The measurement principle of the artificial lens optical eccentricity tester is to place the artificial lens in a fixture with a prescription diameter (10 or 11mm) and measure the offset distance between the geometric center of its optical body and the center of the fixture hole seat. The optical eccentricity measurement function of artificial intraocular lens is already included in IM-3 and does not need to be purchased separately.
As one of the existing functions of the IOL-IMAGER imaging measurement instrument, the brief introduction here is the same as the IOL-IMAGER imaging measurement instrument * and is only for online promotion purposes. Please forgive us!

- The measurement principle of the artificial lens optical eccentricity tester is to place the artificial lens in a fixture with a prescription diameter (10 or 11mm) and measure the offset distance between the geometric center of its optical body and the center of the fixture hole seat.
- The optical eccentricity measurement function of artificial intraocular lens is already included in IM-3 and does not need to be purchased separately.
Artificial intraocular lens imaging measurement instrument IM-3Measurable and Observable:
- Measurable physical properties specified in ISO11979-3 or YY0290.3: axial displacement, optical eccentricity, optical tilt angle (measurable in four directions), contact angle
- Measurable: Lens diameter, outer contour, loop diameter, length, and angle, etc
- Observable: Lens surface quality, defects, knife marks, edge burrs, etc
Artificial intraocular lens imaging measurement instrument IM-3Product advantages:
- One instrument can perform both frontal and lateral measurements.
- XYZ three-axis can move quickly, Z-axis can be fine tuned.
- Provide four independently controlled directional lighting modes: front lighting, back lighting, side lighting, and diagonal lighting.
- The entire measurement process is carried out in a constant temperature water bath, simulating the human eye environment.
- High definition cameras and optical paths provide high-quality images.
- Powerful software provides various measurement and export functions.
Host specification parameters:
- Size: Width 330mm, Depth 230mm, Height 515mm
- Weight: Approximately 11Kg
- Output: USB3.0-B
- Mobile range:
X-axis (left-right movement): 60mm
Y-axis (forward and backward movement): 50mm
Z-axis (up and down focus): 55mm+10mm fine adjustment
Temperature control/Specification parameters of light source control box:
- model: TC-35-IM
- Size: Width 150mm, Depth 235mm, Height 120mm
- Weight: Approximately 1.8kg
- Input: 220VAC 2A
- Output (large): 5V-1000mA, 0~12V-800mA, 24V-2500mA
- Positive lighting: one level adjustable
- Side lighting: adjustable in two levels
- Backlight: Two adjustable levels
- Slant lighting: one fixed level
- Temperature display resolution: 0.1 ℃
Optical parameters:
- Sensor size: 1/2.5 CMOS (5.76 * 4.29mm)
- Resolution: 5 million pixels (2592 * 1944)
- Pixel size: 2.2um * 2.2um
- Shutter: Electronic Rolling Shutter
- Sensitivity: 1.76V/lux-sec 550nm
- Object distance: 110mm
- Field of view: approximately 19.2mm x 14.4mm
- Optical magnification: 0.3X
- Display magnification: Depending on the monitor (approximately 38 times for a 1:1 22 inch display and 109 times for enlargement)
- Positive lighting: white coaxial downward illumination, adjustable brightness
- Side lighting: white LED soft light board, adjustable angle from 0 to 90 degrees, brightness adjustable and switchable
- Back lighting: white LED soft light board, adjustable brightness and switchable
- Slant lighting: white LED spotlight, adjustable angle at will
Measurement slots and fixtures:
- Heating method: Ceramic heating
- Heating power: up to 60W
- Medium used: water or salt solution
- Fixture categories: standard fixtures, circular quick fixtures, bidirectional fixtures, square quick fixtures, a total of 7 in four types
- Fixture clamping: stroke of 13mm, resolution of 0.001mm, full cycle repeatability accuracy better than 0.02mm
Measurement software parameters:
- Measurement functions: distance, angle, trajectory, area, radius, perimeter
- Image processing: brightness, contrast, sharpness, color, negative film, rotation, flipping, straightening
- Image scaling: 1%~800%
- The measurement results can be exported as an Excel file
- Repeated measurements can be analyzed and statistically analyzed
- Default measurement resolution: 0.001mm