High viewing angle magnifying device

Abstract

To provide a high viewing angle magnifying device that can maintain an appropriate viewing distance.SOLUTION: A high viewing angle magnifying device is suitable for being placed or clipped on a table surface, and is used to acquire an enlarged image of an object on the distal side. The high viewing angle magnifying device includes a support unit and a mirror holder unit. The mirror holder unit is installed on the support unit and constructs an optical path for acquiring the enlarged image on the distal side. The mirror holder unit includes a reflection mirror holder, a rotation shaft, and a magnifying glass holder. The reflection mirror holder is installed on the support unit, and has a reflection mirror that is higher than the table surface and is inclined with respect to the table surface. One end of the magnifying glass holder is installed on the rotation shaft and can be inverted with respect to the reflection mirror holder. The magnifying glass holder has a magnifying glass located above an object. The magnifying glass is used to enlarge an image, and the optical path is configured to project a beam of the object on the magnifying glass, reflect the beam on the magnifying glass to the reflection mirror, reflect the beam on the reflection mirror, and project the beam to the outside.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an optical device, and more particularly to a wide viewing angle magnifying device capable of magnifying an image of an object. [Background technology]

[0002] Conventional reading magnifiers utilize the principle of lens magnification to enlarge images on books or mobile phones, making them easier for users with poor eyesight to view.

[0003] For example, the mobile phone magnifying device disclosed in Chinese Utility Model No. CN209731365U includes a rectangular base plate, a support plate provided on the distal side of the base plate, and a magnifying glass provided on the proximal side of the base plate and parallel to the support plate at a distance, allowing a user to place the mobile phone on the support plate and view the mobile phone through the magnifying glass to magnify the screen of the mobile phone.

[0004] When viewing a mobile phone through the mobile phone magnifying device, the user must get very close to the magnifying glass to see it clearly, which makes it easy for the user to tilt their head forward, causing pain in the shoulders and neck and even deterioration of the cervical vertebrae. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] China Utility Model Registration No. 209731365 Summary of the Invention [Problem to be solved by the invention]

[0006] Therefore, an object of the present invention is to provide a wide viewing angle magnifying device that can maintain an appropriate viewing distance. [Means for solving the problem]

[0007] The wide viewing angle magnifying device of the present invention is suitable for being placed on or clipped to a table surface and used for obtaining a magnified image of an object at a distal end. The wide viewing angle magnifying device includes a support unit and a mirror holder unit.

[0008] The support unit is suitable for being placed on or clipped to the table surface. The mirror holder unit is installed above the support unit in the vertical direction and forms an optical path for obtaining the magnified image on the distal side. The mirror holder unit includes a reflector holder, a rotation axis, and a magnifying mirror holder. The reflector holder is installed on the support unit, is higher than the table surface, and has a reflector inclined relative to the table surface. The rotation axis is installed at the upper end of the reflector holder and extends along a horizontal direction perpendicular to the vertical direction. One end of the magnifying mirror holder is installed on the rotation axis and can be inverted relative to the reflector holder. The magnifying mirror holder has a magnifying mirror located above the object in the vertical direction. The magnifying mirror is used to magnify an image, and the optical path is configured to guide light rays from the object to be projected onto the magnifying mirror, reflected by the magnifying mirror, projected onto the reflecting mirror, and reflected by the reflecting mirror. [Effects of the Invention]

[0009] The effect of the present invention is that a user can place the present invention on the table surface or clip it to the edge of the table surface, open the magnifying mirror holder, and place the object under the magnifying mirror holder. The user's line of sight is directed toward the reflecting mirror holder, and the magnified image can be seen on the reflecting mirror. The magnified image is a unity magnification of the object and is located on the distal side (i.e., the reflecting mirror), so the user can clearly see the magnified image from a distance of 30 to 50 cm, allowing the user to use the present invention while maintaining an appropriate viewing distance. [Brief explanation of the drawings]

