JP2005338590A - Layout mark for progressive refractive power lens and spectacle lens - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a layout mark for a progressive refractive power lens with which numerals of a progression zone length and an inset quantity of a near part which are specified according to a prescription. <P>SOLUTION: The layout mark includes a distant part measurement area mark 7 showing a degree measurement position of a distant part and a near part measurement area mark 9 showing the inset quantity and progression zone length of the near part, and this layout mark comprises, as a composite figure mark, the distant part measurement area mark 7, a dot 2 indicating a prism measurement point, a horizontal reference line 3 indicating the horizontal direction of a lens, composite reference marks consisting of horizontal scale marks 61 at which the horizontal position of the near part measurement area mark is aimed and which are arranged at equal intervals in parallel to the horizontal reference line 3 and vertical scale marks 62 at which the vertical position of the near part measurement mark is aimed and which are arranged at equal intervals at right angles to the horizontal reference line, and a a near part measurement area mark 7 which is given the composite figure marks to read out the horizontal position and vertical position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a layout mark of a progressive-power spectacle lens and its spectacle lens.

  In general, a progressive-power spectacle lens is provided with a layout mark process after the manufacturing process on the lens manufacturing side, and marking that indicates an optical layout is performed on the lens. This is usually an erasable paint that clearly shows the distance power measurement position and near power measurement position by the lens meter on the convex surface of the lens, and various reference indices for frame frame processing. To be implemented.

  Therefore, the display method differs depending on the lens manufacturing side and the type of progressive power spectacle lens except for the predetermined items of the distance power measurement position and the near power measurement position defined by JIS, and various marking methods are implemented. Yes. In recent years, in particular, progressive-power spectacle lenses have emerged with various types of lenses based on various design philosophies that take into account ocular physiological functions. Layout marks have also been proposed.

  In a progressive-power spectacle lens, there is a lens having a specification that changes the inset amount (inset amount) of the near portion depending on the difference in the power and addition power of the distance portion. For such lenses, the near power measurement position also changes accordingly, so when using a circular mark that matches the near power measurement area, it is necessary to change the marking position for each lens. It's complicated. By making this an ellipse or an ellipse, it is possible to absorb the change in the position while indicating the approximate position of the region, and to make the mark common.

  FIG. 6 is a diagram showing an example of a layout mark of a conventional progressive-power spectacle lens. This layout mark indicates a left / right identification mark (R or L) 4, a crosshair line 22 indicating a fitting point serving as a reference when placing a frame, an alignment reference mark 23, and a place where the distance portion is measured. A circular distance measurement reference area mark 7, a near measurement reference area mark 9, and a position index 10 that is attached to the outside of the near measurement reference area mark 9 at regular intervals in the left-right direction. It is configured. The near portion measurement area mark 9 is a power on the near portion side for measuring the addition power in a progressive-power lens in which the amount of inset in the near portion changes depending on the distance power and the addition power. This is a place where the lens is measured, and has an oval or elliptical shape that is long in the left-right direction when the lens is worn.

This layout mark draws a near-field measurement reference area mark that displays a place where power is measured by a lens meter in a long oval shape or an oval shape in the left-right direction when the lens is worn, and the oval shape or Even if it is a progressive power lens with different inset amounts in the near part, by drawing a position index at regular intervals in the left and right direction outside the elliptical near part measurement reference area mark The frequency of the partial measurement reference area can be correctly measured (for example, see Patent Document 1).
JP 2003-131175 A

  However, it has been found that even if the layout mark described in Patent Document 1 is used, it is difficult to sufficiently meet various requests in recent years. In other words, this layout mark corresponds to a lens having a different inset amount in the near portion with a common layout pattern, and in order to ensure the function of the near portion measurement reference area mark 9. Therefore, it is necessary to separately inform the numerical information of the inset amount of the near portion related to this progressive-power spectacle lens, and when the numerical value of the inset amount of the near portion is unknown, there is a place for measuring the power by the lens meter. It can not be identified. Further, the numerical value of the inset amount of the near portion cannot be directly recognized from the layout mark. Furthermore, the numerical value of the progressive zone length cannot be directly recognized from the layout mark.

