CA2265186C - Methods and apparatuses for fitting eyewear - Google Patents
Methods and apparatuses for fitting eyewear Download PDFInfo
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- CA2265186C CA2265186C CA002265186A CA2265186A CA2265186C CA 2265186 C CA2265186 C CA 2265186C CA 002265186 A CA002265186 A CA 002265186A CA 2265186 A CA2265186 A CA 2265186A CA 2265186 C CA2265186 C CA 2265186C
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Abstract
Methods are provided for fitting an eyeglass frame to a wearer. The methods include the steps of providing frames which have been classified into predetermined temple to temple size ranges based on the temple to temple frame sizes of the frames. The wearer's temple to temple head size is measured using a device which indicates at least one temple to temple size range as corresponding to the wearer. Eyeglass frames are fitted to the wearer selected from the frames which fall within the temple to temple size ranges corresponding to the wearer. There is also provided a frame measurement platform for measuring the perpendicular distance between the two temples of an open eyeglass frame, and a method for using such a device. The platform includes a support, two spaced-apart reference members which are moveable with respect to each other, and means for measuring.
The reference members define respective temple measuring planes which are substantially perpendicular to a reference measuring plane defined by the support. The measuring means is used to measure the perpendicular distance between temples of an open eyeglass frame.
The reference members define respective temple measuring planes which are substantially perpendicular to a reference measuring plane defined by the support. The measuring means is used to measure the perpendicular distance between temples of an open eyeglass frame.
Description
METHOD AND APPARATUSES FOR FITTING EYEWEAR
TECHNICAL FIELD
This is a divisional application divided from Canadian Patent Application Serial No. 2,124,346.
s The present invention relates generally to methods and apparatuses for use in fitting eyewear, and is particularly directed to methods and apparatuses for fitting an eyeglass frame for a person who wears or is going to wear eyewear (herein referred to as a "wearer") based on an objective to evaluation of physical attributes of the wearer and the frames.
The invention will be specifically disclosed in connection with a method in which the stock of eyeglass frame offered for selection to the wearer has been identified as falling within predetermined size ranges, and the wearer's temple to temple 15 head size is determined so as to identify frames from the corresponding size range. The invention will be further disclosed in connection with a device for measuring the temple to temple head size of a wearer. The invention will also be specifically disclosed in connection with a frame measuring 2o platform that facilitates the measurement of the perpendicular distance between the temples pieces of an eyeglass frame.
BACKGROUND OF THE INVENTION
Selection of properly sized eyeglasses is one of the most difficult problems in fitting eyeglasses to a wearer. The 2s current method for selecting eyeglass frames is a subjective approach wherein the selection is based primarily on cosmetic considerations rather that proper physical fit. Even when physical fit is considered in the selection of frames, the la criteria is subjective and depends very much upon the skill of the fitter. The typical criteria for judging physical fit relies on such subjective consideration as face shape, length of face and facial balance. Until the invention of the present s method, there has been no objective way to ensure the proper physical fit of frames.
The difficulty in fitting frames is exacerbated by the large number of different frames which are available. The wearer is typically unskilled in judging which frames being offered for sale are the correct size for his or her head, and consequentially is unable to limit his or her search to those frames which are the proper physical size. Without such a limitation on the wearer's search, the wearer will typically select frames based only on cosmetic considerations and frequently selects frames which appear aesthetically pleasing as displayed but which are not the proper size fe~
°~e wearer's heaa. Once the wearer has made such a selection of improperly sized frames. ~.~ is typically awkward and difficult for the fitter to persuade the wearer that the selected frames are not the right size. An objective system approach is more likely to be accepted by the wearer, than statements about size made only by the fitter.
There are different systems for identifying various measurements of frames. One such well known system widely used is the "boxing system" , 1 S in which rectangular boxes are modeled about each lens opening of the frame. The horizontal measure of this box is referred to as the eye size, and is denoted by the letter "A" . The distance between each box is known as the distance between lenses or bridge size, and designated by the letters DBL.
Manufacturers of frames which are sized according to the boxing system typically mark the frame using the format: A O DBL. For example, such a marking might appear as: 52 ~ 22, meaning that the eye size of the frame is 52 mm and the distance between the lenses is 22 mm.
Generally, the eye size measurement for different sizes of frames of a given style change in two millimeter increments, such as 50 mm, 52 mm, 54 mm, etc.
Although the boxing system provides an objective standard for sizing the lens opening and bridge size, it does not provide any indication of the overall width of the frame, because there is an overhanging portion on either side of the frame extending beyond the outer edge of the boxing system.
The boxing system does not indicate the spacing between the temples of the frames which is important to the selection of properly fitting frames. The boxing system also does not provide a way to distinguish between frame sizes. For example, the distance between the outer lens edge for 54 D 16 is the same as for a 52 ~ 20. The boxing system does not provide a way to group the fitting s frames according to their temple to temple widths.
Thus, there is a need for methods for use in fitting frames which are based on objective criteria and which are easily understood. There is also a need for apparatuses for us in practicing such methods.
1o SUMMARY OF THE INVENTION
According to the present invention, there is provided a device for measuring the perpendicular distance between the two temples of an open eyeglass frame, comprising: (a) a support defining a reference measuring plane; (b) a first reference 15 member carried by said support, said first reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane; (c) a second reference member carried by said support, said second reference member including a reference 2o surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other;
2s (d) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (e) measuring means registering with said first and second reference members for measuring the perpendicular distance between said temples when said temples are placed in contact with said respective reference surfaces of said first and second reference members.
In one embodiment of the invention, the measuring means include a measuring scale which has two measuring tips that are moveable with respect to each other.
According to a further embodiment of the invention, the measuring scale includes indicator means for indicating on the measuring scale a location corresponding to the distance between the measuring tips. The scale also includes a plurality of designations which identify temple to temple size ranges, the designations being located such that the indicator means indicate the designation of the temple to temple size range within which the distance between the measuring tips falls .
In a further embodiment of the invention, the first and second reference members include means for receiving and supporting the measuring means.
In a further embodiment of the invention, at least one slot is formed through each reference member for receiving the measuring means.
According to a further embodiment of the invention, the slots are substantially parallel to the reference measuring plane.
Also according to the present invention, there is provided a device for measuring the perpendicular distance between the two temples of an open eyeglass frame, comprising:
(a) a support including (i) a base; (ii) an upper portion overlying said support portion, said upper portion defining a reference measuring plane; and (iii) an intermediate portion interposed between said base and said upper portion; (b) first and second s reference members carried by said support, each said first and second reference member respectively including a base portion and a reference surface extending from said base portion, said reference surface defining a temple measuring plane which is substantially perpendicular to said reference measuring plane, to said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other, each of said respective reference surfaces having at least one respective scale receiving slot formed therethrough; (c) said support being i5 adapted to support and retain said respective base portion of at least one of said first and second reference members;
(d) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is 2o disposed adjacent a respective reference surface of said first and second reference members; and (e) a measuring scale having first and second measuring tips which are moveable with respect to each other, said scale being adapted to the be received by each of said at least one respective scale receiving slot 2s whereby the perpendicular distance between said temples may be measured when said temples are placed in contact with said respective reference surfaces of said first and second reference members.
In one embodiment of the present invention, the upper portion of the support is non-parallel to the base.
According to a further embodiment of the present invention, the angle between the upper portion and the base is s acute.
In yet another embodiment of the invention, the scale receiving slot is substantially parallel to the reference measuring plane.
In accordance to another embodiment of the invention, the io support includes a retaining portion extending from the base spaced apart from the second portion, and cooperating with the base and the upper portion to retain the base portion of at least one of the first and second reference members.
According to a further embodiment of the present i5 invention, at least one of the first and second reference members includes a slot formed therethrough which slidably receives a portion of the upper portion of the support.
Also according to the present invention there is provided a method of determining the temple to temple frame size of an 2o eyeglass frame, comprising the steps of: (a) providing means for measuring the temple to temple frame size of the eyeglass frame, said means including: (i) a support defining a reference measuring plane; (ii) a first reference member carried by said support, said first reference member including a reference 2s surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane;
(iii) a second reference member carried by said support, said second reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other; (iv) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (v) measuring means for measuring the perpendicular distance between said temples when said temples are placed in contact with said respective reference surfaces of said first and second reference members; and (b) registering said measuring means with said first and second reference members and measuring the temple to temple frame size of the eyeglass frame.
Also according to the present invention there is provided a method of determining the temple to temple frame size of an eyeglass frame, comprising the steps of: (a) providing means for measuring the temple to temple frame size of the eyeglass frame, said means including: (i) a support including a base an upper portion overlying said support portion, said upper portion defining a reference measuring plane; and an intermediate portion interposed between said base and upper portion; (ii) a first and second reference members carried by said support, each said first and second reference member respectively including a base portion and a reference surface extending from said base portion, said reference surface defining a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other, each of said respective reference surfaces having at least one respective scale receiving slot s formed therethrough; (iii) said support being adapted to support and retain said respective base portion of at least one of said first and second reference members; (iv) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, io at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (v) a measuring scale having first and second measuring tips which are moveable with respect to each other, said scale being adapted to be received by each 15 of said at least one respective scale receiving slot whereby the perpendicular distance between said temples may be measured when said temples are placed in contact with said respective reference surface of said first and second reference members;
and (b) measuring the temple to temple frame size of the 2o eyeglass frame.
Advantages of the present invention will become apparent to those skilled in this art from the following description wherein there is shown and described a preferred embodiment of this invention, simply by way of illustration, of one of the 2s best modes contemplated for carrying out the invention. As will be realized, the invention is capable of other different embodiments, and its several details are capable of 8a modification in various, obvious aspects all without departingfrom the invention. Accordingly, the drawings and descriptions will be regarded as illustrative in nature and not as restrictive.
BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying drawings incorporated in and forming a part of the specification illustrate several embodiments of the present invention and together with the description serve to explain the principles of the invention. In the drawings:
to FIG. 1 is a front elevational view of a wearer's head and face, generally indicating the location at which the temple to temple head size is measured.
FIG. 2 is a diagrammatic side view of a wearer's head and face, showing the general area at which the temple to temple i5 head size measurement is taken.
FIG. 3 is a diagrammatic plan view of a typical eyeglass frame.
FIG. 4 is a side view of a caliper configured for taking the temple to temple head size measurement of the wearer.
