CN109541872A - A kind of novel art displaying device - Google Patents
A kind of novel art displaying device Download PDFInfo
- Publication number
- CN109541872A CN109541872A CN201811492133.XA CN201811492133A CN109541872A CN 109541872 A CN109541872 A CN 109541872A CN 201811492133 A CN201811492133 A CN 201811492133A CN 109541872 A CN109541872 A CN 109541872A
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- China
- Prior art keywords
- stability maintenance
- casing
- bar
- arc
- module group
- Prior art date
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/145—Housing details, e.g. position adjustments thereof
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
本发明属于放映设备技术领域，公开了一种新型影视艺术展示装置。该新型影视艺术展示装置，包括机壳、投影机构、维稳环、水平维稳机构及垂直维稳机构，所述投影机构设置在机壳内，维稳环的上下两端分别固定连接在机壳的上下内壁，且投影机构位于维稳环内，水平维稳机构设置在机壳内投影机构的上侧，垂直维稳机构设置在机壳内投影机构的下侧。该新型影视艺术展示装置，通过水平维稳机构的设置，在投影模组投影发生倾斜时，通过液腔内导电液的流动来控制直流电机的通断来调节投影模组，同时利用液腔内导电液的流动组成水平仪机构来确保放映机水平方向处于正位。
The invention belongs to the technical field of projection equipment, and discloses a novel film and television art display device. The new film and television art display device includes a casing, a projection mechanism, a stability maintenance ring, a horizontal stability maintenance mechanism and a vertical stability maintenance mechanism. The projection mechanism is arranged in the casing, and the upper and lower ends of the stability maintenance ring are fixedly connected to the upper and lower inner walls of the casing. , and the projection mechanism is located in the stability maintenance ring, the horizontal stability maintenance mechanism is arranged on the upper side of the projection mechanism in the casing, and the vertical stability maintenance mechanism is arranged on the lower side of the projection mechanism in the casing. This new type of film and television art display device, through the setting of the horizontal stability maintenance mechanism, when the projection of the projection module is tilted, the flow of the conductive liquid in the liquid chamber controls the on-off of the DC motor to adjust the projection module, and at the same time uses the conductive liquid in the liquid chamber. The flow of liquid constitutes a spirit level mechanism to ensure that the projector is in the correct horizontal direction.
Description
Technical field
The present invention relates to the technical field of projection equipment, specially a kind of novel art shows device.
Background technique
Projector is the machine for playing films and television programs.
With the development of economy, life in the countryside is more rich and varied, and the channel that people appreciate art is more, by place
The projector that literary wide office arranges go to the countryside it is also more common, for the indoor broadcasting in city, the playing environment pair in rural area
The requirement of projector is harsher, and rugged road surface is difficult to keep projector and is in normotopia projection, needs to carry out projector numerous
Trivial adjustment, so developing a kind of projector of a small range energy adjust automatically normotopia.
Summary of the invention
Goal of the invention of the invention is the provision of a kind of novel art displaying device, which shows
Device.
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of novel art displaying dress
It sets, including casing, projector mechanism, stability maintenance ring, horizontal stability maintenance mechanism and vertical stability maintenance mechanism, the projector mechanism is arranged in casing
Interior, the upper and lower ends of stability maintenance ring are respectively fixedly connected with the inner wall up and down in casing, and projector mechanism is located in stability maintenance ring, level dimension
The upside of projector mechanism in casing is arranged in steady mechanism, and the downside of projector mechanism in casing is arranged in vertical stability maintenance mechanism.
The projector mechanism includes the projective module group that outsourcing aluminum barrel is made of camera lens and projection chip, arc cap, attraction
Bar and stretch cord, one end of the projective module group is located at the inside of stability maintenance ring, and the lateral surface of the outer aluminum barrel of projective module group passes through four
Root stretch cord is fixedly connected with the inner wall of stability maintenance ring, and the other end of projective module group is movably connected in the positive right side of casing by ball axis
End, and the other end of projective module group extends to the front side of casing, arc cap is fixedly connected on the lower surface of projective module group, arc
Suction bar is placed in housing, suction bar is middle part without the magnetic cylindric straight-bar in magnetic both ends.
