Interpupillary distance measuring device and use method thereof

Abstract

The invention discloses an interpupillary distance measuring device and a use method thereof. The interpupillary distance measuring device comprises a glasses frame, a first glasses leg arranged on one side of the glasses frame and a second glasses leg arranged on the other side of the glasses frame, a first hole and a second hole are symmetrically formed in two sides of a center of the glasses frame, the first hole and the second hole are rectangular, distance measuring scales are printed on edges of upper and lower sides of the first hole and the second hole, and a nose pad is arranged in middle of a bottom of the glasses frame. The method provided by the invention is simple, does not need too many complex instruments, is more accurate in measurement result, and can shoot interpupillary distance change of a subject when the subject is looking far and near.

Description

technical field [0001] The invention relates to the field of pupillary distance measurement, in particular to a pupillary distance measuring device and a using method thereof. Background technique [0002] At present, there are mainly the following methods for measuring interpupillary distance, but they all have shortcomings or deficiencies. [0003] 1. Use the pupillary distance ruler to directly measure the user's pupillary distance. This method measures the pupil-pupil distance. Since the pupil is in the center of the iris, the color contrast is not obvious, especially when the testee's eyeballs are black. It is very difficult to measure the center of the pupil, and it is difficult to distinguish when measuring, resulting in low accuracy of the measurement results. [0004] 2. People can also use a pupil distance meter to measure the user's pupil distance. However, the pupil distance meter needs to be operated by professionals, and the user needs to go to an institution ...

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Problems solved by technology

[0003] 1. Use the pupillary distance ruler to directly measure the user's pupillary distance. This method measures the pupil-pupil distance. Since the pupil is in the center of the iris, the color contrast is not obvious, especially when the testee's eyeballs are black. It is very difficult to measure the center of the pupil, and it is difficult to distinguish when measuring, resulting in low accuracy of the measurement results

[0004] 2. People can also use the pupil distance meter to measure the user's pupil distance. However, the pupil distance meter needs to be operated by professionals, and the user needs to go to an institution or store with the pupil distance meter for measurement. The measurement efficiency is low and the implementation is difficult.

[0005] 3. The method of measuring the interpupillary distance by laser, if the surface of the cornea is irregular (with scars, diseases, etc.), it may not be able to reflect the laser back, and may not be able to measure

[0006] 4. Use digital image processing technology to extract the image coordinates of the center of the pupils of the eyes in the binocular image, and then calculate the interpupillary distance of the two eyes. The equipment is not popular and cannot be used at home, nor can it measure the interpupillary distance in the near and far states. The device It may cause involuntary eye movement of the subject during shooting, the camera quality is not up to the requirement, and the price is expensive

[0007] 5. The design of the existing pupil distance and pupil height measuring instrument, the design of the frame is not lightweight, and a third party is required to adjust the scales up, down, left, and right. The operation takes a long time, and the weight of the device may cause slippage, resulting in deviation, and the cost is high

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