JP2015115146A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device improved in designability at the time of light emission, while securing an illumination efficiency of a light emitting part to environment at the time of light emission.SOLUTION: The lighting device includes: an all-night light LED 21, a mask 22, a projection lens 25, and a case 26. The all-night light LED 21 emits light. The mask 22 is set to the all-night light LED 21 at a side where the light from the all-night light LED 21 is applied, so as to separate from the all-night light LED 21, and the irradiation light from the all-night light LED 21 is transmitted to project a picture 35. The projection lens 25 is set to the mask 22 at a side where the irradiation light from the all-night light LED 21 is transmitted, and projects the light transmitted through the mask 22. The case 26 stores the all-night light LED 21, the mask 22 and the projection lens 25, and transmits at least part of the light of the lights emitted at the all-night light LED 21 to the outside through a space between the all-night light LED 21 and the mask 22.

Description

  Embodiments described herein relate generally to a lighting device.

  Many of the so-called ceiling lights, which are directly attached to the ceiling ceiling of a residential room, are light sources that are turned on when the ceiling light is used, as well as a small amount of light to avoid darkness while sleeping. It has a night light that keeps on.

Japanese Patent Application Laid-Open No. 2012-4006

  Here, in the lighting device, the light from the light emitting unit is not only used to brightly illuminate the surroundings, but the light from the light emitting unit is transmitted to a mask-like member on which a picture or character is displayed. In some cases, a pattern or a character is projected by irradiating other members with the transmitted light. However, when a pattern or the like is projected in this way, most of the light emitted from the light emitting unit is used for projecting the pattern, so it is difficult to brighten the surroundings with the light emitting unit. In particular, nightlights are lit with a small amount of light that avoids darkness, and since the amount of light is originally low, the amount of light used to illuminate the surroundings is reduced when a design or the like is projected in consideration of design. . As described above, it has been very difficult to achieve both the design at the time of light emission of the light emitting unit and the irradiation of the light from the light emitting unit with a desired light amount.

  The present invention has been made in view of the above, and an object of the present invention is to provide an illuminating device that can improve the designability at the time of light emission while ensuring the irradiation efficiency to the surroundings at the time of light emission of the light emitting unit. And

  The illumination device according to the embodiment includes a light emitting unit, a mask, a projection lens, and a case. The light emitting unit emits light. The mask is disposed away from the light emitting unit on the light emitting unit on the side irradiated with light from the light emitting unit, and projects a pattern by transmitting the irradiation light from the light emitting unit. The projection lens is disposed on the side through which the irradiation light from the light emitting unit is transmitted with respect to the mask, and projects the light transmitted through the mask. The case houses the light emitting unit, the mask, and the projection lens, and transmits at least part of the light emitted from the light emitting unit to between the light emitting unit and the mask.

  ADVANTAGE OF THE INVENTION According to this invention, the design property at the time of light emission can be improved, ensuring the irradiation efficiency to the circumference | surroundings at the time of light emission of a light emission part.

FIG. 1 is a plan view showing the configuration of the illumination device according to the embodiment. FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 3 is a perspective view of FIG. FIG. 4 is a perspective view of the shade shown in FIG. FIG. 5 is a detailed view of part B of FIG. FIG. 6 is an explanatory diagram when the night light shown in FIG. 2 is turned on. FIG. 7 is an explanatory diagram showing a state in which a picture is imaged with a shade when the nightlight is turned on. FIG. 8 is a modified example of the illumination device according to the embodiment, and is an explanatory view showing a state in which the light distribution adjustment lens is provided in the nightlight.

  The illuminating device 1 according to the embodiment described below includes a nightlight LED 21, a mask 22, a projection lens 25, and a case 26. The nightlight LED 21 emits light. The mask 22 is disposed away from the night light LED 21 on the side irradiated with the light from the night light LED 21 and projects the pattern 35 when the irradiation light from the night light LED 21 is transmitted. The projection lens 25 is disposed on the side where the irradiation light from the night light LED 21 is transmitted with respect to the mask 22, and projects the light transmitted through the mask 22. The case 26 houses the nightlight LED 21, the mask 22, and the projection lens 25, and transmits at least part of the light emitted from the nightlight LED 21 to the outside from between the nightlight LED 21 and the mask 22.

