JP2019144373A - Binocular loupe and production method - Google Patents

Abstract

To provide a binocular loupe which reduces a deviation from an observation target of a convergence point of an optical axis of loupe bodies by adjusting a nose fitting part.SOLUTION: A binocular loupe 1 includes a spectacle frame 1, a loupe holding member 4 supported by a rim 1a of the spectacle frame 1, a left and right loupe bodies 2 fixed at a predetermined angle to a surface of the loupe holding member 4, and a nose fitting part 6. The nose fitting part 6 is attached to a bridge portion 1c of the spectacle frame 1 in a central portion 12, has a pair of pad support 13 extending so as to sandwich the nose of a user from both sides from the central portion 12. The nose fitting part 6 is equipped with a plurality of types of spacing between a pair of pad supports 13, and the selected nose fitting part 6 of them is attached to the bridge portion in the central portion 12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a binocular loupe manufacturing system used in medical surgery and precision work.

  A binocular loupe has been widely used in various fields such as the medical field, precision work, and jewelry processing as a means for enlarging and visually observing a local observation object at hand. A binocular loupe is known that includes a spectacle frame that is mounted on a user's ear and that has a loupe body attached to a loupe support member that is attached to the left and right rims of the spectacle frame (for example, a patent Reference 1). In this type of binocular loupe, an opening is drilled in the surface of the loupe support member, and the loupe body is inserted and fixed in the opening. It is fixed in a state where it is inclined at a predetermined angle with respect to the surface of the loupe support member so as to converge.

  On the other hand, the spectacle frame is provided with a nose pad portion that prevents the spectacles from slipping by supporting both sides of the user's nose. However, in a binocular loupe, since a loupe body incorporating an optical system is attached, it becomes heavier than normal glasses and easily slips off. Therefore, the binocular loupe is provided to the user with careful adjustment so that the nose pad fits the user's nose.

JP 2017-129670 A

  Such adjustment is performed by narrowing or widening the distance between the pair of nose pads according to the shape of the user's nose. However, since each of the nose pad portions of Patent Document 1 is fixed to the frame, the frame is bent and deformed when the interval between the nose pad portions is expanded or contracted.

  When the frame is deformed, the loupe support member supported by the frame is also deformed. As a result, the optical axis of the loupe body also moves in the deformation direction, and the convergence point of the optical axes between the loupe bodies. Shifts and the object to be observed cannot be seen clearly.

  The present invention has been made in view of the above problems, and provides a binocular loupe in which the deviation of the convergence point of the optical axes of the loupe bodies from the observation target due to adjustment of the nose pad portion is suppressed.

In order to solve the above-mentioned problem, the present invention is a binocular loupe for enlarging and viewing an observation object at hand,
A pair of left and right rim parts, a bridge part connecting both the rims, a spectacle frame having a nose pad part attached between the pair of rim parts;
A pair of loupe holding members respectively supported by the rim part;
Left and right loupe main bodies attached to the loupe holding member and fixed at a predetermined angle with respect to the surface of the loupe holding member so as to face each observation target;
Consisting of
The nose pad is attached to the pad support, a center part that is detachably attached to the bridge part, a pair of pad supports extending from the center part so as to sandwich the user's nose from both sides, and A nose pad that touches both sides of the user's nose,
A plurality of types of nose pad portions having different pad support intervals are prepared, and the nose pad portion selected from them is attached to the bridge portion by the central portion.

  Furthermore, if the said nose pad has a raised part in the part which touches both sides of a nose, the adhesiveness with a nose will improve.

  The nose pad includes an attachment portion for attaching to the pad support substantially back-to-back with the raised portion. The pad support includes a plurality of mounting holes that are engaged with the mounting portion at different heights, and the nose pad is configured to support the pad according to the mounting hole with which the mounting portion is engaged. The height position for attachment to the body is determined.

