JP2015018774A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which enhances performance effect.SOLUTION: A lighting device 10 includes: a device body 13 where multiple light emitting elements 27 are disposed; and a shade 15 which is attached to the device body 13 covering the multiple light emitting elements 27. The shade 15 includes a light diffusion region 36 which transmits light and also includes a transparent region 37 at a part of the light diffusion region 36. An optical member 40 faces the transparent region 37.

Description

  Embodiments described herein relate generally to a lighting device that covers a plurality of light emitting elements with shades.

  2. Description of the Related Art Conventionally, in a lighting device such as a ceiling light, a plurality of light emitting elements are arranged in an instrument body, and a shade is attached to the instrument body so as to cover the plurality of light emitting elements. In general, the seed is made of, for example, a milky white light-diffusing material.

  There is also a lighting device in which a decorative shade frame is arranged around the shade. The shade frame is formed of a transparent member, but only the light diffused by the shade is transmitted.

JP 2013-37852 A

  An example of this is to add a light effect to improve the merchantability of the lighting device, but if you simply place a transparent shade frame around the light-diffusing shade as in the past, the effect can be achieved. It is not sufficient, and further improvement of the production effect is desired.

  The problem to be solved by the present invention is to provide an illuminating device capable of enhancing the effect.

  The illuminating device of the embodiment includes an instrument body in which a plurality of light emitting elements are arranged, and a shade that covers the plurality of light emitting elements and is attached to the instrument body. The seed has a light diffusion region through which light is transmitted and a transparent region in a part of the light diffusion region. The optical member faces the transparent region.

  According to the present invention, since a transparent region is provided in a part of the light diffusion region of the shade, and the optical member is opposed to the transparent region, the light emitting portions of the plurality of light emitting elements are reflected on the optical member and shine on the optical member. It can be expected that a stunning production effect will be obtained.

It is an expanded sectional view of the illuminating device which shows 1st Embodiment. It is sectional drawing of an illuminating device same as the above. It is a perspective view of an illuminating device same as the above. It is an expanded sectional view of the illuminating device which shows 2nd Embodiment. It is a perspective view of an illuminating device same as the above. It is an expanded sectional view of the illuminating device which shows 3rd Embodiment. It is a perspective view of an illuminating device same as the above. It is an expanded sectional view of the illuminating device which shows 4th Embodiment. It is a perspective view of an illuminating device same as the above.

  Hereinafter, a first embodiment will be described with reference to FIGS. 1 to 3.

  The lighting device 10 is a ceiling light, and includes an instrument body 13 that is attached to a hooking ceiling body 11 installed on a ceiling surface via an adapter 12. A light emitting module 14 is attached to the lower surface side, which is the front side of the instrument body 13, and a shade 15 is detachably attached. An instrument cover 16 is attached to the upper surface side of the instrument body 13, and the instrument body 13 and the instrument An adapter guide 17 and a lighting device 18 are disposed between the cover 16 and the cover 16. The shade 15 and the instrument body 13 may be integrated and cannot be attached or detached.

  The instrument body 13 is formed in a disc shape, an opening 22 into which the lower part of the adapter guide 17 is fitted is formed in the center, and an annular mounting surface 23 for attaching the light emitting module 14 is formed on the lower surface, and the peripheral part A shade attaching portion 24 for attaching the shade 15 is formed in the. A plurality of shade fittings (not shown) that are detachably attached by rotating the shade 15 are attached to the shade attachment portion 24.

  The light emitting module 14 includes a substrate 28 on which a plurality of light emitting elements 27 such as LED elements are mounted. The substrates 28 are formed, for example, in a semi-annular shape, and are combined in an annular shape by arranging a pair of substrates 28 on the mounting surface 23 of the instrument body 13. The substrate 28 is formed of a material such as metal, ceramics, or resin. A wiring pattern is formed on the surface of the substrate 28 via an insulating layer, and a plurality of light emitting elements 27 are mounted on the wiring pattern. In the present embodiment, a surface-mount type SMD package type LED element is used as the light emitting element, and a plurality of LED elements are arranged in two rows concentrically on the surface of the substrate 28 along the circumferential direction. Further, a reflective surface having high reflectance characteristics is formed on the surface of the substrate 28 so as to cover the wiring pattern. A connector for connecting between adjacent substrates 28 and a connector for connecting to the lighting device 18 are mounted on the substrate 28.