  Moreover, the illuminating device 1 which concerns on embodiment described below comprises the shade 15 by which the pattern 35 is projected when the light which emitted light by the nightlight LED21 and permeate | transmitted the mask 22 is irradiated from the projection lens 25. FIG.

  Further, in the illumination device 1 according to the embodiment described below, the shade 15 is made of a translucent member, and the pattern 35 by the light emitted from the projection lens 25 forms an image on the shade 15, and the projection lens in the shade 15. 25 is also displayed on the surface opposite to the surface irradiated with light.

  Moreover, in the illuminating device 1 which concerns on embodiment described below, nightlight LED21 is used as a light source of the nightlight 20. FIG.

Embodiment
Next, the illuminating device which concerns on embodiment is demonstrated based on drawing. FIG. 1 is a plan view showing the configuration of the illumination device according to the embodiment. FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 3 is a perspective view of FIG. The illuminating device 1 shown to the figure is comprised as a ceiling light installed in the ceiling of a room. The illuminating device 1 has a main body portion 2 formed in a substantially disc shape, and the main body portion 2 is a hole used when the illuminating device 1 is attached to the ceiling near a circular central portion. An instrument mounting hole 3 is formed. A circuit board 7 for controlling the current used in the lighting device 1 is disposed around the fixture mounting hole 3.

  Moreover, the illuminating device 1 is equipped with many LED (Light Emitting Diode) 10 as a light source in the one surface side of a disc. The plurality of LEDs 10 are formed in a ring shape, and are arranged in an inner LED substrate 11 that is disposed so as to surround the circuit board 7, and are formed in a ring shape having a larger diameter than the inner LED substrate 11, and surround the inner LED substrate 11. It is provided on the outer LED substrate 12 to be disposed.

  For example, the large number of LEDs 10 provided on the inner LED substrate 11 are all the same distance from the center of the main body 2 formed in a disk shape, and the circumferential intervals around the center of the main body 2 are the same. They are arranged at equal intervals. Similarly, a large number of LEDs 10 provided on the outer LED substrate 12 have the same distance from the center of the main body 2 formed in a disc shape, and are spaced in the circumferential direction centered on the center of the main body 2. Are arranged at equal intervals. That is, the shape of the inner LED board 11 and the outer LED board 12, the arrangement state of the many LEDs 10 provided on the inner LED board 11, and the arrangement state of the many LEDs 10 provided on the outer LED board 12 are all diameters. Are different concentric circles.

  Further, the circuit board 7 is provided with an LED drive circuit 8 for controlling the drive of these LEDs 10. The LED drive circuit 8 can drive the LED 10 on the inner LED board 11 and the LED 10 on the outer LED board 12 independently of each other. That is, the LED drive circuit 8 can independently perform the lighting control of the LED 10 of the inner LED board 11 and the lighting control of the LED 10 of the outer LED board 12 according to the input signal to the LED driving circuit 8. It is possible.

  A signal corresponding to the operation is input to the LED drive circuit 8 when the user operates an operation device (not shown) such as a switch provided on the wall of the room where the lighting device 1 is installed. The The LED drive circuit 8 thus operates according to the signal from the operation device, and drives the LED 10 according to the operation of the operation device, whereby the LED 10 of the inner LED substrate 11 and the LED 10 of the outer LED substrate 12 are turned on. Can be controlled.

  FIG. 4 is a perspective view of the shade shown in FIG. A shade 15 is provided on the side of the main body 2 where the LED 10 is disposed. The seed 15 is made of a resin material or the like, and is formed in a semitransparent dome shape. That is, the shade 15 has a circular shape having a diameter that is approximately the same as the diameter of the main body 2 in plan view, and the distance from the main body 2 in the circular axial direction at a position near the outer periphery of the main body 2. Is small, and the distance from the main body 2 in the axial direction increases as it goes toward the center of the main body 2.

  The shade 15 formed in this way is formed with a shade-side fitting portion 18 that is fitted to the main body portion 2 on the inner surface 16 side in the outer peripheral portion, and the main body portion 2 has the shade 15 on the outer peripheral portion. The main body part side fitting part 4 is formed. The shade 15 is attached to the main body portion 2 by fitting the shade side fitting portion 18 to the main body portion side fitting portion 4. For this reason, the sade 15 has a dome-shaped inner surface 16 that is the shape of the sade 15 facing the side where the main body 2 is located, and the outer surface 17 faces the opposite side of the side where the main body 2 is located, The outer surface of the illuminating device 1 is comprised.

