CN211094009U

CN211094009U - Spectacle testing and assembling measuring frame

Info

Publication number: CN211094009U
Application number: CN201921901400.4U
Authority: CN
Inventors: 林培任
Original assignee: Shanghai Sanlian Group Co ltd
Current assignee: Shanghai Sanlian Group Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-07-28
Anticipated expiration: 2029-11-06

Abstract

An eyeglass fitting measurement stand, comprising: a main beam having opposing first and second ends; a nose pad assembly connected to the main beam and located between the first and second ends of the main beam; the first glasses leg and the second glasses leg are connected to the first end and the second end of the main beam respectively through rotary connectors, the rotary connectors are used for driving the glasses legs to rotate within a preset angle range in a rotary plane, and the glasses legs are any one of the first glasses leg and the second glasses leg; wherein the plane of rotation is perpendicular to a transverse direction that is parallel to a direction of extension of the main beam from the first end to the second end. Through the utility model provides a rotation angle of two mirror legs can independently be adjusted to the scheme to the adaptation is tested the height difference of ear position about the tester, improves the comfort level of wearing that glasses were tested and are joined in marriage the measuring rack, still does benefit to and provides more accurate parameter for follow-up configuration glasses.

Description

Spectacle testing and assembling measuring frame

Technical Field

The utility model relates to an optometry lens technology field specifically relates to a measurement frame is tested and joined in marriage to glasses.

Background

Glasses are a common vision correction product, and in order to accurately fit glasses, optometry is often required. In order to obtain an accurate optometry result, a complex optometry problem and various human eye visual parameters are involved in the optometry process.

Due to the individual difference of different testees, such as the difference of the left ear position and the right ear position, the existing spectacle fitting measuring frame can not take proper measures aiming at the slight difference, so that the optometry result is inaccurate, and the later correction of the spectacle frame is not facilitated.

Disclosure of Invention

The utility model provides a technical problem provide a modified optometry fitting measuring stand.

In order to solve the technical problem, an embodiment of the utility model provides a measurement frame is tested and joined in marriage to glasses, include: a main beam having opposing first and second ends; a nose pad assembly connected to the main beam and located between the first and second ends of the main beam; the first glasses leg and the second glasses leg are connected to the first end and the second end of the main beam respectively through rotary connectors, the rotary connectors are used for driving the glasses legs to rotate within a preset angle range in a rotary plane, and the glasses legs are any one of the first glasses leg and the second glasses leg; wherein the plane of rotation is perpendicular to a transverse direction that is parallel to a direction of extension of the main beam from the first end to the second end.

Optionally, the rotary joint comprises: the connecting part can rotate around a fulcrum, and the connecting part is fixedly connected with the glasses legs so as to drive the glasses legs to rotate; the driving part is used for driving the connecting part to rotate around the fulcrum.

Optionally, the driving part includes: a drive section screw provided at an end of the girder in a longitudinal direction; and the driving part spiral transmission part is in threaded connection with the driving part screw rod, and moves along the driving part screw rod along with the rotation of the driving part screw rod so as to drive the connecting part to rotate around the fulcrum.

Optionally, the connecting portion has a protruding head portion, the driving portion has a notch, and the protruding head portion extends into the notch.

Optionally, the glasses fitting measuring stand further comprises: the installation axle is fixed in the girder, the installation axle has the installation department, connecting portion through horizontal inner pin with the installation department pin joint, horizontal inner pin does the fulcrum.

Optionally, the mounting part has an angle scale and a tilt angle pointer for indicating a rotation angle of the temple on the rotation plane.

Optionally, the tilt angle indicator is coaxially arranged with the transverse inner pin.

Optionally, any one of the first temple and the second temple includes: the glasses leg main body is connected to the first end or the second end of the main beam through a corresponding rotary connecting piece; an ear hook connected to the temple main body and movable forward and backward with respect to the temple main body along an extending direction of the temple main body; a first locking portion for limiting relative movement between the earhook and the temple body.

Optionally, the temple main body includes a hollow frame, and the straight-line segment of the ear hook extends into the frame and can move back and forth relative to the frame.

Optionally, the glasses fitting measuring stand further comprises: a first lens mount connected to the main beam and located between the nose pad assembly and the first temple; and the second lens fixing frame is connected to the main beam and positioned between the nose support assembly and the second glasses legs.

Optionally, at least one of the first and second lens holders is movable relative to the main beam in a lateral direction and a longitudinal direction, the lateral direction and the longitudinal direction being perpendicular to each other.

Optionally, any one of the first lens holder and the second lens holder includes: a support portion including a longitudinal adjustment portion and a first lateral adjustment portion, the first lateral adjustment portion being connected to the main beam and movable in a lateral direction with respect to the main beam, the longitudinal adjustment portion being connected to and movable with the first lateral adjustment portion; the lens bearing part is connected with the longitudinal adjusting part and is driven by the longitudinal adjusting part to move along the longitudinal direction.

Optionally, the longitudinal adjustment portion includes: a longitudinal support; the first screw rod is arranged on the longitudinal support along the longitudinal direction; the first spiral transmission part is in threaded connection with the first screw rod, the first spiral transmission part moves along the first screw rod along with the rotation of the first screw rod, and the lens bearing part is connected to the first spiral transmission part.

Optionally, the main beam includes: a main beam body disposed in a transverse direction and having opposing first and second ends; the second screw rod is arranged on one side, close to the first end, of the main beam main body along the transverse direction; the second screw transmission part is in threaded connection with the second screw rod, moves along the second screw rod along with the rotation of the second screw rod, and the first lens fixing frame is connected with the second screw transmission part; the third screw rod is arranged on one side, close to the second end, of the main beam main body along the transverse direction; and the third screw transmission part is in threaded connection with the third screw rod, moves along the third screw rod along with the rotation of the third screw rod, and the second lens fixing frame is connected with the third screw transmission part.

Optionally, the nose pad assembly includes: extension arm, adjustment mechanism and nose hold in the palm, the extension arm connect in the girder is located between the first end and the second end of girder, the nose holds in the palm and passes through adjustment mechanism with the extension arm is connected, the nose holds in the palm the contact surface that has with the contact of people's nose, adjustment mechanism is used for adjusting the shape of the contact surface that the nose held in the palm.

Optionally, the glasses fitting measuring stand further comprises: a second lateral adjustment member connected to and movable in a lateral direction relative to the main beam, the first temple arm being connected to the main beam by the second lateral adjustment member and the first temple arm moving with the second lateral adjustment member; a third lateral adjustment member connected to and movable in a lateral direction relative to the main beam, the second temple arm being connected to the main beam by the third lateral adjustment member and the second temple arm moving with the third lateral adjustment member.

Optionally, the glasses fitting measuring stand further comprises: a second locking portion for limiting relative movement between the second lateral adjuster and the main beam; a third locking portion for limiting relative movement between the third lateral adjuster and the main beam.

Compared with the prior art, the utility model discloses technical scheme has following beneficial effect:

an embodiment of the utility model provides a measurement frame is tested and matched to glasses, include: a main beam having opposing first and second ends; a nose pad assembly connected to the main beam and located between the first and second ends of the main beam; the first glasses leg and the second glasses leg are connected to the first end and the second end of the main beam respectively through rotary connectors, the rotary connectors are used for driving the glasses legs to rotate within a preset angle range in a rotary plane, and the glasses legs are any one of the first glasses leg and the second glasses leg; wherein the plane of rotation is perpendicular to a transverse direction that is parallel to a direction of extension of the main beam from the first end to the second end.

Compare current optometry lens measurement frame, this embodiment scheme provides a modified glasses and tests and join in marriage measurement frame, can independently adjust the rotation angle of two mirror legs to the height difference of ear position about the person of being tested is adapted to, improves glasses and tests the comfort level of wearing of joining in marriage measurement frame, does benefit to and provides more accurate parameter for follow-up configuration glasses. Particularly, the temples can rotate on the rotating plane through the rotating connectors, and the two temples are respectively connected with one rotating connector, so that the rotation angles of the two temples can be independently adjusted, and the scene that the left ear position and the right ear position of a tested person have height difference can be favorably adapted.

Further, the rotary joint includes: the connecting part can rotate around a fulcrum, and the connecting part is fixedly connected with the glasses legs so as to drive the glasses legs to rotate; the driving part is used for driving the connecting part to rotate around the fulcrum. Thereby, the temple can rotate in the rotating plane under the driving of the rotating connector.

