BY PLANAR POSITIONING

The Field Art

The present invention relates to a light configuration that enables illuminating a common area at a given distance by independently directing a plurality of light sources that are positioned in a planar manner for use in the field of lighting, and to the lighting method thereof.

The State of Art

In the existing applications, TIR (total internal reflection) type condensers are typically used. Such condensers, which are designed based on the principle that the light travels from a means to another, are known to reflect 100% of the glowing energy due to the fact that the light strokes the interface of an angle with less optical density. TIR optics or TIR lenses consist of light refraction lenses housed in a reflector and their optical activity is typically above 92% owing to the cone shaped structure thereof. The lens directs the light from the center of the source to the reflector and the reflector reflects the light at a controlled brightness.

Injection molds of TIR (total internal reflection) optics made of polymers are formed as a determined glitter using various surface treatment agents. Nevertheless, injection molding limits lens size and wall thickness (generally up to 0.5 inches). As the optic size increases, the risk of contraction and deviation increases as well. Provision of higher heat and pressure for a longer period reduces such risk; this, however, has a high cost. The disadvantage of these systems is that mechanisms locating each unit at a different angle are required to direct the light in case of using more than one units, and that not only production costs become higher but also their modifications become more difficult.

When it is required to change beam distribution angles, the locations of the components are changed within certain limits, and thus a flexible system can be achieved. It is, however, impossible in TIR (total internal reflection) or reflector systems, and even if it is possible, it impairs the homogeneity and lighting pattern.

According to the Patent Document No. TWI561772 in the state of the art, an asymmetrical light distribution TIR (total internal reflection) lens is adapted to be disposed on a light source. Said TIR (total internal reflection) lens comprises a body, a light incident refraction part, a light reflecting surface and a total reflection surface. The body includes a center axis. The light incident refraction part is located on the bottom of the lens body and is a notch to set on the light source. The light emitting surface is located on the top of the body and has a first surface and a second surface. Said first surface and second surface are connected and not parallel to each other. The total reflection surface is located on the side part of the lens body, wherein the total reflection surface is connected to the light refraction part and the light emitting surface. Said TIR (total internal reflection) performs asymmetrical light distribution. However, said TIR does not have a configuration that can be used flexibly when the beam distribution angles are needed to be changed. Another inherent disadvantage of the said TIR is that additional devices locating each unit at a different angle are required to direct the light in case of using more than one unit.

Another document in the state of the art is the utility model No. TR2012/03321 , wherein a light armatureis disclosed which is developed using the orientability feature of light sources for streets, crossroads, avenues, parks, harbors, airports, and private and public outdoor spaces as well as any similar facility illuminated along a certain route. Said light armature comprises a plurality of light sources (LED modules). The area to be illuminated by each light source is pre-calculated. To that end, the light sources are normally located at a specific angle. In case of making a calculation based on the road width, the distance of the areas to be illuminated with respect to the light armature and the width of the route (road) are taken into account, and then the angle of the lenses to be attached to each light source is determined according to such distances. The light sources can be chosen at different power levels with a view to ensuring a more homogeneous lighting. Thus, it is ensured that a land vehicle can move in convenient visual comfort conditions along a road with uniform light level distribution and luminosity at certain standards. In said document, however, problems are experienced while positioning light beams at desired angles in case of using more than one light source. Unfortunately, the single lens structure used together with the light source fails to ensure that the homogeneity of light beams change when required and that the lighting pattern is preserved without any distortion.

As a result, it has been deemed necessary, in order to overcome the problems in the state of the art, to develop a lighting device such that the orientation angle of light beams is controlled and beam centers are gathered in the same area, and to enable a plurality of light sources located adjacently to illuminate a common area at a given distance by different orientations using a simple mechanical design. Purpose of the Invention

The present invention, inspired by the current situations, aims to overcome the drawbacks mentioned above.

The purpose of the invention is to obtain a light configuration and lighting method, whereby the orientation angle of the light beam is controlled and beam centers are gathered in the same area by shifting the light source in a vertical plane with respect to the lighting axis.

Another purpose of the invention is to provide a light configuration which performs its function without necessitating mechanisms that locate each unit at a different angle to direct the light in case of using more than one unit, which reduces production costs, and which is easy to modify, as well as the lighting method thereof.

The invention also aims to achieve a light configuration and lighting method which prevent the homogeneity of light beams from changing when it is required to change the angle of the light beams and which preserve the lighting pattern without any distortion.

In order to achieve the objects mentioned above, the invention discloses a light configuration for use in the field of lighting, wherein it comprises at least one lighting device that has at least one light source for converting electrical energy into light; at least one light source driver that adjusts the value of the current sent to said light source; at least one first lens for collecting the light coming from said light source and transmitting it to the second lens; and at least one second lens that collects the light coming from the first lens and transmits it to the location to be illuminated.

