Optical Magnification Device

Abstract

To provide an optical magnifying device suitable for reflecting a magnified image of an object to a user's eye. [Solution] The optical magnifying device includes a support unit 1, a lens barrel unit 2 including two support arms mounted on the support unit 1 and spaced apart, and an attachment arm 22 extending along the left-right direction and connected to the two support arms, and a mirror unit 3 including an objective lens assembly 31 mounted on the lens barrel unit 2 and mounted on the two support arms, and an ophthalmoscope assembly 32 removably attached to the attachment arm 22 and facing the objective lens assembly 31 so that there is a gap between them, the ophthalmoscope assembly 32 having a first positioning portion removably connected to the attachment arm 22, and the mirror unit 3 is configured to form an optical path that constructs a magnified image of an object and reflects the magnified image at the ophthalmoscope assembly 32 to the user's eyes.

Description

[Technical Field]

[0001] FIELD OF THE INVENTION The present invention relates to optical devices, and more particularly to optical magnifying devices with interchangeable mirrors. [Background technology]

[0002] Patent document 1 discloses an anti-myopia reading device that can be used when a user reads a book at a desk, and this anti-myopia reading device includes an adjustment mechanism installed on the ground, an eyepiece attached to the top side of the adjustment mechanism and located above the desk, and an objective lens that is spaced apart from the eyepiece so that they face each other.

[0003] The adjustment mechanism includes a support arm, a mounting frame pivotally connected to the upper end of the support arm and on which the objective is mounted, and connecting shafts pivotally connected to opposite ends of the mounting frame and on which the objective is mounted, the objective and the ocular are connected to each other so as to be rotatable about the connecting shafts.

[0004] When a user places a book on a desk, the contents of the book can be reflected to the user's eyes by reflection between the objective and ocular mirrors.

[0005] When reading a book using the viewer according to Patent Document 1, the viewing distance can be extended to ensure a correct viewing posture, but since the size and curvature of the objective lens and the ocular lens are fixed, it can only be applied to situations where a book is read at a desk, and there are few situations in which it can be applied, making it inconvenient. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Chinese Utility Model No. 218099783 Summary of the Invention [Problem to be solved by the invention]

[0007] SUMMARY OF THE INVENTION It is an object of the present invention to provide an optical magnifying device that is easy to use and allows for interchangeable mirrors. [Means for solving the problem]

[0008] The present invention is an optical magnifying device adapted to reflect a magnified image of an object to a user's eye, A support unit; a lens barrel unit that is installed on the support unit and includes two support arms that are installed with a gap in the left-right direction, and an attachment arm that extends along the left-right direction and is connected to the two support arms; a mirror unit that is mounted on the lens barrel unit and includes an objective mirror assembly mounted on the two support arms, and an ophthalmoscope assembly that is replaceably mounted on the mounting arm and faces the objective mirror assembly in the front-to-rear direction with a gap therebetween; the ophthalmic assembly has a first positioning portion removably coupled to the mounting arm; The mirror unit is configured to form an optical path for constructing a magnified image of an object and for reflecting the magnified image at the ophthalmic assembly to the eye of a user, thereby providing an optical magnifying device. [Effects of the Invention]

[0009] The optical magnifying device of the present invention allows the ophthalmic assembly to be changed depending on the usage situation, such as reading a book at a desk, looking at a laptop, playing the piano, looking at a large monitor in front of a class, reading a book while lying down, sitting and looking at a cell phone, or inspecting goods.

