HK1074870B - Lighting apparatus - Google Patents

Description

Lighting device

Technical Field

The present invention relates to lighting devices, and more particularly to lighting devices employing Light Emitting Diodes (LEDs).

Background

In order to ensure a good forward field of view without excessively dazzling an opposite vehicle, a lighting fixture mounted on a bicycle is configured as follows.

(a) The light emitted from the filament disposed near the focal point of the paraboloid is diffused to the surroundings, and is reflected by the paraboloid to form parallel light rays in the forward direction in addition to the light directly emitted in the forward direction. The parallel light rays are formed into a desired light distribution pattern by the forward lens together with the light emitted directly forward. (see, for example, Japanese patent laid-open Nos. 2002-50212 and 2002-50213).

(b) The light emitted from the filament is projected forward in a desired light distribution pattern by the polygon mirror. The front lens only functions as a cover. The size and angular arrangement of each portion of the polygon mirror are determined so that each portion reflects light incident from the filament in a predetermined direction and a desired light distribution pattern is obtained by the set of each portion (see patent documents 1 and 2).

By using these lighting fixtures, a desired light distribution pattern can be efficiently obtained.

However, in the case where the lighting device is used for a bicycle or is not limited to a bicycle and is carried on a walking person as a general lighting device, light is radiated not only forward but also transmitted from, for example, a side peripheral portion, and thus, a vehicle, particularly an automobile, approaching from a lateral direction, that is, from a side surface is easily recognized in the dark. Therefore, the safety of the lighting device carrier can be ensured.

Conventionally, light sources for a side peripheral portion, for example, different from a forward light source, are often used separately to take out light from a portion other than the front. However, the use of another light source is not preferable from the viewpoint of downsizing, weight saving, energy saving, and reduction in manufacturing cost.

Disclosure of Invention

The invention aims to provide a lighting device which is not limited to bicycle application and can obtain light distribution in the forward direction and lighting in directions other than the forward direction without using other light sources except a light source for forward irradiation.

The lighting device mounted on the basket body of the invention comprises: a light emitting diode positioned at one end portion, namely the front portion, of the housing of the lighting device; and a side transmission part which exposes the surface between the basket body and the side cover behind the light emitting diode and transmits light from the side part; and a light path converting portion which is located at the rear side of the light emitting diode, changes the direction of the light emitted from the light emitting diode, and emits the light toward the side transmitting portion, wherein the light path converting portion is a light guide formed of a material having a higher refractive index than air, the light emitted from the light emitting diode is incident on the light guide at an end portion of the light guide on the side of the light emitting diode, and is totally reflected to change the advancing direction of the light, so as to be emitted from the emitting surface of the light guide toward the side transmitting portion, and the pin of the light emitting diode is led out from the rear side, passes through the light guide, and is connected to a wiring substrate located at the rear side of the.

According to this configuration, the forward irradiation and the side irradiation can be performed with a simple structure, using only the light emitting diode for the forward irradiation and without using another light source for the side surface.

The illumination device according to the present invention is not limited to the bicycle application, and can realize the forward illumination and the illumination of the periphery of the side portion of the illumination portion without using any light source other than the light source for the forward illumination. As a result, it is possible to achieve downsizing, weight saving, energy saving, and cost reduction.

The above and other objects, features, aspects and advantages of the present invention will become apparent from the following detailed description of the present invention, which is to be read in connection with the accompanying drawings.

Drawings

Fig. 1 is a perspective view showing a lighting device according to an embodiment of the present invention;

fig. 2A is a view showing a front side cover, fig. 2B is a view showing a light emitting member, fig. 2C is a view showing a light source arrangement member, fig. 2D is a view showing a connection member, and fig. 2E is a view showing an LED;

fig. 3 is a view showing a light source arrangement part of fig. 2C;

fig. 4 is a view of the light source arrangement member of fig. 3 viewed from the bottom side (rear side);

FIG. 5 is a cross-sectional view taken along line V-V of FIG. 4;

FIG. 6 is a cross-sectional view taken along line VI-VI of the lighting device of FIG. 1;

