JP2014150009A - Bulb type illumination device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bulb type illumination device in which characteristics of irradiation light such as an irradiation area, irradiation intensity and the like can be changed arbitrarily, and what is more, easily.SOLUTION: A bulb type illumination device includes: a light emitting body 70 included in a bulb type illumination device body 30 and including a plurality of light emitting elements 71; a lens member 40 including a plurality of lenses 41 arranged facing each of the plurality of light emitting elements 71 and rotation prevention members 42 for preventing rotation of itself; and a lens member movement mechanism for moving the lens member 40 in an optical axial direction of the light emitted from the light emitting elements 71, in a state where an opposed relationship of the light emitting elements 71 and the lenses 41 is maintained.

Description

  The present invention relates to a light bulb type lighting device.

  2. Description of the Related Art A light bulb-type lighting device including a light emitter having a light emitting element such as an LED (Light Emitting Diode) has been attracting attention in recent years because it can have a longer life and energy saving than an incandescent light bulb. In such a bulb-type illumination device, light from the light emitting element usually passes through a lens or the like and irradiates the outside. At this time, by changing the distance between the light emitting element and the lens or the like, the characteristics (irradiation area, irradiation intensity, etc.) of light (irradiation light) for irradiating the outside can be changed.

  In relation to this technique, for example, the technique described in Patent Document 1 is known. Patent Document 1 describes that a local illumination lamp includes a light emitting diode and a lens disposed in front of the light emitting diode, and the lens is divided into a plurality of lens portions according to the light emission intensity distribution of the light emitting diode. . In addition, among the light emitted from the light emitting diodes, light with high light intensity is transmitted through the lens unit so that the light is emitted toward the irradiated surface with a large diffusion angle, and a substantially rectangular shape is arranged on the irradiated surface. The formation of a light pattern is described.

JP-A-2005-174585

  In the technique described in Patent Document 1, four lenses are arranged so as to be positioned at each vertex of a square to form a lens member, and four light emitting elements are provided so as to face each of the lenses. Yes. The distance between the lens and the light emitting element is variable by rotating the center of the lens member (the center of the square) around the optical axis. Therefore, the distance between the lens and the light emitting element can only be set at a predetermined interval according to the angle of rotation (45 ° in Patent Document 1). Therefore, depending on the technique described in Patent Document 1, the distance between the lens and the light emitting element cannot be changed continuously, and the characteristics of the irradiation light cannot be changed arbitrarily.

  Further, since the lens member is rotated, the incident angle when the light emitted from the light emitter enters the lens may be different before and after the rotation of the lens member. That is, before and after the rotation, the relative position of the optical axis of the light emitting element may be different from the facing lens. Thereby, the characteristics of light (that is, irradiation light) transmitted through the lens and emitted to the outside may be different. In addition, the lens and the light emitting element may not face each other depending on the angle of rotation, such as 22.5 ° or 67.5 ° in Patent Document 1, for example, which is not a predetermined angle. In some cases, sufficient irradiation light may not be obtained. Therefore, in the technique described in Patent Document 1, it is necessary that the alignment of the lens with respect to the light emitting element (that is, the rotation of the lens member) is strictly performed to some extent. Therefore, the operation is complicated to change the characteristics of the irradiation light.

  The present invention has been made in view of these problems, and the problem to be solved by the present invention is that it is possible to arbitrarily change the characteristics of the irradiation light such as the irradiation area and the irradiation intensity, and it is further easy to The object is to provide a lighting device.

  The present inventors have intensively studied to solve the above problems. As a result, the above-mentioned problem can be solved by providing a lens position adjusting means for moving up and down the plurality of lenses facing each of the plurality of light emitting elements in the optical axis direction of the light emitting elements while maintaining the facing relationship. I found it.

  ADVANTAGE OF THE INVENTION According to this invention, the light bulb type illuminating device which can change arbitrarily the characteristics of irradiation light, such as irradiation area and irradiation intensity, can be provided.

It is a side view of the light bulb type illuminating device according to the present embodiment. It is an upper perspective view of the light bulb type illumination device according to the present embodiment. It is a disassembled perspective view of the electric light bulb type illuminating device concerning this embodiment. It is a disassembled perspective view which expands and shows a part above the light-emitting body which comprises the lightbulb type illuminating device which concerns on this embodiment. It is sectional drawing (AA sectional view taken on the line AA of FIG. 4) about the lens position adjustment member which comprises the lightbulb type illuminating device which concerns on this embodiment. It is a figure explaining operation | movement of each member when changing the distance of a light-emitting body and a lens member by rotating a lens position adjustment member.