The horizontal stability maintenance mechanism includes balance weight, sap cavity, conduction liquid, contact A, contact B, direct current generator, transmission gear A
With transmission gear B, balance weight is fixedly connected on the upper surface of the outer aluminum barrel of projective module group, and sap cavity is located at the inside of balance weight, sap cavity
What the interior conduction liquid filled with its 4/5ths volume, contact A and contact B were located at that lower wall on balance weight opens up connects with sap cavity
In logical sealing hole, direct current generator is fixedly mounted in casing on antetheca by L shape bar, and direct current generator is located at the upper of positioning ring
The output shaft of side, direct current generator through casing and extends on front side of casing, and transmission gear A is fixedly attached to the output of direct current generator
On end, transmission gear B, which is fixedly attached to, to be corresponded to the position of transmission gear A on the outer aluminum barrel of projective module group and engages with transmission gear A,
Contact A and contact B access direct current generator circuit, and direct current generator uses GA type DC speed-reducing, are made by travel switch control
Just turning around again after its node it is counter turn around, using direct current generator drive projective module group rotation adjust its horizontal direction project, rectify
The projection of anacline.
The vertical stability maintenance mechanism includes stability maintenance bar, cavity, stability maintenance coil, permanent magnets and the internal driving gas filled with helium
The both ends of capsule, the stability maintenance bar are fixed by the connecting rod on the bottom wall for being connected to casing, and cavity is provided in stability maintenance bar and forever
Magnetic patch is slidably connected in cavity, and stability maintenance coil is socketed in the outside of stability maintenance bar, and the both ends of stability maintenance coil are bonded with driving gas
Capsule, the energization of stability maintenance coil generate magnetic field and mutually attract with suction bar, and for adjusting projective module group position, driving air bag drives stability maintenance line
Circle movement, when stability maintenance coil is overlapped with permanent magnets, the two magnetic field is cancelled out each other to adapt to the angle of projective module group and carry out adaptability
Adjustment.
Preferably, the projector mechanism further includes arc-shaped gear, and ten arc-shaped gears are fixedly connected on the inner bottom wall of arc cap,
And arc-shaped gear, suction bar and arc cap are located at same axle center.
Preferably, ten arc-shaped gears it is adjacent between be divided into a quarter of suction bar diameter, and arc-shaped gear is remote
One side from arc cap bottom wall is arc-shaped, and the height of arc-shaped gear is attract shank diameter 1/6th.
Preferably, the length of the stability maintenance coil is the half of stability maintenance pole length, drives diameter and the stability maintenance of air bag
The diameter of coil is identical and is located at same axle center.
Preferably, projective module group is parallel to each other with stability maintenance bar when the casing is horizontal positioned, permanent magnets upper surface and attraction
Bar peripheral pole is identical.
Preferably, the section of the stability maintenance bar is arc-shaped, and the axle center side disposed thereon of stability maintenance bar, the medial surface of stability maintenance bar
Corresponding projective module group, permanent magnets are wider to the coverage of suction bar.
Preferably, the length of the permanent magnets is the half of cavity length, and the length of cavity is stability maintenance pole length
5/6ths.
Preferably, the both ends of the permanent magnets pass through elastic band and are fixedly connected respectively with the both ends of cavity, transmission gear A
Upper rack is arc-shaped, and the heeling condition for adapting to projective module group 21 to engage with transmission gear B.
In use, casing is placed on desk, when casing is in non-equilibrium state, when projected picture tilts, liquid
Intracavitary bubble is not located therein, and contact A is connected to contact B by conduction liquid, and direct current generator, which is powered, to be operated, and is first just being turned around
Counter turn around drives projective module group to rotate again, while balance weight and then moves, and touches when in sap cavity in the middle part of bubble motion to sap cavity
Point A and contact B is detached from, and direct current generator power-off shuts down, and normotopia is in projective module group level；
Vertical direction, stability maintenance coil control power on/off by external switch, and (1) projects module group lens and is directed toward above curtain, permanent magnets
On the right side of cavity, stability maintenance coil floats to the left end of stability maintenance bar, and permanent magnets and suction bar, which repel each other, pushes projective module group to be in just
Position, (2) project module group lens and are directed toward below curtain, and permanent magnets move to the left side of cavity, and it is right that stability maintenance coil floats to stability maintenance bar
End, the magnetic field suction suction bar that the energization of stability maintenance coil generates, which makes projective module group pull stretch cord, makes projective module group be in normotopia；
When casing itself is in a horizontal position, permanent magnets are by elastic band effect in the middle part of stability maintenance bar, and corresponding suction bar middle part is not
It is formed and attracts or repel.