[0010] The user can select an appropriate binoculars assembly and connect it to the mounting arm using the first positioning part to achieve a positioning effect through mounting, which allows the user to view a magnified image of the object through the mirror unit, and is not affected by location and can change the binoculars assembly according to the usage situation, which is highly convenient. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a diagram showing the first embodiment of the optical magnifying device of the present invention worn on a user's head for magnifying and viewing an object; FIG. [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 an exploded view of the embodiment from the rear to the front. [Figure 6] FIG. 3 is a cross-sectional view showing the mirror unit of the embodiment. [Figure 7] FIG. 7 is a cross-sectional view similar to FIG. 6, showing the state of use. [Figure 8] 7 is a cross-sectional view similar to FIG. 6, showing a different use situation. [Figure 9] 7 is a cross-sectional view similar to FIG. 6, showing a different use situation. [Figure 10] 7 is a cross-sectional view similar to FIG. 6, showing a different use situation; [Figure 11] 10A and 10B are diagrams showing how the top weight bends when using the above embodiment. [Figure 12] FIG. 2 is a cross-sectional view taken along line XII-XII in FIG. [Figure 13] FIG. 10 is a diagram showing a variation of the above embodiment. [Figure 14] 10 is a diagram showing the second embodiment of the optical magnification device of the present invention worn on the head and shoulders of a user. [Figure 15] FIG. 15 is a side view of FIG. [Figure 16] FIG. 15 is a top view of FIG. [Figure 17] FIG. 10 is a view showing the third embodiment of the optical magnifying device of the present invention placed on the ground. [Figure 18] FIG. 2 is a perspective view of the embodiment. [Figure 19]FIG. 10 is a diagram showing the fourth embodiment of the optical magnification device of the present invention placed on a desktop. DETAILED DESCRIPTION OF THE INVENTION

[0012] 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.

[0013] 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.

[0014] 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.

[0015] As shown in Figures 1 to 3, a first embodiment of the optical magnifying device of the present invention is suitable for being worn on the head of a user 91 to reflect a magnified image of an object 92 to the eyes of the user 91.

[0016] The optical magnifying device of the present invention includes a support unit 1, a lens barrel unit 2, a mirror unit 3, and a weight unit 4.

[0017] The support unit 1 includes a head frame 101 to be hung around the head of the user 91 so as to surround the head of the user.

[0018] The head frame 101 includes a front frame bar 11 for contacting the forehead of the user, two side frame bars 12 spaced apart from each other in the left-right direction and attached to the front frame bar 11, and a headband 13 connected to the two side frame bars 12 and for contacting the back of the head of the user 91.

[0019] In this embodiment, the headband 13 has a band body 131 and two fasteners 132 formed on both the left and right sides of the band body 131.

[0020] In some embodiments, the band body 131 is an elastic band or a nonwoven 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 2 and 3, so that the length of the headband 13 can be adjusted according to the head size of the user 91.

[0021] In some embodiments, the head frame 101 further includes a plurality of cushions 14 positioned inside the front frame bar 11 and each side frame bar 12 .

[0022] Each cushion 14 may be made of, for example, but not limited to, a foam material, which may provide the cushion 14 with a soft feel and anti-slip properties.

[0023] In some embodiments, the head frame 101 can omit the headband 13, in which case each side frame bar 12 can be designed as an earhook-type temple to be attached to the head.

[0024] 2, 4, and 5, lens barrel unit 2 is installed in front of head frame 101 along the front-rear direction X. Lens barrel unit 2 also includes two support arms 21 installed at an interval in the left-right direction Y, and an attachment arm 22 located between the two support arms 21, extending along the left-right direction Y, and connected to the two support arms 21.

[0025] 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.

[0026] The attachment arm 22 has an arm portion 221 and at least one magnetic attraction member 222 fixed to the arm portion 221 and capable of being attracted by magnetic force.

[0027] In this embodiment, the arm portion 221 of the mounting arm 22 has a rectangular protrusion 223 (see Figure 4) that protrudes forward and two recesses 224 (see Figure 5) that are located inside the arm portion 221 and are spaced apart from each other on the left and right.

[0028] The mounting arm 22 has two of the magnetically attracted members 222, which are spaced apart from each other on the left and right and are fixed to two recesses 224, respectively.

[0029] In some embodiments, each magnetically attracting member 222 is a magnet.