  The light emitting module 14 attached to the attachment surface 23 of the appliance body 13 is covered with a protective cover 29 made of transparent resin having insulation properties. In this protective cover 29, two annular lens portions 29a are formed in concentric circles so as to face the light emitting elements 27 arranged in two rows concentrically on the substrate 28, respectively. The light emitted from the light emitting element 27 is controlled by the lens portion 29a so as to spread light toward the center side and the peripheral side of the instrument body 13.

  The shade 15 has a shade body 32 made of a transparent resin material. A dome-shaped front surface portion 33 that gently curves and protrudes is formed on the front surface side of the shade body 32, and an annular side surface portion 34 that rises from the peripheral portion of the front surface portion 33 is formed. Is formed, and the center of the back surface portion 35 is opened. The side surface portion 34 is polygonal as viewed from the front surface, and is formed in, for example, an octagon. Triangular protrusions 34a are formed on every other side of the octagon, and on every other side. A curved or flat window portion 34b is formed, and the surface of the window portion 34b is inclined so as to protrude from the upper side to the lower side (to increase the diameter). An attachment step (not shown) that is detachably attached to each of the shade attachment fittings of the appliance body 13 is formed on the back surface portion 35 of the shade body 32.

  In the shade 15, a light diffusion region 36 having a light diffusion effect with a predetermined light transmittance is formed as a whole except for a part. The light diffusion region 36 is formed by applying, for example, white silk printing on the inner surface of the shade body 32, but other means may be used.

  On the side surface 34 of the shade 15, a transparent region 37 in which the light diffusion region 36 is not formed, that is, silk printing is not performed is formed on the surface of each window 34b. The transparent region 37 is formed over the entire surface of the window portion 34b of the side surface portion 34, and is formed so that the light diffusion region 36 has a large opening. The large opening (window 34b) may be a mesh-shaped or slit-shaped opening (window 34b).

  A plurality of high transmittance portions 38 having a light transmittance relatively higher than that of the light diffusion region 36 are formed in the light diffusion region 36 on the front surface portion 33 of the shade 15. The plurality of high transmittance portions 38 are constituted by small dot-shaped holes in which the light diffusion region 36 is not formed, that is, silk-printed, for example, and the plurality of dot-shaped holes are light diffusion regions in the front surface portion 33. It is randomly scattered throughout the 36.

  The shade 15 is formed, for example, by performing silk printing on a flat plate as a material of the shade main body 32 and then forming the shade shape.

  Further, an optical member 40 is attached to the outside of each transparent region 37 of the shade 15 so as to face the transparent region 37. The optical member 40 includes a first optical component 41 and a second optical component 42, and is formed so as to form a substantially triangular shape having the same shape as the protruding portion 34a in a combined state. Therefore, the shade 15 is formed in a star shape by the plurality of protrusions 34a and the plurality of optical members 40 in the peripheral portion.

  The first optical component 41 is formed of a transparent resin material, and includes an incident portion 43 that faces the transparent region 37 and a front portion 44 that rises obliquely from the lower portion of the incident portion 43. Also, prism surfaces 45a, 45b, 45c having a plurality of prisms are formed on both the inside and outside of the front portion 44. The upper part and the lower part of the first optical component 41 are attached to the shade 15 by, for example, an adhesive or other attachment means.

  The second optical component 42 is formed of a transparent resin material, is attached by closing the upper surface side of the first optical component 41, and has a back portion 46 that faces the outer surface of the incident portion 43. A prism surface 47 having a plurality of prisms is formed on the outer surface of 46.

  An opening 16a that faces the hooking sealing body 11 is formed at the center of the instrument cover 16. An adapter guide 17 is attached to the lower surface of the instrument cover 16 around the opening 16a.

  The adapter guide 17 is formed in a cylindrical shape and is detachably attached to the adapter 12 by being fitted into the adapter 12 attached to the hooking sealing body 11.

