JP5142018B2 - Lighting device - Google Patents

Description

  The present invention relates to an illuminating device such as an emergency light using a semiconductor light emitting element such as a light emitting diode as a light source.

  As this type of lighting device, particularly an emergency light, for example, as disclosed in Patent Document 1, a ceiling-mounted emergency light with an improved structure of an operation part of an inspection switch has been proposed. For example, Patent Document 2 proposes a ceiling-embedded emergency light with improved versatility.

  Furthermore, in recent years, LED lighting fixtures and LED emergency lights have been proposed that use a light-emitting diode as a light source and are combined with a lens so that light emitted from the light-emitting diode is directed in a predetermined direction (for example, Patent Documents). 3).

  On the other hand, since this kind of emergency light is used at the time of a power failure, it cannot be lit brightly unlike a general lighting fixture that uses a battery as a power source and brightens a room. Normally, this type of emergency light is required to have a brightness of 1 lx or more. For this reason, it is required to use the light from the light source without loss.

In addition, it is also a lighting device that is not normally used, and when installed on the ceiling, etc., in order to install it so that it does not stand out without destroying the atmosphere of the room, it is necessary to eliminate the downsizing of the equipment and the appearance design problem Has become an important issue. At the same time, cost reduction by downsizing is also important so that it can be used easily in ordinary households.
Japanese Utility Model Publication No. 6-5012 JP 2004-185875 A JP 2007-234403 A

  The emergency light shown in Patent Document 1 is a ceiling-mounted emergency light, the light source part is composed of a mini-halogen lamp and a reflector, and parts such as batteries and inspection switches are housed in the space around the reflector. ing. In particular, when the monitor and the inspection switch are provided in the reflecting plate or pulled out through the reflecting surface of the reflecting plate, these components block the light from the lamp and cause a light loss. For this reason, it is configured to avoid the reflector and to face outward from the space around the reflector via the frame member. As a result, a space for accommodating these components is inevitably required around the instrument body, which increases the diameter of the instrument and hinders downsizing. In addition, the region of the frame member that is conspicuous in appearance is increased, and there is a problem that the design property is also lowered.

  The embedded emergency light shown in Patent Document 2 also has the same problem as the direct mounting type, and the inspection switch is configured by being pulled out from the frame portion (decorative frame).

  The emergency light shown in Patent Document 3 is composed of a light source diode and a lens body without using a reflector, and can solve the obstacles for miniaturization by the reflector. A lower cover (decorative frame) is provided so as to cover the light source, and an opening having a size substantially equal to the emission surface is formed on the lower cover so as to face the emission surfaces of the three light sources.

  For this reason, a part of the light from the light source is blocked by the inner surface of the lower cover, and internal reflection loss is likely to occur. In addition, the monitor and check switch pull cords face outward through the lower cover, which may block lateral light from the light source. In particular, a shadow is projected to block light at a position close to the light source, and a dark part is easily formed.

  An object of this invention is to provide the illuminating device which can be reduced in size and it is hard to generate | occur | produce an optical loss.

The invention of the lighting device according to claim 1 includes an instrument body having an opening at one end; a frame member covering the periphery of the opening; a light source composed of a semiconductor light emitting element, and an arrangement disposed facing the light source. A light control means, and the light distribution control means is provided in the instrument main body so as to be positioned in the opening, and a cover member that covers substantially the entire opening of the frame member is integrally formed, and light is applied to the entire inner surface. a light source unit which has been subjected to spreading processing; and a battery disposed within the instrument body; lighting apparatus and to a DC voltage input from the battery by lighting the light source; the state of charge of the battery is displayed by the lighting state, outwardly A notifying means that is housed in the instrument body without protruding and disposed opposite the surface of the light distribution control means that has been subjected to the light diffusion process ; and confirms that the light source is lit and operated. part is and the light source in the opening of the instrument body Characterized by comprising a; and test switch is disposed is positioned on the frame member side than the light radiation angle.

  The illuminating device of the present invention can be reduced in size by eliminating the obstacle for downsizing by the reflector by the light source unit having the light source composed of the semiconductor light emitting element and the light distribution control means arranged facing the light source. It becomes.

