WO2021026975A1 - 一种投影装置 - Google Patents
一种投影装置 Download PDFInfo
- Publication number
- WO2021026975A1 WO2021026975A1 PCT/CN2019/103834 CN2019103834W WO2021026975A1 WO 2021026975 A1 WO2021026975 A1 WO 2021026975A1 CN 2019103834 W CN2019103834 W CN 2019103834W WO 2021026975 A1 WO2021026975 A1 WO 2021026975A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fixed
- motor
- unit
- projection
- projection device
- Prior art date
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Classifications
-
- 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
- G03B21/28—Reflectors in projection beam
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/182—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors
- G02B7/1821—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for mirrors for rotating or oscillating mirrors
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
- H04N9/3185—Geometric adjustment, e.g. keystone or convergence
Definitions
- the present invention relates to the field of projection display technology, in particular to a projection device.
- the purpose of the present invention is to provide a projection device that can conveniently adjust the projection direction.
- an embodiment of the present invention provides a projection device, including:
- Projection unit used to project the projected picture
- a support frame one end of which is fixed to the projection unit
- An adjustment unit suspended on the other end of the support frame, for adjusting the rotation angle
- the reflection unit is fixed to the adjustment unit and is used for reflecting the projection image, and the adjustment unit is used for adjusting the reflection direction of the reflection unit.
- the adjustment unit includes:
- the first rotating component is fixed to the other end of the support frame
- the second rotating component is fixed to the first rotating component
- the reflecting unit is fixed to the second rotating component
- the first rotating component is used to drive the second rotating component to rotate in a first direction.
- the second rotating component is used for driving the reflecting unit to rotate in a second direction, and the first direction is different from the second direction.
- the first rotating component includes: a driven gear, a driving gear, and a first motor;
- the driven gear is fixed to the second rotating assembly
- the first motor is fixed to the support frame
- the rotating shaft of the first motor is fixed to the driving gear
- the driving gear is connected to the driven gear. Gear meshing.
- the second rotating assembly includes: a second motor and a first support arm;
- the first support arm is rotatably connected with the support frame, the driven gear is fixed to the first support arm, the housing of the second motor is fixed to the reflecting unit, and the shaft of the second motor Fixed with the first support arm.
- the second rotating assembly further includes: a second support arm
- One end of the second support arm is fixed with the first support arm, and the other end is rotatably connected with the housing of the second motor.
- the second rotating component includes: a motor fixing frame
- the reflecting unit is fixed on the motor fixing frame, the second motor is fixed in the motor fixing frame, and the rotating shaft of the second motor extends from the motor fixing frame, and the motor fixing frame is connected to The other end of the second support arm is rotatably connected.
- the first motor and the second motor are both stepper motors.
- the projection device further includes:
- the first position sensor is fixed to the first motor
- the second position sensor is fixed on the first support arm.
- the reflecting unit is a reflecting mirror.
- the projection device further includes: a microcontroller
- the microcontroller is connected to the adjustment unit, and the microcontroller is used to control the rotation of the adjustment unit.
- the beneficial effect of the embodiment of the present invention is: different from the situation of the prior art, the embodiment of the present invention provides a projection device, which is provided with a projection unit for projecting a projected image, and is provided with One end is fixed to the support frame of the projection unit, and the other end of the support frame is used to suspend the adjustment unit.
- a reflection unit is fixed on the adjustment unit for reflecting the projection image.
- the reflection direction of the reflection unit can be adjusted by adjusting the rotation angle of the adjustment unit.
- the projection device provided by the embodiment of the present invention can adjust the projection direction portable.
- FIG. 1 is a schematic structural diagram of a projection device provided by an embodiment of the present invention.
- FIG. 2 is a top view of the projection device shown in FIG. 1;
- Fig. 3 is an exploded view of the adjusting unit and the reflecting unit in the projection device shown in Fig. 1.
- the present invention provides an embodiment of an apparatus. Please refer to FIGS. 1 and 2, which are a schematic structural diagram and a top view of a projection apparatus provided by an embodiment of the present invention.