Drawings

Fig. 1 is a schematic view of a glasses fitting measurement frame according to an embodiment of the present invention;

FIG. 2 is a front view of the eyeglass fitting measurement stand of FIG. 1;

FIG. 3 is a partial rear view of the first lens holder of FIG. 1;

FIG. 4 is a partial cross-sectional view of the main beam of FIG. 1;

FIG. 5 is an exploded view of the nose pad assembly of FIG. 1;

FIG. 6 is a partial cross-sectional view of the area of FIG. 1 where the nose pad assembly attaches to the main beam;

FIG. 7 is a side view of the eyeglass fitting measurement stand of FIG. 1;

FIG. 8 is an exploded view of the temple bar to main beam connection area of FIG. 1;

FIG. 9 is an exploded view of the other side of the temple and main beam connection area of FIG. 1;

fig. 10 is a schematic view of a cross slit lens in accordance with an embodiment of the present invention;

fig. 11 is a schematic view of a pinhole lens according to an embodiment of the present invention;

fig. 12 is a schematic view of a cross-hole lens according to an embodiment of the present invention;

FIG. 13 is a schematic view of the combination of the cruciform slit lens of FIG. 10 and the ophthalmic fitting measurement frame of FIG. 1;

FIG. 14 is a schematic view of the combination of the pinhole lens of FIG. 11 and the spectacle fitting measurement stand of FIG. 1;

fig. 15 is a schematic view of the combination of the cross-hole lens of fig. 12 and the spectacle fitting measurement frame of fig. 1.

Detailed Description

As background art, the existing spectacle fitting measuring stand generally adopts a fixed structure, cannot be adjusted individually according to the facial features of a tested person, affects the accuracy of the optometry result, and is not beneficial to the later correction of the spectacle frame.

On the other hand, the conventional pupillary distance measuring instrument or other measuring methods cannot accurately measure the kappa angle of the human eye.

Specifically, from a visual optics perspective, the geometric center of the pupil of a human eye is not necessarily the optical center of the eye. The reason is that the fovea maculae on the fundus retina has a diameter of about 1 millimeter (mm), which is also the position of the focal center of the optical system of the eyeball. The physiological characteristic of human eyes is that the fovea is not the axial end point of the eyeball, but the axial end point of the optical system of the eye, and the physiological position of the fovea is biased to the temporal side.

That is, generally, the eye axis of the human eye makes an angle with the visual axis, known in medical terms as the kappa (kappa) angle. Anatomically, there is individual variability in the degree of kappa angle, and this variability is an important parameter relative to configuring high-end lenses.

In addition to the kappa angle, the exact prescription may also involve various other parameters. However, the existing interpupillary distance measuring instrument or other measuring methods cannot accurately and conveniently measure various parameters of human eyes.

This embodiment scheme provides a modified glasses are tested and are joined in marriage measuring rack, can independently adjust the rotation angle of two mirror legs to the adaptation is tested the height difference of the left and right ear position of person, improves the glasses and tests the comfort level of wearing of joining in marriage measuring rack, does benefit to and provides more accurate parameter for follow-up configuration glasses. Particularly, the temples can rotate on the rotating plane through the rotating connectors, and the two temples are respectively connected with one rotating connector, so that the rotation angles of the two temples can be independently adjusted, and the scene that the left ear position and the right ear position of a tested person have height difference can be favorably adapted.

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic view of a glasses fitting measurement frame according to an embodiment of the present invention.

The glasses fitting measuring frame of the embodiment can be applied to an optometry fitting scene, such as an optometry scene performed for configuring high-end optical lenses such as a progressive multifocal lens. Wherein, the high-end optical lens is a dimensional configuration which adopts one or two free-form surfaces to realize the diopter of the lens.

Specifically, referring to fig. 1, the eyeglass fitting measurement frame 1 according to the present embodiment may include: a main beam 10, the main beam 10 having opposite first and

second ends

10a, 10 b.

For convenience of description, the extending direction of the main beam 10 from the first end 10a to the second end 10b is referred to as a transverse direction (indicated by ± x in the drawing), and the directions perpendicular to the transverse direction (indicated by ± z in the drawing) are referred to as a longitudinal direction (indicated by ± z in the drawing) and a depth direction (± y), respectively.

When the lateral direction (diagram ± x direction) is a horizontal direction, the longitudinal direction (diagram ± z direction) is a gravity direction, and the depth direction (diagram ± y direction) is perpendicular to a plane formed by the horizontal direction and the gravity direction.

More specifically, the eyeglass fitting measurement stand 1 may further include: a nose pad assembly 11 attached to the main beam 10 and located between the first end 10a and the second end 10b of the main beam 10.

For example, the nose pad assembly 11 can be fixed to the main beam 10 at the midpoint along the transverse direction (shown as ± x direction), i.e., the distance from the nose pad assembly 11 to the first end 10a of the main beam 10 is equal to the distance from the nose pad assembly 11 to the second end 10b of the main beam 10.

The direction of extension of the nose pad assembly 11 may be substantially parallel to the longitudinal direction (shown as the + -z direction).

One end of the nose support component 11 along the extending direction can be fixed on the main beam 10, and when performing the test, the free end of the nose support component 11 can be in contact with the bridge of the nose, so that the spectacle fitting measuring frame 1 is supported on the bridge of the nose of the tested person.

Further, the glasses fitting measurement frame 1 may further include: a first temple 12 connected to a first end 10a of the main beam 10; a second temple 13 attached to the second end 10b of the main beam 10.

For example, either of the first and

second temples

12 and 13 may be hinged to the main beam 10 and may pivot about a hinge point with the main beam 10 in a plane having a lateral direction (shown in the x direction) and a longitudinal direction (shown in the z direction) to switch between a closed position and an open position as shown in fig. 1.

During the light examination, the first temple 12 and the second temple 13 are respectively rotated around the respective hinge points to the open position shown in fig. 1, and at this time, the extending directions of the first temple 12 and the second temple 13 are parallel to each other and the extending direction is parallel to the depth direction (shown in the ± y direction). When necessary, the included angle between the extending direction of the glasses legs and the longitudinal direction (the diagram + -z direction) can be adjusted to improve the comfort degree of the glasses fitting measuring frame 1 worn on the face of the tested person, and at the moment, the extending direction of the glasses legs is no longer parallel to the depth direction (the diagram + -y direction).

Further, the eyeglass fitting measuring stand 1 maintained in the state shown in fig. 1 is worn on the face of the subject, the earhooks of the two temples are coupled to the corresponding ears, and the free end of the nose pad assembly 11 is supported on the nose bridge of the subject.

The first temple 12 and the second temple 13 are respectively connected to two ends of the main beam 10 by a fixing portion, and the extending direction of the fixing portion is the longitudinal direction (shown in the drawing ± z direction).

For example, the fixing portion may include a second lateral adjustment member 17 and a third lateral adjustment member 18.

Further, the glasses fitting measurement frame 1 may further include: a first lens holder 14 connected to the main beam 10 and movable in a lateral direction (shown in the ± x direction) and a longitudinal direction (shown in the ± z direction), the first lens holder 14 being positionable between the nose pad assembly 11 and the first temple 12; a second lens holder 15 connected to the main beam 10 and movable in a lateral direction (shown in the figure ± x direction) and a longitudinal direction (shown in the figure ± z direction), wherein the second lens holder 15 may be located between the nose pad assembly 11 and the second temple 13.

For example, the first lens holder 14 and the second lens holder 15 can be used to carry lenses (also referred to as test strips). During the test, the first lens holder 14 and/or the second lens holder 15 are moved in the ± x direction and the ± z direction, so that the distance between the lenses respectively mounted on the two lens holders in the transverse direction (the ± x direction in the drawing) and the height difference between the lenses in the longitudinal direction (the ± z direction in the drawing) can be adjusted to match the positions of the lenses on both sides with the positions of both eyes of the subject.

In one implementation, referring to fig. 1 and 2, any one of the first lens holder 14 and the second lens holder 15 may include: a support portion 140, wherein the support portion 140 may include a longitudinal adjustment portion 141 and a first lateral adjustment portion 142, the first lateral adjustment portion 142 is connected to the main beam 10 and is movable in a lateral direction (shown as ± x direction) relative to the main beam 10, and the longitudinal adjustment portion 141 is connected to the first lateral adjustment portion 142 and moves with the first lateral adjustment portion 142; a lens bearing part 143, wherein the lens bearing part 143 can be connected to the longitudinal adjusting part 141, and can be moved along the longitudinal direction (shown in the figure ± z direction) by the longitudinal adjusting part 141.

In one embodiment, the support 140 may be an inverted L shape from the perspective shown in fig. 2, and the support 140 of the first lens holder 14 and the support 140 of the second lens holder 15 may be symmetrically disposed, and the axis of symmetry may be the nose pad assembly 11.

Specifically, with respect to the support 140 of the first lens holder 14, the first lateral adjuster 142 may be disposed below the main beam 10 in the-z direction between the main beam 10 and the lens carrier 143, and an upper end of the longitudinal adjuster 141 in the + z direction may be connected to an end of the first lateral adjuster 142 in the lateral direction (± x direction) near the first temple 12.

Similarly, for the support 140 of the second lens holder 15, the first lateral adjustment member 142 may be disposed below the main beam 10 in the-z direction between the main beam 10 and the lens carrier 143, and the upper end of the longitudinal adjustment member 141 in the + z direction may be connected to an end of the first lateral adjustment member 142 in the lateral direction (± x direction) near the second temple 13.

