TWI693060B - Conscious type interpupillary distance measuring device - Google Patents

Abstract

The invention includes an optical main frame, a pupil sight measuring frame and a telescopic adjustment component. The optical main frame has two lenses corresponding to the binocular sight. The pupil sight measuring frame has two pupil sight measuring parts. Each pupil sight measuring part has a sight measuring hole, which can be adjusted consciously. The telescopic adjustment component is pivotally arranged between the optical main frame and the pupil sight measuring frame, for adjusting the distance therebetween. In this way, when the line of sight of the two eyes respectively passes through the two lenses and the two line of sight measuring holes to look at a target, a structure that can obtain the pupil distance of the two eyes and the two geometric center distances of the two circular frame parts through the calculation of similar triangles is achieved. Therefore, this case achieves the advantages of conscious interpupillary distance measurement which is more in line with the actual visual experience, does not require high equipment cost, and can calculate the center distance of eye rotation.

Description

Conscious type interpupillary distance measuring device

The invention relates to a conscious pupil distance measuring device, in particular to a conscious pupil distance which has conscious pupil distance measurement which is more in line with actual visual experience, does not require high equipment cost, and can calculate the distance of eyeball rotation center distance Measuring device.

At present, the optometry of eyeglasses is mainly carried out with the relevant optometry equipment and the experience of qualified optometrists. However, the optometry equipment and trial frames used in the optometry process are the same as the glasses actually worn by the wearer. The angle design is different, and it is impossible to fully predict whether it conforms to the actual optical correction parameters of the wearer. The most important thing is that the pupillary distance (Pupillary Distance, referred to as PD) in optometry is quickly measured using an instrument. If the wearer's line of sight is slightly biased at the moment, the optometrist may not find it, and the measurement data may be deviation. As for the geometric center distance (Frame PD, FPD for short) of the frame, it is usually determined by the frame selected by the wearer, which may affect the visual experience of the wearer. There are two broad factors for uncomfortable glasses. One is that the pupil distance (PD) and the optical center of the lens are on different axes, which induces the prism effect. The other is the improper adjustment of the curved arc of the frame, which makes the optical axis of the lens different from the optical axis. The visual axis of the eye does not simultaneously induce distortion aberration effects. The two parts, due to the short process of guided optometry and the visual sensation not consciously worn by the wearer, may not be able to be detected, resulting in visual discomfort after wearing glasses. In view of this, it is necessary to develop technology that can solve the above-mentioned conventional shortcomings.

The purpose of the present invention is to provide a conscious pupil distance measurement device, which has the advantages of conscious pupil distance measurement, which is more in line with actual visual experience, does not require high equipment cost, and can calculate the center distance of eye rotation. In particular, the problem to be solved by the present invention is that the traditional optometry equipment differs from the glasses actually worn by the wearer. The optical angle design is different. In addition, the guided optometry process is short, which may cause the pupil distance and lens The different axes of the optical center induce the prism effect, and then the frame arc is not adjusted properly, which causes distortion and aberration effects when the optical axis of the lens is different from the visual axis of the eye, resulting in problems such as visual discomfort after fitting. The technical means to solve the above problem is to provide a self-conscious interpupillary distance measuring device, which includes: An optical main frame, selected from one of trial frames and general glasses; When selected from the trial frame, it has two round frame parts and four lens engaging parts; the four lens engaging parts are respectively arranged on the two round frame parts, and are respectively used for inserting at least one lens; When selected from the general glasses, it has the two round frame parts, and each round frame part is provided with the lens; each lens is used to correspond to one of the eyes of the wearer's eyes; A pupil sight measuring frame corresponding to the optical main frame, the pupil sight measuring frame has a body part, two movable frame parts, two pupil sight measuring parts and two first fixing parts; the body part corresponds to two The movable frame portion has at least one frame slot, and each movable frame portion has an insertion end and an adjustment end facing away from each other, and the insertion end is for the movable frame portion to be inserted in the The frame groove can be adjusted relative to the horizontal movement; the adjustment end is for the pupil sight measuring part to be inserted, and can be relatively moved, and can be relatively rotated, the pupil sight measuring part has a sight measuring hole, which corresponds to the double In one of the eyes of the eye, each second fixing portion is screwed on the body portion, and when the corresponding horizontal movement of the movable frame portion and the frame groove is adjusted to be positioned horizontally, it is used to screw and fix the Activity frame A plurality of telescopic adjustment components are respectively pivotally arranged between the optical main frame and the pupil sight measuring frame; each telescopic adjustment component follows one of the sight lines of the two eyes to independently adjust the optical The distance between the main frame and the pupil sight measuring frame; In this way, when the line of sight of the eyes of the wearer is respectively viewed through the at least two lenses and the two line of sight measuring holes, a visual mark can be obtained so that the pupil distance of the eyes can be obtained through the calculation of similar triangles And the structure of the distance between the two geometric centers of the two circular frame parts. The above objects and advantages of the present invention are not difficult to gain an in-depth understanding from the following detailed description and drawings of selected embodiments. The following examples and drawings are used to explain the present invention in detail:

Referring to FIGS. 1, 2A, 2B, and 3, the present invention is a conscious pupil distance measurement device, which includes: An optical main frame 1 is selected from one of a trial frame 10A and general eyeglasses 10B (refer to FIGS. 11A, 11B, and 12); When selected from the trial frame 10A, it has two round frame parts 11 and four lens engaging parts 12; the four lens engaging parts 12 are respectively provided on the two round frame parts 11 and are respectively used to insert at least One lens 91; When selected from the general eyeglasses 10B (refer to FIG. 8, its temples are omitted, not shown, and will be described first), it has the two round frame portions 11, and the lens 91 is provided on each round frame portion 11 Each lens 91 is used to correspond to one of the eyes X1, X2 of the wearer's eyes 92. A pupil sight measuring frame 20 is provided corresponding to the optical main frame 1. The pupil sight measuring frame 20 has a body portion 21, two movable frame portions 22, a two pupil sight measuring portion 23, and two first fixing portions 24. The body portion 21 corresponds to two movable frame portions 22 and has at least one frame groove 211, and each movable frame portion 22 has an insertion end portion 22A and an adjustment end portion 22B facing each other. The end portion 22A is provided for the movable frame portion 22 to be inserted into the frame groove 211, and can be adjusted for relative horizontal movement (as shown in FIG. 9, the relative movement position can be provided with, for example, a ruler... It is a well-known technology.). The adjustment end portion 22B is used for insertion of the pupil sight measuring section 23, and can be relatively moved and relatively rotated. The pupil sight measuring section 23 has a sight measuring hole 231 which corresponds to the sight line X1 of the eyes 92 And X2, each of the second fixing portions 24 is screwed on the body portion 21, and when the corresponding movable frame portion 22 and the frame groove 211 are relatively horizontally moved and adjusted to be positioned, they are used for screwing The movable frame portion 22 is fixed. A plurality of telescopic adjustment components 30 are respectively pivotally arranged between the optical main frame 1 and the pupil sight measuring frame 20. Each telescopic adjustment component 30 is used to independently adjust the distance between the optical main frame 1 and the pupil sight measurement frame 20 according to one of the sight lines X1 and X2 of the two eyes 92. In this way, when the sight lines X1 and X2 of the wearer's eyes 92 pass through the at least two lenses 91 and the two sight line measuring holes 231, a sight mark G (as shown in FIG. 7) is viewed A structure that can obtain the pupillary distance (Pupillary Distance, PD for short) of the two eyes 92 and the two geometric center distances (FPD) of the two circular frame portions 11 can be obtained through the calculation of similar triangles. In practice, the trial frame 10A may further include a central frame 111, the opposite inner sides of the two circular frame portions 11 are respectively inserted into the central frame 111, and can be relatively moved and adjusted respectively (relative movements can be provided, for example Rulers...etc., which are easy to identify and adjust the distance, this is a well-known technology, not shown in the picture, and will be described in advance). In this way, the sight lines X1 and X2 of each lens 91 corresponding to the eyes 92 of the wearer can be adjusted respectively. The trial frame 10A may be at least one of a glasses-type trial frame, a comprehensive refractometer trial frame, and a desktop trial frame. When it is a spectacle-type trial frame, it also includes a pair of spectacles 40, which extend from the trial frame 10A (as shown in FIG. 4), and are opposite to each other of the plurality of horizontal extension adjustment components 30, the pair of glasses The foot 40 is worn by the wearer. When the trial frame is a comprehensive refractometer, it is sufficient to fix the trial frame 10A to a known comprehensive refractometer, and the fixing method is not limited. When it is a desktop test frame, it also includes an optometry bracket 50, which is extended from the test frame 10A (as shown in FIG. 5, the extension or fixing method is not limited), and the plurality of horizontal extension adjustment components 30 Opposite to each other, the optometry bracket 50 includes a fixed frame body 51, a lower bar support bar 52 and a forehead abutment bar 53, the chin support bar 51 and the forehead abutment bar 52 extend from the fixed frame 51 respectively , For the chin and head of the wearer to rest against. The frame groove 211 may be one of a single channel structure and two blind hole structures. If it is a single-channel structure, it corresponds to