  Hereinafter, although the form (this embodiment) for implementing this invention is demonstrated, this invention is not restrict | limited at all to the following content.

<Configuration>
FIG. 1 is a side view of a bulb-type lighting device 100 according to the present embodiment. The bulb-type lighting device 100 includes an annular lens position adjustment member 20 and a main body 30. Although details will be described later, in the bulb-type lighting device 100, the lens position adjusting member 20 is configured to be rotatable, and the lens supported inside the lens position adjusting member 20 by rotating the lens position adjusting member 20. The position of the member 40 (see FIG. 3, not shown in FIG. 1) is changed.

  The main body 30 includes a light emitter 70 and a reflector member 60 (not shown in FIG. 1; both will be described later) in addition to the radiator 50 and the base 31. The heat generated with the light emission of the light emitter 70 is released to the outside by the heat radiator 50. In addition, when the conductive connection portion 32 constituting the base 31 is connected to a connection port (not shown), electric power is supplied to the light emitter 70 and the light emitter 70 emits light.

  FIG. 2 is a top perspective view of the light bulb type illumination device 100 according to the present embodiment. In the lens position adjusting member 20, a lens member 40 including five lenses 41 positioned at the apex and center of a square is supported. The lens member 40 is made of, for example, a transparent acrylic resin.

  The light emitted from the light emitter 70 provided inside the heat radiating body 50 is transmitted through the lens member 40 and emitted to the outside (irradiates the outside). More specifically, although details will be described later with reference to FIG. 3, light emitted from five light emitting elements 71 (such as LEDs) included in the light emitter 70 is disposed to face the respective light emitting elements 71. The light is emitted to the outside through the five lenses 41. The inner side surface of the end portion of the lens position adjusting member 20 has a tapered shape that narrows upward. Thereby, the light transmitted through the lens 41 is reflected and collected, and the directivity is improved.

  FIG. 3 is an exploded perspective view of the bulb-type lighting device 100 according to the present embodiment. Inside the radiator 50, a power circuit board 35 for supplying predetermined power to the light emitting element 71 of the light emitter 70 via lead wires (not shown), and a resin housing for housing the power circuit board 35. A case 36 is disposed. The power supply circuit board 35 and the connection portion 32 are connected by lead wires (not shown) for supplying commercial power to the power supply circuit board 35. In addition, four screw holes 51 into which four screws 61 for fixing the light emitter 70 and the reflector member 60 described later are inserted are provided on the upper end surface of the radiator 50.

  The power supply circuit board 35 is obtained by mounting a plurality of electronic components (not shown) on the board. The power circuit board 35 includes, for example, a circuit that rectifies AC power from a commercial power source into DC power, a circuit that adjusts the voltage and current of the DC power after rectification, and the like.

  The storage case 36 is installed inside the radiator 50. The storage case 36 is made of a resin such as PBT (polybutylene terephthalate) or PC (polycarbonate). A base 31 is fitted to the end of the storage case 36 opposite to the light emitter 70 and is fixed by an adhesive or the like. The base 31 and the connection portion 32 are insulated by an insulating member 33.

  The light emitter 70 is provided in the main body 30 (bulb-type lighting device main body), and the light emitter 70 is provided with light emitting elements 71 at a total of five locations including each vertex of the square and the vicinity of the center thereof. Yes. That is, the light emitter 70 is provided in the main body 30 (bulb-type lighting device main body), and includes a plurality of light emitting elements 71 (in this embodiment, five light emitting elements 71). Further, in the vicinity of the outer edge of the light emitter 70, four through holes 72 through which the four screws 61 pass are provided in order to fix the light emitter 70 together with the reflector member 60 to the upper end surface of the radiator 50. Here, the light emitter 70 and the reflector member 60 constituting the main body 30 and the lens member 40 and the lens position adjusting member 20 disposed above them will be described with reference to FIG.

  FIG. 4 is an exploded perspective view showing a part above the light emitter 70 constituting the light bulb type lighting apparatus 100 according to the present embodiment in an enlarged manner. In the reflector member 60, five light extraction holes 65 are provided at positions where the optical axis of the light emitting element 71 penetrates when the light emitting element 70 is fixed together with the light emitting body 70. That is, for example, the light emitted from the light emitting element 71a shown in FIG. 4 reaches the lens 41a through the light extraction hole 65a. And the light which reached | attained the lens 41a permeate | transmits the lens 41a, and irradiates the exterior. Further, the inner surface of the end of the light extraction hole 65 has a taper shape that narrows upward. Thereby, after reflecting the light which passes the light extraction hole 65, the lens 41 can be permeate | transmitted and the light with improved directivity can be obtained.

