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Laser projection equipment

A technology of laser projection and equipment, applied in the field of projection, can solve the problems of increasing the complexity of the control system of the projection screen, and achieve the effects of avoiding the setting of the curling control system, reducing energy consumption, and saving electric energy

Pending Publication Date: 2022-01-21
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the related art, the retraction of the screen requires the cooperation of the curling controller, the curling motor and the reel, and further, it also needs to cooperate with the lifting controller included in the lifting mechanism, thus increasing the complexity of the control system of the projection screen. Spend

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Embodiment Construction

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0056] figure 1 It illustrates a schematic diagram of the unfolded structure of a projection screen of a laser projection device provided in an embodiment of the present application, figure 2 A schematic structural diagram of a laser projection device with a retracted projection screen provided in an embodiment of the present application is illustrated. Such as figure 1 and figure 2 As shown, the laser projection device includes an optical engine 1 and a projection screen 2 , wherein the projection screen 2 includes a base 21 , a curling mechanism 22 , a lifting mechanism 23 and a screen 24 . The curling mechanism 22 is rotatably limited on the base 21, the lifting mechanism 23 is fixed on the base 21, the first...

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Abstract

The embodiment of the invention discloses laser projection equipment, and belongs to the technical field of projection. The laser projection equipment comprises a containing part, an optical engine and a projection screen, wherein the optical engine is located in the inner cavity of the first containing part of the containing part, the projection screen comprises a base, a lifting mechanism, a curling mechanism and a screen sheet, the base is located in the inner cavity of the second containing part of the containing part, the screen sheet is fixedly connected with the lifting mechanism, the lifting mechanism can control the screen sheet to be unfolded, the curling mechanism comprises a connecting shaft, a winding drum and a clockwork spring device, the first end of the connecting shaft is connected with the side plate of the base, the second end of the connecting shaft is connected with the winding drum, the first end of the clockwork spring device is limited on the connecting shaft, the second end of the clockwork spring device is limited on the side plate or the winding drum, the screen sheet is fixedly connected with the winding drum, and the winding drum can rotate under the action of the clockwork spring device so as to control the screen sheet to be retracted. In the embodiment of the invention, the integration of the optical engine and the projection screen is realized, the structure of the curling mechanism is simplified, and the waste of electric energy is avoided.

Description

technical field [0001] The embodiments of the present application relate to the field of projection technologies, and in particular, to a laser projection device. Background technique [0002] With the continuous development of science and technology, laser projection equipment is more and more used in people's work and life. At present, laser projection equipment mainly includes an optical engine and a projection screen. The light output port of the optical engine faces the projection screen to emit light beams to the projection screen, and the projection screen is used to reflect the light beams to realize image display. [0003] In the related art, the projection screen includes a curling mechanism, a lifting mechanism and a screen sheet, wherein the curling mechanism includes a curling controller, a curling motor and a reel. The curling controller is electrically connected to the curling motor, the output shaft of the curling motor is fixedly connected to the reel, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/58
CPCG03B21/58
Inventor 陈友才赵云
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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