FIG. 7 is a cross-sectional view of the front portion of the lighting device of FIG. 1;

fig. 8 is a diagram showing a state of being separated into a front portion and a rear portion when a battery of the lighting device of fig. 1 is replaced;

FIG. 9 is a cross-sectional view of a support portion that also incorporates the lighting device of FIG. 1;

FIG. 10 is a cross-sectional view taken along line X-X of FIG. 9;

FIG. 11 is a diagram showing a circuit incorporating a switch;

detailed description of the preferred embodiments

Embodiments of the present invention will be described below with reference to the drawings. Fig. 1 is a diagram showing a lighting device according to an embodiment of the present invention. In fig. 1, the lighting device includes: the projector includes a front projection window 1 for projecting light forward, a front cover 22 for covering the side portion thereof, and a housing 21 for housing the components of the illumination device located behind the front projection window, a side transmission portion 3 for transmitting light from the side peripheral portion is disposed between the front cover 22 and the housing 21, a light emitting diode is used as a light source not shown, and a battery stored in the housing 21 is used as a power source.

A flat part 21a is provided on the side of the housing 21, a support member 31 for supporting the illumination device is attached to the flat part 21a, the flat part of the housing is sometimes referred to as a bottom part 21a, and a fixing tape 41 for fixing the illumination device to a mounting target part or the like is further attached to the support member 31. Examples of the mounting target portion include handlebars of bicycles and motorcycles, and rod-like objects inside and outside houses.

Further, a switch operation portion 51a is disposed at the rearmost end of the lighting device, and is moved in the circumferential direction to open and close the switch terminal of the light source circuit.

Fig. 2A to 2E are views showing components of the lighting device shown in fig. 1, fig. 2A shows a front side cover 22 of a cylindrical shape having an open front end and an open rear end, the cover being opaque, and being formed of various plastic materials subjected to a metal plating treatment and various metals such as aluminum, and fig. 2B is a view showing a light emitting member 2 of a transparent cylindrical container shape having an open rear end and a condenser lens 1a and the like disposed at the front end. A side peripheral transmission part 3 is disposed on a side peripheral part of the cylindrical light emitting member 2. The rear part is a housing insertion part 4 fitted into the housing.

Fig. 2C is a diagram showing the light source arrangement member 13 in which LEDs as light sources are arranged. The light source arrangement member 13 is fitted from the open end of the rear end of the light emitting member 2 in fig. 2B. The LED is mounted in the LED insertion hole 6 of the light source arrangement member. As will be described later, the LED has a minute light emitting portion, and the light emitting portion is configured to be positioned in front of the LED insertion hole 6. In the present embodiment, 3 LEDs are used, and 3 LED insertion holes 6 are provided, the LED insertion holes 6 are opened along the axis (rotation axis) of the parabolic rotating mirror 5, and the parabolic rotating mirror 5 is disposed so as to surround the light emitting part of the LEDs from behind, and in order to improve the reflectance, the parabolic rotating mirror 5 is subjected to a plating treatment of a metallic luster having a high reflectance.

Behind the LED insertion hole 6, a cylindrical LED support 7 is arranged for each LED. A side transmission part inner layer 15 is arranged behind the LED support part 7 and is positioned inside the light emitting member 2 so as to overlap the side transmission part 3.A circular wiring board 12 to which pins from the LED are connected is fitted into the rear end face of the side transmission part inner layer 15, and the periphery thereof is surrounded by the edge of the end face of the side transmission part inner layer.A contact pin 16 projects rearward from the rear of the wiring board 12.

Fig. 2D is a diagram showing the connection member 19 provided with a through hole (not shown) through which the contact pin 16 is inserted. The connecting member 19 is disposed after the light source disposing member 13 and inside the housing insertion part 4 that shares mechanical connection, and facilitates electrical connection.

