TW201408944A - Cover for illumination and illumination apparatus - Google Patents

Abstract

This disclosure provides a cover for illumination and an illumination apparatus for inhibiting glare, and an enhanced performance effect is achieved by means of a light design so as to enhance an additional value of the illumination apparatus. The illumination apparatus includes multiple light emitting elements, disposed on a substrate; a cover for illumination, disposed with a light-transmitting control unit, which are formed in a way that mixing a region with a lower light-transmitting rate of the light emitted by the light emitting element and a region with higher light-transmitting rate of the light emitted by the light emitting element; and an optical control component, disposed between the light emitting elements and the cover for illumination.

Description

Lighting cover and lighting device

An embodiment of the present invention relates to an illumination device in which a light-emitting element such as an LED (Light Emitting Diode) is used as a light source.

Recently, with the increase in output and efficiency of LEDs, illumination devices using LEDs as light sources have been developed, which can be used indoors or outdoors and can be expected to have a long life. This illuminating device mounts a plurality of LEDs on a substrate to obtain a predetermined brightness, and is used, for example, as a ceiling light for an ordinary house mounted on a ceiling surface or the like.

In such an illuminating device, since the luminance of the LED as the light source is high and the directivity of the emitted light is strong, the diffusing material is disposed on the front surface side of the LED in order to uniformly disperse the light. )).

Prior art literature

Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. 2009-117160

However, with the diversification of lifestyles, as a function of these lighting devices, it is expected to not only simply illuminate the surroundings but also design the light. (design) to improve the performance of the show, so as to be able to increase the added value as a lighting device.

The present invention has been made in view of the above problems, and an object thereof is to provide an illuminating device capable of suppressing glare to improve the effect of glare, and to provide added value as a creative illuminating device.

A lighting device according to an embodiment of the present invention includes: a plurality of light emitting elements mounted on a substrate; and a lighting cover provided with a light transmission control unit, wherein the light transmission control unit has a relatively high transmittance of light irradiated from the light emitting element A small area is formed in such a manner that a region having a relatively large transmittance of light exists, and an optical control member is provided between the light-emitting element and the illumination cover.

A lighting cover according to an embodiment of the present invention is characterized in that a light-transmitting layer having a plurality of openings is formed on one surface of a transparent substrate, and a visible light transmittance of a region other than the opening is 80% or less.

According to the embodiment of the present invention, it is possible to provide an illumination device capable of suppressing glare to improve the effect of the performance, and to increase the added value as the illumination device.

Further, according to the embodiment of the present invention, it is possible to provide a lighting cover and an illuminating device, which can increase the added value as an illuminating device that does not reduce the illuminance of the irradiation surface.

1‧‧‧ Ontology

2‧‧‧Light source department

3‧‧‧Diffuser member (lens member)

4‧‧‧Lighting device

5‧‧‧Lighting device cover

6‧‧‧Installation section (Adapter guide)

7‧‧‧shade

11‧‧‧ openings

12‧‧‧ Flat Department

13‧‧ ‧ step department

14‧‧‧ recess

15‧‧‧Flexible components

21‧‧‧Substrate

22, 22a‧‧‧Lighting elements (LED)

31‧‧‧ 突条部

33‧‧‧ Flat Department

41‧‧‧ circuit board

42‧‧‧ circuit parts

51‧‧‧ side wall

52‧‧‧ front wall

53‧‧‧ openings

61‧‧‧Clock mouth

62‧‧‧Electrical Auxiliary Parts

71a‧‧‧A region with relatively low light transmission

71b‧‧‧A region with a relatively high light transmission rate

75‧‧‧Light cover acceptor

A‧‧‧Adapter

A1‧‧‧ card stop

C‧‧‧ appliance mounting surface (ceiling surface)

Cb‧‧‧Wiring device (main body of ceiling lamp holder)

S‧‧‧ screws

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

Fig. 2 is an exploded perspective view showing the lighting device according to the embodiment of the present invention.

3 is a schematic plan view showing the illuminating device according to the embodiment of the present invention, with the cover member and the lighting device cover removed, as viewed from below.

4 is a cross-sectional view showing a lighting fixture according to an embodiment of the present invention.

Fig. 5 is a cross-sectional view showing an enlarged portion A of Fig. 4;

Hereinafter, an embodiment of the present invention will be described with reference to Figs. 1 to 5 . In each of the drawings, a wiring connection relationship by a wire or the like may be omitted. In addition, the same portions are denoted by the same reference numerals and the description thereof will not be repeated.

