is a digital precision optical instrument used to measure distance | |||
between human pupils in the process of optometry for fitting spectacles. | |||
Detailed Product Description | |||
1, It employs precise optical structure, the line of light is very clear and precise measurement.The measurement results are displayed digitally,and the left eye and right eye measuring values are displayed separately. | |||
2, Simple and rapid measuring operation, and free operation of the direct PD adjustment lever are possible. | |||
3, When the measuring operation is finished, the auto poweroff and memory function,enable to save the power and not to lose the data. | |||
4, It can also be used in monocular the left eye and right eye separately. | |||
Parameter | |||
Electric Voltage 23A 12V battery | |||
Power 5W | |||
Weight 0.2kg | |||
Volume 21.5(L)x12.2(w)x44(H)cm |