Summary of Contents for AMCON EQ-6001
- Page 1 AMCON LENSOMETER USER’S MANUAL EQ-6001 1-800-255-6161• Fax 1-800-397-0013 www.amconlabs.com...
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Page 2: Table Of Contents
CONTENTS Description and Usage............................2 Main Technical Index............................. 2 Principle of Operation............................2 Functions of Major Components .......................... 3 Eyepiece ................................3 Eyepiece Reticule and Marker Reticule......................3 Reading Division Board........................... 4 Prism Compensation Device ........................... 4 Lens Pressing Unit ............................5 Lens Pushing Unit ............................ -
Page 3: Description And Usage
DESCRIPTION AND USAGE The lensometer is used to measure the power of the spherical lens, power of the cylindrical lens, cylindrical lens axis, prism diopter, prism basal angle, and contact lens diopter power. MAIN TECHNICAL INDEX Range of Diopter Measurement 0 to +/-25D Minimum Scale Value 0.125D at 0 to +/-5D... -
Page 4: Functions Of Major Components
Fig. 1 – Diagram of Optical Principle (1)Light Source (2)Color Filter (3)Marker Reticule (4)Measuring Objective Lens (5)Diaphragm (6)Prism Compensation Device (7)Objective Lens (8)Eyepiece Reticule (9)Eyepiece (10)Reading Division Board (11)Reflect Lens (12)Front Lens (13)Right Angle Prism (14)Back Lens FUNCTIONS OF MAJOR COMPONENTS Eyepiece (Fig. -
Page 5: Reading Division Board
Reading Division Board (Fig. 5) In (9) eyepiece’s field of vision, the reading window is in the lower part of (8) eyepiece reticule. The range of reading (8) eyepiece reticule is +/-25D. The graduations between 0 and +/-5D are at an interval of 0.125D. Those between +/-5D and +/-25D are at an interval of 0.25D. -
Page 6: Lens Pressing Unit
Lens Pressing Unit (Fig. 7) Three plastic pressing feet with springs are used to so that the surface of the lens can be pressed without the lens surface being damaged. To operate, lift the lens pressing bracket so that the lens pressing unit lowers to press the lens. -
Page 7: Objective Lens Bearing Seat
Objective Lens Bearing Seat (Fig. 10) This while nylon part securely supports the surface of any shaped lens without damaging the lens surface. The objective lens is shown below. There are three lock screws. Fig. 10 Diopter Measuring Handwheels (Fig. 11) The diopter measuring handwheels are located on either side of the lensometer. -
Page 8: Illuminating Bulb Chamber
Illuminating Bulb Chamber (Fig. 13) The bulb can easily and quickly be changed by opening the lower corner of the lensometer. Fig. 13 Instrument’s Inclination Regulating Handle (Fig. 14) This handle allows the operator to freely regulate the inclination of the instrument to work at a comfortable posture. -
Page 9: Points Of Attention In Operation
Points for Attention in Operation An observer who has relatively high refractive error should wear the appropriate spectacle or contact lens correction while using the lensometer. Among the green dividing lines, the two lines are spherical marking lines and the three lines are cylindrical marking lines. -
Page 10: Measurement Of Prism Lens
Now rotate the diopter measuring handwheel and at the same time rotate the astigmatism axis measuring handwheel to focus spherical marking lines clearly once more. Now the reading in the window is +1.00, which is the same as the first reading. Then rotate the diopter measuring handwheel to focus the cylindrical marking lines clearly. -
Page 11: Demarcation Of Lens
Demarcation of Lens For demarcation of a spherical lens, rotate the diopter measuring handwheel to focus the lines of the (3) marker reticule clearly. Lightly move the lens to find the right optical center. Make three- point printing marks with the printer. For demarcation of the axis of a sphero-cylindrical lens, rotate the astigmatism axis measuring handwheel to the required angle.
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