CN214619212U - LED lamp - Google Patents

Abstract

The utility model provides a LED lamp, includes lamp shade, LED module, its characterized in that still includes lens, a plurality of archs of integrated into one piece uniformly on the medial surface of lamp shade, every bellied height is 0.2-3mm, and the width is 0.5-6mm, and the interval between the arch is 1-10mm, and the internal surface or the surface of this lamp shade are frosted, set up on the LED module lens, the central line of this lens cross-section perpendicular to the light emitting area of LED module, LED lamp pearl light source of LED module be located the light source cavity of lens, the lamp shade cover including LED module and lens, the main part of lamp shade with the distance of the play plain noodles of lens be 10-50mm, the rated angle of lens is less than 120. The utility model discloses increase LED lamps and lanterns lighting environment comfort level, the illumination effect is pleasing to the eye, reduces the unified glare value (UGR) of LED lamps and lanterns to accord with the international certification requirement.

Description

LED lamp

Technical Field

The utility model relates to a lamps and lanterns, especially a LED lamps and lanterns.

Background

The LED lamp is an appliance capable of generating visible light and distributing and changing light distribution of an internal LED light source, and includes an LED module, all parts and components required for fixing and protecting the LED module, a power supply, and circuit accessories necessary for power supply connection.

The unified glare value (UGR) is a psychological parameter for measuring the subjective reaction of discomfort to human eyes caused by light emitted by a lighting device in an indoor visual environment, and the value of the UGR can be calculated by using the CIE unified glare value formula according to specified calculation conditions.

In the prior art, a lampshade of an LED lamp is generally made of plastic into a light diffusion type or transparent lampshade, and an LED module in the lampshade is not provided with a lens, so that the LED lamp has the defect that the Unified Glare Rating (UGR) is higher and the unified glare rating meets the international certification requirement and is very difficult. The LED lamp with the light diffusion type lampshade can not effectively reduce the Unified Glare Rating (UGR) after the lens is added on the internal LED module, and the light emitting effect of the transparent lampshade is not attractive.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of above-mentioned current LED lamps and lanterns, the utility model provides a LED lamps and lanterns, this LED lamps and lanterns not only increase LED lamps and lanterns lighting environment comfort level, and the illumination effect is pleasing to the eye, has reduced the degree of difficulty that the unified dizzy light value (UGR) of LED lamps and lanterns accords with international relevant certification standard requirement moreover.

The technical solution of the utility model is as follows:

the utility model provides a LED lamp, includes lamp shade, LED module, its characterized in that, still includes lens, the medial surface of lamp shade on a plurality of archs of integrated into one piece uniformly, every bellied height is 0.2-3mm, the width is 0.5-6mm, the interval between the arch is 1-10mm, the internal surface or the surface of this lamp shade are frosted, the LED module on set up lens, the central line perpendicular to of this lens cross-section the light emitting area of LED module, the LED lamp pearl light source of LED module be located the light source cavity of lens, the lamp shade with LED module and lens cover including, the main part of lamp shade with the distance of the play plain noodles of lens be 10-50mm, the rated angle of lens be less than 120.

The lampshade is a plane or a cambered surface.

The utility model aims to reduce the measured value of the luminance of every luminous portion of lamps and lanterns of L-observer orientation in the unified glare value (UGR) computational formula through reducing the luminous angle of LED lamps and lanterns, and then reduce the unified glare value (UGR) of LED lamps and lanterns. The unified glare value (UGR) is calculated as follows:

in the formula: l is_b-background luminance, cd/m²；

L-luminance of light-emitting portion of each lamp in the direction of observer, cd/m²；

ω -the solid angle formed by the light emitting portion of each luminaire to the observer's eye, sr;

p-position index for each individual luminaire.

The utility model discloses the concrete principle is as follows: the light emitted by the LED module reduces the light emitting angle through the lens. Because the luminous angle of conventional LED module is 120, so the utility model discloses select the rated angle of LED lens for use to be less than 120, just can effectively reduce the luminous angle of lamps and lanterns, and then the measured value L of the luminous luminance of every lamps and lanterns of observer direction can diminish.

The technical effects of the utility model are as follows:

the light diffusion type lampshade made of plastic used by the existing LED lamp is serious in light diffusion of the LED lamp, and the reduction of the light emitting angle of the lamp by the lens is influenced. Due to the lack of light refraction, the transparent lampshade is not attractive in light emitting effect after the lens is added inside the transparent lampshade. The utility model discloses a lamp shade that internal surface or surface are dull polish effect, lamp shade main part and lens go out the plain noodles distance 10-50mm, relatively reduce the diffusion of LED light. The inner side surface of the lampshade is uniformly and integrally formed with bulges, the height of each bulge is 0.2-3mm, the width of each bulge is 0.5-6mm, and the interval between every two bulges is 1-10mm, so that the light emitting angle of an LED is not influenced, the refracted light is increased, the light is refracted onto a frosted surface, and the purpose of reducing the unified glare value (UGR) of the LED lamp without reducing the light emitting attractiveness of the LED is achieved by matching with the lens.

