Head-mounted optical magnification device

Abstract

To provide a head-mounted optical magnifying device which is small in volume and easy to use. [Solution] The head-mounted optical magnifying device includes a head frame unit 1 including a front frame rod 11, a mirror frame unit 2 installed in front of the head frame unit 1 and including two support arms 21 installed at a distance from each other on the left and right, a mirror unit 3 including a first mirror assembly 31 installed on the two support arms 21 and a second mirror assembly 32 installed in front of the first mirror assembly 31, and a weight unit 4 including a top weight 41 installed on the front frame rod 11, the top weight 41 having a proximal end installed on the front frame rod 11 and a distal end opposite the proximal end, and the mirror unit 3 forms an optical path that reflects light from an object to the first mirror assembly 31, then from the first mirror assembly 31 to the second mirror assembly 32, and then from the second mirror assembly 32 to the user's eyes.

Description

[Technical Field]

[0001] The present invention relates to optical devices, and more particularly to head-mounted optical magnification devices. [Background technology]

[0002] With the spread of mobile phones and tablets, people are increasingly looking at small letters at close range for long periods of time, which is causing their eyesight to deteriorate.

[0003] Furthermore, in order to clearly see the small characters on the mobile phone, users unconsciously tilt their heads forward, which causes an unnatural bending of the cervical vertebrae.

[0004] To overcome the short-distance eye use and poor viewing posture, optical magnification devices can be used to provide a more comfortable viewing experience for the user.

[0005] For example, Patent Document 1 discloses an anti-myopia viewing device that includes a mounting frame that is installed on the ground, a first mirror that is attached to the top side of the mounting frame and is located above a desk, and a second mirror that is spaced apart from the first mirror so that they face each other.

[0006] When a user places a book on the desk, the contents of the book can be reflected to the user's eyes by the reflection between the first mirror and the second mirror. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Chinese Utility Model No. 218099783 Summary of the Invention [Problem to be solved by the invention]

[0008] However, the viewing device according to Patent Document 1 has a drawback in that the mounting frame is large in volume, takes up too much space, and is inconvenient. SUMMARY OF THE INVENTION The object of the present invention is to provide a head-mounted optical magnifying device that is small in volume and easy to use. [Means for solving the problem]

[0009] The present invention is a head-mounted optical magnifying device suitable for being worn on a user's head to reflect a magnified image of an object to the user's eyes,

[0010] a head frame unit that is to be worn on the user's head by being hung around the user's head so as to surround the user's head, and that includes a front frame rod that is to be brought into contact with the user's forehead;

[0011] a lens barrel unit including two support arms that are installed in front of the head frame unit along the front-rear direction and spaced apart in the left-right direction;

[0012] a mirror unit that is installed in the lens barrel unit and includes a first mirror assembly that is installed on the two support arms along the left-right direction, and a second mirror assembly that is installed in front of the first mirror assembly in the front-rear direction; A weight unit that is installed on the head frame unit and includes a top weight that is installed on the front frame bar, The top weight has a proximal end attached to the front frame rod and a distal end opposite the proximal end, extending rearward and configured to be positioned above the user's head when worn by the user, The mirror unit is configured to form an optical path that reflects from an object to the first mirror assembly, then from the first mirror assembly to the second mirror assembly, and then from the second mirror assembly to a user's eye. [Effects of the Invention]

[0013] The head-mounted optical magnifying device of the present invention allows the user to simply wear the head frame unit on their head and view a magnified image of an object in the second mirror, thereby maintaining correct posture and preventing the head from tilting forward.

[0014] At the same time, by using the near end of the top weight of the weight unit as a fulcrum for supporting the front frame rod, the front frame rod will not slide downward due to the weight of the mirror unit, resulting in a better wearing comfort. The present invention is a head-mounted optical magnifying device, so it is small in volume, not affected by space, easy to carry and use, and can be worn stably. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a diagram showing an embodiment of a head-mounted optical magnifying device according to the present invention worn on a user's head for magnifying and viewing an object; [Figure 2] FIG. 2 is a perspective view showing the embodiment. [Figure 3] FIG. 2 is a perspective view of the embodiment as viewed from the rear to the front. [Figure 4] FIG. 2 is an exploded view of the above embodiment. [Figure 5] FIG. 2 is a cross-sectional view taken along line VV in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5. [Figure 7] FIG. 2 is a partial cross-sectional view of the embodiment. [Figure 8] 8 is a cross-sectional view similar to FIG. 7, showing how the top weight of the embodiment is bent. FIG. [Figure 9] FIG. 3 is a perspective view similar to FIG. 2, showing an example of change in the top weight. DETAILED DESCRIPTION OF THE INVENTION

[0016] Before describing the present invention in more detail, it should be noted that, where considered appropriate, reference numerals or terminal portions of reference numerals have been repeated among the figures to indicate corresponding or analogous elements, which may optionally have similar characteristics.

