KR101170249B1 - Nightlight lamp and light having the same - Google Patents

Abstract

Nighttime nightlight lamps and stand-type nighttime nightlights comprising the same are disclosed. The nighttime night lamp includes a base, a circuit board, an optical system, a pattern forming unit, and a housing. The base may be fastened to a socket to which the base of the general incandescent lamp is fastened. The circuit board is electrically connected to a light emitting diode, and an electronic device is mounted to change the external power supplied from the base to a power suitable for the light emitting diode. The optical system is disposed above the light emitting diode, and includes a collimating lens, a focusing lens, and a projection lens. The collimating lens converts light generated and spread from the light emitting diode into parallel light. The focusing lens focuses parallel light generated from the collimating lens. The projection lens projects the focused light onto the ceiling of the bedroom. The pattern forming unit is disposed between the focusing lens and the projection lens to change the light focused at the focusing lens into pattern light. The housing is coupled to the base, and fixes the optical system and the pattern forming unit therein, and includes a pattern light exit port for emitting the pattern light. Therefore, it can be attached to the stand using the existing incandescent lamp, and also various educational effects can be obtained using the pattern image.

Description

NIGHTLIGHT LAMP AND LIGHT HAVING THE SAME}

The present invention relates to a nighttime night light lamp and a nighttime night light including the same, and more particularly, to a nighttime night light lamp using a light emitting diode and a stand type nighttime night light including the same.

In 1993, a blue light emitting diode (Blue LED) was developed by Professor Nakamura Shuji of Japan, enabling the implementation of a light emitting diode device capable of emitting white light, thereby developing a light emitting diode (LED) lamp This can be realized.

Currently, incandescent lamps, fluorescent lamps, light emitting diode lamps and the like are generally used in combination with lighting fixtures as indoor lighting for homes. Incandescent lamps can be manufactured at a relatively low price, can be easily replaced during use, and have the advantage of easy brightness control as a luminaire, but they have been replaced by fluorescent lamps or LED lamps due to their low energy efficiency and short product life. .

Fluorescent lamps or light emitting diode lamps have good energy efficiency for light output, but the manufacturing cost increases because the circuit configuration of the luminaire is complicated to adjust the brightness. In particular, in the case of a light emitting diode lamp, the manufacturing cost is very high, it is not yet widely used.

On the other hand, nighttime lighting fixtures should have no glare when waking before or after bedtime or in the middle of bedtime, but incandescent bulbs or fluorescent lamps have a small light emitting area, causing glare when looking directly at the lamp, and using a lampshade like a stand luminaire. There is only a small area around it, which makes it difficult to work.

In addition, night-time luminaires are widely used as plug-in type sleeping lamps that are used by directly inserting into a stand type or wall socket. In general, the stand type, the general lighting and the night sleeping light is formed together, at this time, the night sleeping light is a direct lighting method, the above-described problem occurs, the plug-in type sleeping lamp is an indirect lighting method There are some that apply, but because the entire bed, such as to buy, there is a problem that the economic burden of consumers increases.

Accordingly, the problem to be solved by the present invention is to provide a nighttime night light lamp that is less glare and can be inserted directly into a conventional incandescent lamp stand.

Another problem to be solved by the present invention is to provide a night type night bed lamp including such a night sleeping lamp.

Nighttime night light lamp according to an embodiment of the present invention includes a base, a circuit board, an optical system, a pattern forming unit and a housing. The base may be fastened to a socket to which the base of the general incandescent lamp is fastened. The circuit board is electrically connected to a light emitting diode, and an electronic device is mounted to apply external power supplied from the base to the light emitting diode. The optical system is disposed above the light emitting diode, and includes a collimating lens, a focusing lens, and a projection lens. The collimating lens converts light generated and spread from the light emitting diode into parallel light. The focusing lens focuses parallel light generated from the collimating lens. The projection lens projects the focused light onto the ceiling of the bedroom. The pattern forming unit is disposed between the focusing lens and the projection lens to change the light focused at the focusing lens into pattern light. The housing is coupled to the base, and fixes the optical system and the pattern forming unit therein, and includes a pattern light exit port for emitting the pattern light.

