Automatic lens protection device and projector using same
An automatic protection and lens technology, applied in projection devices, instruments, optics, etc., can solve the problems of automatic opening, automatic closing, and complex structure of driving components, and achieve the effect of low manufacturing cost and simple structure
Active Publication Date: 2021-01-05
QISDA OPTRONICS (SUZHOU) CO LTD
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- Application Information
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Problems solved by technology
[0004] But above-mentioned first kind of lens protective cover needs manual operation, can't open automatically when projector starts to work or close automatically when projector stops working, and although second kind of lens protective cover can be opened and closed automatically, but existing The structure of the driving parts is complex, which increases the manufacturing cost of the entire lens protection device
Method used
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[0019] In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.
[0020] Please refer to figure 1 and figure 2 , figure 1 It is a schematic diagram of the structure of the automatic lens protection device according to an embodiment of the present invention when the electromagnetic switch is powered off, figure 2 It is a schematic diagram of the structure of the automatic lens protection device according to an embodiment of the present invention when the electromagnetic switch is energized. The automatic lens protection device 100 is used to protect the lens 300 disposed in the casing 200 , and the casing 200 is provided with a lens hole 400 corresponding to the lens 300 .
[0021] The automatic lens protection device 100 includes a track 3 , an elastic element 4 , a lens baffle 5 , a driving link 6 and an electromagnetic switch...
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The invention provides an automatic lens protection device and a projector applying the same. The automatic lens protection device comprises a track, an elastic element, a lens baffle, a driving connecting rod and an electromagnetic switch; one end of the driving connecting rod is connected to the lens baffle; when the lens begins to work, the electromagnetic switch is electrified to generate suction force, and the other end of the driving connecting rod is in magnetic attraction to be in contact with the electromagnetic switch; one end of the driving connecting rod pushes the lens baffle in the first direction, the lens baffle moves along the track and enables the elastic element to deform, and the lens in a machine shell is exposed from a lens hole; when the lens stops working, the electromagnetic switch is powered off and does not generate suction force; the other end of the driving connecting rod is separated from the electromagnetic switch; the lens baffle moves in the second direction under the action of the elastic restoring force of the elastic element; and the lens hole is covered by the lens baffle to protect the lens in the machine shell. By virtue of the automatic lensprotection device, the protecting function of the lens can be automatically started, the lens can be integrated in a machine table and cannot be lost, and misoperation is not easy to occur.
Description
technical field [0001] The invention relates to the field of lens protection devices, in particular to an automatic lens protection device and a projector using the automatic lens protection device. Background technique [0002] At present, optical imaging must be completed by means of a lens in a projection display device or an imaging capture device. If the surface of the lens is scratched or covered with dust, the image projected or captured by the lens will be blurred. Therefore, it is necessary to keep the lens clean in such electronic devices and prevent external dust from adhering to the surface of the lens. [0003] The lens protection cover used in the prior art mainly has the following two forms: the first type uses a traditional projector as the main use scene, and a thread or buckle structure is provided on the projection opening of the projector, and a corresponding thread is provided on the lens protection cover. Or clamping structure, when the projector is to...
Claims
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IPC IPC(8): G03B21/14
CPCG03B21/14
Inventor 李宏鹏
Owner QISDA OPTRONICS (SUZHOU) CO LTD