In addition, by the operation part of the inspection switch arranged in the frame member side from the light emission angle of the light source and the light emitting angle of the light source and the informing means stored in the instrument body without protruding outward , Generation of optical loss can be made difficult.
In addition, the light distribution control means is provided in the instrument main body so as to be positioned in the opening, and integrally forms a cover member that covers substantially the entire opening of the frame member, and performs light diffusion treatment on the entire inner surface, Since the notification means is disposed opposite to the light-diffused surface side of the light distribution control means, the entire cover member emits light uniformly and uniformly when the notification means is lit. As a result, the state of charge of the battery can be displayed reliably on the surface instead of the conventional point display, and it is easy to see, and the accent illumination with the entire cover member emitting light can be performed, and the appearance design is also excellent A lighting device can be provided.

  In the present invention, the lighting device is preferably an emergency light used at the time of a power failure. However, the lighting device is not limited thereto, and is applied to all indoor and outdoor lighting devices using a battery as a power source. Moreover, even if it is an embedded illuminating device, the illuminating device installed by other installation means, such as a direct attachment type and a ceiling-suspended type, may be sufficient.

  The instrument body may be configured as a cylindrical case member having an opening at one end, may be configured as a rectangular tube, or may be configured by a frame body, and has an opening at one end. All body components are allowed. The material may be composed of a metal such as iron, stainless steel, or aluminum, or may be composed of a nonflammable synthetic resin.

  As the semiconductor light emitting element, a light emitting element using a semiconductor as a light emitting source, such as a light emitting diode, an EL (electroluminescence) element, or a semiconductor laser, is allowed. The semiconductor light emitting element may be configured by arranging one semiconductor light emitting element on a substrate, or may be configured as a line module by arranging a plurality of semiconductor light emitting elements in a straight line or a curve. The light emitting elements may be arranged in a matrix shape so as to form a rectangular shape, or may be configured in a disk shape so as to form a point module with a plurality of semiconductor light emitting elements. The shape etc. which are arrange | positioned are not limited to a specific thing.

  The light distribution control means is a light control body for obtaining light distribution characteristics necessary for the lighting device, and a lens body formed of a transparent glass or a synthetic resin such as acrylic is allowed.

  The light source part is composed of a light source composed of a semiconductor light emitting element and a light distribution control means such as a lens body, but it does not exclude those provided with a reflector, and a reflector having a function that does not hinder downsizing is provided. There is no problem.

  The frame member may be an outer case member that covers the outer surface of the device in the case of a direct-attached device, or may be a decorative frame for closing an installation hole such as a ceiling in accordance with an embedded device. In short, all the members for covering the periphery of the opening of the light source part and the opening of the tool body are allowed, and the material is made of metal such as iron, stainless steel, aluminum, etc. Or you may comprise with a nonflammable synthetic resin. The instrument body and the frame member may be made of the same material or different materials. The instrument body and the frame member may be formed integrally or separately.

  The lighting device is preferably disposed in the instrument body, but may be configured so that it can be placed separately.

The notification means displays the state of charge of the battery by the lighting state, and it is suitable for downsizing by a monitor made of a semiconductor light emitting element such as a light emitting diode. There may be. The notifying means is housed in the instrument body without protruding outward, and is disposed at a position that does not block the light emitted from the light distribution control means such as the lens body. For example, the tip of the monitor and the lens body It may be configured with a means that is the same height as the tip of the lens, or with a means for lowering the tip of the monitor, or may be configured with a means that is disposed avoiding the range of the emission angle of light emitted from the lens body. .

The inspection switch confirms that the light source is lit, and the operation portion is preferably a pull string, but may be a push-type push button or a seesaw-type button. The operation part of the inspection switch is arranged in the opening of the instrument body and on the frame member side with respect to the light emission angle of the light source , and is in a position that does not block the light emitted from the light distribution control means such as the lens body. For example, the height of the tip of the push-type push button and the tip of the lens body may be the same, or the tip of the push button may be configured to be lower.

  In the present invention, the light distribution control means is integrally formed with the cover member. For example, it is preferable that the light distribution control means is integrally formed of glass or the like. What is necessary is just to have the function which can introduce | transduce the light of an alerting | reporting means.