[0030] The mirror unit 3 is installed in the lens barrel unit 2.

[0031] The mirror unit 3 also includes an objective mirror assembly 31 mounted on two support arms 21 along the left-right direction Y, and an ophthalmoscope assembly 32 that is replaceably attached to the mounting arm 22 and faces the objective mirror assembly 31 at a distance in the front-back direction X.

[0032] The total area of ​​the ophthalmic assembly 32 is smaller than the total area of ​​the objective assembly 31, and the center position of the ophthalmic assembly 32 is higher than the center position of the objective assembly 31 in the vertical direction Z.

[0033] The objective mirror assembly 31 has its upper end hooked onto the shaft 213 of each support arm 21 and fixed in position, and is rotatable around the shaft 213 as a rotation axis, so that the objective mirror assembly 31 can swing back and forth and be settled in different positions to change the inclination angle relative to the object 92 (shown in Figure 1).

[0034] The objective mirror assembly 31 has an objective mirror base 311 that includes the upper end and is pivotally connected to two shafts 213 so as to be freely rotatable, and a reflector 312 that is fixed to the outside of the objective mirror base 311.

[0035] The reflecting mirror 312 is, for example, a free-form convex mirror, but is not limited to this.

[0036] In this embodiment, the objective lens base 311 has a base body 313 and two pivot portions 314 that are spaced apart from each other and installed on the top side of the base body 313, and are pivotally connected to two shafts 213, respectively.

[0037] Each pivot portion 314 is formed in a cylindrical shape.

[0038] As shown in FIGS. 4 to 6, the ophthalmic assembly 32 has an ophthalmic base 321 and a magnifying glass 322 attached to the ophthalmic base 321 and facing the objective assembly 31.

[0039] The magnifying mirror 322 is a free-form concave mirror, but is not limited to this, and faces the reflecting mirror 312 .

[0040] The ophthalmic lens seat 321 has a base body 323 on which the magnifying glass 322 is mounted, a first positioning portion 324 fixed to the base body 323 and removably connected to the mounting arm 22, and a second positioning portion 325 extending outward and downward from the base body 323 and removably attached to the mounting arm 22.

[0041] The base body 323 has two recesses 326 located between the top side and the bottom side, as shown in FIG.

[0042] In this embodiment, the first positioning portion 324 has two magnets 327 that are fixed to the two recesses 326 respectively and magnetically attract the magnetic attraction member 222 .

[0043] In some embodiments, the first positioning portion 324 can be a magnet or can be a fastener.

[0044] In this embodiment, the second positioning portion 325 has two fitting sheets 328 spaced apart in the left-right direction Y, and a recess 329 is defined between the two fitting sheets 328 into which the protrusion 223 of the arm portion 221 of the mounting arm 22 can be fitted.

[0045] The two mounting seats 328 are secured to the front side of the mounting arm 22 .

[0046] The two pivot portions 314 of the objective seat 311 of the objective assembly 31 are located at a height between the top and bottom sides of the ophthalmoscope assembly 32 in the vertical direction Z.

[0047] In this embodiment, the magnetic attraction between the two magnetic attraction members 222 and the two magnets 327 and the locking action between the second positioning portion 325 and the mounting arm 22 allow the ophthalmic assembly 32 to be replaced while also enhancing the robustness of the mounting.

[0048] In some embodiments, the functionality of removably coupling first positioning portion 324 to mounting arm 22 can be achieved using only one of magnetic attraction and locking.

[0049] As shown in FIG. 1, the mirror unit 3 is configured to form an optical path that reflects light from the object 92 to the objective assembly 31, then from the objective assembly 31 to the ophthalmoscope assembly 32, and then the ophthalmoscope assembly 32 reflects a magnified image of the object 92 to the eye of the user 91.

[0050] That is, the mirror unit 3 is configured to form an optical path that creates a magnified image of an object and reflects the magnified image at the ophthalmic assembly 32 to the user's eye.