2o FIG. 5 is an enlarged fragmentary diagrammatic view of the indicator and scale of the caliper of FIG. 4.
FIG. 6 is an enlarged fragmentary diagrammatic view of the bottom of the proximal end of the moveable arm of the caliper of FIG. 4.
25 FIG. 7 is an enlarged fragmentary diagrammatic view of the scale of FIG. 4 showing the scale as having non-continuous temple to temple size ranges.
FIG. 8 is a perspective view of one embodiment of a frame 8b measurement platform in accordance with the present invention, with an open eyeglass frame shown in the measuring position.
FIG. 9 is a cross-sectional view taken through the middle of the frame measurement platform of FIG. 8 in the direction s toward the left reference member.
FIGS. 10 and 11 are front and side views, respectively, of the left reference member illustrated in FIG. 8.
FIG. 12 is a plane view of the measuring scale illustrated in FIG. 8.
io Reference will now be made in detail to the present preferred embodiment of the invention, an example of which is illustrated in the accompanying drawings.
DETAILED DESCRIPTION OF PREFERRED EMBODIIVVIENTS
Referring now to the drawings, FIG. 1 shows a diagrammatic front view of a wearer's head and face. Arrows E and F point generally to respective positions on either side of the wearer's head, near the temples.
The distance between these two locations is referred to herein and in the claims as the temple to temple head size of the wearer. FIG. 2 illustrates a side view of the wearer's head, and identifies region 6 near the ear. Region 6, located on both sides of the head, is the preferred area of measurement in which the temple to temple head size of the wearer is measured. Arrows E and F (FIG. 1 ) each point to respective positions within the preferred areas of measurement, i.e. region 6, on respective sides of the head. It is noted that in other embodiments the exact shape and location of the preferred area of measurement may be different from that shown.
FIG. 3 is a diagrammatic plan view of a typical eyeglass frame, generally indicated at 8, having lens openings 10 and 12 separated by bridge 14. Lens openings 10 and 12 generally identify a plane 16 which is intended to be equidistant from the left and right eye when the wearer is wearing the frame.
Extending from the outside of each lens opening 10 and 12 are respective overhanging portions 18 and 20. As shown in FIG. 3, overhanging portions 18 and 20 may extend rearwardly from plane 16. It is noted that the actual configuration of the overhanging portions depends upon the style and construction of the frames.
Temple pieces 26 and 28 are pivotably carried by frame 8 through respective hinges 22 and 24. As illustrated in FIG. 3, temple pieces 26 and 28 extend rearwardly from plane 16, and are illustrated as being generally parallel and perpendicular to plane 16. It is noted that when frames 8 are worn by the wearer, the relative orientation between temple piece 26, temple piece 28 and lens openings 10 and 12 depend upon the wearer's head and the - placement of frame 8 thereon.
According to the teachings of the present invention, frame 8 has a temple to temple frame size which is defined to be the distance between the two temple pieces 26 and 28 when they are parallel to each other and perpendicular to plane 16. This distance is shown as dimension G in FIG.
3. The temple.to temple frame size of a particular frame may be determined by measuring the distance between two corresponding points on the temple pieces, as close to the hinges as practically possible. The temple to temple frame size is determined without considering cosmetic constructions of the temple pieces, such as diagrammatically illustrated by phantom lines 30 in 10 FIG. 3. The phantom lines 30 represent areas where the temple pieces may have an increased thickness, due to style or construction, in areas which do not directly affect the fit of the glasses. The temple to temple frame size measurement is taken as close as practically possible to the hinges to minimize errors which might occur from the temple pieces being non-parallel, non-perpendicular to plane 16, such as might occur when spring-loaded hinges are incorporated integrally in the temple pieces.
In practicing the teachings of the present invention, which is to use the temple to temple frame size of the frame and the temple to temple head size of the wearer to fit a frame to the wearer, it is necessary to determine the temple to temple frame size of each frame of the stock of frames from which the wearer will select his or her frame. This may be done by actually measuring the temple to temple frame size of each frame of the stock of frames. Alternatively, a less time consuming way is to measure the temple to temple frame size for each particular eye and bridge size of each frame style. An apparatus is described below for accurately measuring the temple to temple frame size of a frame.
It is noted that, because of manufacturing tolerances, the temple to temple frame size for frames having the same eye and bridge size and style may vary. In such case, it may be necessary to measure several frames of the same eye and bridge size and style to determine a statistical temple to temple frame size, such as by averaging. Statistical determination may WO 9/13447 PCT/US92/1133b always be used: However, if the variance from frame to frame of a particular eye and bridge size and style is too great, it may be preferable to measure each particular frame, or to require the manufacture of those frames to reduce the tolerance range of the temple to temple frame size.
In order to fit frames efficiently based on the wearer's head size, it is preferable to establish temple to temple size ranges and to group the frames according to these size ranges. The span of each temple to temple size range between these limits may be based on a statistical sampling of the temple to temple frame sizes of the available frames, or may be selected arbitrarily.
The temple to temple size ranges may have uniform spans. The temple to temple size ranges may be non-overlapping and continuous with each other, in that the upper limit of one size range is the same as the lower limit of the next size range, except for the extreme upper and lower limits of the entire range covered by all of the temple to temple size ranges. The method of the present invention may also be practiced utilizing size ranges which have non-uniform spans, which are not continuous, or which are overlapping. An important aspect of practicing the present invention is that the frames of the stock of frames are identified according to predetermined temple to temple size ranges.
According to one embodiment of the invention, the temple to temple size ranges are continuous and have spans of 4 millimeters. The ranges can be located in numerous ways. For example, the total range of temple to temple frame sizes of most adult-sized frames is generally from 120 millimeters to 160 millimeters. In one embodiment, the temple to temple size ranges are set up with 4 millimeter spans as 119.5mm-123.5mm, 123.5mm-127.5mm, 127.5mm-131.5mm, etc. , throughout the total range.
The total range of temple to temple frame sizes of most children's frames is generally from 108 millimeters to 130 millimeters. The temple to temple size ranges are set up with 4 millimeter spans, as 107.5mm-111.5mm, 111.5mm-115.5mm, 115.5mm-119.5mm, etc., over the total range.
According to another embodiment of the invention, consideration is given to the degree of accuracy of the measurement of the temple to temple sizes of the frames. In this embodiment, each frame is measured to the nearest millimeter (i.e., measurements above one half millimeter are rounded up). The temple to temple size ranges have spans of 3 millimeters, and are spaced apart by 1 millimeter. This results in non-continuous ranges having range to range spans of 1 millimeter, while the temple to temple size range is only 3 millimeters. In this embodiment, since the respective upper limit and lower limit of sequential temple to temple size ranges are different, there is no possibility that a temple to temple frame size measurement will be equal to a limit shared by the size ranges. As a practical matter, though, the rounding of the temple to temple frame size measurement to the nearest millimeter results in each non-continuous, 3 millimeter span size range encompassing temple to temple frame size measurements covering almost 4 millimeters. These ranges can be located numerous ways. One such way is that the respective lower limits of these ranges are divisible by 4 millimeters, e.g. 120mm-123mm, 124mm-127mm, 128mm-131mm, etc.
The rounding of the temple to temple frame sizes to the nearest millimeter when used with the continuous ranges described above, precludes a temple to temple frame size from falling exactly at the respective upper and lower limits of two sequential temple to temple size ranges. Other rounding criteria may be used.
Once a plurality of temple to temple size ranges have been determined, each of the frames is identified as having a respective temple to temple frame size which falls within one of the plurality of temple to temple size ranges. To so identify these frames, each temple to temple size range is assigned a respective designation which is indicative of that range. Each frame is associated with the respective designation assigned to the temple to temple size range within which the respective frame falls. Although many different designations may be used, according to the preferred embodiment, the designation is a group of colors, each of which designates a particular temple to temple size range. Each frame is associated with the color WO 9s/13447 PCT/USg2/1133b designation by affixing to the frame a tag which includes the appropriate size range color. As used herein, a tag may be adhered to or hung from the object to which it is affixed. In the preferred embodiment, color coded stickers are attached to the frames, such as being located on the frames themselves, or on a demonstration lens carried by the frames. This embodiment of the invention allows the frames to be located randomly without respect to their size ranges, since each frame carries its own size designation. Alternatively, the frames could be grouped according to size ranges, such as in display areas, for example on walls or in with the display trays, carrying the size range designation. Designations other than color may also be used, such as the specific numerical range of the temple to temple size range, geometric shapes, or any other designation sufficient to differentiate the temple to temple size ranges.
Once the frames have been identified as having a temple to temple frame size that falls within one of the predetermined temple to temple size ranges, the next step is to identify which of the predetermined temple to temple size ranges corresponds to the wearer. This is done by measuring the temple to temple head size of the wearer. The final step of this method of fitting eyeglass frames to a wearer is to fit an eyeglass frame selected from at least one temple to temple size range which was identified as corresponding to the wearer. It is noted that in some situations, optical and cosmetic considerations may override the present method of frame selection.
In order to measure the temple to temple head size of the wearer, and use this information to identify the temple to temple size range corresponding to the wearer, it is preferable to use a measuring device to measure the temple to temple head size which automatically indicates any corresponding temple to temple size range or ranges. Such a measuring device may be any apparatus capable of measuring the distance between two points on a solid object, and capable of relating that distance to the predetermined temple to temple size ranges or ranges. According to the teachings of this invention, an apparatus is provided for measuring the temple to temple head size of the wearer. Referring now to FIG. 4, there is illustrated caliper 32 which includes two spaced-apart arms 34 and 36 which are moveable relative to each other. Each arm 34 and 36 includes respective distal end portions 38 and 40 which curve inwardly toward the other arm, terminating in respective measuring tips 42 and 44. This conFguration provides a limited area of contact for accuracy. Arms 34 and 36 are sufficiently long to allow measuring tips 42 and 44 to be located adjacent the wearer's head to measure the temple to temple head size. It is noted that other configurations could be used, such as arms 34 and 36 being straight, rather than curved. Alternatively this could be done by any electronic measuring system adapted to indicate the corresponding temple to temple size range.
Arm.36 includes longitudinal member 46 connected to the proximal end of arm 34, which carries scale 48. Arm 36 includes end 50 which is disposed about and slidably carried by member 46. Referring also to FIG.