A method for producing a binocular loupe in which a plurality of types having different pad support intervals are prepared, and the nose pad portion selected from the plurality of types is attached to the bridge portion by the central portion,
(A) a step of selecting and attaching to the bridge portion the nose pad portion in which the distance between the pad supports is a dimension according to the distance between both sides of the user's nose;
(B) measuring the distance between the pupils of the user wearing the spectacle frame to which the nose pad is attached, and the right pupil position (X1, Y1) on the surfaces of the left and right loupe holding members; Determining a left pupil position (X2, Y2);
(C) orthogonal to the distance A from the observation target to the carrier lens and the vertical line passing through the carrier lens in front of the left and right eyes when wearing the eyeglass frame to which the nose pad is attached Measuring a horizontal distance B and determining lower mounting angles r1 and r2 of the loupe body mounted on the surfaces of the left and right loupe holding members;
(D) The relationship between the right pupil position (X1, Y1) and left pupil position (X2, Y2) of the user and the position of the observation target when the spectacle frame to which the nose pad is attached is worn A step of determining the inner mounting angles p, q of the loupe body to be mounted on the surfaces of the left and right loupe holding members,
(E) With the nose pad portion removed from the bridge portion, openings are formed in the right pupil position and the left pupil position of the loupe holding member, the loupe body is inserted into the opening, and the lower mounting is performed Fixing the angles r1, r2 and the inner mounting angles p, q in a held state;
(F) The finish of the binocular loupe is judged by checking whether the convergence point of the inspection light irradiated through the left and right loupe bodies with the nose pad attached to the bridge portion is the position of the observation object. And steps to
(G) Checking and adjusting the wearing state of the user with the nose pad attached to the bridge,
It consists of each step.

  Here, in the step (E), when the nose pad portion is attached to the bridge portion again, the loupe body fixing confirmation light irradiated through the left and right loupe bodies is fixed at the observation target position to fix the loupe body. Good.

  According to this manufacturing method, while wearing a spectacle frame in which a nose pad part having a size corresponding to the shape of the user's nose is selected from nose pad parts having different pad support intervals, In order to measure the left and right pupil positions, the lower mounting angles r1, r2 and the inner mounting angles p, q on the surface of the magnifying lens holding member, the measurement results are data according to actual use and are suitable for the user. A binocular loupe is produced.

  According to the binocular loupe of the present invention, since the pad support is detachably attached to the bridge portion at the center thereof, the nose pad portion suitable for the user can be attached at the stage of manufacturing the binocular loupe. The nose pad is not adjusted greatly after completion. Even if the spacing between the pad supports is adjusted, the pad support is not directly connected to the rim because the nose pad is attached to the bridge at the center. In addition, the rim portion is not deformed by adjusting the distance between the pad supports. Therefore, due to the deformation of the loupe holding member, the convergence point of the optical axes of the loupe bodies attached to the loupe holding member does not deviate from the observation target.

1 shows an overall configuration diagram of a binocular loupe according to an embodiment of the present invention. FIG. Explanatory drawing of the state which wears a binocular loupe and is working is shown. Explanatory drawing of the downward mounting angle at the time of attaching a loupe to a carrier lens is shown. Explanatory drawing about the inner mounting angles p and q at the time of attaching a loupe to a carrier lens is shown. The structure of a nose pad part is shown, (a) shows the external view of Klings, (b) shows the external view of a nose pad. The structure of a nose pad is shown with a perspective view. In the nose pad part shown in FIG. 5, the various types from which the space | interval of pad support bodies differ are shown. Other examples of nose pads with different crings shapes are shown in various types with different pad support spacings. The flowchart explaining the manufacture procedure of the binocular loupe which concerns on embodiment of this invention is shown. An explanatory view of an example which asks for the lower mounting angle of a loupe body is shown. The explanatory view of an example which measures the inner side installation angle of a loupe main part is shown. An explanatory view for confirming deviation of the convergence point of the optical axes of the loupe bodies from the observation target in the produced binocular loupe is shown.

  Hereinafter, the present invention will be described with reference to the drawings. 1 and 2 show a binocular loupe 10 according to an embodiment of the present invention. The binocular loupe 10 includes a spectacle frame 1, a loupe main body 2 corresponding to the left and right eyes for enlarging a work target image, and a carrier lens 4 that is a loupe holding member for attaching the loupe main body 2 to the spectacle frame 1. And the nose pad portion 6.

