JP2008204659A - Illumination device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination device in which spots are hard to be produced in brightness on a light diffusion plate when a plurality of light sources are covered with one light diffusion plate. <P>SOLUTION: The illumination device 1 comprises: an illumination unit 10; a body 2 in which a plurality of illumination units are aligned and disposed; and the light diffusion plate 3 attached to the body. The illumination unit 10 comprises: a cold-cathode fluorescent lamp 11; an inverter 12; a base 13; and a cover 14. As for the cold-cathode fluorescent lamps 11, bending parts 111 are provided in the middle of the illumination device and the shape is such that the end parts 112 are each arranged on one side thereof. The inverter 12 is disposed inside surrounded by the cold-cathode fluorescent lamp 11. The base 13 holds the cold cathode fluorescent lamp 11 and the inverter 12. The cover 14 is formed of a transparent member, and fixed to the base 13 while covering the cold-cathode fluorescent lamp 11 and the inverter 12. The light diffusion plate 3 is continuously formed in a range over a plurality of irradiation regions W of the illumination unit 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an illumination device including a plurality of illumination units each incorporating a cold cathode fluorescent lamp as a light source.

An illumination device including a cold cathode fluorescent lamp as a light source is disclosed in Patent Document 1. This illuminating device is provided with one cold cathode fluorescent lamp formed in a rod shape. There is also an illumination device in which a plurality of cold cathode fluorescent lamps formed in a rod shape are arranged inside. This illuminating device uses a cold cathode fluorescent lamp having a longer service life than a hot cathode fluorescent lamp as a light source, thereby reducing the replacement frequency of the fluorescent lamp and reducing maintenance costs.
JP-A-9-147802 JP 2004-142933 A

  However, as shown in Patent Document 2, when a plurality of rod-like cold cathode fluorescent lamps are arranged, the electrodes are arranged adjacent to each other if the directions are aligned. When a plurality of cold cathode fluorescent lamps are covered with one light diffusing plate, the portion where the electrode portions are adjacent appears to be dark because the amount of light is less than the other portions. The design of the lighting device is also important, and it is preferable that the light diffusing plate has no unevenness in luminance.

  Therefore, the present invention provides an illuminating device in which when a plurality of light sources are covered with a single light diffusing plate, unevenness in the luminance of the light diffusing plate does not easily occur.

  The lighting device according to the present invention includes a lighting unit, a main body in which a plurality of the lighting units are aligned and arranged, and a light diffusing plate attached to the main body. The lighting unit includes a cold cathode fluorescent lamp, an inverter, a base, and a cover. The cold cathode fluorescent lamp has a shape in which a bent portion is provided in the middle and end portions are aligned on one side. The inverter is disposed inside the cold cathode fluorescent lamp and controls lighting of the cold cathode fluorescent lamp. The base holds a cold cathode fluorescent lamp and an inverter. The cover is formed of a transparent member, covers the cold cathode fluorescent lamp and the inverter, and is fixed to the base. The light diffusing plate is continuously provided in a range over a plurality of irradiation areas projected from the illumination unit.

  According to the illuminating device according to the present invention, the end portions of the cold cathode fluorescent lamps incorporated in the illuminating unit serving as the light source have a shape aligned with one side. In the cold cathode fluorescent lamp, the inner part surrounded by the cold cathode fluorescent lamp is folded back to the extent that no unevenness in brightness occurs in the light diffusion plate. The inverter is arranged inside the cold cathode fluorescent lamp. That is, the cold cathode fluorescent lamp is disposed along the outer periphery of the base.

  Therefore, the illumination device can arrange the illumination units so that the distances between the cold cathode fluorescent lamps of adjacent illumination units are equal to each other, so that no unevenness in brightness occurs in the light diffusion plate. And when arrange | positioning an illumination unit in alignment, even if the edge part of the cold-cathode fluorescent lamp of an adjacent illumination unit is located in a line, it can mutually be brought close enough. That is, the illuminating device according to the present invention can provide uniform brightness in the light diffusion plate corresponding to the portion where the end portions of the cold cathode fluorescent lamps are arranged.

  The illuminating device 1 of 1st Embodiment which concerns on this invention is demonstrated with reference to FIGS. 1-5. The illuminating device 1 shown in FIG. 1 is installed in the ceiling 101 of the elevator car 100. Hereinafter, for the convenience of explanation in each embodiment, the left and right sides of the riding rod 100 are defined as the front and rear sides, respectively, and the right and left as viewed from inside the cabin.