  The present invention solves such a problem, the progressive mark length of the progressive spectacle lens that can visually know the numerical value of the progressive zone length and the near-inset amount specified according to the prescription, An object of the present invention is to provide a spectacle lens having the layout mark.

  The layout mark of the progressive-power spectacle lens according to the invention of claim 1 is a layout mark provided on the lens surface of the progressive-power spectacle lens, and indicates the distance measurement region indicating the distance measurement position of the distance A near-site measurement area mark indicating the near-site frequency measurement position, the near-site inset amount and the progressive-zone length determined by the mark, and the optional near-set inset amount and progressive-zone length; , Including.

  The layout mark of the progressive-power spectacle lens according to the invention of claim 2 is characterized in that, in claim 1, at least the distance measurement area mark, the dot indicating the prism measurement point, the horizontal reference line indicating the horizontal direction of the lens, Horizontal scale marks arranged at equal intervals parallel to the horizontal reference line, and aiming at the vertical position of the near-site measurement area mark and perpendicular to the horizontal reference line Including a vertical scale mark arranged at equal intervals, and a distance measurement area mark, a dot, a horizontal reference line, a horizontal scale mark and a vertical scale mark, and a composite reference mark set in an arbitrary arrangement relationship in advance. A composite figure mark formed by the near-field measurement area mark provided with a mark whose horizontal position and vertical position can be read with respect to the composite reference mark. Characterized in that it is a click.

  The layout mark of the progressive-power spectacle lens according to the invention of claim 3 is the layout mark according to claim 2, wherein the horizontal scale mark is an aim indicating the inset amount of the near portion of the near portion measurement area mark. Features.

  According to a fourth aspect of the present invention, the layout mark of the progressive-power spectacle lens according to the second aspect is characterized in that the vertical scale mark is an aim indicating the progressive zone length of the near-field measurement area mark.

  The layout mark of the progressive-power spectacle lens according to the invention of claim 5 is the near-use mark when the near-field measurement area mark is arranged with respect to the composite reference mark in any of claims 2 to 4. It is a composite graphic mark from which the inset amount and progressive zone length of the near portion can be read from the partial measurement area mark.

  The layout mark of the progressive-power spectacle lens according to the invention of claim 6 is the layout mark according to any one of claims 2 to 5, wherein the position of the horizontal scale mark and / or the vertical scale mark overlaps with the near-site measurement area mark. It is an arbitrary position that must not be.

  A spectacle lens according to a seventh aspect of the invention is characterized in that the layout mark according to any one of the first to sixth aspects is applied.

  Since the layout mark of the present invention is configured as a composite graphic mark composed of two regions, a composite reference mark that is a fixed portion and a near portion measurement region mark that is a variable portion, the progressive band length and This can correspond to a layout mark applied to a progressive-power lens whose inset amount in the near portion is determined. Further, the measurement positions of the distance power and the near power can be visually identified from the direct layout mark, and the progressive zone length and the inset amount of the near portion can be visually read immediately. As a result, the manufacturing side can prevent mistakes such as lens differences in the lens manufacturing process, and can quickly check the lens. The customer side (glasses store) can visually confirm that the lens is an order lens and can easily know the frequency measurement position. This effect is a merit that can be shared between the manufacturing side and the customer side (glasses store).

  1-5 is explanatory drawing of the layout mark of the progressive-power eyeglass lens concerning embodiment of this invention. Hereinafter, the layout mark of the progressive-power eyeglass lens according to the embodiment will be described with reference to these drawings.

  The layout mark shown in FIG. 1 is obtained by paint-marking a layout mark for showing an optical layout on the convex surface of the progressive-power spectacle lens 1 for the right eye (R). The paint ink used for the layout mark is erasable, and the color is not particularly limited, but white or yellow is preferable. The progressive power eyeglass lens 1 has a distance power, a near power, an addition power, an outer diameter, and a lens refractive index which are arbitrary numerical values, but the inset amount in the near portion is 3 mm, and the progressive zone length is 14 mm. . The inset amount of the near portion is a horizontal distance from the dot (distance eye point position) 73 of the distance portion measurement area mark 7 to the horizontal reference line mark 91. Further, this progressive zone length is a vertical distance from the dot (distance eye point position) 73 of the distance measurement region mark 7 to the vertical reference line mark 92.

