CN201159448Y - lighting equipment - Google Patents

Abstract

The utility model discloses a luminous element for improving the luminous efficiency and simplifying the assembly procedure through providing high brightness and distribution uniformity in the working area, which comprises a body which inner surface represents sphere arch, a plurality of luminous diode moulds which are arranged on the body and are assembled in groups as symmetrical distribution corresponding to the center hoop on the inner surface of the body. In one group, the luminous diode moulds lie at different distances from the body center. The luminous diode moulds in all groups are arranged according to the same pattern. The scale of the sphere radius for forming the inner surface of the body is ranged from 0.8 to 1.2 m. the luminous element also comprises a decoration surface and a transparent cover, for example, which is made of optical polycarbonate and has the same shape as the inner surface of the body. The inner surface of the body and the cover can be realized by the pattern of sphere cross section component.

Description

lighting equipment

technical field

The invention relates to the field of medical technology, in particular to an operating lamp.

Background technique

Existing lighting fixtures comprise a body having a light-emitting unit in the form of a matrix light-emitting diode matrix plate, a transparent cover plate, and a light-diffusing plate (referring to the Russian Utility Model Model RU27852, the International Patent Classification Number IPC as F21V11/00, and the date of publication is 2003 Patent Document of February 20, 2009).

Such existing lighting fixtures are compact since they require a large number of light emitting diodes (LEDs) in order to achieve the required lighting level without sufficient luminous efficiency.

Existing shadowless cold light lighting fixtures comprise a ring with light-emitting elements in the form of a plurality of light-emitting modules and a power supply, wherein each light-emitting module is fixed on a rod mounted on a spherical seam recess on the ring (see Russian The patent number is RU2252441, the International Patent Classification number IPC is G02B21/06, and the publication date is the patent document on May 20, 2005).

A disadvantage of this prior arrangement is the need to adjust the position of each LED module.

The closest technically to the present application is a surgical light comprising a body consisting of a number of independent modules mechanically coupled to each other, wherein the LED modules are fixed on the inner surface of said body (see European application number: EP1568935, International Patent Classification No. IPC is F21S8/00, F21S2/00, and the publication date is the patent document on August 31, 2005).

This existing operating light has the characteristics of high lighting efficiency, but the structure of the operating light is quite complicated.

Contents of the invention

The technical problem solved by the present invention is to simplify the structure of the lighting equipment while retaining its high luminous efficiency. The above purpose is achieved through the following scheme.

According to the claimed invention, the surgical lighting equipment includes a body with a plurality of LED modules fixed on the inner surface, the body of the lighting equipment is made in one piece, its inner surface is made into a spherical bow, and the LED module is divided into at least 4 groups are distributed on the inner surface of the body with respect to the center of the body symmetrically in the ring direction, and the arrangement of the LED modules in each group is the same.

Within each group, the distance of the LED modules from the center of the body is different.

Furthermore, the radius of the sphere forming the inner surface of the body ranges from 0.8 meters to 1.2 meters.

Furthermore, the lighting fixture is provided with a cover plate of the same shape as the lighting fixture body, for example made of optical polycarbonate.

In the claimed lighting fixture, the body is made in one piece and the inner surface is made in a spherical bow shape, which simplifies the structure of the lighting fixture. The LED modules are divided into at least 4 groups, arranged on the inner surface of the body and distributed symmetrically in a circumferential direction relative to the center of the body, and the internal positions of the LED modules in each group are the same, which also simplifies the structure of the lighting equipment, and Ensures uniform illumination of the surgical site. When the LED modules on the inner surface of the lighting equipment body are divided into three groups or less, sufficient lighting cannot be provided during surgery due to shadows. Making the inner surface of the lighting equipment body into a spherical bow can make the luminous flux emitted by a single LED module combined in groups, thereby optimizing the luminous flux.

In each group, the distance from the LED module to the center of the body is different. Each group is distributed on the inner spherical surface of the body. Due to the combination of the luminous flux of all groups, the light distribution inside the working area can be guaranteed to be highly uniform.

Through experiments, it is determined that the radius of the ball on the inner surface of the lighting equipment body ranges from 0.8m to 1.2m, which is optimal for the luminous flux combination of the LED modules, and the modules are combined in groups to ensure the optimal luminous flux at the surgical site. When the radius of the ball is less than 0.8 meters or greater than 1.2 meters, the size of the working area will be reduced and the lighting efficiency of the lighting equipment will be reduced.

For example, the cover plate made of light polycarbonate has the same shape as the inner surface of the lighting equipment body, which is characterized by a high transmission coefficient for visible light, improves lighting efficiency, and eliminates the accumulation of dust on the light source.

The combination of features of the lighting fixture claimed above can simplify the structure of the lighting fixture while maintaining high lighting efficiency.

Description of drawings

Figure 1 is a general diagram of lighting fixtures;

Fig. 2 is a plurality of LED modules installed on the inner surface of the lighting equipment body;

Fig. 3 is a schematic diagram of luminous flux composition of multiple LED modules.

Detailed ways

The lighting equipment includes a body 1 , a bottom cover 2 and a plurality of LED modules 3 . The body of the lighting fixture has an outer decorative surface 4 and an inner surface 5 , wherein groups 6 of LED modules 3 are attached to the inner surface 5 . The number of groups 6 formed by LED modules 3 can range from 4 to 8 according to specific needs.

In the working area 7, the luminous fluxes from the LED modules 3 are combined, and the distance from the working area 7 to the main body 1 is 0.7m to 1.4m, which is the optimal value for surgical lighting equipment.

During the operation of the lighting fixture, the highest illuminance is inside the working area of each group 6 formed by LED modules 3 , and the resulting luminous flux is the combination of the luminous fluxes of the groups 6 in the working area 7 . It is very important for surgical lighting equipment to maintain an almost constant light field diameter in the working area of each group 6. The luminous fluxes emitted by the LED modules 3 belonging to different groups 6 are combined so that The light distribution inside is highly uniform.

The invention can be used in medical technology.

Claims (4)

1, a kind of illuminating equipment, comprise that inner surface is fixed with the body of a plurality of led modules, the body of wherein said illuminating equipment is made one, and the inner surface of described body is made into lune of a sphere, led module be divided at least 4 groups and on the inner surface of this body with respect to the body center and hoop ground is symmetrically distributed, led module is arranged in the same manner in each group.

2, illuminating equipment according to claim 1, wherein in each group, led module is different to the distance at this body center.

3, illuminating equipment according to claim 1, the radius of a ball scope that wherein forms this body is from 0.8 meter to 1.2 meters.

4, illuminating equipment according to claim 1, wherein said illuminating equipment also comprises cover plate, cover plate is made by the light Merlon, has the shape identical with the inner surface of this illuminating equipment body.

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