  The spectacle frame 1 has substantially the same structure as normal spectacles, and includes a rim 1a into which the carrier lens 4 is fitted, a temple 1b that is hung on both ears of the user, a bridge 1c that connects the left and right rims 1a, and a nose. And a contact portion 6. As the material constituting the spectacle frame 1, a metal such as titanium which is hard to rust and has flexibility, a synthetic resin, or the like is used. And the strap 1 for hold | maintaining in the state which worn the shielding member 7 and binocular loupe which protects both sides of a wearer's face to the temple 1b can be attached as needed.

  The carrier lens 4 has an opening for supporting the loupe main body 2, and the loupe main body 2 is fitted into the opening and is fixed in a state inclined at a predetermined angle with respect to the surface of the carrier lens 4. The material constituting the carrier lens 4 does not necessarily need to be transparent, but is preferably transparent in order to widen the field of view of the observer's hand, and if correction of vision is required, the correction lens However, when correction of visual acuity is not necessary, simple transparent glass may be used. The lens material in this case is glass or plastic. Therefore, the carrier lens 4 in this case has a function of correcting the visual acuity as necessary, in addition to the function of the loupe holding member that supports the loupe body.

  The magnifying glass main body 2 incorporates a magnification optical system in which an image to be observed is adjusted at a predetermined magnification, for example, a magnification of 2.5. Although the magnifying glass main body 2 in this example has a fixed magnification, a type in which the angle of view can be adjusted within a predetermined magnification range, for example, can also be used.

  When the loupe body 2 is attached to the carrier lens 4, the left and right loupe bodies 2 are attached and fixed in a state of being inclined at a predetermined angle with respect to the surface of the carrier lens 4 so that they are directed to the same focal point. This angle is a lower mounting angle r and inner mounting angles p and q with respect to the plane of the carrier lens 4 of the loupe body 2. The position of the loupe body 2 attached to the carrier lens 4 is determined by the inter-pupil distance PD of the user of the binocular loupe.

  The binocular loupe 10 is used for magnifying and observing the observation target of the work operation location W at hand when performing a work in a forward tilt posture as shown in FIG. At this time, the user concentrates the line of sight of both eyes through the left and right loupe bodies 2 at the work operation location W at the position of the hand. As shown in FIG. 3, the downward mounting angle r is a downward mounting angle with respect to a vertical line from the surface of the carrier lens 4 when the loupe body 2 is attached to the carrier lens 4, and from the observation target portion W that is a focal point. The angle β determined by the distance M to the carrier lens 5 and the horizontal distance N orthogonal to the vertical line passing through the center of the carrier lens 5 and the forward tilt angle α of the carrier lens 5 when the wearer performs the operation are obtained. be able to.

  As shown in FIG. 4, the inner mounting angles p and q are respectively directed to the inner side (the nose pad portion 6 side) so that the distal ends of the left and right loupe bodies 2 mounted on the holder 3 are directed to the focus observation target portion W. The inclination angle. The angle at this time depends on the inter-pupil distance PD, specifically, the distances PD1, PD2 from the center O of the nose on the center line L to the center of the pupils of the left and right eyes and the distance from the position O to the work operation point W. It is determined.

  A focus adjustment unit 5 can be attached to the eyepiece side of the loupe body 2 as necessary. The focus adjustment unit 5 is provided with a long distance or a short distance used in accordance with the loupe body 2 in order to correct the visual acuity when the user of the binocular loupe 10 magnifies and observes the object with the left and right loupe bodies 2. A lens to be corrected is provided.

  The nose pad portion 6 includes a clings 9 shown in FIG. 5A and a nose pad pad 15 shown in FIG. The clings 9 includes a central portion 12 that is fastened to the bridge portion 1c of the spectacle frame 1 with screws, and a pair of pad supports 13 that extend downward from the central portion 12 so as to sandwich the user's nose from both sides. Composed. The central portion 12 is attached to the side surface of the bridge 1c, that is, the surface facing the user's face by tightening with a screw at the central portion 12.