  Further, an all-night lamp 20 that is an illumination unit is disposed on the circuit board 7. This night-light 20 is arrange | positioned in the same surface as the surface where LED10 in the disk-shaped main-body part 2 is arrange | positioned. That is, the large number of LEDs 10 and nightlight 20 are all arranged in a space defined by the main body 2 and the shade 15. Similarly to the LEDs 10 provided on the inner LED board 11 and the outer LED board 12, the night light 20 is also driven and controlled by the LED drive circuit 8 and is lit according to the operation of the operating device.

  FIG. 5 is a detailed view of part B of FIG. The night light 20 includes a night light LED 21 that is a light emitting unit that emits light, and the night light LED 21 emits light to be turned on. That is, the nightlight LED 21 is used as a light source of the nightlight 20. The night light LED 21 is desirably an LED having a narrow directivity angle. The LED having a narrow directivity angle here has a full width at half maximum of 60 ° or less, preferably 30 ° or less. The nightlight 20 includes a mask 35 that projects a pattern 35 (see FIG. 7) and characters by transmitting light emitted from the nightlight LED 21, and a projection lens 25 that projects light transmitted through the mask 22. Yes. The mask 22 and the projection lens 25 are held by a case 26 formed in a substantially cylindrical shape.

  Specifically, the case 26 has one end of the case 26 connected to the circuit board 7 so that the night-light LED 21 disposed on the circuit board 7 is positioned in the cylindrical shape. That is, the case 26 is disposed in a space defined by the main body 2 and the shade 15 in a state in which one end of the cylindrical shape is positioned around the night light LED 21 and the night light LED 21 is accommodated.

  The mask 22 is formed in a disk-like shape having an outer diameter that is approximately the same as the inner diameter of the case 26, and is formed of a transparent member so as to transmit light, And a light shielding portion 24 that is a portion that blocks light and does not transmit light. The shape of the boundary portion between the light transmitting portion 23 and the light shielding portion 24 is formed in an arbitrary pattern shape. For this mask 22, for example, a black and white positive film can be used. In this case, the transparent portion of the film becomes the light transmitting portion 23 and the black portion becomes the light shielding portion 24.

  The case 26 has a mask holding portion 27 that holds the mask 22 in the vicinity of the middle in the cylindrical axial direction on the inner peripheral surface. The disc-shaped mask 22 is held in the case 26 by being positioned in the case 26 in an orientation in which the axis coincides with the axis of the case 26, and the outer peripheral portion engages with the mask holding part 27. . At that time, since the mask 22 is held by a mask holding portion 27 formed near the middle in the axial direction of the case 26, the mask 22 is separated from the nightlight LED 21 on the side irradiated with light from the nightlight LED 21 with respect to the nightlight LED 21. Then, it is disposed in the case 26.

  The projection lens 25 is formed of a lens whose outer diameter is approximately the same as the inner diameter of the case 26. The case 26 has a lens holding portion 28 that holds the projection lens 25 at the end opposite to the end connected to the circuit board 7. The projection lens 25 is positioned on the lens holding portion 28 side so as to close the end portion of the case 26 on the lens holding portion 28 side so that the axis of the lens coincides with the axis of the case 26, and the outer peripheral portion holds the lens. By being engaged with the portion 28, the case 26 is held. Thereby, the projection lens 25 is disposed away from the mask 22 on the side opposite to the side where the nightlight LED 21 is located when viewed from the mask 22. That is, the projection lens 25 is located at the nightlight LED 21 with respect to the mask 22. It is arrange | positioned at the side which the irradiation light from transmits.

  As described above, the case 26 houses the nightlight LED 21, the mask 22, and the projection lens 25, and the nightlight LED 21 and the mask 22, and the mask 22 and the projection lens 25 are placed in a desired positional relationship. keeping. The case 26 is formed of a transparent member and has translucency. That is, light can pass through the case 26 in the portion between the nightlight LED 21 and the mask 22 in the case 26 and the portion between the mask 22 and the projection lens 25 in the case 26.

  The lighting device 1 according to this embodiment is configured as described above, and the operation thereof will be described below. The lighting device 1 switches the lighting state of the lighting device 1 by operating an operating device (not shown). For example, when the lighting device 1 is turned on with the maximum light amount, an operation of turning on the operation device with the maximum light amount is performed. Thereby, the LED drive circuit 8 causes both the LED 10 provided on the inner LED substrate 11 and the LED 10 provided on the outer LED substrate 12 to emit light.

