Projection ray machine
A technology of projector light and projection beam, applied in optics, optical components, installation, etc., can solve the problems of inconvenient use, waste of resources, occupying space, etc., and achieve the effect of simple and compact structure, reduced overall volume, and flexible and convenient use
Pending Publication Date: 2021-10-15
GOERTEK OPTICAL TECH CO LTD
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Problems solved by technology
[0003] With the increase of user demand, the user needs to use the audio-visual entertainment function of the projector in some cases, and the education and teaching function of the projector in other cases. Therefore, the user can only purchase two kinds of projectors with different functions at the same time. , this method firstly takes up space and wastes resources, and secondly, it is not convenient to use
Therefore, it is increasingly difficult for single-function projectors to meet the needs of modern users
Method used
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0025] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0026] In addition, if there are descriptions involving "first", "second" and ...
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The invention discloses a projection light machine, and the projection light machine comprises a projection imaging system, a first lens group, a second lens group, a reflector and a driving device; the projection imaging system is used for emitting a projection light beam; the first lens group and the second lens group are arranged at the emergent end of the projection imaging system, and the optical axis of the second lens group and the optical axis of the first lens group are crossed; the reflector is used for reflecting the projection light beam; the driving device comprises a first electromagnet, a first magnet and a rotating shaft, the reflecting mirror is rotatably arranged on the rotating shaft, the first electromagnet is arranged on one side of the reflecting mirror, and the first magnet is fixedly arranged on the reflecting mirror; and the first electromagnet is used for introducing forward or reverse current to adsorb or repel the first magnet so as to drive the reflector to rotate, so that the projection light beam is emitted through the first lens group or the second lens group. According to the technical scheme, the double functions of wall projection or desktop projection can be achieved by automatically adjusting the position of the reflector, and different use requirements of users are met.
Description
technical field [0001] The invention relates to the field of projection equipment, in particular to a projection light machine. Background technique [0002] With the development of micro-projector technology, more and more household projectors have entered people's field of vision, and are developing towards the direction of miniaturization and portability. At present, the uses of home projectors mainly include two aspects: audio-visual entertainment and education and teaching. Among them, the projectors used for audio-visual entertainment generally have a relatively large projection ratio, because the design difficulty and manufacturing cost of the projectors with large projection ratios are relatively low, so they have high cost performance; and the projectors used for education and teaching The computer generally adopts the desktop projection mode, and projects a 20cm picture on the desktop at a height of about 40cm, and the projection required at this time is relativel...
Claims
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Login to View More IPC IPC(8): G03B21/14G03B21/28G02B7/182
CPCG03B21/14G03B21/28G02B7/1821
Inventor 王帅赵云
Owner GOERTEK OPTICAL TECH CO LTD