By using preceding solution, the beneficial effects of the present invention are:
1, the novel art shows device, by the setting of horizontal stability maintenance mechanism 4, projects run-off the straight in projective module group 21
When, the on-off of direct current generator 46 is controlled by the flowing of conduction liquid 43 in sap cavity 42 to adjust projective module group 21, is utilized simultaneously
The flowing of conduction liquid 43 forms level meter mechanism to ensure that projector horizontal direction is in normotopia in sap cavity 42.
2, the novel art shows device, by the setting of vertical stability maintenance mechanism 5, after being powered using stability maintenance coil 53
The magnetic field of generation is respectively formed and attracts and repels with the magnetic field of permanent magnets 54 and suction bar 23, adjusts to the upright position of projection
Whole, permanent magnets 54 are moved from the position of stability maintenance coil 53 with the different obliquities of casing 1, adjust 21 position of projective module group
It is allowed in normotopia.
3, the novel art shows device, and the setting of stability maintenance ring 3 enables projective module group 21 to be in one end in casing 1
Enough flexible primings pass through the setting of arc-shaped gear 6 to cooperate horizontal stability maintenance mechanism 4 and vertical stability maintenance mechanism 5 to form adaptive adjustment
It is classified the position of suction bar 23, Yi Dingwei.
Detailed description of the invention
Fig. 1 is schematic diagram of internal structure of the present invention；
Fig. 2 is the sectional view of projector mechanism of the present invention；
Fig. 3 is the sectional view of present invention knot stability maintenance bar.
In figure: 1 casing, 2 projector mechanisms, 21 projective module groups, 22 arc caps, 23 suction bars, 24 stretch cords, 3 stability maintenance rings,
4 horizontal stability maintenance mechanisms, 41 balance weights, 42 sap cavities, 43 conduction liquids, 44 contact As, 45 contact B, 46 direct current generators, 47 transmission gears
A, 48 transmission gear B, 5 vertical stability maintenance mechanisms, 51 stability maintenance bars, 52 cavitys, 53 stability maintenance coils, 54 permanent magnets, 55 driving air bags, 6
Arc-shaped gear, 7 elastic bands.
Specific embodiment
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of novel art displaying device, including casing
1, projector mechanism 2, stability maintenance ring 3, horizontal stability maintenance mechanism 4 and vertical stability maintenance mechanism 5, projector mechanism 2 are arranged in casing 1, stability maintenance
The upper and lower ends of ring 3 are respectively fixedly connected with the inner wall up and down in casing 1, and projector mechanism 2 is located in stability maintenance ring 3, horizontal stability maintenance
The upside of projector mechanism 2 in casing 1 is arranged in mechanism 4, and the downside of projector mechanism 2 in casing 1 is arranged in vertical stability maintenance mechanism 5,
The flexible priming in one end that the setting of stability maintenance ring 3 enables projective module group 21 to be in casing 1 is to cooperate horizontal stability maintenance mechanism 4 and hang down
Straight stability maintenance mechanism 5 forms adaptive adjustment, is classified the position of suction bar 23 by the setting of arc-shaped gear 6, Yi Dingwei.