  For the light diffusion treatment, for example, a means for forming a concave portion or a convex portion on the surface of the cover member by frost processing or embossing is suitable, but the light of the notification means is diffused to make the cover member shine. All means are allowed.

According to a second aspect of the invention, in the illumination apparatus according to claim 1, wherein the notification means is a semiconductor light emitting element, a semiconductor light emitting element of the light source unit and the semiconductor light emitting element of the notification means are implemented on a common substrate It is characterized by.

According to the first aspect of the present invention, the light source unit having the light source composed of the semiconductor light emitting element and the light distribution control means disposed opposite to the light source eliminates the obstacle for miniaturization by the reflector and reduces the size. Can be realized.
In addition, by the operation part of the inspection switch arranged in the frame member side from the light emission angle of the light source and the light emitting angle of the light source and the informing means stored in the instrument body without protruding outward , It is possible to provide an illuminating device capable of achieving downsizing and making it difficult to cause light loss due to the notification unit and the operation unit of the inspection switch .
In addition, the light distribution control means is provided in the instrument main body so as to be positioned in the opening, and integrally forms a cover member that covers substantially the entire opening of the frame member, and performs light diffusion treatment on the entire inner surface, The notifying means is disposed opposite to the light-diffused surface side of the light distribution control means, so that the cover member as a whole is turned on when the notifying means is turned on, that is, using the light of the notifying means. Is bright and emits light uniformly. As a result, the state of charge of the battery can be displayed reliably on the surface instead of the conventional point display, and it is easy to see, and the accent illumination with the entire cover member emitting light can be performed, and the appearance design is also excellent A lighting device can be provided.

According to the second aspect of the present invention, the notifying means is a semiconductor light emitting element, and the semiconductor light emitting element of the light source unit and the semiconductor light emitting element of the notifying means are mounted on a common substrate. It is possible to provide a lighting device that can be mounted on a single substrate and configured as a single assembly component, can be assembled easily and efficiently, and is advantageous in cost.

  Hereinafter, an embodiment of a lighting device according to the present invention will be described.

  In this embodiment, an embedded emergency light installed on the ceiling is constructed. As shown in FIGS. 1 and 2, the emergency light 10 includes an instrument body 11, a light source 12, and a light distribution control means 13. The light source part 14 which has, the frame member 15, the battery 16, the lighting device 17 which lights a light source, and the alerting | reporting means 18 which displays the charge condition of a battery are comprised.

  The instrument body 11 is made of aluminum die casting and is configured as a cylindrical case member having an opening portion 11a at one end, the light source portion 14 is disposed in the opening portion, and the battery 16 and the lighting device 17 are accommodated in the cylindrical case. Arranged.

  A frame member 15 having a function of a decorative frame is fitted into the opening 11a of the appliance main body 11, and the periphery of the opening is covered. The frame member 15 is made of aluminum die-cast as in the case of the instrument main body, and includes a frame part 15 a having a substantially L-shaped cross section and an opening 15 b formed inside the frame. The frame part 15 a is formed in the opening part 11 a of the instrument main body 11. Is fixed and supported and fixed by a fixing means such as a screw from the side.

  The light source unit 14 includes a light source 12 and a light distribution control means 13. The light source is composed of a semiconductor light emitting element, in this embodiment, a light emitting diode 12 (hereinafter referred to as “LED”). In this embodiment, the LED 12 is white by a blue LED chip and a yellow phosphor excited by the blue LED chip. The LED 12 emits light mainly in one direction, that is, in the direction of the optical axis oo of the LED. A plurality of LEDs 12, four in this embodiment, are prepared. The LEDs 12 are arranged and mounted at substantially equal intervals along a circle having the same radius on a substrate 12 a made of a disk-shaped circuit substrate and supported.

  As shown in FIG. 2, the light distribution control means is composed of a glass lens body 13 having a circular dish shape having an entrance surface 13a and an exit surface 13b, and a recess 13c is formed at the center of the entrance surface, and the exit surface On the inner surface of the surface 13b, a large number of ring-shaped concavo-convex portions 13d having concavities and convexities are formed in a substantially concentric manner. Four lens bodies having this configuration are prepared corresponding to each LED.