  A box-shaped accommodation part 14 is provided at the tip of the pad support 13, and a plurality of attachment holes 14 a are formed in the accommodation part 14 along the direction in which the pad support 13 extends. A mounting portion 17 to be described later of the nose pad 15 is fitted into the mounting hole 14 a, and the nose pad 15 is attached to the pad support 13.

  As shown in FIG. 6, the nose pad 15 includes a horseshoe-shaped base portion 16, a mounting portion 17 that protrudes from the base portion 16, and a raised portion 18 that protrudes from the base portion 16. Including. The attachment portion 17 is provided on the surface of the base portion 16 opposite to the formation surface of the raised portion 18.

  The base portion 16 is formed of a flexible and elastic elastomer material, and includes a horseshoe including two nose side surface facing portions 16a extending substantially in parallel and an intermediate portion 16b connecting the two nose side surface facing portions 16a. It has a shape. As the elastomer material, for example, silicon rubber can be used. The intermediate portion 16b is preferably narrower than the nose side surface facing portion 16a. For example, it is preferable that the width of the intermediate portion 16b is 4.5 mm while the width of the nose side surface facing portion 16a is 8.3 mm. With such a configuration, the intermediate portion 16b can be more easily deformed, and can be easily bent for attachment to the krings 9.

  The raised portions 18 are made of an elastomer material, and are provided so as to be raised at both ends in the longitudinal direction of the base portion 16 and directly in contact with the nose opposite to the surface attached to the pad support 13. ing. It is preferable that the raised portion 18 is raised from the surface by a height that is about half the thickness of the base portion 16. For example, when the thickness of the base portion 16 is 2.5 mm, the raised portion 18 is preferably raised by 1.3 mm from the surface of the base portion 16.

  The raised portion 18 is preferably formed of the same elastomer material as that of the base portion 16, and as the elastomer material, for example, silicon rubber, urethane rubber, fluorine rubber, acrylic rubber, ethylene, as in the base portion 16. Either propylene rubber or polyisoprene rubber material can be used. Further, the raised portion 18 has a curved convex surface. In the illustrated embodiment, the raised portion 18 is formed as a separate member from the base portion 16 and is welded to the base portion 16. However, the raised portion 18 may be integrally formed with the base portion 16.

  The mounting portion 17 is made of a resin material that is harder than the elastomer material that forms the base portion 16 and the raised portion 18, and is provided so as to protrude from the surface attached to the pad support 13 at both longitudinal ends of the base portion 16. It has been. The attachment portion 17 is preferably disposed closer to the intermediate portion 16b than the center of the raised portion 18. For example, polyethylene, polypropylene, or the like can be used as the resin material.

  The nose pad 15 is attached to the pad support 13 by fitting the left and right mounting parts 17 into the mounting holes 14a at the same height of the left and right pad supports 13, and the nose pad part 6 is completed. To do. As shown in FIG. 7, a plurality of types M, S, and O having different intervals between the pad supports 13 are prepared for the krings 9, and the krings 9 having an optimum size is provided according to the shape of the user's nose. Once selected, the nose pad 15 is attached. At this time, the height position attached to the nose pad 15 can be adjusted by selecting the mounting hole 14a into which the mounting part 17 is fitted, and the contact between the nose pad 15 and the nose according to various shapes of the nose. It is possible to adjust the condition. The clings 9 are attached by tightening the central portion 12 to the side surface of the bridge 1c, that is, the surface facing the user's face with a screw at the central portion 12.

  In the nose pad portion 6 shown in FIG. 5, the distance between the pad supports 13 is determined by the opening angle of the two centering on the central portion 12. In another example of the crings 9 shown in FIG. By changing the dimensions over twelve, the intervals between the pad supports 13 are made different, and four types of L, M, S, and O are prepared. Further, in the clings 9 shown in FIG. 8, the central portion 12 is attached to the lower surface of the bridge 1c by tightening with screws. In addition, since the nose pad 15 has flexibility and stretchability as described above, it can be attached to all types of crings 9 shown in FIGS. 5 and 6.