  As described above, the reflector member 60 provided in the main body 30 is formed around the light extraction hole 65 for allowing the light from the light emitting element 71 to reach the lens member 40 and the light extraction hole 65, and is extracted from the light extraction hole 65. And a tapered end portion (reflecting plate) formed on the inner surface of the light extraction hole 65 for reflecting the reflected light.

  A concave portion 63 is provided on the upper surface of the reflector member 60 in the vicinity of the outer edge so that a convex portion 42 (described later) provided on the lower surface of the lens member 40 can be fitted. Three recesses 63 are provided at substantially equal intervals so as to correspond to the projections 42. Further, a convex portion 64 is provided at the upper end of the outer surface of the reflector member 60 so that a guide groove 21 (described later) formed on the inner surface of the lens position adjusting member 20 can be fitted. In other words, the convex portion 64 is formed on the side surface of the main body 30 (that is, the bulb-type lighting device main body. More specifically, the reflector member 60 constituting the bulb-type lighting device main body (main body portion 30)), and the guide groove. 21 is fitted. Three convex portions 64 are provided at substantially equal intervals so as to correspond to the guide grooves 21.

  The convex portion 64 is slidable along the guide groove 21 in the guide groove 21, whereby the vertical position of the lens member 20 is changed. Details of this point will be described later with reference to FIGS.

  As described above, the five lenses 41 are provided on the upper surface of the lens member 40. On the other hand, a convex portion 42 is provided on the lower surface at a position where the concave portion 63 provided in the reflector member 60 can be fitted. Incidentally, the convex part 42 is fitted in the concave part 63 so as to be slidable in the vertical direction. Three convex portions 42 are provided at substantially equal intervals on the lower surface in the vicinity of the outer edge of the lens member 40 so as to correspond to the concave portion 63. That is, the lens member 40 includes a plurality of lenses (five lenses 41 in the present embodiment) arranged to face each of the plurality of light emitting elements 71 (five light emitting elements 71 in the present embodiment), and the rotation of the lens member 40. And a convex portion 42 (rotation preventing member) for preventing the above.

The lens position adjusting member 20 is provided so as to surround the light emitting body 70 and the reflector member 70 fixed to the upper end surface of the heat radiating body 50. On the inner surface of the lens position adjusting member 20, a guide groove 21 in which a convex portion 64 provided on the reflector member 60 is slidably fitted is formed. The guide groove 21 and the convex portion 64 are fitted, A lens position adjusting member 20 is provided. Although not shown, three guide grooves 21 are provided at substantially equal intervals on the inner surface. Further, a convex portion 22 for rotatably supporting the lens member 40 is provided on the inner side surface of the lens position adjusting member 20. Although not shown in FIG. 4, three convex portions 22 are provided at substantially equal intervals on the inner surface.
The guide groove 21 and the convex portion 22 will be described in more detail with reference to FIG.

  FIG. 5 is a cross-sectional view (a cross-sectional view taken along the line AA in FIG. 4) of the lens position adjusting member 20 constituting the light bulb type illumination device 100 according to the present embodiment. The outer edge of the lens member 40 is fitted between the convex portion 22 provided on the inner surface of the lens position adjusting member 20 and the lower end surface 24 of the tapered outer edge of the lens position adjusting member 20. However, the lens member 40 is freely rotatable with respect to the lens position adjusting member 20 while being fitted between the convex portion 22 and the lower end surface 24. That is, the lens member 40 is supported with respect to the lens position adjusting member 20 so as to be slidable between the convex portion 22 and the lower end surface 24.

  Further, the guide groove 21 (first guide groove) formed on the inner side surface of the lens position adjusting member 20 gradually descends from the uppermost part 21a at the highest position to the lowermost part 21b at the lowest position. Are formed with an inclination. Accordingly, the convex portion 64 (first convex portion) of the reflector member 60 can slide between the uppermost portion 21a and the lowermost portion 21b as the lens position adjusting member 20 rotates. ing. During this sliding, the convex portion 42 slides in the vertical direction within the concave portion 63, so that the lens member 40 can be moved in the vertical direction (light of light from the light emitting element 71) without rotating the lens member 40. Axis direction).