  Irradiation light from the LED 10 travels toward the shade 15 facing the LED 10. Since the shade 15 is formed of a translucent member, the light that has reached the shade 15 from the inner surface 16 side of the shade 15 passes through the shade 15 while being scattered, and exits from the outer surface 17 of the shade 15. The shade 15 irradiates light from the entire shade 15 by transmitting the light while scattering the light in this way, and the illuminating device 1 illuminates the surroundings by this irradiated light.

  When the lighting device 1 is turned on with the light amount reduced, the operation device is turned on with a weak light amount. Accordingly, the LED drive circuit 8 turns off either the LED 10 provided on the inner LED board 11 or the LED 10 provided on the outer LED board 12 and causes only the other LED 10 to emit light. For example, the LED 10 provided on the inner LED substrate 11 is turned off, and only the LED 10 provided on the outer LED substrate 12 is caused to emit light.

  Thereby, the irradiation light from LED10 of the outer side LED board 12 goes to the shade 15 with a small light quantity compared with the case where both LED10 of the inner side LED board 11 and LED10 of the outer side LED board 12 are light-emitted. The shade 15 scatters this light and transmits it to irradiate a small amount of light from the entire shade 15, and the lighting device 1 illuminates the surroundings with this small amount of irradiating light.

  Further, when the night light 20 is turned on, the operation device is operated to turn on the night light 20. Thereby, the LED drive circuit 8 turns off both the LED 10 of the inner LED board 11 and the LED 10 of the outer LED board 12, and causes the nightlight LED 21 of the nightlight 20 to emit light.

  FIG. 6 is an explanatory diagram when the night light shown in FIG. 2 is turned on. When the nightlight LED 21 emits light, part of the light emitted from the nightlight LED 21 is irradiated to the mask 22 disposed on the side irradiated with the light from the nightlight LED 21. At that time, since the night light LED 21 has a narrow directivity angle, the mask 22 is irradiated with light close to parallel light. Since the mask 22 includes the light transmitting portion 23 and the light shielding portion 24, the light directed to the light shielding portion 24 among the light irradiated to the mask 22 is blocked by the light shielding portion 24, and is transmitted to the light transmitting portion 23. The directed light is transmitted through the translucent portion 23. Here, since the shape of the boundary portion between the light transmitting portion 23 and the light shielding portion 24 is formed in an arbitrary pattern shape, the light transmitted through the light transmitting portion 23 is seen in the axial direction of the mask 22. The shape in the case is transmitted in the shape of this pattern.

  The light transmitted through the light transmitting portion 23 of the mask 22 is directed to the projection lens 25 located on the opposite side of the mask 22 from the side where the nightlight LED 21 is located. The projection lens 25 emits light incident from the mask 22 side from the side opposite to the side where the mask 22 is located while refracting the light in the enlargement direction.

  The light emitted from the projection lens 25 is the projection light 31 that is light formed in the shape of the translucent portion 23 of the mask 22. Since the opposite surface of the projection lens 25 to the side on which the mask 22 is located faces the inner surface 16 of the shade 15, the projection light 31 emitted from the projection lens 25 is applied to the inner surface 16 of the shade 15 by the projection lens 25. Projected.

  FIG. 7 is an explanatory diagram showing a state in which a picture is imaged with a shade when the nightlight is turned on. Since the shade 15 is formed to be translucent, when the projection light 31 is projected onto the shade 15, the portion of the shade 15 irradiated with the projection light 31 transmits the light transmitting portion 23 of the mask 22. With the shape of the pattern 35 formed by the above, light is scattered and the shade 15 shines. In other words, since the projection lens 25 emits the light incident from the mask 22 side while refracting it in the direction of expanding, the light transmitted through the light transmitting portion 23 of the mask 22 in a state close to parallel light is projected in the diffusion direction. Refracted at 25 and irradiated onto the shade 15. Since the projection light 31 transmitted through the projection lens 25 is irradiated toward the shade 15 in such a diffused state, the projection light 31 is enlarged and projected onto the shade 15.

