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Clip Frame Measurement Guide

The clip frame measurement mode is used to measure fitting parameters for clip frame glasses. This guide provides a detailed explanation of the measurement process and key considerations.

Measurement Process

Image Description Image Description Image Description

1. Measurement Preparation

  • Ensure the measurement environment has adequate lighting.
  • Adjust the height and angle of the measurement frame.
  • Ensure the customer's face is directly facing the camera.
  • Check that the camera focus is clear.
  • Ensure the clip frame is correctly and securely installed.

2. Photo Capture

The system requires the following photos to be taken:

Frontal Photos (2 Photos)

  • First Photo: Used to measure parameters such as pupil distance and pupil height.
  • Second Photo: Used to verify the measurement results.

Side Photo (1 Photo)

  • Right-side photo: Used to measure parameters such as forward tilt angle and frame curvature.
  • Ensure the ear root position is clearly visible.

3. Coordinate Calibration

Frontal Photo Calibration

  • The system automatically identifies pupil positions.
  • Verify the accuracy of the recognition results.
  • Mark the clip frame position.

Side Photo Calibration

  • Mark the pupil cornea position.
  • Mark the inner tangent line position of the clip frame.
  • Mark the angle of the clip frame.

4. Parameter Calculation

The system automatically calculates the following parameters: - Pupil Distance (PD) - Near Pupil Distance (30cm) - Pupil Height - Lens-Eye Distance (BVD) - Forward Tilt Angle - Frame Curvature - Face Width - Nose Bridge Width - Frame A Value - Frame B Value

Notes

  1. Measurement Environment
  2. Maintain even lighting in the environment.
  3. Avoid direct strong light.
  4. Ensure a simple background.

  5. Prevent reflections from the clip frame.

  6. Photo Requirements

  7. Ensure the clip frame is correctly positioned. Image Description
  8. Avoid movement of the clip frame.
  9. Keep the face directly facing the camera (refer to measurement frame frontal shooting requirements). Image Description
  10. Maintain a natural facial expression.
  11. Ensure the pupils are not obstructed by lens reflection circles during frontal photos. Image Description

  12. Ensure the side photo is taken directly facing the camera. Image Description

  13. Coordinate Calibration

  14. Carefully verify the automatically recognized results.
  15. Manually adjust coordinates if necessary.
  16. Ensure the bounding box aligns with the inner edges of the frame on all four sides. Image Description

  17. Ensure the red line aligns with the inner edge of the lens. Image Description

  18. Result Validation

  19. Check if the measurement results are reasonable.
  20. Re-measure if necessary.
  21. Save the measurement records.
  22. Verify the accuracy of the clip frame parameters.

Common Issues

  1. Inaccurate Measurement Results
  2. Check the measurement environment lighting.
  3. Confirm the shooting angle is correct.
  4. Verify the accuracy of coordinate calibration.

  5. Check if the clip frame installation is centered.

  6. Unable to Recognize Pupils

  7. Adjust lighting conditions.
  8. Ensure the face is directly facing the camera.
  9. Check for reflections from the clip frame.

  10. Adjust the clip frame position.

  11. Incorrect Clip Frame Parameter Calculation

  12. Ensure the clip frame position marking is accurate.
  13. Check the quality of the side photo.
  14. Verify the measurement frame position is correct.
  15. Confirm the clip frame angle.

Measurement Results

After measurement is complete, the system will generate a detailed parameter report, including: - Specific values for all measured parameters - Measurement timestamp - Customer information - Measurement result values

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