Fig. 2E shows an LED, the light emitting part 11 of the LED8 is sealed with a transparent resin, and the pins 9 are protruded from the rear end face of the sealing resin, the pins 9 are terminals for injecting current into the light emitting part 11 of the LED, the LED8 is a type called a shell-type LED, and a convex curved surface 14 of the transparent resin is formed on the front side, a flat surface 18 is arranged on the rear side, and no light-shielding material is provided around the light emitting part 11. As described above, the LED8 is inserted into the LED insertion hole 6. The pins 9 are connected to the wiring board 12 through the LED support 7 and the side transmissive portion inner layer 15.

Fig. 3 is a diagram illustrating the light source arrangement in more detail, a parabolic mirror 5 is provided for each LED, and this mirror is separated from the parabolic mirror of the adjacent LED by a boundary line 5a. An LED support portion 7 is also provided for each LED, the LED support portion 7 is formed in a cylindrical shape surrounding a hollow, and the base of the cylinder is connected to the side transmission portion inner layer 15. A conical recess 15a is provided on the rear end surface of the side transmission portion inner layer 15.

Fig. 4 is a view showing the rear end portion of the side transmission part inner layer 15, in which a conical recess 15a is provided at a position corresponding to the outer side transmission part 3, and a part of the light emitted from the LED passes through the hollow of the LED support part 7 and is incident on the optical medium material of the side transmission part inner layer having a higher refractive index than air. At the rear end of the side transmissive portion inner layer, the total reflection is performed by the surface of the conical recess 15a (side transmissive portion inner side/air interface) and directed toward the outer peripheral surface 15b of the side transmissive portion inner layer 15. The side transmissive portion inner layer 15 having the conical depressions 15a constitutes an optical path converting portion. That is, the side transmission part inner layer 15 can be regarded as a light guide.

Fig. 5 is a view showing a case where light traveling backward through the side transmissive portion inner layer 15 from the LED supporting portion 7 is totally reflected by an interface with air at the conical recess 15a, changes its direction to a side surface, and is emitted from the outer peripheral surface 15b thereof. The angle of the cone of the conical depressions is inclined at about 45 ° so that the advancing direction is changed by 90 ° by the total reflection. Further, the refractive index of the optical medium forming the side transmitting region inner layer 15 must be large enough to cause total reflection at an incident angle of about 45 °, and therefore, the refractive index of the optical medium forming the side transmitting region inner layer 15 must be 1.414 or more.

As described above, the side transmission part inner layer 15 and the conical depressions 15a form a light guide and function as a light path conversion part of light. It can also be seen that the LED support is also included in a part of the light guide.

Fig. 6 is a sectional view taken along line VI-VI in fig. 1. The optical components shown in fig. 2A to 2E are assembled to the left side of fig. 6 (the front side of the lighting device). The front projection window 1, the side transmission part 3 and the housing insertion part 4 are formed in the light emitting member 2 which is a transparent plastic member formed by integral molding, and a front side cover 22 covering the outer periphery of the light emitting member 2 is disposed.

The light emitting member 2 houses a light source arrangement member 13. An LED8 is inserted into an LED insertion hole 6 of the light source arrangement member, and a pin 9 for injecting current into a light emitting section 11 is LED out from a flat rear end surface 18 of the LED, and is connected to a connection section (not shown) of the wiring board 12 via an LED support section 7 and a side transmission section inner layer 15, and a parabolic mirror 5 is arranged so as to surround the light emitting section 11 of the LED8 from the rear side of the LED.

The front part of the LED8 is constituted by a front convex curved surface part 14, and a condenser lens 1a is provided at a position facing the LED of the front projection window. Since the light emitting section 11 is located at the focal point of the parabolic mirror 5, the light emitted from the light emitting section 11 to the side surface reaches the parabolic mirror, and reflects the parallel light forward. The rear end of the LED is a flat surface 18, a cylindrical LED support part 7 is disposed behind the LED, and a side transmission part inner layer 15 is disposed further behind. The side transmission part 3 is located at the outer periphery of the side transmission part inner layer 15.

The housing 21 is provided with, for example, a battery housing 53. The battery functions as a current source for the LEDs, an IC power source for a switching circuit described later, and the like, and 2 pins from 3 LEDs are connected to the wiring board 12. The wiring board connects these LEDs in parallel. On the rear surface of the wiring board 12, 2 contact pins 16 are provided for supplying current from the battery to the LEDs connected in parallel.