  In this manner, the binocular loupe 10 is selected when the user wears the binocular loupe 10 after the binocular loupe 10 is manufactured because the krings 9 having the optimum distance between the pad supports 13 is selected according to the shape of the user's nose. The distance between the supports 13 is not adjusted greatly, and the focus of the loupe main body 2 is not shifted by widening or narrowing the distance. Even when the interval between the pad supports 13 is slightly expanded or narrowed for fine adjustment, the nose pad portion 6 can be attached to the bridge 1c at the central portion 12, so that even if the pad support 13 is moved, Therefore, the spectacle frame 1 is not distorted, and the focus of the loupe main body 2 is not shifted.

  The binocular loupe 10 is manufactured according to the procedure shown in FIG. This will be specifically described below.

(A) Selection and wearing of the nose pad portion 6 according to the shape of the user's nose Select the nose pad portion 6 whose pad support 13 is spaced according to the distance between both sides of the user's nose. Then, the central portion 12 is attached to the bridge portion 1c.

(B) Measurement of interpupillary distance and determination of the position facing the pupils of the left and right eyes on the surface of the carrier lens 4 In order to measure the interpupillary distance, it is common to use a PD meter. . The PD meter is provided with a window for the measurer at one end and a window through which the measured person sees the inside of the main body on the other side, and the measured person can see the index displayed inside the main body at this window. Bring both eyes closer. Then, when the measurer performs necessary operations while looking into the mouth and matches the left and right pupils of the subject, the PD meter optically reads the image at that time, thereby determining the distance between the pupils and the subject. The distance from the center of the measurer's nose to the center of the left and right pupils is measured and displayed. At this time, the PD meter performs measurement based on, for example, a preset focal length of 40 cm for both eyes. The inter-pupil distance PD, that is, the distances PD1 and PD2 from the center C of the nose to the center of the pupils of the left and right eyes are measured, and correspond to the right pupil position (X1, Y1) and the left pupil position (X2, Y2). The attachment position of the loupe body 2 on the surface of the carrier lens 4 is determined.

(C) Determination of lower mounting angles r1 and r2 of the main body of the loupe As shown in FIG. 2 when the binocular loupe 10 is worn by the user wearing the spectacle frame 1 from which the nose pad portion 6 has been removed from the bridge portion 1a. To reproduce the correct working posture. Then, in this working posture, the distance M from the target portion ahead of the line of sight of the left and right eyes to the carrier lens 4 and the horizontal distance N perpendicular to the vertical line passing through the carrier lens 4 were measured and measured. An angle β sandwiched between the sides A and B is obtained. Further, the forward tilt angle α in the working posture is measured, and a downward mounting angle that is a downward angle when the left and right loupes 2 are attached to the carrier lens 5 is derived from the forward tilt angle α and the angle β. In this case, the lower mounting angles r1 and r2 of the left and right loupe main bodies 2 are obtained by measuring from the left and right sides of the user.

  The lower mounting angles r1 and r2 can be obtained from the image obtained by photographing the user's working posture from the side by computer processing. FIG. 10 shows an image obtained by photographing the user's working posture from the left side, and the computer obtains the lower mounting angle r1 of the left loupe body 2 by the following program.

  First, the producer of the binocular loupe 10 uses the point p1 of the connection portion 6 between the temple portion of the spectacle frame 1 and the frame 1 on the display screen 22 and the point p2 of the operation position as a mouse of the input device or the like. Then, the computer calculates the distance M from the distance between the points p1 and p2 on the image and the imaging magnification of the camera 11B.

  Then, when the producer points out two points, the vertical line V1 passing through the carrier lens 5 on the display screen 22 and a point p3 which is orthogonal to the horizontal direction and the point p2 of the work operation place, the computer The angle β is derived by calculating the actual distance N from the distance between the points p2 and p3 and the imaging magnification.

  Next, the producer draws an inclination line M1 of the back of the head of the worker with respect to the vertical line V1 passing through the backbone of the worker on the display screen 22 so that the computer can display the frame 1 on which the worker is hung. By calculating the forward tilt angle α, the lower mounting angle r1 of the left loupe body is derived. Similarly, the computer derives the lower mounting angle r2 of the right loupe body by performing the same processing on the image obtained by photographing the user's working posture from the right side.