For example, the optical system may further include a fly's eye lens disposed between the collimating lens and the focusing lens to generate uniform light by mixing the light generated by the light emitting diode.

The nighttime sleeping lamp may further include an optical path changing unit, disposed on the projection lens, to change an optical path of the patterned light to be projected. In this case, the optical path changing means may be any one or a combination of refractive prisms, mirrors or hologram plates.

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Preferably, the housing may be formed to be separated into two parts by male and female coupling so as to replace the pattern forming part.

The pattern forming unit may include a film on which a printed matter is printed and a frame supporting the film.

The nighttime sleeping lamp further includes a photo sensor including at least one of a CDS, a photodiode, and a phototransistor, and forms a transparent window facing the photo sensor in the housing to form a light window according to ambient brightness. You can also adjust automatically.

Nighttime sleeping lamp according to an embodiment of the present invention includes a lamp structure and nighttime sleeping lamp. The lamp structure includes a support, a post extending from the support, and a socket formed on the post, and to which a base of a general incandescent lamp can be fastened. The nighttime night lamp includes a base, a circuit board, an optical system, a pattern forming unit, and a housing. The base may be fastened to a socket to which the base of the general incandescent lamp is fastened. The circuit board is electrically connected to a light emitting diode, and an electronic device is mounted to apply external power supplied from the base to the light emitting diode. The optical system is disposed above the light emitting diode, and includes a collimating lens, a focusing lens, and a projection lens. The collimating lens converts light generated and spread from the light emitting diode into parallel light. The focusing lens focuses parallel light generated from the collimating lens. The projection lens projects the focused light onto the ceiling of the bedroom. The pattern forming portion is disposed between the focusing lens and the projection lens to change the pattern light. The housing is coupled to the base, and fixes the optical system and the pattern forming unit therein, and includes a pattern light exit port for emitting the pattern light.

Such a nighttime night light lamp according to an embodiment of the present invention can be used by attaching to a lamp structure attached to an existing incandescent light, without having to purchase a separate night type nighttime night light, which requires nighttime night light. It can alleviate the economic burden on consumers.

In addition, the glare may be minimized when the light is awakened before, during, or in the middle of the bed by the indirect lighting method reflected by the ceiling of the room.

In addition, the pattern forming unit can project children's favorite patterns on the ceiling of the room, thereby preventing children from being scared at night. Moreover, when using such printed pattern educational prints such as famous paintings, Chinese characters, alphabets of famous artists, the educational effect of children can be expected.

In addition, the housing may be detachably coupled to replace the pattern forming unit, thereby replacing educational prints.

In addition, by using an optical system, the night sleeping lamp lamp can project the printed pattern on the ceiling clearly.

In addition, such an optical system uses a collimating lens, so that the path of light generated by the light emitting diode and spreading out can be irradiated to the housing side by side, thereby minimizing the direct light function that light leaks to the outside through the housing, By improving light utilization efficiency, the printed image can be made clearer.

In addition, the optical system may include a fly's eye lens to generate more uniform light by mixing light generated from the light emitting diodes.

In addition, the circuit board includes a through hole, and a rod-shaped rod lens is inserted into the through hole to generate uniform light by mixing the light generated by the light emitting diode. By arranging the lower portion of the rod lens, the uniform light can be generated and the volume can be reduced by increasing the utilization of space.

In addition, when a night sensor is formed on the night light lamp and a transparent window facing the photo sensor is formed on the housing to automatically adjust the amount of light according to the ambient brightness, the use of the night light lamp is more convenient. It is possible to reduce the power consumption by automatically reducing the amount of light in case of accidentally turning off the power of the nighttime night light in the morning.

1 is a perspective view of a night sleeping light lamp according to an exemplary embodiment of the present invention.
FIG. 2 is a cross-sectional view of the nighttime night lamp shown in FIG. 1.
3 is a cross-sectional view showing a modified embodiment of the night sleeping lamp shown in FIG.
4 is a cross-sectional view of a nighttime night light lamp according to another exemplary embodiment of the present invention.
5 is a cross-sectional view of a nighttime night light lamp according to another exemplary embodiment of the present invention.
FIG. 6 is a schematic diagram for illustrating the function of the light path changing means of FIGS.
7 is a view for explaining a mechanism of changing the optical path when the refractive prism is adopted as the optical path changing means.
8 is a front view illustrating a night sleeping light according to an exemplary embodiment of the present invention.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "having" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and that one or more other features It should be understood that it does not exclude in advance the possibility of the presence or addition of numbers, steps, actions, components, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art.

Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

1 is a perspective view of a night sleeping light lamp according to an exemplary embodiment of the present invention, Figure 2 is a cross-sectional view of the night sleeping light lamp shown in FIG.

1 and 2, the nighttime sleeping lamp 100 according to an exemplary embodiment of the present invention may include a base 110, a circuit board 130, an optical system 150, a pattern forming unit 140, and And housing 120.

The base 110 has the same shape as the base of a general incandescent lamp (not shown). Therefore, it can be fastened to the socket to which the base of the general incandescent lamp is fastened. That is, it can be fastened to the socket of the conventional home incandescent lamp stand. The base 110 transfers external power to the circuit board 130.

The circuit board 130 is electrically connected to the light emitting diode 131, and an electronic device 132 is mounted to change the external power supplied from the base 110 to a power suitable for the light emitting diode 131.

For example, the light emitting diode 131 may be a white, blue, green, or red light emitting diode. The light emitting diode 131 may be directly mounted on the circuit board 130, or may be electrically connected to the circuit board 130 using an electric wire or the like.

On the other hand, since the light emitting diode 131 is driven by a DC power supply having a low voltage and current, it requires an electronic device 132 such as a transformer or an AC / DC converter for dropping an external voltage of 100V or 220V. The electronic devices 132 may be formed on the top surface, the bottom surface, or both the top and bottom surfaces of the circuit board 130.

The optical system 150 is disposed above the light emitting diode 131 to change the light generated by the light emitting diode 131. To this end, the optical system 150 includes a collimating lens 151, a focusing lens 152, and a projection lens 153.

The collimating lens 151 converts the light generated and spread from the light emitting diode 131 into parallel light. In general, the light generated by the light emitting diodes 131 is spread with a specific direction angle. This orientation angle may be adjusted in the packaging process of the light emitting diode 131. The collimating lens 151 may reduce or remove light leaking through the outer wall of the housing 120 by changing the light spreading to parallel light.

If the parallel light spread from the light emitting diode 131 is leaked to the outside through the housing 120, since the light is emitted directly from the lamp like direct lighting, there is a problem such as glare occurs when sleeping or awake in the middle Can be generated. To this end, if the housing 120 itself is formed of a completely opaque material, the above problem, that is, the glare can be prevented, but the light emitted from the light emitting diode 131 and spreading from the wall inside the housing 120 It can be absorbed and the utilization efficiency of light can be reduced.

The focusing lens 152 focuses parallel light generated from the collimating lens 151 toward the projection lens 153. In addition, the projection lens 153 projects the focused light to the ceiling (not shown) of the bedroom.

The pattern forming unit 140 is disposed between the focusing lens 152 and the projection lens 153 to change the light focused at the focusing lens 152 into pattern light. The pattern forming unit 140 prints various types of patterns to project the patterns on the ceiling of the bedroom. For example, the pattern forming unit 140 may be printed a variety of pictures, such as stars, underwater scenery, a scene of various fairy tales in the night sky that children may like, and also world-famous masterpieces, Chinese characters, alphabets, various English words, etc. Prints having an effect may be printed.

These various prints may be made of a film, and the pattern forming unit 140 may be formed by fixing the frame to a frame fixing the outer portion of the film. Alternatively, the pattern forming unit 140 may be manufactured by directly printing a transparent plastic substrate, a glass substrate, or the like.

The housing 120 may be formed of various materials. For example, the housing 120 may be formed of a plastic material. The housing 120 may be manufactured, for example, in a cylindrical shape.

The housing 120 is coupled to the base 110 to form an outline of the night sleeping lamp 100. The optical system 150 and the pattern forming unit 140 are inserted and fixed inside the housing 120. Meanwhile, the circuit board 130 may be inserted into and fixed in the housing 120. Alternatively, the circuit board 130 may be fixed to the base 110.