An insertion shaft 24 inserted into the support member is provided on the bottom 21a of the housing 21 so as to protrude downward. A female screw 26 is provided inside the insertion shaft 24, and a disc-shaped engaging member 25 is fixed to the outer periphery of the insertion shaft 24, that is, an engaging member 25 having a concave-convex groove that is shallowly engaged with the concave-convex groove of the inner peripheral surface of the support member into which the insertion shaft 24 is inserted is fixed. The function of the engaging member 25 will be described later.

A switch operation part 51a for turning on/off the light emitting part is disposed at the rear end of the housing. The switch operation part 51a is moved in the circumferential direction of the housing, and an elastic biasing force is applied to the switch operation part 51a in one direction in the circumferential direction, and the switch operation part is moved to a predetermined position in the opposite direction in the circumferential direction against the elastic biasing force, and the switch is turned on in this position. When the switch operating portion is returned to its original position by the elastic force without applying a force, the switch is turned off at this position. The relationship between the on/off state of the switch and the on/off state of the LED light emission will be described later.

Fig. 7 is an enlarged cross-sectional view of the light source peripheral portion. The LED8 has a front convex curved surface portion 14, and light emitted forward from the light emitting portion 11 passes through the front convex curved surface portion and is projected forward with the expansion of the light flux suppressed by the condenser lens 1a provided in the front projection window 1. The light emitted from the light emitting section and totally reflected by the surface of the sealing resin to be directed rearward is emitted from the flat rear end surface 18, passes through the air in the LED support section 7, and is incident on the side transmission section inner layer 15. And then, propagates therein, reaches the conical dents 15a, and is totally reflected by the surface thereof, thereby changing the course to the side of the side transmissive part inner layer 15. the light totally reflected by the portion of the side transmissive part 3 immediately inside passes through the side transmissive part 3, and is emitted to the outside of the illumination apparatus.

A hole for passing a lead wire connected to the contact pin 16 provided on the rear surface of the wiring board is provided in the connection member 19 disposed inside the housing insertion portion 4.

The front part 61 shown in fig. 7 is detachable from the housing in order to replace the battery 52 as shown in fig. 8.

Fig. 9 is a view showing a state where the insertion shaft 24 protruding from the bottom 21a of the housing 21 is inserted into the support member 31 and fixed by the bolt 33, and although the bolt 33 is screwed with the insertion shaft, a shoulder portion of the bolt functions to prevent the rotation shaft support member 43 from coming off, and the rotation shaft support member 43 and the support member 31 are rotatable around the insertion member 24 and the bolt 33.

Fig. 10 is a sectional view seen from the X direction of fig. 9. As shown in fig. 10, an engaging member 25 is fixed to an insertion shaft 24 protruding from the bottom of the housing so as to be aligned with the axial center, and is formed of 3-stage partial circular ring portions lacking a part of the circular ring, and support portions are extended radially from the insertion shaft 24 and connected to the partial circular ring portions, and concave and convex grooves are formed in both end portions outside the partial circular ring portions in the thickness direction and engage with concave and convex grooves provided on the inner peripheral surface of an insertion recess of a rotation shaft support portion 43 of the support member 31. That is, the support portion 31 can be rotated about the rotation shaft 33 with continued resistance, that is, the rotation can be realized by repeating engagement and disengagement at small angular intervals. By reducing the uneven patterns on the inner peripheral surface, the angle formed by the illumination device supported by the support member and the support member can be arbitrarily changed, and the state can be maintained by the engagement.