- the projection apparatus 100 includes: a projection unit 10, The support frame 20, the adjustment unit 30 and the reflection unit 40.
- the projection unit 10 is used to project a projection image, one end of the support frame 20 is fixed to the projection unit 10, and the adjustment unit 30 is hung on the other end of the support frame 20 for adjusting the angle of rotation.
- the unit 40 is fixed to the adjusting unit 30 for reflecting the projection image, and the adjusting unit 30 is used for adjusting the reflection direction of the reflecting unit 40.
- the projection unit 10 may be an aluminum alloy casing to facilitate heat dissipation.
- the projection unit 10 has a small device space and is very portable.
- the adjustment unit 30 can adjust the reflection direction of the reflection unit 40 in at least two different directions.
- the projection device 100 provided in the embodiment of the present invention is provided with a projection unit 10 for emitting projection images, and is provided with a support frame 20 fixed at one end of the projection unit 10, and the other end of the support frame 20 is used to suspend the adjustment unit 30.
- the reflecting unit 40 is fixed on the unit 30 for reflecting the projection image, and the reflection direction of the reflecting unit 40 can be adjusted by adjusting the rotation angle of the adjusting unit 30, so that the reflecting unit 40 reflects the projected image to the target projection position.
- the embodiment of the present invention provides The projection device 100 can adjust the projection direction portable.
- the adjusting unit 30 includes: a first rotating component 31 and a second rotating component 32.
- the first rotating component 31 is fixed to the other end of the support frame 20, the second rotating component 32 is fixed to the first rotating component 31, and the reflecting unit 40 is fixed to the second rotating component 32,
- the first rotating component 31 is used to drive the second rotating component 32 to rotate in a first direction
- the second rotating component 32 is used to drive the reflecting unit 40 to rotate in a second direction. It is not the same as the second direction.
- the first direction is a yaw angle
- the second direction is a pitch angle
- the first direction and the second direction may be two directions that are perpendicular to each other, or may be two directions that are not perpendicular to each other but are not the same, and can be set according to actual needs. It is necessary to stick to the limitations of the embodiments of the present invention.
- FIG. 3 is an exploded view of the adjusting unit 30 and the reflecting unit 40 in the projection device 100 shown in FIG. 1. among them,
- the first rotating assembly 31 includes: a driven gear 311, a driving gear 312, and a first motor 313.
- the driven gear 311 is fixed to the second rotating assembly 32, and the first motor 313 is fixed to the support.
- the shaft of the first motor 313 is fixed to the driving gear 312, and the driving gear 312 meshes with the driven gear 311.
- the driven gear 311, which is the large gear shown in the figure, and the driving gear 312, which is the small gear shown in the figure, form a gear reduction box, and the first motor 313 drives the gear reduction box.
- the second rotating assembly 32 fixed on the driven gear 311 rotates around the central axis of the driven gear 311.
- the second rotating assembly 32 includes: a second motor 321 and a first support arm 322, the first support arm 322 is rotatably connected to the support frame 20, and the driven gear 311 is fixed to the first support arm 322.
- the housing of the second motor 321 is fixed to the reflecting unit 40, and the rotating shaft of the second motor 321 is fixed to the first support arm 322.
- the first motor 313 and the second motor 321 are both stepping motors.
- the reflecting unit 40 is a reflecting mirror.
- the projection device 100 further includes a micro-controller (not shown), the micro-controller is connected to the adjustment unit 30, and the micro-controller is used to control the rotation of the adjustment unit 30.
- the first motor 313 and the second motor 321 are respectively provided with corresponding motor winders to avoid winding when the adjusting unit 30 rotates.
- the second rotating assembly 32 further includes: a second support arm 323, one end of the second support arm 323 is fixed to the first support arm 322, and the other end is connected to the second motor
- the housing of the 321 is connected in rotation.
- the second support arm 323 and the first support arm 322 can be two parts that can be disassembled as shown in the figure, or can be integrally produced parts in a mold.
- the second support arm 323 passes through a bearing 325 is rotatably connected with the second motor 321.