TECHNICAL FIELD
This is a divisional application divided from Canadian Patent Application Serial No. 2,124,346.
s The present invention relates generally to methods and apparatuses for use in fitting eyewear, and is particularly directed to methods and apparatuses for fitting an eyeglass frame for a person who wears or is going to wear eyewear (herein referred to as a "wearer") based on an objective to evaluation of physical attributes of the wearer and the frames.
The invention will be specifically disclosed in connection with a method in which the stock of eyeglass frame offered for selection to the wearer has been identified as falling within predetermined size ranges, and the wearer's temple to temple 15 head size is determined so as to identify frames from the corresponding size range. The invention will be further disclosed in connection with a device for measuring the temple to temple head size of a wearer. The invention will also be specifically disclosed in connection with a frame measuring 2o platform that facilitates the measurement of the perpendicular distance between the temples pieces of an eyeglass frame.
BACKGROUND OF THE INVENTION
Selection of properly sized eyeglasses is one of the most difficult problems in fitting eyeglasses to a wearer. The 2s current method for selecting eyeglass frames is a subjective approach wherein the selection is based primarily on cosmetic considerations rather that proper physical fit. Even when physical fit is considered in the selection of frames, the la criteria is subjective and depends very much upon the skill of the fitter. The typical criteria for judging physical fit relies on such subjective consideration as face shape, length of face and facial balance. Until the invention of the present s method, there has been no objective way to ensure the proper physical fit of frames.
The difficulty in fitting frames is exacerbated by the large number of different frames which are available. The wearer is typically unskilled in judging which frames being offered for sale are the correct size for his or her head, and consequentially is unable to limit his or her search to those frames which are the proper physical size. Without such a limitation on the wearer's search, the wearer will typically select frames based only on cosmetic considerations and frequently selects frames which appear aesthetically pleasing as displayed but which are not the proper size fe~
°~e wearer's heaa. Once the wearer has made such a selection of improperly sized frames. ~.~ is typically awkward and difficult for the fitter to persuade the wearer that the selected frames are not the right size. An objective system approach is more likely to be accepted by the wearer, than statements about size made only by the fitter.
There are different systems for identifying various measurements of frames. One such well known system widely used is the "boxing system" , 1 S in which rectangular boxes are modeled about each lens opening of the frame. The horizontal measure of this box is referred to as the eye size, and is denoted by the letter "A" . The distance between each box is known as the distance between lenses or bridge size, and designated by the letters DBL.
Manufacturers of frames which are sized according to the boxing system typically mark the frame using the format: A O DBL. For example, such a marking might appear as: 52 ~ 22, meaning that the eye size of the frame is 52 mm and the distance between the lenses is 22 mm.
Generally, the eye size measurement for different sizes of frames of a given style change in two millimeter increments, such as 50 mm, 52 mm, 54 mm, etc.
Although the boxing system provides an objective standard for sizing the lens opening and bridge size, it does not provide any indication of the overall width of the frame, because there is an overhanging portion on either side of the frame extending beyond the outer edge of the boxing system.
The boxing system does not indicate the spacing between the temples of the frames which is important to the selection of properly fitting frames. The boxing system also does not provide a way to distinguish between frame sizes. For example, the distance between the outer lens edge for 54 D 16 is the same as for a 52 ~ 20. The boxing system does not provide a way to group the fitting s frames according to their temple to temple widths.
Thus, there is a need for methods for use in fitting frames which are based on objective criteria and which are easily understood. There is also a need for apparatuses for us in practicing such methods.
1o SUMMARY OF THE INVENTION
According to the present invention, there is provided a device for measuring the perpendicular distance between the two temples of an open eyeglass frame, comprising: (a) a support defining a reference measuring plane; (b) a first reference 15 member carried by said support, said first reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane; (c) a second reference member carried by said support, said second reference member including a reference 2o surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other;
2s (d) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (e) measuring means registering with said first and second reference members for measuring the perpendicular distance between said temples when said temples are placed in contact with said respective reference surfaces of said first and second reference members.
In one embodiment of the invention, the measuring means include a measuring scale which has two measuring tips that are moveable with respect to each other.
According to a further embodiment of the invention, the measuring scale includes indicator means for indicating on the measuring scale a location corresponding to the distance between the measuring tips. The scale also includes a plurality of designations which identify temple to temple size ranges, the designations being located such that the indicator means indicate the designation of the temple to temple size range within which the distance between the measuring tips falls .
In a further embodiment of the invention, the first and second reference members include means for receiving and supporting the measuring means.
In a further embodiment of the invention, at least one slot is formed through each reference member for receiving the measuring means.
According to a further embodiment of the invention, the slots are substantially parallel to the reference measuring plane.
Also according to the present invention, there is provided a device for measuring the perpendicular distance between the two temples of an open eyeglass frame, comprising:
(a) a support including (i) a base; (ii) an upper portion overlying said support portion, said upper portion defining a reference measuring plane; and (iii) an intermediate portion interposed between said base and said upper portion; (b) first and second s reference members carried by said support, each said first and second reference member respectively including a base portion and a reference surface extending from said base portion, said reference surface defining a temple measuring plane which is substantially perpendicular to said reference measuring plane, to said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other, each of said respective reference surfaces having at least one respective scale receiving slot formed therethrough; (c) said support being i5 adapted to support and retain said respective base portion of at least one of said first and second reference members;
(d) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is 2o disposed adjacent a respective reference surface of said first and second reference members; and (e) a measuring scale having first and second measuring tips which are moveable with respect to each other, said scale being adapted to the be received by each of said at least one respective scale receiving slot 2s whereby the perpendicular distance between said temples may be measured when said temples are placed in contact with said respective reference surfaces of said first and second reference members.
In one embodiment of the present invention, the upper portion of the support is non-parallel to the base.
According to a further embodiment of the present invention, the angle between the upper portion and the base is s acute.
In yet another embodiment of the invention, the scale receiving slot is substantially parallel to the reference measuring plane.
In accordance to another embodiment of the invention, the io support includes a retaining portion extending from the base spaced apart from the second portion, and cooperating with the base and the upper portion to retain the base portion of at least one of the first and second reference members.
According to a further embodiment of the present i5 invention, at least one of the first and second reference members includes a slot formed therethrough which slidably receives a portion of the upper portion of the support.
Also according to the present invention there is provided a method of determining the temple to temple frame size of an 2o eyeglass frame, comprising the steps of: (a) providing means for measuring the temple to temple frame size of the eyeglass frame, said means including: (i) a support defining a reference measuring plane; (ii) a first reference member carried by said support, said first reference member including a reference 2s surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane;
(iii) a second reference member carried by said support, said second reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other; (iv) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (v) measuring means for measuring the perpendicular distance between said temples when said temples are placed in contact with said respective reference surfaces of said first and second reference members; and (b) registering said measuring means with said first and second reference members and measuring the temple to temple frame size of the eyeglass frame.
Also according to the present invention there is provided a method of determining the temple to temple frame size of an eyeglass frame, comprising the steps of: (a) providing means for measuring the temple to temple frame size of the eyeglass frame, said means including: (i) a support including a base an upper portion overlying said support portion, said upper portion defining a reference measuring plane; and an intermediate portion interposed between said base and upper portion; (ii) a first and second reference members carried by said support, each said first and second reference member respectively including a base portion and a reference surface extending from said base portion, said reference surface defining a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other, each of said respective reference surfaces having at least one respective scale receiving slot s formed therethrough; (iii) said support being adapted to support and retain said respective base portion of at least one of said first and second reference members; (iv) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, io at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (v) a measuring scale having first and second measuring tips which are moveable with respect to each other, said scale being adapted to be received by each 15 of said at least one respective scale receiving slot whereby the perpendicular distance between said temples may be measured when said temples are placed in contact with said respective reference surface of said first and second reference members;
and (b) measuring the temple to temple frame size of the 2o eyeglass frame.
Advantages of the present invention will become apparent to those skilled in this art from the following description wherein there is shown and described a preferred embodiment of this invention, simply by way of illustration, of one of the 2s best modes contemplated for carrying out the invention. As will be realized, the invention is capable of other different embodiments, and its several details are capable of 8a modification in various, obvious aspects all without departingfrom the invention. Accordingly, the drawings and descriptions will be regarded as illustrative in nature and not as restrictive.
BRIEF DESCRIPTION OF THE DRAWINGS
The accompanying drawings incorporated in and forming a part of the specification illustrate several embodiments of the present invention and together with the description serve to explain the principles of the invention. In the drawings:
to FIG. 1 is a front elevational view of a wearer's head and face, generally indicating the location at which the temple to temple head size is measured.
FIG. 2 is a diagrammatic side view of a wearer's head and face, showing the general area at which the temple to temple i5 head size measurement is taken.
FIG. 3 is a diagrammatic plan view of a typical eyeglass frame.
FIG. 4 is a side view of a caliper configured for taking the temple to temple head size measurement of the wearer.
2o FIG. 5 is an enlarged fragmentary diagrammatic view of the indicator and scale of the caliper of FIG. 4.
FIG. 6 is an enlarged fragmentary diagrammatic view of the bottom of the proximal end of the moveable arm of the caliper of FIG. 4.
25 FIG. 7 is an enlarged fragmentary diagrammatic view of the scale of FIG. 4 showing the scale as having non-continuous temple to temple size ranges.
FIG. 8 is a perspective view of one embodiment of a frame 8b measurement platform in accordance with the present invention, with an open eyeglass frame shown in the measuring position.
FIG. 9 is a cross-sectional view taken through the middle of the frame measurement platform of FIG. 8 in the direction s toward the left reference member.
FIGS. 10 and 11 are front and side views, respectively, of the left reference member illustrated in FIG. 8.
FIG. 12 is a plane view of the measuring scale illustrated in FIG. 8.
io Reference will now be made in detail to the present preferred embodiment of the invention, an example of which is illustrated in the accompanying drawings.
DETAILED DESCRIPTION OF PREFERRED EMBODIIVVIENTS
Referring now to the drawings, FIG. 1 shows a diagrammatic front view of a wearer's head and face. Arrows E and F point generally to respective positions on either side of the wearer's head, near the temples.