  The lighting device 18 has a circuit board 18a disposed around the adapter guide 17 and held on the instrument cover 16 side, and various electronic components constituting the lighting device 18 are mounted on the circuit board 18a. ing. Commercial AC power is input to the power input side of the lighting device 18 through an adapter and a hook ceiling, and the load output side of the lighting device 18 is connected to the plurality of light emitting elements 27 through the wiring pattern of the circuit board 18a. Then, the lighting device 18 rectifies and smoothes the commercial AC power, converts it to predetermined DC power, and supplies it to the light emitting element 27.

  To install the lighting device 10, the adapter 12 is attached to the hooking ceiling body 11, and the adapter guide 17 of the lighting device 10 with the shade 15 removed is attached to the adapter 12. The wiring led out from the adapter 12 is connected to the lighting device 18 by a connector, and the hooking sealing body 11 and the lighting device 18 are electrically connected. A shade 15 is attached to the instrument body 13.

  Further, when the lighting device 10 is turned on, the lighting device 18 supplies DC power to the plurality of light emitting elements 27, whereby the plurality of light emitting elements 27 are turned on, and light from the plurality of light emitting elements 27 is transmitted through the protective cover 29. Then, the light is emitted to the inner area of the shade 15 and transmitted through the shade 15 to irradiate the illumination space.

  Light incident from the inner region of the shade 15 to the light diffusion region 36 of the front surface portion 33 and the light diffusion region 36 of the protruding portion 34a of the side surface portion 34 is diffused, and the entire light diffusion region 36 shines uniformly.

  Light that has entered the plurality of high transmittance portions 38 of the front surface portion 33 from the inner region of the shade 15 is transmitted without being diffused. Therefore, when the shade 15 is viewed, the light diffusion region 36 that uniformly glows the shade 15 is dotted with a plurality of sparkles due to the light that has passed through the plurality of high transmittance portions 38, and as a plurality of glittering lights like a starry sky It is visible, and further, the position where the shade 15 is viewed changes, so that it is possible to obtain a production effect in which a plurality of glitter lights are seen. This glittering feeling is easily obtained when the shade 15 is viewed from the direction in which the light from the light emitting element 27 is emitted through the high transmittance portion 38.

  The light that has entered the transparent region 37 of the side portion 34 from the inner region of the shade 15 passes through the transparent region 37 and enters the incident portion 43 of the optical member 40, and is bent by the prism surface 45a to be front 44 or back 46. Exit toward The light traveling toward the front part 44 is bent by the prism surfaces 45b and 45c of the front part 44 and is emitted to the front side. A part of the light traveling toward the back part 46 is reflected by the back part 46 and travels toward the front part 44, and the other part enters the back part 46, bends at the prism surface 47 and exits to the side surface side. As a result, the light emitting portions of the plurality of light emitting elements 27 bent by the plurality of prism surfaces 45a, 45b, 45c, 47 are displayed on the front portion 44 and the back portion 46 of the optical member 40, and the front portion 44 of the optical member 40 is displayed. The prism surface 45a, 45b, 45c, 47 of the back portion 46 or the back portion 46 can provide an effect of appearing to shine at a higher altitude than the light diffusion region 36 of the shade 15.

  In the illuminating device 10 configured as described above, a transparent region 37 is provided in a part of the light diffusion region 36 of the shade 15, and the optical member 40 is opposed to the transparent region 37. Is reflected on the optical member 40, and the optical member 40 can have a brilliant presentation effect, thereby improving the merchantability.

  Further, the optical member 40 transmits the light transmitted through the transparent region 37 formed on the side surface of the shade 15 to the side surface side of the optical member 40 and emits the light to the front side of the optical member 40. Even if it sees from the top, the optical member 40 can have a radiant feeling.

  In addition, since a plurality of sparkling lights can be seen by the plurality of high transmittance portions 38 on the front surface portion 33 of the shade 15, the effect of production can be further enhanced by a synergistic effect with the glittering feeling of the optical member 40.

  Note that the transparent region 37 may be formed on the entire circumference of the shade 15 and the optical member 40 may be disposed so that a radiant feeling is obtained on the entire circumference of the shade 15.

