CN2731428Y

CN2731428Y - Optical index measurer for glasses

Info

Publication number: CN2731428Y
Application number: CN 200420046455
Authority: CN
Inventors: 何明川
Original assignee: Xiamen Wancheng Optical Industrial Co Ldt
Current assignee: Xiamen Shangjie Optical Technology Co., Ltd.
Priority date: 2004-05-28
Filing date: 2004-05-28
Publication date: 2005-10-05
Anticipated expiration: 2014-05-28

Abstract

The utility model discloses an optical index measurer for glasses, comprising a scale plate with scales, a baffle board arranged in vertical to the scale plate and a measuring column which can slide along the vertical direction of the baffle board on the scale plate. The measurer adopts the measuring mode of that The left eyeglass and the right eyeglass of a lens-meter can be respectively dotted twice for determining the optical central point of glasses. The glasses is placed on the scale plate of the measure, two eyeglasses are positioned on the same horizontal plane, the simultaneously the middle part of the glasses is arranged on the movable measuring column, and thus the glasses is symmetrical on the scale plate with scales. Then the glasses is slid for causing the bottom of the glasses is against the bottom surface of the baffle board, and thus the bottom edges of two eyeglasses are positioned on the same horizontal plane. Simultaneously the glasses is positioned at a reading measurable position on the scale plate, and finally vertical reading and direct judge are directly carried out according to the scales on the scale plate of the measurer. When the measuring method is properly operated, the accuracy of measuring result is high, and required parameter can be directly read without needing calculation and judgment.

Description

Glasses optical index measurement mechanism

Technical field

The utility model relates to a kind of glasses optical index measurement mechanism.

Background technology

In general, glasses must carry out the geometrical optics index and detect, to guarantee to join the mirror quality after assembling.And the glasses equipped according to GB13511-1992, presbyopia is dressed up the optical index that mirror and vision prescription get the right lensses for one's eyeglasses surely and is generally included the optical centre horizontal range, horizontal departure, vertical mutual deviation, parameters such as optical centre height, and containing the glasses of sub-eyeglass, Bifocal lenses etc. also comprise sub-eyeglass vertex position, the vertical mutual deviation in sub-eyeglass summit, parameters such as eyeglass vertex lens power mutual deviation.

When measuring these optical indexes, mainly adopted following method in the past:

1, part optician's shop and quality testing department are when check at present, and the method for inspection that is adopted is the direct read out function of interpupillary distance inspection by the computer lensmeter, because there is the inspection error sizable time in this method, so this function can only be as the usefulness of summary inspection.

When 2, overlooking owing to eyeglass is arc, therefore measure " optical centre horizontal range deviation " when reaching " limit deviation of the horizontal mutual deviation of optical centre " respectively twice left and right sides eyeglass get ready, optic center point O ', O (as shown in Figure 1) with two eyeglasses about determining, on coordinate paper 9, carry out vertical reading again, calculate and judge.Directly adopt ruler or vernier caliper measurement that mistake (as Fig. 1: one-sided optical centre horizontal range is a solid horizontal line, and vernier caliper measurement is dotted line) is in fact arranged very.And must horizontal reading when measuring above-mentioned optical index, and 2 straight line readings simply, because center line and two actual measurement optic center point are not on a horizontal line in the nose, and two actual measurement optic center point are not usually also on a horizontal line, as O ' O among Fig. 2 and BO, otherwise also will make measurement inaccurate.

By above-mentioned analysis as can be known, because eyeglass and spectacle-frame are arc, the optic center point of two eyeglasses is actually two spatial point, not only these 2 not on a surface level, center line and eyeglass base in its relative nose, also not on a horizontal line, so national quality inspection center emphasizes that twice left and right sides eyeglass got ready respectively when announcing to implement " equipped glasses " GB, and on coordinate paper, carry out vertical reading, calculate and judge, though so requirement, but also fail at present on GB, to describe how to carry out practical operation in detail, therefore when actual detected, also with the people for being judged as the master, existence is than mistake.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of glasses optical index measurement mechanism, and it can directly detect the glasses optical index, and the accuracy of measurement height.