  The lens body 13 is integrally formed with a cover member 13e that serves as a disk-shaped light guide plate having substantially the same diameter as the substrate 12a of the LED 12, and the four lens bodies 13 have a disk-shaped cover. It is integrally formed by being arranged at substantially equal intervals along a circle having the same radius on the member. The radius of the circle in which the lens body 13 is arranged and the circle in which the LED 12 is arranged are the same or substantially the same. Thus, the LED 12 is housed in the concave portion 13c that is the incident surface of the lens body 13 by overlapping the circular cover member 13e integrated with the lens body 13 and the substrate 12a of the LED 12. At this time, the optical axis oo of each LED 12 and the optical axis xx of each lens body 13 are arranged so as to substantially coincide.

  The substrate 12a of the LED 12 and the cover member 13e of the lens body 13 configured to overlap with each other are assembled together by a fixing means such as a screw to form a light source unit 14 composed of the LED 12 that is a light source and the lens body 13. .

  The diameter dimension of the substrate 12a of the LED 12 constituting the light source unit 14 and the cover member 13e of the lens body 13 is substantially equal, and has a diameter dimension that covers the entire opening 15b of the frame member 15 and covers the cover. The member 13e is fitted into a step portion 15c formed on the inner surface of the opening 15b of the frame member 15, and the entire light source unit 14 is fixed to the frame member 15 by fixing means such as adhesion, and the light source unit 14 is attached to the instrument body 11 via the frame member. Supported by In this state, the distal end portion of the exit surface 13b of the lens body is configured such that the distal end portion of the lens body protrudes from the outer surface of the frame member 15, a predetermined dimension a from the lower surface in the present embodiment, and approximately 3 mm in the present embodiment. (FIG. 3).

  In addition, in a substantially central portion of the substrate 12a constituting the circuit board on which the LED 12 is mounted, a notification means, in this embodiment, a monitor 18 made of a bullet-shaped green LED, has a light emitting portion on the outer surface, and in this embodiment, a lower surface. It is mounted by protruding from it. Thereby, LED12 of the light source part 14 and LED of the monitor 18 are mounted in the common board | substrate 12a. In addition, a circular through hole 13f is formed in a substantially central portion of the cover member 13e, and a protruding light emitting portion of a bullet-shaped LED is inserted.

  An inspection switch 20 is mounted on the outer peripheral portion of the substrate 12a constituting the circuit board on which the LED 12 is mounted. A through hole 13h is formed in the cover member 13e at a position facing the inspection switch. The operation portion 20a composed of a push button is inserted so that the tip of the operation portion 20a protrudes from the outer surface of the cover member 13e, in this embodiment, the lower surface, and can be operated from the outside. As a result, the LED 12 of the light source unit 14, the LED of the monitor 18, and the inspection switch 20 are mounted on a common substrate 12a.

  The monitor 18 and the inspection switch operating portion 20a configured as described above are disposed in the opening 15b of the frame member 15 and at a position where the light emitted from the lens body 13 of the light source portion 14 is not blocked. That is, the height dimension of the lens body 13 protruding from the outer surface of the cover member 13e is smaller than the height dimension b of the lens body 13 protruding from the outer surface of the cover member 13e. Try not to block the light emitted from the side as much as possible.

Furthermore, in this embodiment, the light distribution angle R1 at which light is emitted from the lens body 13, in this embodiment, a range of 60 ° left and right (120 ° in total) around the optical axis xx of the lens body 13, In FIG. 2, the monitor 18 and the operation unit 20 a of the inspection switch 20 are not positioned in the shaded portion, and are disposed on the frame member 15 side to block light emitted from the lens body 13 of the light source unit 14. Do not.

  In addition, the monitor 20 and the operation portion 20a of the inspection switch 20 are provided in the opening 15b of the frame member 15 without facing the reflector plate from the space around the reflector plate and avoiding the reflector plate. It is arranged and configured. Thereby, it is not necessary to increase the diameter of the instrument main body 11 in order to accommodate the monitor 18 and the operation part 20a of the inspection switch 20, and the instrument main body is made small.