- the second rotating assembly 32 includes a motor fixing frame 324, the reflection unit 40 is fixed on the motor fixing frame 324, and the second motor 321 is fixed in the motor fixing frame 324 And the rotating shaft of the second motor 321 extends from the motor fixing frame 324, and the motor fixing frame 324 is rotatably connected to the other end of the second support arm 323.
- the second motor 321 rotates to drive the first support arm 322 fixedly connected to its rotating shaft, the motor fixing frame 324 for fixing the second motor 321, and the The reflection unit 40 of the motor fixing frame 324 rotates in the second direction.
- the rotation angle range of the projection device 100 in the second direction is 0-80 degrees.
- the projection device 100 further includes: a first position sensor 50 and a second position sensor 60, the first position sensor 50 is fixed to the first motor 313, and the second position sensor 60 is fixed. On the first support arm 322.
- the first position sensor 50 and the second position sensor 60 are angular displacement sensors, and further, may be capacitive sensors with higher sensitivity to measure the first rotating component 30 and
- the change of the angular displacement of the second rotating component 40 is a sensing device that can convert the measured angular displacement of the shaft rotation into an electrical signal through a change in capacitance.
- the projection device provided by the embodiment of the present invention is provided with an adjustment unit, specifically, by providing a first rotating component and a second rotating component, the mirror unit can be flexibly adjusted in multiple angles, and the projection screen and the projection light source can be reflected in a larger range.
- the mirror unit reflects to the projection area or target projection position.
- An embodiment of the present invention provides a projection device, which is provided with a projection unit for emitting a projected image, and is provided with a support frame fixed at one end of the projection unit, and the other end of the support frame is used to suspend an adjustment unit.
- a reflecting unit is fixed on the top to reflect the projected image, and the reflecting direction of the reflecting unit can be adjusted by adjusting the rotation angle of the adjusting unit, so that the reflecting unit can reflect the projected image to the target projection position.
- the projection device provided by the embodiment of the present invention can be portable Adjust the projection direction.
- the device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physically separate. Units can be located in one place or distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Geometry (AREA)
- Optics & Photonics (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Projection Apparatus (AREA)
Abstract
Description
Claims (10)
- 一种投影装置,其特征在于,包括:投影单元,用于出射投影画面;支撑架,其一端固定于所述投影单元;调节单元,悬挂于所述支撑架的另一端,用于调节转动角度;反射单元,固定于所述调节单元,用于反射所述投影画面,所述调节单元用于调整所述反射单元的反射方向。
- 根据权利要求1所述的投影装置,其特征在于,所述调节单元包括:第一旋转组件,固定于所述支撑架的另一端;第二旋转组件,固定于所述第一旋转组件,所述反射单元固定于所述第二旋转组件,所述第一旋转组件用于驱动所述第二旋转组件在第一方向转动,所述第二旋转组件用于驱动所述反射单元在第二方向上转动,所述第一方向与所述第二方向不相同。