[0010] [Figure 1]1 shows a wide viewing angle magnifying device of one embodiment of the present invention placed on a table surface, and shows the magnifying mirror holder of said embodiment in an open position relative to the reflector holder. [Figure 2] FIG. 2 is a side view of the embodiment, showing the magnifying mirror holder in an open position relative to the reflecting mirror holder. [Figure 3] FIG. 2 is an explanatory diagram illustrating how a user views an object through the optical path of the embodiment. [Figure 4] FIG. 4 is another explanatory diagram of the optical path. [Figure 5] FIG. 2 is an explanatory diagram illustrating an image of a magnified object after passing through the optical path. [Figure 6] FIG. [Figure 7] 2 is a perspective view similar to that of FIG. 1, but showing the magnifier holder in a closed position relative to the reflector holder; FIG. [Figure 8] 3 is a side view similar to that of FIG. 2, but showing the magnifier holder in a closed position relative to the reflector holder. [Figure 9] FIG. 2 is a perspective view of a mirror holder unit according to the embodiment. [Figure 10] This is a modification of the above embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] 1 to 3, one embodiment of a wide viewing angle magnifying device 100 of the present invention is a tabletop device suitable for being placed on a table surface 91 or clipped to the edge of the table surface 91, and is used to obtain a magnified image 93 (see FIG. 5) of an object 92 on the distal side and allow a user 94 to view it. In this embodiment, the distal side is defined as a position away from the user 94 and the object 92. The wide viewing angle magnifying device 100 includes a support unit 2, a mirror holder unit 3, and a light source unit 4. When in use, the wide viewing angle magnifying device 100 is placed in front of the line of sight of the user 94.

[0012] The support unit 2 is suitable for being placed on the table surface 91 or clipped to the edge of the table surface 91. In this embodiment, the support unit 2 includes the base 21 placed on the table surface 91, and a support rod 22 extending upward from the base 21 in the vertical direction Z. The base 21 extends in the front-rear direction X perpendicular to the vertical direction Z. The support rod 22 has a lower end 221 fixed to the base 21 and an upper end 222 opposite to the lower end 221. In this embodiment, the upper surface of the upper end 222 is an inclined surface.

[0013] The mirror holder unit 3 is installed above the support rod 22 of the support unit 2 in the vertical direction Z, and is used to establish an optical path P for acquiring the magnified image 93 on the distal side. In some embodiments, the support rod 22 can be a liftable rod body, thereby adjusting the height of the mirror holder unit 3. The mirror holder unit 3 includes a reflecting mirror holder 31, a rotating shaft 32, and a magnifying mirror holder 33.

[0014] The reflector holder 31 is installed on the upper end 222 of the support rod 22 in the vertical direction Z, and includes a lower shell 311 installed on the upper end 222, and a reflector 312 that is higher than the table surface 91 and fixed to the lower shell 311 and faces the user 94. The lower shell 311 has a lower edge 313 adjacent to the base 21. The reflector 312 is inclined in the vertical direction, so that the lower end of the reflector 312 faces further toward the user 94 than the upper end of the reflector 312. The reflector 312 is, in other words, the distal side described above.

[0015] 3 and 4, the reflecting mirror 312 is inclined at an inclination angle A1 with respect to the table surface 91. When the inclination angle A1 is 30 to 80 degrees, the center of the reflecting mirror 312 can be substantially aligned with the line of sight of the user 94, allowing the user 94 to look straight at the reflecting mirror 312 without raising or lowering their head, which is more ergonomic. The reflecting mirror 312 in this embodiment is a free-form concave mirror that magnifies images. However, in other embodiments, the reflecting mirror 312 may be a spherical concave mirror, or, since image magnification is not necessarily required, the reflecting mirror 312 may be a plane mirror. The outline of the reflecting mirror 312 is roughly composed of four boundary lines, and the upper boundary line 321a of the reflecting mirror 312 is longer than the lower boundary line 321b. In a specific embodiment, the reflector 312 is trapezoidal with a wide top and a narrow bottom, which can avoid glare problems caused by the user 94 seeing the ceiling through the reflector 312, but is not limited to this.

[0016] 1 to 3, the rotation shaft 32 is installed at the upper end of the reflector holder 31, and extends along a lateral direction Y (i.e., a left-right direction) perpendicular to the up-down direction Z and the front-rear direction X.