  Thereby, the pattern 35 by the light irradiated from the projection lens 25 forms an image on the shade 15, and the portion irradiated with the projection light 31 on the shade 15 shines in the shape of the pattern 35. Since the shade 15 is made of a translucent member, the pattern 35 is opposite to the surface irradiated with light from the projection lens 25 in the shade 15 when the portion irradiated with the projection light 31 shines in the shape of the pattern 35. That is, the pattern 35 is displayed not only on the inner surface 16 of the shade 15 but also on the outer surface 17. The pattern 35 of the mask 22 is projected onto the shade 15 and displayed on the outer surface 17 as described above, so that it can be visually recognized.

  Of the light emitted from the nightlight LED 21, the light not directed to the direction of the mask 22 and the light reflected by the mask 22 are directed to exit from between the nightlight LED 21 and the mask 22. This light is applied to the portion of the case 26 between the night light LED 21 and the mask 22. However, since the case 26 is formed of a transparent member, the light applied to the case 26 is directed to the outside of the case 26. Through the case 26.

  Similarly, of the light transmitted through the light transmitting portion 23 of the mask 22, the light that does not go in the direction of the projection lens 25 and the light reflected by the projection lens 25 are in a direction to escape from between the mask 22 and the projection lens 25. Head. This light is applied to a portion of the case 26 between the mask 22 and the projection lens 25 and passes through the case 26 toward the outside of the case 26 made of a transparent member.

  The light transmitted through the case 26 as described above diffuses in the space defined by the main body 2 and the shade 15 as leakage light 32 and is irradiated to a wide range of the shade 15. The shade 15 scatters and emits the leaked light 32 to make the entire shade 15 shine. However, since the leaked light 32 has a small amount of light, the shade 15 shines with a small amount of light. Become. For these reasons, when the night light 20 is turned on, the entire shade 15 shines with a weak light amount, and the pattern 35 is projected to the position where the projection light 31 is irradiated on the shade 15 and the shade 15 shines in the shape of the pattern.

  In the lighting device 1 according to the above-described embodiment, since the nightlight 20 is provided with the mask 22 that can project the pattern 35, the light from the nightlight LED 21 is transmitted through the mask 22 when the nightlight 20 is turned on. Can be projected. Thereby, since the projected pattern 35 can be visually recognized when the nightlight 20 is turned on, the aesthetic appearance when the nightlight 20 is turned on can be improved. The nightlight 20 has a light-transmitting case 26 that houses the nightlight LED 21 and the mask 22, and a part of the light emitted from the nightlight LED 21 is transmitted between the nightlight LED 21 and the mask 22. The case 26 is allowed to pass through. For this reason, among the light emitted from the nightlight LED 21, the light that is not used for the projection of the pattern 35 can be transmitted through the case 26 and irradiated outside the case 26. The light emitted from the nightlight LED 21 can be effectively used. As a result, it is possible to improve the designability at the time of light emission while ensuring the irradiation efficiency to the surroundings at the time of light emission of the nightlight LED 21.

  Moreover, since the shade 15 on which the pattern 35 is projected when the light transmitted through the mask 22 is irradiated from the projection lens 25 is provided, when the nightlight LED 21 emits light, the pattern 35 projected on the shade 15 is visually recognized. Thereby, the beauty | look at the time of lighting of the nightlight 20 can be improved more reliably. As a result, the design at the time of light emission of nightlight LED21 can be improved more reliably.

  Further, by using the shade 15 as a projection member for projecting the light emitted from the projection lens 25, it is possible to project the pattern 35 without using a new projection member. As a result, it is possible to suppress an increase in the number of parts when the pattern 35 is projected when the nightlight 20 is turned on, and to suppress an increase in manufacturing cost when improving the design when the nightlight 20 is turned on.

  The shade 15 is made of a translucent member, and the pattern 35 formed by the light emitted from the projection lens 25 is imaged on the shade 15 and displayed on the outer surface 17 of the shade 15. The pattern 35 projected onto the image 15 can be visually recognized more reliably. As a result, the design at the time of light emission of nightlight LED21 can be improved more reliably.

  Moreover, since the nightlight LED 21 is used as the light source of the nightlight 20, when the nightlight 20 that emits light with a small amount of light is turned on, it is possible to suppress a reduction in the amount of irradiation light irradiated to the surroundings. As a result, it is possible to improve the design at the time of lighting while securing the light amount to the surroundings when the night light 20 is turned on.

