JP5579461B2 - Reflective lighting fixture - Google Patents

Description

  The present invention relates to a reflector lighting fixture, and more particularly to a reflector lighting fixture that efficiently reflects light from a light source.

As a lighting device that replaces an incandescent light bulb, a lighting fixture using an LED (light emitting diode) element as a light source has been used. In a reflective vehicle lamp unit in which a light emitting element is arranged in a direction orthogonal to the optical axis of the reflecting mirror, such as a vehicle lamp unit, the front of the reflecting mirror is not incident on the reflecting mirror from the light emitting element. The proportion of direct light going to the side space increases.
Therefore, a vehicle lamp unit in which a light emitting element is arranged on the inner side in the vehicle width direction on the optical axis has been proposed in order to increase the efficiency while sufficiently ensuring the brightness of the hot zone of the light distribution pattern of the light emitting element. (Patent Document 1, paragraph 0033, etc.). This vehicular lamp unit includes a reflector (reflecting mirror) that reflects light from the light emitting element forward, and a direct light control member that controls direct light toward the front space of the reflector without being incident on the reflector. It has.

JP 2008-226788

In the vehicular lamp unit of Patent Document 1, when the direct light control member is disposed in the vicinity of the LED element, the number of components is increased, and depending on the adjustment, the amount of light may be reduced, and light distribution control is sufficiently performed. The reflector must be made large, which can increase costs. On the other hand, in the case of upper lights used in large-scale buildings and the like, there are cases where a plurality of light emitters are arranged in order to ensure the required output. In this case, if the reflector is not enlarged, the glare will increase depending on the viewing angle. Become. For this reason, there existed a problem that the enlargement of a lighting fixture could not be avoided.
This invention is made | formed in view of the said situation, and it aims at providing the reflecting mirror type lighting fixture which can suppress glare with a small size.

In order to solve the above-described problems, a reflector-type lighting fixture of the present invention includes a reflector having a reflecting surface, a mounting plate for mounting the reflecting mirror, and a mounting surface of the mounting plate so as to face the inner surface of the reflecting mirror. A reflector illuminator having a plurality of reflector illuminators mounted in a housing, wherein the attachment plate is irradiated from a reflector illuminator disposed adjacently. that a direct light, has a blocking portion for blocking a portion of the direct light which is not reflected by the reflecting mirror disposed adjacent the reflector type emitters, the blocking portion than the edge portion of the reflecting surface Ru der those extending in the radiation direction of the reflector-type light fixture.
Moreover, it is preferable that the said light shielding plate is the said attachment plate which comprises the said reflective mirror type light-emitting body adjacent. In the reflecting mirror type lighting apparatus, the light shielding plate extends to a side farther from the LED package than an edge of the reflecting surface, and the outer surface of the reflecting mirror and the mounting surface are opposed to each other. It is preferable.
Furthermore, in the reflecting mirror type lighting apparatus according to any one of the above, the plurality of reflecting mirror light emitters includes a plurality of the plurality of reflecting mirror light emitters, and the same among the plurality of columns. In the row, a plurality of the reflector light emitters are arranged so that the irradiation directions of the light mainly emitted from the LED packages in the adjacent reflector light emitters are opposite to each other, and the reflectors do not interfere with each other. It is preferable that a plurality of the reflector light emitters are arranged densely in a range .
Moreover, in the above-described reflector-type luminaire, the reflector-type illuminator has a recess in which the mounting plate accommodates the LED package, and the optical axis of the LED package in the accommodated state is more than the direction perpendicular to the attachment plate. It is configured to face a direction close to the dividing surface of the reflecting mirror.
Moreover, in the said reflector-type illuminating device, as for a reflector-type light-emitting body, a mounting plate can be rotated independently.
In the above reflector lighting fixture, the reflector is obtained by dividing an umbrella-shaped reflecting surface, which is a rotating body, along the rotation axis.
In the present invention, a light emitting device constituted by sealing LED elements with resin is referred to as an LED package.

  According to this configuration, the mounting plate extends to the exit surface side to such an extent that direct light from the LED package can be blocked, and the outer surface of the reflecting mirror and the mounting surface are arranged to face each other. The mounting plate functions as a light blocking plate that blocks direct light leaking from the reflecting mirror. For this reason, light distribution control and glare can be suppressed while the size of the reflecting mirror is reduced.

