JP5296391B2 - Lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting device capable of largely projecting a complicated projected image on a wall face when a lamp is lighted up in a darkroom. <P>SOLUTION: The lighting device includes a hollow lamp shade, a light emitter arranged in the lamp shade, and a base where the light emitter is stood up. The lamp shade provides a plurality of translucent holes with at least one or more types of holes among the translucent holes made of a round hole, a thin and long hole, a star-like hole, a crescent-shaped hole, and forms a bottom opening capable of inserting the light emitter. When the light emitted from the light emitter penetrates the translucent holes, the projected light formed by a shape of the translucent hole is projected on the wall face arranged in the vicinity of the lamp shade. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to an illumination device including a lamp shade.

  Conventionally, as a lighting device, a plurality of through-holes are provided on the surface of a shade formed of a material such as ceramics, porcelain, plastic, etc., and the lamp is used as a light source in the shade, and the lamp is radiated from the lamp. There is known an installation-type lighting device that emits light by transmitting the transmitted light through the through hole.

Such an illuminating device projects a projected image of a lamp-fermented pattern from a plurality of through holes provided in a ceramic shade onto a spherical glove disposed further outward of the shade. When viewing a projected image, or when a decorative pattern is formed with a plurality of through-holes, when the light is transmitted, the through-holes are viewed directly and viewed (for example, patent documents) 1).
Japanese Utility Model Publication No. 6-58509

  However, the above-mentioned lighting device made of earthenware does not greatly project the light radiated from the plurality of through holes onto the surrounding wall surface, and even if it is projected, a simple light pattern is formed on the wall surface. It was hard to say that it was just projected and that it was still well-developed.

  That is, since the modeling of the light projected by translucency is simple, it cannot be enjoyed by watching.

  This invention is made | formed in view of such a situation, Comprising: Projection light is projected on a wall body, and the illuminating device which can raise a viewer's further aesthetics is provided.

The invention according to claim 1 is an illuminating device including a hollow lamp shade, a light emitter installed in the lamp shade, a base on which the light emitter is erected , and a wall surface disposed around the lamp shade . , the lampshade is formed in a hollow conical tip sharp as made ceramics, an outer direction is formed at equal intervals a number of grooves of V-shaped cross-section in the circumferential direction of the peripheral wall outer surface, is formed between the groove The vertical angle of the convex V-shape is formed so as to gradually increase as the curvature of the peripheral wall increases, and a plurality of longitudinal elongated holes arranged in series in the vertical direction on the rear surface of the peripheral wall A plurality of lateral elongated holes provided on both sides of the longitudinal slot, and a plurality of circular holes on both sides of the longitudinal slot and the lateral slot. The two elongated holes have the same height on both sides of the elongated slot in the vertical direction. The elongated hole plural sets formed in the vertical direction as a set, the filament of the light emitter is a reverse V-shape, in front of the peripheral wall, drilled a number of circular holes obtained by densely spirally from top to bottom and, the shape of the longitudinal elongated holes and transverse elongated holes and round holes in the wall surface when the light irradiated from the light-emitting element passes and a vertical direction of the elongated hole and the transverse direction of the elongated hole and circular hole It is configured to project projection light shaped like a peacock with its wings spread.

