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CN115457837B - A virtual calligraphy and Chinese painting copying experience device - Google Patents

A virtual calligraphy and Chinese painting copying experience device

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Publication number
CN115457837B
CN115457837B CN202211218643.4A CN202211218643A CN115457837B CN 115457837 B CN115457837 B CN 115457837B CN 202211218643 A CN202211218643 A CN 202211218643A CN 115457837 B CN115457837 B CN 115457837B
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CN
China
Prior art keywords
frame
auxiliary
traditional chinese
virtual
copying
Prior art date
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Active
Application number
CN202211218643.4A
Other languages
Chinese (zh)
Other versions
CN115457837A (en
Inventor
范涛
张芳芳
王欢
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Xinjiang University
Original Assignee
Xinjiang University
Filing date
Publication date
Application filed by Xinjiang University filed Critical Xinjiang University
Priority to CN202211218643.4A priority Critical patent/CN115457837B/en
Publication of CN115457837A publication Critical patent/CN115457837A/en
Application granted granted Critical
Publication of CN115457837B publication Critical patent/CN115457837B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention discloses virtual writing brush character and traditional Chinese painting copying experience equipment, which comprises two supporting plates, wherein a supporting frame is fixedly arranged between the inner walls of the two supporting plates, supporting seats are fixedly arranged at four corners at the bottom end of the supporting frame, two straight plates are connected to the back of the supporting frame in a penetrating way, a display screen is fixedly arranged at the top ends of the two straight plates, a threaded rod is connected to the front of a supporting block in a threaded way, and a rocker is rotatably connected to one end of the threaded rod.

Description

Virtual writing brush character and traditional Chinese painting copying experience equipment
Technical Field
The invention relates to the technical field of traditional Chinese painting copying experience, in particular to virtual brush calligraphy and traditional Chinese painting copying experience equipment.
Background
The writing brush is used as a writing tool, the history is very long, trace of writing brush is left on painted pottery in the new stone age, although a real object of writing brush is not seen before the west week, a little sign of pen is found on painted pottery pattern before the history, the bone of the business, and the like, writing brush is widely used on bamboo and wood in the east week and on the jersey, so that the earliest writing brush is seen before the invar, the first writing brush can be traced to about two thousands of years, beat a drum mound in the Hubei province has found the writing brush in the spring and autumn period, the earliest writing brush is found as an inexhaustible precious writing brush in the ancient times, virtual words can be written on the surface of experience equipment, the experience feeling is extremely strong, and the Chinese painting can be copied.
However, the existing experience devices still have some disadvantages:
Experience equipment is mostly placed in the intermediate position in hall, make things convenient for the visitor to use, but because indoor light is relatively poor, and the sun ray angle of every time quantum is different, consequently, show the luminance on display screen surface also is different, thereby can cause the surface reflection of light of experience equipment, the user can not clear grasp the position of writing with a brush word, the water-proof effects of the operation screen of writing is relatively poor, when exerting pressure to the operation screen many times, can lead to the bottom of operation screen to wear to some extent, the life of operation screen is lower, the operation screen is when not using, can not timely protect, the surface can produce the scratch, the later stage can consume a large amount of time and maintain the operation screen.
Disclosure of Invention
The invention aims to provide virtual brush calligraphy and traditional Chinese painting copying experience equipment, which aims to solve the problems that the surface of the experience equipment provided in the background art reflects light, a user cannot clearly grasp the writing position of the brush calligraphy, the waterproof effect of a written operation screen is poor, the bottom of the operation screen is worn out when pressure is applied to the operation screen for many times, the protection cannot be timely carried out, and the surface is scratched.