The housing 120 is formed on an upper portion of the housing 120 and includes a pattern light exit hole 121 for emitting the pattern light. The pattern light exit opening 121 may be formed to be smaller than the diameter of the housing 120. The projection lens 153 is attached to the pattern light exit opening 121.

On the other hand, the night sleeping light lamp 100 may further include a light path changing means 160. The light path changing means 160 changes the path of the light emitted from the pattern light exit opening 121 of the housing 120. The optical path changing means 160 will be described in more detail with reference to FIGS. 6 and 7.

In addition, although not shown, the night sleeping lamp 100 may further include a photosensor (not shown). The photosensor may include at least one of a CDS, a photodiode, a phototransistor. In addition, a transparent window (not shown) facing the photosensor (not shown) may be formed in the housing 120 to automatically adjust the amount of light of the lamp according to the ambient brightness. In this case, the transparent window (not shown) is preferably installed to be adjacent to the lower portion of the circuit board 130, that is, the base 110. As such, when the photo sensor is further provided, the use of the night sleeping light lamp 100 may be more convenient. When the power of the night sleeping light is not accidentally turned off in the morning, the amount of power is automatically reduced. Can be reduced.

According to one embodiment of the present invention, the night sleeping light lamp 100 can be used by attaching to a lamp structure attached to an existing incandescent light, without having to purchase a separate night type night sleeping light, night sleeping light It can alleviate the economic burden on consumers who need it.

In addition, the glare may be minimized when the light is awakened before, during, or in the middle of the bed by the indirect lighting method reflected by the ceiling of the room.

In addition, the pattern forming unit 140 may be used to project children's favorite patterns on the ceiling of the room, thereby preventing children from being scared at night. Moreover, when using such printed pattern educational prints such as famous paintings, Chinese characters, alphabets of famous artists, the educational effect of children can be expected.

In addition, by using the optical system 150, the night sleep lamp lamp 100 can project the printed pattern, such as educational prints clearly on the ceiling.

In addition, the optical system 150 uses the collimating lens 151 so that the path of the light generated and extended from the light emitting diode 131 can be irradiated side by side to the housing 120, so that the light is provided to the housing 120. Through this, the direct lighting function leaked to the outside can be minimized, and the use of light can be improved to make the printed image more clear.

3 is a cross-sectional view showing a modified embodiment of the night sleeping lamp shown in FIG. The night sleeping lamp shown in FIG. 2 is substantially the same except for the night sleeping lamp shown in FIG. 2 and the housing. Accordingly, the same or similar components will be denoted by the same reference numerals and redundant descriptions will be omitted.

Referring to FIG. 3, a nighttime sleeping lamp 100 according to a modified embodiment of FIG. 2 includes a base 110, a circuit board 130, an optical system 150, a pattern forming unit 140, and a housing 120. Include.

The housing 120 is formed of a plurality of pieces, the pieces of the multi-stage may be coupled to each other to be separated. For example, the housing 120 may be separated into two pieces, and the fastening part C for joining the two pieces is formed to be disposed between the focusing lens 152 and the projection lens 153. Can be.

As such, when the fastening part C is formed between the focusing lens 152 and the projection lens 153, it is easy to replace the pattern forming part 140. In other words, when children have demonstrated the stars, underwater scenery, and scenes of various fairy tales in the night sky, or they have already learned enough world-class masterpieces, Chinese characters, alphabets, and various English words, they need new learning materials. When the pattern forming unit 140 has a pattern formed therein, the fastening unit C is formed between the focusing lens 152 and the projection lens 153. ) Can be replaced.

Although not shown, the fastening part C may be formed between the collimating lens 151 and the focusing lens 152. In this case, since the insertion of the lenses becomes easy, the manufacturing process can be made simpler.

4 is a cross-sectional view of a nighttime night light lamp according to another exemplary embodiment of the present invention. The night sleeping lamp illustrated in FIG. 4 is substantially the same except that a fly eye lens is additionally formed in the optical system of the night sleeping lamp illustrated in FIG. 2. Accordingly, the same or similar components will be denoted by the same reference numerals and redundant descriptions will be omitted.

4, the nighttime sleeping lamp 100 according to another exemplary embodiment of the present invention may include a base 110, a circuit board 130, an optical system 150, a pattern forming unit 140, and a housing 120. ).

