CN1078546A - Lighting device - Google Patents

Abstract

An illumination device for directing focused light from a light source to a defined point in space has mirrors arranged in the path of the light. The first flat mirror is disposed at an angle of about 45 to the path of the light and is rotatable 360 about an axis in the path of the light. The second flat mirror is disposed at an angle of about 45 DEG to the path of the light refracted by the first mirror and is likewise rotatable 360 DEG about the axis of the refracted path of the light.

Description

The invention relates to a lighting device, in particular to a lighting effect device composed of a light source, a focused light path and a mirror arranged in the light path.

Such lighting devices are known, in particular with regard to the design of light effects, in which a rotating mirror or a plurality of such mirrors are arranged in the beam path of a focused light source. These mirrors may be flat or curved here, and are used to achieve certain lighting effects. It is not possible to use such a device to inject focused light onto a definite space, and it is not possible to do so with conventional devices. For this purpose spotlights are now used, which are mounted on spherical bearings for movement about three axes. The disadvantage of this point spotlight is that its control part is very expensive.

The object of the present invention is to specify a lighting device which directs the focused light of a light source to a defined spatial point and is able to direct the light again to an objective lens which moves the light. Furthermore, the lighting device should be simple, in particular easy to operate and adjustable by means of simple auxiliary devices. According to the solution of the invention this task is achieved by providing a first plane mirror which is at an angle of approximately 45° to the focused light path of the light source and which can be rotated by 360° around an axis lying in the light path, and a second plane mirror , which is also approximately 45° from the now refracted ray path, and can be rotated 360° around the refracted ray path axis.

Instead of the difficult-to-adjust point lights of today, a lighting device is used which refracts the focused light of a light source twice through mirrors whose rotational movements are generally perpendicular to each other. When using a light source that emits light vertically, the light will be refracted to the horizontal direction by the first mirror, so that the light can be adjusted in a horizontal plane. The second mirror refracts the horizontal light by about 90° so that the rotational movement of the mirror now sweeps the light out of a vertical plane. Through the corresponding adjustment of the first mirror and the second mirror, the light can be reflected to any spatial point or the light can be guided to the moving objective lens. The lighting device thus has the particular advantage that the corresponding position of the two mirrors can be adjusted by simple and auxiliary means.

A preferred embodiment of this lighting device is characterized by: a fixed light source with an objective lens arranged in a housing; a 360° rotatable bracket arranged outside the light path for fixing a The plane mirror of ° angle; One is associated with this bracket, and has a certain angle with the current light path, can do 360 ° of rotating support discs, is used for fixing a plane mirror with the current light path about 45 ° angle. This enables the corresponding rotational positions of the bracket and the support plate to be adjusted by adjusting the motors, for example, these motors are controlled by a computer.

Of course, the first mirror can also be fixedly mounted to the light source, and then the light source is rotated together with the mirror. In this case, of course, the arm plate leading onto the second mirror support plate is also connected to the light source or objective. To avoid interfering with shadows, the arm plate passes through the midpoint of the flat mirror. Another possibility is to not use the arm plate at all and to have the second mirror adjusted to run synchronously with the one that rotates the first mirror or the light source via an additional adjustment motor, through this "electric shaft" the second mirror The second mirror precisely tracks the rotational movement of the first mirror.

It is of course also possible to insert means acting on the light between the light path of the objective lens and the second mirror, for example for producing colored effects.

An embodiment of a lighting device according to the invention is schematically depicted in the drawing. Above the light source (1) with the objective lens (2), a plane mirror (5) is mounted in its beam path (3) with a support (4). The plane mirror (5) uses a stepper motor (6) to rotate 360° around an axis parallel to the light (3), as shown by the arrow (7). An arm plate (8) is connected with the bracket (4), and another stepper motor (9) is fixed on the arm plate, which can make a mirror (11) also be 360° through a support plate (10). ° rotation, as shown by arrow (12). The mirror (11) is also positioned at an angle of approximately 45° to the refracted ray (13), so that the ray is refracted by another 90° and proceeds continuously as indicated by reference numeral (14).

By means of adjusting the motor (6) to drive the rotation of the support (4), the refracted light (13) is swept out of a plane perpendicular to the light (3). This causes the light to strike the second mirror (11), so that it is refracted by 90° so that, depending on the position of the mirrors (5, 11), the light reaches each point in space.

Claims (7)

1, lighting device, in particular for lighting effects, it is made up of a light source and focused ray path and the mirror that is provided with in this opticpath, it is characterized in that:

First level crossing (5) that is provided with opticpath (3) angle at 45 approximately, it can do 360 ° of rotations around the axle that is arranged in opticpath (3); And second be about second level crossing (11) that 45 is provided with equally with the opticpath that reflects now (13), and it can do 360 ° of rotations around the axle (13) in fringence path.

2, lighting device according to claim 1 is characterized in that:

A hard-wired light source (1) that has object lens (2) in a shell, a support of doing 360 ° of rotations (4) that is arranged on opticpath (3) top, it is used for the level crossing (5) at installation and opticpath (3) angle at 45 approximately; And one with present opticpath (13) angled and and support (4) interrelate, can make a dish (10) of 360 ° of rotations, be used for fixing a level crossing (11) with present opticpath (13) angle at 45 approximately.

3, lighting device according to claim 1 is characterized in that:

A light source that has object lens (2) (1) of in a shell, installing, a level crossing (5) that is provided with opticpath (3) angle at 45 approximately; And a dish of doing 360 ° of rotations that interrelates with light source, it be used for present opticpath (13) angle at 45 approximately second level crossing (11) is set.

4, according to claim 2 or 3 described lighting devices, it is characterized in that: the arm plate (8) that links two mirrors passes the center of these mirrors.

5, according to the lighting device of above-mentioned one or more claims, it is characterized in that: the corresponding position of rotation of light source (1), support (4) and a dish (10) can be regulated by adjusting motor (6,9).

6, according to the lighting device of above-mentioned one or more claims, it is characterized in that: adjust motor by means of another and make adjustment motor (9) that has a dish (10) and mirror (11) and the adjustment motor (6) that is used for first mirror synchronously around this first mirror (5) rotation.

7, according to the lighting device of above-mentioned one or more claims, it is characterized in that: these adjust motor (6,9) by computer control.

Images