  Incidentally, as shown in FIG. 3, the emergency light 10 configured as described above has a diameter dimension D1 of the frame member 15 to be a decorative frame of about 85 mm, a diameter dimension D2 of the instrument body 11 of about 75 mm, and a power consumption of 5 W. It is configured as a small emergency light driven by AC100V.

  Further, the battery 16 and the lighting device 17 that turns on the light source by the battery are disposed and housed in the cylindrical case of the instrument body 11 so as to be sequentially positioned above the light source unit 14 and supported by the support member 11b.

  In the figure, reference numeral 21 denotes a support for supporting the instrument main body 11 on the installation surface T such as a ceiling, which is composed of two substantially L-shaped leaf springs formed by pressing a stainless steel plate material. The vertical portion is positioned on the outer surface of the instrument body 11 so as to face the radial direction and fixed with screws or the like.

  The support 21 made of the leaf spring is inserted into the installation hole X of the ceiling surface T together with the instrument body 11 while being bent inward, and after insertion, the support 21 is restored to its original state by its own elasticity. The instrument main body 11 is fixed to the ceiling surface T by pressure contact with the inner surface of the installation hole (FIG. 3). In the case of removal, the reverse operation is performed.

  The lighting device 17 is provided in the lighting unit 30 as shown in FIG. The lighting unit is further provided with a charging circuit 31 and a switching circuit 32, and an inspection switch 20 and a monitor 18 for charging display are provided. Then, power lines 35 and 35 connected to the charging circuit 31 are led out, and the power lines are connected to a commercial AC power source Vs via power terminals 36 and 36. Moreover, lead wires 37 and 37 electrically connected to the charging circuit 31 or the lighting device 17 are led out, and the lead wires are connected to the battery 16 via the connector 38 and the fuse F1. Furthermore, lamp lines 39 and 39 connected to the lighting device 17 are led out, and the lamp line is connected to each LED 12 of the light source unit 14.

  The charging circuit 31 is configured to charge the battery 16. When the battery is charged, the charge display monitor 18 is turned on. The switching circuit 32 is configured so that the battery voltage is input to the lighting device 17 so that the battery 16 and the lighting device 17 are connected during a power failure. Further, when the operation unit 20 a of the inspection switch 20 is pressed, the inspection switch 20 connects the battery 16 and the lighting device 17. Thereby, it is confirmed that each LED 12 is lit during a power failure.

  As shown in FIG. 3, the emergency light 10 configured as described above is installed along a ceiling surface T such as a hallway or a passage with a plurality of spaces embedded therein.

  That is, a circular installation hole X is formed in advance at a predetermined position on the ceiling surface T. At this time, as described above, the instrument body 11 is configured to be small with the diameter D2 of the instrument body 11 being only about 75 mm.

  Next, wiring connection is made to the commercial AC power supply Vs via the power supply terminals 36 and 36. Next, in the state where it is wired to the commercial AC power supply Vs as described above, the support 21 made of a leaf spring of the instrument main body 11 is bent inward by hand and inserted into the installation hole X together with the instrument main body, and the frame member 15. The upper surface of the L-shaped frame portion 15a is brought into contact with the ceiling surface T to determine the position. Release the support 21 with the position determined. As a result, the leaf spring returns to its original state due to its own elasticity and is pressed against the inner surface of the installation hole X, and the instrument main body 11 is fixed to the ceiling surface T by the pressing force. The cut end of the installation hole X is neatly covered with a frame member 15 that acts as a decorative frame.

  In the state of being installed as described above, the instrument main body 11 is installed so as to be positioned on the center line in the longitudinal direction of the corridor or the passage, and the exit surface 13b of the lens body 13 of each light source unit 14 faces downward, that is, on the floor surface. In addition, the monitor 18 and the operation unit 20a of the inspection switch 20 face the floor surface.

  Next, the operation of the emergency light 10 constructed and installed as described above will be described. When a power failure occurs, a direct current voltage is input from the battery 16 to the lighting device 17, each LED 12 of the light source unit 14 is turned on, and the floor surface of the illumination area along the longitudinal direction of each corridor or passage from both sides of the fixture body 11 is displayed. Illuminated. At this time, the front end portion of the exit surface 13b of the lens body 13 protrudes from the lower surface of the frame member 15 to a predetermined dimension a, which is about 3 mm in this embodiment, so that light is blocked by the frame member 15 forming the decorative frame. In addition, the illumination can be reliably performed indoors.