In one implementation, referring to fig. 3, the longitudinal adjustment part 141 may include: a longitudinal support 144; a first screw 145, the first screw 145 being disposed on the longitudinal bracket 144 along a longitudinal direction (shown in ± z direction); a first screw transmission part 146, wherein the first screw transmission part 146 is screwed to the first screw 145, the first screw transmission part 146 moves along the first screw 145 with the rotation of the first screw 145, and the lens bearing part 143 is connected to the first screw transmission part 146.

For example, the outer surface of the first screw 145 may have a trapezoidal thread (not shown), and the first screw driving part 146 has an internal thread adapted to the trapezoidal thread, so that the first screw driving part 146 and the first screw 145 can perform screw driving. By rotating the connected first knob 147, the first screw 145 rotates around its axis, and the first screw 146 moves up and down along the longitudinal direction (shown ± z direction) with the rotation of the first screw 145, so as to drive the lens bearing part 143 connected thereto to move up and down along the longitudinal direction (shown ± z direction).

In one implementation, the front side of the longitudinal support 144 in the-y direction may have graduation marks, as shown in FIG. 2, to read the position of the lens carrier 143 in the longitudinal direction (shown as the + -z direction) during prescription. Accordingly, the front side of the lens bearing portion 143 in the-y direction may be provided with an indication arrow to indicate the current longitudinal position of the lens bearing portion 143. Wherein the front side in the-y direction may be the side facing the optometrist at the time of optometry.

In one implementation, with continued reference to fig. 3, the longitudinal support 144 may include: a longitudinal holder body 148 for supporting the first screw 145; and a first limiting part 149, which is arranged at one end or two ends of the longitudinal bracket main body 148 and is used for limiting the movement stroke of the first screw transmission part 146 on the first screw 145.

In one implementation, both ends of the longitudinal bracket body 148 along the longitudinal direction (shown in ± z direction) may be respectively provided with a first fixing portion 150 to fix the first screw 145 to the longitudinal bracket body 148. The first fixing portions 150 may be formed with through holes (not shown) along a longitudinal direction (shown in the drawing ± z direction), and the first screw 145 sequentially passes through the through holes of the first fixing portions 150, so as to fix the first screw 145 between the longitudinal bracket body 148 and the first fixing portions 150 on the premise that the first screw 145 can rotate around its axis.

Specifically, among the 2 first fixing parts 150 shown in fig. 3, the first fixing part 150 disposed upward in the + z direction may be used to prevent the first screw 145 from falling off the longitudinal holder body 148. For example, an end of the first screw 145, to which the first knob 147 is not coupled, may be formed with a drop-preventing portion 151, and a diameter of the drop-preventing portion 151 may be larger than that of the through-hole of the first fixing portion 150 to ensure that the first screw 145 does not drop from the through-hole.

Further, among the 2 first fixing parts 150 shown in fig. 3, the first fixing part 150 disposed at the lower side in the + z direction may be used to restrict the upward movement of the first screw 145 in the + z direction.

Further, at least one of the 2 first fixing portions 150 shown in fig. 3 may also integrate the function of the first limiting portion 149 to define the highest point and the lowest point of the movement of the first screw transmission portion 146 along the longitudinal direction (shown in ± z direction). For example, the first fixing portion 150 disposed upward in the + z direction may be used to limit the highest point of the movement of the first screw transmission portion 146 in the + z direction.

Further, the first position-limiting portion 149 may also be disposed in the middle of the longitudinal frame body 148, such as the first position-limiting portion 149 between the upper and lower first fixing portions 150 in fig. 3. Similar to the first fixing portion 150, the first position-limiting portion 149 may also be provided with a through hole (not shown) along a longitudinal direction (shown in the drawing ± z direction) for the first screw 145 to pass through, and when the first screw transmission portion 146 moves to abut against the first position-limiting portion 149, the first screw transmission portion is limited to continue moving.

In the arrangement shown in fig. 3, a first limit portion 149 located at the middle of the longitudinal support body 148 may be used to limit the lowest point of movement of the first screw drive portion 146 in the-z direction.

In practical applications, the arrangement position of each first limiting portion 149 can be adjusted according to the allowed movement stroke of the first screw transmission portion 146.

The arrangement of the longitudinal adjusting element 141 on the second lens holder 15 can refer to fig. 3 and the above detailed description of the arrangement of the longitudinal adjusting element 141 on the first lens holder 14, which is not repeated herein.

In one implementation, referring to fig. 1-3, the lens carrier 143 can include: a hollow frame portion 152; the plurality of fastening portions 153 are disposed on the frame portion 152, and the plurality of fastening portions 153 are used for fixing a lens (not shown).

For example, the side of the locking portion 153 facing the center of the frame portion 152 may be provided with a plurality of limiting grooves 154 in parallel along the depth direction (shown in the drawing ± y direction) to fix a plurality of lenses at the same time.

For another example, the number of the locking portions 153 disposed on each lens bearing portion 143 may be 2, as shown in fig. 1.

In one implementation, with continued reference to fig. 1-3, the lens carrier 143 can further include: and an elastic guide portion 155 disposed on the frame portion 152 and located on the same side of the frame portion 152 as the plurality of catching portions 153, wherein one end of the elastic guide portion 155 is fixed to the frame portion 152, the other end of the elastic guide portion 155 is a free end, and at least a portion of the elastic guide portion 155 is arc-shaped.

For example, one end of the elastic guide portion 155 fixed to the frame portion 152 may extend to the fastening portion 153, so as to accurately guide the lens to the fastening portion 153 when the lens is mounted.

For another example, the free end of the elastic guide portion 155 may have a section parallel to the transverse direction (shown in the ± x direction), and the free end may be close to the longitudinal frame body 148 to function as a scale indication for indicating the position of the lens bearing portion 143 in the longitudinal direction (shown in the ± z direction).

In one embodiment, the curvature of the arc-shaped portion of the elastic guide portion 155 may be adapted to the profile of the frame portion 152 to achieve a better guiding effect.

In one embodiment, the elastic guide portion 155 and the locking portion 153 may be disposed on a front side of the frame portion 152 in the-y direction.

In a variation, referring to fig. 3, when the lens holder 143 is worn on the face of a subject for performing an optometry, a plurality of locking parts 153 may be disposed on a side of the lens holder 143 close to the face, and a plurality of limiting grooves (not shown) may be disposed in parallel along a depth direction (shown ± y direction) on a side of each locking part 153 facing the center of the frame 152, so that the lens holder 143 can hold more lenses at the same time.

In one implementation, referring to fig. 4, the main beam 10 may include: a main beam body 100, the main beam body 100 being disposed in a transverse direction (shown as the x direction) and having opposing first and

second ends

100a, 100 b. Wherein the first end 100a of the main beam body 100 may correspond to the first end 10a of the main beam 10, and the second end 100b of the main beam body 100 may correspond to the second end 10b of the main beam 10.

For example, the main beam body 100 may be a sleeve, and a through hole communicating the first end 100a and the second end 100b is opened along a transverse direction (shown in ± x direction).

Alternatively, in order to increase the rigidity, the portion of the main beam body 100 connected to the nose pad assembly 11 at the middle section thereof may be solid, and the first end 100a and the second end 100b are respectively provided with through holes extending towards the opposite ends.

Further, the main beam 10 may further include: a second screw 101, wherein the second screw 101 is disposed on a side of the main beam body 100 close to the first end 100a along a transverse direction (shown in the figure ± x direction); a second screw transmission part 102 screwed to the second screw 101, wherein the second screw transmission part 102 moves along the second screw 101 with the rotation of the second screw 101, and the first lens holder 14 is connected to the second screw transmission part 102.

For example, the second screw 101 and the second screw 102 screwed thereon may extend from the first end 100a into the hollow main beam body 100, and the second knob 103 connected to the second screw 101 may extend from the first end 100 a. The outer surface of the second screw 101 may have a trapezoidal thread (not shown), and the second screw 102 has an internal thread adapted to the second screw 101, so that the second screw 102 and the second screw 101 can realize screw transmission.

Specifically, the first lens holder 14 can be connected to the second screw transmission part 102 through a first transverse adjusting member 142. For example, at least the first lateral adjustment member 142 and the second helical gear 102 may be integrally formed. Alternatively, the first lateral adjustment member 142 may be adhesively connected to the second screw transmission portion 102.

By rotating the second knob 103, the second screw 101 rotates around its own axis, and the second screw transmission part 102 moves left and right along the transverse direction (shown in the drawing ± x direction) along with the rotation of the second screw 101, thereby driving the first transverse adjusting piece 142 connected thereto to move left and right along the transverse direction (shown in the drawing ± x direction).

Further, the main beam 10 may further include: a third screw 104, wherein the third screw 104 is disposed on a side of the main beam body 100 close to the second end 100b along a transverse direction (shown in the figure ± x direction); a third screw transmission part 105 screwed to the third screw 104, wherein the third screw transmission part 105 moves along the third screw 104 with the rotation of the third screw 104, and the second lens holder 15 is connected to the third screw transmission part 105.