[0017] In describing the present invention, terms indicating orientations or positional relationships such as "upper," "lower," "inner," "outer," "left," "right," "front," and "rear" are used based on the orientations and positional relationships shown in the drawings or the orientations and positional relationships customarily assumed when using the product of the present invention, for the purpose of easier and clearer explanation, and are not intended to teach or suggest that the corresponding apparatus or device has a specific orientation, structure, operation, etc. in a specific orientation, and are not a limitation on the present invention.

[0018] Furthermore, in describing the present invention, terms such as "first" and "second" are used for distinction purposes only and do not teach or imply relative importance.

[0019] As shown in FIGS. 1 and 2, an embodiment of the head-mounted optical magnifying device of the present invention is adapted to be worn on the head of a user 91 and to reflect a magnified image of an object 92 to the eyes of the user 91.

[0020] The head-mounted optical magnifying device includes a head frame unit 1, a mirror frame unit 2, a mirror unit 3, and a weight unit 4.

[0021] The head frame unit 1 is intended to be worn on the head of the user 91 by being hung around the head of the user 91 so as to surround the head of the user 91.

[0022] The head frame unit 1 also includes a front frame bar 11 for contacting the forehead of the user 91, two side frame bars 12, and a headband 13 for contacting the back of the user's head.

[0023] As shown in FIGS. 2 to 5, the front frame bar 11 has a middle portion 111 and two side portions 112 formed on both the left and right sides of the middle portion 111 in the left-right direction Y.

[0024] The intermediate portion 111 has a tank 113 and a hole 114 located in the tank 113 and extending along the front-rear direction X.

[0025] In some embodiments, the front frame bar 11 further includes a cushion 115 formed on the inside, which can provide a soft feel and anti-slip properties.

[0026] The two side frame bars 12 are pivotally connected to opposite ends of the front frame bar 11 with a gap in the left-right direction Y, and each extends rearward (to the left in FIG. 5) from the front frame bar 11 in the front-to-rear direction.

[0027] The headband 13 connects the ends of the two side frame bars 12 on the side opposite to the front frame bar 11 side.

[0028] In some embodiments, each side bar 12 has a temple 121 and a soft cushion 122 located inside the temple 121, and in this embodiment, the temple 121 is made of a plastic material.

[0029] The soft cushion 122 may be, for example, but is not limited to, a foam material, and the soft cushion 122 can provide a soft feel and anti-slip functionality.

[0030] In this embodiment, the headband 13 has a band body 131 and two fasteners 132 fastened to each side bar 12 and formed on both the left and right sides of the band body 131 .

[0031] In some embodiments, the band body 131 is an elastic band or a nonwoven fabric band, and each fastener 132 is a hook-and-loop fastener that is inserted into the rear end of the corresponding side frame bar 12, where a hole is formed, and then attached, as shown in Figures 3 to 5, so that the length of the headband 13 can be adjusted.

[0032] Each side frame bar 12 is pivotally connected to the front frame bar 11 and the length of the headband 13 can be adjusted, so that the headband can be adapted to different head circumferences and the fit when worn can be improved.

[0033] The lens barrel unit 2 is basically installed in front of the head frame unit 1 along the front-rear direction X.

[0034] The lens barrel unit 2 also includes two support arms 21 spaced apart in the left-right direction Y, and an attachment arm 22 located between the two support arms 21 and connected to the two support arms 21 along the left-right direction Y.

[0035] As shown in Figure 2, each support arm 21 has a connecting portion 211 connected to the front frame bar 11, an extension portion 212 connected to the connecting portion 211, and an axis 213 inserted into the extension portion 212 along the left-right direction Y.