Next, each part of the layout mark will be described.
A dot 2 indicates a prism measurement point that is a reference point in the lens design of the progressive-power eyeglass lens 1 and substantially indicates a geometric center of the lens. In addition, horizontal reference lines 3 indicating geometric horizontal positions are provided on the left and right sides of the dots 2 by broken lines. There are left and right hidden marks 31 on the horizontal reference line 3. The vertical reference line marks 4a and 4b of about 2 mm indicating the geometric vertical position in the distance portion 6 and the near portion 8 are indicated by solid lines on the upper and lower sides, respectively. Further, above the left horizontal reference line 3, there is an index 4 of "R", which indicates that it is a right eye lens. In addition, below the “R” index 4, a character mark 5 of “HOYALAUX iD” is written, which is a product name of a lens manufacturer. In other words, the order lens can be confirmed by indicating the left and right of the lens and the lens product name.

  In the distance portion 6, a distance portion measurement region mark 7 that approximates an Ω-shape is displayed between the one vertical reference line mark 4 a and the dot 2. The distance measurement area mark 7 includes distance eye point height position marks 71a and 71b indicating the height position of the distance eye point made of a broken line, dots 73 indicating the distance eye point position, and a broken line. It is composed of an arc-shaped distance portion arc-shaped mark 72 having an arc shape drawn by a part of a circle. A region surrounded by the distance portion arcuate mark 72 indicates a distance power measurement location or position. The distance eye point height position marks 71a and 71b on the left and right sides of the dot 73 indicating the distance eye point position are on the same line. The distance eye point position 73 is the most important optical index of the spectacles that creates one optical system in alignment with the wearer's pupil when the lens is framed. In the present embodiment, the distance portion arc-shaped mark 72 is formed of a part of a circle having a diameter of 8 mm. In addition, the height position of the dot 73 indicating the distance eye point position is arranged 4 mm above the dot 2. The numerical value indicating the height position is arbitrarily determined depending on the design layout of the lens.

  In the near portion 8, a horizontal scale mark 61, a vertical scale mark 62, and a near portion measurement area mark 9 are written. The horizontal scale mark 61 is a position aim of the inset amount of the near portion that is parallel to the horizontal reference line 3 and arranged at regular intervals in the left-right direction. The vertical scale mark 62 is a position sighting of the progressive zone length that is perpendicular to the horizontal reference line 3 and arranged at regular intervals in the vertical direction.

  The details are shown in FIG. The scales 61a to 61g of the horizontal scale mark 61 are arranged at a pitch of 1 mm. In the case of a right eye (R) lens, 61a is the inset amount of the near portion, 0 mm, 61b is 1 mm in order from the left side, 61c represents 2 mm, 61d represents 3 mm, 61e represents 4 mm, 61f represents 5 mm, and 61g represents 6 mm. In the case of the left eye (L) lens, the reverse is true, 61g is 0mm inset, 61f is 1mm, 61e is 2mm, 61d is 3mm, 61c is 4mm, 61b is 5mm, 61a is 6mm in order from the right side. Represent. In either the right-eye (R) lens or the left-eye (L) lens, 3 mm 61d is shown with a longer scale than others to facilitate reading of the numerical values from the scale. The graduations from 62a to 62g of the vertical graduation mark 62 are arranged at a pitch of 1 mm, 62a is a progressive zone length of 10 mm, 62b is 11 mm, 62c is 12 mm, 62d is 13 mm, 62e is 14 mm, 62f is 62 mm in order from the top. 15 mm and 62 g represent 16 mm. This also shows 14 mm 62e with a longer scale than others in order to facilitate reading of numerical values from the scale. The position where the vertical scale mark 62 is arranged is not particularly limited. However, in consideration of the arrangement with the character mark 5, in the case of the right eye (R) lens, it is located on the right side of the horizontal scale mark 61 as shown in FIG. In the case of a left-eye (L) lens, it is preferably disposed on the left side of the horizontal scale mark 61 as shown in FIG.