The distance between these two locations is referred to herein and in the claims as the temple to temple head size of the wearer. FIG. 2 illustrates a side view of the wearer's head, and identifies region 6 near the ear. Region 6, located on both sides of the head, is the preferred area of measurement in which the temple to temple head size of the wearer is measured. Arrows E and F (FIG. 1 ) each point to respective positions within the preferred areas of measurement, i.e. region 6, on respective sides of the head. It is noted that in other embodiments the exact shape and location of the preferred area of measurement may be different from that shown.
FIG. 3 is a diagrammatic plan view of a typical eyeglass frame, generally indicated at 8, having lens openings 10 and 12 separated by bridge 14. Lens openings 10 and 12 generally identify a plane 16 which is intended to be equidistant from the left and right eye when the wearer is wearing the frame.
Extending from the outside of each lens opening 10 and 12 are respective overhanging portions 18 and 20. As shown in FIG. 3, overhanging portions 18 and 20 may extend rearwardly from plane 16. It is noted that the actual configuration of the overhanging portions depends upon the style and construction of the frames.
Temple pieces 26 and 28 are pivotably carried by frame 8 through respective hinges 22 and 24. As illustrated in FIG. 3, temple pieces 26 and 28 extend rearwardly from plane 16, and are illustrated as being generally parallel and perpendicular to plane 16. It is noted that when frames 8 are worn by the wearer, the relative orientation between temple piece 26, temple piece 28 and lens openings 10 and 12 depend upon the wearer's head and the - placement of frame 8 thereon.
According to the teachings of the present invention, frame 8 has a temple to temple frame size which is defined to be the distance between the two temple pieces 26 and 28 when they are parallel to each other and perpendicular to plane 16. This distance is shown as dimension G in FIG.
3. The temple.to temple frame size of a particular frame may be determined by measuring the distance between two corresponding points on the temple pieces, as close to the hinges as practically possible. The temple to temple frame size is determined without considering cosmetic constructions of the temple pieces, such as diagrammatically illustrated by phantom lines 30 in 10 FIG. 3. The phantom lines 30 represent areas where the temple pieces may have an increased thickness, due to style or construction, in areas which do not directly affect the fit of the glasses. The temple to temple frame size measurement is taken as close as practically possible to the hinges to minimize errors which might occur from the temple pieces being non-parallel, non-perpendicular to plane 16, such as might occur when spring-loaded hinges are incorporated integrally in the temple pieces.
In practicing the teachings of the present invention, which is to use the temple to temple frame size of the frame and the temple to temple head size of the wearer to fit a frame to the wearer, it is necessary to determine the temple to temple frame size of each frame of the stock of frames from which the wearer will select his or her frame. This may be done by actually measuring the temple to temple frame size of each frame of the stock of frames. Alternatively, a less time consuming way is to measure the temple to temple frame size for each particular eye and bridge size of each frame style. An apparatus is described below for accurately measuring the temple to temple frame size of a frame.
It is noted that, because of manufacturing tolerances, the temple to temple frame size for frames having the same eye and bridge size and style may vary. In such case, it may be necessary to measure several frames of the same eye and bridge size and style to determine a statistical temple to temple frame size, such as by averaging. Statistical determination may WO 9/13447 PCT/US92/1133b always be used: However, if the variance from frame to frame of a particular eye and bridge size and style is too great, it may be preferable to measure each particular frame, or to require the manufacture of those frames to reduce the tolerance range of the temple to temple frame size.
In order to fit frames efficiently based on the wearer's head size, it is preferable to establish temple to temple size ranges and to group the frames according to these size ranges. The span of each temple to temple size range between these limits may be based on a statistical sampling of the temple to temple frame sizes of the available frames, or may be selected arbitrarily.
The temple to temple size ranges may have uniform spans. The temple to temple size ranges may be non-overlapping and continuous with each other, in that the upper limit of one size range is the same as the lower limit of the next size range, except for the extreme upper and lower limits of the entire range covered by all of the temple to temple size ranges. The method of the present invention may also be practiced utilizing size ranges which have non-uniform spans, which are not continuous, or which are overlapping. An important aspect of practicing the present invention is that the frames of the stock of frames are identified according to predetermined temple to temple size ranges.
According to one embodiment of the invention, the temple to temple size ranges are continuous and have spans of 4 millimeters. The ranges can be located in numerous ways. For example, the total range of temple to temple frame sizes of most adult-sized frames is generally from 120 millimeters to 160 millimeters. In one embodiment, the temple to temple size ranges are set up with 4 millimeter spans as 119.5mm-123.5mm, 123.5mm-127.5mm, 127.5mm-131.5mm, etc. , throughout the total range.
The total range of temple to temple frame sizes of most children's frames is generally from 108 millimeters to 130 millimeters. The temple to temple size ranges are set up with 4 millimeter spans, as 107.5mm-111.5mm, 111.5mm-115.5mm, 115.5mm-119.5mm, etc., over the total range.
According to another embodiment of the invention, consideration is given to the degree of accuracy of the measurement of the temple to temple sizes of the frames. In this embodiment, each frame is measured to the nearest millimeter (i.e., measurements above one half millimeter are rounded up). The temple to temple size ranges have spans of 3 millimeters, and are spaced apart by 1 millimeter. This results in non-continuous ranges having range to range spans of 1 millimeter, while the temple to temple size range is only 3 millimeters. In this embodiment, since the respective upper limit and lower limit of sequential temple to temple size ranges are different, there is no possibility that a temple to temple frame size measurement will be equal to a limit shared by the size ranges. As a practical matter, though, the rounding of the temple to temple frame size measurement to the nearest millimeter results in each non-continuous, 3 millimeter span size range encompassing temple to temple frame size measurements covering almost 4 millimeters. These ranges can be located numerous ways. One such way is that the respective lower limits of these ranges are divisible by 4 millimeters, e.g. 120mm-123mm, 124mm-127mm, 128mm-131mm, etc.
The rounding of the temple to temple frame sizes to the nearest millimeter when used with the continuous ranges described above, precludes a temple to temple frame size from falling exactly at the respective upper and lower limits of two sequential temple to temple size ranges. Other rounding criteria may be used.
Once a plurality of temple to temple size ranges have been determined, each of the frames is identified as having a respective temple to temple frame size which falls within one of the plurality of temple to temple size ranges. To so identify these frames, each temple to temple size range is assigned a respective designation which is indicative of that range. Each frame is associated with the respective designation assigned to the temple to temple size range within which the respective frame falls. Although many different designations may be used, according to the preferred embodiment, the designation is a group of colors, each of which designates a particular temple to temple size range. Each frame is associated with the color WO 9s/13447 PCT/USg2/1133b designation by affixing to the frame a tag which includes the appropriate size range color. As used herein, a tag may be adhered to or hung from the object to which it is affixed. In the preferred embodiment, color coded stickers are attached to the frames, such as being located on the frames themselves, or on a demonstration lens carried by the frames. This embodiment of the invention allows the frames to be located randomly without respect to their size ranges, since each frame carries its own size designation. Alternatively, the frames could be grouped according to size ranges, such as in display areas, for example on walls or in with the display trays, carrying the size range designation. Designations other than color may also be used, such as the specific numerical range of the temple to temple size range, geometric shapes, or any other designation sufficient to differentiate the temple to temple size ranges.
Once the frames have been identified as having a temple to temple frame size that falls within one of the predetermined temple to temple size ranges, the next step is to identify which of the predetermined temple to temple size ranges corresponds to the wearer. This is done by measuring the temple to temple head size of the wearer. The final step of this method of fitting eyeglass frames to a wearer is to fit an eyeglass frame selected from at least one temple to temple size range which was identified as corresponding to the wearer. It is noted that in some situations, optical and cosmetic considerations may override the present method of frame selection.
In order to measure the temple to temple head size of the wearer, and use this information to identify the temple to temple size range corresponding to the wearer, it is preferable to use a measuring device to measure the temple to temple head size which automatically indicates any corresponding temple to temple size range or ranges. Such a measuring device may be any apparatus capable of measuring the distance between two points on a solid object, and capable of relating that distance to the predetermined temple to temple size ranges or ranges. According to the teachings of this invention, an apparatus is provided for measuring the temple to temple head size of the wearer. Referring now to FIG. 4, there is illustrated caliper 32 which includes two spaced-apart arms 34 and 36 which are moveable relative to each other. Each arm 34 and 36 includes respective distal end portions 38 and 40 which curve inwardly toward the other arm, terminating in respective measuring tips 42 and 44. This conFguration provides a limited area of contact for accuracy. Arms 34 and 36 are sufficiently long to allow measuring tips 42 and 44 to be located adjacent the wearer's head to measure the temple to temple head size. It is noted that other configurations could be used, such as arms 34 and 36 being straight, rather than curved. Alternatively this could be done by any electronic measuring system adapted to indicate the corresponding temple to temple size range.
Arm.36 includes longitudinal member 46 connected to the proximal end of arm 34, which carries scale 48. Arm 36 includes end 50 which is disposed about and slidably carried by member 46. Referring also to FIG.
5, end 50 includes aperture or window opening 52 which allows scale 48 to be viewed therethrough. Window 52 also includes indicator arrows 54 which are aligned with the center of window opening 52. Indicator arrows 54 cooperate with scale 48 to indicate the distance between measuring tips 42 and 44. Although arrows 54 are shown aligned with measuring tip 44, arrows 54, window 52 and scale 48 could be offset from measuring tip 44, so long as cooperation therebetween is maintained.
Scale 48 includes the designations which have been assigned to the predetermined temple to temple frame size ranges. These designations may be the color coding of sequential segments of scale 48, may be written indicia such as numbers indicating the actual measurement between measuring tips 42 and 44, or other indicia sufficient to designate the predetermined temple to temple size ranges. In the preferred embodiment, scale 48 at least includes the color designations assigned to the respective temple to temple size ranges. It is noted that since there is an overlap of the adult total range and children total range, it is necessary for scale 48 to WO 93/13447 PCT/US92/1133b accommodate this overlap. This may be accomplished by having one color code scheme applied to the total range for adults and children.
In the embodiment of the invention described above in which the temple to temple size ranges are continuous, scale 48 includes color scale 5 48a having each of the color designations located such that indicator arrows 54 indicate the color designation of the temple to temple size range within which the wearer's temple to temple head size falls. In this embodiment, scale 48 also includes numerical scale 48b having the numerical measurement in millimeters as shown in FIG. 5. Respective areas on color 10 scale 48a are colored the respective color corresponding to the respective size range. For example, area 56 includes a color designation extending between 119.5mm to 123.Smm, such as white. Area 58, adjacent area 56, includes a different color designation such as yellow. All frames having a temple to temple frame size falling within the temple to temple frame size 15 range of 119.5mm to 123.5mm would carry a color designation of white.