[0036] In this embodiment, the connecting portion 211 of each support arm 21 is integrally connected to the front frame rod 11, and extends forward from the front frame rod 11 and then curves downward.

[0037] The extension portion 212 of each support arm 21 is integrally connected to the connection portion 211 and extends essentially horizontally.

[0038] Also in this embodiment, the mounting arm 22 is connected to the extension 212 of the support arm 21 .

[0039] 3 to 5, the mirror unit 3 is installed in the lens barrel unit 2. The mirror unit 3 also includes a first mirror assembly 31 installed on two support arms 21 along the left-right direction Y, and a second mirror assembly 32 installed in front of the first mirror assembly 31 in the front-rear direction X and attached to the attachment arm 22.

[0040] In this embodiment, the first mirror assembly 31 has its upper end hooked onto the axis 213 of each support arm 21 to fix its position, and is rotatable around the axis 213 as the rotation axis, so that the first mirror assembly 31 can swing back and forth to change the tilt angle.

[0041] The first mirror assembly 31 has a first mirror seat 311 that is pivotally connected to the shaft 213 so as to be freely rotatable, and a reflecting mirror 312 that is fixed to the outside of the first mirror seat 311 .

[0042] The second mirror assembly 32 has a second mirror base 321 attached to the mounting arm 22, and a magnifying glass 322 fixed inside the second mirror base 321 and having a magnifying function.

[0043] The magnifying mirror 322 and the reflecting mirror 312 face each other.

[0044] In some embodiments, but not limited to, the reflecting mirror 312 is a convex mirror and the magnifying mirror 322 is a concave mirror.

[0045] As shown in FIG. 1 , the mirror unit 3 forms an optical path that reflects from the object 92 to the first mirror assembly 31, then from the first mirror assembly 31 to the second mirror assembly 32, and then from the second mirror assembly 32 to the eye of the user 91.

[0046] A user 91 can view a magnified image of an item 92 in the second mirror assembly 32 .

[0047] By magnifying the image of the article 92 with the mirror unit 3, the user 91 can easily and clearly see the magnified image, and can maintain a correct posture and prevent the head from tilting forward.

[0048] 4 to 6, the weight unit 4 is installed in the head frame unit 1. The weight unit 4 also includes a top weight 41, a first weight 42, a second weight 43, and an adjustment assembly 40.

[0049] The mirror unit 3 has a first mirror assembly 31 and a second mirror assembly 32, and since the head frame unit 1 is heavy on the front side, a weight unit 4 is installed on the head frame unit 1 to balance the weight.

[0050] The top weight 41 is elongated as shown in Fig. 4. The top weight 41 has a proximal end 411 attached to the front frame bar 11 and a distal end 412 that is the opposite end of the proximal end 411, extends rearward, and is located above the head of the user 91 in the vertical direction Z.

[0051] In some embodiments, the distal end 412 is located on the top of the user's head.

[0052] The arcuate structure between the distal end 412 and the proximal end 411 is formed to fit the top of the user's 91 head as closely as possible.

[0053] In some embodiments, the top weight 41 is formed in an arc, and the arc between the distal end 412 and the proximal end 411 is as close as possible to the top of the user's 91 head.

[0054] The top weight 41 has a hard sheet 413 and a soft sheet 414 placed inside the hard sheet 413.

[0055] In some embodiments, the soft sheet 414 is, but is not limited to, a foam material to provide better comfort.

[0056] The first weight 42 is enclosed within the band body 131 of the headband 13.

[0057] In some embodiments, the first weight 42 is, but is not limited to, metal sand.

[0058] In this embodiment, the first weight 42 is iron sand and is loaded into the band body 131 . The first weight 42 is located on the opposite side to the mirror unit 3 in the front-rear direction X. Two second weights 43 are respectively mounted on two side bars 12 . In this embodiment, each second weight 43 is enclosed within the temple 121 of the corresponding side bar 12, but it may also be sandwiched between the temple 121 and the soft cushion 122, or enclosed within the soft cushion 122.

[0059] In some embodiments, the second weight 43 is an iron sheet or iron block.

[0060] As shown in Figures 1, 5 and 7, by using the near end 411 of the top weight 41 as a fulcrum that supports the front frame bar 11, the front frame bar 11 does not slide downward due to the weight of the mirror unit 3.