(D) Determination of the inner mounting angles p, q of the loupe main body Corresponding to the right pupil position (X1, Y1) and left pupil position (X2, Y2) of the operator electronically specified by the measurement of the interpupillary distance, The distance to the mark (x mark) applied to the left and right carrier lenses 5 is measured. The measurement may be performed using a measure, but a laser measuring device 21 shown in FIG. 11 can be used. As a measurement procedure at this time, after the operator's face is laser shielded, the laser measuring device 21 is installed at a work operation point W on the center line L passing through the center point O of the frame 1. Without changing the position of the laser measuring instrument 21, by moving the laser measuring instrument 21 left and right so that the laser irradiation port 21a hits each marking spot of the left and right carrier lenses 4, the distance C to each marking spot , D are measured and displayed on the display unit 21b. Then, the inner mounting angles p and q can be obtained from the distances PD1 and PD2 and the distances C and D from the already-obtained center O of the nose to the pupil centers of the left and right eyes, respectively.

  Thus, the inner mounting angles p and q of the loupe main body 2 are determined by the user's right pupil position (X1, Y1) and left pupil position (when the spectacle frame to which the nose pad is attached is worn) X2, Y2) and the position of the observation target (work operation location W). In this case, the distance G from the work operation location W to the center point O of the frame 1 is measured, and this distance The inner mounting angles p and q can be obtained from G and distances C and D. Alternatively, the inner mounting angles p and q can also be obtained from the distance G and the distances PD1 and PD2.

(E) Attaching the loupe body to the carrier lens Once the nose pad portion 6 is removed from the bridge portion 1a, the values of the right pupil position (X1, Y1) and the left pupil position (X2, Y2) obtained from the image data are obtained. The position where the loupe body 2 is inserted into the carrier lens 5 is programmed in the NC processing machine from the lower mounting angles r1, r2 and the inner mounting angles p, q, and the surface of the carrier lens 5 is cut out by cutting the insertion portion. Open an opening. After the opening is made, the loupe body 2 is inserted into the carrier lens 5 through the opening, the lower mounting angles r1, r2 and the inner mounting angles p, q are adjusted by the laser positioning machine, and the loupe body 2 is mounted by the mounting portion 3. Is inserted into the opening and bonded with an adhesive. At this time, the magnifying point of the loupe body fixing confirmation light irradiated through the left and right loupe main bodies 2 is fixed to the loupe main body 2 at the position to be observed while being attached to the bridge portion 1c.

(F) Judgment of binocular loupe finish In order to confirm that the loupe main body 2 is fixed, the binocular is examined by checking whether the convergence point of the left and right laser beams irradiated through the left and right loupe main bodies 2 is the position of the observation target. The finish of the loupe 10 is judged. For example, the screen 20 shown in FIG. 12 provided with a 5 mm grid is arranged at the position of the observation target W by the binocular loupe 10, and laser light is emitted from each loupe main body 2. When the convergence points coincide with each other at the position of the observation target, only one spot S appears as shown in (a).

  If there is an error when attaching the loupe main body 2 to the carrier lens 5, as shown in FIGS. 12B to 12D, the convergence point of the laser beam does not coincide with the position of the observation target and two spots are obtained. S1 and S2 appear. (B) is a case where there is an error in the inner mounting angles p and q and the optical axes of the loupe body 2 are laterally displaced. (C) is when there are errors in the lower mounting angles r1 and r2 in addition to the inner mounting angles p and q, and the optical axes of the loupe body 2 are shifted both horizontally and vertically. It is. (D) is a case where there is an error in the lower mounting angles r1 and r2, and the optical axes of the loupe main body 2 are displaced vertically. Based on this result, the convergence point of the optical axis of the loupe body 2 is adjusted so as to coincide with the position of the object to be observed.

(G) Adjustment of nose pad part The state of wearing to the user is confirmed and adjusted with the nose pad part 6 attached to the bridge part 1c.