The same principle is applied to preferably the entire stock of frames being offered for selection.
Referring to FIGS. 4 and 6, bottom 51 of end SO also includes window 52a with indicator arrows 54a. Color scale 48c is disposed along bottom 47 of longitudinal member 46 such that a portion of color scale 48c is viewable through window 52a. Optionally, an additional window 52b having indicator arrows (not shown) may be formed through side 53 of end 50. A scale (not shown) which may include a color scale and/or a numerical scale may be disposed on side 49 of longitudinal member 46 so as to be viewable through window 52b. It is noted that in the preferred embodiment, the width of windows 52, 52a and 52b are the same.
To use caliper 32 to identify at least one temple to temple size range which corresponds to the wearer, measuring tips 42 and 44 are located on either side of the wearer's head, in the preferred region of measurement as described above. A gentle but firm force is exerted against the wearer's head without squeezing the head. Scale 48 is then viewed through window 52 with indicator arrows 54 indicating the designation of the temple to temple size range in which the wearer's temple to temple head size falls.
According to the present invention, at least one temple to temple size range is identified as corresponding to the wearer. To facilitate the fitting of frames, window 52 has a width, W, which establishes a fitting range on either side of indicator arrows 54. Any temple to temple size range having at least a portion which falls within the fitting range is identified as corresponding to the wearer. Thus, any temple to temple size range having at least one of its respective upper and lower range limits within a fitting range of the wearer's temple to temple head size is identified as corresponding to the wearer. In this embodiment (i.e. continuous temple to temple size ranges), the span of the fitting range is defined by the width of the window. In one embodiment, the fitting range is equal to the span of the temple to temple size ranges, i.e. 4 millimeters, and can cover portions of up to two size ranges. In another embodiment, the fitting range is 9mm, and can cover portions of up to four size ranges (4mm span). It is noted that the fitting range may have a span which is not equal to the span of the temple to temple size ranges, and which may not be centered about indicator arrows 54. It is also noted that indicator arrows 54 may be omitted, relying only on window 52.
When the fitting range is identical to the spans of the size ranges, unless the temple to temple head size of the wearer is exactly in the middle of each temple to temple size range, two size ranges will be viewable through window 52. Although indicator arrows 54 will most likely fall within one of these two ranges, either temple to temple frame size range which is viewable through window 52 is considered to correspond to the wearer. As mentioned, this will typically result in two temple to temple size ranges corresponding to the wearer, although in the case where the temple to temple head size of the wearer falls exactly at the center of a temple to temple size range, i.e., only one size range designation appears in window 52, there will be only one temple to temple size range which is identified as corresponding to the wearer. If the fitting range is greater than the spans of the size ranges, then more than two size ranges may be viewable through window 52 and thusly identified as corresponding to the wearer. In the case of a 9mm wide window and 4mm size ranges, up to four size ranges may be viewable through window 52.
In the embodiment of the invention described above in which the temple to temple size ranges are not continuous, there is a range to range span which lies between each size range and is not part of either adjacent _ size range. In this embodiment, as illustrated in FIG. 7, scale 48e includes w color scale with, for example, color areas 56f and 58f, separated by area 57f which may have a "neutral" color which does not correspond to any of the size range designated colors. In this embodiment, it is possible that the temple to temple head size will not fall within any temple to temple size range, with indicator arrows 54 ind~ Mating on scale 48e the area between the size ranges, for example area 57f Window 52, in one aspect of this embodiment, establishes a fitting range having a span greater than the range to range span. Preferably, in this embodiment, the fitting range span is equal to the span between the lower limits of adjacent non-continuous size ranges, which is 4 millimeters for the example described earlier. Because of the span of the fitting range, two size ranges may be visible through window 52, both of which are identified as corresponding to the wearer. If only one size range i~displayed in window 52, then only one size range will be identified as corresponding to the wearer.
The practice of the method of the present invention does not require that caliper 32 be capable of indicating the actual temple to temple head size of the wearer, but only be capable of identifying the temple to temple size ranges which correspond to the wearer's temple to temple head size. In the preferred embodiment, colors are used to designate and signify the temple to temple size ranges, and correlate those ranges to the frames being offered for selection. Therefore, in the preferred embodiment, scale 48 need only include colored areas of the proper width arranged according to the temple to temple size ranges. As mentioned above, however, other indicia may indicate the various size ranges and be displayed on scale 4$. It is noted that in the preferred embodiment, a numerical scale is also displayed, although it is not required in the preferred embodiment for the practice of this invention.
Once at least one temple to temple size range has been identified as corresponding to the wearer, the final step of the method is to fit an eyeglass frame to the wearer selected from at least one temple to temple size range.
By following this method, the selection of an eyeglass frame can be done objectively based on temple to temple size ranges which correspond to the wearer, and on the identification of the frames being offered for selection which fall within the corresponding temple to temple size range.
When the temple to temple frame size is determined by actually measuring the temple to temple frame size, several difficulties are encountered. When the frames are open, it is difficult to maintain the temples parallel to each other and perpendicular to the front of the frame, so as to obtain an accurate temple to temple measurement. It is also difficult to keep the scale perpendicular to the temples. In order to get an acceptable accurate temple to temple measurement (dimension G in FIG. 3), it is necessary that the temple pieces be substantially parallel to each other and substantially perpendicular to the front of the frame, and, concomitantly, to plane 16.
It is also necessary that the measurement be taken at locations along each temple piece which are equidistant from the frame front or plane 16.
When this measurement is taken freehand, it is difficult to locate accurately both ends of the measuring device at locations equidistant from plane 16 while maintaining the desired parallelism and perpendicularity of the temple pieces.
Another problem in measuring this dimension is the potential for scratching the frames (and its lenses if any). If the frames are placed on an . unacceptable surface, that surface may result in scratches to the frame, ' WO y3/13447 - PCT/US92/113~0 particularly the front of the frame, or lenses. If metal calipers are used to measure this distance, scratches in the temple pieces may result. Avoiding these problems while taking a freehand measurement requires a significant amount of time, and frequently results in inaccurate measurements or S scratches. .
FIG. 8 is a perspective view of an embodiment of a frame measurement platform 102 constructed in accordance with the teachings of the present invention. Frame measurement platform 102 is constructed of plastic or other material which will not easily scratch frame 104 or lenses.
Eyeglass frame 104 is open, having temple pieces 106 and 108 extended from front 110 of eyeglass frames 104. Temple pieces 106 and 108 are illustrated as being generally flat and elongate, having enlarged portion 112 (of temple piece 106 - the corresponding portion of temple piece 108 not being visible in FIG. 8) adjacent hinge 114 which is illustrated as not being flat or elongate. Enlarged portion 112 diagrammatically represents any configuration of a temple piece which is not flat or elongate, such as ornamentation, cosmetic or other construction.
Frame measurement platform 102 includes support 117, first and second reference members 118 and 120, and measuring scale 122. Referring now to FIG. 9, support 117 is shown in cross-section having base 124, upper portion 126 and intermediate portion 128 interposed therebetween. As shown in FIG. 9, base 124 and upper portion 126 are substantially planar, although other configurations and shapes can be used. Second portion 126 overlies base 124. Support 117 is illustrated as being of a uniform width such that the widths of upper portion 126 and base 124 are identical.
However, variations in these widths are within the scope of the teachings of this invention, and the width of upper portion 126 may be different than that of base 124. Upper surface 134 of upper portion 126 defines reference measuring plane 136. Pad 138 is carried by upper portion 126, and is made of a material which will not easily scratch eyeglass frame 104 or its lenses.
Support 117 also includes retaining portion 130 extending from base 124. Retaining portion 130 is spaced apart from end 132 of upper portion 126.
Since first and second reference members 118 and 120 are illustrated as being mirror images of each other, reference will be made generally to 5 second reference member 120, it being understood that first reference member 118 is of similar, mirror image construction.
Referring to FIGS. 9, 10 and 11, second reference member 120 includes base portion 140 and reference surface 142 which extends from base portion 140. Reference surface 142 defines a temple measuring plane which 10 is substantially perpendicular to base portion 140. Second reference member 120 is carried by support 117 such that the temple measuring plane is substantially perpendicular to reference measuring plane 136. Reference surface 142 is illustrated as being substantially planar, although other configurations which define the temple measuring plane can be used.
15 Reference surface 142 includes a plurality of slots 148 formed therethrough for receiving measuring scale 122, which are disposed substantially parallel to reference measuring plane 136. However, it is noted that slots 148 do not have to be parallel to reference measuring plane 136.
Support 117 is adapted to support and retain base portion 140 through 20 the cooperation of base 124, upper portion 126 and retaining portion 130.
It is noted that retaining portion 130 forms an acute angle with base 124, i.e.
of less than 90~, thereby providing clearance between edge 144 of base portion 140 and the rounded corner formed between base 124 and retaining portion 130. Second reference member 120 includes slot 146 into which end 132 extends such that slot 146 slidably receives a portion of upper portion 126, allowing second reference member 120 t~~ be moveable with respect to support 117. Slot 146 is located on second reference member 120 such that base portion 140 includes a portion of slot 146. This allows upper portion 126 to be in contact with base portion 140, such that, when the gap between end 132 and base 124 is less than the residual thickness of base portion 140, upper portion 126 resiliently urges second reference member 120 against base 124, thereby maintaining base portion 140 in close contact with base 124.
Referring now to FIG. 12, measuring scale 122 includes first and second measuring tips 150 and 152 which are moveable with respect to each other. Measuring tip 152 is illustrated being fixed with respect to body 154 of measuring scale 122, while measuring tip 150 is slidable therealong. Measuring scale 122 carries numeric scale 156, as well as a plurality of designations 158. As best seen in FIG. 8, upper layer 150a of measuring tip 150 is transparent so as to allow measuring scale 122, and in particular numeric scale 156 and plurality of designations 158, to be viewable therethrough. Each respective designation, 158a through 158m, identify a respective temple to temple size range. As illustrated, each designation is identified by a respective number, e.g. 4 through 16 as illustrated, which is located on a color field (shown as rectangular boxes and not being shaded in the drawings to maintain clarity). Any identifying designation may be used, including the numbers of colors alone or together as illustrated.