[0061] The first weight 42 and the second weight 43 are located at the back and on both the left and right sides of the head, forming three-point support, and the top weight 41 also has a balancing effect in the vertical direction Z and the front-to-back direction X. Therefore, the head frame unit 1, due to the three-dimensional arrangement of the weight unit 4, counters (i.e., cancels) the downward force caused by the weight of the mirror unit 3, making it difficult for the front frame rod 11 to slip downward, resulting in a better fit, and preventing the head frame unit 1 from shifting or tilting due to shaking of the user's 91's head or changes in posture, thereby improving the stability of the fit.

[0062] In other variations, the number of first weights 42 and second weights 43 can be increased or decreased, their installation positions can be adjusted, and their weights and materials can be changed, as long as the effect of resisting the downward force caused by the weight of the mirror unit 3 and preventing the front frame rod 11 from sliding downward can be achieved.

[0063] 4 and 6, the adjustment assembly 40 is attached to the front frame bar 11 and the top weight 41. The adjustment assembly 40 also has an adjustment portion 401 and a cover 402.

[0064] The adjustment part 401 has a rod body 403 inserted into the hole 114 in the middle part 111 of the front frame bar 11 and positioned so that it can move back and forth, and a rotatable plate-shaped body 404 fixed to the rod body 403.

[0065] In some embodiments, the adjustment portion 401 is integrally formed, but is not limited to this.

[0066] The rod body 403 is a screw rod and abuts against the proximal end 411 of the top weight 41 along the front-rear direction X.

[0067] The cover 402 is positioned on the tank 113 while being engaged with the front frame rod 11, and hides the lower half of the adjustment part 401 at the front side.

[0068] As a result, the upper half of the disk-shaped body 404 is exposed from the lid 402, and the user 91 (shown in FIG. 1) can rotate the disk-shaped body 404 by hand.

[0069] In other variations, the adjustment assembly 40 can be a spring pin or other positionable connector.

[0070] As shown in Figures 7 and 8, the adjustment part 401 is rotated and the rod body 403 presses the proximal end 411 of the vertex weight 41, thereby adjusting the height of the distal end 412 of the vertex weight 41 in the vertical direction Z and the degree of bending of the vertex weight 41.

[0071] For example, the position of the rod body 403 of the adjustment part 401 in Figure 8 is shifted further back than the position of the rod body 403 shown in Figure 7, so the height of the distal end 412 of the top weight 41 in the vertical direction Z decreases, and the degree of bending of the top weight 41 changes.

[0072] Therefore, the user 91 can adjust the degree of fit between the top weight 41 and the head according to the shape of the user's head, thereby improving the wearing comfort.

[0073] It should be noted that in some embodiments, the weight unit 4 may omit the adjustment assembly 40.

[0074] As shown in FIG. 9, in some embodiments, the shape of the top weight 41 can be modified, for example, but not limited to, being configured in a T-shape.

[0075] The top weight 41 shown in FIG. 9 has two wings 415 located at the far end 412 and spaced apart in the left-right direction Y.

[0076] Each wing portion 415 extends along the left-right direction Y, thereby improving the balance and stability of the wearing. According to the above configuration, the present invention is a head-mounted optical magnifying device, which is small in volume, not affected by location, highly convenient to carry and use, and can be worn stably.

[0077] The user 91 simply puts the head frame unit 1 of the present invention on his / her head, and can see an enlarged image of the object 92 in the mirror unit 3, allowing the user 91 to easily view the object while maintaining a correct posture.

[0078] In addition, taking into account the weight of the mirror unit 3, the present device installs a weight unit 4 on the head frame unit 1 to counteract the downward force caused by the weight of the mirror unit 3, and by using the near end 411 of the top weight 41 as a fulcrum supporting the front frame rod 11, it is possible to effectively prevent the head frame unit 1 from tilting forward, shifting in position, or tilting, thereby improving the stability of the fit. Therefore, the object of the present invention can be reliably achieved.