According to the first aspect of the present invention, the illumination includes a hollow lamp shade, a light emitter installed in the lamp shade, a base on which the light emitter is erected , and a wall surface disposed around the lamp shade. In the apparatus, the lamp shade is made of ceramic and is formed in a hollow conical shape with a sharp tip, and a plurality of grooves having a V-shaped cross section are formed at equal intervals in the circumferential direction of the outer peripheral wall surface , and formed between the grooves. The apex angle of the outwardly convex V-shape is formed so as to gradually increase as the curvature of the peripheral wall increases, and a plurality of longitudinally elongated strips arranged in series in the vertical direction on the rear surface of the peripheral wall And a plurality of lateral elongated holes provided on both sides of the longitudinal elongated hole, and a plurality of circular holes on both sides of the longitudinal elongated slot and the lateral elongated hole, The horizontal slot is drilled at the same height on both sides of the vertical slot. Two elongated holes plural sets formed in the vertical direction as a set, the filament of the light emitter is a reverse V-shape, in front of the peripheral wall surface, a large number of circular holes obtained by densely spirally from top to bottom was bored, and the longitudinal direction of the elongated hole in the wall surface when the light irradiated from the light-emitting element passes and a vertical direction of the elongated hole and the transverse direction of the elongated hole and circular holes and transverse elongated holes circular hole Since the projection light shaped like a peacock with its wings expanded according to the shape of the light is projected, when the light emitter is turned on in a dark room, the light from the light emitter is perforated on the peripheral wall This is effective in projecting a peacock-like shape with wings spread on the same wall when a plurality of light beams reach the wall surface. There is also an effect of projecting a large amount of light on the wall.

  The present invention relates to a lighting device including a hollow lamp shade, a light emitter installed in the lamp shade, and a base on which the light emitter is erected, wherein the lamp shade has a circular hole and an elongated hole on a peripheral wall surface. A plurality of light transmitting holes of at least one kind among the light transmitting holes comprising a star-shaped hole and a crescent-shaped hole, and forming a bottom opening into which a light emitting body can be inserted at the bottom; Provided is an illuminating device configured to project projection light shaped according to the shape of the light-transmitting hole onto a wall surface arranged around the lampshade when more irradiated light passes through the light-transmitting hole To do.

  Here, the shape of the lamp shade is not particularly limited as long as the inside is hollow. For example, a shade shape, a hemispherical shape (dome shape), a shell shape (rocket shape), a spherical shape, a polygonal pyramid shape, etc. are used. Can be appropriately selected according to the user's application.

  Further, the material for forming the lamp shade is not particularly limited as long as it is a material resistant to heat emitted from the light source, and can be ceramic, ceramic, porcelain, synthetic resin, metal, paper, or the like. .

  As the light emitter, any light source that emits light can be used. For example, an incandescent bulb, a fluorescent lamp, an LED (light emitting diode), or the like can be used. However, the intensity of light emitted from the light source needs to be strong enough to reach at least the wall body through the light transmitting hole.

  Further, the light emitted from the light emitter is not limited to visible light, and may be, for example, ultraviolet light. Even if an ultraviolet emitter is disposed in the lamp shade as a light source and a fluorescent material is applied to the wall surface, the projection light can be projected onto the wall body.

  A light transmitting hole for transmitting light from the light source is formed in the peripheral wall surface of the lamp shade. Since the light transmitting hole is a circular hole, an elongated hole, a star-shaped hole, a crescent-shaped hole, or a petal-shaped hole, projection light according to each hole can be projected onto the wall surface.

  Moreover, since many of these light-transmitting holes are formed, the projected light group projected on the wall surface can project a beautiful image that is reminiscent of the Milky Way and the galaxy.

  In particular, by forming the light transmitting hole group on the peripheral wall surface of the lamp shade so as to draw a curve downward from the top, the projected light group projected on the wall surface can be made more like a picture of the Milky Way. However, when forming this light transmitting hole group, it is desirable to form the space | interval of the light transmitting holes in the lamp shade surface within the range of 2-8 mm. If it is less than 2 mm, the projection light projected on the wall surface is excessively overlapped, making it difficult to see the projection light emitted from the single light transmission hole, and if it exceeds 8 mm, the light is emitted from the single light transmission hole. There is a risk that the projected light will be too independent and it will not be possible to perform the Milky Way projection like a painting.

  Further, the inner peripheral surfaces of these light transmitting holes may be formed by providing a downward downward gradient outside the lamp shade. That is, the projection light can be projected onto the floor surface by providing a light transmitting hole with the axis line directed on the floor surface on which the illumination device is provided.