Plurality of designations 158 are located on measuring scale 122 at respective locations such that edge 160 indicates the respective designation 158a through 158m of the temple to temple size range within which the distance between measuring tips and 152 falls. Edge 160 functions as indicator means for indicating on measuring scale 122 a location which corresponds to the distance between measuring tips 150 and 152. Other structures and means for indicating such locations on scale 122 will be readily apparent from this disclosure.
Referring now to FIG. 8, frame measurement platform 102 is shown in use. Frame 104 is located against retaining portion 130 with the frame hinges 21a adjacent first and second reference members 118 and 120, and overlying upper portions 126, with pad 138 protecting frame 104 (and its lenses if any) from scratches. Frame 104 is located between spaced apart first and second reference members 118 and 120, with temple pieces 106 and 108 in the extended position, disposed adjacent the respective reference surfaces of first and' second reference members 118 and 120. Measuring scale 122 is shown disposed in the middle slot of slots 148, so that measuring tips 150 and 152 contact temple pieces 106 and ~ O8 . above portion 112.
In use, measuring tips 150 and 152 are moved away from each other to engage temple pieces 106 and 108, preferably placing them in contact with the respective reference surfaces of first and second reference members 118 and 120, generally parallel to the temple measuring planes defined thereby. The designation corresponding to the temple to temple size range within which the distance between measuring tips 150 and 152 fall, is indicated by edge 160.
The mirror image spacing between slots 148 of first reference member 118 and second reference member 120 locates measuring tips 150 and 152 at locations along temple pieces 106 and 108 which are equidistant from front 110 (as well as plane 16). In this orientation, plane 16 is generally coplanar to reference measuring plane 136, although it is not absolutely required. It is acceptable for front 110 of frame 104 to be located at various angles to reference measuring plane 136, so tong as temples 106 and 108 can be measured in planes which are substantially perpendicular to reference measuring plane 136 (i.e. the respective included angles between the temples and the frame front are substantially equal).
Preferably, scale .122 is located in the lowest scale receiving slot 148 which allows the perpendicular distance between temple pieces 106 and 108 to be measured without encountering or being interfered by portion 112.
First and second reference members 118 and 120 are shown having a plurality of slots 148, although a single slot in each of first and second reference members 118 and 120 is acceptable as long as portion 112 can be avoided.
Although first and second reference members 118 and 120 are illustrated as being moveable with respect to each other and to support 117, other constructions are possible. For example, one of first and second WO 93/13447 PCT/US92/113::b reference members 118 and 120 could be fixed with respect to support 117, such as by being formed integrally therewith, with the other reference member being moveable. Another possible construction includes both first and second reference members 118 and 120 being fixed with respect to support 117, . with support 117 being constructed such that reference members 118 and 120 are moveable with respect to each other. In such a case, support 117 could be formed of two halves, with one half fitting inside the other so as to be slidable and moveable with respect to the other half of support 117.
Upper portion 126 of support 117 is inclined downwardly with respect to base 124 as well as retaining portion 130. This configuration helps to maintain frame 104 in the measuring position, although other orientations of upper portion 126 are possible. This inclination also allows the user of frame measurement platform 102 a better view of frame 104 and scale 122.
As described, frame measurement platform 102 can be used to determine the temple to temple frame size of an eyeglass frame by using it to measure the perpendicular distance between the temple pieces. It may also be used in practicing a method of fitting an eyeglass frame to a wearer when the wearer has a second eyeglass frame which has previously been fitted to or worn by that wearer. As described above, the method of fitting an eyeglass frame to a wearer includes the step of identifying at least one temple to temple size range as corresponding to the wearer. As described above, one way is to measure the temple to temple size range of the wearer.
However, when the wearer has another eyeglass frame which has previously been properly fitted to or acceptably worn by that wearer, another method may be used to determine the temple to temple size range corresponding to that wearer. In this other method, the temple to temple frame size of the second eyeglass frame of the wearer is determined in order to identify the temple to temple size range corresponding to the wearer. This may be done by measuring the temple to temple frame size of the second eyeglass frame.
Alternatively, the temple to temple frame size of the second eyeglass frame may be known from previous fittings.
In summary, numerous benefits result from employing the concepts of the invention as described. The method provides a consistent and prioritized approach to fitting eyeglasses based on objective criteria which increases the likelihood of a good fit in proportion to the wearer's face. This method gives the wearer a greater understanding as to the depth of selection offered by the fitter, making it easier to select properly fitting frames in less time.
The selection of properly fitting frames results in fewer adjustments being necessary in order to fit the frame to the wearer's head. The method of the present invention is easy to communicate to the wearer, and helps to eliminate some of the guess work associated with the selection of frames.
The frame measurement platform allows the temple pieces to be maintained substantially parallel to each other and substantially perpendicular to the front of the frame while measuring the perpendicular distance between the temple pieces at a location which is substantially equidistant from the front of the eyeglass frames.
The foregoing description of a preferred embodiment of the invention has been presented for purposes of illusuation and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Obvious modifications or variations are possible in light of the above teachings. The embodiment was chosen and described in order to best illustrate the principles of the invention and its practical application to thereby enable one of ordinary skill in the art to best utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims appended hereto.
Scale 48 includes the designations which have been assigned to the predetermined temple to temple frame size ranges. These designations may be the color coding of sequential segments of scale 48, may be written indicia such as numbers indicating the actual measurement between measuring tips 42 and 44, or other indicia sufficient to designate the predetermined temple to temple size ranges. In the preferred embodiment, scale 48 at least includes the color designations assigned to the respective temple to temple size ranges. It is noted that since there is an overlap of the adult total range and children total range, it is necessary for scale 48 to WO 93/13447 PCT/US92/1133b accommodate this overlap. This may be accomplished by having one color code scheme applied to the total range for adults and children.
In the embodiment of the invention described above in which the temple to temple size ranges are continuous, scale 48 includes color scale 5 48a having each of the color designations located such that indicator arrows 54 indicate the color designation of the temple to temple size range within which the wearer's temple to temple head size falls. In this embodiment, scale 48 also includes numerical scale 48b having the numerical measurement in millimeters as shown in FIG. 5. Respective areas on color 10 scale 48a are colored the respective color corresponding to the respective size range. For example, area 56 includes a color designation extending between 119.5mm to 123.Smm, such as white. Area 58, adjacent area 56, includes a different color designation such as yellow. All frames having a temple to temple frame size falling within the temple to temple frame size 15 range of 119.5mm to 123.5mm would carry a color designation of white.
The same principle is applied to preferably the entire stock of frames being offered for selection.
Referring to FIGS. 4 and 6, bottom 51 of end SO also includes window 52a with indicator arrows 54a. Color scale 48c is disposed along bottom 47 of longitudinal member 46 such that a portion of color scale 48c is viewable through window 52a. Optionally, an additional window 52b having indicator arrows (not shown) may be formed through side 53 of end 50. A scale (not shown) which may include a color scale and/or a numerical scale may be disposed on side 49 of longitudinal member 46 so as to be viewable through window 52b. It is noted that in the preferred embodiment, the width of windows 52, 52a and 52b are the same.
To use caliper 32 to identify at least one temple to temple size range which corresponds to the wearer, measuring tips 42 and 44 are located on either side of the wearer's head, in the preferred region of measurement as described above. A gentle but firm force is exerted against the wearer's head without squeezing the head. Scale 48 is then viewed through window 52 with indicator arrows 54 indicating the designation of the temple to temple size range in which the wearer's temple to temple head size falls.
According to the present invention, at least one temple to temple size range is identified as corresponding to the wearer. To facilitate the fitting of frames, window 52 has a width, W, which establishes a fitting range on either side of indicator arrows 54. Any temple to temple size range having at least a portion which falls within the fitting range is identified as corresponding to the wearer. Thus, any temple to temple size range having at least one of its respective upper and lower range limits within a fitting range of the wearer's temple to temple head size is identified as corresponding to the wearer. In this embodiment (i.e. continuous temple to temple size ranges), the span of the fitting range is defined by the width of the window. In one embodiment, the fitting range is equal to the span of the temple to temple size ranges, i.e. 4 millimeters, and can cover portions of up to two size ranges. In another embodiment, the fitting range is 9mm, and can cover portions of up to four size ranges (4mm span). It is noted that the fitting range may have a span which is not equal to the span of the temple to temple size ranges, and which may not be centered about indicator arrows 54. It is also noted that indicator arrows 54 may be omitted, relying only on window 52.
When the fitting range is identical to the spans of the size ranges, unless the temple to temple head size of the wearer is exactly in the middle of each temple to temple size range, two size ranges will be viewable through window 52. Although indicator arrows 54 will most likely fall within one of these two ranges, either temple to temple frame size range which is viewable through window 52 is considered to correspond to the wearer. As mentioned, this will typically result in two temple to temple size ranges corresponding to the wearer, although in the case where the temple to temple head size of the wearer falls exactly at the center of a temple to temple size range, i.e., only one size range designation appears in window 52, there will be only one temple to temple size range which is identified as corresponding to the wearer. If the fitting range is greater than the spans of the size ranges, then more than two size ranges may be viewable through window 52 and thusly identified as corresponding to the wearer. In the case of a 9mm wide window and 4mm size ranges, up to four size ranges may be viewable through window 52.
In the embodiment of the invention described above in which the temple to temple size ranges are not continuous, there is a range to range span which lies between each size range and is not part of either adjacent _ size range. In this embodiment, as illustrated in FIG. 7, scale 48e includes w color scale with, for example, color areas 56f and 58f, separated by area 57f which may have a "neutral" color which does not correspond to any of the size range designated colors. In this embodiment, it is possible that the temple to temple head size will not fall within any temple to temple size range, with indicator arrows 54 ind~ Mating on scale 48e the area between the size ranges, for example area 57f Window 52, in one aspect of this embodiment, establishes a fitting range having a span greater than the range to range span. Preferably, in this embodiment, the fitting range span is equal to the span between the lower limits of adjacent non-continuous size ranges, which is 4 millimeters for the example described earlier. Because of the span of the fitting range, two size ranges may be visible through window 52, both of which are identified as corresponding to the wearer. If only one size range i~displayed in window 52, then only one size range will be identified as corresponding to the wearer.