  The illumination device 1 includes a main body 2 and a light diffusing plate 3. The main body 2 includes a plurality of lighting units 10 inside. The light diffusing plate 3 is attached to the main body 2 as shown in FIG. 2, and is continuously provided in a plurality of ranges of irradiation areas W projected from the illumination unit 10 serving as a light source.

  The light diffusing plate 3 scatters and diffusely reflects the light emitted from the illumination units 10 to make the brightness of the light projected from each illumination unit 10 uniform. Specifically, a transparent member with a matte surface or a milky white transparent member is applied as the light diffusing plate 3.

  As shown in FIG. 3, each lighting unit 10 includes a cold cathode fluorescent lamp 11, an inverter 12, a base 13, and a cover 14. The cold cathode fluorescent lamp 11 has a bent portion 111 that is bent twice at a substantially right angle in the middle of the glass tube 110 and folded back into a rectangle. Therefore, the end 112 of the glass tube 110 is aligned with one side. In the cold cathode fluorescent lamp 11, the glass tube 110 that is a straight portion in the section between the bent portion 111 and the end portion 112 is linearly parallel with a certain interval that does not cause unevenness in luminance in the light diffusion plate 3. It extends to.

  The electrode of the cold cathode fluorescent lamp is enclosed in the end 112 of the glass tube 110. As shown in FIG. 4, the end 112 is covered with a rubber end support block 113 that is excellent in insulation and heat resistance. Lead wires extending from the electrodes pass through the end support block 113 and are connected to the inverter 12. As shown in FIG. 5, the cold cathode fluorescent lamp 11 is provided with a rubber intermediate support block 114 having heat resistance at a position near the bent portion 111 of the glass tube 110. The end support block 113 and the intermediate support block 114 are an example of an elastic support member for supporting the cold cathode fluorescent lamp 11, and may be made of rubber as long as the glass tube 110 can be protected from vibration and impact. Absent.

  The inverter 12 is a circuit board that turns on the cold cathode fluorescent lamp, and is disposed at a position near the end 112 on the inner side surrounded by the cold cathode fluorescent lamp 11, as shown in FIGS. The base 13 holds the cold cathode fluorescent lamp 11 and the inverter 12. As shown in FIG. 3, the cold cathode fluorescent lamp 11 is arranged along three sides of the outer peripheral edge of the base 13. The base 13 has a support leg 131 for mounting the end support block 113 as shown in FIG. 4, and a mounting portion 132 for mounting the intermediate support block 114 as shown in FIG.

  As shown in FIG. 4, the base 13 includes four seats 133 for installing the inverter 12 at a position near the support leg 131 inside the cold cathode fluorescent lamp 11. Of the two seats 133 sandwiched between the support legs 131, one seat 133 has a hole 134a, and a screw threaded through a hole provided in a corner of the substrate of the inverter 12 is screwed. The remaining three seats 133 each have a convex part 134 b that fits into a hole provided in a corner of the substrate of the inverter 12. The base 13 in a range where the inverter 12 is disposed is recessed in a direction away from the inverter 12.

  The base 13 includes a hook 135 and a column 136 for fixing the cover 14. As shown in FIG. 4, the hook 135 is provided at a corner on the side where the support leg 131 is provided. The support | pillar 136 is provided between the installation parts 132, as shown in FIG. As shown in FIGS. 4 and 5, the base 13 has a fixing part 137 for attaching the illumination unit 10 to the inside of the main body 2 between the support leg 131 and the installation part 132.

  The fixing portion 137 is a so-called dharma-shaped hole having a small diameter portion 137a and a large diameter portion 137b. The small-diameter portion 137a has a size that allows a bolt head used to be fixed to the main body 2 to be hooked, and the large-diameter portion 137b has a size that allows the bolt head to pass therethrough. The directions of the small diameter portions 137a are aligned in the same direction. Therefore, when the illumination unit 10 is removed, it can be easily removed by loosening the bolts fixed to the main body 2 and shifting the illumination unit 10 from the small diameter portion 137a to the large diameter portion 137b. In addition, the fixing | fixed part 137 may be fixed using fasteners other than a volt | bolt. The shape of the fixing portion 137 in this case is made according to the fastener.