FIG. 2 is a diagram showing a composite reference mark.
This composite reference mark includes a distance measurement area mark 7, a dot 2, a horizontal reference line 3, a horizontal scale mark 61 and a vertical scale mark 62. The distance between the distance measurement area mark 7 and the dot 2 is set in an arbitrary arrangement relationship in advance at the lens design stage.

  The arrangement of the marks of the composite reference mark in the present embodiment is as follows. The distance between the distance measurement area mark 7 and the dot 2 is 4 mm. The vertical reference line marks 4a and 4b, the dot 73, and the dot 2 are on the same vertical line. In the case of the right-eye (R) lens, they and 61a of the horizontal scale mark 61 are on the same vertical line. In the case of the left-eye (L) lens, 61 g of them and the horizontal scale mark 61 are on the same vertical line. The dot 2 and the horizontal reference line 3 are on the same horizontal line. The composite reference mark is a fixed portion that is painted with reference to the hidden mark 31 of the spectacle lens.

Next, the near portion measurement area mark 9 will be described with reference to FIG.
The near portion measurement area mark 9 has a circular shape with a diameter of 8 mm, which is equal to the distance portion measurement area mark 7, and is written between the vertical reference line mark 4b and the dot 2 which is the prism measurement point position (FIG. 1). The near portion measurement area mark 9 is composed of a circular mark 90 indicating the measurement position of the near power, a horizontal reference line mark 91 indicating the inset amount of the near portion, and a vertical reference line mark 92 indicating the progressive zone length. Has been. Here, the center of the circular mark 90 is the center of the near-use measurement region.

  The horizontal reference line mark 91 is written below the horizontal scale mark 61 and indicates the value of the inset amount of the near portion. The vertical reference line mark 92 is written on either the left or right side in the vicinity of the vertical scale mark 62 to indicate the value of the progressive zone length. The intersection of the extension lines of the horizontal reference line mark 91 and the vertical reference line mark 92 indicates the near eye point Ik. The arrangement of the near portion measurement area mark 9 in the present embodiment is such that the center point of the circular mark 90 is on the extension line of the vertical reference line mark 92, and the inset amount of the near portion and the horizontal position of the near measurement position Are consistent. When the progressive zone length is 14 mm, the near eye point Ik is on the circumference of the circular mark 90 (see FIG. 3A). When the progressive zone length is 11 mm, the near eye point Ik is 1 mm inside the circumference of the circular mark 90 (see FIG. 3B). As described above, since the inset amount, progressive band length, and near measurement position of the near portion are given independently, marks may be attached corresponding to the numerical values and positions. The near portion measurement area mark 9 is painted with the relative position determined by the inset amount of the near portion and the numerical value of the progressive band length, with the dot 73 being the distance eye point Ie as a reference point.

FIG. 5 is a diagram showing a layout mark for the left eye (L) in the present embodiment.
The inset amount of the near portion and the progressive band length of the layout mark are based on the positional relationship of the near portion measurement area mark 9, the horizontal scale mark 61, and the vertical scale mark 62. It can be seen that the progressive zone length is 11 mm.

Next, a method for checking a progressive-power eyeglass lens using the layout mark according to the above embodiment will be described.
First, based on the ordering conditions from the lens manufacturing factory, the lens bag is close to the lens power of the order received after the concave and convex surfaces are finally processed through sanding, polishing, and other surface treatment processes. A circular order lens will be sent with the inset amount and progressive zone length specified for the part. At the time of shipment, the layout mark shown in FIG. 1 or FIG. 5 is marked with white erasable paint on the convex surface side of the lens.

  In the spectacles store, first, the notation of the lens bag (distance power, near power, addition power, etc.) is checked to see if the lens is the same as the order contents. Next, the lens is taken out from the lens bag, and the left and right sides of the lens and the lens product name are confirmed. Next, the position of the near portion measurement area mark 9 is read from the horizontal scale mark 61 and the vertical scale mark 62, and the inset amount and progressive zone length of the near portion are confirmed. Next, the lens 1 is frequency-measured with a lens meter. The lens meter first checks the distance power. A lens is placed on the aperture portion of the lens meter, and is adjusted to the distance power measurement position in the distance portion measurement area mark 7 of the present embodiment. Then, the distance power is confirmed. Next, the addition power is checked.