[Modification]
FIG. 8 is a modified example of the illumination device according to the embodiment, and is an explanatory view showing a state in which the light distribution adjustment lens is provided in the nightlight. In the illumination device 1 described above, a light distribution adjustment lens 29 can be further provided between the nightlight LED 21 and the mask 22 as shown in FIG. The light distribution adjustment lens 29 is a lens that adjusts the light distribution of the light emitted from the night light LED 21 and emits the light to the mask 22 side. It can be set as a condensing lens. Accordingly, even when an LED having a wide light directivity angle is used as the night light LED 21, the light distribution can be adjusted by the light distribution adjustment lens 29, and the mask 22 can be efficiently irradiated with light.

  Moreover, in the illuminating device 1 mentioned above, although the mask 22 uses the black-and-white positive film, you may use other than this for the mask 22. For example, a color film may be used for the mask 22. When a color film is used for the mask 22, even when an LED that emits white light is used as the night-light LED 21, the shade 15 on which the light transmitted through the mask 22 of the color film is projected has a color pattern 35 or characters. Can be projected. Thereby, the design property at the time of lighting of the nightlight 20 can be improved more. The mask 22 may be formed by screen printing or offset printing.

  Moreover, in the illuminating device 1 mentioned above, although the case 26 is formed of the transparent member, the case 26 may not be entirely transparent. For example, a colored member may be used for the mask holding portion 27 and the lens holding portion 28, and a portion between these members in the case 26 may be formed of a transparent member. The case 26 can be of any structure as long as it stores at least the mask 22 and has translucency.

  Moreover, the nightlight 20 may be comprised so that replacement | exchange of the mask 22 is possible. The night light 20 is configured so that, for example, a slit is formed in the vicinity of the mask holding portion 27 of the case 26 and the mask 22 held by the mask holding portion 27 can be exchanged by inserting and removing the mask 22 from the slit. It may be. In this way, by configuring the mask 22 so as to be replaceable, the design 35 projected onto the shade 15 can be changed by replacing the mask 22, so that the design at the time of lighting the nightlight 20 is further improved. Can be made.

  Moreover, in the illuminating device 1 mentioned above, although the nightlight 20 is arrange | positioned in the fixed state, the nightlight 20 may be made movable. For example, the pattern 35 projected onto the shade 15 can be changed in size by changing the distance between the shade 15 and the projection lens 25, so that the distance between the mask 22 and the projection lens 25 changes. You may enable it to move the position of the projection lens 25. FIG. Alternatively, the entire night light 20 may be moved in the direction in which the distance between the shade 15 and the projection lens 25 changes. Thereby, since the magnitude | size of the pattern 35 projected on the shade 15 can be changed, the design property at the time of lighting of the nightlight 20 can be improved more.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Main body part 3 Instrument mounting hole 4 Main body part side fitting part 7 Circuit board 8 LED drive circuit 10 LED
11 inner LED board 12 outer LED board 15 SEED (projection member)
16 Inner surface 17 Outer surface 18 Cage side fitting part 20 Nightlight 21 Nightlight LED (light emitting part)
DESCRIPTION OF SYMBOLS 22 Mask 23 Light transmission part 24 Light-shielding part 25 Projection lens 26 Case 27 Mask holding part 28 Lens holding part 29 Light distribution adjustment lens 31 Projection light 32 Leakage light 35 Picture

Claims (4)

A light emitting part for emitting light;
A mask that is disposed away from the light emitting unit on a side irradiated with light from the light emitting unit with respect to the light emitting unit, and projects a pattern by transmitting the irradiation light from the light emitting unit;
A projection lens that is disposed on a side through which the irradiation light from the light emitting unit is transmitted with respect to the mask and projects the light transmitted through the mask;
A case in which the light emitting unit, the mask, and the projection lens are housed, and at least a part of light emitted from the light emitting unit is transmitted from between the light emitting unit and the mask to the outside;
A lighting device comprising:   The illuminating device according to claim 1, further comprising: a projection member on which a pattern is projected when the projection lens emits light emitted from the light emitting unit and transmitted through the mask. The projection member comprises a translucent member,
The pattern by the light irradiated from the projection lens forms an image on the projection member, and is also displayed on a surface of the projection member opposite to a surface irradiated with light from the projection lens. The lighting device described.   The illuminating device according to claim 1, wherein the light emitting unit is used as a light source for a night light.

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