For example, the third screw 104 and a third screw 105 screwed thereon may extend from the second end 100b into the hollow main beam body 100, and a third knob 106 connected to the third screw 104 may extend from the second end 100 b. The outer surface of the third screw 104 may have a trapezoidal thread (not shown), and the third screw driving portion 105 has an internal thread adapted to the trapezoidal thread, so that the third screw driving portion 105 and the third screw 104 can realize screw driving.

Specifically, the second lens holder 15 can be connected to the third screw driving portion 105 through a first lateral adjusting member 142. For example, at least the first lateral adjustment member 142 and the third helical gear 105 may be integrally formed. Alternatively, the first lateral adjustment member 142 may be adhesively connected to the third screw transmission part 105.

By rotating the third knob 106, the third screw 104 rotates around its own axis, and the third screw transmission portion 105 moves left and right along the transverse direction (the ± x direction in the figure) with the rotation of the third screw 104, thereby driving the first transverse adjusting member 142 connected thereto to move left and right along the transverse direction (the ± x direction in the figure).

In one implementation, referring to fig. 1, 2 and 4, the main beam body 100 can have graduation marks thereon to read the position of the first lateral adjustment member 142 in the lateral direction (illustrated as the ± x direction). This position may be used to indicate the position of the lenses held on the first and

second lens holders

14, 15 in the lateral direction (shown ± x direction).

Further, the first lateral adjustment member 142 may be provided with an indication block 174 for indicating the scale position of the first lateral adjustment member 142 on the main beam body 100.

In one implementation, with continued reference to fig. 4, the main beam 10 may further include: the second limiting portion 107 is disposed on the main beam main body 100, and the second limiting portion 107 is located between the first end 100a of the main beam main body 100 and the nose pad assembly 11, and is used for limiting a movement stroke of the second spiral transmission portion 102 on the second screw 101.

For example, the second limiting portion 107 may be disposed in the hollow main beam body 100, and a through hole for the second screw 101 to pass through is formed along a transverse direction (shown in the ± x direction), so that when the second spiral transmission portion 102 moves to abut against the second limiting portion 107, the second spiral transmission portion is limited to continue moving.

In one implementation, the main beam body 100 may be provided with a second fixing portion 163 to fix the second screw 101 in the main beam body 100. For example, the second fixing portion 163 is opened with a through hole (not shown) along a transverse direction (shown in ± x direction), the end of the second screw 101 extending into the main beam body 100 is formed with a drop-off preventing portion 109 after passing through the second fixing portion 163, and the diameter of the drop-off preventing portion 109 may be larger than that of the through hole of the second fixing portion 163 to ensure that the second screw 101 is not pulled out from the main beam body 100.

Further, the second fixing portion 163 may be integrated with a limit function of the second limit portion 107 to limit a maximum rightward movement stroke of the second screw transmission portion 102 along the + x direction.

Further, the second limiting portion 107 disposed between the first end 100a of the main beam body 100 and the second fixing portion 163 may be used to limit the maximum leftward movement stroke of the second screw transmission portion 102 along the-x direction.

Similarly, the main beam 10 may further include: a third position-limiting part 108, disposed on the main beam main body 100, wherein the third position-limiting part 108 may be located between the second end 100b of the main beam main body 100 and the nose pad assembly 11, and is used for limiting a movement stroke of the third spiral transmission part 105 on the third screw 104.

For example, the third position-limiting portion 108 may be disposed in the hollow main beam body 100, and a through hole (not shown) for the third screw 104 to pass through is formed along a transverse direction (shown in ± x direction), so that when the third spiral transmission portion 105 moves to abut against the third position-limiting portion 108, the third spiral transmission portion is limited to continue moving.

In one implementation, the main beam body 100 may be provided with a third fixing portion 164 to fix the third screw 104 within the main beam body 100. For example, the third fixing portion 164 is opened with a through hole (not shown) along a transverse direction (shown in ± x direction), one end of the third screw 104 extending into the main beam body 100 is formed with a falling-off prevention portion 109 after passing through the third fixing portion 164, and a diameter of the falling-off prevention portion 109 may be larger than a diameter of the through hole of the third fixing portion 164 to ensure that the third screw 104 is not pulled out from the main beam body 100.

Further, the third fixing portion 164 may be integrated with a limit function of the third limit portion 108 to limit a maximum leftward movement stroke of the third screw transmission portion 105 along the-x direction.

Further, the third limiting portion 108 disposed between the second end 100b of the main beam body 100 and the third fixing portion 164 may be used to limit the maximum rightward movement stroke of the third screw transmission portion 105 along the + x direction.

In one implementation, referring to fig. 4, a groove (not shown) communicating with the hollow area of the main beam body 100 may be opened at a lower end of the main beam body 100 along a-z direction, and an extending direction of the groove may be parallel to a transverse direction (shown as ± x direction). Further, the second screw 102 in the main beam body 100 may extend out of the main beam body 100 from the groove to connect with the corresponding first lateral adjustment member 142 below the main beam body 100 in the-z direction. Similarly, the third screw 105 in the main beam body 100 may extend out of the main beam body 100 from the groove to connect with the corresponding first lateral adjusting member 142 below the main beam body 100 in the-z direction. Therefore, the groove body can also play a limiting role, and the screw motion of the screw can be effectively converted into the transverse motion.

In one implementation, referring to fig. 5 and 6, the nose pad assembly 11 may include: an extension arm 183, said extension arm 183 attached to said main beam 10 and located between a first end 10a and a second end 10b of said main beam 10; an adjusting mechanism 184 and a nose pad 112, wherein the nose pad 112 is connected to the extension arm 183 via the adjusting mechanism 184, the nose pad 112 has a contact surface (as shown in the figure, the first surface 118a of the nose pad main body 118) contacting with a nose of a person (such as a nose of a testee), and the adjusting mechanism 184 is used for adjusting the shape of the contact surface of the nose pad 112.

In one implementation, the extension arm 183 may include: a fixing portion 110 connected between the first end 10a and the second end 10b of the main beam 10 and extending in a longitudinal direction (shown in the ± z direction); a connection adjustment portion 111 connected to the fixing portion 110 and movable in a longitudinal direction (shown in the drawing ± z direction) with respect to the fixing portion 110; the adjusting mechanism 184 is connected to an end 111b of the connection adjusting portion 111 away from the fixing portion 110.

In one embodiment, the fixing portion 110 can be hinged to the main beam 10 and can rotate in a first plane, which is perpendicular to the transverse direction (shown as ± x direction). Thus, the distance between the plane (which may be referred to as a frame plane) where the lens is located and the eye of the test subject in the depth direction (in the ± y direction in the drawing) can be adjusted.

For example, referring to fig. 1, 5, and 6, the front side of the girder main body 100 in the-y direction may be provided with a bracket 113, and the bracket 113 may include a front wall 113a parallel to a third plane parallel to a plane formed by the lateral direction (shown in the ± x direction) and the longitudinal direction (shown in the ± z direction), and a pair of side walls 113b parallel to the first plane.

Specifically, the pair of side walls 113b are disposed at intervals in the lateral direction (illustrated ± x direction), and one side of the pair of side walls 113 in the depth direction (illustrated ± y direction) is connected to the front wall 113a, and the other side is connected to the main beam body 100.

In one embodiment, the fixing portion 110 has a first end 110a and a second end 110b opposite to each other along a longitudinal direction (shown in the ± z direction), and the first end 110a of the fixing portion 110 extends into a space defined by the front wall 113a and the pair of side walls 113b of the bracket 113 and is hinged to the pair of side walls 113b, and the hinge point is referred to as a hinge point a. The front wall 113a of the bracket 113 is formed with a through hole for the pin 114 to pass through.

Further, the pin 114 can move in the through hole toward or away from the fixing portion 110, so that the fixing portion 110 can rotate in the first plane about the hinge point a.

In one embodiment, a spring plate 117 may be further disposed on a side of the front wall 113a of the bracket 113 facing the fixing portion 110, one end 117a of the spring plate 117 may be fixed to the side of the front wall 113a facing the fixing portion 110 by laser welding, and the other end 117b of the spring plate 117 abuts against the first end 110a of the fixing portion 110.

For example, the other end 117b of the spring piece 117 may abut against the protrusion 165 of the fixing portion 110, and the protrusion 165 may be disposed on a surface of the first end 110a of the fixing portion 110 facing the front wall 113a of the bracket 113.

Thus, the cooperation of the pin 114 and the spring plate 117 provides a restoring force to the fulcrum, ensuring that the fixing portion 110 is stabilized in the proper position when moved in the first plane by the pin 114.

In one embodiment, with continued reference to fig. 5 and 6, the fixing portion 110 may be a hollow structure, and the second end 110b is opened with an opening exposing the hollow structure therein, and one end 111a of the connection adjusting portion 111 extends into the fixing portion 110 from the opening and is screwed with the fixing portion screw 115 extending into the fixing portion 110 from the first end 110a of the fixing portion 110.

Specifically, one end 111a of the connection adjustment part 111 may be provided with a coupling part 175 to be screwed with the fixing part screw 115 and to be movable up and down along the fixing part screw 115.

