Lighting device

Abstract

The utility model belongs to the technical field of lighting equipment, and particularly relates to a lighting device. The lighting device comprises a first lighting unit, a second lighting unit and a third lighting unit; the first lighting unit, the second lighting unit and the third lighting unit are arranged in a circumferential array around the center of the lighting device; the first lighting unit is arranged on the inner ring, the second lighting unit and the third lighting unit are arranged on the outer ring, and the second lighting unit and the third lighting unit are arranged in a spaced mode. The number of the first lighting units, the second lighting units and the third lighting units is larger than or equal to 4. According to the utility model, the processing cost and the production process can be effectively reduced, meanwhile, great convenience is brought to use, and the switching of two lighting modes can be realized without replacing the lighting device.

Description

Technical Field

[0001] This utility model belongs to the field of lighting equipment technology, specifically a lighting device. Background Technology

[0002] Existing examination lights and dental lights are mostly single-function, meaning they can only be used as either examination lights or dental lights. Examination lights use a circular, uniform light spot for wound examination in the examination room; while dental lights use an elliptical / rectangular light source for oral surgery and examinations. The standards for dental lights and examination lights differ. The most obvious difference is in the shape and parameters of the light spot. In terms of compliance with standards, the light spot of an examination light does not meet the requirements for use as a dental light. Therefore, the two types of lighting devices are generally independent devices and cannot be used interchangeably. Utility Model Content

[0003] The purpose of this utility model is to provide a lighting device that combines an examination lamp and an oral lamp, so that it can function as both an examination lamp and an oral lamp. This can effectively reduce processing costs and production processes, and at the same time, it can greatly facilitate use, allowing switching between the two lighting modes without changing the lighting device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A lighting device includes a first lighting unit, a second lighting unit, and a third lighting unit; the first lighting unit, the second lighting unit, and the third lighting unit are arranged in a circular array around the center of the lighting device; the first lighting unit is arranged in an inner ring, and the second lighting unit and the third lighting unit are arranged in an outer ring, with the second lighting unit and the third lighting unit spaced apart; preferably, the spacing is set to be spaced apart on the same circumference.

[0006] The number of the first lighting unit, the second lighting unit, and the third lighting unit is ≥4.

[0007] Preferably, one to three second lighting units are arranged between any two of the third lighting units.

[0008] Preferably, the optical axis of the first illumination unit coincides with the central axis of the illumination device on the light receiving surface; the optical axis of the second illumination unit coincides with the central axis of the illumination device on a surface at a certain position below the light receiving surface; and the light field distribution curves of the first illumination unit and the second illumination unit overlap.

[0009] Preferably, the first and second lighting units serve as inspection lamps, and the third lighting unit serves as an oral lamp.

[0010] Preferably, the LED current value supplied to the first lighting unit is greater than or equal to 30% of the LED current value supplied to the second lighting unit.

[0011] Preferably, the optical axis of the third lighting unit coincides with the central axis of the lighting device on the light receiving surface.

[0012] This invention combines two types of lighting units into one lighting device, which greatly reduces the manufacturing process and processing burden, and also greatly facilitates use, allowing switching between the two lighting modes without replacing the lighting device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the lighting device of this utility model;

[0014] Figure 2 This is a schematic diagram of the optical axis of the lighting device of this utility model;

[0015] Figure 3 This is a light field distribution curve of the inspection lamp of this utility model;

[0016] Figure 4 This is the light spot diagram of the inspection lamp of this utility model;

[0017] Figure 5 This is a light spot diagram of the present invention as an oral lamp;

[0018] Figure 6 This is a diagram showing the size of the light spot of the oral lamp in this utility model;

[0019] Reference numerals: 1. First lighting unit; 2. Second lighting unit; 3. Third lighting unit. Detailed Implementation

[0020] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0021] Example 1

[0022] like Figure 1 As shown, a lighting device includes a first lighting unit 1, a second lighting unit 2, and a third lighting unit 3; the first lighting unit 1, the second lighting unit 2, and the third lighting unit 3 are arranged in a circular array around the center of the lighting device; the first lighting unit 1 is arranged in the inner ring, the second lighting unit 2 and the third lighting unit 3 are arranged in the outer ring, and the second lighting unit 2 and the third lighting unit 3 are spaced apart.