  Depending on the specifications of the lens, the addition power may be measured by placing the lens meter opening on the convex surface side of the lens or by placing the lens meter on the concave surface side of the lens. The surface to which the aperture of the lens meter is applied is determined according to the lens specifications, and the aperture of the lens meter is aligned with the near-field power measurement position in the near-field measurement area mark 9. Then, the power on the near side is measured, and then the power on the distance side is measured in accordance with the distance measurement position in the distance measurement area mark 7 to obtain the difference in power between the two, and the addition power is calculated. To check. Next, edge processing is performed, and the processed lens with the edge is put into a predetermined spectacle frame. The fitting adjustment for wearing the frame is performed and the customer wears glasses. Then, the distance eye point and the near eye point are checked to see if they are optically laid out and completed as eyeglasses. The distance eye point causes the wearer to view at infinity and confirms whether the pupil position is at the position of the dot 73. The near eye point allows the wearer to view the near eye at the near work target distance and confirms that the line of sight passes through the center of the near area measurement region mark 9. After this check is finished, wipe the paint mark with ether.

It is the figure which showed an example of the layout mark of the progressive-power eyeglass lens concerning embodiment of this invention. It is the figure which showed the detail of the composite reference mark of a layout mark. It is the figure which showed the detail of the near part measurement area | region mark of a layout mark. It is the figure which showed the detail of the horizontal scale mark and the vertical scale mark. It is the figure which showed an example of the layout mark of the progressive-power eyeglass lens for left eyes. It is the figure which showed the conventional layout mark.

Explanation of symbols

1 Progressive power spectacle lens 2 Dot (Prism measurement point position)
3 Horizontal reference line 4a, 4b Vertical reference line 6 Distance portion 7 Distance portion measurement area mark 8 Near portion 9 Near portion measurement area mark 31 Hidden mark position 61 Horizontal scale mark 62 Vertical scale mark 73 dots (Distance eye) point)
90 Circular mark 91 Horizontal reference line mark 92 Vertical reference line mark Ie Distance eye point Ik Near eye point

Claims (7)

A layout mark applied to the surface of a progressive-power spectacle lens,
Distance measurement area mark indicating the frequency measurement position of the distance portion,
A near portion measurement area mark indicating the frequency measurement position of the near portion determined by the inset amount and the progressive zone length of an arbitrary near portion, the inset amount and the progressive zone length of the near portion, and
A layout mark for a progressive-power spectacle lens, characterized by comprising: The layout mark according to claim 1,
At least the distance measurement area mark, the dot indicating the prism measurement point, the horizontal reference line indicating the horizontal direction of the lens, and the horizontal position of the near area measurement area mark are parallel and parallel to the horizontal reference line A horizontal scale mark disposed on the distance measurement area mark, and a vertical scale mark positioned at equal intervals perpendicular to the horizontal reference line, A composite reference mark in which dots, horizontal reference lines, horizontal scale marks and vertical scale marks are set in an arbitrary arrangement relationship in advance,
The near-field measurement area mark to which the horizontal position and the vertical position can be read with respect to the composite reference mark,
A progressive-power eyeglass lens layout mark, characterized in that it is a composite graphic mark composed of The layout mark according to claim 2,
The horizontal scale mark is a sighting indicating an inset amount of a near portion of the near portion measurement area mark, and a progressive-power eyeglass lens layout mark. The layout mark according to claim 2,
The vertical graduation mark is a sighting indicating the progressive zone length of the near-field measurement area mark, the progressive-power eyeglass lens layout mark. The layout mark according to any one of claims 2 to 4,
When the near portion measurement area mark is arranged with respect to the composite reference mark, the near portion measurement area mark is a composite figure mark from which the near portion inset amount and progressive band length can be read. Characteristic layout mark of progressive-power spectacle lens. The layout mark according to any one of claims 2 to 5,
A layout mark for a progressive-power eyeglass lens, wherein the position of the horizontal scale mark and / or the vertical scale mark is an arbitrary position that does not overlap with the near-field measurement area mark.   A spectacle lens, comprising the layout mark according to claim 1.

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