  As described above, the light bulb type illumination device 100 of the present embodiment moves the lens member 40 in the optical axis direction of the light emitted from the light emitting element 71 while maintaining the facing relationship between the light emitting element 71 and the lens 41. A lens member moving mechanism is provided. More specifically, the lens member moving mechanism provided in the light bulb type proving apparatus 100 moves the lens position adjusting member 20 in the optical axis direction of the light emitted from the light emitting element 71 as the lens position adjusting member 20 rotates. Thus, the lens member 40 supported by the lens position adjusting member 20 is configured to move in the optical axis direction.

<Action>
Next, the effect | action in the lightbulb type illuminating device 100 is demonstrated, referring FIGS. 4-6 suitably.
As shown by the alternate long and short dash line in FIG. 4, the reflector member 60 and the light emitter 70 are fixed to the radiator 50 with screws 61. Further, in the lens member 40, the convex portion 42 provided on the lower surface of the lens member 40 is fitted into the concave portion 63 provided on the upper surface of the reflector member 60, whereby the lens member 40 is attached to the reflector member 60. In contrast, it does not rotate. However, unlike the fixing with the screw 61, the lens 40 can move in the vertical direction by sliding in the vertical direction within the concave portion 63 of the convex portion.

  As described above, the lens member 40, the reflector member 60, and the light emitter 70 are arranged and fixed so as not to rotate. On the other hand, the lens member 40 is rotatably supported by the lens position adjusting member 20. This means that the lens member 40 does not rotate when the lens position adjusting member 20 is rotated.

  Therefore, when the lens position adjusting member 20 is rotated, the position of the lens position adjusting member 20 changes according to the position of the convex portion 64 slidably fitted in the guide groove 21. That is, when the lens position adjusting member 20 is rotated, the position of the convex portion 64 does not change by rotation, and therefore the position of the lens position adjusting member 20 is along the guide groove 21 fitted to the convex portion 64. Will change.

  Specifically, when the lens position adjusting member 20 is rotated, the convex portion 64 slides in the inclined guide groove 21, and thus the lens position adjusting member 20 moves in the vertical direction. The lens member 40 does not rotate as described above, but is movable in the vertical direction. Therefore, if the lens position adjusting member 20 is rotated, the lens member 40 does not rotate accordingly, but the lens member 40 moves in the vertical direction as the lens position adjusting member 20 moves in the vertical direction. It will be. This point will be further described with reference to FIG.

  FIG. 6 is a diagram for explaining the operation of each member when the distance between the light emitter 70 and the lens member 40 is changed by rotating the lens position adjusting member 20. 6A shows a case where the convex portion 64 of the reflector member 60 is positioned at the uppermost portion 21a of the lens position adjusting member 20. FIG. 6B shows a case where the convex portion 64 of the reflector member 60 adjusts the lens position. The time when it is located in the lowermost part 21b in the member 20 is shown.

  As shown in FIG. 6A, when the convex portion 64 is positioned at the uppermost portion 21a, the position of the lens member 40 is closest to the reflector member 60. That is, the distance between the light emitter 70 and the lens member 40 is the shortest. From this state, when the lens position adjusting member 20 is rotated by 90 °, for example, the convex portion 64 slides along the guide groove 21 and the position of the lens position adjusting member 20 moves upward (FIG. 6B). )reference). At this time, most of the convex portion 42 provided on the lower surface of the lens member 40 is pulled out from the concave portion 63 provided on the upper surface of the reflector member 60. However, even in this state, since a part of the convex portion 42 is in a state of being fitted in the concave portion 63, even when the lens position adjusting member 20 is rotated again, the lens member 40 does not rotate.

  For example, as shown to Fig.6 (a), when the distance of the light-emitting body 70 and the lens member 40 becomes short, an irradiation area will become large. On the other hand, for example, as shown in FIG. 6A, the irradiation intensity increases as the distance between the light emitter 70 and the lens member 40 increases. Therefore, the user easily and continuously changes the distance between the light emitter 70 and the lens member 40 so that the characteristics such as the irradiation area and the irradiation intensity become desired by rotating the lens position adjusting member 20. can do.

<Effect>
According to the light bulb type illumination device 100 described above, it is possible to provide a light bulb type illumination device that can arbitrarily change the characteristics of the irradiation light such as the irradiation area and the irradiation intensity, and is easy.