[0023] The number of first lighting units 1 is 8, the number of second lighting units 2 is 12, and the number of third lighting units 3 is 4.

[0024] Three second lighting units 2 are arranged between any two of the third lighting units 3.

[0025] The number of lighting units in the lighting device is only one of the possibilities. As long as the lighting units are arranged in a circular array around the center of the lighting device, the number of lighting units can be a natural number (natural number ≥ 4).

[0026] like Figure 2 As shown, the optical axis of the first illumination unit 1 coincides with the central axis of the illumination device on the light-receiving surface; the optical axis of the second illumination unit 2 coincides with the central axis of the illumination device at a certain position below the light-receiving surface; the light field distribution curves of the first illumination unit 1 and the second illumination unit 2 overlap, as shown. Figure 3 As shown.

[0027] The first lighting unit 1 and the second lighting unit 2 serve as inspection lights, and the third lighting unit 3 serves as an oral cavity light.

[0028] The current value supplied to the LED beads of the first lighting unit 1 is greater than or equal to 30% of the current value supplied to the LED beads of the second lighting unit 2.

[0029] The optical axis of the third lighting unit 3 coincides with the central axis of the lighting device on the light receiving surface.

[0030] This invention enables a lighting device to function as both an examination light and an oral cavity light.

[0031] The first illumination unit 1 and the second illumination unit 2 are used as inspection lamps, and their light spot shapes are as follows: Figure 4 As shown; the third lighting unit 3 is used as an oral lamp lighting device, and the optical axis of the third lighting device coincides with the central axis of the lighting device on the light receiving surface, forming Figure 5 The shape of the light spot, and its size as follows: Figure 6 As shown, the size of this light spot meets the requirements of the oral lamp standard.

[0032] When the first lighting unit 1 and the second lighting unit 2 are used as the examination light illumination device, the third lighting unit 3, which is used as the oral lamp illumination device, is not used; conversely, when the third lighting unit 3 is used as the oral lamp illumination device, the first lighting unit 1 and the second lighting unit 2, which are used as the examination light illumination device, are not used. This allows for switching between the examination light illumination device and the oral lamp illumination device, enabling it to be used as both an examination light and an oral lamp.

[0033] For any content not described in detail in this utility model, conventional technical knowledge in the field can be used.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lighting device, characterized in that, The lighting device includes a first lighting unit, a second lighting unit, and a third lighting unit; the first lighting unit, the second lighting unit, and the third lighting unit are arranged in a circular array around the center of the lighting device; the first lighting unit is arranged in the inner ring, and the second lighting unit and the third lighting unit are arranged in the outer ring, with the second lighting unit and the third lighting unit spaced apart. The number of the first lighting unit, the second lighting unit, and the third lighting unit is ≥4.

2. The lighting device according to claim 1, characterized in that, One to three second lighting units are arranged between any two of the third lighting units.

3. The lighting device according to claim 1, characterized in that, The optical axis of the first illumination unit coincides with the central axis of the illumination device on the light receiving surface; the optical axis of the second illumination unit coincides with the central axis of the illumination device on a surface at a certain position below the light receiving surface; the light field distribution curve of the first illumination unit overlaps with the light field distribution curve of the second illumination unit.

4. The lighting device according to claim 1, characterized in that, The first and second lighting units serve as inspection lights, and the third lighting unit serves as an oral cavity light.

5. The lighting device according to claim 1, characterized in that, The current value of the LED beads supplied to the first lighting unit is greater than or equal to 30% of the current value of the LED beads supplied to the second lighting unit.

6. The lighting device according to claim 1, characterized in that, The optical axis of the third lighting unit coincides with the central axis of the lighting device on the light receiving surface.

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