The lighting fixture of the present embodiment is a lighting fixture for an ordinary house that is attached to a ceiling lamp holder main body, and is illuminated by light emitted from a light source unit that is provided on the appliance mounting surface and serves as a lighting fixture. In the wiring device, the light source unit has a plurality of light emitting elements mounted on a substrate.

In FIGS. 1 to 4 , the lighting fixture includes a main body 1 , a light source unit 2 , a diffusion member (for example, a transmission refracting member) 3 , a lighting device 4 , a lighting device cover 5 , a mounting portion 6 , and a lamp cover 7 . Further, the lighting fixture includes an adapter A that is electrically and mechanically connected to the ceiling holder main body Cb, and the ceiling holder main body Cb is provided on the ceiling surface C as an appliance mounting surface. Such a lighting fixture has an outer appearance of a circular circular shape, and the front surface side is an irradiation surface of light, and the back surface side is a mounting surface of the ceiling surface C.

The main body 1 is a circular chassis formed of a flat plate of a metal material such as a cold-rolled steel sheet, and a circular opening 11 is formed in a substantially central portion thereof, and the opening 11 is provided with a mounting portion 6 to be described later. Further, on the outer peripheral side of the flat portion 12 on the inner surface side on which the light source unit 2 is mounted, a stepped portion 13 facing the back side is formed, and a groove-shaped recess 14 is formed. Further, in the body 1 On the back side, an elastic member 15 is provided.

The light source unit 2 includes a substrate 21 and a plurality of light-emitting elements 22 mounted on the substrate 21 (in FIG. 2, the illustration of the light-emitting elements 22 is omitted). The substrate 21 is disposed such that four circular arc-shaped substrates 21 having a predetermined width dimension are butted together, and are formed in a substantially circular shape as a whole. In other words, the substrate 21 formed in a substantially annular shape as a whole includes four divided substrates 21 .

By using the substrate 21 thus divided, the heat shrinkage can be absorbed by the divided portion of the substrate 21 to suppress deformation of the substrate 21. Further, it is preferable to use the substrate 21 divided into a plurality of sheets, but it is also possible to use a single substrate which is integrally formed into a substantially annular shape.

The substrate 21 includes a flat plate of a glass epoxy resin (FR-4) as an insulating material, and a wiring pattern is formed on the surface side by a copper foil. Further, a white resist layer functioning as a reflective layer is applied to the wiring pattern, that is, on the surface of the substrate 21. Further, in the case where the material of the substrate 21 is an insulating material, a ceramics material or a synthetic resin material can be applied. Further, in the case of using a metal substrate, a base substrate made of a metal having a good thermal conductivity of aluminum or the like and having an excellent heat dissipation property is laminated on one surface of the base plate.

The light-emitting element 22 is an LED and is a surface mount type LED package. The LED package is mounted in a plurality of rows along the circumferential direction of the plurality of annular substrates 21, that is, on a substantially circumference around the mounting portion 6, and in the present embodiment, is spread over the inner circumference side and the outer circumference. Install these two columns on the side. Further, in the LED package, an LED package having a white color and a bulb package of a bulb color are used, and these LED packages are alternately arranged, and adjacent light-emitting elements 22 of the respective rows are disposed at substantially equal intervals. The color adjustment can be performed by adjusting the current flowing through the white LED package and the bulb color LED package.

In addition, on a specific substrate 21 (the right side in FIG. 3), a hair for a constant light is attached. Light element 22a. For the light-emitting element 22a, the same LED package as the LED package of the bulb color of the main light source mounted in an annular shape is used. Thereby, the sharing of the components is achieved.

In addition, the light-emitting elements 22 do not necessarily need to be mounted in a plurality of columns. For example, it may be installed in one row along the circumferential direction. The number or number of columns of the light-emitting elements 22 can be appropriately set in accordance with the desired output.

The LED package generally includes an LED chip disposed on a body formed of ceramic or synthetic resin, and a light transmissive resin for molding an epoxy resin or a silicone resin. The LED wafer is sealed. The LED chip is a blue LED chip that emits blue light. In the translucent resin, a phosphor is mixed in order to emit light of white or bulb color.

In addition, the LED can be mounted directly on the substrate 21, and can also be mounted as a bullet-type LED. The mounting method or form is not particularly limited.

