CN2286884Y - Anlogue lens with positioning figure of glasses and pupil - Google Patents

Abstract

The utility model relates to an analogue lens for glasses, which has a pupil positioning map with circumferential lattices. The lens is composed of an analogy lens (1) similar to the lens of glasses. Taking a cross center point (3) as a reference, a cross center line (2) is drawn on each lens, and taking every 5 DEG as one counting unit, circumferential scale division marks (4) are drawn on the circumference of 360 DEG at the position which is 18mm away from the cross center point. Taking the cross center line (2) as a reference, the circumference is enlarged by 5mm towards the upper direction, the lower direction, the left direction and the right direction respectively, and taking 1mm as one counting unit, lattice division marks (5) are drawn. According to the analogy lens, the prescribed interocular distance and the astigmatism axial direction can be accurately determined so as to enhance the quality for prescribing glasses and protect the sight and the health of the person wearing the glasses.

Description

The simulation eyeglass of wear a pair of spectacles pupil location map

The utility model is a kind of glasses simulation eyeglass of accurately measuring the band circumference grid pupil location map of joining mirror pupil position and interpupillary distance and astigmatism axial direction when being used to get the right lensses for one's eyeglasses.

Needs along with development of science and technology and market, main composition material---the mirror holder of glasses, the specification of eyeglass, pattern and quality have all had very big variation and raising, but result to the detection of glasses market, most of glasses exist serious quality problems, it is wherein with the problem of ubiquity that interpupillary distance is forbidden, the reason that has this problem is that general spectacles industry is in preparation glasses process, location to the glasses interpupillary distance does not have special equipment and standard, estimate by rule of thumb entirely, therefore can not accomplish that interpupillary distance is accurate, and wear eyesight and health that interpupillary distance inaccurate glasses directly jeopardize the glasses wearer.

The utility model is exactly at the problems referred to above, a kind of simulation eyeglass that indicates glasses circumference grid pupil location map that can accurately measure the glasses interpupillary distance of design, also accurate mark astigmatism axial direction when accurately measuring interpupillary distance.

For achieving the above object, the utility model has adopted and printed circumference grid pupil location map on the simulation eyeglass of the similar lens of every pair, this figure finds out its geometric center point on the simulation eyeglass, as the cross central point, and draw a cross centre line as benchmark, with the cross central point is the center of circle, at radius is that a circumference is drawn in the place of 18mm, and this 360 the degree circumference on per 5 the degree be lattice, the circumference branch case marking of drawing, with the cross centre line is benchmark, up and down, the left and right 5mm that respectively expands, and is that lattice are drawn a grid branch case marking with every 1mm.When mirror is joined in optometry, on trying, the simulation eyeglass that is printed on circumference grid pupil location map is housed to suitable mirror holder, and on the picture of the circumference grid pupil location of this eyeglass, find out optometry and join corresponding pupil position of mirror people and astigmatism axial direction, and on the picture of location, make mark, take off the simulation eyeglass and cut the model that mill needs eyeglass, the astigmatism axial direction of required eyeglass and optical centre are got final product with astigmatism axial direction and the corresponding overlapping of the mark on the pupil position that the circumference grid pupil on the simulation eyeglass is located in the picture.Eyeglass interpupillary distance that grinds like this and astigmatism axial direction accurately and reliably, the simulation eyeglass can constitute by materials such as transparent plastic sheet, glass sheet.Its shape can be divided symmetrical two.

Concrete using method is: 1, two transparent plastic sheets or the glass sheet (simulation eyeglass) that are used to support picture frame of every pair of glasses frame all are printed on circumference grid pupil location map.After the optometry, the person determines suitable spectacle frame to join the mirror, and puts on.By optist or optician's shop salesman on the circumference grid pupil location map of spectacle frame, mark corresponding pupil position and astigmatism axial direction, take off the simulation eyeglass and cut the model that grinds required eyeglass, make that astigmatism axial direction and the corresponding overlapping of pupil position mark in the circumference grid pupil location map gets final product on the astigmatism axial direction of required eyeglass and optical centre and the simulation eyeglass.2, single or directly measure interpupillary distance numerical value and mark accurate interpupillary distance and the astigmatism axial direction that is got the right lensses for one's eyeglasses according to optometry, same convenient.Ministry of Light Industry of country spectacle frame standard: mirror circle 38-56mm, bridge of the nose 14-24mm, the general interpupillary distance of Chinese is between 58-64mm.If person's interpupillary distance 60mm that joins the mirror should select the mirror holder of specification " 44-16 ", the geometric center of this mirror holder is apart from being 60mm, and pupil position is just in time on the cross central point of circumference grid pupil location map.Person's interpupillary distance is still 60mm to suppose to join the mirror, and with the mirror holder of specification " 46-16 ", this mirror holder geometric center is apart from being 62mm, and pupil position should move little lattice in each from the cross central point of both sides circumference grid pupil location map.Apart from being the mirror holder of 64mm, move 2 little lattice in then as geometric center.Apart from being the mirror holder of 58mm, then move little lattice outward, by that analogy as geometric center.

The utility model can accurately mark the person's that joins the mirror pupil position; also can correctly mark its astigmatism axial direction; the glasses that adopt definite glasses interpupillary distance of the utility model and astigmatism axial direction to make; consistent with the actual conditions that should wear glasses; improved and joined the mirror quality, effectively protected glasses wearer's eyesight and healthy.

The utility model is described in further detail below in conjunction with drawings and Examples:

Accompanying drawing is a front elevation of the present utility model.

Each mark bis is 1 simulation eyeglass, 2 cross centre lines, 3 cross central points, 4 circumference branch case markings, 5 grid branch case markings in the accompanying drawing

It is that transparent plastic sheet or glass sheet constitute that the described glasses circumference of accompanying drawing grid pupil location picture has the simulation eyeglass (1) of similar eyeglass, cross centre line (2) is arranged above the eyeglass, the cross centre line intersection is cross central point (3), and the cross central point should be positioned on the geometric center point of this eyeglass.Be the center of circle on the 360 degree circumference at distance central point 18mm place with per 5 degree with the cross central point be that lattice draw circumference branch case marking (4), with cross centre line (2) be benchmark up and down, the left and right 5mm that respectively enlarges, and be that lattice draw grid branch case marking (5) with every 1mm.

Last figure is the woman style simulation eyeglass than small dimension of band circumference grid pupil location map, and figure below is the simulation eyeglass of the big specification of man style of band circumference grid pupil location map.

Claims (3)

1, a kind of glasses simulation eyeglass of accurately determining to join the band circumference grid pupil location map of mirror pupil position and interpupillary distance and astigmatism axial direction when being used to get the right lensses for one's eyeglasses, it is characterized in that on every simulation eyeglass (1), being decorated with cross centre line (2), the cross centre line intersection is cross central point (3), be the center of circle on the 360 degree circumference at distance central point 18mm place with per 5 degree with the cross central point be the lattice circumference branch case markings (4) of drawing, with cross centre line (2) be benchmark up and down, left and rightly respectively enlarge 5mm and be that lattice draw grid mark (5) with every 1mm.

2, the simulation eyeglass according to claim 1 cross central point (3) that it is characterized in that simulating on the eyeglass should be positioned on the geometric center point of this eyeglass.

3, simulation eyeglass according to claim 1 is characterized in that simulating eyeglass and can be made of materials such as transparent plastic sheet, glass sheet.Its shape can be divided symmetrical two.