two movable frame parts 22, and the body part 21 is laterally penetrated (as shown in FIG. 2B). In the case of a two-blind hole structure, it corresponds to two movable frame portions 22, which are recessed laterally in the body portion 21, respectively. Each adjustment end 22B has a corresponding upper groove 221 and a lower groove 222. The upper and lower grooves 221 and 222 are used for the pupil line-of-sight measuring portion 23 to be installed and positioned. The pupil sight measuring portion 23 may be a circular plate corresponding to the upper and lower grooves 221 and 222. The pupil line-of-sight measuring unit 23 may be one of a Martens mirror and any optometry measurement structure with the same principle. The pupil sight measuring hole 231 may be one of a long hole, a pinhole, and any optical measuring hole of the same principle. Thereby, when receiving an external force (for example, rotating with a finger), the pupil sight measuring part 23 can be rotated in-situ to a predetermined angle (rotation of a circular plate is a well-known technology that must be achieved, and relative rotation can be provided with, for example, a circle Shape ruler...it is easy to judge the adjustment distance, this is a well-known technology, not shown in the figure, and Chen Ming first). The first fixing portion 24 may be a screw structure. Each telescopic adjustment assembly 30 may have a fixed tube portion 31, a telescopic rod portion 32 and a second fixed portion 33. Each fixed tube portion 31 is pivotally connected to the optical main frame 1 at one end, the telescopic rod portion 32 is telescopically inserted at the other end of the fixed tube portion 31 at one end, and the telescopic rod portion 32 is pivotally connected at the other end One of the two movable frame parts 22 of the body part 21. The second fixing portion 33 is screwed on the fixing tube portion 31, and when the telescopic rod portion 32 and the fixing tube portion 31 are telescopically positioned (as shown in FIG. 10, relative movements can be provided with, for example, a ruler... etc. It is easy to distinguish the person who adjusts the distance. This is a well-known technology, not shown in the figure, which is described in advance. It is used to fix the telescopic rod portion 32 with a screw lock. The second fixing portion 33 may be a screw structure. In the use process of the present invention, it is assumed that the at least two lenses 91 meet (or are very close to, and can be fine-tuned after measurement) the power of the eyes 92. Then the wearer wears the conscious interpupillary distance measuring device, and the sight lines X1 and X2 of the two eyes 92 (refer to FIGS. 3, 4, 5 and 6) successively pass through the lens 91 and the The sight-line measuring hole 231 starts to measure the interpupillary distance when looking toward a target G: First, cover one eye to measure the other open eye, and then the wearer rotates the pupil sight measuring part 23 corresponding to the opened eye. The rotation process must keep the sight through the sight measuring hole 231 Mark G, and at least rotate to the two positions where the sight line measuring hole 231 is 180 degrees and 90 degrees respectively (can be marked with an angle, this is a well-known technology that must be achieved, and will not be described in detail, together with Chen Ming), Of course, the visual mark G may not be visible at the beginning due to a slight deviation in position. At this time, the relevant medical or optometry personnel can assist in adjusting at least one of the following: [a] Adjustment of pupil sight line measuring section. The pupil line-of-sight measuring section 23 and the adjustment end 22B are controlled to relatively move or rotate relative to each other, so that the pupil line-of-sight measuring section 23 is moved to the line of sight X1, X2 where the line of sight measuring hole 231 is located. [b] Adjustment of pupil sight line measurement frame. Unscrew the corresponding first fixing portion 24 to control the relative movement of the movable frame portion 22 and the frame groove 211, so as to fine-tune the pupil sight line measuring portion 23 to the sight line measuring hole 231 at the sight lines X1, X2 On one of them.