Returning to fig. 9, the fixing band portion 41 will be described, and the fixing band portion 41 is wound around the mounting object portion via the band 44, the member suitable for the mounting object, and the band fixing member 45, and fixes the lighting device. First, a portion where the belt 44 is disposed will be described. An opening is provided at the upper part of the part where the rotary shaft 49 of the wedge is provided, and the bottom of the housing is exposed from the opening, and the belt 44 is passed through the gap between the rotary shaft 49 of the wedge and the housing exposed in the opening, and the portion overlapped in the reciprocating manner is fixed by the belt fixing member 45. The reciprocating part adjusts a length of the tape wound on the mounting object. The other end of the belt is inserted through a gap between the rotating shaft 47 to which the lever stopper 42 is rotatably attached and the housing. The lever stopper 42 has a belt pressing portion 42a having a maximum distance from the rotating shaft 47 to the outer peripheral surface. When the lever is operated so that the maximum value portion is positioned to face the housing, the gap between the housing and the lever stopper is minimized. When the gap is minimized, the belt is clamped by the housing and the belt pressing portion 42a, and the belt can be fixed.

Fig. 11 is a wiring diagram showing an electrical system of the lighting device incorporating the switch. In this wiring pattern, a portion 61 including the LED8 corresponds to the front portion in fig. 8, and a portion 62 including electronic components such as the battery 52 corresponds to the housing and the portion 62 accommodated therein in fig. 6. If the front part 61 in fig. 8 is inserted into the housing part 62 to be electrically connected, the parts 61 and 62 in fig. 11 are electrically connected. The reed contact switch 51b is opened and closed by the operation of the switch operation portion 51 a.

A permanent magnet as a magnetomotive force which operates in an interlocking manner is attached to the switch operation portion 51a, and a soft magnetic piece of an elastic body is disposed in the reed contact switch 51b of the circuit so as to be in a closed state with a gap from the fixed soft magnetic body. When the switch operating portion 51a is moved to move the permanent magnet, the soft magnetic sheet is magnetized to eliminate the gap between the soft magnetic sheet and the fixed soft magnetic sheet, thereby forming a closed magnetic circuit. That is, the soft magnetic sheet is brought into contact with the other fixed soft magnetic sheet by magnetic force, and the reed contact switch 51b is turned on.

In fig. 11, a predetermined correspondence relationship may be provided between the lighting system of the LED and the switching operation in the IC circuit 65. For example, when the switch is turned off in an initial state, no current is supplied to the LED, and the LED is turned off, then, when the switch 51 is moved to close the contact and then returned to the closed state, current is supplied to the LED to turn on the LED, and further, when the switch is moved to return to the closed state, current is supplied to the LED at a constant cycle to turn on the LED.

By using the above-described illumination device, not only light having a high directivity can be emitted forward, but also light can be transmitted from the side portion.

Embodiments of the present invention will be described below in a list including the above-described embodiments.

The optical path converting unit may be a light guide formed of a material having a higher refractive index than air, and may be configured as follows: the light emitted from the light emitting diode is incident on the light guide at an end portion on the light emitting diode side, is totally reflected, changes the traveling direction of the light, and is emitted from the emission surface of the light guide to the side transmission portion. In the above embodiment, the transmissive portions are provided on the side transmissive portions over the entire circumference of the side portion, but the transmissive portions may be arranged over the entire circumference at a predetermined angular pitch without being continuously provided over the entire circumference.

According to this configuration, light emitted from the light emitting diode to, for example, the rear side can be effectively utilized and emitted from the side peripheral portion to the side surface, and the shape of each portion is formed and arranged so that a substantial part of light directed toward the emission surface of the light guide is incident on the emission surface at an incident angle smaller than the critical angle of total reflection.

The optical path converting unit may be a reflecting member, and may be configured to reflect light emitted from the light emitting diode and emit the light to the side peripheral transmitting unit.

As described above, even when the reflecting member is used, the traveling direction of light coming to the rear of the light emitting diode can be changed to the side portion, and light can be emitted from the side peripheral portion.

The light emitting diode may be configured such that a transparent material having a refractive index higher than that of air seals the light emitting section in a shell shape, a front portion of the transparent radiation window side is formed into a convex curved surface, a rear end thereof is flat, and the rear end is exposed to the optical path converting section.

According to this configuration, when the optical path converting unit is configured by the light guide, if the light guide incident portion facing the flat rear end is made flat, the light emitted rearward from the light emitting diode can be incident on the light guide without waste.