  In particular, in the light bulb type illumination device 100 according to the present embodiment, unlike the conventional one, the distance between the light emitter 70 and the lens member 40 can be changed without rotating the lens member 40. As a result, it is not necessary to align the lens member accompanying the rotation of the lens member, and the distance can be easily changed (that is, easily changed). Further, since the distance is changed by the vertical movement of the lens member 70 accompanying the rotation of the lens position adjusting member 20, the lens member 70 can be stopped at an arbitrary position. Thereby, characteristics of irradiation light, such as an irradiation area and irradiation intensity, can be set up more flexibly than before.

  Further, as shown in FIG. 4 and the like, a reflector member 60 is provided between the light emitter 70 and the lens member 40. Thereby, the directivity of the light emitted from the light emitting element 71 of the light emitter 70 can be improved, and the emitted light can be prevented from leaking in an unexpected direction (for example, the left-right direction in FIG. 4). Therefore, substantially all of the emitted light is emitted to the outside through the lens member 40, and the irradiation intensity can be increased. Further, for example, since light is prevented from leaking in the left-right direction, there is no leakage of light from, for example, the lens position adjusting member 20 and the main body 30, and the design characteristics when the light bulb type lighting device 100 is used are maintained. can do. Further, since there is no light leakage, better light can be applied to the lens member 40.

  Furthermore, as shown in FIGS. 1 and 6, the lens position adjusting member 20 that adjusts the position of the lens member 40 is disposed on the outermost side of the bulb-type lighting device 100. That is, the lens position adjustment member 20 is provided so as to surround the periphery of the heat radiating body 50, and is the member having the largest diameter in the bulb-type lighting device 100. Therefore, when the user changes the characteristics such as the irradiation area and the irradiation intensity, when operating the lens position adjusting member 20, the lens position adjusting member 20 has the largest diameter and thus is easy to grip. Therefore, the user can rotate the lens position adjusting member 20 with an easy operation (ie, easy operation). Furthermore, the position of the lens member 40 can be easily changed by such an operation, and characteristics such as the irradiation area and the irradiation intensity can be easily changed.

  Further, in the light bulb type illumination device 100 of the present embodiment, the rotational force of the lens position adjusting member 20 is used as it is as a driving force for moving the lens member 40 in the vertical direction. Specifically, as described with reference to FIGS. 4 and 5 and the like, the lens member 40 is rotatably supported by the lens position adjusting member 20. The lens member 40 is also moved in the vertical direction as the lens position adjusting member 20 is moved in the vertical direction as the convex portion 64 slides in the guide groove 21.

  Therefore, in the light bulb type illumination device 100, after the rotational force of the lens position adjusting member 20 is transmitted to another arbitrary member, the lens 40 is moved by driving the other arbitrary member. Absent. Therefore, the number of parts constituting the light bulb type illumination device 100 can be reduced. Furthermore, characteristics such as irradiation area and irradiation intensity can be changed with a simple mechanism.

  Furthermore, since the lens member 40 is moved without interposing another arbitrary member, friction between the members is reduced, and a force for moving the lens member 40 (the lens position adjusting member 20 is rotated). Force) is small. As a result, any user can easily change the position of the lens member 40 to change the characteristics such as the irradiation area and the irradiation intensity. Furthermore, since the number of parts is reduced, the frequency of occurrence of contact failures and the like can be reduced, and the durability of the bulb-type lighting device 100 can be improved.

  Moreover, the light bulb type illumination device 100 according to the present embodiment includes a base 31 (see FIG. 1 and the like), and can be used immediately by connecting to a commonly used socket. Therefore, for example, the bulb-type lighting device 100 can be used by using an existing socket on a ceiling, a wall, or the like, and there is no need to introduce new equipment or equipment. Therefore, there is no restriction on the installation location and it can be used in various places.

<Modification>
As mentioned above, although this embodiment was described, this invention is not restrict | limited to the said embodiment, In the range which does not impair the summary of this invention, it can change arbitrarily.

  For example, the reflector member 60 is not necessarily required and can be omitted as appropriate. When the reflector member 60 is omitted, for example, a convex portion corresponding to the convex portion 64 may be provided on the side surface of the light emitter 70 and the convex portion and the guide groove 21 of the lens position adjusting member 20 may be fitted. . That is, the member that provides the convex portion 64 is not limited to the reflector member 60 that constitutes the main body portion 30, and may be the light emitter 70, the heat radiator 50, or the like.

