INSTRUCTION MANUAL LENSMETER LM - ایران ممکو

1 INSTRUCTION MANUALLENSMETERLM-8 INTRODUCTION Thank you for your purchase of the TOPCONLENSMETER get the best use of the instrument, be sureto read this INSTRUCTION thoroughly familiarizing yourself with theinstrument and its operations, you will surelybe able to obtain the full benefit of a superiorprecision optical this MANUAL for future As this instrument is a precision equipment, always use it under temperatureand humidity conditions of the normal living environment. Install this instrument on a level and stable table, and avoid exposure todirect sunlight.

2 Keep clean the ambient conditions, and turn off the power source and applythe dustcover when not in use. To ensure exact measurement values, take care and keep dust and greaseoff the lens and other parts that come into contact with the lens. We shall not take any responsibility for overhauling and rebuilding withoutour permission. Note that, if this instrument is used in an manner other than that specifiedherein, it may spoil the protections provided by FOR SAFE USEIn order to encourage the safe use of this product, important warnings are put on the product andwritten in the INSTRUCTION suggest that everyone understand the meaning of the following displays and icons beforereading the Safety Cautions and text.

3 Personalinjury refers to hurt, burn, electric shock, etc. Property damage refers to extensive damage to building or equipment and CAUTIONSI consPrevention itemPageCAUTIONTo prevent pinching your fingers, pay particular attention inchanging the tilt angle of the prevent the machine/component parts from tumbling/falling,operate the machine gently in changing the tilt this display may lead to personalinjury or property icon indicates a Hazard content is expressed with words or an icon eitherinserted in the icon itself or located close to the iconUSAGE AND MAINTENANCEU sage:The LENSMETER is an electric equipment.

4 When using, strictly follow theinstructions in this MAINTENANCE:To maintain the safety and performance of the equipment, never attempt to do themaintenance of parts specified herein, which should be taken care of by our maintenance items that can be covered by users are the following; for details, followthe position adjustment (see page 14)ESCAPE CLAUSE topcon shall not take any responsibility for damages due to fire, earthquake,actions by third person, or the negligence and missuse by the user and used underunusual conditions. topcon shall not take any responsibility for damages derived from the inability touse this equipment, such as a loss of business profit and suspension of business.

5 topcon shall not take any responsibility for damage caused by operations otherthan those described in this INSTRUCTION INDICATIONS AND ITS POSITIONSTo secure the safety of this instrument, warning icons are displayed. To ensure thecorrect use, follow the instructions of this FOR SAFE USE2 SAFETY PRECAUTIONS2 USAGE AND MAINTENANCE3 ESCAPE CLAUSE3 WARNING INDICATIONS AND 3 ITS POSITIONS COMPONENTSCOMPONENT NAME5 ACCESSORIES5 TARGET IMAGETARGET IMAGE6 MEASUREMENT PREPARATIONSMEASUREMENT PREPARATIONS7 MEASUREMENTMEASUREMENT OF 8 SPHERICAL LENSMEASUREMENT OF8 ASTIGMATIC LENSMEASUREMENT OF FRAMED 9 ASTIGMATIC LENSMEASUREMENT OF CONTACT 9 LENSMEASUREMENT OF10 PRISMATIC LENSAXIS MARKING10 PRISM COMPENSATORPRISM COMPENSATOR11 MAINTENANCEMAINTENANCE13 CHECK&ADJUSTMENTCHECK&ADJUSTMENT14 BEFORE REQUESTING REPAIRING

6 SERVICECHECK ITEMS15 SPECIFICATIONS15 OPTIONAL ACCESSORIES154 COMPONENTSCOMPONENT NAMESACCESSORIES(A) Contact lens stop .. 1 pc.(B) Silicon cloth .. 1 pc.(C) 1 pc.(D) UM1 dry cell .. 2 pcs.(E) Lens protection pad ..1 set5 COMPONENTSLM-8E(Diopter power knob with scale)LM-8C(without axis wheel)(E)(D)(B)(C)(A)Lens stopProtractor ringEyepiece adjustment ringLens holderLM-8 Prism holderLens tableAxis wheelDiopter power knobTilt locking leverCell boxLens table adjustment leverAxis marker leverLens holder leverPower switchTARGET IMAGE6 TARGET IMAGEC ross-line Pinhole CoronaPinhole Corona (LM-8C)A Cross-line Pinhole CoronaPinhole coronaDiopter scale reading windowCross-lineScaleCross-lineLM-8E.

7 Diopter power isindicated with scaleon the Diopter PREPARATIONSMEASUREMENT PREPARATIONS1 Check component parts of the machine. Remove the adhesive tape from the lens stop. Remove the adhesive tape from the marking ink dry cells in the cell box. Turn on the power switch; the lamp is lit. The lamp goesoff in 5 minutes automatically to save the cell power. When using an AC adapter (marketed), insert power connector as illustrated below,and then turn on the power switch. In this case, the stays on (even after passing 5minutes).As for the AC adapter, either purchase one from the market or ask your enable measurements in a comfortable position, adjust the tilt angle of themachine by operating the tilt locking starting measurement, properly focus the target (or otherwise an errormeasurement result occurs).

8 Before setting the lens, rotate the eyepiece adjustment ring and stop it where thescale is clearly visible. Placing a white paper at the lens stop makes the scale clearto PREPARATIONSWhen removing dry cells, remove the (+) side first. If the spring of the (-) side jumps out,push it into the avoid visual error inadjustment, rotate it lens stop AC adapter specificationFor Europe, products are designedfor compliance with the CE longerOutput: 6V, 100mA and higherMEASUREMENTMEASUREMENT OF SPHERICAL LENS1 Place the concave surface of the lens on the lens stop and fix it firmly with the focus the target by rotating the diopter power the indicator value on the diopter power OF ASTIGMATIC LENS1 Focus the pinhole corona section of the target by rotating the diopter power the cross-line with the stronger meridian by rotating the axis wheel.

9 (Notapplicable to LM-8C)LM-8C : Align the scale with the stronger meridian by rotating the protractor the diopter power scale and the angle for the meridian the target for the other meridian by rotating the diopter power avoid visual error in adjustment, adjust it in the (+)->(-) the scale center does not align with the target image center, the optical center of lens isnot in proper alignment with the optical axis of LENSMETER . Vertical displacement can beadjusted by pushing the lens toward the lens table by operating the lens table adjustmentlever, and horizontal displacement can be adjusted by moving the lens laterally by directionMeridian directionRead the diopter power scale and these 2 measurement values, take the smaller one in absolute value as the S(spherical) power, and the difference as the C (cylindrical) power.

10 Also, for the axialangle, take the angle of a measurement value of which the absolute value is the OF FRAMED ASTIGMATIC LENSP lace the glasses on the lens table. Press the frame toward the lens table and align thelens with the optical axis. The refractive power can be determined in like manner, but forthe direction of astigmatic axis, set the focus for the stronger refractive the target along the stronger meridian. Align the cross-line with the strongermeridian by rotating the axis wheel. The angle of the indicator is the astigmatic : Align the scale with the stronger meridian by rotating the protractor OF CONTACT LENSR emove the lens stop and tilt the LENSMETER upright.