The figure which shows the reflector type lighting fixture of Embodiment 1, (a) is a top view, (b) is AA sectional drawing of (a). The principal part enlarged view which shows the reflector type light-emitting body (unit) U which comprises the reflector type lighting fixture of Embodiment 1 The principal part expanded sectional view of the reflector type lighting fixture of Embodiment 2 Overall top view of reflector-type lighting fixture of Embodiment 3 The principal part perspective view of the reflector type lighting fixture of Embodiment 3 Overall top view of reflector-type lighting fixture of Embodiment 2 Sectional drawing of the principal part of the reflector type lighting fixture of Embodiment 4 Sectional drawing of the principal part of the reflector type lighting fixture of the modification of Embodiment 4 Sectional drawing of the principal part of the reflector type lighting fixture of Embodiment 5 The figure which shows the reflector type lighting fixture of Embodiment 6, (a) is a principal part top view, (b) is principal part sectional drawing.

(Embodiment 1)
As shown in FIG. 1 ((a) and (b)), the reflector-type lighting fixture 10 has 20 rows of reflector-type light emitter units arranged in 4 rows and 5 columns in the housing 1. It is a thing. In this reflector-type lighting fixture, each reflector-type illuminator unit is mounted in the housing 1 on the surface including the reflector 5 and the end face 5e of the reflector 5 and a mounting plate 3 for attaching the reflector 5a. And the LED package 6 attached to the attachment plate 3 so as to face the inner surface of the reflecting mirror 5. The mounting plate 3 extends to the light emitting surface side of the light from the LED package 6 to the extent that the direct light L from the LED package 6 can be blocked, and the outer surface 5b of the reflecting mirror 5 and the mounting plate 3. It arrange | positions so that the attachment surface 3b of this may oppose. The reflecting mirror 5 is configured by dividing the reflecting surface, which is a rotating body, along the rotation axis and attaching the reflecting surface to the mounting plate 3 so that the divided surfaces are close to each other. Here, reference numeral 2 denotes a lid, which is installed so as to be engaged with the housing 1, and is constituted by a laminated body of a lens 2a, a filter 2b, and a protective glass 2c. Of the light from the light source, the light directed to one region divided by the plane including the optical axis is reflected by the reflecting plate 5, while the light directed to the other region by the lens 2a is substantially the reflected light of the reflecting plate 5. Condensate in the same direction.
1A is a top view, and FIG. 1B is a cross-sectional view taken along the line AA in FIG. FIG. 2 is an enlarged view of a main part showing the reflector type light emitter U. As shown in FIG.

  In this reflecting mirror type lighting fixture 10, as shown in an enlarged cross-sectional view of the main part in FIG. 2, the LED package 6 is attached to the mounting plate 3 so as to face the reflecting surface 5 a that is the inner surface of the reflecting mirror 5. . The reflecting mirror 5 is formed by dividing the reflecting surface, which is a rotating body, along the rotation axis, and prevents the light L from the LED package 6 serving as the light source from being directly emitted, and becomes parallel light. A surface that is guided upward is indicated by A1. The mounting plate faces the outer surface of the reflecting mirror and the mounting surface in a state of extending from the edge of the reflecting surface to the side away from the LED package. And this attachment plate 3 has attached the reflective surface 5a so that the division | segmentation surface 5V of the reflective mirror 5 may adjoin.

  Thus, according to the reflector type lighting fixture of Embodiment 1, the attachment plate 3 is in a state of extending from the edge of the umbrella-like reflection surface to the side farther from the LED package 6, and the reflection mirror 5. It arrange | positions so that the outer surface 5b and the attachment surface may oppose. Therefore, since the mounting plate 3 functions as a light shielding plate that shields direct light leaking from the reflecting mirror, it is possible to emit good parallel light while reducing the size of the reflecting mirror and to suppress glare well. Become.

In the first embodiment, the lens 2a is sandwiched between the lid 2 and the light collecting function is provided. However, the light collecting function is not required by allowing parallel light to be emitted by the reflecting mirror. There is also.
Further, the surface of the mounting plate is not required to be a translucent plate, and may be constituted by a reflecting plate or a light collecting plate.
In addition, in the reflecting mirror type lighting fixture 10, a plurality of reflecting mirror type light emitters are arranged and formed, but it goes without saying that only one may be used. In the case of one, the mounting plate may constitute a box-shaped housing and be disposed also on the outer surface side of the reflecting mirror.