The virtual brush calligraphy and traditional Chinese painting copying experience equipment comprises two supporting plates, wherein a supporting frame is fixedly installed between the inner walls of the two supporting plates, supporting seats are fixedly installed at four corners of the bottom end of the supporting frame, two straight plates are connected to the back of the supporting frame in a penetrating mode, a display screen is fixedly installed at the top ends of the two straight plates, supporting blocks are fixedly installed on the front face of the supporting frame, a threaded rod is connected to the front face of the supporting blocks in a threaded mode, a rocker is rotatably connected to one end of the threaded rod, a first shading frame is fixedly sleeved at one end portion of the threaded rod, an extension frame is fixedly installed at the top end of the first shading frame, a second shading frame is arranged at one side of the bottom end of the extension frame, folding fan blades are movably hinged to the bottom end of the extension frame, pull rings are arranged on one side of the bottom end of the folding fan blades, and an auxiliary frame is arranged at the bottom of the extension frame.
As a preferable technical scheme of the invention, one side of the bottom end of the extension frame is connected with the top end of the second shading frame in a penetrating way, one side of the bottom end of the folding fan blade is connected with the top end of the pull ring in a penetrating way, one side of the folding fan blade is fixedly provided with a fixing plate, and one side of the fixing plate is movably provided with a plurality of connecting chains.
As a preferable technical scheme of the invention, one side of the fixed plate is movably hinged with the auxiliary frame, the bottom ends of the connecting chains are respectively movably hinged with the top ends of the auxiliary frames, and the connecting chains are arranged at equal intervals.
As an optimized technical scheme of the invention, a power switch is fixedly arranged on one side of the top end of the support frame, a collision disc is fixedly arranged at the bottom end of the second shading frame, a plurality of illuminating lamps are fixedly arranged at the bottom end of the auxiliary frame, and the illuminating lamps are electrically connected with an external power supply through the power switch.
As a preferable technical scheme of the invention, an auxiliary groove is formed in one side of the extension frame, a rotary roller is rotatably connected to one side of the auxiliary groove, a light barrier is sleeved at one end of the rotary roller, a clamping hook is fixedly arranged on one side of the light barrier, a fixing hook is fixedly arranged on the other side of the extension frame, and the clamping hook is in clamping connection with the fixing hook.
As a preferable technical scheme of the invention, an operation frame is fixedly arranged at the top end of the support frame, two auxiliary blocks are connected with two sides of the inner wall of the operation frame in a clamping way, waterproof plates are connected between the inner walls of the four auxiliary blocks in a penetrating way, a silica gel plate is arranged at the top of the waterproof plates, a plurality of soft cushions are fixedly arranged at the top end of the silica gel plate, and an operation screen is arranged at the top of the silica gel plate.
As a preferable technical scheme of the invention, a holding groove is formed in the front face of the supporting frame, a copying pen is held in the holding groove, and a flip cover is movably hinged to one side of the holding groove.
As a preferable technical scheme of the invention, one side of the inner wall of one supporting plate is provided with two movable grooves, the interiors of the two movable grooves are respectively connected with movable blocks in a penetrating way, one side of each movable block is fixedly provided with a limiting block, and a limiting shaft is connected between the inner walls of the two limiting blocks in a penetrating way.
As a preferable technical scheme of the invention, a protection frame is fixedly sleeved at one end part of the limiting shaft, a sponge cushion is fixedly arranged in the protection frame, a plurality of round holes are formed in one side of the sponge cushion, and the round holes are arranged at equal intervals.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the virtual writing brush character and traditional Chinese painting copying experience device, the light blocking plate, the rotating roller, the pull ring, the folding fan blades, the extension frame and the fixed hooks are arranged, the rocking rod is rotated, the threaded rod can be driven to rotate, the first light blocking frame sleeved at one end of the threaded rod is driven to rotate, the first light blocking frame can incline by a certain angle, the coverage area of the extension frame and the top of the operation screen can be adjusted according to conditions, the pull ring is pulled downwards, the folding fan blades are driven to gradually extend downwards, the area of the folding fan blades exposed in the environment is gradually increased, the second light blocking frame is inclined, when the second light blocking frame is in contact with and is extruded to the power switch, a plurality of illumination lamps electrically connected with the second light blocking frame are driven to start to work, the illumination lamps emit brighter lamp light, the operation screen is illuminated, the light intensity is increased, the light blocking plate is pulled outwards, the hooks are buckled into the fixed hooks, the top of the extension frame is covered, and the problem that light is unclear due to reflection of the surface of the operation screen is solved, and copying is affected.