  Moreover, you may form the inner peripheral surface of a translucent hole in the taper of the expanding shape toward the outward of a lamp shade. With such a configuration, the aperture of the light transmitting hole can be opened, and a so-called “bleeding” effect can be produced in which the peripheral edge of the projection light becomes light.

  On the other hand, the inner peripheral surface of the light transmitting hole may be formed in a taper that is expanded toward the inside of the lamp shade. With such a configuration, the aperture of the light transmission hole can be reduced, and the peripheral edge of the light transmission hole can be sharpened so that the projection light can be clearly seen.

  In addition, you may make it provide the reflective material which reflects the light from a light source in the inner wall surface of these translucent holes. That is, even when the direction of radiation of the light emitted from the light source is different from the axial direction of the light transmitting hole, the light passing through the light transmitting hole can be obtained by disposing a reflective material on the inner wall surface of the light transmitting hole. Can be efficiently guided to the outside of the lamp shade. Further, the light can be diffusely reflected in the light transmitting hole to make the projected light to be projected into a more complicated shape, and further beautiful projected light can be obtained.

  The reflective material is not particularly limited as long as it is a material that can reflect light from the light source, and for example, white paint, metal, quartz powder, or the like can be used. In addition, these may be colored to express colors in the projection light.

  By the way, a conventional illumination device including a hollow lamp shade, a light emitter installed in the lamp shade, and a base on which the light emitter is erected generally shows the projection light to the viewer. It is hard to say that the design of the lamp shade itself is entertaining.

  That is, a viewer in the vicinity of the lamp shade emitting light in the dark can recognize the projected light but is dazzled by the light transmission, so that the design of the lamp shade itself is difficult to recognize.

  Therefore, in the lighting device according to the present invention, the lamp shade is made of ceramic as the material to be formed, and the irradiation light from the light emitter is configured to leak to the surface of the lamp shade.

  By adopting such a configuration, the lamp shade itself can be slightly brightened, and not only the projection light but also the lamp shade design itself can be enjoyed by the viewer.

  As a specific configuration, for example, there is a method of forming grooves at a constant interval on the peripheral wall surface of the lamp shade. The lamp shade can be brightened by following the outer surface of the lamp shade while reflecting the light from the light transmitting hole by the groove.

  Further, the light transmitting hole is constituted by an elongated hole formed in the substantially circular peripheral wall surface of the lamp shade, and a number of outwardly upwardly inclined circular holes formed on both sides of the elongated hole. Anyway.

  With such a configuration, the light transmitted from the elongated hole can be projected vertically on the wall surface, and the light transmitted from the circular hole by the pinhole effect projects the shape of the filament. By projecting as an image, an image made up of an assembly of the plurality of filament-shaped projection images can be projected on the wall or ceiling as a peacock like a picture or shadow picture with its wings open. .

  Hereinafter, the illumination device according to the present embodiment will be described more specifically with reference to the drawings.

  1 is a front view of the lighting device, FIG. 2 is a sectional view taken along line AA of FIG. 1, FIG. 3 is a bottom view showing the lighting device, FIG. 4 is a sectional view showing the main part of the lighting device, and FIG. FIG. 6 is a configuration diagram illustrating projection from two light transmission holes, FIG. 7 is a cross-sectional view of the light transmission holes, and FIG. FIG. 8B is a cross-sectional view taken along the line BB of FIG. 8A.

  As shown in FIGS. 1 and 2, the lighting device 1 according to the present embodiment includes a lamp shade 2 and a base 4 on which the lamp shade 2 is mounted and the light emitter 3 is erected.

  The lamp shade 2 is formed in a hollow, substantially spherical shape, and a spherical top portion 10 is provided with a large-diameter hole 20, and the spherical peripheral wall surface 11 has a substantially circular hole 22, a substantially star-shaped hole 23, and a substantially crescent-shaped hole. A large number of 24 light transmitting holes 21 are formed, and the grooves 30 are formed at equal intervals in the peripheral wall surface 11. In this spherical peripheral wall surface 11, a large number of circular holes 22 are densely drilled obliquely from above toward the middle, and a plurality of star-shaped holes 23 and a plurality of holes are provided at regular intervals from above to below. The substantially crescent-shaped hole 24 is drilled while being scattered.