For example, the coupling portion 175 may be a coupling hole opened inward from the first end 111a of the connection adjustment portion 111 in a longitudinal direction (shown ± z direction), the coupling hole having an internal thread, and the surface of the fixing portion screw 115 having an external thread. Inside the fixing part 110, a fixing part screw 115 is extended into the coupling hole to realize screwing.

Further, the end of the fixing portion screw 115 extending from the first end 110a of the fixing portion 110 may be connected to a sixth knob 176, and the sixth knob 176 may be rotated to drive the fixing portion screw 115 to rotate around its axis, so as to adjust the screwing length in the coupling hole.

Thus, by rotating the sixth knob 176, the length of the portion of the connection adjustment portion 111 extending into the fixing portion 110 can be adjusted, so as to achieve the effect of adjusting the distance between the nose pad 112 and the fixing portion 110.

Further, the fixing part 110 and the connection adjusting part 111 may each be a square pipe.

Further, a supporting component, such as a spring 116, may be further disposed in the fixing portion 110, the spring 116 is disposed in the hollow structure of the fixing portion 110, and one end of the spring 116 along the extending and contracting direction abuts against the first end 110a of the fixing portion 110, and the other end is connected to the one end 111a of the connection adjusting portion 111, so as to optimize the overall stability when the distance between the nose pad 112 and the fixing portion 110 is adjusted, and perform the functions of springback and stabilization.

In one implementation, with continued reference to fig. 5, the nose piece 112 may include: a nose pad body 118 for contact with a person's nose; a deformation part 119, the deformation part 119 being attached to the nose pad main body 118 and having elasticity.

For example, the nose pad body 118 may be made of a flexible stainless steel sheet as a substrate, which is covered with a silicone casing.

The nose pad body 118 has opposing first and

second faces

118a, 118b, wherein the first face 118a can be adapted to form the contact face and contact a person's nose.

In one implementation, an insert portion 156 is provided on the second face 118b of the nose pad body 118 near the end of the nose pad body 118. For any of the insertion portions 156, an insertion hole 166 into which the deformation portion 119 is inserted is provided on a side of the insertion portion 156 facing the counterpart insertion portion 156; an opening 157 for the deformation part 119 to extend out is arranged on one side of the insertion part 156 far away from the other insertion part 156; the surface of the insertion portion 156 is opened with a fitting hole 158 to be coupled with the deformation portion 119.

Thus, the insertion portion 156 can ensure that the deformation portion 119 is attached to the nose pad main body 118, and the shape of the contact surface is changed by the elasticity of the deformation portion 119.

In one implementation, the adjustment mechanism 184 may include: and a penetrating screw 160 provided at an end of the extension arm 183.

For example, one end of the through screw 160 may be fixed to an end 111b of the connection adjustment portion 111 away from the fixing portion 110.

For another example, an included angle between the extending direction of the through screw 160 and the extending direction of the extending arm 183 is greater than 90 degrees and less than 180 degrees, so that the position of the nose pad 112 better conforms to the physiological characteristics of the human face.

Further, the adjusting mechanism 184 may further include: an adjusting nut 161 screwed on the through screw 160 and capable of moving up and down along the through screw 160, wherein the adjusting nut 160 pushes or releases the nose pad 112 to change the shape of the contact surface.

For example, the adjustment nut 161 may be a broad nut member having an inner curvature.

In one implementation, a via 162 may be formed through the end of the screw 160 distal from the extension arm 183.

Further, a surface of the through hole 162 contacting the deformation portion 119 has an inner curvature, so that the deformation portion 119 disposed through the through hole 162 can smoothly rotate on the first plane.

For example, the via 162 may be a square hole having an inner curvature.

For another example, the via 162 may be opened in a lateral direction (illustrated ± x direction).

In one embodiment, the deformation portion 119 may be an elastic connection steel sheet, and both ends of the deformation portion 119 in the extending direction are respectively provided with a protrusion portion 159.

After the adjusting nut 161 is screwed to the through screw 160, the deformation portion 119 passes through the through hole 162, and both ends of the deformation portion 119 respectively protrude into the corresponding insertion portions 156, and the protrusions 159 are coupled with the corresponding fitting holes 158 to fix the nose pad body 118 and the deformation portion 119 as one body.

With the adjustment nut 161 being screwed up and down on the through screw 160, the degree of opening and closing of the deformation portion 119 can be changed, and the shape of the first surface 118a of the nose pad main body 118 is adjusted, so that the degree of deformation of the nose pad main body 118 is more suitable for the height of the ridge of the nose.

During the time that the nose pad main body 118 continues to close with the deformation portion 119, both ends of the deformation portion 119 may protrude from the opening 157 to ensure that the nose pad main body 118 can be better attached to the deformation portion 119 at all times.

Specifically, the starting base point of the spectacle fitting measuring frame 1 for facial measurement in the present embodiment is the central line of the bridge of the nose, and therefore, stability and comfort are emphasized in the design of the nose pad assembly 11. In view of the physiological characteristics of asians, the ridge height of the midline of the nose bridge is low, so that the nose pad 112 can better fit to the nose bridge through the cooperation of the nose pad main body 118, the deformation part 119, the through screw 160 and the adjusting nut 161.

In one implementation, since the surface of the through hole 162 contacting the deformation portion 119 has an inner curvature, the nose pad body 118 can rotate in a first plane around the portion of the deformation portion 119 contacting the through hole 162 as an axis to adjust the inclination angle of the nose pad 112.

In one implementation, with continued reference to fig. 1 and 7, either of the first temple 12 and the second temple 13 may include: a temple body 120 connected to the first end 10a or the second end 10b of the main beam 10; an ear hook 121 connected to the temple body 120 and movable forward and backward with respect to the temple body 120 along the extension direction of the temple body 120; a first locking part 122 for limiting a relative movement between the earhook 121 and the temple body 120.

For example, the temple body 120 may be a hollow frame body, and a reading indication point is provided at an appropriate position of the frame body. Correspondingly, the straight line segment of the ear hook 121 can extend into the hollow frame body and move back and forth in the frame body, and the straight line segment of the ear hook 121 can be provided with scale marks. Thus, the entire length of the temple can be adjusted by moving the earhook 121, and after the earhook 121 is moved to a proper position, the earhook 121 and the temple main body 120 are locked by the first locking part 122 to prevent both from being unexpectedly displaced during optometry. At this time, the length of the temple may be read by reading the indication point and the scale line on the ear hook 121.

In one implementation, referring to fig. 2 and 4, the glasses fitting measurement stand 1 may further include: a second lateral adjuster 17, said second lateral adjuster 17 being connected to said main beam 10 and being movable in a lateral direction (shown + -x-direction) relative to said main beam 10, said first temple 12 being connected to said main beam 10 by said second lateral adjuster 17, and said first temple 12 moving with said second lateral adjuster 17.

For example, the main beam 10 may further include: a fifth screw 170, wherein the fifth screw 170 is disposed on a side of the main beam body 100 close to the first end 100a along a transverse direction (shown in the figure ± x direction); and a fourth screw driving part 171 threadedly engaged with the fifth screw 170, wherein the fourth screw driving part 171 moves along the fifth screw 170 as the fifth screw 170 rotates, and the second traverse actuator 17 is connected to the fourth screw driving part 171.

One end of the fifth screw 170 may extend into the main beam body 100, and the other end may be connected to the fourth knob 167. Rotating the fourth knob 167 causes the fifth screw 170 to rotate about its axis.

The extending direction of the second lateral adjusting member 17 may be parallel to the longitudinal direction (shown ± z direction), the upper end of the second lateral adjusting member 17 in the + z direction is connected to the fourth screw driving part 171, and the lower end of the second lateral adjusting member 17 in the-z direction is connected to the first temple 12.

The second lateral adjustment member 17 and the fourth helical gear 171 may be integrally formed, as shown in fig. 8 and 9.

In one embodiment, the fifth screw 170 may be axially provided with a through hole (not shown), and the second screw 101 is disposed in the through hole of the fifth screw 170. Therefore, the fifth screw 170 is sleeved outside the second screw 101 and is arranged in the main beam main body 100, so that the diameter of the main beam main body 100 can be minimized, and the device miniaturization design is facilitated.

In one implementation, the glasses fitting measurement stand 1 may further include: a second locking portion 172 for limiting relative movement between the second lateral adjuster 17 and the main beam 10.

For example, a through hole (not shown) may be formed at a position near the first end 100a of the main beam body 100 along the + z direction, and the second locking portion 172 extends into the main beam body 100 from the through hole. The second locking portion 172 may be a screw that functions to lock the fifth screw 170 when the screw is rotated in the-z direction to interfere with the fifth screw 170 so that the second lateral adjuster 17 can no longer move in the lateral direction (shown as the ± x direction) relative to the main beam 10.

Similarly, the spectacle fitting measurement frame 1 may further include: a third lateral adjustment member 18, said third lateral adjustment member 18 being connected to said main beam 10 and being movable in a lateral direction (shown ± x direction) with respect to said main beam 10, said second temple 13 being connected to said main beam 10 by said third lateral adjustment member 18, and said second temple 13 moving with said third lateral adjustment member 18.