2. According to the virtual writing brush character and traditional Chinese painting copying experience device, the silica gel plates, the soft cushions, the auxiliary blocks, the waterproof plates, the operation frame and the operation screen are arranged, the silica gel plates are made of the materials, so that certain flexibility is achieved, when the copying pen is used for writing brush characters and traditional Chinese painting on the surface of the operation screen, certain pressure is applied to the operation screen, force is transmitted to the soft cushions, the soft cushions and the silica gel plates can buffer and damp the operation screen, extrusion force applied to the operation screen is reduced, abrasion of the bottom of the operation screen caused by writing brush characters on the surface of the operation screen for a long time is avoided, the waterproof plates are made of waterproof materials, and a layer of waterproof paint is smeared on the surface of the waterproof plates, so that the virtual writing brush character and traditional Chinese painting experience device has good waterproof performance.
3. According to the virtual brush calligraphy and traditional Chinese painting copying experience device, the sponge cushion, the limiting shafts, the protection frames, the movable grooves, the movable blocks and the limiting blocks are arranged, the movable blocks can stretch and move in the movable grooves, the two limiting blocks are pulled outwards, the lengths of the two movable blocks are gradually increased, the limiting blocks are driven to gradually extend to one side close to the extending frames, then the limiting shafts are rotated anticlockwise, the protection frames are driven to rotate anticlockwise, the bottom surfaces of the sponge cushion are enabled to be in contact with the surfaces of the operation screens, the sponge cushion and the operation screens are attached to each other, a certain amount of alcohol is injected from the inside of the round holes, the sponge cushion has the characteristic of absorbing water, and therefore the surfaces of the sponge cushion are gradually wetted and can protect the surfaces of the operation screens after being contacted with the operation screens, and scratches and dust on the surfaces of the operation screens are avoided.
Drawings
FIG. 1 is a schematic elevational view of the present invention;
FIG. 2 is an enlarged view of the invention at A in FIG. 1;
FIG. 3 is a schematic partial elevation view of the present invention;
FIG. 4 is a schematic diagram of a partial side view of the present invention;
FIG. 5 is a schematic side view of a portion of an interference plate of the present invention;
FIG. 6 is a schematic side view of a portion of a foam pad of the present invention;
fig. 7 is a schematic view of a partial top view of the present invention.
In the figure, 1, a supporting plate, 2, a support, 3, a display screen, 4, a supporting block, 5, a threaded rod, 6, a rocker, 7, a first shading frame, 8, an extension frame, 9, a folding fan blade, 10, a pull ring, 11, a fixed plate, 12, a connecting chain, 13, an auxiliary frame, 14, an illuminating lamp, 15, a rotating roller, 16, a light blocking plate, 17, a clamping hook, 18, a fixed hook, 19, a second shading frame, 20, a butting disc, 21, a power switch, 22, a copying pen, 23, a flip cover, 24, a placing groove, 25, an operation screen, 26, a silica gel plate, 27, a soft cushion, 28, an auxiliary block, 29, a waterproof plate, 30, a movable groove, 31, a movable block, 32, a limiting block, 33, a limiting shaft, 34, a protection frame, 35, a sponge cushion, 36, a round hole, 37, a supporting frame, 38, a straight plate, 39, an auxiliary groove, 40 and an operation frame.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, the invention provides a technical scheme of a virtual brush calligraphy and traditional Chinese painting copying experience device, which comprises the following steps:
embodiment one:
As shown in fig. 1, fig. 2 and fig. 3, a virtual writing brush character and traditional Chinese painting copying experience device comprises two support plates 1, a support frame 37 is fixedly installed between the inner walls of the two support plates 1, the four corners of the bottom end of the support frame 37 are fixedly installed with a support 2, the back of the support frame 37 is connected with two straight plates 38 in a penetrating way, the top ends of the two straight plates 38 are fixedly installed with a display screen 3, the front of the support frame 37 is fixedly installed with a support block 4, the front of the support block 4 is in threaded connection with a threaded rod 5, one end of the threaded rod 5 is rotatably connected with a rocker 6, one end of the threaded rod 5 is fixedly sleeved with a first shading frame 7, the top end of the first shading frame 7 is fixedly installed with an extension frame 8, one side of the bottom end of the extension frame 8 is provided with a second shading frame 19, the bottom end of the extension frame 8 is movably hinged with a folding fan blade 9, one side of the bottom end of the folding fan blade 9 is provided with a pull ring 10, the bottom of the extension frame 8 is provided with an auxiliary frame 13, one side of the bottom end of the extension frame 8 is connected with the top end of a second shading frame 19 in a penetrating way, one side of the bottom end of a folding fan blade 9 is connected with the top end of a pull ring 10 in a penetrating way, one side of the folding fan blade 9 is fixedly provided with a fixing plate 11, one side of the fixing plate 11 is movably provided with a plurality of connecting chains 12, one side of the fixing plate 11 is movably hinged with the auxiliary frame 13, the bottom ends of the plurality of connecting chains 12 are respectively movably hinged with the top end of the auxiliary frame 13, the plurality of connecting chains 12 are arranged at equal intervals, the first shading frame 7 is inclined by a certain angle, the coverage area of the extension frame 8 and the top of an operation screen 25 can be adjusted according to the situation, the pull ring 10 is pulled downwards, the area of the folding fan blade 9 exposed in the environment is gradually increased, the second shading frame 19 is pressed to the power switch 21 in a touching way when being inclined, thereby driving the plurality of illuminating lamps 14 electrically connected with the lamp to start working.
Embodiment two:
On the basis of the first embodiment, as shown in fig. 1, fig. 4 and fig. 5, a power switch 21 is fixedly installed on one side of the top end of a supporting frame 37, a contact tray 20 is fixedly installed at the bottom end of a second shading frame 19, a plurality of illuminating lamps 14 are fixedly installed at the bottom end of an auxiliary frame 13, the illuminating lamps 14 are electrically connected with an external power supply through the power switch 21, an auxiliary groove 39 is formed in one side of an extension frame 8, a rotary roller 15 is rotatably connected to one side of the auxiliary groove 39, a light blocking plate 16 is sleeved at one end of the rotary roller 15, a clamping hook 17 is fixedly installed on one side of the light blocking plate 16, a fixing hook 18 is fixedly installed on the other side of the extension frame 8, and the clamping hook 17 is clamped and connected with the fixing hook 18.
Embodiment III:
On the basis of the first embodiment and the second embodiment, as shown in fig. 6 and 7, an operation frame 40 is fixedly installed at the top end of a supporting frame 37, two auxiliary blocks 28 are clamped and connected to two sides of the inner wall of the operation frame 40, a waterproof plate 29 is connected between the inner walls of the four auxiliary blocks 28 in a penetrating mode, a silica gel plate 26 is arranged at the top of the waterproof plate 29, a plurality of cushions 27 are fixedly installed at the top end of the silica gel plate 26, an operation screen 25 is arranged at the top of the silica gel plate 26, a shelving groove 24 is formed in the front of the supporting frame 37, a copying pen 22 is placed in the shelving groove 24, a flip cover 23 is movably hinged to one side of the shelving groove 24, two movable grooves 30 are formed in one side of the inner wall of one supporting plate 1, movable blocks 31 are connected in a penetrating mode in the two movable grooves 30, limiting blocks 32 are fixedly installed on one side of the two movable blocks 31, and a limiting shaft 33 is connected between the inner walls of the two limiting blocks 32 in a penetrating mode, and a virtual character and Chinese painting experience device is arranged.
