Analog eye with adjustable diopter

Abstract

The invention discloses an analog eye with adjustable diopter and mainly solves the problem that the diopter of the conventional human eye calibrating model cannot be adjusted. The analog eye with adjustable diopter is characterized in that a shell (2) is divided by insulating layers (4) into a front cavity (8), a middle cavity (9) and a rear cavity (10); transparent liquid is filled in the front cavity (8), the middle cavity (9) and the rear cavity (10) respectively; the liquid in the middle cavity (9) is insoluble with the liquid in the front cavity (8) and the liquid in the rear cavity (10); and certain voltage is applied between a first electrode (6) and a second electrode (7) and between the second electrode (7) and a third electrode (8). The diopter of the analog eye can be continuously adjusted in a stepless way, so that convenience is brought to ophthalmology teaching, and uniform calibrating reference is provided for ophthalmological diopter diagnostic instruments; and the analog eye with adjustable diopter has the characteristics of large diopter adjustment range, high accuracy, high adjustment speed, high durability, large light transmittance capacity and low power consumption.

Description

technical field [0001] The invention relates to a human eye calibration model, in particular to a simulated eye with adjustable diopter. 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 calibration models of the human eye, and they are all non-adjustable static model eyes. After the human eye diopter inspection instrument is processed, it needs to be calibrated. In order to have a unified standard at the factory, the general manufacturer will make a human eye calibration model, and use the human eye calibration model to perform unified calibration of the human eye diopter inspection instrument. There is no uniform calibration benchmark in the industry in China, and the human eye calibration models of various manufacturers are different, resulting in different standards for human eye diopter inspection instruments pr...

AI Technical Summary

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 eye with adjustable diopter. The diopter of the simulated eye can be continuously and steplessly adjusted, which is convenient for ophthalmology teaching and provides ophthalmic refraction diagnostic instruments. Unified calibration reference, with the characteristics of large diopter adjustment range, high precision, fast adjustment speed, good durability, strong light penetration ability and low power consumption

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