[0051] Thus, user 91 can view a magnified image of item 92 through ophthalmic assembly 32 .

[0052] 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.

[0053] As shown in FIGS. 6 and 7, the ophthalmic assembly 32 includes a first ophthalmic assembly 301 and a second ophthalmic assembly 302, each of which constitutes one ophthalmic assembly 32.

[0054] Only one of the first ophthalmic assembly 301 and the second ophthalmic assembly 302 is selectively attached to the mounting arm 22 as ophthalmic assembly 32. Therefore, only one of the first ophthalmic assembly 301 and the second ophthalmic assembly 302 is shown in each drawing.

[0055] The first ophthalmic assembly 301 and the second ophthalmic assembly 302 have the same structure, and the explanation of the structure is the same as that of the ophthalmic assembly 32 above.

[0056] The first ophthalmic lens assembly 301 and the second ophthalmic lens assembly 302 differ in at least one of the curvature and size of the free-form surface.

[0057] The mirror unit 3 in FIG. 6 has a first ocular assembly 301 attached as the ocular assembly 32, which is suitable for a situation where a laptop is viewed on a desk, and item 92 (shown in FIG. 1) is a combination of an upright monitor and a horizontal keyboard.

[0058] The mirror unit 3 in Figure 7 has a second ophthalmic assembly 302 attached as the ophthalmic assembly 32, and is suitable for playing the piano, and the item 92 is a musical score and a keyboard (not shown). Compared to Figure 6, the objective assembly 31 in Figure 7 swings forward (to the right in the figure) around the pivot 314, and the second ophthalmic assembly 302 moves higher than the first ophthalmic assembly 301 in Figure 6 and tilts backward (to the left in the figure).

[0059] As shown in Figures 8 to 10, in some embodiments, the ophthalmic lens assembly 32 has multiple second ophthalmic lens assemblies 302, only one of which is selectively attached to the mounting arm 22, and each second ophthalmic lens assembly 302 differs from the others in at least one of the curvature and size of the free-form surface.

[0060] Therefore, the user 91 (shown in FIG. 1) can select different first ophthalmic lens assemblies 301 or one second ophthalmic lens assembly 302 to attach to the mounting arm 22 depending on the situation of use.

[0061] For example, FIG. 8 relates to a situation where one is reading a book at a desk, with the second ocular assembly 302 having a standard curvature and the article 92 (ie, the book) in a horizontal position.

[0062] 9 relates to a situation where a large monitor is viewed in front of a class, and the top end of the second ophthalmic assembly 302 in FIG. 9 is lower in height than the second ophthalmic assembly 302 in FIG.

[0063] FIG. 10 shows a situation where a user is sitting and looking at a mobile phone placed on his / her leg. Compared with FIG. 6, objective lens assembly 31 in FIG. 10 has swung backward around pivot 314 as an axis.

[0064] In addition, the optical magnifying device of the present invention can be used in a variety of situations, such as magnifying and inspecting products at manufacturing sites, or when reading a book while lying down.

[0065] In some embodiments, the objective assembly 31 can be modified to be designed with a quick release mechanism.

[0066] Based on the relative positions and angles of the objective assembly 31 and the ophthalmic assembly 32, the distance to the article 92, and the height of the article 92, the optimum free-form surface curvature values ​​of the magnifying mirror 322 and the reflector 312 can be calculated to obtain a viewing angle that provides optimum comfort.

[0067] As shown in FIGS. 11 and 12, the weight unit 4 is installed on the head frame 101 and is configured to resist the downward force caused by the weight of the mirror unit 3.

[0068] The weight unit 4 includes a top weight 41 , a rear weight 42 , two side weights 43 , and an adjustment assembly 44 .

[0069] The top weight 41 is installed on the top side of the support unit 1 along the vertical direction Z, and extends upward and rearward from the front frame rod 11 of the head frame 101.