- 根据权利要求2所述的投影装置,其特征在于,所述第一旋转组件包括:从动齿轮、驱动齿轮和第一电机;所述从动齿轮固定于所述第二旋转组件,所述第一电机固定于所述支撑架,并且所述第一电机的转轴与所述驱动齿轮固定,所述驱动齿轮与所述从动齿轮啮合。
- 根据权利要求3所述的投影装置,其特征在于,所述第二旋转组件包括:第二电机和第一支撑臂;所述第一支撑臂与所述支撑架转动连接,所述从动齿轮固定于所述第一支撑臂,所述第二电机的壳体与所述反射单元固定,所述第二电机的转轴与所述第一支撑臂固定。
- 根据权利要求4所述的投影装置,其特征在于,所述第二旋转组件还包括:第二支撑臂;所述第二支撑臂的一端与所述第一支撑臂固定,并且另一端与所述第二电机的壳体转动连接。
- 根据权利要求5所述的投影装置,其特征在于,所述第二旋转组件包括:电机固定架;所述反射单元固定于所述电机固定架上,所述第二电机固定于所述电机固定架内,并且所述第二电机的转轴从所述电机固定架伸出,所述电机固定架与所述第二支撑臂的另一端转动连接。
- 根据权利要求6所述的投影装置,其特征在于,所述第一电机和第二电机均为步进电机。
- 根据权利要求4所述的投影装置,其特征在于,所述投影装置还包括:第一位置传感器,固定于所述第一电机;第二位置传感器,固定于所述第一支撑臂上。
- 根据权利要求1所述的投影装置,其特征在于,所述反射单元为反射镜。
- 根据权利要求1所述的投影装置,其特征在于,所述投影装置还包括:微型控制器;所述微型控制器与所述调节单元连接,所述微型控制器用于控制所述调节单元转动。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US17/504,462 US20220035231A1 (en) | 2019-08-09 | 2021-10-18 | Projection apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201910734182.8 | 2019-08-09 | ||
CN201910734182.8A CN110519577B (zh) | 2019-08-09 | 2019-08-09 | 一种投影装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US17/504,462 Continuation US20220035231A1 (en) | 2019-08-09 | 2021-10-18 | Projection apparatus |
Publications (1)
Publication Number | Publication Date |
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WO2021026975A1 true WO2021026975A1 (zh) | 2021-02-18 |
Family
ID=68624607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2019/103834 WO2021026975A1 (zh) | 2019-08-09 | 2019-08-30 | 一种投影装置 |
Country Status (3)
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US (1) | US20220035231A1 (zh) |
CN (1) | CN110519577B (zh) |
WO (1) | WO2021026975A1 (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN209182645U (zh) * | 2018-12-29 | 2019-07-30 | 广景视睿科技(深圳)有限公司 | 一种投影装置 |
CN111610688B (zh) * | 2020-05-26 | 2022-01-11 | 广景视睿科技(深圳)有限公司 | 一种自动调节投影装置 |
CN111965928B (zh) * | 2020-09-04 | 2022-04-19 | 福州威泰思光电科技有限公司 | 一种可折叠的反射镜镜架 |
CN113467165A (zh) * | 2021-07-08 | 2021-10-01 | 广景视睿科技(深圳)有限公司 | 一种投影装置 |
CN113596419B (zh) * | 2021-07-16 | 2022-10-14 | 广景视睿科技(深圳)有限公司 | 一种控制投影设备的方法、装置及电子设备 |
CN113467167B (zh) * | 2021-07-19 | 2023-10-27 | 广景视睿科技(深圳)有限公司 | 一种投影装置 |
WO2023023985A1 (zh) * | 2021-08-25 | 2023-03-02 | 广景视睿科技(深圳)有限公司 | 一种投影装置 |
CN114815471B (zh) * | 2022-04-20 | 2023-09-26 | 峰米(重庆)创新科技有限公司 | 投影装置 |
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2019
- 2019-08-09 CN CN201910734182.8A patent/CN110519577B/zh active Active
- 2019-08-30 WO PCT/CN2019/103834 patent/WO2021026975A1/zh active Application Filing
-
2021
- 2021-10-18 US US17/504,462 patent/US20220035231A1/en not_active Abandoned
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US7452085B2 (en) * | 2005-07-07 | 2008-11-18 | Infocus Corporation | Dynamically adjustable fold-mirror assembly for projection device |
CN104865778A (zh) * | 2014-02-24 | 2015-08-26 | 联想(北京)有限公司 | 一种投影装置及电子设备 |
CN107367894A (zh) * | 2017-07-13 | 2017-11-21 | 成都锐梵互动科技有限责任公司 | 一种反射装置、一种投影***及该投影***的投影方法 |
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CN209182645U (zh) * | 2018-12-29 | 2019-07-30 | 广景视睿科技(深圳)有限公司 | 一种投影装置 |
Also Published As
Publication number | Publication date |
---|---|
US20220035231A1 (en) | 2022-02-03 |
CN110519577A (zh) | 2019-11-29 |
CN110519577B (zh) | 2021-04-23 |
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