Working principle: when the surface of the operation screen 25 reflects light, a user can rotate the rocker 6 to drive the threaded rod 5 to rotate, so that the first shading frame 7 sleeved at one end part of the rocker is driven to rotate, the first shading frame 7 can incline by a certain angle, the coverage area of the extension frame 8 and the top of the operation screen 25 can be adjusted according to the situation, the larger the coverage area of the extension frame 8 and the surface of the operation screen 25 is, the better the anti-reflection effect of the operation screen 25 is, the pull ring 10 is pulled downwards, the folding fan blade 9 is driven to gradually extend downwards, the area of the folding fan blade 9 exposed in the environment is gradually increased, the second shading frame 19 is inclined to touch and press the power switch 21, so that a plurality of illumination lamps 14 electrically connected with the second shading frame are driven to start working, the illumination lamps 14 emit brighter light to illuminate the operation screen 25, the light intensity is increased, the user can more clearly grasp the condition of the writing brush words written on the surface of the operation screen 25, the better the copying effect of writing the writing brush words and the traditional Chinese painting is, the light barrier 16 is pulled outwards, the clamping hooks 17 are buckled into the fixed hooks 18, the light barrier 16 covers the top of the extension frame 8, the problems that light rays are unclear and copying is affected due to reflection of light on the surface of the operation screen 25 are solved, the four auxiliary blocks 28 are mutually buckled with the inner wall of the operation frame 40, the waterproof board 29 is made of waterproof materials, the surface of the waterproof board is coated with a layer of waterproof paint, the waterproof paint has better waterproof performance, external moisture can be prevented from being directly immersed into the support frame 37 from the inside of the operation screen 25, the damage is caused by contact of elements arranged in the waterproof paint, the materials of the plurality of cushions 27 and the silica gel board 26 are all silica gel, and therefore the waterproof paint has certain flexibility, when the copying pen 22 is used for writing brush words and traditional Chinese paintings on the surface of the operation screen 25, a certain pressure is applied to the operation screen 25, so that force is transferred to a plurality of cushions 27, the cushions 27 and the silica gel plate 26 can buffer and damp the operation screen 25, extrusion force applied to the operation screen 25 is reduced, abrasion of the bottom of the operation screen 25 caused by long-time writing brush words on the surface of the operation screen 25 is avoided, the service life of experience equipment is prolonged, the movable blocks 31 can stretch and move in the movable grooves 30, two limiting blocks 32 are pulled outwards simultaneously, the lengths of the two movable blocks 31 are gradually increased, the limiting blocks 32 are driven to gradually stretch to one side close to the extension frame 8, the moving position of the protection frame 34 can be adjusted through the movable blocks 31, the surface of the operation screen 25 can be wiped, the limiting shafts 33 are then rotated anticlockwise, the bottom surfaces of the sponge pads 35 and the surface of the operation screen 25 are enabled to be mutually contacted, a certain amount of alcohol is injected into the inside the plurality of round holes 36, the sponge pads 35 are enabled to be in contact with the surface of the operation screen 25, and the surface of the operation screen 25 can be prevented from being repeatedly rubbed by the surface of the operation screen 25.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is merely for convenience in describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, connected internally of two elements or the interaction relationship of two elements, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to the specific circumstances unless explicitly defined otherwise.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The virtual brush calligraphy and traditional Chinese painting copying experience device comprises two support plates (1) and is characterized in that a support frame (37) is fixedly installed between the inner walls of the two support plates (1), support frames (2) are fixedly installed at four corners of the bottom end of each support frame (37), two straight plates (38) are connected to the back of each support frame (37) in a penetrating mode, a display screen (3) is fixedly installed at the top end of each straight plate (38), a support block (4) is fixedly installed on the front face of each support frame (37), threaded rods (5) are connected to the front face of each support block (4) in a threaded mode, rocking bars (6) are rotatably connected to one end of each threaded rod (5), a first shading frame (7) is fixedly sleeved at one end of each threaded rod (5), an extension frame (8) is fixedly installed at the top end of each first shading frame (7), a second shading frame (19) is arranged on one side of the bottom end of each extension frame (8), fan blades (9) are movably hinged to the bottom ends of each extension frame (8), folding fan blades (9) are arranged on one side of each folding fan blade (9), and an auxiliary frame (13) is arranged on one side of each extension frame (10).
One side fixed mounting on support frame (37) top has switch (21), the bottom fixed mounting of second shading frame (19) has conflict dish (20), the bottom fixed mounting of auxiliary frame (13) has a plurality of light (14), a plurality of light (14) all pass through switch (21) and external power supply electric connection.