The diffusion member 3 is a lens member, and includes, for example, an insulating transparent synthetic resin such as polycarbonate or acryl resin, and has reinforced insulating properties. Further, the diffusion member 3 is integrally formed in a substantially annular shape along the arrangement of the light-emitting elements 22, and is disposed so as to cover the entire surface of the substrate 21 by including the light-emitting elements 22.

Further, the lens member is formed in a substantially annular inner peripheral side portion and an outer peripheral side portion, and two ridge portions 31 which are formed in a mountain shape and have a fixed cross-sectional shape are formed continuously in the circumferential direction with respect to the light-emitting element 22. Therefore, the U-shaped groove 32 is disposed to face the plurality of light-emitting elements 22, and the plurality of light-emitting elements 22 are housed in the U-shaped groove 32 and covered.

Further, the flat portions 33 extending in the width direction are formed from the ridge portions 31, thereby covering the entire surface of the substrate 21.

According to the lens member configured in this manner, as shown in FIG. 5, the light emitted from the plurality of light-emitting elements 22 is diffused and radiated mainly in the inner circumferential direction and the outer circumferential direction on the circumference by the ridge portion 31. That is, the light emitted from the light-emitting element 22 is: the main direction is such that the light-emitting element 22 is disposed The center of the ring is diffused and radiated in the radial direction of the origin.

Therefore, the uniformity of the irradiation light of the light emitted from the plurality of light-emitting elements 22 can be improved by the lens member. Further, it is possible to suppress the graininess based on the brightness of each of the light-emitting elements 22. In this case, it is preferable to set the light distribution angle by diffusion to about 120 to 160 degrees.

Further, in the diffusion member 3, the flat portion 33 is formed to cover the entire surface of the substrate 21. Therefore, the charging portion is covered by the diffusion member 3 having the reinforced insulating property and is protected.

Further, the diffusion member 3 may not be integrally formed into a substantially annular shape. For example, the diffusion member 3 may also be formed separately for each of the substrates 21 corresponding to the divided substrates 21. At this time, each of the plurality of light-emitting elements 22 mounted on one substrate 21 is continuously covered by the diffusion member 3.

Further, the diffusion member 3 is not limited to the lens member, and prism or the like may be applied so that the diffusion member 3 has the anisotropy of the irradiation range of the light-emitting element 22.

As shown in FIGS. 4 and 5, the light source unit 2 configured as described above is typically disposed around the mounting portion 6, and the mounting surface of the light-emitting element 22 is disposed toward the front surface side, that is, toward the downward irradiation direction. Further, the back surface side of the substrate 21 is mounted in surface contact with the flat portion 12 on the inner surface side of the main body 1 so as to be in close contact with each other. Specifically, the diffusion member 3 is overlapped from the front surface side of the substrate 21, and the diffusion member 3 is attached to the body 1 by a fixing means such as a screw S, whereby the substrate 21 is sandwiched between the body 1 and the diffusion member 3. It is fixed by pressing. That is, the substrate 21 and the diffusion member 3 are fastened by one screw S.

Therefore, the substrate 21 is thermally coupled to the body 1, and heat from the substrate 21 is conducted from the back side to the body 1 to dissipate heat. In addition, the surface contact of the substrate 21 with the body 1 is not limited to the case where the entire surface of the substrate 21 contacts the body 1. It can also be a partial surface contact.

In addition, the flat portion 33 of the diffusion member 3 is in surface contact with the mounting surface side of the substrate 21 so that heat can be transferred from the mounting surface side of the substrate 21 to the diffusion member. 3, and is distributed through the diffusion member 3. In other words, heat can be dissipated from the front surface side of the substrate 21.

As shown in FIG. 2 to FIG. 4, the lighting device 4 includes a circuit board 41, a control integrated circuit (IC) attached to the circuit board 41, a transformer, a capacitor, and the like. Circuit component 42. The circuit board 41 is formed in a substantially arc shape so as to surround the periphery of the mounting portion 6, and is electrically connected to the adapter A side, and is connected to a commercial AC power source via the adapter A. Therefore, the lighting device 4 receives the AC power supply to generate a DC output, and supplies the DC output to the light-emitting element 22 via a wire to perform lighting control of the light-emitting element 22.

Such a lighting device 4 is disposed between the mounting portion 6 and the light source portion 2 (that is, the substrate 21).