  Further, for example, a plurality of small grooves or the like are provided at predetermined intervals in the guide groove 21 of the lens position adjusting member 20, and when the lens position adjusting member 20 is rotated, a click feeling is generated at every predetermined interval. May be. Thereby, for example, when it is desired to set the same irradiation area or the like in a plurality of bulb-type illumination devices, the rotation angle of the lens position adjusting member 20 in all the bulb-type illumination devices can be easily set. Moreover, even when the time of use is different, the same illumination area or the like can be obtained every time. Furthermore, the position of the lens member 40 can be more stably fixed by providing a small groove or the like.

  Furthermore, the convex portion and the concave portion (including the guide groove 21) provided in the above embodiment can be replaced with each other. That is, for example, a convex portion may be provided on the inner side surface of the lens position adjusting member 20, and a guide groove may be provided on the side surface of the reflector member 60 so as to be fitted therewith. That is, in the embodiment shown in FIG. 4 and the like, the guide groove 21 (first guide groove) is formed on the inner surface of the lens position adjusting member 20, and the convex portion 64 (first convex portion) is formed on the side surface of the reflector member 60. ) Is formed, for example, a convex portion (second convex portion) is formed on the inner side surface of the lens position adjusting member 20, and a guide groove (second guide) is formed on the side surface of the main body portion 30 such as the reflector member 60. A groove) may be provided.

  In addition, the number of convex portions and concave portions (including the guide grooves 21) provided can be changed as appropriate. For example, in this embodiment, three guide grooves 21 are provided corresponding to the number of convex portions 64, but the number of guide grooves 21 can be changed as appropriate. However, from the viewpoint that the position of the lens 41 can be adjusted more reliably, a plurality of guide grooves 21 are preferably provided. And the number of the convex parts 64 should just be determined suitably according to the number of the guide grooves 21 provided. Further, for example, the convex portion 22 provided on the inner surface of the lens position adjusting member 20 can be appropriately changed in the same manner. However, a plurality of convex portions 22 may be provided from the viewpoint that the lens 41 can be held more reliably. preferable.

  Furthermore, the number of issuing elements 71 provided in the light emitter 70 and the number of lenses 41 provided in the lens member 40 can be changed as appropriate. That is, as long as the plurality of light emitting elements 71 are provided, any number may be provided. Further, the number of lenses 41 may be determined according to the number of light emitting elements 71 provided.

  Moreover, the kind of the light emitting element 71 provided in the light emitter 70 is not limited to the LED. For example, the light emitting element 71 may be anything such as organic electroluminescence.

  In addition, the light bulb-type lighting device can be configured by adding, converting, or deleting any means, member, or the like within a range that does not impair the gist of the present invention.

20 Lens position adjusting member (Lens member moving mechanism)
21 guide groove (lens member moving mechanism, first guide groove)
22 Convex (lens member moving mechanism)
30 Main body (bulb-type lighting device main body)
40 Lens member 41 Lens 42 Convex part (rotation preventing member, lens member moving mechanism)
60 Reflector member 64 Convex part (lens member moving mechanism, first convex part)
70 Light Emitter 71 Light Emitting Element 100 Light Bulb Illumination Device

Claims (4)

A light-emitting body that is provided in a light bulb-type lighting device body and includes a plurality of light-emitting elements;
A lens member comprising a plurality of lenses disposed to face each of the plurality of light emitting elements, and a rotation preventing member for preventing rotation of the lens;
A light bulb comprising: a lens member moving mechanism that moves the lens member in an optical axis direction of light emitted from the light emitting element in a state in which the facing relationship between the light emitting element and the lens is maintained. Type lighting device. A ring-shaped lens position adjusting member configured to be rotatable and supporting the lens member;
The lens member moving mechanism is configured such that the lens member moves in the optical axis direction when the lens position adjusting member moves in the optical axis direction as the lens position adjusting member rotates. The bulb-type lighting device according to claim 1, wherein The inner surface of the lens position adjusting member is provided with a first guide groove having an inclination, or a first convex portion,
On the side surface of the bulb-type lighting device body, there is a second protrusion that is slidably fitted into the first guide groove, or an inclination that the first protrusion is slidably fitted. A second guide groove having,
By rotating the lens position adjusting member, the second convex portion slides in the first guide groove, or the first convex portion slides in the second guide groove. The light bulb type illumination device according to claim 2, wherein a lens member supported by the lens position adjusting member is moved in the optical axis direction. The light bulb-type lighting device body is formed between the light emitter and the lens member, a light extraction hole for allowing light from the light emitting element to reach the lens member, and a periphery of the light extraction hole. A reflector having a reflector that reflects the light extracted from the extraction hole;
The light bulb-type lighting device according to claim 3, wherein the convex portion is provided on a side surface of the reflector member.

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