The light emitting unit may be configured to include a reflector having a concave curved surface, the reflector having an insertion hole into which the light emitting diode is inserted, and surrounding the light emitting unit from behind in a state where the light emitting diode is inserted and the wiring is formed.

With this configuration, the light distribution directivity in the forward direction can be improved.

A plurality of the light emitting diodes may be arranged, the concave curved surface reflector may be provided on each light emitting diode, and each reflector into which the light emitting diode is inserted may be configured not to exceed an intersection line intersecting with an adjacent reflector.

By using a concave curved reflector for each of the plurality of light emitting diodes, light distribution with high forward directivity can be obtained while securing high luminance, and the plurality of light emitting diodes may be any number of 2 or more.

The pin for injecting current into the light emitting part is led out from the rear end of the light emitting diode, and the lead wire connected to the pin may be connected to the battery located behind the side peripheral transmitting part through the position of the light path converting part.

The pin and the wire can be thin, and according to the above configuration, the pin and the wire hardly cause an obstacle to light from the light emitting diode to the side peripheral transmitting portion. Unlike an electric bulb, a light emitting diode does not require an opaque sealing portion, a lamp socket, and the like, and only the pins and the like are opaque portions, and the pins and the like do not obstruct light, so that rearward light emission can be effectively utilized.

May also include: an insertion shaft protruding to intersect with the housing at a side portion of the housing on a center side of the side transmission portion; a rotary clamping component which is fixed on the insertion shaft, has a concave-convex groove on the periphery and is a rotary plate crossed with the insertion shaft; and a support member which is inserted into the insertion shaft, has a concave-convex groove at an inner periphery thereof for engaging with the concave-convex groove at the periphery of the rotating engagement member, and is capable of rotating around the rotating engagement member while engaging with the concave-convex portion of the rotating engagement member.

By reducing the scale of the concave-convex groove, the front projection window can be oriented in a desired angular direction, and the direction can be maintained by the engaging force of the engaging groove.

A support member for supporting the lighting device is provided on a side peripheral portion (bottom portion) of the housing, the support member having a fixing tape for fixing the lighting device to the mounting object portion with a tape, the fixing tape comprising: the lighting device is fixed to the mounting object part by winding a tape part between the 1 st and 2 nd tape pulling parts into the mounting object part. A1 st shaft is provided on the 1 st belt hanging part at a 1 st interval from the housing, and a wedge brake is provided, the wedge brake being rotatably provided on the 1 st shaft and biting into a saw-tooth groove provided on one end of the belt, and the one end of the belt passes through the 1 st gap, so that the saw-tooth groove is arranged to wind the 1 st shaft in a manner facing the 1 st shaft. The 2 nd tape pull-up portion is provided with a 2 nd shaft spaced from the housing by a 2 nd distance, and a lever stopper which is rotatably provided on the 2 nd shaft and includes a lever portion and a tape pressing portion, the tape pressing portion has a peripheral edge portion having a maximum distance from the 2 nd shaft, and the other end portion of the tape inserted into the 2 nd gap is held and fixed between the peripheral edge portion having the maximum distance and the housing by pulling down the lever portion.

With the above configuration, the lighting device can be easily and firmly fixed to the mounting object portion with the tape.

And a switch operating part which is positioned on the side peripheral part of the casing at the end part opposite to the front projection window, wherein the switch operating part is static under the state that force, such as elastic force, is applied to the switch operating part in the circumferential direction in one direction, and if the switch operating part is made to slide in the circumferential direction opposite to the circumferential direction in one direction against the applied force, a magnet connected with the switch operating part moves close to a reed contact switch in the casing. The reed contact switch is provided with: a switch terminal includes a soft magnetic sheet having a degree of freedom of deformation to the extent that the switch terminal operates, and a fixed soft magnetic portion to which the soft magnetic sheet is connected. When the magnet is moved closer to the soft magnetic sheet by the movement of the switch operation portion, the soft magnetic sheet is magnetized and elastically deformed to come into contact with a fixed soft magnetic portion disposed closer to the soft magnetic sheet, thereby forming a closed magnetic circuit. The open/close contact part is brought into an on state by the formation of the closed magnetic path.