The utility model discloses increased LED lamps and lanterns lighting environment comfort level, the illumination effect is pleasing to the eye, reduces the unified glare value (UGR) of LED lamps and lanterns to accord with the international certification requirement.

Drawings

FIG. 1 is a schematic view of a lamp;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of the lampshade B of the utility model shown in FIG. 2

FIG. 4 is luminosity data of a conventional LED lamp test

FIG. 5 shows the unified glare value of the same LED lamp according to the data of FIG. 4 under various standard conditions

FIG. 6 is the luminosity data of the lamp of FIG. 4 data tested after the implementation of the present invention has been modified

Fig. 7 shows the unified glare values of the same LED lamp in fig. 6 under various standard conditions, which are calculated according to the test data.

Detailed Description

The present invention will be further described with reference to the following examples and drawings, but the scope of the present invention should not be limited thereto.

Fig. 1, fig. 2 and fig. 3 are seen from the drawings, the utility model discloses a LED lamp, including lamp shade 1, LED module 3, drain pan 5 and lens 2 in addition, the lamp shade sees through metal fastener 6 and installs on the drain pan, and the LED module includes LED lamp pearl light source, circuit board and support circuit board's metal sheet. The power supply and the circuit connecting accessories required for lighting the LED module are arranged in the bottom shell. The LED lamp shade is characterized in that a plurality of bulges 4 are uniformly and integrally formed on the inner side surface of the lamp shade 1, the height of each bulge is 0.2-3mm, the width of each bulge is 0.5-6mm, the interval between every two bulges is 1-10mm, the inner surface or the outer surface of the lamp shade 1 is a frosted surface, the lens 2 is arranged on the LED module 3, the central line of the section of the lens 2 is perpendicular to the light emitting surface of the LED module 3, the LED lamp bead light source of the LED module 3 is positioned in the light source cavity of the lens 2, the lamp shade 1 covers the LED module 3 and the lens 2, the distance between the main body of the lamp shade 1 and the light emitting surface of the lens 2 is 10-50mm, and the rated angle of the lens 2 is smaller than 120 degrees.

The lampshade 1 of the embodiment is a cambered surface.

Fig. 4 shows photometric test data of a conventional LED lamp and a unified glare value of the lamp under various standard conditions calculated according to the test data as shown in fig. 5.

Fig. 6 shows the same lamp as fig. 4 and fig. 5, and the luminosity test data obtained after modification according to the embodiment of the present invention and the unified glare value of the lamp under various standard conditions calculated according to the test data are shown in fig. 7. Before and after the lamps are reformed, except the parts related to the embodiment, the overall dimensions of other parts and the lamps are not changed.

Fig. 4 compares the data in fig. 6, and illustrates that after the implementation measures of the present invention are taken, the luminosity data changes and the lighting angle (average beam angle) decreases.

Note: the average beam angle in the photometric data is equivalent to the above-mentioned lighting angle.

The data of fig. 5 and fig. 7 are compared, and after the implementation measures of the present invention are taken, the unified glare value of the LED lamp under various standard conditions is reduced. For example: the reflection ratios of the ceiling, the wall and the working face are respectively 0.7, 0.5 and 0.2, and the room size x is 4H y and 8H. Before the implementation measures of the utility model are not taken, the unified glare value of the lamps is 23.6 (crossing) and 19.8 (forward). After the implementation measures of the utility model are taken, the unified glare value of the lamp is 21.1 (crossing) and 18.7 (forward). The unified glare value of the lamp is respectively reduced by 2.5 and 1.1, which shows that the utility model is effective.

Herein, X: space length, y: the space width H is the distance from the eye position of an observer to the installation position of the lamp, and the intersection is as follows: forward perpendicular to the viewer's gaze direction: parallel to the direction of the viewer's gaze.

The experiment shows, the utility model discloses increased LED lamps and lanterns lighting environment comfort level, the illumination effect is pleasing to the eye, reduces the unified dizzy light value (UGR) of LED lamps and lanterns to accord with the international certification requirement.

Claims (3)

1. The utility model provides a LED lamp, includes lamp shade (1) and LED module (3), its characterized in that, still includes lens (2), lamp shade (1) with LED module (3) and lens (2) cover including, the internal surface of lamp shade (1) on a plurality of archs (4) of integrated into one piece uniformly, the internal surface or the surface of this lamp shade (1) are frosting, set up on LED module (3) lens (2), the central line perpendicular to of this lens (2) cross-section the light emitting area of LED module (3), the LED lamp pearl light source of LED module (3) be located the light source intracavity of lens (2), the main part of lamp shade (1) with the distance of the play plain noodles of lens (2) be 10-50mm, the rated angle of lens (2) be less than 120.

2. The LED lamp as claimed in claim 1, wherein the protrusions (4) have a height of 0.2-3mm and a width of 0.5-6mm, and the distance between the protrusions (4) is 1-10 mm.

3. The LED lamp according to claim 1, wherein the lampshade (1) is a plane or a cambered surface.

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