[0017] One end of the magnifying mirror holder 33 is installed on the rotation shaft 32 and can be inverted relative to the reflecting mirror holder 31. The magnifying mirror holder 33 has an upper shell 331 connected to the rotation shaft 32 and a magnifying mirror 332 fixed to the upper shell 331 and used to magnify an image. The upper shell 331 has a side edge 333 away from the rotation shaft 32. The magnifying mirror 332 is located above the object 92 in the vertical direction Z. In this embodiment, the magnifying mirror 332 is a free-form concave mirror, and its area is larger than that of the reflecting mirror 312. However, in other embodiments, the magnifying mirror 332 may be a concave mirror of another type that similarly functions to magnify an image.

[0018] 4 and 5, the optical path P of the present invention guides the light beam from the object 92 to be projected onto the magnifying mirror 332, which then reflects the light beam onto the reflecting mirror 312, which then reflects the magnified image 93. Therefore, the user 94 can look directly at the reflecting mirror 312 (i.e., the distal side) while maintaining an appropriate viewing distance, and can clearly see the magnified image 93.

[0019] Furthermore, with regard to the optical path P, the magnifying mirror 332 is configured not to receive light rays directly from the lower shell 311, in other words, light rays from the lower shell 311 itself do not enter the light receiving range of the optical path P of the magnifying mirror 332. The so-called not receiving at all or partially means that even if a part of the lower shell 311 is located below the magnifying mirror 332, when the viewer's eyes 94 look directly at the reflecting mirror 312 and see the object 92 that is actually located below the magnifying mirror 332, based on the configuration of this combined optical path, the magnifying mirror 332 does not receive light rays directly projected from the lower shell 311 toward the magnifying mirror 332, or the magnifying mirror 332 can receive a small portion of the image from the lower shell 311, but the majority of the magnified image 93 is from the object 92.

[0020] In one embodiment, the magnifying mirror 332 has the effect of curving the image downward, and the reflecting mirror 312 has the effect of curving the image upward, so that the two free-form concave mirrors, the magnifying mirror 332 and the reflecting mirror 312, mutually cancel out the distortion of the curvature of the image, thereby obtaining the magnified image 93 without any curvature in the same ratio as the object 92.

[0021] The reflecting mirror 312 and the magnifying mirror 332 sandwich an angle A2 therebetween, and in this embodiment, the angle A2 is 49 degrees, but if the angle A2 is between 40 and 60 degrees, a better imaging effect can be obtained.

[0022] Furthermore, the side edge 334 of the magnifying glass 332 and the top surface of the object 92 are spaced a distance d in the vertical direction Z, and in this embodiment, the distance d is 50 cm. If the distance d is too large, the image will not be in focus, and if the distance d is too small, it will obstruct the line of sight of the user 94, so it is more appropriate that the distance d be 40 to 60 cm.

[0023] Based on the numerical range of the angle A2 and the distance d, freeform surface parameters of the reflecting mirror 312 and the magnifying mirror 332 can be calculated. The object 92 passes through the optical path P, and its image is magnified and presented on the reflecting mirror 312 (i.e., the distal side), so that the user 94 can easily view the object 92 at an appropriate viewing distance of 30 to 50 cm. If the user 94 is too close to the present invention, the magnified image 93 is too magnified, making it difficult for the user 94 to see, and if the user 94 is too far from the present invention, the magnification ratio of the magnified image 93 is too small, making it difficult to see clearly. Therefore, the user 94 can use the present invention while maintaining an appropriate viewing distance, and can obtain a better viewing angle and comfortable reading.

[0024] 1, 2, and 6, the rotation shaft 32 has a first pivot portion 321 formed on one side of the lower shell 311, a second pivot portion 322 formed on one side of the upper shell 331 and rotatable relative to the first pivot portion 321, and a rotation knob 323. Specifically, the second pivot portion 322 is composed of two pivot plates spaced apart in the horizontal direction Y. The rotation shaft 32 further has two caps 324 fixed to the outer sides of the pivot plates, respectively. The angle A2 can be adjusted and fixed by rotating the rotation knob 323.

[0025] 1 and 7, the magnifying mirror holder 33 can be pivoted relative to the reflecting mirror holder 31 into an open state (see FIG. 1) and a closed state (see FIG. 7).