For solving the problems of the technologies described above, technical solution of the present utility model is: a kind of glasses optical index measurement mechanism, comprise a scaleplate with coordinate scale, with the vertically disposed baffle plate of scaleplate and can be at the measurement column of scaleplate upper edge baffle plate vertical direction slippage.

Described measurement column is provided with the back-moving spring that it is resetted.

After adopting such scheme, concrete metering system of the present utility model is: twice left and right sides eyeglass got ready respectively, to determine the optic center point of two eyeglasses; Then glasses are put on the scaleplate of measurement mechanism, and two eyeglasses are placed movably on the measurement column simultaneously near the part in the nose, the glasses that slide again make the bottom surface of its base abuts in baffle plate, but make glasses be in the survey measurements position of scaleplate simultaneously, at last, directly carry out vertical reading according to the coordinate scale on the measurement mechanism scaleplate, directly judge, thereby once read parameters such as described optical centre horizontal range, horizontal departure, vertical mutual deviation, optical centre height; When adopting this device to measure, lie against glasses on the scaleplate after, two eyeglasses promptly are on the surface level, left and right sides picture frame two bases of glasses are resisted against the bottom surface of baffle plate again, this moment two eyeglasses the base be on the horizontal line; When the position is close to circular measurement column simultaneously in the picture frame nose of the glasses left and right sides, glasses left-right symmetric on the coordinate scale plate is described simultaneously.Use this method as long as suitable operation can directly be read desired parameters, and the vertical reading that is up to state standards and requires, and the accuracy height of measurement result.

Description of drawings

Fig. 1 is a traditional eyewear optical index instrumentation plan;

Fig. 2 is a midline position synoptic diagram in glasses two lens optical central points and the nose;

Fig. 3 is a three-dimensional appearance synoptic diagram of the present utility model;

Fig. 4 is a cut-open view of the present utility model;

Fig. 5 is the A-A cut-open view of Fig. 4;

Fig. 6 is a user mode synoptic diagram of the present utility model.

Embodiment

Please shown in Fig. 3,4,5, measurement mechanism described in the utility model comprise a scaleplate 1 with coordinate scale 11, with scaleplate 1 vertically disposed baffle plate 2 and can be at the measurement column 3 of scaleplate 1 upper edge baffle plate 2 vertical direction slippages; Wherein: described scaleplate 1 is fixed on the hollow box 4, has chute 12 on it; The runner position of relative scaleplate 1 has slot to make way 21 on the described baffle plate 2, so that the bit space that allows of measurement column 3 to be provided; Described measurement column 3 is fixed on the slide block 5, and this slide block 5 is located at the inside of hollow box 4, and it can slippage on two long pin 6, drive measurement column 3 slippages simultaneously, and a side of slide block 5 also is provided with back-moving spring 7.

As shown in Figure 6, concrete metering system of the present utility model is:

One, glasses is carried out left and right sides eyeglass respectively for twice on the computer lensmeter and get ready, to determine optic center point O ', the O of two eyeglasses;

Two, then glasses are put on the scaleplate 1 of measurement mechanism, and make two eyeglasses near on the removable measurement column 3 in the middle of being placed in the middle part of the nose, fit closely for making two eyeglasses and measurement column 3, this measurement column 3 can be made as arc with the binding face of eyeglass, afterwards, the slip glasses make the bottom surface of its base abuts in baffle plate 2, but make glasses be in the survey measurements position of scaleplate 1 simultaneously, at last, directly carry out reading according to the coordinate scale on the measurement mechanism scaleplate 1 11, read described optical centre horizontal range O ' O, the optical centre horizontal departure, vertical mutual deviation, parameters such as optical centre height, and contain the glasses of sub-eyeglass for Bifocal lenses etc., also comprise sub-eyeglass vertex position, parameters such as the vertical mutual deviation in sub-eyeglass summit.

Claims

1, a kind of glasses optical index measurement mechanism is characterized in that: this device comprise a scaleplate with coordinate scale, with the vertically disposed baffle plate of scaleplate and can be at the measurement column of scaleplate upper edge baffle plate vertical direction slippage.

2, glasses optical index measurement mechanism as claimed in claim 1, it is characterized in that: described measurement column is provided with the back-moving spring that it is resetted.