(Embodiment 2)
In this reflecting mirror type lighting fixture 20, as shown in an enlarged cross-sectional view of a main part in FIG. 3, one reflecting mirror type light emitter of the reflecting mirror type lighting fixture is configured. In this reflecting mirror type lighting fixture 20, the reflecting mirror 15 has a larger curvature of the mirror surface of the reflecting mirror than the reflecting mirror of the reflecting mirror type lighting fixture of the first embodiment shown in FIG. Except for the protruding points, the LED package as a light source is formed by dividing the reflecting surface, which is a rotating body, along the rotation axis, similarly to the reflecting mirror of the reflector-type lighting fixture of the first embodiment. The surface from which light from 16 is prevented from being directly emitted and is formed into parallel light and guided upward as indicated by an arrow A2.
Since other parts are formed in the same manner as the reflector type lighting apparatus of the first embodiment, description thereof is omitted here.

  Further, the LED package 16 is attached to the attachment plate 13 so as to face the reflecting surface 15a which is the inner surface of the reflecting mirror 15. The mounting plate 13 is disposed so that the outer surface 15b of the reflecting mirror 15 and the mounting surface face each other.

  According to the reflector-type lighting fixture of the second embodiment, by adjusting the reflecting surface 15a of the reflector, the direct light leaking from the reflector is reduced and the glare is favorably suppressed while reducing the size of the reflector. It becomes possible to do. In addition, when FIG. 3 which shows the reflector-type lighting fixture 20 of Embodiment 2 and FIG. 2 which shows the reflector-type lighting fixture 10 of Embodiment 1 is large, although it is large, the condensing rate is improves.

(Embodiment 3)
In the reflector type lighting fixture 30 of Embodiment 3, as shown in FIG. 4 as a whole top view and FIG. 5 as a perspective view of the main part, the edge of the reflector as seen from the light exit surface of each reflector type light emitter Are arranged in a staggered manner. In other words, the reflector type lighting fixture 30 is an array of 16 reflector type light emitters arranged in a staggered manner in 4 rows and 4 columns. In this reflector illuminator 30, each reflector illuminator itself is formed in the same manner as one of the reflector illuminators of the reflector illuminator of Embodiment 1 shown in FIG. The difference is that the arrangement is staggered.

As is apparent from a comparison with FIG. 6 schematically showing the arrangement structure of the reflector-type light emitters of the reflector-type luminaire 10 of the first embodiment, the reflector-type luminaire 30 (see FIG. 4) The thickness is smaller than that of the reflector type lighting fixture of the first embodiment, and the casing 21 is extremely thin.
And like the reflector of the reflector type lighting fixture of Embodiment 1, the reflective surface which is a rotary body is divided | segmented along the rotating shaft, and it shows that an essential part enlarged perspective view is shown in FIG. In addition, the light L3 from the LED package 26 serving as a light source is prevented from being directly emitted, and a surface is formed that is guided in the upward direction as indicated by an arrow A3 as parallel light. The mounting plate 23 is arranged so that the outer surface of the reflecting mirror and the mounting surface face each other in a state of extending from the edge of the reflecting surface to the side away from the LED package. Thus, the reflection surface 25a is attached.

  According to such a configuration, the reflecting mirror type light emitters are arranged so that the edges of the reflecting mirrors are staggered when viewed from the light exit surface of the reflecting mirror, so that the arrangement density of the reflecting mirror type light emitters can be improved. The lighting fixture can be reduced in size.

(Embodiment 4)
In the reflector type lighting fixture of the fourth embodiment, as shown in a cross-sectional view of the main part in FIG. It is designed to face in the near direction. Here, the mounting plate 33 is made of a translucent material.
According to this configuration, since the optical axis of the LED package 36 is directed closer to the dividing surface of the reflecting mirror than in the direction orthogonal to the mounting plate 33, glare can be further reduced, and the reflecting mirror 35 is further improved. It can be downsized. Therefore, the housing itself can be made small, and the overall lighting apparatus can be downsized. Note that the light extraction efficiency can be further improved by configuring the mounting plate 33 with a light-transmitting material.

