Film rolling mechanism and projection lamp
A projection lamp and film technology, applied in optics, instruments, projection devices, etc., can solve the problems of cumbersome operation and complicated structure of film change
Pending Publication Date: 2020-04-17
上海星迅科技有限公司
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Problems solved by technology
[0005] Aiming at the problems in the prior art that the film changing structure of the slide projection lamp is complicated and the operation is cumbersome, the purpose of the present invention is to provide a film winding mechanism
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[0021] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.
[0022] It should be noted that, in the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "back" etc. The description of the structure of the invention is only for the convenience of describing the invention, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus s...
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The invention discloses a film rolling mechanism and a projection lamp and belongs to the field of projection. The film rolling mechanism comprises a rack, the rack is rotatably connected with two mutually parallel reels, the rack is equipped with two driving motors, and the two driving motors are respectively and mechanically connected with the two reels; the film rolling mechanism also comprisesa film including a plurality of pictures, two ends of the film are respectively connected with the two reels, and the film is wound on the two reels; a film picture framing detection device is further installed on the rack, and each picture on the film is provided with a framing detection mark; the film rolling mechanism further comprises a controller, and the two driving motors and the film picture framing detection device are electrically connected with the controller. The projection lamp comprises a lamp holder, a light source and a lens, the light source and the lens are mounted on the lamp holder, the projection lamp further comprises the film rolling mechanism, the rack of the film rolling mechanism is mounted on the lamp holder between the light source and the lens, and the film isperpendicular to the projection direction of the projection lamp. The film rolling mechanism and a projection lamp are simple in structure, reasonable in design and easy to operate.
Description
technical field [0001] The invention relates to the field of projection equipment, in particular to a film winding mechanism and a projection lamp. Background technique [0002] Projector lamp, also known as projector, is a device that can project images or videos onto the screen. When it is used for general lighting, it can be widely used in outdoor lighting projects in homes, offices, schools and entertainment venues. At the same time It can also be used to create various lighting effects and project the required patterns. [0003] Slide projection lamp is a kind of projection lamp. When it works, it shines light on the film to project the picture pattern on the film, and continuously projects the pattern on the film in the form of slides; therefore, The slide projection lamps in the prior art all have a mechanism for changing the film. [0004] However, the picture conversion mechanism of the current slide projection lamp, that is, the film changer mechanism, has a rela...
Claims
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IPC IPC(8): G03B21/32
CPCG03B21/321
Inventor 邓性星
Owner 上海星迅科技有限公司