Image projection equipment
An image projection and equipment technology, which is applied in the field of image projection equipment with an inclination adjustment mechanism, and can solve problems such as image distortion
Inactive Publication Date: 2014-04-23
启东市天汾电动工具技术创新中心
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Problems solved by technology
However, when the tilt angle adjustment mechanism of the cabinet is adjusted to raise the tilt angle of the cabinet, the angle of the projection image projected by the projection module is also raised accordingly, so that the projected image will form a trapezoid due to the elevation of the lens, resulting in image distortion
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[0015] see figure 1 with 2 The image projection device 100 according to the embodiment of the present invention includes a casing 10 , a projection module 20 pivotally connected to the casing 10 , a casing tilt adjustment mechanism 30 and a projection module tilt adjustment mechanism 40 . The casing inclination adjustment mechanism 30 is linked with the projection module inclination adjustment mechanism 40, that is, when the angle of the casing 10 is adjusted through the casing inclination adjustment mechanism 30, the angle of the projected image of the projection module 20 also changes adaptively, so that the projection module Group 20 can project images at preset angles. Specifically, in this embodiment, the projection module inclination adjustment mechanism 40 is linked with the cabinet inclination adjustment mechanism 30 to maintain the projection direction of the projection module 20 in the horizontal direction.
[0016] Please also see image 3 , the casing 10 is as l...
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The invention provides image projection equipment which comprises a casing, a projection module group pivoted with the casing, a casing inclination angle adjusting mechanism and a projection module group inclination angle adjusting mechanism. The casing inclination angle adjusting mechanism comprises an extended screw thread member and a screw thread seat, wherein the screw thread seat is threadedly connected with the screw thread seat and extends from the bottom wall of the casing to adjust the elevation angle of the casing. The projection module group inclination angle adjusting mechanism comprise a driving wheel driven by the extended screw thread member, a driven wheel driven by the driving wheel, a first screw thread member fixedly connected with the driven wheel, a first connecting piece pivoted with the projection module group, a second connecting piece which is slideably coupled with the first connecting piece, and the second screw thread member which is fixedly connected with the second connecting piece and is threadedly connected the first screw thread. Driven by the first driven wheel, the first screw thread member and the second screw thread member generate relative movement to adjust the inclination angle of the projection module group. The casing inclination angle adjusting mechanism of the image projection equipment forms a linkage with the projection module group inclination angle adjusting mechanism.
Description
technical field [0001] The present invention relates to an image projection device, in particular to an image projection device with an inclination adjustment mechanism. Background technique [0002] The image projection device includes a casing and a projection module. A projection port is opened on one side of the casing, and the projection module is accommodated in the casing and projects images through the projection port of the casing. In order to adjust the height of the projected image on the screen, an organic casing inclination adjustment mechanism is usually configured to adjust the elevation angle of the image projection device. [0003] An existing casing inclination adjustment mechanism includes an outwardly extending screw and a threaded seat fixed to the casing. The externally extending screw is screwed to the threaded seat and protrudes from the bottom wall of the casing. By rotating the outwardly extending threaded member, the length of the outwardly protr...
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IPC IPC(8): G03B21/00G03B21/14
CPCG03B5/06G03B21/142G03B21/145
Inventor 谢明志李宗熙
Owner 启东市天汾电动工具技术创新中心