For example, the main beam 10 may further include: a sixth screw 180, said: a sixth screw 180 is disposed on a side of the main beam body 100 close to the second end 100b along a transverse direction (shown in the drawing ± x direction); a fifth screw transmission part 181 screw-coupled to the sixth screw 180, the fifth screw transmission part 181 moving along the sixth screw 180 as the sixth screw 180 rotates, and the third transverse adjustment member 18 being coupled to the fifth screw transmission part 181.

One end of the sixth screw 180 may extend into the main beam body 100, and the other end may be connected to the fifth knob 168. Rotating the fifth knob 168 causes the sixth screw 180 to rotate about its axis.

The extending direction of the third lateral adjusting member 18 may be parallel to the longitudinal direction (shown ± z direction), the upper end of the third lateral adjusting member 18 in the + z direction is connected to the fifth screw part 181, and the lower end of the third lateral adjusting member 18 in the + z direction is connected to the second temple 13.

The third transverse adjustment member 18 and the fifth screw transmission part 181 may be integrally formed, as shown in fig. 8 and 9.

In one specific implementation, the sixth screw 180 may be axially provided with a through hole (not shown), and the third screw 104 is disposed in the through hole of the sixth screw 180, so that the diameter of the main beam body 100 can be minimized, which is beneficial to the miniaturization design of the device.

The glasses fitting measurement stand 1 may further include: a third locking portion 182 for limiting relative movement between the third lateral adjuster 18 and the main beam 10.

For example, a through hole (not shown) may be formed at a position near the second end 100b of the main beam body 100 along the + z direction, and the third locking portion 182 extends into the main beam body 100 from the through hole. The third locking portion 182 may be a screw that, when rotated in the-z direction to interfere with the sixth screw 180, acts to lock the sixth screw 180 such that the third lateral adjustment member 18 can no longer move in the lateral direction (shown as the + -x direction) relative to the main beam 10.

Thus, the second lateral adjusting member 17 and the third lateral adjusting member 18 can adjust the distance between the first temple 12 and the second temple 13 in the lateral direction (shown in the figure ± x direction), which is beneficial to adjusting the temples to proper positions according to the width of the head circumference of the testee. And, the width value of the circumference of the head of the test subject (i.e., the temporal distance of the skull) can be read based on the scale lines drawn on the main beam 10.

In a specific implementation, referring to fig. 1, fig. 7, fig. 8, and fig. 9, the glasses fitting measurement frame 1 according to this embodiment may further include: and the first and

second temples

12 and 13 are connected to the first and second ends 10a and 10b of the main beam 10 through the rotary connectors 19, respectively.

In particular, the rotation connector 19 may be used to rotate the temple in a predetermined angle range within a rotation plane. Wherein the plane of rotation is perpendicular to the transverse direction (shown ± x direction).

For example, the temple bodies 120 may be connected to the main beam 10 by the rotational connection 19.

From this, according to the characteristics that people's ear position height has individuality, through the down dip angle of swivel connected coupler 19 adjustment frame face, and two mirror legs can independently adjust, have important meaning in the later stage correction process of spectacle frame.

In one embodiment, the predetermined angle range may be [ -10,30] degrees, which is an angle between the extending direction of the temple and the depth direction (shown ± y direction).

For example, when the extension direction of the temples is parallel to the depth direction (shown ± y direction), that is, the extension direction of the temples is perpendicular to the longitudinal direction (shown ± z direction), the preset angle is 0 degree.

For another example, when the temple is rotated in the + z direction by the rotational coupling member 19, the value of the preset angle is a positive number, and the value increases as the temple is rotated in the + z direction.

For another example, when the temples are rotated in the-z direction by the rotary connector 19, the preset angle has a negative value, and the value increases as the temples are rotated in the-z direction.

In practical applications, a person skilled in the art can adjust the preset angle range as required. For example, the preset angle range may also be [ -45,45] degrees, [ -15,30] degrees, [ -90,90] degrees, etc.

In one implementation, the rotary connection 19 may include: the connecting part 192 can rotate around a fulcrum, and the connecting part 192 is fixedly connected with the glasses leg to drive the glasses leg to rotate; a driving portion for driving the connecting portion 192 to rotate around the fulcrum.

In one implementation, the driving part may include: a drive screw 190, the drive screw 190 being provided to the second lateral adjuster 17 (or the third lateral adjuster 18) in a longitudinal direction (shown ± z direction); and a driving part screw transmission part 191 screwed to the driving part screw 190, wherein the driving part screw transmission part 191 moves along the driving part screw 190 with the rotation of the driving part screw 190 to drive the connecting part 192 to rotate around the fulcrum.

In one embodiment, one end of the connecting portion 192 may have a protrusion 193 protruding outward, and the protrusion 193 extends into a notch 194 formed in the driving portion screw 191 to couple with the notch 194, so that the screw motion of the driving portion screw 190 can be converted into a linear motion by the driving portion screw 191 and then transmitted to the connecting portion 192.

In one implementation, the eyeglass fitting measuring stand 1 may include a mounting shaft fixed to the main beam 10, the mounting shaft has a mounting portion 179, the connecting portion 192 is pinned with the mounting portion 179 by a transverse inner pin 195, and the transverse inner pin 195 is the fulcrum.

For example, the mounting shaft may be formed by the second lateral adjustment member 17 (or the third lateral adjustment member 18).

In one embodiment, the transverse inner pin 195 passes through the locking hole 196 opened in the connecting portion 192 and the hinge hole 197 opened in the mounting portion 179 in order to hinge the connecting portion 192 to the mounting portion 179, and the connecting portion 192 can rotate in the rotation plane with the transverse inner pin 195 as a fulcrum.

Thus, when the driving knob 177 connected to the driving screw 190 is rotated, the driving screw 191 moves in the longitudinal direction, and the connecting portion 192 is rotated about the pivot point locked by the horizontal inner pin 195 in the rotation plane by the coupling action of the notch 194 and the boss 193.

Further, the connecting portion 192 and the temple body 120 are connected and locked by the straight pin 198, thereby bringing the temple portion into a linkage effect, so that the frame surface is changed in inclination angle.

For example, the connecting part 192 is opened with the second connecting hole 173 along the longitudinal direction, the temple main body 120 is opened with the first connecting hole 169 fitted along the longitudinal direction, and the length of the temple main body 120 along the longitudinal direction may be smaller than the length of the connecting part 192 along the longitudinal direction. When assembled, the temple body 120 is extended into the connecting part 192 such that the positions of the first connecting hole 169 and the second connecting hole 173 coincide, and the straight pin 198 passes through the second connecting hole 173 and the first connecting hole 169 in sequence to achieve the fixed connection of the connecting part 192 and the temple body 120.

In one implementation, the mounting portion 179 may be provided with an angle dial and tilt angle indicator 199 for indicating the angle of rotation (i.e., tilt angle) of the first temple 12 (or second temple 13) in the plane of rotation.

Specifically, the tilt pointer 199 is coaxially disposed with the transverse inner pin 195 to ensure that the tilt pointer 199 can be synchronously rotated when the temple is rotated, so as to accurately indicate the rotation angle of the temple.

For example, the inclined hands 199 may have a catch 199a, and the locking hole 196 of the connecting portion 192 may have a complementary fixing catch 199 b. The mounting portion 179 may have first and second opposing

faces

17a, 17b, the connector 192, the driver screw 190 and the driver screw drive 191 may be located on the first face 17a, and the skew angle hands 199 and the angle scale may be located on the second face 17 b.

After the inclined angle pointer 199 passes through the hinge hole 197 from the second surface 17b, the engaging groove 199a is locked with the fixed engaging opening 199b of the connecting portion 192, and the transverse inner pin 195 passes through the locking hole 196 and the hinge hole 197 from the first surface 17a in sequence and is coupled with the inclined angle pointer 199 to lock the inclined angle pointer 199 and the connecting portion 192. Thereby, the first temple 12 or the second temple 13 rotates the tilt angle pointer 199 synchronously during the rotation of the rotation plane, so that it is possible to read the angle between the first temple 12 or the second temple 13 and the depth direction.

Adopt this embodiment the glasses are tested and are joined in marriage measuring rack 1, in the optometry process, can synchronous measurement person who is surveyed between the eyes' interpupillary distance and visual axis distance. The working principle is that on the basis of fixing the midline of the nose bridge by an instrument, the optical center of the lens can reach an optical element meeting the physiological requirements of eyeballs in the geometric positioning operation of the lens frame by using the basic theory of face recognition and the visual optics theory as the basis and combining the modulation behavior of the auxiliary lens.

Taking the example of a progressive multifocal lens design, the progressive multifocal lens can be divided into several zones, the distance and near and zoom transitions. When the eyes of a person look far away to look near, the sight line set and the sight line downward moving motion are used, and the sight line change track at the moment needs to be tracked and distinguished. The glasses fitting measuring frame 1 of the embodiment can accurately track and identify the sight line change track of human eyes in the period.