As shown in FIG. 2 and FIG. 4, the lighting device cover 5 is formed in a substantially short cylindrical shape by a metal material such as a cold-rolled steel plate, and is attached to the main body 1 so as to cover the lighting device 4. The side wall 51 is inclined so as to expand toward the back side, and the opening 53 is formed in the front wall 52 so as to correspond to the attachment portion 6. Therefore, a part of the light emitted from the light-emitting element 22 is reflected by the side wall 51 toward the front surface side and is effectively utilized. Further, an arcuate guide recessed portion that is concave toward the back side is formed on the periphery of the opening portion 53.

The attachment portion 6 is an adapter guide formed in a substantially cylindrical shape, and an engagement opening 61 through which the adapter A is inserted and engaged is provided in a central portion of the adapter guide portion. The adapter guide portion is disposed corresponding to the opening 11 formed in the central portion of the body 1. A susceptor is formed on the outer peripheral portion of the adapter guide portion so as to protrude from the outer peripheral portion, and an electric device such as an infrared remote control signal receiving portion or an illuminance sensor is disposed on the susceptor. Auxiliary part 62.

Further, the mounting portion 6 is not necessarily a member called an adapter guide portion or the like. For example, the opening formed in the main body 1 or the like may be mainly a member or a portion that faces the ceiling holder main body Cb as a wiring device and that engages the adapter A.

The globe 7 is formed of a material having light transmissivity, such as acrylic resin, and having a milky white color and diffusing property, and is formed into a substantially circular shape.

Further, the shade 7 is detachably attached to the outer peripheral edge portion of the main body 1 so as to cover the front surface side of the main body 1 including the light source unit 2. Specifically, by rotating the shade 7 , a cover attachment (not shown) provided in the cover 7 is attached to the cover acceptor 75 , and the cover acceptor 75 is disposed on the outer peripheral edge of the body 1 . The recess 14 is.

A light transmission control unit 71 is formed on the inner surface of the globe 7. The light transmission control unit 71 is formed such that a region 71a having a relatively small light transmittance and a region 71b having a relatively large light transmittance are mixed.

Specifically, the light transmission control unit 71 is formed by performing silk printing on the inner surface side of the globe 7, and the transmittance of the plurality of lights is relatively large in the region 71a where the light transmittance is relatively small. Area 71b. A region 71a having a relatively small light transmittance is, for example, a portion coated with white ink, and a region 71b having a relatively high light transmittance is a portion not coated with white ink, and the portion is coated with white ink. The area is formed by spreading a plurality of (innumerable) small circular shapes.

In other words, a plurality of small circular portions are left on the inner surface side of the globe 7, and white ink is applied.

Therefore, the transmission of light to the region 71a having a relatively small transmittance of light is suppressed, and the transmission of light to the region 71b having a relatively large transmittance of light, that is, the portion of the plurality of small circular portions can be satisfactorily transmitted. get on.

Here, the relative light transmittance is relatively small, and the relative relationship between the regions 71a and 71b is, for example, a region in which the light transmittance is relatively small, which is formed by a predetermined transmittance. The irradiation light from the light source unit 2 is diffused and irradiated to the lower irradiation surface. However, the irradiation light may be formed so as to be almost impermeable, that is, substantially non-transmissive.

In other words, the region other than the region 71b in which the light transmittance of the globe is relatively large is formed to be translucent, milky white, and diffuse.

In the molding of the lampshade 7, the wire is formed on the back side of a sheet such as an acrylic resin as a material thereof so as to form a plurality of small-circular portions (portions not coated with ink). The screen printing is followed by press forming into a predetermined shape having a substantially circular shape.

Further, the region 71a having a relatively small light transmittance and the region 71b having a relatively large light transmittance can be formed in an opposite relationship. That is, as a region where the transmittance of light is relatively small, a plurality of small-circular portions may be formed. In this case, the diameter of the small circular shape may be appropriately set according to the design.

Further, a region 71b having a relatively high light transmittance can be formed by a small hole penetrating through the inside and outside of the globe 7. In this case, it is also possible to form a region in which the transmittance of light is relatively small and a region in which the transmittance of light is large.

As described above, the configuration in which the region 71a having a relatively small light transmittance and the region 71b having a relatively large light transmittance are mixed may be of various configurations, and is not limited to a specific configuration.