  As shown in FIGS. 2 and 3, the lamp shade 2 is made of ceramic, has a notch 27 in the bottom 12, a bottom opening 28 into which the light emitter 3 erected on the base 4 can be inserted, and a leg. A projection 13 having a flat bottom surface is formed, and the lamp 3 standing on the base 4 is covered with the lamp shade 2 from above, so that the lamp 3 is placed in the bottom opening 28 of the lamp shade 2. The lamp shade 2 is placed on the base 4 by being inserted, the lamp wiring 5 being pulled out from the notch 27, and the protrusion 13 having a flat top surface coming into contact with the top surface 14 of the base 4. Become.

  The base 4 is formed in a square shape with a constant thickness, and the upper surface 14 of the base 4 is made of marble that has been mirror-finished.

  Furthermore, the illumination device of the present embodiment has the following characteristics.

  When the lamp 3 is turned on, as shown in FIG. 4, light is emitted radially from the lamp 3, and the radially emitted light L is transmitted through holes 21 of various shapes formed in the lamp shade 2. As shown in FIG. 1, a plurality of star-shaped holes 29 scattered on the peripheral wall surface 11 are spaced apart at regular intervals by a plurality of large and small circular holes on the peripheral wall surface 11. 23 and a plurality of crescent-shaped holes 24 have an effect of allowing direct viewing of the decoration lit on the peripheral wall surface 11, and allowing the light transmitted through each light-transmitting hole 21 to be transmitted to the surrounding floor surface F and wall surface W. , A plurality of star-shaped holes 23 and a plurality of crescent-shaped holes are projected on the ceiling surface R by projecting a projected image such as a picture by the Milky Way-shaped molding portion 29 composed of a plurality of large and small circular holes and scattered at regular intervals. To project a projected image like a painting by 24 It is a function. That is, for the viewer, the illusion is caused by the brightness when the plurality of light transmission holes 21 on the peripheral wall surface 11 are directly viewed, the large and small projection image on the wall surface W around the light transmission hole 21, and the light and darkness of the projection image. It has the effect of creating a unique impression.

  Further, as shown in FIG. 5, the light transmitting hole formed in the peripheral wall surface 11 has an inner peripheral surface (see FIG. 7A) formed so as to have a downward downward gradient outward from the lamp shade 2. The light transmitted through the light transmitting hole having the inner peripheral surface can project the projection image 15 on the floor surface F or the like. That is, the lower side 34 and the floor surface F in the sectional view of the inner peripheral surface 21 form an angle θ1, and the upper side 35 and the floor surface F in the sectional view of the inner peripheral surface form an angle θ2, and the angle θ1 Each angle θ2 is an acute angle.

  By making such an angle an acute angle, the translucent L2 projected onto the floor surface F on the extension line in the lower side view 34 of the inner peripheral surface 21 has high brightness, and the extension of the inner peripheral surface 21 in the upper side 35 in the cross sectional view. The translucent L3 projected on the floor surface F on the line has a low luminance, so that there is an effect that the projected image 15 expands away from the position where the lamp shade 2 is placed and finally fades. In other words, the viewer has the effect of creating a more fantastic impression with the faded projection image.

  Further, as shown in FIG. 6, the translucent holes 21 formed in the peripheral wall surface 11 are formed at regular intervals at positions in the vertical direction of the peripheral wall surface 11. The two light-transmitting holes 21 surround the two light-transmitting holes 21 so that the light-transmitting holes L4 and L5 transmitted from the light hole 21 and the light-transmitting holes 21 above the peripheral wall surface 11 overlap the two projected images 15 and 15 on the floor surface. The wall 11 is drilled.

  Therefore, it is possible to project a highly decorative projection image while the light transmitted through a plurality of circular holes formed in the peripheral wall surface 11 overlaps in the front-rear direction on the floor surface with respect to the mounting position of the lamp shade. There is an effect.

