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A method for detecting the prism degree of a dura-pressed triangular prism lens

A detection method, the technology of the prism, which is applied in the direction of testing optical properties, etc., can solve the problem that the prism degree of the film-pressed prism lens cannot be measured, and achieve the effect of improving the measurement accuracy

Inactive Publication Date: 2018-01-23
浙江艾明德生物科技有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] In order to overcome the deficiency in the prior art that the lens prism degree of the film-pressed prism cannot be measured, the present invention provides a method for measuring the prism degree of the film-pressed prism lens with high detection sensitivity and good test reliability.

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  • A method for detecting the prism degree of a dura-pressed triangular prism lens
  • A method for detecting the prism degree of a dura-pressed triangular prism lens
  • A method for detecting the prism degree of a dura-pressed triangular prism lens

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] refer to Figure 1 ~ Figure 3 , a method for detecting the prism of a triangular prism lens by dura mater pressing, the detection system for realizing the method includes a guide rail, an optical path adjustment unit, a detachable lens fixing unit, and a position for obtaining the maximum intensity of light according to the received light and obtaining the lens according to the position The data reading unit of prism degree, the optical path adjustment unit and the detachable lens fixing unit are installed on the guide rail, the optical path adjustment unit includes a laser emitting system, an optical path adjuster and a beam expander, and the laser emitting The transmitting end of the system is equipped with the optical path adjuster, the outgoing direction of the optical path adjuster is equipped with the beam expander, and the detachable lens fixing unit incl...

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Abstract

A method for detecting the prism degree of a dura-pressed triangular prism lens, comprising the following steps: first, fixing the dura-coated triangular prism on a detachable lens fixing unit; The beam expander realizes parallel beam output; the third step is to adjust the dura-pressed prism to realize deflected light output; the fourth step is to observe the reading of the received light intensity in the data reading unit; the fifth step is to When the reading reaches the maximum value, record the position reading value at the current moment; according to the position reading value L2, the vertical distance L1 between the dura-pressed triangular prism and the data reading unit, the prism degree of the dura-pressed triangular prism lens △=(L2 / L1)*100. The invention has high detection sensitivity and good test reliability.

Description

technical field [0001] The invention relates to a technique for detecting the prism degree of a triangular prism lens pressed and applied for strabismus treatment, in particular to a method for detecting the prism degree of a triangular prism lens pressed by dura mater. Background technique [0002] Strabismus is one of the more common diseases in children's eye diseases, and the incidence rate is about 2%-3%. In recent years, dura mater pressing prisms have begun to be used in the direct treatment of children's strabismus or as adjuvant treatment before and after surgery. According to the reports of medical institutions, press-fit prisms have achieved good clinical therapeutic effects in the treatment of hidden strabismus, common strabismus, and paralytic strabismus. The dura-coated prism is composed of a group of Fresnel microstructure prisms neatly arranged to control the refraction of incident light. Compared with the traditional glass prism, the dura-pressed prism has...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
Inventor 付明磊乐孜纯张湘南徐武超
Owner 浙江艾明德生物科技有限公司