  The cover 14 is formed of a transparent member, and completely covers the cold cathode fluorescent lamp 11 and the inverter 12 and is fixed to the base 13. The outer peripheral portion of the cover 14 is fitted with a step provided on the outer peripheral edge of the base 13 as shown in FIGS. On the side where the inverter 12 is disposed, an engagement hole 141 into which the hook 135 is fitted is provided as shown in FIG. Moreover, the cover 14 has the fitting part 142 in the position corresponding to the support | pillar 136, as shown in FIG. When the cover 14 is attached to the base 13, the engagement portion 141 is hooked on the hook 135, and then the fitting portion 142 is aligned with the column 136. The cover 14 is fixed to the base 13 by screws 16 that are screwed into the support pillars 136 through the fitting portions 142 from the outside of the cover 14.

  The cover 14 includes ribs 143 and 144, a protrusion 145, and an insertion hole 146. As shown in FIGS. 4 and 5, the ribs 143 and 144 are provided on the inner surface of the cover 14 corresponding to the end support block 113 and the intermediate support block 114, and extend in a direction crossing the glass tube 110 of the cold cathode fluorescent lamp 11. It extends. As shown in FIG. 4, the end support block 113 is sandwiched between the support leg 131 and the rib 143 by combining the base 13 and the cover 14. As shown in FIG. 5, by combining the base 13 and the cover 14, the intermediate support block 114 is sandwiched between the installation part 132 and the rib 144.

  The protrusions 145 integrally extend from the inner surface of the cover 14 toward the two seats 133 disposed at positions away from the support legs 131. As shown in FIG. 4, when the base 13 and the cover 14 are combined, the protrusion 145 presses the corner portion of the inverter 12 into the seat portion 133. At the tip of the protrusion 145, a hole that fits with the convex portion 134 b of the seat portion 133 is opened.

  The insertion hole 146 is preferably provided coaxially with the center of the small diameter portion 137a corresponding to the fixing portion 137 provided in the base 13 as shown in FIG. The insertion hole 146 may have a size and a shape that allow a fastener to be attached to the fixing portion 137 and a tool for operating the fastener to be inserted.

  As shown in FIG. 1, the illumination unit 10 configured as described above constitutes a facing arrangement group G1 arranged in a pair in a straight line with the bent portion 111 side of the cold cathode fluorescent lamp 11 facing each other. Further, a plurality of the opposing arrangement groups G1 are arranged in parallel. The linear portions of the cold cathode fluorescent lamps 11 of each illumination unit 10 and the linear portions of the cold cathode fluorescent lamps 11 of the illumination units 10 of the adjacent facing arrangement group G1 are arranged in parallel to each other and at equal intervals. Yes. The bent portions 111 of the illumination units 10 in the same facing arrangement group G1 have a slightly narrower positional relationship than the widths of the straight portions of the cold cathode fluorescent lamps 11.

  When the illumination unit 10 is arranged as described above, since there is the bent portion 111 of the cold cathode fluorescent lamp 11 between the illumination units 10 of the same facing arrangement group G1 in the illumination device 1, the light diffusion plate 3 at the corresponding position. However, a sufficient amount of light can be obtained. Therefore, the luminance hardly occurs on the light emitting surface 3a of the light diffusion plate 3 on the side opposite to the illumination unit 10.

  Below, the illuminating device 1 of 2nd Embodiment to 6th Embodiment from which arrangement | positioning of the illumination unit 10 respectively differs compared with 1st Embodiment is demonstrated with reference to FIGS. 6-10. In addition, the structure which has the same function as 1st Embodiment attaches | subjects the same code | symbol, and abbreviate | omits the description.

  The illuminating device 1 of 2nd Embodiment which concerns on this invention is demonstrated with reference to FIG. The illuminating unit 10 of the illuminating device 1 shown in FIG. 6 constitutes the anti-displacement group G2 in which the end portions 112 of the cold cathode fluorescent lamps 11 face each other and are arranged in a pair in a straight line. It is arranged in a state where a plurality are arranged in parallel. In the illumination unit 10, an inverter 12 is disposed inside the cold cathode fluorescent lamp 11, and the end 112 of the cold cathode fluorescent lamp 11 is located closer to the outer periphery of the base than the bent portion 111 as shown in FIG. It extends to a close position.