  In addition, two translucent holes are formed on the peripheral wall surface at regular intervals also in the left and right circumferential positions of the peripheral wall surface. The light transmitted through the two light transmitting holes can be projected on the floor surface so that the two projected images overlap in the left-right direction. Therefore, the light transmitted through the circular holes having a plurality of small and large holes on the peripheral wall surface. The light has an effect of being able to project a collection of projected images with high decorativeness while overlapping in the left-right direction.

  As shown in FIG. 7B, the inner peripheral surface of the light transmitting hole is formed in a downward direction, as shown in FIG. Alternatively, the taper may be formed in an outwardly tapered shape. With this configuration, when the lamp 3 is turned on, the light L transmitted through the circular light transmitting hole 21 is transmitted to the peripheral wall surface W or the floor surface F in the downward direction from the mounting position of the lighting device 1. There is an effect that the projection image 15 of various shapes, that is, the projection image 51 of the filament can be reversed and projected greatly on the wall surface W.

  As shown in FIG. 7C, the inner peripheral surface of the light transmitting hole 21 may be formed in a taper that is widened toward the inside of the lamp shade 2. With such a configuration, when the lamp 3 is turned on, the light L transmitted through the light transmission hole 21 is narrowed to the peripheral wall surface W or floor surface F in the horizontal direction from the mounting position of the lighting device 1 and a short distance. Thus, there is an effect that it is possible to project a small projection image 15 of various shapes.

  By combining the configuration of the inner peripheral surface of the light transmitting hole 21 in FIG. 7 according to the curved surface position of the peripheral wall surface of the lamp shade, it is possible to project various shapes and projected images of shadows due to the light transmission.

  Further, the light L that has been transmitted through the substantially star-shaped hole 23 or the substantially crescent-shaped hole 24 in the light-transmitting hole 21 is projected on the wall surface W or the like as an image of the substantially star-shaped hole 23 or the substantially crescent-shaped hole 24, and The light L transmitted through the substantially circular hole 22 can be projected on the ceiling surface R, the wall surface W, or the floor surface F as a projected image of a pattern obtained by inverting the shape of the filament 6 of the lamp 3 by the pinhole effect. Become.

  Furthermore, on the peripheral wall surface 11 of the lamp shade in the illuminating device of the present embodiment, the grooves 30 are formed at equal intervals in the circumferential direction. As shown in FIG. 8B, the V-shaped groove 30 formed on the peripheral wall surface 11 gradually increases the angle α of the apex angle 31 of the groove 30 as the curvature of the lamp shade 2 increases. Formed as follows.

  On the other hand, as shown in FIG. 8A, the diffracted light L <b> 1 that travels along the V-shaped groove 30 out of the light L transmitted through the light transmitting hole 21 forms the V-shaped groove 30. It proceeds in a zigzag shape while being reflected by both slopes 32, 32.

  On the other hand, after the light L transmitted through the light transmitting hole 21 is applied to the wall surface W or the floor surface F, the reflected light L2 reaches the peripheral wall surface 11 of the lamp shade 2 again and illuminates the peripheral wall surface 11. It becomes. At this time, the lower V-shaped groove 30 formed on the peripheral wall surface 11 is formed such that the apex angle 31 gradually increases as the curvature of the lamp shade increases, and each inclined surface 32 constituting the groove 30 is formed. , 32 also becomes wider toward the bottom, so that the reflected light L2 can be received with a wide light receiving area.

  When the light emitter of the illuminating device 1 of the present embodiment is turned on, the light L is transmitted through the substantially circular hole 22 or the substantially star-shaped hole 23 formed in the substantially spherical peripheral wall surface 11 in the dark room, and the illuminating device. Are roughly projected as a pattern of a complicated shape such as a substantially star-shaped projection image or a V-shaped projection image on the wall body W and the mounting floor surface F of the illumination device. Further, the leaked light L1 out of the transmitted light L travels while being reflected along the V-shaped groove 30 of the peripheral wall surface 11 of the lamp shade 2, so that the viewer can go around the lamp shade 2 regardless of the backlight condition. It is possible to appreciate the wall surface 11 and to improve the artistry.