In order to achieve the objects mentioned above, the invention discloses a lighting method for use in operating rooms, vehicles and equipment in defense industry, performance halls and similar places, wherein it comprises the process steps of moving at least one light source located on at least one offset surface along said offset surface; refracting the light obtained from said light source by means of the first lens and transmitting the same to the second lens; and collecting the light coming from said first lens in the second lens and reflecting it on the lighting surface.

The structural and characteristic features and all advantages of the invention will be understood more clearly by referring to the following figures and the detailed description written with reference to these figures; therefore, these figures and the detailed description should be taken into consideration while making an evaluation. Brief Description of Drawings

Fig. 1 is the schematic view of one of the light sources forming the lighting device.

Fig. 2 is the schematic view showing a 3-light source system in which LED offsets of the lighting device are also provided.

Fig. 3 is the perspective and cross-sectional view of the lighting set.

Fig. 4 is the perspective of a surgical operating light formed by lighting sets.

Reference Numbers

L. Light Configuration

1 . Module

2. Lighting Set

3. Control Panel

10. Light Source Driver

1 1 . Light Source

12. First Lens

13. Second Lens

14. Offset Surface

15. Lighting Axis

20. Lighting Surface

21 . Left-shifted Light Source

22. Central Light Source

23. Right-shifted Light Source

Detailed Description of the Invention

In this detailed description, the preferred embodiments of the invention are described only for a better understanding of the subject matter, without any limitations.

The light configuration (L) according to the invention is formed by combining a plurality of modules (1 ). Said module (1 ) comprises a light source (1 1 ) converting electrical energy into light; at least one light source driver (10) converting the value of the current coming from the power source into optimum current value at which the light source (1 1 ) can operate; at least one first lens (12) for collecting the light coming from said light source (1 1 ) and transmitting it to the second lens (13); and at least one second lens (13) for collecting the light coming from the first lens (12) and transmitting it to the lighting surface (20). It is thus ensured that the orientation angle of light beams is changed by vertically shifting the light source (1 1 ) with respect to the lighting axis (15) and that a plurality of light sources (1 1 ) located at a common plane illuminate a common lighting surface (20) at a certain distance by different orientations.

Lighting surface (20) is at a certain distance from said light source (1 1 ) and it is the surface to which the luminous energy is reflected and which is at the same time illuminated thereby. Disposed between said lighting surface (20) and said light source (1 1 ) is an axis vertical to the lighting surface (20). This axis is referred to as the lighting axis (15).

Light source (1 1 ) is the component which is used for converting electrical energy into light. In the basic embodiment of the invention, LED is used as the light source (1 1 ).

The mentioned first lens (12) and second lens (13) are located on the offset surface (14) in parallel to each other. The lighting pattern can be varied with the changes made in the position of the light source (1 1 ) on the offset surface (14).

In the basic embodiment of the invention, the light beam emitted by the light source (1 1 ) is transmitted to the second lens (13) with the light refraction property of the surface contour of the first lens (12). The second lens (13) collects and transmits the beams that it receives from the first lens (12).

Said first lens (12) and second lens (13) are located in front of the light source (1 1 ); thus, the light is controlled. One of the most important characteristics of said module (1 ) is that the orientation angle of the beam is changed with a slight distortion when the light source (1 1 ) is shifted out of the lighting axis (15) (ex: to left or right). Minimum efficiency loss occurs at this stage.

In the present lighting device (C), the first lens (12) and second lens (13) are connected with one another in terms of technical properties, and so the first lens (12) and second lens (13) cannot be designed independent of each other. What is important at this point is to be able to change the beam direction without distorting the lighting pattern on the lighting surface (20) when the light source (1 1 ) is moved on the offset surface (14) (with respect to the center axis of the corresponding first and second lenses). As a result of the movement of the light source along the offset surface, the light beam can be oriented in a controlled manner.

Fig. 2 shows the views of the left-shifted light source (21 ) and right-shifted light source (23) that are relocated by offsetting (i.e. moving them on the offset surface (14) with respect to the center axis of the corresponding first and second lenses) the central axis of the light source (22). Fig. 2 also illustrates the common lighting area, the lighting surface (20) of which is formed by offsetting.

Said plurality of modules (1 ) are combined in such a way to form the lighting set (2). Fig. 3 shows the perspective view of an exemplary lighting set (2). Said lighting sets (2) are combined such that they will form the light configuration (L). The light configuration (L) may be used in operating rooms, military vehicles and equipment for military purposes, sports and/or performance halls. Fig. 4 illustrates a light configuration (L) intended for use in operating rooms. In this light configuration (L), there are preferably 4 lighting sets (2) and each lighting set (2) is preferably provided with 19 light sources (1 1 ). Furthermore, the light configuration (L) is provided with a control panel (3) for controlling said light configuration (L).