According to the above configuration, the switch can be formed in a simple structure with a small number of parts. As a result, a highly reliable lighting device that is less likely to malfunction can be provided at low cost.

Although the present invention has been described in detail, this is by way of illustration only, and not by way of limitation, and should be construed as: the spirit and scope of the invention are to be limited only by the appended claims.

Claims (5)

1. An illumination device mounted on a housing (21), comprising:

a light emitting diode (8) positioned at one end of the housing of the lighting device, namely the front part; and

a side transmission part (3) which exposes the surface between the basket body and the side cover behind the light emitting diode and transmits light from the side part; and

an optical path conversion part (15, 15a) which is positioned at the rear side of the light emitting diode, changes the direction of the light emitted from the light emitting diode and emits the light to the side transmission part,

the light path converting part is a light guide (15, 15a, 15b) formed of a material having a higher refractive index than air, and emits light emitted from the light emitting diode to the side transmitting part (3) from an emission surface (15b) of the light guide by making the light enter the light guide at an end part of the light guide on the light emitting diode side and totally reflecting the light to change the traveling direction of the light,

the pins (9) of the light emitting diodes are led out from the rear, pass through the light guide, and are connected to a wiring board (12) located behind the light guide.

2. The lighting device according to claim 1, comprising a reflector (5) having a concave curved surface, the reflector having an insertion hole (6) into which the light emitting diode is inserted, and surrounding a light emitting portion of the light emitting diode from behind in a state where the light emitting diode is inserted and wired.

3. The lighting device of claim 1, comprising: an insertion shaft (24) protruding in the side portion of the housing on the center side of the side transmission portion (3) so as to intersect with the housing; a rotary engaging member (25) fixed to the insertion shaft and having a concave-convex groove on the periphery and a rotary plate intersecting the insertion shaft; and a support member (43) which is inserted into the insertion shaft, has a concave-convex groove at the inner circumference for engaging with the concave-convex groove at the periphery of the rotary engaging member, and can rotate around the rotary engaging member while engaging with the concave-convex groove of the rotary engaging member.

4. The lighting device according to claim 1, wherein a support member for supporting the lighting device is provided on a side peripheral portion of the housing, the support member includes a fixing tape (41) for fixing the lighting device to an attachment target portion with a tape, and the fixing tape includes: a 1 st band hanging part and a 2 nd band hanging part for hanging and overlapping a band for fixing the lighting device on the installation object part, wherein the band part between the 1 st and the 2 nd band hanging parts is winded into the installation object part to fix the lighting device on the installation object part,

a 1 st shaft is provided on the 1 st belt hanging part at a 1 st interval from the housing, and a wedge brake is provided, the wedge brake is rotatably provided on the 1 st shaft (49) and is engaged in a sawtooth groove provided on one end of the belt, the one end of the belt is arranged to pass through the 1 st gap and wind the 1 st shaft facing the 1 st shaft,

the 2 nd belt drawing part is provided with a 2 nd shaft (47) spaced from the housing by a 2 nd interval, and a rod brake (42) rotatably provided on the 2 nd shaft and including a rod part and a belt pressing part (42a), the belt pressing part (42a) is provided with a peripheral part having a maximum distance from the 2 nd shaft (47), and the other end part of the belt inserted into the 2 nd gap is clamped and fixed between the peripheral part having the maximum distance and the housing by pulling down the rod part.

5. The lighting device according to claim 1, comprising a switch operation portion (51a) located on a side peripheral portion of the housing at an end portion on an opposite side to the front portion, wherein the switch operation portion is stationary in a state where an elastic force is applied in a circumferential direction in one direction, and if the switch operation portion is slid in the circumferential direction opposite to the circumferential direction in the one direction against the elastic force, a magnet coupled to the switch operation portion moves in the switch portion inside the housing to come close to a soft magnetic sheet provided on the switch portion and freely deformed, and a fixed soft magnetic portion arranged close to the soft magnetic sheet is brought into contact with the soft magnetic sheet to form a closed magnetic circuit, thereby bringing the switch contact portion into an on state.