The face recognition base is that the geometric characteristics of the human face are taken as measuring points, and the main test target content of the project is various fitting parameters such as the width value of the head circumference of a human, the horizontal distance value and the verticality mutual difference value of the centers of pupils of two eyes, the height value of a nose bridge, the height value of an ear position, the distance value between the ear position and the eye position and the like. The glasses fitting measuring frame 1 can accurately measure and obtain the various fitting parameters.

In a typical application scenario, the optometry process using the above-mentioned glasses fitting measurement frame 1 shown in fig. 1 to 9 may include the following steps:

first, the nose pad assembly 11 and the swivel connector 19 can be adjusted to make the nose pad 112 better fit to the bridge of the tested person's nose, the extension direction of the nose pad assembly 11 is substantially parallel to the longitudinal direction, and the extension direction of the main beam body 100 is substantially parallel to the transverse direction.

Under the premise of determining the nose pad midline reference and the height reference, the fifth screw 170 and the sixth screw 180 are adjusted to adjust the second transverse adjusting piece 17 and the third transverse adjusting piece 18 to proper positions, then the positions of the two temples along the transverse direction are respectively locked by the second locking part 172 and the third locking part 182, and the position information of the second transverse adjusting piece 17 and the third transverse adjusting piece 18 on the main beam main body 100, namely the head circumference width of the tested person is recorded. Wherein, the second lateral adjusting member 17 and the third lateral adjusting member 18 may be respectively provided with an indication block to cooperate with the scale marks on the main beam main body 100 to indicate position information.

Then, using the cross slit lens 2 (which may also be referred to as a cross reference test piece) shown in FIG. 10, the lens bearing portion 143 of the first lens holder 14 is inserted at an angle of 45 ° in the + x and + z directions, and/or the lens bearing portion 143 of the second lens holder 15 is inserted at an angle of 45 ° in the-x and + z directions. The cross slit lens 2 is fixed on the lens bearing portion 143 by the elastic guiding portion 155 combined with the buckling portion 153. And, the first reference scale 20 of the cruciform slit lens 2 is assured of aligning with the horizontal and vertical scales 178 of the lens carrying portion 143, as shown in fig. 13.

In one implementation, the cross-slit lens 2 may include a first lens body 25, and the first lens body 25 may be covered with a first frame 21 at the periphery thereof for protection. A first handle portion 22 may be formed at one side of the first frame body 21 to be taken by a user.

Specifically, the first lens body 25 may be made of an opaque resin material, and the first frame 21 may be made of an engineering plastic.

Further, the center of the first lens body 25 may be provided with a pupil positioning hole 23 with a diameter of 5 mm. In practical applications, the error between the diameter of the pupil positioning hole 23 and the positive or negative error may be within 0.06 mm.

Further, the first lens body 25 may be provided with an orthogonal cross slit 24, and the two slits 24 are orthogonal at the pupil positioning hole 23.

The length L1 of the slit 24 can be 14 millimeters for each slit 24, and the plus and minus tolerances can be within 0.05 millimeters, wherein the slit 24 can be a through groove through both sides of the first lens body 25.

The width D2 of the slit 24 may be 1 millimeter for each slit 24, and the plus or minus error may be within 0.02 millimeters.

That is, the first lens body 25 is shielded from light except for the pupil positioning hole 23 and the cross slit 24.

Further, an end portion 24a of the slit 24 far from the pupil positioning hole 23 may be arc-shaped, a diameter of a semicircle may be 1 mm, and a plus-minus error may be within 0.04 mm.

Further, the first reference scale 20 provided on the first frame body 21 may correspond to the cross-shaped slit 24. That is, the extending directions of the cross-shaped slits 24 coincide with the first reference scales 20, respectively.

After the cruciform slit lens 2 is fixed, the second screw 101 and the third screw 104 are adjusted to move the first lens holder 14 and the second lens holder 15 in the lateral direction (shown ± x direction) to adjust the pupil center of the subject. At this time, if the reflection point of the corneal vertex illuminated by the straight line is located at the center of the pupil positioning hole 23, the parameters of the interpupillary distance of the single eye or the double eyes can be observed and measured by the position of the first lateral adjusting member 142 on the main beam body 100.

Further, if the light reflection point is deviated, the deviated position can be observed in the cross-shaped slit 24 and timely adjusted (for example, the first screw 145, the second screw 101 and/or the third screw 104 are adjusted), and the vector difference of the geometric size between the pupils of the two eyes of the tested person can be observed through the scales on the longitudinal adjusting member 141 and the main beam body 100.

To improve accuracy, the horizontal reference can be adjusted down or up by the lens bearing portion 143 to allow the reflective dots to enter the slit 24.

Therefore, the condition of the cornea reflection point of the tested person at the central position of the pupil positioning hole 23 can be observed, and if deviation exists, quantitative adjustment of horizontal and vertical dimensions (which can respectively correspond to the transverse direction and the longitudinal direction) can be carried out by utilizing the slit 24.

In addition to the measurement of the interpupillary distance between both eyes, a pinhole lens 3 (which may be called a pinhole reference measuring piece) shown in fig. 11 is inserted into the lens receiving portion 143 at the same angle of 45 °. And, the second reference scale 30 of the pin lens 3 is ensured to be aligned with the horizontal and vertical scales 178 of the lens bearing part 143, as shown in fig. 14.

Specifically, the pinhole lens 3 may include: a second lens body 31, wherein a through hole 33 can be formed in the center of the second lens body 31; the second frame 32 covers the outer side of the second lens body 31 to protect the same.

Further, the radius of the through hole 33 may be 0.48 to 0.52 mm.

For example, the second lens body 31 may be made of an opaque resin material, and the second frame 32 may be made of an engineering plastic.

A second handle portion 35 may be formed at one side of the second frame body 32 to be easily taken by a user.

The number of the through holes 33 may be one, and the second lens body 31 may shield light in an area other than the through holes 33.

In one implementation, the second lens body 31 may be provided with a first scale marking 36 and a second scale marking 37, the first scale marking 36 and the second scale marking 37 being orthogonal at the through hole 33.

In one implementation, the first scale markings 36 may have a scale 34 at an end thereof, and the spacing D1 of the scale 34 is 1 mm.

In one embodiment, the second frame 32 may be provided with a second reference scale 30, and the second reference scale 30 corresponds to the first scale mark 36 and the second scale mark 37 respectively. That is, the first scale markings 36 and the second scale markings 37 extend in the same direction as the second reference scale 30. Wherein the second reference scales 30 may include a horizontal reference scale and a vertical reference scale.

By utilizing the pinhole imaging principle, an optical main shaft system of an eyeball, namely a sight line structure of the eye can be theoretically formed by the central point of the macula lutea fovea. Due to the kappa angle, the exit point of most human eyes on the upper surface of the cornea deviates from the central position of the vertex of the cornea, which can be ascertained by means of the pinhole lens 3.

Further, the through holes 33 can also be used to increase the depth of field, and in the case of shallow refractive error, the inspection can be done based on the pinhole lens 3 without adding corrective lenses. For the middle and high-degree ametropia, the auxiliary detection can be performed by a single ball lens (not shown), and the front and rear sides of the lens bearing part 143 of the glasses fitting measurement frame 1 of the embodiment have three insertion grooves (i.e. the limiting grooves 154) for multiple pieces.

When two eyes see a single distant target through the through hole 33, the brain vision center guides the image fusion operation, if two images are seen, the image fusion mechanism of the macular center is not sound, and the two images have a tendency of strabismus or heterophoria, and the binocular vision function needs to be started and checked.

The horizontal and/or vertical vectors (i.e. the positions in the transverse direction and the longitudinal direction) of the pinhole lens 3 can be moved by adjusting the first screw 145, the second screw 101 and/or the third screw 104 to find the variable angle of the binocular fusion. In reconstructing the binocular fusion, the required amount of movement is observed, and the variable at this time may be provided as an angular conversion of kappa.

Thus, the difference between the visual axis base point of the human eye and the visual axis reference point of the both eyes can be measured by the pinhole lens 3.

In a typical application scenario, when working to fit a progressive multifocal lens, it is often desirable to locate the far center and near center points on the lens surface. The central point of near vision usually causes the deviation of the position of the intersection point of the collection due to poor or abnormal coordination and synchronization of the heterophoria or adjustment and collection function, and the parameter content options need to specify the central shift of the single-eye near vision in the manufacturing process of the lens, especially the high-grade personalized design. At this time, the lower viewing angle measurement according to the eye line projection becomes important.

The cross-hole lens 4 (which may be referred to as a cross-star lens, cross-hole test strip) shown in fig. 12 provides a means of testing for this task. The cross-hole lens 4 may be designed based on the cross slit lens 2 shown in fig. 10, wherein a peephole 40 with a radius of 1.5mm is formed at an end 24a of one slit 24, and the movement track of the reflective point on the cornea of the eye can be observed through the pair of peepholes 40. The peephole 40 located above the angle shown in the figure is positioned as a far coordinate, and the peephole 40 located below is positioned as a projection point position of a lower viewing angle.

