FR2820808A1 - Light source allowing projection of images from a kaleidoscope, uses movable lenses and mirrors with rotating support for translucent images coupled to drive displacing lenses and mirrors - Google Patents

Abstract

The lamp has, in a line, a light source (1), two lenses (2), a rotating support for translucent images (4), a third lens (3) and a set of three mirrors at an angle of 60[deg] forming the kaleidoscope (13). Rotation of the lower part drives (9) a toothed wheel (8) which rotates the image support. This movement drives a screw (11) that increases or decreases the distance between the lenses.

Description

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La présente invention concerne le domaine des lampes non seulement éclairantes mais également munies d'une exigence esthétique et artistique. Qu'elle soit é-

suspendue ou encastrée, cette lampe projette des images, au travers d'un kaléidoscope, sur une surface libre. Les lampes à images existantes n'offrent pas la combinaison de possibilités ludiques de création, une grande variabilité d'effet, une adaptabilité aux besoins d'ambiance, et la transmission de symboles et messages, qu'offre un kaléidoscope combiné à une lampe de projection. DESCRIPTION

The present invention relates to the field of lamps not only illuminating but also provided with an aesthetic and artistic requirement. Let it be

suspended or recessed, this lamp projects images, through a kaleidoscope, onto a free surface. The existing image lamps do not offer the combination of playful creation possibilities, a great variability of effect, adaptability to the needs of the environment, and the transmission of symbols and messages, which a kaleidoscope combined with a lamp provides. projection.

The light from the bulb passes through two consecutive lenses located under the bulb, then through one of the four translucent images (type slide) printed on a glass disc, located in the same alignment after the lenses.

The result is a bright image, which after passing through a third lens under the glass disc, completing the optical system with the optimal light refraction of the first two lenses, will be reflected in three vertical mirrors placed at 600 relative to each other, to complete its race on a free surface.

The envelope of the assembly containing the lens and the kaleidoscope is provided, on the upper part of its outer wall, with an infinite screw thread guided by a stud fixed to the frame, so as to increase or reduce the distance between the lenses in order to optimize the refraction of light and modulate the effects of light images, by rotation of said assembly.

The image support of circular shape whose circumference is cut out like a toothed wheel is articulated on a toothed wheel, itself articulated on a toothed ring, actuated by the rotation of the assembly, constituted by the lens and the kaleidoscope of way to change the image.

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En référence à ces dessins, le dispositif comporte : éLa source de lumière est une ampoule d'un projecteur de diapositives (1). Elle est

fixée perpendiculairement au couvercle (5) et habillée d'un cylindre (15) comportant deux lentilles (2) à son extrémité libre. The accompanying drawings illustrate the invention: Figure 1 shows in vertical section, the device of the invention. Figure 2 shows in horizontal section AA, the device of the invention.

With reference to these drawings, the device comprises: éThe light source is a bulb from a slide projector (1). She is

fixed perpendicular to the cover (5) and covered with a cylinder (15) comprising two lenses (2) at its free end.

These two successive lenses (2) necessary for optimal light refraction are followed by the glass image support (4). The optical system is completed by a third lens (3) which is located under the image support (4) and at the top of the inner cylinder (16), called the envelope.

The glass image support (4) is printed with four translucent images (slide type). It rotates on an axis (14) suspended from the cover (5) and held by the screw (7) from below.

To exchange the image support (4), just slide two fingers into the holes (6) of the cover (5) and rotate the cover (5) until it is released (principle of the teapot cover). Then lift the upper part which will separate from the lamp frame (17) and unscrew the screw (7) under the image support (4). The heat emitted by the bulb (1) is naturally evacuated through the same holes (6) in the cover (5).

The image carrier (4) is cut around its circumference like a gear wheel and is driven below by a vertical gear wheel (8). The latter is actuated by the horizontal toothed ring (9), the only segment of the lower part which always remains at the same height.

The pin (10), which is linked to the inner cylinder (16), drives the toothed ring (9) and acts as a guide.

The inner cylinder, the envelope (16) of the assembly containing the lens (3) and the kaleidoscope (12) is provided on the upper part of its outer wall with an infinite screw thread (11) guided by a stud. integral with the frame (17) so as to increase or reduce the distance between the lenses (2) and (3) in order to optimize the refraction of light and modulate the effects of light images

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Sous la troisième lentille dans le cylindre intérieur (16) se trouvent trois miroirs rectangulaires (12) placés à 600 les uns par rapport aux autres, afin d'obtenir un kaléidoscope.

Under the third lens in the inner cylinder (16) are three rectangular mirrors (12) placed 600 relative to each other, in order to obtain a kaleidoscope.

The surface of the outlet cone (13) is reflective.

All parts except the lenses, the bulb and the mirrors are made of aluminum.

The device according to the invention is intended for lighting and interior decoration in the private home, but also for the decoration of public places in particular within the framework of the leisure industry, tourism, and entertainment.

The size of the lamp can vary from the smallest to the largest dimension. Thus for a large Millight, intended for example for airport halls, one can imagine adapting an engine or other actuation means for driving the lower part. Its size and color are determined by the aesthetic and functional needs of its environment.

Claims (4)

CLAIMS 1) Lighting device making it possible to project images through a kaleidoscope, on a free surface, characterized in that it comprises in the same alignment successively a light source (1), two lenses (2), the glass image support (4) (or other similar translucent materials) movable in rotation, a third lens (3) completing the optimal refractive action of the light of the first two lenses, being disposed between said support image and a set of three mirrors placed at 600 relative to each other forming the kaleidoscope (13). 2) Lighting device according to claim 1 characterized in that the assembly consisting of the light source (1), the lenses (2) and the translucent and thermostable image support is fixed on a removable cover (5) mobile in rotation disposed on the frame (17) so as to be able to exchange the image support. 3) A lighting device according to claim 1 and 2 characterized in that the circular image support is articulated by means of a gear with the assembly constituted by the lens (3) and the kaleidoscope (12), so as to modify the image projected on a free surface. 4) Lighting device according to claim 1,2 and 3 characterized in that the envelope (16) of the assembly containing the lens (3) and the kaleidoscope (12) is provided on the upper part of its outer wall an infinite screw pitch (11) guided by a stud fixed to the frame (17) so as to increase or reduce the distance between the lenses (2) and (3) in order to optimize the refraction of the light and modulate the effects of light images, by rotation of said set