Sealed damp-proof projection magic lantern
A technology of slideshow and projection, which is applied in the direction of air-proof/waterproof device, cooling/heating device of lighting device, outdoor lighting, etc. It can solve the problems of poor sealing of projection slideshow, and achieve clear and realistic patterns, beautiful and light appearance, and easy processing Effect
Active Publication Date: 2009-03-25
BEIJING XINGGUANG FILM & TV EQUIP TECH CO LTD
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Problems solved by technology
[0003] The object of the present invention is to overcome the problem of poor sealing performance of the above-mentioned projection slides, and provide a sealed moisture-proof projection slide
Method used
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[0025] A sealed moisture-proof projection slide lamp, which includes: a luminous body is arranged in the lamp body, a pattern sheet 20 is arranged at the front end of the lamp body, a lens tube 22 is arranged at the front end of the pattern sheet 20, and a lens 27 is arranged in the lens tube 22. , The right side plate 28 and the front and rear end covers 1, 6 and the upper cover plate 2, the bottom plate 11 are screwed into a rectangular shell, and sealed by the upper cover plate sealing ring 3; the luminous body in the lamp body and the pattern sheet 20 A fan 18 is arranged between; a lens barrel sealing ring 23 is arranged between the lens barrel 22 and the fastening ring 25 of the lens 27, and the lamp body is supported by the lamp body bracket 30.
[0026] The lamp body bracket 30 has two front and rear symmetrical side plates respectively arranged on both sides of the lamp body. The lamp body bracket 30 is a horizontal base provided with left and right shoulders. One shoulde...
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A hermetic damp-proof projection magic lantern comprising a luminous body in a lantern body, a picture sheet which is arranged on the front end of the lantern body, a lens drum which is arranged on the front end of the picture sheet and a lens in the lens drum. The lantern body is a rectangular casing which is screwed together by a left lateral plate, a right lateral plate, a front end cap, a back end cap, an upper cover plate and an end plate, and is sealed by a seal ring of the upper cover plate. A fan is arranged between the luminous body in the lantern body and the picture sheet, a lens drum seal ring is arranged between the fixing rings of the lens drum and the lens, and the lantern body is provided with a lantern body holdfast. The invention has the function of hermetic damp-proof function, can work permanently under the condition of 70% environmental moisture, and has no humidity in the lantern body and no rust spot on each component. The picture sheet in the lantern body does not deform, and resist moist, which does not affect the irradiated picture effect. Furthermore, the lens drum on the front end of the lantern body can be focused, and a hand button is arranged on the outer side of the lantern body to regulate irradiation angle according to requests. The invention has novel appearance, light volume and convenient installation and carrying.
Description
Technical field [0001] The invention relates to a projection slide lamp, in particular to a sealed moisture-proof projection slide suitable for stages, theaters, exhibition halls, outdoors, tunnels and various performance settings. Background technique [0002] The current projection slides on the market have poor sealing properties and are only suitable for indoor use, not suitable for outdoor work. If it is used in humid conditions for a long time, the gobo in the lamp body is easily deformed and the projected image is distorted. Traditional projected slides are drawn by professional dancers on the film base to paint the composition and color. The dancers are required to have a high level of production and painting foundation, otherwise it is difficult to draw slides. In particular, the hand-painted pattern sheet is easy to fade, the projected pattern is not clear, and the color is not good. Summary of the invention [0003] The purpose of the present invention is to overcome ...
Claims
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IPC IPC(8): F21V31/00F21V5/04F21V29/02F21V21/108F21V7/04F21V17/10F21W131/10F21W131/40F21V29/60
Inventor 翁正灵张国斌陈春生
Owner BEIJING XINGGUANG FILM & TV EQUIP TECH CO LTD