  According to the manufacturing method of the binocular loupe, the distance between the pupils, the lower mounting angles r1, r2 and the inner mounting angle p are worn while wearing the spectacle frame to which the nose pad portion 6 corresponding to the shape of the user's nose is attached. , q, the result matches the actual situation of the user, and there is no significant difference between the convergence point and the position of the observation target. Therefore, even when the adjustment is made, the pad support 13 is slightly deformed or the height position of the mounting hole 14a is changed so that the optical axis of the loupe body 2 is converged to the position to be observed. There is no need to make extensive modifications such as changing

DESCRIPTION OF SYMBOLS 1 Eyeglass frame 1a Rim part 1c Bridge part 2 Loupe main body 4 Carrier lens (loupe holding member)
6 Nose pad 10 Binocular loupe 12 Central part 13 Pad support 14 a Mounting hole 15 Nose pad 17 Mounting part 18 Raised part

Claims (8)

A binocular magnifying glass for magnifying the object to be observed at hand,
A pair of left and right rim parts, a bridge part connecting both the rims, a nose pad part, and a spectacle frame,
A pair of loupe holding members respectively supported by the rim part;
Left and right loupe main bodies attached to the loupe holding member and fixed at a predetermined angle with respect to the surface of the loupe holding member so as to face each observation target;
Consisting of
The nose pad portion is
A central portion detachably attached to the bridge portion;
A pair of pad supports extending from the sides to sandwich the user's nose from both sides;
A nose pad that is attached to the pad support and touches both sides of the user's nose;
With
The nose pad portion is prepared in a plurality of types in which the distance between the pair of pad supports is different, and the nose pad portion selected from them is attached to the bridge portion at the center portion. A binocular loupe.   The said nose pad has a horseshoe shape so that it can be attached to both of the pad supports, and is made of a material that can be deformed according to the distance between the pad supports. The binocular loupe described in 1.   The binocular loupe according to claim 2, wherein the nose pad has a raised portion at a portion contacting both sides of the nose.   The binocular loupe according to claim 3, wherein the nose pad includes an attachment portion for attaching to the pad support substantially back-to-back with the raised portion.   The pad support includes a plurality of mounting holes that are engaged with the mounting portion at different heights, and the nose pad is connected to the pad support according to the mounting hole with which the mounting portion is engaged. The binocular loupe according to claim 4, wherein the height position of the attachment is determined. A method for producing a binocular loupe according to any one of claims 1 to 5,
(A) a step of selecting and attaching to the bridge portion the nose pad portion in which the distance between the pad supports is a dimension according to the distance between both sides of the user's nose;
(B) measuring the distance between the pupils of the user wearing the spectacle frame to which the nose pad is attached, and the right pupil position (X1, Y1) on the surfaces of the left and right loupe holding members; Determining a left pupil position (X2, Y2);
(C) orthogonal to the distance A from the observation target to the carrier lens and the vertical line passing through the carrier lens in front of the left and right eyes when wearing the eyeglass frame to which the nose pad is attached Measuring a horizontal distance B and determining lower mounting angles r1 and r2 of the loupe body mounted on the surfaces of the left and right loupe holding members;
(D) The relationship between the right pupil position (X1, Y1) and left pupil position (X2, Y2) of the user and the position of the observation target when the spectacle frame with the nose pad attached is worn A step of determining the inner mounting angles p, q of the loupe body to be mounted on the surfaces of the left and right loupe holding members,
(E) With the nose pad portion removed from the bridge portion, openings are formed in the right pupil position and the left pupil position of the loupe holding member, the loupe body is inserted into the opening, and the lower mounting is performed Fixing the angles r1, r2 and the inner mounting angles p, q in a held state;
(F) The finish of the binocular loupe is judged by checking whether the convergence point of the inspection light irradiated through the left and right loupe bodies with the nose pad attached to the bridge portion is the position of the observation object. And steps to
A method for producing a binocular loupe comprising the steps of:   In the step (E), when the nose pad portion is attached to the bridge portion again, the convergence point of the loupe body fixing confirmation light irradiated through the left and right loupe bodies fixes the loupe body at a position to be observed. Item 7. A method for manufacturing a binocular loupe according to Item 6. (G) Checking and adjusting the wearing state of the user with the nose pad attached to the bridge,
The manufacturing method of the binocular loupe of Claim 6 or 7 further provided.

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