  Therefore, the interval between the end portions 112 of the cold cathode fluorescent lamps 11 of the cold cathode fluorescent lamp 11 that is not emitted is the interval between the end portions 112 of the cold cathode fluorescent lamps 11 of the illumination unit 10 facing each other. This is sufficiently smaller than the distance between the parts arranged in parallel in the distance up to and the distance between the cold cathode fluorescent lamps 11 of the illumination units 10 of the adjacent anti-arrangement group G2. And since the light diffusing plate 3 corresponding to the part where the end portions 112 face each other can obtain a sufficient amount of light from the cold cathode fluorescent lamp 11, the brightness on the light emitting surface 3a of the light diffusing plate 3 is uneven. hard.

  A lighting device 1 according to a third embodiment of the present invention will be described with reference to FIG. The illumination unit 10 of the illuminating device 1 shown in FIG. 7 includes a facing arrangement group G1 in which the bent portion 111 side of the cold cathode fluorescent lamp 11 faces each other and arranged in a pair in a straight line, and the end 112 side of the cold cathode fluorescent lamp 11 Are disposed in a state in which a plurality of them are alternately arranged in parallel. As described in the first embodiment and the second embodiment, it is difficult for the luminance on the light emitting surface 3a of the light diffusion plate 3 to be uneven regardless of whether it is the opposing arrangement group G1 or the anti-conversion arrangement group G2. Therefore, the illumination device 1 in which the opposite arrangement group G1 and the opposite arrangement group G2 are alternately arranged is also unlikely to have a spot on the luminance on the light emitting surface of the light diffusing plate 3.

  The illuminating device 1 of 4th Embodiment which concerns on this invention is demonstrated with reference to FIG. The illuminating unit 10 of the illuminating device 1 shown in FIG. 8 constitutes a series arrangement group G3 in which the bent portion 111 side and the end portion 112 side of the cold cathode fluorescent lamp 11 face each other and are arranged in a straight line. Are arranged in parallel.

  A lighting device 1 according to a fifth embodiment of the present invention will be described with reference to FIG. The lighting unit 10 of the lighting device 1 shown in FIG. 9 is arranged in a direction in which the bent portion 111 side of the series arrangement group G3 is aligned with the end 112 side of the adjacent series arrangement group G3.

  In the lighting devices 1 of the fourth and fifth embodiments, the adjacent lighting units 10 are arranged so that the bent portion 111 and the end portion 112 face each other. That is, the cold cathode fluorescent lamp 11 is always provided along one of the adjacent sides of the adjacent illumination units 10. Therefore, luminance spots are hardly generated on the light diffusing plate 3.

  A lighting device 1 according to a sixth embodiment of the present invention will be described with reference to FIG. The lighting device 1 shown in FIG. 10 is one size larger than the lighting device 1 of the first to fifth embodiments. Therefore, the number of the illumination units 10 attached inside as a light source is also large. In the lighting device 1, the lighting unit 10 is placed in a state in which the facing arrangement group G1 is inserted between the bent portions 111 of the facing arrangement group G1 in a direction crossing the bent portion 111 side. In the present embodiment, the external dimensions of the individual lighting units 10 are made such that the aspect ratio is 6: 1. The ratio of the outer diameter dimensions shown here is an example, and other ratios such as 4: 1 and 7: 2 may be used in various arrangements.

  Next, the illumination unit 10 applied to the illumination device 1 according to the seventh embodiment of the present invention will be described with reference to FIGS. 11 and 12. In addition, about the structure of the whole illuminating device, and the arrangement | sequence of the illuminating unit 10, the 1st-6th embodiment shall be considered. As shown in FIG. 11, the illumination unit 10 includes engagement portions 17 a and 17 b that perform positioning with the adjacent illumination unit 10. The engaging portions 17a and 17b extend outward from two side portions 130 of the base 13 along a straight portion provided between the bent portion 111 and the end portion 112 of the cold cathode fluorescent lamp 11. Each of the side portions 130 is provided with a total of four engaging portions 17a and 17b, one for the bent portion 111 and one for the end portion 112, respectively. Each engaging part 17a, 17b has a mounting hole 171 penetrating toward the main body 2 of the lighting device 1.