[0079] The above-described embodiments are illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Those skilled in the art may make slight changes or modifications to the above-described embodiments without departing from the spirit and scope of the present invention. Therefore, all changes and modifications made by those skilled in the art without departing from the gist of the present invention should be considered to fall within the scope of protection of the present invention. [Industrial Applicability]

[0080] The head-mounted optical magnifying device of the present invention is suitable for magnifying and viewing objects. [Explanation of symbols]

[0081] 1 Head frame unit 11 Front frame bar 111 Middle section 112 Side 113 tank 114 holes 115 cushion 12 Side frame rod 121 Temple 122 Soft Cushion 13 Headband 131 Band body 132 fasteners 2 Lens barrel unit 21 Support arm 211 Connection part 212 Extension section 213 axes 22 Mounting arm 3 Mirror unit 31 First mirror assembly 311 First Mirror Seat 312 Reflector 32 Second mirror assembly 321 Second Mirror Seat 322 Magnifying Glass 4 weight units 41 Top Weight 411 Near end 412 Distal end 413 Hard Sheet 414 Soft Sheet 415 Wings 42 First Weight 43 Second Weight 40 Adjustment Assembly 401 Adjustment section 402 Lid 403 Rod 404 Disc-shaped body X Anteroposterior direction Y left / right direction Z vertical direction 91 User 92 Goods

Claims

1. a head-mounted optical magnifying device adapted to be worn on a user's head to reflect a magnified image of an object to the user's eye; a head frame unit that is to be worn on the user's head by being hung around the user's head so as to surround the user's head, and that includes a front frame rod that is to be brought into contact with the user's forehead; a lens barrel unit including two support arms that are installed in front of the head frame unit along the front-rear direction and spaced apart in the left-right direction; a mirror unit that is installed on the lens barrel unit and includes: a first mirror assembly that is installed on the two support arms along the left-right direction; and a second mirror assembly that is installed in front of the first mirror assembly in the front-rear direction; A weight unit that is installed on the head frame unit and includes a top weight that is installed on the front frame bar; Including, The top weight has a proximal end attached to the front frame rod and a distal end opposite the proximal end, extending rearward and configured to be positioned above the user's head when worn by the user, A head-mounted optical magnification device, wherein the mirror unit is configured to form an optical path that reflects from an object to the first mirror assembly, then from the first mirror assembly to the second mirror assembly, and then from the second mirror assembly to a user's eye.

2. the head frame unit further includes two side bars and a headband; The two side frame bars are spaced apart in the left-right direction and extend from opposite ends of the front frame bar along the front-rear direction; 2. The head-mounted optical magnifying device according to claim 1, wherein the headband connects the ends of the two side frame bars opposite the front frame bar and is adapted to abut against the back of the user's head.

3. The weight unit further includes an adjustment assembly attached to the front frame bar and the top weight; The adjustment assembly has a rod that can move back and forth, 2. A head-mounted optical magnifying device as described in claim 1, wherein the rod body abuts against and pushes against the proximal end of the top weight along the front-to-back direction, thereby adjusting the vertical height of the distal end of the top weight.

4. The front frame rod has a hole through which the rod body is inserted so that it can move, the adjustment assembly further includes an adjustment portion and a lid; the adjustment unit includes the rod body and a rotatable disk-shaped body fixed to the rod body, 4. The head-mounted optical magnifying device according to claim 3, wherein the cover is attached to the front frame rod and hides the lower half of the adjustment unit at the front side.

5. 2. The head-mounted optical magnifying device according to claim 1, wherein the top weight is formed in an arc shape and comprises a hard sheet and a soft sheet disposed inside the hard sheet.

6. The head-mounted optical magnifying device according to claim 2 , wherein the weight unit further includes a first weight mounted on the headband.

7. 7. The head-mounted optical magnifying device of claim 6, wherein the first weight is metal sand.

8. 3. The head-mounted optical magnifying device of claim 2, wherein the weight unit further includes two second weights, one mounted on each of the two side bars.

9. 9. The head-mounted optical magnification device of claim 8, wherein the second weight is an iron sheet or an iron block.

10. Each of the support arms has a connecting portion connected to the front frame rod, an extending portion connected to the connecting portion, and a shaft inserted into the extending portion, the first mirror assembly is pivotally connected to the axis of each of the support arms; the lens barrel unit further includes a mounting arm connected to the extensions of the two support arms along the left-right direction, The head-mounted optical magnification device of claim 1 , wherein the mounting arm has the second mirror assembly mounted thereon.

11. 2. The head-mounted optical magnifying device according to claim 1, wherein the top weight is configured in a T-shape and has two wing portions located at the far end and spaced apart in the left-right direction.

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