Projector mechanism 2 includes the projective module group 21 for being made of outsourcing aluminum barrel camera lens and projection chip, arc cap 22, attracts
Bar 23 and stretch cord 24, one end of projective module group 21 is located at the inside of stability maintenance ring 3, and the lateral surface of the outer aluminum barrel of projective module group 21 is logical
It crosses four stretch cords 24 to be fixedly connected with the inner wall of stability maintenance ring 3, the other end of projective module group 21 is movably connected in machine by ball axis
The positive right end of shell 1, and the other end of projective module group 21 extends to the front side of casing 1, arc cap 22 is fixedly connected on projection
The lower surface of mould group 21, suction bar 23 is placed in arc cap 22, and suction bar 23 is middle part without the magnetic cylinder in magnetic both ends
Shape straight-bar.
Horizontal stability maintenance mechanism 4 include balance weight 41, sap cavity 42, conduction liquid 43, contact A 44, contact B45, direct current generator 46,
Transmission gear A47 and transmission gear B48, balance weight 41 are fixedly connected on the upper surface of the outer aluminum barrel of projective module group 21, and sap cavity 42
In the inside of balance weight 41, the conduction liquid 43 of its 4/5ths volume, contact A 44 and contact B45 difference are filled in sap cavity 42
In the sealing hole being connected to sap cavity 42 that lower wall on balance weight 41 opens up, direct current generator 46 is fixedly mounted on by L shape bar
In casing 1 on antetheca, and direct current generator 46 is located at the upside of positioning ring, and the output shaft of direct current generator 46 through casing 1 and extends
To 1 front side of casing, transmission gear A47 is fixedly attached on the output end of direct current generator 46, and transmission gear B48 is fixedly attached to throwing
The position of transmission gear A47 is corresponded on the outer aluminum barrel of shadow mould group 21 and is engaged with transmission gear A47, contact A 44 and contact B45 access
46 circuit of direct current generator, direct current generator 46 use 25GA370 type DC speed-reducing, after making its node by travel switch control
Just turning around again it is counter turn around, drive the rotation of projective module group 21 to adjust its horizontal direction using direct current generator 46 and project, correction inclines
Oblique projection, by the setting of horizontal stability maintenance mechanism 4, when projective module group 21 projects run-off the straight, by conductive in sap cavity 42
The flowing of liquid 43 adjusts projective module group 21 to control the on-off of direct current generator 46, while utilizing the stream of conduction liquid 43 in sap cavity 42
It is dynamic to form level meter mechanism to ensure that projector horizontal direction is in normotopia.
Vertical stability maintenance mechanism 5 includes stability maintenance bar 51, cavity 52, stability maintenance coil 53, permanent magnets 54 and inside filled with helium
Air bag 55 is driven, the both ends of stability maintenance bar 51 are fixed by the connecting rod on the bottom wall for being connected to casing 1, and cavity 52 is provided with stability maintenance
In bar 51 and permanent magnets 54 are slidably connected in cavity 52, and stability maintenance coil 53 is socketed in the outside of stability maintenance bar 51, stability maintenance coil 53
Both ends be bonded with driving air bag 55, stability maintenance coil 53, which is powered, to be generated magnetic field and 23 phase of suction bar and attracts, and is projected for adjusting
21 position of mould group, driving air bag 55 drives stability maintenance coil 53 to move, when stability maintenance coil 53 is overlapped with permanent magnets 54, the two magnetic field phase
It mutually offsets and is adaptively adjusted with the angle for adapting to projective module group 21, by the setting of vertical stability maintenance mechanism 5, utilize stability maintenance line
The magnetic field that circle 53 generates after being powered is respectively formed and attracts and repels with the magnetic field of permanent magnets 54 and suction bar 23, to the vertical of projection
Position is adjusted, and permanent magnets 54 are moved from the position of stability maintenance coil 53 with the different obliquities of casing 1, adjustment projection
21 position of mould group is allowed in normotopia.
Projector mechanism 2 further includes arc-shaped gear 6, and ten arc-shaped gears 6 are fixedly connected on the inner bottom wall of arc cap 22, and arc
Tooth 6, suction bar 23 and arc cap 22 are located at same axle center.
The a quarter of 23 diameter of suction bar is divided between ten arc-shaped gears 6 are adjacent, and arc-shaped gear 6 is far from arc-shaped cover
The one side of 22 bottom wall of shell is arc-shaped, and the height of arc-shaped gear 6 is 1/6th of 23 diameter of suction bar.