  The optical axis B0 of the LED package 36 may be formed to be rotatable with respect to the mounting plate 33. At this time, when the optical axis B0 of the LED package 36 is in a direction orthogonal to the mounting plate 33 as shown in FIG. Since the mounting plate 33 is made of a light-shielding member or a reflective member, direct light can be shielded by the mounting plate 33 of the adjacent reflector type light emitter.

(Embodiment 5)
In the reflector type lighting fixture of the fifth embodiment, the optical axis B1 of the LED package 46 is attached to the mounting plate 43 as in the case of the reflector type lighting fixture of the fourth embodiment, as shown in FIG. Although the point which was made to face the direction close | similar to the division surface of the reflective mirror 45 rather than the orthogonal direction is the same, the attachment plate has the recessed part 47 which accommodates an LED package, and the state accommodated in this recessed part 47 Thus, the optical axis B1 of the LED package 46 is configured to cross the mounting plate 43 obliquely.

According to this configuration, since the LED package 46 is accommodated in the recess 47, the light source cannot be seen. Therefore, since the optical axis is directed in the direction closer to the dividing surface of the reflecting mirror than in the direction perpendicular to the mounting plate 43, the glare can be further reduced and the reflecting mirror 45 can be further downsized. In this reflecting mirror type lighting fixture, the mounting plate 43 is formed so as to protrude from the reflecting mirror 45. In this example, since the light is directly reflected by the reflecting surface of the reflecting mirror 45, the mounting plate is In some cases, it may not be necessary to directly block light. For this reason, the reflecting mirror 45 may be arranged so as not to protrude from the attachment position of the LED package 46 to the attachment plate 43, and further miniaturization can be achieved.
As described above, in the reflector-type illuminator of Embodiment 5, the reflector-type illuminator has the recess 47 in which the mounting plate accommodates the LED package, and the optical axis B1 of the LED package 46 is accommodated in the accommodated state. The glare can be further reduced because the direction is closer to the dividing surface of the reflecting mirror than the direction orthogonal to the mounting plate.

(Embodiment 6)
In the reflector illuminator of Embodiment 6, as shown in FIGS. 10 (a) and 10 (b), a top view and a cross-sectional view of the main part, the reflector illuminator has an independent mounting plate 53. And can be rotated.
In the present embodiment, the angles Q1 and Q2 of the LED package 56 with respect to the reflecting mirror 55 are constant, but the mounting plate 53 is configured to be independently rotatable. About another structure, it is the same as that of the said Embodiment 1, and the same code | symbol was attached | subjected to the same site | part.
Thereby, the emission direction of light can be adjusted. In addition, it is possible to improve the performance by adjusting so as to face in different directions. Since the light emission direction can be individually changed by rotating the mounting plate, the light can be condensed at an arbitrary place.

1, 11, 21 Housing 3, 13, 23, 33, 43, 53 Mounting plate 3b Mounting surface 5, 15, 25, 35, 45, 55 Reflecting mirror 5a Reflecting surface 5b Outer surfaces 6, 16, 26, 36, 46 56 LED package

Claims (2)

A reflecting mirror having a reflecting surface;
A mounting plate for attaching the reflecting mirror;
An LED package attached to the attachment surface of the attachment plate so as to face the inner surface of the reflecting mirror;
A reflector-type illuminator that houses a plurality of reflector-type illuminants in a housing,
The mounting plate is a direct light emitted from the positioned adjacent reflector type emitters, block a portion of the direct light which is not reflected by the reflecting mirror disposed adjacent the reflector type light emitter has a blocking part which, extending out the reflector lighting fittings in the irradiation direction of the reflecting mirror lighting fittings than the blocking portion edge of the reflecting surface. It is the reflector type lighting fixture of Claim 1 , Comprising:
The plurality of reflector light emitters includes a plurality of rows made of the reflector light emitters,
In the same row among the plurality of rows, the plurality of reflector light emitters are arranged so that the irradiation directions of the light mainly emitted from the LED package are opposite to each other in the adjacent reflector light emitters. A reflector-type lighting fixture in which a plurality of the reflector-type light emitters are densely arranged within a range in which the reflector does not interfere .

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