[0026] 1 and 2, when the magnifying glass holder 33 is in the open state, the magnifying glass holder 33 is opened substantially horizontally, and the side edge 333 of the magnifying glass holder 33 is slightly lower than the rotation axis 32 and higher than the lower edge 313 of the reflector holder 31.

[0027] 7 and 8, when the magnifying glass holder 33 is in the closed state, the magnifying glass holder 33 is placed over the reflector holder 31, and the side edge 333 of the magnifying glass holder 33 is lower than the bottom edge 313 of the reflector holder 31. As can be seen from FIG. 8, the length of the magnifying glass holder 33 is greater than the length of the reflector holder 31.

[0028] 2, 4 and 6, the light source unit 4 is used to provide supplementary light to the light beam entering the optical path P. In this embodiment, the light source unit 4 is an LED lamp and is installed on the lower edge 313 of the lower shell 311. However, in other embodiments, the light source unit 4 may be a light source installed in another position or may replace a conventional lighting fixture in the home, as long as it can provide sufficient light to the mirror holder unit 3.

[0029] 9, the mirror holder unit 3 of this embodiment further includes an imaging unit 34. The imaging unit 34 is attached to the rotation shaft 32 and has a lens 341 attached within the rotation shaft 32 to allow a user 94 (see FIG. 4) to take an image. This provides monitoring and recording effects, and allows the user 94 to understand the usage status. In some embodiments, the position of the imaging unit 34 can be changed or omitted.

[0030] 6, the reflector holder 31 of this embodiment further has two insertion holes 314 formed on the rear surface of the lower shell 311. The insertion holes 314 are used to connect external power cables and supply power to the imaging unit 34 and the light source unit 4. In another embodiment, the wide viewing angle expanding device 100 of the present invention may have a built-in battery to supply power.

[0031] 10, which is a modification of this embodiment. The differences are as follows: The support rod 22 of the support unit 2 is plate-shaped and extends obliquely upward from the edge of the base 21 toward the user 94 (see FIG. 4). An upper end 222 of the support rod 22 extends obliquely along the back surface of the lower shell 311 and away from the user 94.

[0032] A counterweight (not shown) is provided inside the base 21 to maintain the center of gravity.

[0033] The reflector holder 31 further has a slide groove 315 formed on the rear surface of the lower shell 311 .

[0034] An upper end 222 of the support rod 22 is slidably attached to the reflecting mirror holder 31. The support rod 22 has an adjustment member 223 rotatably joined between the upper end 222 and the slide groove 315. After loosening the adjustment member 223, the mirror holder unit 3 can be moved up and down in the vertical direction Z relative to the support unit 2 to change the height of the mirror holder unit 3. The adjustment member 223 may be a rotary knob or another member that can be tightened and loosened.

[0035] The wide viewing angle magnifying device 100 of the present invention can be placed directly on the table surface 91 or clipped onto the edge of the table surface 91 using a clip-type base 21. The user 94 opens the magnifying mirror holder 33, places the object 92 below the magnifying mirror holder 33, and looks directly horizontally at the reflector holder 312 to view the magnified image 93 on the reflector 312 (i.e., the distal side). The user 94 can use the present invention while maintaining an appropriate viewing distance of 30 to 50 cm, and can enjoy a better viewing angle and more comfortable reading. Furthermore, the horizontal shape of the magnifying mirror holder 33 prevents the user 94 from getting too close to the present invention, allowing for an appropriate viewing distance to be maintained, thereby ensuring the objectives of the present invention.

[0036] The above is merely an example of the present invention and does not limit the scope of the present invention. Therefore, any equivalent changes and modifications made based on the contents of the claims and specification are within the scope of the present invention. [Explanation of symbols]

[0037] 100 High-angle viewing device 2 Support Unit 21 Bottom stand 22 Support rod 221 Bottom end 222 Top 223 Adjustment member 3 Mirror holder unit 31 Reflector holder 311 Lower Shell 312 Reflector 313 Lower edge 314 Insertion hole 315 Slide groove 32 Rotation axis 321 First pivot part 321a Upper boundary line 321b Lower border 322 Second pivot part 323 Rotary Knob 324 Cap 33 Magnifying Glass Holder 331 Upper Shell 332 Magnifying Glass 333 Side edge 334 side 34 Imaging unit 341 Lens 4 Light source unit 91 Table surface 92 Object 93 Enlarged image 94 users A1 Inclination angle A2 angle d distance P optical path X Anteroposterior direction Y horizontal direction Z vertical direction