  Such a V-shaped groove 30 allows the reflected lights L1 and L2 to stand up on the peripheral wall surface 11 of the lamp shade 2 so that they can be viewed even in a backlit state. Further, the upper surface 14 of the base 4 described above is mirror-finished, and the light L transmitted from the light transmitting hole 21 is reflected by the upper surface 14 of the base 4 and is formed on the peripheral wall surface 11 of the lamp shade 2. By irradiating the groove 30, the peripheral wall surface 11 is made to stand up and can be viewed.

  In the illumination device 1 of the above-described embodiment, the shape of the lamp shade 2 is a hollow substantially spherical shape, but in the illumination device 41 of another embodiment described below, the shape of the lamp shade 2 is a hollow cone shape with a sharp tip. Is different. In the structure of the illuminating device 41 of other embodiment, the same code | symbol as the illuminating device 1 of embodiment mentioned above is attached | subjected, and duplication description is abbreviate | omitted. FIG. 9 is a front view showing an illumination apparatus according to another embodiment. FIG. 10 is a perspective view showing a lighting state of a lighting apparatus according to another embodiment.

  As shown in FIG. 9, the illumination device 41 according to another embodiment is formed in a hollow conical shape with a sharp tip, and the lamp shade 2 and the lamp shade 2 having a shape that is temporarily reduced in diameter on the lower peripheral surface are placed. It comprises a base 4 on which the light emitter 3 is erected. On the front surface of the peripheral wall surface 11 of the lamp shade 2, the circular holes 22 are densely drilled in a spiral shape from the upper side to the lower side, and the cherry blossom petal-shaped holes 26 are drilled at regular intervals. Yes. Further, a number of substantially elongated holes 25 are formed in the rear surface of the peripheral wall surface 11 in the vertical direction and the horizontal direction from the upper side to the lower side. A large number of upwardly rising circular holes 22 are formed on both sides of the elongated hole. Furthermore, the groove 30 (not shown) of a fixed interval is formed in the peripheral wall surface 11.

  When the lamp 3 is turned on in the dark room, as shown in FIG. 10, the light L transmitted from the elongated hole 25 on the rear surface of the peripheral wall surface 11 is projected onto the peripheral wall surface W as an elongated light extending in the vertical and oblique directions. In addition, the light L transmitted from a large number of circular holes 22 formed on both sides of the elongated hole 25 separates the V-shaped projection image 51 due to the shape of the filament on the ceiling surface R, the wall surface W, and the floor surface F away from the lamp shade. As it is, it can be projected gradually and gradually so as to overlap. The aggregate of the projected images 51 in the shape of filaments can be viewed as a model in which a peacock like a picture has its wings spread. Moreover, the light L1 from the light transmission hole 21 travels while the light L1 is reflected on the V-shaped groove 30 of the peripheral wall surface 11, and is further diffusely reflected by the ceiling surface R, the wall body W, and the floor surface F. When L2 reaches the V-shaped groove 30, the sharp conical shape of the tip of the lamp shade 2 is lifted up so that it can be viewed even in a backlit state. Further, the light L that has passed through the substantially elongated hole 25 and the cherry petal-shaped hole 26 projects the projected image 50 of the substantially elongated hole 25 and the projected image 52 of the cherry-petal shaped hole 26 onto the floor surface F, the wall surface W, and the ceiling surface R. By doing so, it is possible to create and appreciate a complex projected image such as a painting by a synergistic effect with the projected image 51 of the previous filament.

  Although the lamp shade is ceramic, the material is not particularly limited, and an inorganic material, resin, or the like may be used. The shape of the lamp shade 2 is not limited to a substantially hollow spherical shape or a hollow conical shape having a sharp tip, and may be, for example, a hollow cylindrical shape or a hollow inverted conical shape.

