Human-eye simulation calibrating model

Abstract

A human-eye simulation calibrating model mainly solves the problem that diopter of an existing human-eye calibrating model cannot be adjusted. The human-eye simulation calibrating model is characterized in that an electrode layer (4) is arranged on the outer wall of a shell (2), a hydrophobic dielectric layer (5) is arranged on the inner wall of the shell (2), an inner cavity of the shell (2) is divided into a front cavity (8), a middle cavity (9) and a rear cavity (10) by an insulating ring (6), conductive polar liquor is filled in the middle cavity (9), insulating non-polar liquor is respectively filled in the front cavity (8) and the rear cavity (10), the density of the polar liquor is identical to that of the non-polar liquor, the refractive index of the polar liquor is different from that of the non-polar liquor, the polar liquor is insoluble in the non-polar liquor, the polar liquor is connected with anodes of direct-current power sources (7), and the electrode layer (4) is connected with cathodes of the direct-current power sources (7). Diopter of the human-eye simulation calibrating model can be changed, different refractive states of a simulated eye are adjusted by simply regulating voltage, and the human-eye simulation calibrating model has the advantages of high durability, large diopter adjustment range, high light penetration capacity, precision and speed and low power consumption.

Description

technical field [0001] The invention relates to a human eye calibration model, in particular to a simulated human eye calibration model. Background technique [0002] At present, the human eye diopter inspection instruments (such as refractometers and refractometers) produced by ophthalmic instrument manufacturers on the market all use their own human eye calibration models, and they are all non-adjustable static model eyes. There is no unified calibration in the industry in China In addition, the human eye calibration models of different manufacturers are different, resulting in different standards for the human eye diopter inspection instruments produced by different manufacturers. It is difficult for doctors to use inspection instruments from different manufacturers to check patients, which brings inconvenience. Contents of the invention [0003] In order to solve the problem that the diopter of the existing human eye calibration model cannot be adjusted, the present in...

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Problems solved by technology

[0003] In order to solve the problem that the diopter of the existing human eye calibration model cannot be adjusted, the present invention provides a simulated human eye calibration model, the simple voltage adjustment of the diopter of the simulated human eye calibration model can realize the adjustment of different refractive states of the simulated eye, the model The structure of the eye is consistent with that of the real human eye, which can provide a unified calibration benchmark for ophthalmic refractive diagnostic instruments. It is very suitable for use in the ophthalmology teaching process. The model eye can easily simulate the normal eye, myopia, hyperopia and other states, Without moving parts, it has the characteristics of good durability, large diopter adjustment range, strong light penetration ability, low power consumption, high precision and fast speed

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