  In addition, a color filter may be arranged corresponding to the transparent region 37 of the shade 15 to add color to the feeling of brightness. Even if it is not a color filter, the same effect can be obtained by printing on the shade 15.

  Next, FIG. 4 and FIG. 5 show a second embodiment. In addition, the same code | symbol as 1st Embodiment is used, and the description is abbreviate | omitted about the same structure and effect.

  Configurations of the instrument body 13 and the light emitting module other than the shade 15 and the optical member 40 are the same as those in the first embodiment.

  The side portion 34 of the shade 15 is formed in a cylindrical shape, and is inclined so as to protrude from the upper side to the lower side (to increase the diameter). A window portion 34b and a transparent region 37 are formed over the entire circumference of the side surface portion 34.

  The optical member 40 includes an optical component 50 formed in an annular shape so as to face the transparent region 37 in the entire circumference of the side surface portion 34. This optical component 50 is formed of a transparent resin material, and the upper part is attached to the back part 35 of the shade 15 by, for example, an adhesive or other attachment means, and the lower part is a gap between the side part 34 of the shade 15 and the lower part. It is arranged so as to face each other with a gap. A prism surface 51 having a plurality of prisms is formed on the surface of the optical component 50 facing the side surface portion 34 of the shade 15, and a prism surface 52 having a plurality of prisms is formed on the front surface facing downward at the tip of the optical component 50. ing.

  The light that has entered the transparent region 37 of the side surface 34 from the inner region of the shade 15 passes through the transparent region 37, is bent by the prism surface 51, and enters the optical member (optical component 50) 40. The light is emitted from the front surface or the outer surface. The light bent at the prism surface 52 is emitted from the front surface of the optical member 40, and the light bent at the prism surface 52 is emitted from the outer surface of the optical member 40. Accordingly, the light emitting portions of the plurality of light emitting elements 27 bent by the plurality of prism surfaces 51 and 52 are projected on the front surface of the optical member 40, and the plurality of light beams bent by the prism surface 51 are projected on the outer surface of the optical member 40. The light emitting portion of the light emitting element 27 is projected, and it is possible to obtain an effect that the front surface and the outer surface of the optical member 40 appear to shine at a higher altitude than the light diffusion region 36 of the shade 15.

  Further, since the optical member 40 is separated from the shade 15, the prism surface 51 inside the optical member 40 can also be visually recognized, and the prism surface 51 inside the optical member 40 also appears to shine.

  Next, FIGS. 6 and 7 show a third embodiment. In addition, the same code | symbol as the said embodiment is used, and the description is abbreviate | omitted about the same structure and effect.

  Configurations of the instrument body 13 and the light emitting module other than the shade 15 and the optical member 40 are the same as those in the first embodiment. Although the protective cover 29 is not shown in FIG. 6, the protective cover 29 is used.

  The side surface 34 of the shade 15 is polygonal, for example, octagonal when viewed from the front surface, and is formed in a substantially U-shaped cross section with an intermediate portion in the height direction protruding outward from the upper and lower portions. A window 34b and a transparent region 37 are formed corresponding to every other side of the octagonal side surface 34.

  The optical member 40 includes an optical component 55 facing the transparent region 37 of the side surface portion 34, and a prism sheet 56 interposed between the transparent region 37 and the optical component 55. The optical component 55 is formed in a substantially U-shaped cross section corresponding to the shape of the side surface portion 34 by a transparent resin material, and the upper portion and the lower portion are formed on the back surface portion 35 and the side surface portion 34 of the shade 15, for example, with an adhesive or the like. It is attached by attachment means. The prism sheet 56 is light transmissive and has a plurality of small prisms formed on the front and back surfaces, and covers the transparent region 37.

  Then, the light that has entered the transparent region 37 of the side portion 34 from the inner region of the shade 15 passes through the transparent region 37, is bent by the prism sheet 56, and enters the optical member (optical component 55) 40. The light is emitted from the outer surface of the. As a result, the light emitting portions of the plurality of light emitting elements 27 bent by the prism sheet 56 are projected on the outer surface of the optical member 40, and the outer surface of the optical member 40 is higher than the light diffusion region 36 of the shade 15. An effect that looks shining can be obtained.