  In the present embodiment, the illumination unit 10 is provided near the end portion 112 of the side portion 130 that is visible on the near side in FIG. 11, and the engaging portion 17 a extending toward the near side is provided along the attachment portion 4 of the main body 2. It has been. The engaging portion 17b provided near the bent portion 111 of the side portion 130 that is visible on the front side in FIG. 11 and extending toward the front side is provided on the mounting portion 4 provided on the main body 2 of the lighting device 1 as shown in FIG. It is provided at a slightly raised position.

  In FIG. 11, the engaging portion 17 a provided near the bent portion 111 of the side portion 130 on the back side and extending to the back is provided along the attachment portion 4 of the main body 2 as shown in FIG. 12. The engaging portion 17 b provided near the end 112 of the back side portion 130 and extending to the back is provided at a position slightly raised from the mounting portion 4. In other words, the engaging portions 17a and 17b are provided in a rotationally symmetrical arrangement with one and the other of the side portions 130 of the base 13, respectively.

  Therefore, if it is the illumination unit 10 of the same shape, it can also be attached side by side so that the bending part 111 may adjoin, and it can also be attached side by side so that the bending part 111 and the edge part 112 may adjoin. As shown in FIG. 12, the engaging portions 17 a and 17 b between the adjacent lighting units 10 are overlapped and fixed by the fixing bolt 5.

  Since the illumination unit 10 of the present embodiment includes the engaging portions 17a and 17b, it is easy to position and attach the adjacent illumination units 10 to each other. Since the lighting unit 10 is fixed to the main body 2 by the fixing bolt 5, the fixing portion 137 and the insertion hole 146 in the first embodiment are unnecessary. Further, in the first to sixth embodiments, those corresponding to the above-described engaging portions 17a and 17b are provided between the lighting units 10 which are the opposing arrangement group G1, the contralateral arrangement group G2, and the series arrangement group G3. May be.

  The illumination unit 10 applied to the illumination device 1 according to the eighth embodiment of the present invention will be described with reference to FIGS. 13 and 14. In addition, about the structure of the whole illuminating device, and the arrangement | sequence of the illuminating unit 10, the 1st-6th embodiment shall be considered. The illumination unit 10 differs from the illumination unit 10 of the seventh embodiment in the shapes of the engaging portions 17a and 17b.

  The engaging portion 17 a of the illumination unit 10 has a shape in which about half of the portion that becomes the seat of the fixing bolt 5 enters the side portion 130. The engaging part 17b is recessed inward from the side part 130 so as to correspond to the shape of the engaging part 17a. Also in this embodiment, the engaging portions 17a and 17b are provided in a rotationally symmetric relationship on one side and the other side of the side portion 130 of the lighting unit 10.

  Therefore, as in the case of the seventh embodiment, the lighting unit 10 of this embodiment can also be mounted so that the bent portion 111 side is aligned on the same side, or the bent portion 111 side and the end portion 112 side are aligned on the same side. It can also be attached. Furthermore, the engaging portions 17a and 17b are not overlapped with the engaging portions 17a and 17b of the lighting unit 10 arranged next to each other. Therefore, the lighting unit 10 can be individually attached or detached individually.

  The illumination unit 10 applied to the illumination device 1 according to the ninth embodiment of the present invention will be described with reference to FIGS. 15 and 16. In addition, about the structure of the whole illuminating device, and the arrangement | sequence of the illuminating unit 10, the 1st-6th embodiment shall be considered. The illumination unit 10 of this embodiment shown in FIG. 15 differs from the illumination unit 10 of the seventh embodiment in the shape of the engaging portion 17a.

  As shown in FIG. 16, the engaging portion 17 a of the lighting unit 10 is provided in two pieces in the penetration direction of the fixing bolt 5. The engaging part 17b corresponding to the engaging part 17a is inserted between the engaging parts 17a. The configuration of the other parts of the lighting unit is the same as in the first embodiment.

  The arrangement of the lighting unit 10 of the lighting device 1 is not limited to the arrangement shown in the first to sixth embodiments described above, and may be another arrangement. As an arrangement example of the illumination unit 10 different from the case of the first to sixth embodiments described above, the arrangement of the illumination units in the illumination device 1 of the tenth to twelfth embodiments is shown in FIGS.