复转紧The first fixing portion 24. [b] Adjustment of telescopic adjustment components. Unscrew the corresponding second fixing portion 33, control the telescopic rod portion 32 and the fixing tube portion 31 to expand and contract to an appropriate position, and re-tighten the second fixing portion 33. After at least one of the three adjustment actions described above, the pupil sight measuring section 23 rotates to the sight measuring aperture 231 at two positions of 180 degrees (horizontal) and 90 degrees (vertical), which should be visible The optotype G. Repeat the same action to measure the other eye in this way. When both eyes 92 are opened at the same time, two sight lines X1 and X2 can be focused on the visual mark G (as shown in FIG. 7). In such a process, the wearer rotates and moves the pupil gaze measurement unit 23 consciously, thereby determining the position of the visual center. Referring to FIG. 7, at this time, the two sight line measuring holes 231 have a sight line point A and B, respectively, and a sight line distance H between them. The two lenses 91 respectively have a mirror axis point C and D, and a mirror axis distance FPD (also can be said to be the two geometric center distances of the two circular frame portions 11) between them. The two pairs of eyes 92 have pupil positions E and F, respectively, and a pupil distance PD between them. There is a first distance M1 between the optotype G and the pupil sight measuring frame 20, there is a second distance M2 between the pupil sight measuring frame 20 and the optical main frame 1, the optical main frame 1 and the eyes There is a third distance M3 between 92, and through the calculation of similar triangles, the following relationship is produced: GA: H=GC: FPD=GE: PD. M1: H=(M1+M2): FPD=(M1+M2+M3): PD. That is, finally, the pupil distance PD and the two geometric center distances of the two circular frame portions 11 (that is, the mirror axis distance FPD) can be estimated and confirmed. The fusion image of the eyes 92 can be further improved to make the wearer's visual experience more comfortable. In addition, the distance of the center of rotation of the eyeball can also be calculated in this case. Please refer to FIG. 13, first define the center points J and K of the eyes, assuming that the optotype G is a distant optotype (for example, M1 is 500 cm), after determining the fusion of the two eyes 92 through the aforementioned method, you can change Relevant data is recorded. After that, the original visual target G is moved toward the wearer to become a near visual target G', and there is a near first distance M1' between the near visual target G'and the pupillary sight measuring frame 20 (assuming 250 cm), and after determining the fusion of the eyes 92 through the aforementioned method, the relevant data can be recorded. Using the geometric relationship between the triangle GJK and the triangle G'JK, the angle between GA and GB can be known from the known M1 and AB; in the same way, the known M1' and the near-sight hole points A'and B' Obtain the angle between G'A' and G'B' (similarly, the angle between G'C' and G'D' can be obtained from the position of the near mirror axis C'and D'). Using known mathematical calculations (well-known techniques, which will not be described in detail), the common base JK (that is, the distance of the center of rotation of the eyeball) of the triangle GJK and the triangle G'JK can be solved. Therefore, the case also has the ability to calculate the eyeball rotation The effect of center distance. This data is very helpful for the field of optometry. The advantages and effects of the present invention are as follows: [1] Conscious measurement of interpupillary distance is more in line with actual visual experience. The invention is provided with an adjustable optical main frame, a pupil sight measurement frame and a telescopic adjustment component. After adjustment of each component, the wearer can see clearly through the sight measurement hole consciously and clearly during the rotation process Observation mark, and then record the adjusted data of each component, cooperate with the lens installation on the frame and adjust, can better present the various data at the time of optometry, and then improve the comfort of wearing glasses. Therefore, the conscious interpupillary distance measurement is more in line with the actual visual experience. [2] No high cost and low equipment cost. The invention is composed of known optometry equipment (such as optical main frame and lens) and simple bracket structure (pupil sight measurement frame and telescopic adjustment assembly), without complicated electronic equipment, without cumbersome operation steps, as long as it can perform optometry Used by wearers. Therefore, there is no need for expensive equipment and low cost. [3] The distance of the center of rotation of the eyeball can be calculated. As long as two operations (a far vision target and a near vision target) are performed, the geometric relationship between the two triangles can be used to calculate the distance of the center of rotation of the eyeball through mathematical calculations, which is very helpful in the field of optometry and optics . The above is only a detailed description of the present invention through the preferred embodiment. Any simple modifications and changes made to this embodiment will not deviate from the spirit and scope of the present invention.