  Note that the transparent region 37 may be formed on the entire circumference of the shade 15 and the optical member 40 may be disposed so that a radiant feeling is obtained on the entire circumference of the shade 15.

  Next, FIGS. 8 and 9 show a fourth embodiment. In addition, the same code | symbol as the said embodiment is used, and the description is abbreviate | omitted about the same structure and effect.

  Configurations of the instrument body 13 and the light emitting module other than the shade 15 and the optical member 40 are the same as those in the first embodiment.

  The side portion 34 of the shade 15 is formed in a cylindrical shape, and is inclined so as to protrude from the upper side to the lower side (to increase the diameter). A window portion 34b and a transparent region 37 are formed over the entire circumference of the side surface portion 34.

  A prism sheet 59 is attached to the inner side surface of the side surface portion 34 so as to cover the transparent region 37 of the entire circumference of the side surface portion 34. The prism sheet 59 is light transmissive and has a plurality of small prisms formed on the front and back surfaces.

  The optical member 40 includes an optical component 60 formed in an annular shape so as to face the transparent region 37 in the entire circumference of the side surface portion 34. This optical component 60 is formed of a transparent resin material, and the upper part is attached to the back part 35 of the shade 15 by, for example, an adhesive or other attachment means, and the lower part is a gap between the side part 34 of the shade 15 and the optical part 60. It is arranged so as to protrude sideways with a gap. The inner surface of the optical component 60 is formed as a half mirror surface having light transmittance and light reflectivity (mirror surface).

  The light traveling from the inner region of the shade 15 toward the side portion 34 is bent by the prism sheet 59, passes through the transparent region 37, and enters the optical member (optical component 60) 40. A part of the light incident on the optical member 40 is reflected forward (downward) on the inner surface of the optical member 40, and the other part of the light is transmitted through the optical member 40 and laterally from the outer surface of the optical member 40. To exit. Thus, the light emitting portions of the plurality of light emitting elements 27 bent by the prism sheet 59 are projected on the inner surface of the optical member 40, and the plurality of light emitting elements 27 bent by the prism sheet 59 are also projected on the outer surface of the optical member 40. The light emitting portion is projected, and an effect can be obtained in which the front and outer surfaces of the optical member 40 appear to shine at a higher altitude than the light diffusion region 36 of the shade 15.

  Further, since the optical member 40 is separated from the side surface portion 34 of the shade 15, the side surface portion 34 of the shade 15 is also visible from below the lighting device 10, and the side surface portion 34 of the shade 15 is also formed by the prism sheet 59. The light emitting portions of the bent light emitting elements 27 are projected and appear to shine.

  As in each of the embodiments described above, in the illumination device 10, the transparent region 37 is provided in a part of the light diffusion region 36 of the shade 15, and the optical member 40 is opposed to the transparent region 37. The light emitting portion is reflected on the optical member 40, so that the optical member 40 can have a brilliant presentation effect, and the merchantability can be improved.

  The transparent region 37 of the shade 15 is not limited to being provided on the side surface portion 34, and may be provided on the front surface portion 33. Also in this case, the optical member 40 may be disposed on the front surface portion 33 of the shade 15 so as to face the transparent region 37.

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

10 Lighting equipment
13 Instrument body
15 Sade
27 Light emitting element
36 Light diffusion region
37 Transparent area
38 High transmittance part
40 Optical components

Claims (3)

An instrument body in which a plurality of light emitting elements are disposed;
A shade that covers the plurality of light emitting elements and is attached to the instrument body, has a light diffusion region through which light is transmitted, and has a transparent region in a part of the light diffusion region;
An optical member facing the transparent region;
An illumination device comprising: A transparent area is formed on the side of the shade,
The lighting device according to claim 1, wherein the optical member transmits the light transmitted through the transparent region to the side surface side of the optical member and emits the light to the front surface side of the optical member. The lighting device according to claim 1, wherein a plurality of high transmittance portions having a light transmittance higher than that of the light diffusion region are formed on the front side of the shade.

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