The length of stability maintenance coil 53 is the half of 51 length of stability maintenance bar, drives the diameter and stability maintenance coil 53 of air bag 55
Diameter it is identical and be located at same axle center.
Projective module group 21 is parallel to each other with stability maintenance bar 51 when casing 1 is horizontally arranged, 54 upper surface of permanent magnets and suction bar 23
Peripheral pole is identical.
The section of stability maintenance bar 51 is arc-shaped, and the axle center side disposed thereon of stability maintenance bar 51, and the medial surface of stability maintenance bar 51 is corresponding
Projective module group 21, permanent magnets 54 are wider to the coverage of suction bar 23.
The length of permanent magnets 54 is the half of 52 length of cavity, and the length of cavity 52 is six points of 51 length of stability maintenance bar
Five.
The both ends of permanent magnets 54 pass through elastic band 7 and are fixedly connected respectively with the both ends of cavity 52.
Claims (8)
1. a kind of novel art shows device, including casing (1), projector mechanism (2), stability maintenance ring (3), horizontal stability maintenance mechanism
(4) and vertical stability maintenance mechanism (5), it is characterised in that: projector mechanism (2) setting in casing (1), stability maintenance ring (3) it is upper
Lower both ends are respectively fixedly connected with the inner wall up and down in casing (1), and projector mechanism (2) is located in stability maintenance ring (3), horizontal stability maintenance machine
Structure (4) setting is arranged in the upside of casing (1) interior projector mechanism (2), vertical stability maintenance mechanism (5) in casing (1) interior projector mechanism
(2) downside；
The projector mechanism (2) includes the projective module group (21) that outsourcing aluminum barrel is made of camera lens and projection chip, arc cap
(22), suction bar (23) and stretch cord (24), one end of the projective module group (21) is located at the inside of stability maintenance ring (3), and projects
The lateral surface of mould group (21) outer aluminum barrel is fixedly connected by four stretch cords (24) with the inner wall of stability maintenance ring (3), projective module group
(21) the other end is movably connected in casing (1) positive right end by ball axis, and the other end of projective module group (21) extends to
The front side of casing (1), arc cap (22) are fixedly connected on the lower surface of projective module group (21), are placed in arc cap (22)
Suction bar (23)；
The horizontal stability maintenance mechanism (4) includes balance weight (41), sap cavity (42), conduction liquid (43), contact A (44), contact B
(45), direct current generator (46), transmission gear A(47) and transmission gear B(48), balance weight (41) is fixedly connected on projective module group
(21) upper surface of outer aluminum barrel, sap cavity (42) are located at the inside of balance weight (41), its 4/5ths appearance is filled in sap cavity (42)
Long-pending conduction liquid (43), contact A (44) and contact B(45) be located at that lower wall on balance weight (41) opens up with sap cavity (42) even
In logical sealing hole, direct current generator (46) is fixedly mounted on casing (1) interior antetheca by L shape bar, and direct current generator (46) position
In the upside of positioning ring, the output shaft of direct current generator (46) through casing (1) and is extended on front side of casing (1), transmission gear A
(47) it is fixedly attached on the output end of direct current generator (46), transmission gear B(48) it is fixedly attached to projective module group (21) outer aluminium
Transmission gear A(47 is corresponded on cylinder) position and engaged with transmission gear A(47)；
The vertical stability maintenance mechanism (5) includes stability maintenance bar (51), cavity (52), stability maintenance coil (53), permanent magnets (54) and inside
The both ends of driving air bag (55) filled with helium, the stability maintenance bar (51) are fixed by the connecting rod the bottom for being connected to casing (1)
On wall, cavity (52) is provided in stability maintenance bar (51) and permanent magnets (54) are slidably connected in cavity (52), stability maintenance coil (53)
It is socketed in the outside of stability maintenance bar (51), the both ends of stability maintenance coil (53) are bonded with driving air bag (55).
2. a kind of novel art according to claim 1 shows device, it is characterised in that: the projector mechanism (2)
It further include arc-shaped gear (6), ten arc-shaped gears (6) are fixedly connected on the inner bottom wall of arc cap (22), and arc-shaped gear (6), attraction
Bar (23) and arc cap (22) are located at same axle center.