  The illuminating device 1 of 10th Embodiment shown in FIG. 17 is applied to the riding rod 100 of a type with a width | variety narrow with respect to the depth of a cage. The eaves door of the norikura 100 is a single door type. The lighting unit 10 of the lighting device 1 has an arrangement in which the bent portion 111 side is made to approach the side wall of the riding rod 100 alternately left and right. If arrange | positioned in this way, the edge part 112 in which the inverter 12 is arrange | positioned will be arrange | positioned near the center of a vase. Since each of the lighting units 10 is arranged at a position where the inverter 12 is surrounded by the cold cathode fluorescent lamp 11, no unevenness in brightness occurs. Further, since the lighting unit 10 is disposed in a state where the bent portion 111 is brought close to the side wall of the riding rod 100, the light reaches the outer peripheral portion of the lighting device 1 sufficiently.

  In the lighting device 1 of the eleventh embodiment shown in FIG. 18, the lighting unit 10 is attached in a direction along the front-rear direction of the chamber, and the lighting unit 10 provided in the contralateral arrangement group G2 and the single lighting unit 10 are provided. Alternating from the right end to the left end. In this embodiment, the lighting units 10 arranged between the contralateral arrangement groups G2 are attached with the inverter 12 facing forward. In addition, the user who is going to board from now on by arrange | positioning these lighting units 10 arrange | positioned between the back-and-back arrangement groups G2 a little to the back side of the riding board, and making the back side of the cabin bright. In contrast, a design effect that gives a sense of security and cleanliness can also be obtained.

  The lighting device 1 according to the twelfth embodiment shown in FIG. 19 is similar to the lighting device 1 according to the eleventh embodiment in that the lighting unit 10 is arranged along the front-rear direction and the bent portion 111 is moved to the front side. The units 10 and the lighting units 10 with the bent portions 111 brought to the rear side are alternately arranged from the right end to the left end of the ceiling 101 of the occupant room.

  The above-described first to twelfth embodiments have been described by taking the lighting device 1 installed on the ceiling 101 of the elevator 100 as an example. When using an elevator, the user tends to look at the ceiling 101 or the floor in order to relieve the feeling of pressure caused by the closed room. In particular, when the other person is on board first, or when the occupant room is congested, the corner portion or floor of the ceiling 101 is looked at in order to distract from the eyes. In addition, when getting into an elevator, since the interior of the cabin with artificial light feels darker than the elevator hall into which natural light is inserted, the brightest lighting device 1 in the cabin is visible.

  Therefore, the frequency of the elevator ceiling 101 is higher than the ceiling of an office or home. Even in such a case, according to the illumination device 1 described above, the light diffusing plate 3 emits light uniformly without unevenness, so that the design appearance is good.

  Further, the illumination unit 10 incorporates a cold cathode fluorescent lamp 11 along the outer peripheral edge, and an inverter 12 is disposed inside the cold cathode fluorescent lamp 11. The cover 14 is formed of a transparent member, and the illumination unit 10 contributes as a light source to the end. Therefore, as shown in the first to sixth embodiments and the tenth to twelfth embodiments, not only can the lighting units 10 be arranged in a free arrangement, but also the tenth to twelfth embodiments. As described above, regardless of the size of the chamber, the arrangement of the illumination unit 10 can be set so as not to cause brightness unevenness in the light diffusion plate according to the shape of the chamber.

  1 and 17 to 19, the saddle door of the carriage 100 is arranged on the lower side in each figure, but the saddle door is located on a side wall that is 90 ° different from this, that is, on the right and left side walls in each figure. It may be installed. Similarly, the position where the coffin door is installed with respect to the illumination device 1 shown in the second to sixth embodiments may be the lower side or the upper side in FIGS. 6 to 10, or the right side or the left side.

  The illuminating device according to the present invention is not limited to the illuminating device on the ceiling of the elevator, but may be provided on the floor. In addition, the illumination device can be used as a display panel in which a design is applied to the light diffusing plate because the luminance on the light diffusing plate is less likely to be uneven.