  At the same time, the operation unit 20a of the monitor 18 and the inspection switch 20 is located within the opening 15b of the frame member 15 and does not block the light emitted from the lens body 13 of the light source unit 14, that is, the cover member 13e of the lens body 13. The operating portion 20a of the monitor 18 and the inspection switch 20 makes the height dimension protruding from the outer surface of the cover member 13e smaller than the height dimension b protruding from the outer surface, and light is emitted from the lens body 13. Since the radiation angle R1 and the operation portion 20a of the monitor 18 and the inspection switch 20 are not located in the hatched portion in FIG. The emitted light is not blocked. Thereby, predetermined brightness can be ensured sufficiently and surely with the brightness of 11x or more required as an emergency light.

  Further, in normal times, the monitor 18 formed of a bullet-shaped green LED is turned on to display the charging state of the battery 16.

  It should be noted that the heat generated from the battery 16 housed in the appliance body 11, the electrical components of the lighting device 17, and the LED 12 of the light source unit 14 is effectively dissipated to the outside through the appliance body made of aluminum. The reliability of parts can be increased. In particular, illumination with a predetermined illuminance can be reliably performed over a long period of time without the luminous flux of each LED decreasing due to temperature rise.

  As described above, according to the emergency light 10 of the present embodiment, the monitor 18 and the operation unit 20a of the inspection switch 20 are exposed outwardly from the space around the reflector plate through the frame member, avoiding the reflector plate as in the prior art. Since it is arranged and arranged in the opening 15b of the frame member 15, it is not necessary to increase the diameter of the instrument body 11, and the instrument can be reduced in size, without destroying the atmosphere of the installation environment. An emergency light that is excellent in appearance design and advantageous in cost can be provided.

  The distal end portion of the exit surface 13b of the lens body 13 is configured to protrude from the lower surface of the frame member 15 by a predetermined dimension a, about 3 mm in this embodiment, so that light is not blocked by the frame member 15 forming the decorative frame. The lighting in the longitudinal direction of the corridor or the passage can be effectively performed. Further, as in the prior art, it is possible to provide a high-efficiency emergency light in which a part of light from the light source unit is not blocked by the inner surface of the lower cover of the instrument body and no internal reflection loss occurs.

  The height of the monitor 18 and the operation portion 20a of the inspection switch 20 protruding from the outer surface of the cover member 13e is smaller than the height dimension b of the lens body 13 protruding from the outer surface of the cover member 13e. The light emitted from the 13 side surfaces is not blocked, and a predetermined brightness can be ensured sufficiently and reliably.

  Since the monitor 18 and the operation portion 20a of the inspection switch 20 are disposed on the frame member 15 side so as not to be located within the radiation angle at which light is emitted from the lens body 13, they are radiated from the side surface of the lens body 13. Therefore, the predetermined brightness can be ensured sufficiently and reliably.

  Since the light source unit 14 is formed by integrally forming the four lens bodies 13 with the disc-shaped cover member 13e and further superposing the substrate 12a on which the four LEDs 12 are mounted, the optical component is integrated. Therefore, the optical system is less likely to be out of order, and a high-performance emergency light can be provided. In particular, since the four lens bodies 13 are simultaneously formed by integral molding together with the cover member 13e, it is further advantageous in terms of cost.

  Since the LED 12, the monitor 18, and the inspection switch 20 as the light source are all mounted on the board 12a made of a single circuit board, it can be configured as a single assembly part, and the assembly work is easy and efficient. This is advantageous in terms of cost.

  As described above, the ceiling-embedded emergency light is configured in the lighting device of the present embodiment. However, as shown in FIG. 5, a direct-mounted emergency light may be configured. That is, the monitor 18 and the operation unit 20a of the inspection switch 20 are disposed in the opening 15b of the outer case member 15 made of a frame member, and further, the light emitted from the lens body 13 of the light source unit 14 is emitted in the same manner as described above. It is positioned so as not to block.

  The monitor 18 is composed of a bullet-shaped green LED and displays the charging state in green. However, other colors such as red, blue, and yellow may be emitted and displayed. The LED is not limited to a bullet shape, and may be another type of LED such as a surface mount type.