[0070] The rear weight 42 is attached to the band body 131 of the headband 13 at the rear side of the support unit 1 along the front-rear direction X, and in this embodiment, the rear weight 42 is iron sand, but is not limited to this.

[0071] The two side weights 43 are respectively installed on the side frame bars 12 on the left and right sides of the support unit 1, and in this embodiment, the side weights 43 are iron sheets, but are not limited thereto.

[0072] By using one end of the top weight 41 as a fulcrum for supporting the front frame rod 11, the front frame rod 11 does not slide downward due to the weight of the mirror unit 3.

[0073] The rear weight 42 and side weights 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 has a balancing effect in the up-down direction Z and the front-to-back direction X. Therefore, the head frame 101, 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 101 from shifting position or tilting due to shaking of the user's 91 head or changes in posture, thereby improving the stability of the fit.

[0074] In other variations, 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, the number of top weights 41, rear weights 42 and side weights 43 can be increased or decreased, the installation position can be adjusted, and the weight and material can be changed.

[0075] 2 and 11, the adjustment assembly 44 is attached to the front frame bar 11 and the top weight 41 of the support unit 1. The adjustment assembly 44 also includes an adjustment member 441 and a cover 442.

[0076] The adjustment member 441 can be moved back and forth by being rotated.

[0077] The adjustment member 441 moves along the front-rear direction X and presses the one end of the top weight 41 to adjust the degree of bending of the top weight 41 .

[0078] The lid 442 is engaged with the front frame rod 11 and hides the lower half of the adjustment part 441 at the front side. Therefore, the upper half of the adjustment part 441 is exposed from the lid 442, and the user 91 (shown in FIG. 1) can rotate the adjustment part 441 by hand.

[0079] In other variations, the adjustment assembly 44 can be a spring pin or other positionable connector.

[0080] The adjustment portion 441 can be rotated and moved back and forth to adjust the height of the end opposite to the one end of the top weight 41 in the vertical direction Z, thereby changing the degree of bending of the top weight 41.

[0081] 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.

[0082] In some embodiments, the weight unit 4 can be omitted, in which case the head frame 101 can be firmly attached to the head of the user 91 by tightening the headband 13.

[0083] Figure 13 shows a variation of the ophthalmic lens assembly 32 and lens barrel unit 2 of this embodiment, with the main differences being that the second positioning portion 325 of the ophthalmic lens assembly 32 is an elongated sheet body of the same size, and the lens barrel unit 2 does not have the protrusion 223 shown in Figure 2.

[0084] Even with this configuration, the ophthalmic assembly 32 can still be interchangeably mounted to the mounting arm 22 as shown in FIG.

[0085] As shown in FIGS. 14 to 16, the second embodiment of the present invention is similar to the first embodiment except for the following differences.

[0086] The second embodiment is worn on the head and both shoulders of the user 91.

[0087] The support unit 1 further includes a shoulder frame 102 connected to the head frame 101 and the lens frame unit 2.

[0088] In some embodiments, the shoulder frame 102 can be connected only to the head frame 101 or only to the mirror frame unit 2.

[0089] The shoulder frame 102 has two shoulder arms 151 for contacting the shoulders of the user 91, two position limiting arms 152 extending along the left-right direction Y and each connected to one of the two shoulder arms 151, two connecting arms 153 extending diagonally upward from each shoulder arm 151, and two ear pads 154 extending from each connecting arm 153.

[0090] Each position limiting arm 152 is intended to be applied to the chest and back of the user 91.

[0091] The ear pads 154 are intended to be placed against the ears of the user 91 .

[0092] The shoulder frame 102 provides multiple support points for the shoulders and head of the user 91, reducing the burden on the head and increasing the stability of the fit.

[0093] As shown in FIGS. 17 and 18, the third embodiment of the present invention is similar to the first embodiment except for the following differences.

[0094] The third embodiment is for use on the ground 93 .

[0095] Support unit 1 includes a support frame 103. Support frame 103 has a base 161 for placing on the ground 93, and a frame body 162 extending upward from base 161 and connected to lens frame unit 2. In this embodiment, base 161 is a tripod.