1 is a plan view schematically showing a ceiling of an elevator board in which an illuminating device according to a first embodiment of the present invention is installed, as viewed from below. Sectional drawing of the illuminating device typically shown along the F2-F2 line | wire in FIG. The perspective view of the illumination unit shown in FIG. The disassembled perspective view of the edge part side of the cold cathode fluorescent lamp of the illumination unit shown in FIG. The disassembled perspective view by the side of the bending part of the cold cathode fluorescent lamp of the illumination unit shown in FIG. The top view which shows typically arrangement | positioning of the illumination unit in the illuminating device of 2nd Embodiment which concerns on this invention. The top view which shows typically arrangement | positioning of the illumination unit in the illuminating device of 3rd Embodiment which concerns on this invention. The top view which shows typically arrangement | positioning of the illumination unit in the illuminating device of 4th Embodiment which concerns on this invention. The top view which shows typically arrangement | positioning of the illumination unit in the illuminating device of 5th Embodiment concerning this invention. The top view which shows typically arrangement | positioning of the illumination unit in the illuminating device of 6th Embodiment which concerns on this invention. The perspective view which shows the illumination unit in the illuminating device of 7th Embodiment concerning this invention. Sectional drawing of the illumination unit shown along F12-F12 line | wire in FIG. The perspective view which shows the illumination unit in the illuminating device of 8th Embodiment which concerns on this invention. Sectional drawing of the illumination unit shown along F14-F14 line | wire in FIG. The perspective view which shows the illumination unit in the illuminating device of 9th Embodiment concerning this invention. Sectional drawing of the illumination unit shown along F16-F16 line | wire in FIG. The top view which shows typically arrangement | positioning of the illumination unit in the illuminating device of 10th Embodiment concerning this invention. The top view which shows typically arrangement | positioning of the illumination unit in the illuminating device of 11th Embodiment based on this invention. The top view which shows typically arrangement | positioning of the illumination unit in the illuminating device of 12th Embodiment based on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Illuminating device, 2 ... Main body, 3 ... Light diffusing plate, 10 ... Illuminating unit, 11 ... Cold cathode fluorescent lamp, 12 ... Inverter, 13 ... Base, 14 ... Cover, 17a, 17b ... Engagement part, 111 ... Bending Part, 112 ... end part, 171 ... mounting hole, W ... irradiation region, G1 ... confrontation arrangement group, G2 ... contralateral arrangement group, G3 ... series arrangement group.

Claims (10)

A cold cathode fluorescent lamp with a bent portion in the middle and an end aligned on one side, and an inverter that is placed inside the cold cathode fluorescent lamp and controls the lighting of the cold cathode fluorescent lamp are held at the base A lighting unit to which a cover formed of a transparent member covering the cold cathode fluorescent lamp and the inverter is attached;
A main body on which a plurality of the lighting units are arranged and arranged;
An illuminating device comprising: a light diffusing plate attached to the main body continuously in a plurality of ranges of irradiation areas projected from the illuminating unit.   2. The illumination unit is arranged in a state in which a plurality of opposing arrangement groups in which the bent portions of the cold-cathode fluorescent lamps face each other and are arranged in a straight line are arranged in parallel. Lighting equipment.   2. The lighting unit is arranged in a state in which a plurality of dorsal arrangement groups in which a pair of linearly arranged end-face sides of the cold cathode fluorescent lamps face each other are arranged in parallel. Lighting equipment.   The lighting unit includes a facing arrangement group in which the bent portions of the cold cathode fluorescent lamps face each other and are arranged in a pair in a straight line, and an end portion side of the cold cathode fluorescent lamps in a pair in a straight line The illuminating device according to claim 1, wherein a plurality of the arranged anti-arrangement groups are alternately arranged in parallel.   The illumination unit is arranged in a state in which a plurality of series arrangement groups arranged in a straight line with the bent portion side and the end portion side of the cold cathode fluorescent lamp facing each other are arranged in parallel. The lighting device according to claim 1.   The lighting device according to claim 5, wherein the adjacent series arrangement groups are arranged in such a direction that the positions on the bent portion side are aligned at the same position.   The lighting device according to claim 5, wherein the bent portion side of the series arrangement group is arranged in a direction aligned with the end side of the adjacent series arrangement group.   The lighting device according to claim 1, wherein the lighting unit includes an engaging portion that performs positioning with an adjacent lighting unit. The cold cathode fluorescent lamp has a straight portion between the bent portion and the end portion,
The lighting device according to claim 8, wherein the engaging portion is provided in a rotationally symmetrical arrangement with one and the other of the two side portions of the base along the linear portion. The cold cathode fluorescent lamp has a straight portion between the bent portion and the end portion,
The engaging portion has an attachment hole that extends outward from two side portions of the base along the straight line portion and penetrates toward the main body,
The said illumination unit is fixed to the said main body with the fastener which penetrates the said attachment hole in the state which mutually overlapped the said engaging part of the said illumination unit. Lighting device.

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