Claims

1. 1. A wide viewing angle magnifying device adapted to be placed on or clipped to a table surface and used to obtain a magnified image of an object at a distal end, the wide viewing angle magnifying device comprising: a support unit suitable for resting or clipping onto the table surface; a mirror holder unit that is installed above the support unit in the vertical direction and that forms an optical path for acquiring the magnified image on the distal side; The mirror holder unit comprises: a reflector holder that is installed on the support unit, that is higher than the table surface, and that has a reflector that is inclined with respect to the table surface; a rotation axis installed at an upper end of the reflector holder and extending along a horizontal direction perpendicular to the vertical direction; a magnifying mirror holder, one end of which is mounted on the rotation axis and can be inverted relative to the reflecting mirror holder, and which has a magnifying mirror positioned above the object in the vertical direction, the magnifying mirror being used to magnify an image, and the optical path being configured to guide the light beam from the object to be projected onto the magnifying mirror, reflected by the magnifying mirror, projected onto the reflecting mirror, and reflected by the reflecting mirror; A high viewing angle magnification device including:

2. The wide viewing angle magnifying device of claim 1 , further comprising a light source unit for providing a light beam in the optical path.

3. The wide viewing angle magnifying device according to claim 2 , wherein the reflector holder further comprises a lower shell for mounting the reflector, and the light source unit is mounted on a lower edge of the lower shell.

4. 2. The wide viewing angle magnifying device of claim 1, wherein the reflector holder further comprises a lower shell on which the reflector is installed, the magnifying glass holder further comprises an upper shell on which the magnifying glass is installed, and the rotation axis has a first pivot portion formed on one side of the lower shell and a second pivot portion formed on one side of the upper shell and rotatable relative to the first pivot portion.

5. 2. The wide viewing angle magnifying device of claim 1, wherein the reflector holder further comprises a lower shell on which the reflector is mounted, and the magnifying glass is configured to receive no or only part of the direct light from the lower shell.

6. The wide viewing angle magnifying device according to claim 1 , wherein the mirror holder unit further includes an imaging unit having a lens.

7. 2. The wide viewing angle magnifying device of claim 1, wherein the magnifying mirror holder further has a side edge spaced apart from and lower than the rotation axis, and can rotate relative to the reflector holder between an open state and a closed state, wherein in the open state, the magnifying mirror holder is lower than the rotation axis and higher than a bottom edge of the reflector holder, and in the closed state, the magnifying mirror holder is placed over the reflector holder, and the side edge of the magnifying mirror holder is lower than the bottom edge of the reflector holder.

8. 2. The wide viewing angle magnifying device according to claim 1, wherein the magnifying mirror or the reflecting mirror is a free-form concave mirror.

9. 2. The wide viewing angle magnifying device according to claim 1, wherein the area of ​​the reflecting mirror is smaller than the area of ​​the magnifying mirror.

10. The wide viewing angle magnifying device according to claim 1 , wherein an upper boundary line of the reflecting mirror is longer than a lower boundary line of the reflecting mirror.

11. 2. The wide viewing angle magnifying device of claim 1, wherein the support unit includes a base for placing on the table surface and a support rod extending upward from the base along the vertical direction, the support rod having a lower end fixed to the base and an upper end opposite the lower end and on which the reflector holder is installed.

12. 2. The wide viewing angle magnifying device according to claim 1, wherein the reflecting mirror and the magnifying mirror sandwich an angle of 40 to 60 degrees therebetween.

13. 2. The wide viewing angle magnifying device according to claim 1, wherein the side of the magnifying glass and the upper surface of the object are spaced apart by a distance of 40 to 60 cm in the vertical direction.

14. 2. The wide viewing angle magnifying device according to claim 1, wherein the support unit has an adjustment member adjustably attached to the reflecting mirror holder, and the mirror holder unit is movable up and down relative to the support unit in the up and down direction.

Images