  The translucent hole 21 is not limited to the substantially circular hole 22, the substantially star-shaped hole 23, the substantially crescent-shaped hole 24, the substantially elongated hole 25, and the cherry petal-shaped hole 26. However, the present invention is not limited to these shapes.

  Further, the light transmitting hole 21 can be projected in an expanded shape to project a virtual image having the shape of the filament 6 by the pin pole effect. However, since the amount of light is small, the contrast of the virtual image becomes dark.

  As the illuminant, an incandescent lamp having a diamond-shaped filament 6 is used, but an illuminating lamp such as a fluorescent lamp, an LED illuminating lamp, or an organic EL illuminating lamp may be used.

  When the diameter of the circular hole is small, the shape of the filament 6 of the lamp is projected on the projection plane by the pinhole effect. For example, when the filament 6 has a rhombus shape, a substantially V-shaped pattern is projected. By changing the diameter of the hole, the size and brightness of the virtual image can be adjusted.

  In addition, although marble was used for the base, artificial marble, inorganic material, resin, or the like may be used, and the material is not limited.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the specific embodiments, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.

It is a front view which shows the illuminating device which concerns on this Embodiment. It is the sectional view on the AA line of FIG. It is a bottom view which shows the illuminating device which concerns on this Embodiment. It is sectional drawing which shows the principal part of the illuminating device which concerns on this Embodiment. It is a block diagram explaining the projection from a single translucent hole. It is a block diagram explaining the projection from two light transmission holes. It is sectional drawing which shows a translucent hole. (A) It is a top view which shows the principal part of the illuminating device which concerns on this Embodiment. (B) It is BB sectional drawing of Fig.8 (a). It is a front view which shows the illuminating device which concerns on other embodiment. It is a perspective view which shows the lighting state of the illuminating device which concerns on other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,41 Lighting device 2 Lamp shade 3 Light emitter 4 Base 5 Lamp wiring 6 Filament 10 Top part 11 Peripheral wall surface 12 Bottom part 13 Protrusion 14 Upper surface 15 Projection image 20 Hole 21 Translucent hole 22 Circular hole 23 Star-shaped hole 24 Crescent-shaped hole 25 Slotted hole 26 Cherry petal shaped hole 30 Groove 31 Apex angle 32 Slope 50 Projected image 51 of slotted hole 51 V-shaped projected image 52 Projected image of cherry petal shape F Floor surface W Wall surface R Ceiling surface

Claims (1)

In a lighting device comprising a hollow lamp shade, a light emitter installed in the lamp shade, a base on which the light emitter is erected , and a wall surface arranged around the lamp shade ,
The lamp shade is made of ceramic and formed into a hollow cone with a sharp tip, and a plurality of grooves having a V-shaped cross section are formed at equal intervals in the circumferential direction of the outer peripheral wall surface .
The apex angle of the outwardly convex V-shape formed between the grooves is formed so as to gradually increase as the curvature of the peripheral wall surface increases.
A plurality of longitudinal elongated holes arranged in series in the vertical direction and a plurality of lateral elongated holes provided on both sides of the longitudinal slot are formed on the rear surface of the peripheral wall surface, and A number of circular holes are drilled on both sides of the longitudinal slot and the lateral slot,
The transverse elongated holes are formed as a set of two elongated holes formed at the same height on both sides of the longitudinal elongated hole, and a plurality of sets are formed in the vertical direction.
The luminous body filament has an inverted V shape,
In the front surface of the peripheral wall, a large number of circular holes densely spiraled from above to below are drilled,
The longitudinal direction of the elongated hole and the transverse direction of the elongated hole and the circle the wall surface when light is irradiated from the light emitter is transmitted through the said the longitudinal direction of the elongated hole transverse of the elongated hole and the circular hole An illumination device characterized in that it is configured to project projection light shaped like a peacock with its wings expanded in shape with a hole.

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