Further, the distance between the diffusion member 3 and the globe 7 is set to 20 mm to 60 mm, preferably set to 30 mm to 50 mm. Thereby, the uniformity of the irradiation light becomes good, and the heat transmitted from the mounting surface side of the substrate 21 to the diffusion member 3 is efficiently radiated through the globe 7 .

Further, the globe 7 is a transparent substrate including a mirror surface on the surface thereof, for example, an inner surface of a substrate having high permeability such as a transparent acrylic resin, and a light-transmissive film including a resin sheet having a plurality of openings 71b. Further, the transparent acrylic resin preferably has an internal transmittance of the acrylic resin and a member having a high external transmittance including a surface (interface), or a surface (interface) including an optical mirror surface and a glossy, transparent Highly material. That is, transparent As long as the acrylic resin has low diffusibility and can be seen through the shade 7 in the base material of the article located in front of the cover, the surface of the acrylic resin can be formed into a rough surface.

The light-transmissive film 71a formed on the inner surface of the globe 7 is, for example, a white film formed by a silk screen print or the like. The plurality of openings 71b formed in the light-transmissive film 71a are formed to have a size of about 0.5 mm to 5 mm in diameter. When the opening 71b is smaller than 0.5 mm, the light passing through the opening 71b is weakened in a state where the shade 7 is attached to the luminaire main body, and the ratio of the light-emitting elements 22 existing on the straight line connecting the viewpoint and the opening 71b is obtained. Will be less. Therefore, it is difficult to obtain light that the light-emitting element 22 shines brilliantly through the opening portion 71b. On the other hand, when the opening 71b is 5 mm or more, there is a fear that the plurality of light-emitting elements 22 are irradiated from the one opening 71b, and therefore, the glare is more sensation than the brilliance. Therefore, it is preferable that the opening portion 71b not subjected to screen printing is smaller than the light-emitting element 22, and the opening diameter of the opening portion 71b is preferably about 0.7 mm to 2 mm.

Further, in the present embodiment, the formation region of the opening portion 71b is formed in a range covering at least a region facing the light-emitting element 22 mounted along the circumferential direction of the annular substrate. That is, the opening portion 71b is not formed in the central region surrounded by the light-emitting element 22, that is, in the central region of the globe 7. Further, the openings 71b of various sizes formed in the circumferential direction of the globe 7 that widely cover the region facing the light-emitting element 22 are randomly and densely formed. In the region in which the opening portion 71b is formed, the ratio of the opening portion 71b to the light transmissive film is preferably 0.3% to 0.6%. When the number of the openings 71b is less than 0.3%, the ratio of the light-emitting elements 22 that does not exist on the straight line connecting the viewpoint and the opening 71b becomes high. Therefore, the number of openings in which the light is not sensible is increased, and the number of openings that emit light is changed. less. On the other hand, when the opening 71b exceeds 0.6%, the opening 71b of the light is perceived to be extremely large, and the opening 71b in which the light is not perceived is reduced. Therefore, compared with the flare feeling which is perceived by the flickering of the plurality of independent opening portions 71b by the viewpoint of the movement, the number of flickers is reduced and the glare is felt, and the feeling of discomfort is improved. Therefore, it can be said that the formation region of the opening portion 71b is preferably 0.3% to 0.6% with respect to the light transmissive film. Further, in the entire embodiment, the ratio of the opening 71b in the globe 7 is about 0.5%, and when the opening 71b is not formed in the central portion, the opening 71b in the entire globe 7 is preferably about 0.4%.

Further, the transmittance of the light-shielding film formed by screen printing of the globe 7 is preferably 40% to 80% or less. In the present embodiment, the transmittance at a wavelength of 380 nm to 780 nm is formed to be about 60%. When the transmittance is 40% or less, the illuminance immediately below is low, and the luminous flux is too low, so that it is difficult to use it as a lighting fixture. On the other hand, when the transmittance is 80% or more, the illuminance immediately below is high, and the light beam is sufficient, and the light from the light-emitting element 22 is efficiently irradiated onto the irradiation surface. However, the difference in luminance between the opening 71b (light-emitting surface luminance) and the screen printing region, that is, the light-transmitting layer 71a region (background luminance), and the difference in illuminance are small, so that the splendor due to light leaking from the plurality of openings cannot be satisfied. Shining value-added effects.

In this way, it is necessary to satisfy these conditions, which are required to ensure the illuminance required as a general lighting fixture, and to have a brilliance which is caused by the unscreened opening through the transparent lampshade 7. Irradiation light from the light-emitting element 22 seen in the portion 71b is caused.