1: Optical main frame 10A: trial frame 10B: General glasses 111: Central frame 11: Round frame part 12: Lens engagement part 20: Pupil sight measurement frame 21: Main body 211: Frame slot 22: Second activity frame 22A: Insert the end 22B: Adjust the end 221: Upper groove 222: Lower groove 23: Pupil sight measurement unit 231: line of sight measuring hole 24: First fixed part 30: Telescopic adjustment components 31: fixed tube 32: Telescopic pole 33: Second fixed part 40: Spectacles 50: Optometry bracket 51: fixed frame body 52: Chin bar 53: Forehead hits the bar 91: Lens 92: eyes G: visual mark G’: near vision X1, X2: line of sight A, B: point of sight hole A’, B’: the location of the near sight hole C, D: Mirror axis point C’, D’: Position of the near mirror axis J, K: the center point of both eyes H: distance of sight hole FPD: Mirror axis distance E, F: pupil point PD: pupil distance M1: first distance M1’: the first distance in the vicinity M2: second distance M3: third distance

Figure 1 is an exploded schematic view of the present invention Figure 2A is a partial cross-sectional view of the telescopic adjustment assembly of the present invention Figure 2B is a partial cross-sectional view of the pupil sight measuring frame of the present invention Figure 3 is a schematic diagram of the corresponding relationship between the binocular sight line of the present invention and the lens axis and sight line measuring hole Figure 4 is a schematic diagram of the first embodiment of the trial frame of the present invention Figure 5 is a schematic diagram of a second embodiment of the trial frame of the present invention Figure 6 is a schematic diagram of an application example of the present invention Figure 7 is a schematic diagram of the correspondence between the components of Figure 6 Figure 8 is a schematic diagram of the optical main frame of the present invention FIG. 9 is an example of application of a ruler to measure the relative horizontal movement adjustment distance between the insertion end and the frame groove of the present invention Fig. 10 is an application example of the relative position of the telescopic rod part and the fixed tube part of the present invention with a ruler to measure the relative movement adjustment distance FIG. 11A is a schematic diagram of an application example of level sensing of general glasses of the present invention Figure 11B is a schematic diagram of other angles of Figure 11A FIG. 12 is a schematic diagram of an application example of the front tilt sensing of general glasses of the present invention Fig. 13 is a schematic diagram of an application example of detecting the rotation center of the eyeball of the present invention