3. a kind of novel art according to claim 2 shows device, it is characterised in that: ten arc-shaped gears
(6) a quarter of suction bar (23) diameter is divided between adjacent, and arc-shaped gear (6) is far from arc cap (22) bottom wall
One side is arc-shaped, and the height of arc-shaped gear (6) is 1/6th of suction bar (23) diameter.
4. a kind of novel art according to claim 3 shows device, it is characterised in that: the stability maintenance coil (53)
Length be stability maintenance bar (51) length half, drive air bag (55) diameter it is identical as the diameter of stability maintenance coil (53) and
Positioned at same axle center.
5. a kind of novel art according to claim 4 shows device, it is characterised in that: the casing (1) is horizontal
Projective module group (21) is parallel to each other with stability maintenance bar (51) when placement, permanent magnets (54) upper surface and suction bar (23) peripheral pole phase
Together.
6. a kind of novel art according to claim 5 shows device, it is characterised in that: the stability maintenance bar (51)
Section is arc-shaped, and the axle center side disposed thereon of stability maintenance bar (51).
7. a kind of novel art according to claim 6 shows device, it is characterised in that: the permanent magnets (54)
Length is the half of cavity (52) length, and the length of cavity (52) is 5/6ths of stability maintenance bar (51) length.
8. a kind of novel art according to claim 6 shows device, it is characterised in that: the permanent magnets (54)
Both ends pass through elastic band (7) and are fixedly connected respectively with the both ends of cavity (52), transmission gear A(47) upper rack is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811492133.XA CN109541872B (en) | 2018-12-07 | 2018-12-07 | Novel film and television art display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811492133.XA CN109541872B (en) | 2018-12-07 | 2018-12-07 | Novel film and television art display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109541872A true CN109541872A (en) | 2019-03-29 |
| CN109541872B CN109541872B (en) | 2020-09-01 |
Family
ID=65853932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811492133.XA Expired - Fee Related CN109541872B (en) | 2018-12-07 | 2018-12-07 | Novel film and television art display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109541872B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5243370A (en) * | 1988-08-30 | 1993-09-07 | Dan Slater | Camera stabilizer |
| CN1658062A (en) * | 2004-02-20 | 2005-08-24 | 精工爱普生株式会社 | Housing for electronic equipment and projector including the housing for electronic equipment |
| JP2007033874A (en) * | 2005-07-27 | 2007-02-08 | Thk Co Ltd | Projector projection position adjusting apparatus |
| CN103558731A (en) * | 2013-11-21 | 2014-02-05 | 江苏尚阳数字科技有限公司 | Integrated double-projector machine frame and integrated double projectors |
| CN207394295U (en) * | 2017-11-10 | 2018-05-22 | 李晓风 | A kind of Multifunctional teaching aid applied to career planing course |
| JP6375594B2 (en) * | 2013-06-10 | 2018-08-22 | 株式会社リコー | Installation device |
-
2018
- 2018-12-07 CN CN201811492133.XA patent/CN109541872B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5243370A (en) * | 1988-08-30 | 1993-09-07 | Dan Slater | Camera stabilizer |
| CN1658062A (en) * | 2004-02-20 | 2005-08-24 | 精工爱普生株式会社 | Housing for electronic equipment and projector including the housing for electronic equipment |
| JP2007033874A (en) * | 2005-07-27 | 2007-02-08 | Thk Co Ltd | Projector projection position adjusting apparatus |
| JP6375594B2 (en) * | 2013-06-10 | 2018-08-22 | 株式会社リコー | Installation device |
| CN103558731A (en) * | 2013-11-21 | 2014-02-05 | 江苏尚阳数字科技有限公司 | Integrated double-projector machine frame and integrated double projectors |
| CN207394295U (en) * | 2017-11-10 | 2018-05-22 | 李晓风 | A kind of Multifunctional teaching aid applied to career planing course |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109541872B (en) | 2020-09-01 |
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Granted publication date: 20200901 Termination date: 20211207 |