SU1278789A1 - Projection device - Google Patents

Abstract

The invention relates to optical instrument making and allows enhancing the artistic expressiveness of a device by creating light effects and enhancing its information capabilities. The projection unit of the device contains stencils 7 and 8 fixed on the shaft of the electric drive 6, illuminated by point sources of light 9 in the direction of the translucent screens 10 and 11. After the projector shows 4 slides, stencils 7, 8 rotate to form light reflections in the form of an ornament, which can be moved , for example, the inscription of an advertising h.-racter is illuminated by the source 17 of the light of the second projector, made in the form of an annular tape-tape of the female mechanism. 1 il. 20 f 6 7 .9 8 // /, I f / i (Zu -vl 00 M 00

Description

The invention relates to optical instrumentation, specifically to devices for producing light effects when projecting images.

The aim of the invention is to enhance the lighting effects and enhance the information capabilities.

The drawing shows the device, the overall appearance.

The housing of the device is made in the form of a frame 1 of a cubic form (for example, with a volume of 1 m) on which walls 2 and 3 are fixed. Inside the wall 3 there is a projector 4 or two projectors with a remote control slide magazine, a mirror 5 and a projection unit containing electric drive 6, on the shaft of which a stencil 7 is fixed in the form of a disk or glass with jagged protrusions, having openings of any shape, which can be covered with a slide fragment or film light filter, as well as a stencil 8, and stencils 7 and 8 can be made and positive on glass with a color image of various objects.

Stencils 7 and 8 are illuminated by point sources of light 9 in the direction of walls 10 and 11 (screens) J made of organic glass with a matte surface. And on the screen 10, the image of the projector 4 is projected through the mirror 5 and mounted on the wall 2 on the hinge suspension 12 with the possibility of rotation of the mirror 13.

On the wall 2, behind the back side of the mirror 13, a bracket 14 is installed with rollers 15 guiding the film 16, which is illuminated by the light source 17, having a filament body of the smallest possible size (for example, 1-2 mm) and placed in a box 18, along the perimeter shielded by several layers of aluminum foil made of fiberglass, and on the sides provided with air vents. One of the guide rollers of the drive has jagged ledges, clinging with perforation of the film, and is mounted on the shaft of the electric drive 19,

Mirror 5, as well as mirror 13, is mounted on a hinged suspension 20, which can be rotated during alignment of the projection device.

The device works in a CJ way.

Projector 4 with the help of mirrors 5 and 13 illuminates the surface (1 1 m) of screen 10 (light beam boundaries are indicated by a dotted line) for an interval of time, for example, 20 s for each slide. After showing, for example, four slides, the projector 4 is turned off and the electric drive 6 is turned on and the sources 9 of light Stencils 7 and 8 rotate for a predetermined time (at a speed of about 1-2 rpm) and form light reflections in the form of an orcam: the axis of symmetry of which passes in the middle of screens 10 and 11, Zlyty-gentsy ornament can correspond to the subject of the displayed image of the slide. Similarly, another type of ornament is projected on the remaining walls of the cube (not shown). The ornament, which changes due to the rotation of stencils 7 and 8, can be moved, for example, from the bottom up, an advertising inscription, interrogated more intensively by the source 17 of light, the actuator 19 is turned on, and the film 16 with the inscription moves in a movie window at a low speed (for example, 1 m in 30 s). The presence of a two slide projector (not shown) allows for an influx of images. The control of motors, light sources can be carried out automatically by means of a contact device with a cam. Memory mechanism (not shown), as well as with a memory device with a magnetic tape in the form of a tape recorder (not shown). The control can also be carried out remotely to the remote control automatically and manually. An audio device can be placed inside the cube.

When disconnected; A slide projection device can be used as a decorative luminaire.

The projection device can be attached to any piece, for which fasteners are provided, for example eye bolts 21, from the side of the opaque wall. In the case of erecting stencils 7 and 8 in the form of stakak, the ornament can be projected simultaneously on three walls, while using sl3

projectors with a short-focus (wide-angle) lens eliminates mirrors.

Claims (1)

Invention Formula A projection device comprising a body, one of the walls of which is made in the form of a translucent screen, as well as projectors placed inside the body, the projection planes of which are combined on the translucent screen by means of reflecting mirrors, in order to enhance artistic expressiveness by creating light effects and informational 787894 possibilities, the body is made in the form of a cube, the second wall of which, adjacent to the first wall, is made in the form of a translucent screen, and one of the 5 projectors is made in the form of an annular tape drive mechanism with a point light source located in it and mounted on the wall of the body opposite the first one: the device is equipped with a projection unit in the form of stencils installed with the possibility of rotation, each of which is associated with a corresponding light source, with prol f. - the vector and the projection unit are placed on the wall of the body opposite its second wall.