1: Optical main frame

10A: trial frame

11: Round frame part

111: Central frame

12: Lens engagement part

20: Pupil sight measurement frame

21: Main body

211: Frame slot

22: Second activity frame

22A: Insert the end

22B: Adjust the end

221: Upper groove

222: Lower groove

23: Pupil sight measurement unit

231: line of sight measuring hole

24: First fixed part

30: Telescopic adjustment components

31: fixed tube

32: Telescopic pole

33: Second fixed part

40: Spectacles

91: Lens

Claims (6)

A self-conscious interpupillary distance measuring device, including: An optical main frame, selected from one of trial frames and general glasses; When selected from the trial frame, it has two round frame parts and four lens engaging parts; the four lens engaging parts are respectively arranged on the two round frame parts, and are respectively used for inserting at least one lens; When selected from the general glasses, it has the two round frame parts, and each round frame part is provided with the lens; each lens is used to correspond to one of the eyes of the wearer's eyes; A pupil sight measuring frame corresponding to the optical main frame, the pupil sight measuring frame has a body part, two movable frame parts, two pupil sight measuring parts and two first fixing parts; the body part corresponds to two The movable frame portion has at least one frame slot, and each movable frame portion has an insertion end and an adjustment end facing away from each other, and the insertion end is for the movable frame portion to be inserted in the The frame groove can be adjusted relative to the horizontal movement; the adjustment end is for the pupil sight measuring part to be inserted, and can be relatively moved, and can be relatively rotated, the pupil sight measuring part has a sight measuring hole, which corresponds to the double In one of the eyes of the eye, each second fixing portion is screwed on the body portion, and when the corresponding horizontal movement of the movable frame portion and the frame groove is adjusted to be positioned horizontally, it is used to screw and fix the Activity frame A plurality of telescopic adjustment components are respectively pivotally arranged between the optical main frame and the pupil sight measuring frame; each telescopic adjustment component follows one of the sight lines of the two eyes to independently adjust the optical The distance between the main frame and the pupil sight measuring frame; In this way, when the line of sight of the eyes of the wearer is respectively viewed through the at least two lenses and the two line of sight measuring holes, a visual mark can be obtained so that the pupil distance of the eyes can be obtained through the calculation of similar triangles And the structure of the distance between the two geometric centers of the two circular frame parts. A self-conscious interpupillary distance measuring device as described in item 1 of the patent application scope, in which: The trial frame is one of glasses-type trial frame, comprehensive refractometer trial frame, and desktop trial frame; When it is a glasses-type trial frame, it also includes a central frame body and a pair of spectacle legs; the opposite inner sides of the two circular frame portions are respectively inserted into the central frame body, and can be relatively moved and adjusted respectively, and can correspond Adjusting the line of sight of each eye of the lens corresponding to the wearer; the pair of spectacle legs extend from the trial frame and are opposite to the plurality of horizontal extension adjustment components, and the pair of spectacle legs are provided for the matching Wearers wear; When the trial frame is a comprehensive refractometer, the trial frame is fixed to the comprehensive refractometer; When it is a desktop trial frame, it further includes an optometry bracket, which extends from the trial frame and is opposite to the plurality of horizontal extension adjustment components. The optometry bracket includes a fixed frame body and a jaw A support bar and a forehead support bar. The chin support bar and the forehead support bar respectively extend from the fixed frame for the wearer's chin and head to bear against. The self-conscious interpupillary distance measuring device as described in item 2 of the patent application scope, in which: The frame groove is one of a single channel structure and a two blind hole structure; If it is a single-channel structure, it corresponds to two movable frame parts, and the body part penetrates laterally; If it is a two-blind hole structure, it corresponds to two movable frame parts, and each is recessed laterally in the body part. The self-conscious interpupillary distance measuring device as described in item 2 of the patent application scope, in which: Each adjusting end has a corresponding upper groove and a lower groove; the upper and the lower grooves are used for the pupil sight measuring part to be installed and positioned; The pupil sight measuring part is a circular plate corresponding to the upper and lower grooves. A self-conscious interpupillary distance measuring device as described in item 4 of the patent application scope, in which: The pupil line-of-sight measuring unit is a Martens mirror; The pupil sight measuring hole is one of a long hole, a pinhole, and an optical measuring hole; Thereby, when an external force is received, the pupil sight measuring unit can be rotated to a predetermined angle in situ; The first fixing part is a screw structure. The self-conscious interpupillary distance measuring device as described in item 2 of the patent application scope, in which: Each telescopic adjustment component has a fixed tube portion, a telescopic rod portion and a second fixed portion; each fixed tube portion is pivotally connected to the optical main frame at one end, and the telescopic rod portion is telescopically inserted at one end At the other end of the fixed tube part, and the telescopic rod part is pivotally connected to one of the two movable frame parts of the body part at the other end; the second fixed part is screwed on the fixed tube part when the telescopic rod After the telescopic part and the fixed tube part are telescopically positioned, they are used to screw and fix the telescopic rod part; The second fixing part is a screw structure.

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