The practice of the method of the present invention does not require that caliper 32 be capable of indicating the actual temple to temple head size of the wearer, but only be capable of identifying the temple to temple size ranges which correspond to the wearer's temple to temple head size. In the preferred embodiment, colors are used to designate and signify the temple to temple size ranges, and correlate those ranges to the frames being offered for selection. Therefore, in the preferred embodiment, scale 48 need only include colored areas of the proper width arranged according to the temple to temple size ranges. As mentioned above, however, other indicia may indicate the various size ranges and be displayed on scale 4$. It is noted that in the preferred embodiment, a numerical scale is also displayed, although it is not required in the preferred embodiment for the practice of this invention.
Once at least one temple to temple size range has been identified as corresponding to the wearer, the final step of the method is to fit an eyeglass frame to the wearer selected from at least one temple to temple size range.
By following this method, the selection of an eyeglass frame can be done objectively based on temple to temple size ranges which correspond to the wearer, and on the identification of the frames being offered for selection which fall within the corresponding temple to temple size range.
When the temple to temple frame size is determined by actually measuring the temple to temple frame size, several difficulties are encountered. When the frames are open, it is difficult to maintain the temples parallel to each other and perpendicular to the front of the frame, so as to obtain an accurate temple to temple measurement. It is also difficult to keep the scale perpendicular to the temples. In order to get an acceptable accurate temple to temple measurement (dimension G in FIG. 3), it is necessary that the temple pieces be substantially parallel to each other and substantially perpendicular to the front of the frame, and, concomitantly, to plane 16.
It is also necessary that the measurement be taken at locations along each temple piece which are equidistant from the frame front or plane 16.
When this measurement is taken freehand, it is difficult to locate accurately both ends of the measuring device at locations equidistant from plane 16 while maintaining the desired parallelism and perpendicularity of the temple pieces.
Another problem in measuring this dimension is the potential for scratching the frames (and its lenses if any). If the frames are placed on an . unacceptable surface, that surface may result in scratches to the frame, ' WO y3/13447 - PCT/US92/113~0 particularly the front of the frame, or lenses. If metal calipers are used to measure this distance, scratches in the temple pieces may result. Avoiding these problems while taking a freehand measurement requires a significant amount of time, and frequently results in inaccurate measurements or S scratches. .
FIG. 8 is a perspective view of an embodiment of a frame measurement platform 102 constructed in accordance with the teachings of the present invention. Frame measurement platform 102 is constructed of plastic or other material which will not easily scratch frame 104 or lenses.
Eyeglass frame 104 is open, having temple pieces 106 and 108 extended from front 110 of eyeglass frames 104. Temple pieces 106 and 108 are illustrated as being generally flat and elongate, having enlarged portion 112 (of temple piece 106 - the corresponding portion of temple piece 108 not being visible in FIG. 8) adjacent hinge 114 which is illustrated as not being flat or elongate. Enlarged portion 112 diagrammatically represents any configuration of a temple piece which is not flat or elongate, such as ornamentation, cosmetic or other construction.
Frame measurement platform 102 includes support 117, first and second reference members 118 and 120, and measuring scale 122. Referring now to FIG. 9, support 117 is shown in cross-section having base 124, upper portion 126 and intermediate portion 128 interposed therebetween. As shown in FIG. 9, base 124 and upper portion 126 are substantially planar, although other configurations and shapes can be used. Second portion 126 overlies base 124. Support 117 is illustrated as being of a uniform width such that the widths of upper portion 126 and base 124 are identical.
However, variations in these widths are within the scope of the teachings of this invention, and the width of upper portion 126 may be different than that of base 124. Upper surface 134 of upper portion 126 defines reference measuring plane 136. Pad 138 is carried by upper portion 126, and is made of a material which will not easily scratch eyeglass frame 104 or its lenses.
Support 117 also includes retaining portion 130 extending from base 124. Retaining portion 130 is spaced apart from end 132 of upper portion 126.
Since first and second reference members 118 and 120 are illustrated as being mirror images of each other, reference will be made generally to 5 second reference member 120, it being understood that first reference member 118 is of similar, mirror image construction.
Referring to FIGS. 9, 10 and 11, second reference member 120 includes base portion 140 and reference surface 142 which extends from base portion 140. Reference surface 142 defines a temple measuring plane which 10 is substantially perpendicular to base portion 140. Second reference member 120 is carried by support 117 such that the temple measuring plane is substantially perpendicular to reference measuring plane 136. Reference surface 142 is illustrated as being substantially planar, although other configurations which define the temple measuring plane can be used.
15 Reference surface 142 includes a plurality of slots 148 formed therethrough for receiving measuring scale 122, which are disposed substantially parallel to reference measuring plane 136. However, it is noted that slots 148 do not have to be parallel to reference measuring plane 136.
Support 117 is adapted to support and retain base portion 140 through 20 the cooperation of base 124, upper portion 126 and retaining portion 130.
It is noted that retaining portion 130 forms an acute angle with base 124, i.e.
of less than 90~, thereby providing clearance between edge 144 of base portion 140 and the rounded corner formed between base 124 and retaining portion 130. Second reference member 120 includes slot 146 into which end 132 extends such that slot 146 slidably receives a portion of upper portion 126, allowing second reference member 120 t~~ be moveable with respect to support 117. Slot 146 is located on second reference member 120 such that base portion 140 includes a portion of slot 146. This allows upper portion 126 to be in contact with base portion 140, such that, when the gap between end 132 and base 124 is less than the residual thickness of base portion 140, upper portion 126 resiliently urges second reference member 120 against base 124, thereby maintaining base portion 140 in close contact with base 124.
Referring now to FIG. 12, measuring scale 122 includes first and second measuring tips 150 and 152 which are moveable with respect to each other. Measuring tip 152 is illustrated being fixed with respect to body 154 of measuring scale 122, while measuring tip 150 is slidable therealong. Measuring scale 122 carries numeric scale 156, as well as a plurality of designations 158. As best seen in FIG. 8, upper layer 150a of measuring tip 150 is transparent so as to allow measuring scale 122, and in particular numeric scale 156 and plurality of designations 158, to be viewable therethrough. Each respective designation, 158a through 158m, identify a respective temple to temple size range. As illustrated, each designation is identified by a respective number, e.g. 4 through 16 as illustrated, which is located on a color field (shown as rectangular boxes and not being shaded in the drawings to maintain clarity). Any identifying designation may be used, including the numbers of colors alone or together as illustrated.
Plurality of designations 158 are located on measuring scale 122 at respective locations such that edge 160 indicates the respective designation 158a through 158m of the temple to temple size range within which the distance between measuring tips and 152 falls. Edge 160 functions as indicator means for indicating on measuring scale 122 a location which corresponds to the distance between measuring tips 150 and 152. Other structures and means for indicating such locations on scale 122 will be readily apparent from this disclosure.
Referring now to FIG. 8, frame measurement platform 102 is shown in use. Frame 104 is located against retaining portion 130 with the frame hinges 21a adjacent first and second reference members 118 and 120, and overlying upper portions 126, with pad 138 protecting frame 104 (and its lenses if any) from scratches. Frame 104 is located between spaced apart first and second reference members 118 and 120, with temple pieces 106 and 108 in the extended position, disposed adjacent the respective reference surfaces of first and' second reference members 118 and 120. Measuring scale 122 is shown disposed in the middle slot of slots 148, so that measuring tips 150 and 152 contact temple pieces 106 and ~ O8 . above portion 112.
In use, measuring tips 150 and 152 are moved away from each other to engage temple pieces 106 and 108, preferably placing them in contact with the respective reference surfaces of first and second reference members 118 and 120, generally parallel to the temple measuring planes defined thereby. The designation corresponding to the temple to temple size range within which the distance between measuring tips 150 and 152 fall, is indicated by edge 160.
The mirror image spacing between slots 148 of first reference member 118 and second reference member 120 locates measuring tips 150 and 152 at locations along temple pieces 106 and 108 which are equidistant from front 110 (as well as plane 16). In this orientation, plane 16 is generally coplanar to reference measuring plane 136, although it is not absolutely required. It is acceptable for front 110 of frame 104 to be located at various angles to reference measuring plane 136, so tong as temples 106 and 108 can be measured in planes which are substantially perpendicular to reference measuring plane 136 (i.e. the respective included angles between the temples and the frame front are substantially equal).
Preferably, scale .122 is located in the lowest scale receiving slot 148 which allows the perpendicular distance between temple pieces 106 and 108 to be measured without encountering or being interfered by portion 112.
First and second reference members 118 and 120 are shown having a plurality of slots 148, although a single slot in each of first and second reference members 118 and 120 is acceptable as long as portion 112 can be avoided.
Although first and second reference members 118 and 120 are illustrated as being moveable with respect to each other and to support 117, other constructions are possible. For example, one of first and second WO 93/13447 PCT/US92/113::b reference members 118 and 120 could be fixed with respect to support 117, such as by being formed integrally therewith, with the other reference member being moveable. Another possible construction includes both first and second reference members 118 and 120 being fixed with respect to support 117, . with support 117 being constructed such that reference members 118 and 120 are moveable with respect to each other. In such a case, support 117 could be formed of two halves, with one half fitting inside the other so as to be slidable and moveable with respect to the other half of support 117.
Upper portion 126 of support 117 is inclined downwardly with respect to base 124 as well as retaining portion 130. This configuration helps to maintain frame 104 in the measuring position, although other orientations of upper portion 126 are possible. This inclination also allows the user of frame measurement platform 102 a better view of frame 104 and scale 122.
As described, frame measurement platform 102 can be used to determine the temple to temple frame size of an eyeglass frame by using it to measure the perpendicular distance between the temple pieces. It may also be used in practicing a method of fitting an eyeglass frame to a wearer when the wearer has a second eyeglass frame which has previously been fitted to or worn by that wearer. As described above, the method of fitting an eyeglass frame to a wearer includes the step of identifying at least one temple to temple size range as corresponding to the wearer. As described above, one way is to measure the temple to temple size range of the wearer.
However, when the wearer has another eyeglass frame which has previously been properly fitted to or acceptably worn by that wearer, another method may be used to determine the temple to temple size range corresponding to that wearer. In this other method, the temple to temple frame size of the second eyeglass frame of the wearer is determined in order to identify the temple to temple size range corresponding to the wearer. This may be done by measuring the temple to temple frame size of the second eyeglass frame.