[0096] The frame body 162 is positioned in front of the eyes of the user 91 when used by the user 91. Specifically, the frame body 162 has a rod 163 extending upward from the base 161 and an extension rod 164 extending horizontally from the top end of the rod 163.

[0097] The extension rod 164 has the lens barrel unit 2 attached thereto.

[0098] This third embodiment further includes a data transmission cable 5, and the item 92 is applied to a video display device, such as a mobile phone.

[0099] Lens barrel unit 2 further includes an image projection module (not shown).

[0100] The data transfer cable 5 is electrically connected to the image projection module and the article 92, and projects the image of the monitor of the article 92 onto the ophthalmoscope assembly 32 through an optical path.

[0101] The mirror unit 3 may also be configured to form a magnified image of the article 92 and form an optical path that is reflected by the ophthalmic assembly 32 to the eye of the user 91 .

[0102] The construction of the image projection module and the construction method of the optical path are well known in the art and there are many variations. Those skilled in the art can understand the details from the above description, so detailed description will be omitted here.

[0103] As shown in FIG. 19, the fourth embodiment of the present invention is similar to the third embodiment except for the following differences.

[0104] This fourth embodiment is intended for use on a desktop 94 .

[0105] The support unit 1 includes a support frame 103 for placement on the desktop 94 .

[0106] The support frame 103 has a base 161 and an extension rod 164 that extends obliquely upward from the base 161 and is connected to the lens barrel unit 2 .

[0107] A user 91 (see FIG. 17) can also view a magnified image of an item 92 (see FIG. 17) through the ophthalmic assembly 32.

[0108] According to the above-mentioned embodiments, the support unit 1 of the present invention has various appearance changes and various functional expandability, and can be designed as a wearable type, a freestanding type or a desktop type.

[0109] According to the above configuration, the present invention allows the ophthalmic lens assembly 32 to be changed according to the usage situation, such as when reading a book at a desk, looking at a laptop, playing the piano, looking at a large monitor in front of you in class, reading a book while lying down, sitting down to look at a mobile phone, or inspecting goods.

[0110] The user 91 selects an appropriate objective mirror assembly 32 and connects it to the mounting arm 22 using the first positioning portion 324 to achieve a positioning effect through mounting, and then selectively adjusts the inclination angle of the objective mirror assembly 31 to view a magnified image of the object 92 through the mirror unit 3.

[0111] This allows the user 91 to easily maintain the correct posture when viewing an object in a magnified view, and is highly convenient regardless of location.

[0112] Therefore, the object of the present invention can be reliably achieved.

[0113] 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]

[0114] The optical magnifying device of the present invention is suitable for magnifying and viewing an object. [Explanation of symbols]

[0115] 1 Head frame unit 101 Head frame 102 Shoulder frame 103 Support Frame 11 Front frame bar 12 Side frame rod 13 Headband 131 Band body 132 fasteners 14 cushions 151 Shoulder Arm 152 Position limiting arm 153 Articulating Arm 154 ear pads 161 base 162 Frame 163 bar 164 Extension rod 2 Lens barrel unit 21 Support arm 211 Connection part 212 Extension section 213 axes 22 Mounting arm 221 Arm 222 Magnetic attraction member 223 Protrusion 224 depression 3 Mirror unit 31 Objective Mirror Assembly 311 Objective mount 312 Reflector 313 Seat 314 Pivotal part 32 Ophthalmic Assembly 301 First ophthalmic assembly 302 Second ophthalmic assembly 321 Ophthalmic mirror seat 322 Magnifying Glass 323 Base Body 324 First positioning part 325 Second positioning part 326 Concave tank 327 Magnet 328 Installation Sheet 329 tank 4 weight units 41 Top weight 42 Rear weight 43 Side weight 44 Adjustment Assembly 441 Adjustment member 442 Lid 5 Data transfer cable X Anteroposterior direction Y left / right direction Z vertical direction 91 User 92 Goods 93 Ground 94 Desktop

