INS-11032 | Internal Reading Lensmeter SML-I

The Opti+ INS-11032 SML-I Internal Reading Lensmeter is a manual optical instrument designed for accurate verification of ophthalmic lenses. Its internal reading system displays the measurement scale directly within the eyepiece, allowing the operator to observe the target and read the lens power without changing viewing position.

With a wide measurement range of -25.00 D to +25.00 D, the SML-I can measure spherical and cylindrical lens power, cylinder axis, prism power, prism base direction, and contact lens power. Its wide field of observation, adjustable eyepiece, secure lens-support system, and integrated three-point marking mechanism make it a practical solution for optical stores, lens laboratories, eyewear manufacturers, and ophthalmic departments.

Outstanding Features

Internal Reading System

The diopter scale is displayed directly inside the eyepiece together with the measurement target. This internal reading configuration allows the operator to focus the lens and read its power from the same viewing position.

Wide ±25.00 D Measuring Range

The SML-I measures vertex power from -25.00 D to +25.00 D, accommodating a broad range of ophthalmic prescriptions used in optical dispensing and lens manufacturing.

Detailed Power Graduations

The measuring scale provides 0.125 D graduations between -5.00 D and +5.00 D. Outside this central range, graduations are 0.25 D up to ±25.00 D.

Sphere and Cylinder Measurement

The lensmeter can evaluate both spherical and sphero-cylindrical lenses, allowing operators to verify sphere power, cylinder power, and cylinder axis during prescription inspection.

Cylinder Axis Measurement

The astigmatism axis scale covers 0° to 180° with 5° divisions, supporting the measurement and alignment of cylindrical lenses.

Prism Measurement

The integrated reticle measures prism power from 0 to 5Δ with 1Δ divisions. Prism base direction can also be determined from 0° to 180°.

Adjustable Eyepiece

The eyepiece offers a focusing adjustment of -5 D to +5 D, helping different operators obtain a clear view of the internal reticle and measuring scale.

Wide Field of Observation

Its optical system provides a broad and clearly organized field of view, allowing the measurement target, prism scale, and internal power scale to be conveniently observed through the eyepiece.

Multiple Lens Applications

The SML-I is suitable for measuring spherical lenses, sphero-cylindrical lenses, prism lenses, and contact lenses, providing versatility for professional lens inspection.

Secure Lens Positioning

A spring-loaded lens holder with three protective contact points keeps the lens stable during measurement. The nylon lens support is designed to accommodate different lens surfaces without damaging them.

Integrated Three-Point Marking System

The built-in marking mechanism applies three aligned reference points to identify the optical center, cylinder axis, or prism base direction before edging or frame installation.

Adjustable Viewing Angle

The inclination of the instrument can be adjusted according to the work surface and operator position, helping provide a comfortable posture during repeated measurements.

✅ The Opti+ INS-11032 SML-I Internal Reading Lensmeter combines a ±25.00 D measuring range, internal scale observation, sphere and cylinder verification, prism measurement, and three-point lens marking in a dependable manual instrument for everyday optical use.