The radius of the peephole 40 may have a plus or minus error of within 0.02 mm.

Specifically, the cross-shaped slit 24 may include a first slit 241 and a second slit 242. Referring to fig. 15, when the cross-hole lens 4 is mounted on the eyeglass fitting measurement frame 1, the first slit 241 extends in a direction parallel to the longitudinal direction (shown ± z direction), and the second slit 242 extends in a direction parallel to the transverse direction (shown ± x direction).

Further, peep holes 40 are opened at both ends of the first slit 241 in the extending direction. With continued reference to fig. 15, the peephole 40 located above in the longitudinal direction (shown ± z direction) is used for the distance coordinate positioning, and the peephole 40 located below in the longitudinal direction (shown ± z direction) is used as the projection point position of the downward angle of view.

Further, the first lens body 25 is shielded from light except for the pupil positioning hole 23, the first slit 241, the second slit 242, and the peephole 40.

In a variant, the shape of the peephole 40 may be rectangular, polygonal, etc.

Based on the adjustment base point completed based on the cross slit lens 2, under the condition that the tested person does near distance operation, the adduction degree of the visual axis changes from person to person due to the aggregation effect of the two eye axes, and the change amount of the eye axis inward movement track of the tested person in the near distance state can be measured by observing and adjusting the position of the cornea reflection point in the peephole 40.

The glasses fitting measuring rack 1 of the embodiment has the advantage that the vertical reference position can be adjusted up and down. So as to judge the type of lens with gradually changed channel length suitable for the wearer. The channel length of the progressive-focus lens generally has three specifications of long, medium and short.

And under the desktop environment, the reflection mirror effect of the mirror is utilized to track whether the cornea reflection point of the tested person is in the channel of the cross crack in real time, and if deviation exists, the cornea reflection point can be adjusted in time.

When the spectacle fitting measuring stand 1 is worn on the face, it is necessary to observe that the rear surface of the test piece should be held at a position of 12 mm from the anterior vertex of the cornea.

Specifically, the nose pad assembly 11 can be moved back and forth on the first plane by rotating the pin 114, so that the vertical surface of the lens bearing portion 143 is perpendicular to the anterior cornea.

However, the human eye is accustomed to have a certain downward viewing angle, the inner inclination of the whole mirror surface can be adjusted through the rotary connector 19, and when the inner inclination is adjusted to a proper angle, the seat frame scale of the rotary connector 19 can indicate the downward inclination angle of the first temple 12 and the second temple 13. The tilt angle pointer 199 may serve as a fulcrum pointer of the down tilt lever.

In a typical application scene, the height of the ear of a person is individual, the declination angle of the frame surface is different due to different ear positions, most individuals are accompanied by left and right deviations of the ear positions, and the height of the ear position can be known in the later correction process of the spectacle frame, so that the spectacle frame has very important clinical significance.

The ear position has not only the height division but also the front and back division, the shaping of the skull can influence the front and back positions of the ear position, and the specification of the length size of the leg of the spectacle frame required to be selected by the ear position of the tested person in the spectacle fitting operation can be measured through the slide bar action of the spectacle leg main body 120 and the ear hook 121. Meanwhile, the whole test jig can be fixed through the first locking part 122, and the stability of the whole test jig is improved.

Common methods for measuring interpupillary distance are all performed in a passive manner, with the accuracy of the measurement depending on the user of the method. The utility model can be used on the basis of active and passive combination, and the method has more clinical practicability by taking subjective facts as guidance.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. A spectacle fitting measurement stand, comprising:

a main beam having opposing first and second ends;

a nose pad assembly connected to the main beam and located between the first and second ends of the main beam;

the first glasses leg and the second glasses leg are connected to the first end and the second end of the main beam respectively through rotary connectors, the rotary connectors are used for driving the glasses legs to rotate within a preset angle range in a rotary plane, and the glasses legs are any one of the first glasses leg and the second glasses leg;

wherein the plane of rotation is perpendicular to a transverse direction that is parallel to a direction of extension of the main beam from the first end to the second end.

2. The eyewear fitting measurement stand of claim 1, wherein the rotational connection comprises:

the connecting part can rotate around a fulcrum, and the connecting part is fixedly connected with the glasses legs so as to drive the glasses legs to rotate;

the driving part is used for driving the connecting part to rotate around the fulcrum.

3. The eyeglass fitting measurement stand of claim 2, wherein the drive portion comprises:

a drive section screw provided at an end of the girder in a longitudinal direction;

and the driving part spiral transmission part is in threaded connection with the driving part screw rod, and moves along the driving part screw rod along with the rotation of the driving part screw rod so as to drive the connecting part to rotate around the fulcrum.

4. The eyeglass fitting measurement stand of claim 2, wherein the connecting portion has a raised head portion, the drive portion screw drive portion has a notch, and the raised head portion extends into the notch.

5. The eyewear fitting measurement stand of claim 2, further comprising:

the installation axle is fixed in the girder, the installation axle has the installation department, connecting portion through horizontal inner pin with the installation department pin joint, horizontal inner pin does the fulcrum.

6. The eyeglass fitting measurement stand of claim 5, wherein the mounting portion has an angle scale and a tilt angle pointer for indicating a rotation angle of the temple arm on the rotation plane.

7. The ophthalmic fitting measurement stand of claim 6, wherein the tilt index is disposed coaxially with the transverse inner pin.

8. The eyewear fitting measurement stand of claim 1, wherein any one of the first and second temples comprises:

the glasses leg main body is connected to the first end or the second end of the main beam through a corresponding rotary connecting piece;

an ear hook connected to the temple main body and movable forward and backward with respect to the temple main body along an extending direction of the temple main body;

a first locking portion for limiting relative movement between the earhook and the temple body.

9. The eyeglass fitting measurement rack of claim 8, wherein the temple body comprises a hollow frame, and wherein the straight section of the ear loop extends into the frame and is movable back and forth relative to the frame.

10. The eyewear fitting measurement stand of claim 1, further comprising:

a first lens mount connected to the main beam and located between the nose pad assembly and the first temple;

and the second lens fixing frame is connected to the main beam and positioned between the nose support assembly and the second glasses legs.

11. The eyeglass fitting measurement stand of claim 10, wherein at least one of the first lens holder and the second lens holder is movable relative to the spine in a lateral direction and a longitudinal direction, the lateral direction and the longitudinal direction being perpendicular to each other.

12. The eyewear fitting measurement stand of claim 11, wherein any of the first and second lens holders comprises:

a support portion including a longitudinal adjustment portion and a first lateral adjustment portion, the first lateral adjustment portion being connected to the main beam and movable in a lateral direction with respect to the main beam, the longitudinal adjustment portion being connected to and movable with the first lateral adjustment portion;

the lens bearing part is connected with the longitudinal adjusting part and is driven by the longitudinal adjusting part to move along the longitudinal direction.

13. The eyeglass fitting measurement stand of claim 12, wherein the longitudinal adjustment portion comprises:

a longitudinal support;

the first screw rod is arranged on the longitudinal support along the longitudinal direction;

the first spiral transmission part is in threaded connection with the first screw rod, the first spiral transmission part moves along the first screw rod along with the rotation of the first screw rod, and the lens bearing part is connected to the first spiral transmission part.

14. The eyeglass fitting measurement stand of claim 11, wherein the main beam comprises:

a main beam body disposed in a transverse direction and having opposing first and second ends;

the second screw rod is arranged on one side, close to the first end, of the main beam main body along the transverse direction;

the second screw transmission part is in threaded connection with the second screw rod, moves along the second screw rod along with the rotation of the second screw rod, and the first lens fixing frame is connected with the second screw transmission part;

the third screw rod is arranged on one side, close to the second end, of the main beam main body along the transverse direction;

and the third screw transmission part is in threaded connection with the third screw rod, moves along the third screw rod along with the rotation of the third screw rod, and the second lens fixing frame is connected with the third screw transmission part.

15. The eyewear fitting measurement stand of claim 1, wherein the nose pad assembly comprises: extension arm, adjustment mechanism and nose hold in the palm, the extension arm connect in the girder is located between the first end and the second end of girder, the nose holds in the palm and passes through adjustment mechanism with the extension arm is connected, the nose holds in the palm the contact surface that has with the contact of people's nose, adjustment mechanism is used for adjusting the shape of the contact surface that the nose held in the palm.

16. The eyewear fitting measurement stand of claim 1, further comprising:

a second lateral adjustment member connected to and movable in a lateral direction relative to the main beam, the first temple arm being connected to the main beam by the second lateral adjustment member and the first temple arm moving with the second lateral adjustment member;

a third lateral adjustment member connected to and movable in a lateral direction relative to the main beam, the second temple arm being connected to the main beam by the third lateral adjustment member and the second temple arm moving with the third lateral adjustment member.

17. The eyewear fitting measurement stand of claim 16, further comprising:

a second locking portion for limiting relative movement between the second lateral adjuster and the main beam;

a third locking portion for limiting relative movement between the third lateral adjuster and the main beam.