The cover 7 is detachably attached to the outer peripheral edge portion of the main body 1 so as to cover the front surface side of the main body 1 including the light source unit 2. Specifically, by rotating the shade 7 , a cover attachment (not shown) provided in the shade 7 is attached to the cover acceptor 75 , and the cover acceptor 75 is disposed on the outer peripheral edge of the main body 1 . The recess 14 is.

Further, the configuration in which the opening 71b of the globe 7 and the light-transmitting layer 71a are mixed may be various structures, and is not limited to a specific configuration. For example, it is also possible to adopt a regular arrangement in which the openings 71b are arranged. Further, a boring process for processing the surface into a mirror surface may be performed at a position facing the region of the shade 7 in which the opening 71b is formed.

The adapter A is electrically and mechanically connected to a portion of the ceiling holder main body Cb provided on the ceiling surface C by a hook provided on the upper surface side, and has a substantially cylindrical shape; and, on both sides of the peripheral wall A pair of locking portions A1 are provided so as to always protrude toward the outer peripheral side by a built-in spring. The locking portion A1 is immersed by operating the lever provided on the lower surface side. Further, a power cord connected to the lighting device 4 is led out from the adapter A, and is connected to the lighting device 4 via a connector (see FIG. 3).

Next, the state in which the lighting fixture is attached to the ceiling surface C will be described with reference to Fig. 4 . First, the adapter A is electrically and mechanically connected to the ceiling holder main body Cb previously provided on the ceiling surface C. From this state, the engagement opening 61 of the adapter guide portion of the attachment portion 6 is aligned with the adapter A, and the device body is pushed up by the hand from below until the locking portion A1 of the adapter A is securely carded. The mounting operation is performed until the engagement opening 61 of the adapter guide portion is engaged. Then, the lamp cover 7 is attached to the body 1. The state in which the mounting is completed is the state shown in FIG. 4. At this time, the elastic member 15 is interposed between the ceiling surface C and the back side of the main body 1 in an intimate state, and the lighting fixture is fixed to the ceiling surface C.

Further, when the lighting fixture is removed, the shade 7 is removed, and the operating lever provided on the adapter A is operated to release the engagement of the locking portion A1 of the adapter A, thereby disassembling the lighting fixture.

When electric power is supplied to the lighting device 4 in a mounted state in which the lighting fixture is attached to the ceiling surface C, the light-emitting element 22 is energized via the substrate 21, and each of the light-emitting elements 22 is turned on. The light emitted from the light-emitting element 22 is diffused in the radial direction by the diffusion member 3 that continuously covers the plurality of light-emitting elements 22, and is radiated toward the front surface side. The light that is radiated toward the front surface side is mainly transmitted through the light-shielding control portion 72 of the globe 7 through a plurality of small-circle regions 71b having a relatively large light transmittance, and is transmitted through the globe 7. At this time, the light irradiated from the light-emitting element 22 is deflected, dispersed, reflected by the diffusion member 3, and directed toward the respective rows. In the forward direction, the outer side is illuminated via the lampshade 7.

When such illumination light is viewed from below the illumination device, the light-emitting element 22 is directly viewed through the region 71b which is arranged on the straight line and the light transmittance of the light-emitting element 22 is relatively large, and strong light is perceived. On the other hand, even when there is no light source on the straight line of the region 71b and the fulcrum having a relatively high transmittance of the connected light, the light of the light-emitting element 22 can be diffused by the diffusion member, and the weak light can be perceived. . By using the diffusion member as a lens, it is possible to directly view the light from the light-emitting element 22 from various angles, so that the frequency or intensity of the blaze can be improved.

According to this configuration, the opening portion 71b is configured such that when the viewpoint, the light-emitting element 22, and the region 71b having a relatively high transmittance are located on a straight line, strong light is perceived, and if it is diffused by the diffusion member, When the diffused light of the light-emitting element 22 and the region 71b having a relatively large viewpoint and transmittance are located on a straight line, light having a weak brilliance is perceived, and the light-emitting element is not present on a straight line connecting the region 71b having a relatively large transmittance to the viewpoint. 22 and the diffused light from the light-emitting element, the sparkle light is not felt.

