Spectacle frame wearing deformation displacement measuring device and measuring method thereof

Abstract

The invention relates to a spectacle frame wearing deformation displacement measuring device which is formed by a fixing support, a camera fixing plate, a spectacle frame size measuring plate and a high resolution digital camera. The fixing support comprises at least two layers of horizontal fixing support bodies, the camera fixing plate is fixed on the upper layer fixing support body, the spectacle frame size measuring plate is fixed on the lower layer fixing support body, a camera lens clamping hole for placing a camera lens is arranged in the center of the camera fixing plate, and scales are marked on the spectacle frame size measuring plate. The spectacle frame wearing deformation displacement measuring device has the advantages that an optical method is used for measuring, the whole shooting process is finished by a machine, the final results are measured and analyzed through engineering drawing software, the objectivity of the whole measurement is greatly guaranteed, shortcomings of the traditional manual measuring method are overcome, obtaining of dynamic comparison parameters relative to spectacle frame stability are facilitated, spectacle frame deformation displacement situations caused by various reasons after a user wears a pair of spectacles can be corrected in time, the spectacle wearing visual quality and normal refraction development of eyes can be guaranteed, and the spectacle frame wearing deformation displacement measuring device is worth popularizing and applying.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a spectacle frame wearing deformation displacement measuring device and a measuring method thereof. Background technique [0002] Myopia has become a medical and social problem of great concern to the whole society, and its incidence is still rising. So far, there is still a lack of effective prevention and treatment measures. At present, optical correction through glasses is still the most convenient and effective method. In the fitting of spectacles, the standardized fitting of spherical lens and cylinder lens power and axial position of the lens has been widely recognized. When fitting glasses, it is required to put the pupil and the optical center of the spectacle lens in a suitable position. However, the research results show that due to the poor stability of the spectacle frame, the deformation and displacement cause the pupil to be inconsistent with the optical center of ...

AI Technical Summary

Problems solved by technology

However, the research results show that due to the poor stability of the spectacle frame, the deformation and displacement cause the pupil to be inconsistent with the optical center of the spectacle, and the polarization center of the spectacle will appear, which will cause the prism effect and cause obvious visual fatigue to the human eye; more importantly, the current commonly used lenses Aspherical design, the peripheral power of myopia lens is higher than the central power, and the deviation between the center of the pupil and the center of the lens will also lead to hyperopia defocusing phenomenon, and optical defocusing is currently recognized as one of the key factors for the formation of myopia, so glasses The deformation and displacement of the rear spectacle frame are very unfavorable to the visual quality and the refractive development of the eye

However, there are no reports about the equipment for dynamic follow-up observation of the deformation and displacement of the spectacle frame and the measurement method for the deformation and displacement of the spectacle frame after wearing glasses.

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