The optical system 150 includes a collimating lens 151, a fly's eye lens 154, a focusing lens 152, and a projection lens 153.

The fly's eye lens 154 may be formed between the circuit board 130 and the collimating lens 151 and may also be formed between the focusing lens 151 and the projection lens 153. . However, in the present embodiment, the fly's eye lens 154 is disposed between the collimating lens 151 and the focusing lens 152, for example.

As such, when the fly's eye lens 154 is disposed between the collimating lens 151 and the focusing lens 152, the entire area of the fly's eye lens 154 can be used, which is advantageous to color mixing. .

In the case of a white light emitting diode, a white light is generally generated using a blue light emitting diode chip and a phosphor. However, the phosphor may not be uniformly distributed and white light may not be evenly formed. In this case, more uniform white light may be generated by mixing the fly's eye lens 154.

In addition, when the fly's eye lens 154 is employed, the pattern may be more clearly expressed in fine detail.

On the other hand, although not shown, the housing 1200 of the night sleeping light lamp 100 shown in Figure 4 is formed of a plurality of pieces, as shown in Figure 3, the multi-stage pieces to be separated Can be combined with each other.

5 is a cross-sectional view of a nighttime night light lamp according to another exemplary embodiment of the present invention. The nighttime nightlight lamp shown in FIG. 5 is substantially the same except for the nighttime nightlight lamp shown in FIG. 2 and the circuit board. Accordingly, the same or similar components will be denoted by the same reference numerals and redundant descriptions will be omitted.

Referring to FIG. 5, a nighttime sleeping lamp 100 according to another exemplary embodiment of the present invention may include a base 110, a circuit board 130, an optical system 150, a pattern forming unit 140, and a housing 120. ).

The circuit board 130 includes a through hole, and a rod-shaped rod lens 210 is inserted into the through hole to generate uniform light by mixing the light generated by the light emitting diode 131. In addition, the light emitting diode 130 electrically connected to the circuit board 130 is disposed under the circuit board 130, and more specifically, under the rod lens 210.

The light generated by the light emitting diode 131 may be non-uniform, as mentioned above. The non-uniform light is mixed in the rod lens 210 to emit uniform light. In more detail, the light incident on the rod lens 210 is mixed through various total reflections inside, and thus the more uniform light is generated and emitted.

Meanwhile, in FIG. 5, the rod lens 210 is relatively large and the electronic devices 230 are small, but the electronic devices 230 such as a transformer and an AC / DC converter are very large in size. Therefore, although the mounting space in which these are mounted is very large, space utilization can be improved by utilizing the lower surface of the circuit board 230 as a mounting space.

Meanwhile, although not shown, the housing 1200 of the night sleeping lamp 100 shown in FIG. 5 is formed of pieces of a plurality of stages, as shown in FIG. Can be combined with each other.

FIG. 6 is a schematic diagram showing the function of the optical path changing means of FIGS. 2 to 5, and is a view for explaining the mechanism of the optical path changing when the refractive prism is adopted as the optical path changing means of FIG.

Referring to FIG. 6, a night sleeping light 1000 is generally disposed at a corner of a bedroom. Even if it is not a configuration, if placed next to the bed, the pattern image projected on the ceiling cannot be placed on top of the user on the bed.

In order to improve this, as shown in FIGS. 2 to 5, the night sleeping lamp 100 may include a light path changing means 160. The light path changing means 160 is attached to the pattern light exit opening 121 to change the light path so that the pattern image can be irradiated to the upper part of the user. The light path changing means 160 may be disposed above the exit port 121 of the pattern light, or may be disposed below the pattern light exit port 121 inside the housing.

The optical path changing means 160 may be formed using various optical instruments. Specifically, the optical path changing means 160 may be formed of any one or a combination of refractive prisms, mirrors or hologram plates.

For example, when formed of a refractive prism, the refractive prism may have a shape shown in FIG. 7. Hereinafter, the same reference numerals as those of the optical path changing means 160 are written together on the refractive prism.

Referring to FIG. 7, the lower surface I of the refractive prism 160 to which the pattern light is incident may be formed to be inclined with respect to the reference plane R of the bottom, and the refractive prism 160 to which the pattern light is emitted. The upper surface (O) may be formed to be inclined at an angle greater than the lower surface (I) relative to the reference surface (R).