Claims

1. an optical magnifying device adapted to reflect a magnified image of an article to a user's eye, A support unit; a lens barrel unit that is installed on the support unit and includes two support arms that are installed with a gap in the left-right direction, and an attachment arm that extends along the left-right direction and is connected to the two support arms; a mirror unit including an objective mirror assembly mounted on the lens barrel unit and mounted on the two support arms, and an ophthalmoscope assembly replaceably mounted on the mounting arm and facing the objective mirror assembly in the front-to-rear direction with a gap therebetween; Including, the ophthalmic assembly having a first positioning portion removably coupled to the mounting arm; The optical magnifying device, wherein the mirror unit is configured to form an optical path for constructing a magnified image of an object and for reflecting the magnified image at the ophthalmic assembly to the eye of a user.

2. the ophthalmic assembly includes a first ophthalmic assembly and at least one second ophthalmic assembly; the first ophthalmic assembly differs from the second ophthalmic assembly in at least one of curvature and size; 2. The optical magnification device of claim 1, wherein one of the first ophthalmic assembly and the second ophthalmic assembly is mounted on the mounting arm as the ophthalmic assembly.

3. the mounting arm has at least one magnetically attractive member; the ophthalmic assembly includes an ophthalmic base and a magnifying glass attached to the ophthalmic base and facing the objective assembly; 2. The optical magnifying device according to claim 1, wherein the first positioning portion is a magnetic member fixed to the ophthalmic lens seat for attracting the magnetic attraction member.

4. the ophthalmic assembly includes an ophthalmic base and a magnifying glass attached to the ophthalmic base and facing the objective assembly; 2. The optical magnifying device of claim 1, wherein the ophthalmic lens seat comprises a base body on which the magnifying glass and the first positioning portion are mounted, and a second positioning portion extending outward from the base body and removably attached to the mounting arm.

5. the mounting arm of the lens barrel unit has an arm portion and two magnetic attraction members fixed to the arm portion with a gap between them, The optical magnifying device according to claim 4 , wherein the first positioning portion has two magnets that magnetically attract the two magnetically attracting members.

6. The arm portion of the mounting arm has a protrusion that protrudes forward, the second positioning portion has two fitting sheets spaced apart from each other in the left-right direction, A recess is defined between the two fitting sheets so that the protrusion can be fitted therein; The optical magnifying device of claim 5 , wherein the two mounting seats are fastened to the front side of the mounting arm.

7. Further including a weight unit, The weight unit includes a top weight installed on the top side of the support unit along the vertical direction, 2. The optical magnification device of claim 1, wherein the top weight extends upward and rearward from the front side of the support unit.

8. The weight unit further includes a rear weight and two side weights, the rear weight is installed on the rear side of the support unit along the front-rear direction, The optical magnifying device according to claim 7 , wherein the two side weights are respectively installed on the left and right sides of the support unit.

9. The weight unit further includes an adjustment assembly attached to the support unit 1 and the top weight; The adjustment assembly has an adjustment member that can move back and forth, 8. The optical magnifying device according to claim 7, wherein the adjustment member can move along the front-rear direction and push the top weight.

10. the support unit includes a head frame for attachment to the user's head; 2. The optical magnifying device according to claim 1, wherein the head frame has a front frame bar for contacting the user's forehead and two side frame bars spaced apart from each other and mounted on the front frame bar.

11. the support unit further includes a shoulder frame connected to at least one of the head frame and the lens frame unit; 11. The optical magnification device of claim 10, wherein the shoulder frame has two shoulder arms for contacting both shoulders of a user.

12. the support unit includes a support frame; 2. The optical magnifying device according to claim 1, wherein the support frame has a frame body connected to the lens barrel unit, and the frame body is positioned in front of the user's eyes when used by the user.

Images