  The present embodiment is configured so that the monitor, which is the notification means, is housed in the instrument body without protruding outward, and the light emitted from the lens body 13 which is the light distribution control means is not blocked. The configuration will be described with reference to FIG. In FIG. 6, the same parts as those in FIGS. 1 to 5 in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 6, in the emergency light 10 of the first embodiment, a monitor 18 made of a surface-mounted green LED is disposed at a substantially central portion of a substrate 12a constituting a circuit board on which the LED 12 is mounted, and its light emitting portion is a substrate. The outer surface of 12a is mounted without projecting from the lower surface in this embodiment.

  Further, without forming the through hole 13f in the cover member 13e, a conical recess 13i having a substantially triangular cross section is integrally formed in the central portion, that is, the portion where the light of the monitor 18 is introduced. Further, the cover member 13e is subjected to a light diffusion process 13g by forming a concavo-convex part on the entire inner surface on the side facing the monitor 18 by frosting or embossing.

  According to the above configuration, when the monitor 18 is normally turned on, the monitor light is introduced from the conical recess 13i, and the light is reflected and refracted as indicated by the arrows in FIG. When introduced, the entire cover member emits green light. Further, the light hitting the inner surface of the cover member is diffused and introduced by the light diffusion process 13g, and the entire cover member is further brightened and uniformly emits green light.

 Thus, the state of charge of the battery 16 can be displayed reliably on the surface instead of the conventional point display, and it is easy to see, and accent illumination in which the entire cover member emits green light can be performed. In particular, since the light is diffused by the light diffusion treatment 13g of the cover member 13e and good accent illumination can be performed, an emergency light with a more excellent appearance design can be provided.

  According to the present embodiment, since the monitor is housed and disposed in the instrument body without protruding outward, the light emitted from the lens body 13 is not blocked, and thus there is no further loss of light. A light can be provided.

  Also in the lighting apparatus of the present embodiment, a directly attached emergency light may be configured. Other configurations, operations, operational effects, modifications, and the like in this embodiment are the same as those in the first embodiment.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention.

The perspective view which shows the emergency light which concerns on 1st embodiment of this invention. Sectional drawing which follows FIG. 1A-A which similarly shows an emergency light. The side view which cut the part which shows the state which similarly installed the emergency light in the ceiling surface. Similarly the internal wiring diagram of the emergency light. The perspective view which similarly shows the modification of an emergency light. The emergency light which concerns on 2nd embodiment of this invention is shown, (a) is sectional drawing equivalent to FIG. 2, (b) is sectional drawing which expands and shows the principal part of (a).

Explanation of symbols

10 Lighting device (emergency light)
DESCRIPTION OF SYMBOLS 11 Instrument main body 11a Opening part 12 Light source (semiconductor light emitting element)
12a Substrate 13 Light distribution control means 13e Cover member 13g Light diffusion process 14 Light source part 15 Frame member 15b Opening 16 Battery 17 Lighting device 18 Notification means 20 Inspection switch 20a Operation part

Claims (2)

An instrument body having an opening at one end;
A frame member covering the periphery of the opening;
A light source comprising a semiconductor light emitting element and a light distribution control means disposed opposite to the light source, the light distribution control means being provided in the instrument body so as to be located in the opening, and an abbreviation of the opening of the frame member; A light source unit that integrally forms a cover member that covers the entire surface, and that has been subjected to light diffusion treatment on the entire inner surface ;
A battery disposed within the instrument body;
A lighting device that turns on the light source when DC voltage is input from the battery;
An indication that the state of charge of the battery is indicated by the lighting state , is stored in the instrument body without protruding outward, and is disposed opposite to the surface side subjected to the light diffusion process of the light distribution control means. With means;
An inspection switch that confirms that the light source is turned on and that the operation unit is disposed in the opening of the instrument body and on the frame member side of the light emission angle of the light source ;
An illumination device comprising: The lighting device according to claim 1, wherein the notifying unit is a semiconductor light emitting element, and the semiconductor light emitting element of the light source unit and the semiconductor light emitting element of the notifying unit are mounted on a common substrate.

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