As such, when the lower surface I and the upper surface O are formed, the patterned light is refracted as shown, even though the night sleeping light 1000 is not disposed directly above the user. Can be controlled to be formed.

8 is a front view illustrating a night sleeping light according to an exemplary embodiment of the present invention.

Referring to FIG. 8, a night sleeping lamp 1000 according to an exemplary embodiment of the present invention includes a lamp structure 10 and a night sleeping lamp 100.

As the lamp structure 10, any conventional stand used as an incandescent lamp stand in a general home may be used. For example, the lamp structure 10 is the lamp structure 10 is formed on the support 11, the post 12 extending from the support 11 and the post 12, the base of the general incandescent lamp is fastened And a socket 13 which may be. Through the socket 13, the base 110 of the night sleeping lamp 100 is fastened. On the other hand, the night sleeping lamp 100 may be applied to the night sleeping lamp 100 shown in FIGS.

In the detailed description of the present invention described above with reference to the preferred embodiments of the present invention, those skilled in the art or those skilled in the art having ordinary skill in the art will be described in the claims to be described later And various modifications and variations of the present invention without departing from the scope of the art. Therefore, the above description and the drawings below should be construed as illustrating the present invention, not limiting the technical spirit of the present invention.

1000: night sleep light 10: lamp structure
11: support 12: post
13: socket 100: night sleep lamp
110: base 120: housing
130 and 230 circuit board 131 light emitting diodes
132: electronic device 140: pattern forming portion
150: optical system 151: collimating lens
152: focusing lens 153: projection lens
160: light path changing means 210: rod lens

Claims (9)

A base that can be fastened to a socket to which the base of the general incandescent lamp is fastened;
A circuit board electrically connected to a light emitting diode and mounted with an electronic device for applying external power supplied from the base to the light emitting diode;
A collimating lens disposed on the light emitting diode, the collimating lens for converting the light generated and spread from the light emitting diode into parallel light, a focusing lens for focusing parallel light generated from the collimating lens, and the focused light to the ceiling of the bedroom. An optical system including a projection lens for projecting;
A pattern forming unit disposed between the focusing lens and the projection lens to change the light focused in the focusing lens into pattern light; And
And a housing including a pattern light exit port coupled to the base and fixing the optical system and the pattern forming unit therein and emitting the pattern light. The method of claim 1, wherein the optical system,
And a fly-eye lens disposed between the collimating lens and the focusing lens to mix the light generated by the light emitting diodes. delete The method of claim 1,
And a light path changing means disposed on the projection lens and adapted to change the light path of the patterned light to be projected. The method of claim 4, wherein
The light path changing means is a nighttime sleeping lamp, characterized in that any one or a combination of refractive prism, mirror or hologram plate. The method of claim 1,
To replace the pattern forming portion, the night night light lamp, characterized in that the housing is formed to be separated into two parts by male and female coupling. The method of claim 6,
The pattern forming unit,
Films on which printed matter is printed; And
Nighttime night light lamp comprising a frame for supporting the film. The method of claim 1,
Further comprising a photosensor comprising at least one of a CDS, a photodiode, a phototransistor,
Night light lamp, characterized in that for forming a transparent window facing the photosensor in the housing to automatically adjust the amount of light in accordance with the ambient brightness. A lamp structure including a support, a post extending from the support, and a socket formed on the post and to which a base of a general incandescent lamp can be fastened; And
Including nighttime night light lamps,
The night bed light lamp,
A base engaged with the socket of the lamp structure to receive external power;
A circuit board electrically connected to a light emitting diode and mounted with an electronic device for applying external power supplied from the base to the light emitting diode;
A collimating lens disposed on the light emitting diode, the collimating lens for converting the light generated and spread from the light emitting diode into parallel light, a focusing lens for focusing parallel light generated from the collimating lens, and the focused light to the ceiling of the bedroom. An optical system including a projection lens for projecting;
A pattern forming unit disposed between the focusing lens and the projection lens to change into pattern light; And
And a housing including a pattern light exit hole coupled to the base and fixing the optical system and the pattern forming part therein and emitting the pattern light.

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