2. The virtual Chinese brush character and traditional Chinese painting copying experience device according to claim 1, wherein one side of the bottom end of the extension frame (8) is connected with the top end of the second shading frame (19) in a penetrating mode, one side of the bottom end of the folding fan blade (9) is connected with the top end of the pull ring (10) in a penetrating mode, a fixing plate (11) is fixedly arranged on one side of the folding fan blade (9), and a plurality of connecting chains (12) are movably arranged on one side of the fixing plate (11).
3. The virtual Chinese brush character and traditional Chinese painting copying experience device according to claim 2, wherein an auxiliary frame (13) is movably hinged to one side of the fixed plate (11), the bottom ends of the connecting chains (12) are respectively movably hinged to the top ends of the auxiliary frames (13), and the connecting chains (12) are arranged at equal intervals.
4. The virtual Chinese brush character and traditional Chinese painting copying experience device according to claim 2, wherein an auxiliary groove (39) is formed in one side of the extension frame (8), one side of the auxiliary groove (39) is rotatably connected with a rotating roller (15), one end portion of the rotating roller (15) is sleeved with a light barrier (16), a clamping hook (17) is fixedly arranged on one side of the light barrier (16), a fixing hook (18) is fixedly arranged on the other side of the extension frame (8), and the clamping hook (17) is in clamping connection with the fixing hook (18).
5. The virtual Chinese brush character and traditional Chinese painting copying experience device according to claim 1, wherein an operation frame (40) is fixedly installed at the top end of the support frame (37), two auxiliary blocks (28) are connected to two sides of the inner wall of the operation frame (40) in a clamping mode, waterproof plates (29) are connected between the inner walls of the four auxiliary blocks (28) in an inserted mode, silica gel plates (26) are arranged at the tops of the waterproof plates (29), a plurality of soft cushions (27) are fixedly installed at the top ends of the silica gel plates (26), and an operation screen (25) is arranged at the tops of the silica gel plates (26).
6. The virtual Chinese brush character and traditional Chinese painting copying experience device according to claim 5, wherein a holding groove (24) is formed in the front face of the supporting frame (37), a copying pen (22) is held in the holding groove (24), and a flip cover (23) is movably hinged to one side of the holding groove (24).
7. The virtual Chinese brush character and traditional Chinese painting copying experience device according to claim 1, wherein two movable grooves (30) are formed in one side of the inner wall of one supporting plate (1), movable blocks (31) are connected in the two movable grooves (30) in a penetrating mode, limiting blocks (32) are fixedly arranged on one sides of the two movable blocks (31), and limiting shafts (33) are connected between the inner walls of the two limiting blocks (32) in a penetrating mode.
8. The virtual Chinese brush character and traditional Chinese painting copying experience device according to claim 7, wherein a protection frame (34) is fixedly sleeved at one end of the limiting shaft (33), a sponge cushion (35) is fixedly arranged in the protection frame (34), a plurality of round holes (36) are formed in one side of the sponge cushion (35), and the positions of the round holes (36) are arranged at equal intervals.
CN202211218643.4A 2022-10-06 A virtual calligraphy and Chinese painting copying experience device Active CN115457837B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211218643.4A CN115457837B (en) 2022-10-06 A virtual calligraphy and Chinese painting copying experience device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211218643.4A CN115457837B (en) 2022-10-06 A virtual calligraphy and Chinese painting copying experience device

Publications (2)

Publication Number Publication Date
CN115457837A CN115457837A (en) 2022-12-09
CN115457837B true CN115457837B (en) 2025-04-01

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH560029A5 (en) * 1973-06-07 1975-03-27 Kreft Wilhelm Book or record display shelf - made in sections partially inclined towards the vertical and fitted with light source
CN111415547A (en) * 2020-04-15 2020-07-14 山东理工职业学院 Calligraphy practising copying teaching aid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH560029A5 (en) * 1973-06-07 1975-03-27 Kreft Wilhelm Book or record display shelf - made in sections partially inclined towards the vertical and fitted with light source
CN111415547A (en) * 2020-04-15 2020-07-14 山东理工职业学院 Calligraphy practising copying teaching aid

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