In this way, in the case of looking up the illumination device or in the case of viewing from the side of the illumination device, there is a portion in which the light that sees the light-emitting element 22 as a dot is mixed and shines brilliantly with strong light. When the light-emitting element 22 is swept in a portion that is brilliantly shimmered with weak light and a portion that does not feel glare, the visual observation can be performed in a state where glare caused by the light-emitting element 22 is suppressed. In addition, by moving the viewpoint, it is felt that the area of the glare changes the intensity of the light or repeatedly, so that by changing the position of the observation, it is possible to obtain a decorative effect in which the parts are brilliantly and irregularly exhibited the blazed intensity. Further, the uniformity of the irradiation light can be improved by the light passing through the region 71a having a relatively small transmittance of light. Further, in the present embodiment, by using the two different color light-emitting elements 22, it is possible to see that the plurality of openings 71b are mixed with the white light of the white light and the light of the light bulb color to flicker brilliantly. Thus, in terms of design, Get more excellent results.

On the other hand, since the back side of the substrate 21 is in surface contact with the body 1, heat generated from the light-emitting element 22 is efficiently conducted to the body 1, and heat is radiated over a large area. Further, since the step portion 13 is formed along the outer circumference of the substrate 21 in the vicinity of the outer peripheral side of the substrate 21, the heat dissipation area can be increased by the step portion 13, and the heat radiation effect of the outer peripheral portion of the body 1 can be improved. In addition to this, the step portion 13 can exhibit the reinforcing effect of the body 1.

Further, since the lighting device 4 is disposed between the mounting portion 6 and the substrate 21, the lighting device 4 is relieved of the influence of heat from the substrate 21. This is because the heat of the substrate 21 is caused by the tendency to conduct in the outer circumferential direction of the body 1 and to dissipate heat.

In addition, since the flat portion 33 of the diffusion member 3 is in surface contact with the mounting surface side of the substrate 21, heat can be dissipated from the front surface side via the diffusion member 3 from the mounting surface side of the substrate 21. Further, at this time, the diffusion member 3 covers the entire surface of the substrate 21, and thus the charging portion is protected.

As described above, according to the present embodiment, when looking up the illumination device, it can be seen that the light is designed to be brightly blazed by the light of the point light source, and a decorative effect can be obtained, thereby improving the effect of the performance. Further, it is possible to provide a lighting fixture capable of improving the uniformity of the irradiation light by providing the diffusion member 3 that continuously covers the light-emitting element 22.

The present invention is not limited to the configurations of the above-described embodiments, and various modifications can be made without departing from the spirit and scope of the invention. For example, the shape of the region 71b in which the light transmittance is relatively large in the light transmission control portion 71 is not limited to a circular shape, and the pattern of the hole of the light transmission control portion formed on the entire globe can be applied. .

1‧‧‧ Ontology

2‧‧‧Light source department

3‧‧‧Diffusion members

4‧‧‧Lighting device

5‧‧‧Lighting device cover

6‧‧‧Installation Department

7‧‧‧shade

11‧‧‧ openings

12‧‧‧ Flat Department

13‧‧ ‧ step department

15‧‧‧Flexible components

21‧‧‧Substrate

22‧‧‧Lighting elements (LED)

41‧‧‧ circuit board

42‧‧‧ circuit parts

61‧‧‧Clock mouth

75‧‧‧Light cover acceptor

A‧‧‧Adapter

A1‧‧‧ card stop

Cb‧‧‧Wiring appliances

Claims (5)

A lighting device characterized by comprising: a plurality of light-emitting elements mounted on a substrate; a lighting cover provided with a light transmission control unit, wherein the light transmission control unit is configured to transmit light from the light-emitting element relative to each other A small area is formed in such a manner that a region having a relatively large transmittance of light exists, and an optical control member is provided between the light-emitting element and the illumination cover. The illumination device according to claim 1, wherein the light transmission control unit is formed in the illumination cover that covers the light-emitting element. A lighting cover characterized in that a light transmitting layer having a plurality of openings is formed on one surface of a transparent substrate, and a visible light transmittance of a region other than the opening is 80% or less. The lighting cover according to claim 3, wherein the opening formed in the light transmitting layer has a diameter of 0.5 mm to 5.0 mm. A lighting device, comprising: an apparatus body; a light source body, wherein a plurality of light-emitting elements mounted on the substrate are mounted to the apparatus body; and the lighting cover according to claim 3 or 4, The light source body is covered and mounted on the fixture body.