Alternatively, the temple to temple frame size of the second eyeglass frame may be known from previous fittings.
In summary, numerous benefits result from employing the concepts of the invention as described. The method provides a consistent and prioritized approach to fitting eyeglasses based on objective criteria which increases the likelihood of a good fit in proportion to the wearer's face. This method gives the wearer a greater understanding as to the depth of selection offered by the fitter, making it easier to select properly fitting frames in less time.
The selection of properly fitting frames results in fewer adjustments being necessary in order to fit the frame to the wearer's head. The method of the present invention is easy to communicate to the wearer, and helps to eliminate some of the guess work associated with the selection of frames.
The frame measurement platform allows the temple pieces to be maintained substantially parallel to each other and substantially perpendicular to the front of the frame while measuring the perpendicular distance between the temple pieces at a location which is substantially equidistant from the front of the eyeglass frames.
The foregoing description of a preferred embodiment of the invention has been presented for purposes of illusuation and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed. Obvious modifications or variations are possible in light of the above teachings. The embodiment was chosen and described in order to best illustrate the principles of the invention and its practical application to thereby enable one of ordinary skill in the art to best utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims appended hereto.
Claims (16)
1. A device for measuring the perpendicular distance between the two temples of an open eyeglass frame, comprising:
(a) a support defining a reference measuring plane;
(b) a first reference member carried by said support, said first reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane;
(c) a second reference member carried by said support said second reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other;
(d) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (e) measuring means registering with said first and second reference members for measuring the perpendicular distance between said temples when said temples are placed in contact with said respective reference surfaces of said first and second reference members.
(a) a support defining a reference measuring plane;
(b) a first reference member carried by said support, said first reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane;
(c) a second reference member carried by said support said second reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other;
(d) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (e) measuring means registering with said first and second reference members for measuring the perpendicular distance between said temples when said temples are placed in contact with said respective reference surfaces of said first and second reference members.
2. The device of claim 1 wherein said measuring means comprise a measuring scale having first and second measuring tips which are moveable with respect to each other.
3. The device of claim 2 wherein said measuring scale comprises:
(a) indicator means for indicating on said measuring scale a location which corresponds to the distance between the measuring tips; and (b) a plurality of designations carried by said measuring scale, each respective designation identifying a respective temple to temple size range, said designations being located on said measuring scale at respective locations such that said indicator means indicate the respective designation of the temple to temple size range within which the distance between said measuring tips falls.
(a) indicator means for indicating on said measuring scale a location which corresponds to the distance between the measuring tips; and (b) a plurality of designations carried by said measuring scale, each respective designation identifying a respective temple to temple size range, said designations being located on said measuring scale at respective locations such that said indicator means indicate the respective designation of the temple to temple size range within which the distance between said measuring tips falls.
4. The device of claim 1 wherein said first and second reference members include means for receiving and supporting said measuring means.
5. The device of claim 4 wherein said means for receiving and supporting said measuring means comprise at least one respective slot formed through each respective reference surface of said first and second reference members.
6. The device of claim 5 wherein each of said at least one respective slot is substantially parallel to said reference measuring plane.
7. The device of claim 1 wherein one of said first and second reference members is formed integrally with said support.
8. A device for measuring the perpendicular distance between the two temples of an open eyeglass frame, comprising:
(a) a support including (i) a base;
26a (ii) an upper portion overlying said support portion, said upper portion defining a reference measuring plane; and (iii) an intermediate portion interposed between said base and said upper portion;
(b) first and second reference members carried by said support, each said first and second reference member respectively including a base portion and a reference surface extending from said base portion, said reference surface defining a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other, each of said respective reference surfaces having at least one respective scale receiving slot formed therethrough;
(c) said support being adapted to support and retain said respective base portion of at least one of said first and second reference members;
(d) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (e) a measuring scale having first and second measuring tips which are moveable with respect to each other, said scale being adapted to the be received by each of said at least one respective scale receiving slot whereby the perpendicular distance between said temples may be measured when said temples are placed in contact with said respective reference surfaces of said first and second reference members.
(a) a support including (i) a base;
26a (ii) an upper portion overlying said support portion, said upper portion defining a reference measuring plane; and (iii) an intermediate portion interposed between said base and said upper portion;
(b) first and second reference members carried by said support, each said first and second reference member respectively including a base portion and a reference surface extending from said base portion, said reference surface defining a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other, each of said respective reference surfaces having at least one respective scale receiving slot formed therethrough;
(c) said support being adapted to support and retain said respective base portion of at least one of said first and second reference members;
(d) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (e) a measuring scale having first and second measuring tips which are moveable with respect to each other, said scale being adapted to the be received by each of said at least one respective scale receiving slot whereby the perpendicular distance between said temples may be measured when said temples are placed in contact with said respective reference surfaces of said first and second reference members.
9. The device of claim 8 wherein said upper portion of said support is non-parallel to said base.
10. The device of claim 9 wherein the angle between said upper portion and said base is acute.
11. The device of claim 8 wherein said at least one scale receiving slot is substantially parallel to said reference measuring plane.
12. The device of claim 8 wherein said measuring scale comprises:
(a) indicator means for indicating on said measuring scale a location which corresponds to the distance between the measuring tips; and (b) a plurality of designations carried by said measuring scale, each respective designation identifying a respective temple to temple size range, said designations being located on said measuring scale at respective locations such that said indicator means indicate the respective designation of the temple to temple size range within which the distance between said measuring tips falls.
(a) indicator means for indicating on said measuring scale a location which corresponds to the distance between the measuring tips; and (b) a plurality of designations carried by said measuring scale, each respective designation identifying a respective temple to temple size range, said designations being located on said measuring scale at respective locations such that said indicator means indicate the respective designation of the temple to temple size range within which the distance between said measuring tips falls.
13. The device of claim 8 wherein said support includes a retaining portion extending from said base, said retaining portion being spaced apart from said upper portion and cooperating with said base and said upper portion to retain said base portion of at least one of said first and second reference members.
14. The device of claim 13 wherein at least one of said first and second reference members includes a slot formed therethrough which slidably receives a portion of said upper portion of said support.
15. A method of determining the temple to temple frame size of an eyeglass frame, comprising the steps of:
(a) providing means for measuring the temple to temple frame size of the eyeglass frame, said means including:
(i) a support defining a reference measuring plane;
(ii) a first reference member carried by said support, said first reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane;
(iii) a second reference member carried by said support, said second reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other;
(iv) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (v) measuring means for measuring the perpendicular distance between said temples when said temples are placed in contact with said respective reference surfaces of said first and second reference members; and (b) registering said measuring means with said first and second reference members and measuring the temple to temple frame size of the eyeglass frames.
(a) providing means for measuring the temple to temple frame size of the eyeglass frame, said means including:
(i) a support defining a reference measuring plane;
(ii) a first reference member carried by said support, said first reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane;
(iii) a second reference member carried by said support, said second reference member including a reference surface which defines a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other;
(iv) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (v) measuring means for measuring the perpendicular distance between said temples when said temples are placed in contact with said respective reference surfaces of said first and second reference members; and (b) registering said measuring means with said first and second reference members and measuring the temple to temple frame size of the eyeglass frames.
16. A method of determining the temple to temple frame size of an eyeglass frame, comprising the steps of:
(a) providing means for measuring the temple to temple frame size of the eyeglass frame, said means including:
(i) a support including a base;
an upper portion overlying said support portion, said upper portion defining a reference measuring plane; and an intermediate portion interposed between said base and upper portion;
(ii) a first and second reference members carried by said support, each said first and second reference member respectively including a base portion and a reference surface extending from said base portion, said reference surface defining a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second 29a reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other, each of said respective reference surfaces having at least one respective scale receiving slot formed therethrough;
(iii) said support being adapted to support and retain said respective base portion of at least one of said first and second reference members;
(iv) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (v) a measuring scale having first and second measuring tips which are moveable with respect to each other, said scale being adapted to be received by each of said at least one respective scale receiving slot whereby the perpendicular distance between said temples may be measured when said temples are placed in contact with said respective reference surface of said first and second reference members;
and (b) measuring the temple to temple frame size of the eyeglass frame.
(a) providing means for measuring the temple to temple frame size of the eyeglass frame, said means including:
(i) a support including a base;
an upper portion overlying said support portion, said upper portion defining a reference measuring plane; and an intermediate portion interposed between said base and upper portion;
(ii) a first and second reference members carried by said support, each said first and second reference member respectively including a base portion and a reference surface extending from said base portion, said reference surface defining a temple measuring plane which is substantially perpendicular to said reference measuring plane, said second 29a reference member being spaced apart from said first reference member, said first and second reference members being moveable with respect to each other, each of said respective reference surfaces having at least one respective scale receiving slot formed therethrough;
(iii) said support being adapted to support and retain said respective base portion of at least one of said first and second reference members;
(iv) said support and first and second reference members being configured to receive an eyeglass frame such that, when said frame is open, at least a portion of each respective temple is disposed adjacent a respective reference surface of said first and second reference members; and (v) a measuring scale having first and second measuring tips which are moveable with respect to each other, said scale being adapted to be received by each of said at least one respective scale receiving slot whereby the perpendicular distance between said temples may be measured when said temples are placed in contact with said respective reference surface of said first and second reference members;
and (b) measuring the temple to temple frame size of the eyeglass frame.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/816,625 US5175941A (en) | 1991-12-31 | 1991-12-31 | Method and apparatus for fitting eyewear |
| US816,625 | 1991-12-31 | ||
| US07/980,332 US5400522A (en) | 1991-12-31 | 1992-11-23 | Frame measurement platform |
| US980,332 | 1992-11-23 | ||
| CA002124346A CA2124346C (en) | 1991-12-31 | 1992-12-31 | Methods and apparatuses for fitting eyewear |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002124346A Division CA2124346C (en) | 1991-12-31 | 1992-12-31 | Methods and apparatuses for fitting eyewear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2265186A1 CA2265186A1 (en) | 1993-07-08 |
| CA2265186C true CA2265186C (en) | 2001-06-26 |
Family
ID=27169782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002265186A Expired - Fee Related CA2265186C (en) | 1991-12-31 | 1992-12-31 | Methods and apparatuses for fitting eyewear |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2265186C (en) |
-
1992
- 1992-12-31 CA CA002265186A patent/CA2265186C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2265186A1 (en) | 1993-07-08 |
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