JP2020155265A - Wall surface irradiating lamp and lighting fixture using the same - Google Patents

Wall surface irradiating lamp and lighting fixture using the same Download PDF

Info

Publication number
JP2020155265A
JP2020155265A JP2019051144A JP2019051144A JP2020155265A JP 2020155265 A JP2020155265 A JP 2020155265A JP 2019051144 A JP2019051144 A JP 2019051144A JP 2019051144 A JP2019051144 A JP 2019051144A JP 2020155265 A JP2020155265 A JP 2020155265A
Authority
JP
Japan
Prior art keywords
light
lens
light emitting
lamp
emitting surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2019051144A
Other languages
Japanese (ja)
Other versions
JP6919860B2 (en
Inventor
浅川　久志
Hisashi Asakawa
久志 浅川
哲也 郷田
Tetsuya Goda
哲也 郷田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marumo Electric Co Ltd
Phoenix Electric Co Ltd
Original Assignee
Marumo Electric Co Ltd
Phoenix Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Marumo Electric Co Ltd, Phoenix Electric Co Ltd filed Critical Marumo Electric Co Ltd
Priority to JP2019051144A priority Critical patent/JP6919860B2/en
Priority to CN202010081868.4A priority patent/CN111734971A/en
Priority to KR1020200014864A priority patent/KR20200111616A/en
Publication of JP2020155265A publication Critical patent/JP2020155265A/en
Application granted granted Critical
Publication of JP6919860B2 publication Critical patent/JP6919860B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/0006—Arrays
    • G02B3/0037—Arrays characterized by the distribution or form of lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/105—Outdoor lighting of arenas or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Abstract

To provide a lamp that can evenly irradiate a wall surface on a stage while reducing unevenness of luminosity of irradiation light, and to provide a lighting fixture using the same.SOLUTION: A lamp 11 includes: a light source body 12 for emitting predetermined light; and a lens 14 having a bottom surface 30 for receiving light from the light source body 12 and a light emitting surface 32 for emitting light received by the bottom surface 30. In a cross section of the lens 14, a length L2 of the light emitting surface 32 is set so as to be longer than a length L1 of the bottom surface 30.SELECTED DRAWING: Figure 7

Description

本発明は、舞台上の壁面を照らす照明器具に関する。 The present invention relates to a lighting fixture that illuminates a wall surface on a stage.

従前より、舞台上の壁面を照らすことを目的とした様々な照明器具が開発されている。例えば、拡散板を用いて蛍光ランプからの光を壁面に照射する照射器具（特許文献１）や、拡散板を用いてチップオンボード（以下、単に「ＣＯＢ」という。）型のＬＥＤからのカラー光（複数種類の色を含む光）を壁面に照射する照射器具、複数用意されたＬＥＤのそれぞれにＣＰＣ（Compound Parabolic Concentrator：複合放物面型集光器）などの光学系、あるいはリフレクタを使用して、各ＬＥＤからの光を壁面に照射する照明器具が開発されている。 Various lighting fixtures have been developed for the purpose of illuminating the walls on the stage. For example, a color from an irradiation device (Patent Document 1) that uses a diffuser to irradiate a wall surface with light from a fluorescent lamp, or a chip-on-board (hereinafter, simply referred to as "COB") type LED that uses a diffuser. An irradiation device that irradiates the wall surface with light (light containing multiple types of colors), an optical system such as a CPC (Compound Parabolic Concentrator) for each of the multiple LEDs prepared, or a reflector is used. Then, a lighting fixture that irradiates the wall surface with the light from each LED has been developed.

特開平４−２８２５０４号公報Japanese Unexamined Patent Publication No. 4-282504

しかしながら、ＣＰＣを用いると、照射した壁面に対して水平方向（あるいは鉛直方向）の照度むらや、照射光の色むらが生じてしまう。これは、単一色のＬＥＤを使用した場合であっても、多色のＬＥＤを使用した場合であっても同じである。 However, when CPC is used, illuminance unevenness in the horizontal direction (or vertical direction) and color unevenness of the irradiation light occur with respect to the irradiated wall surface. This is the same whether a single color LED is used or a multicolor LED is used.

また、多色のＬＥＤにリフレクタを組み合わせて用いる場合や、多色のＣＯＢに拡散板を組み合わせて用いる場合では、照明器具を床面に設置すると、当該照明器具から近い壁面の下部だけが明るくなってしまい、床面と天面とにそれぞれ照明器具を設置すると、各照明器具から近い壁面の下部および上部が明るくなり、いずれにしても壁面の高さ方向の中央部が暗くなってしまうという問題があった。 In addition, when a multicolor LED is used in combination with a reflector, or when a multicolor COB is used in combination with a diffuser, when the lighting fixture is installed on the floor, only the lower part of the wall surface near the lighting fixture becomes bright. If lighting fixtures are installed on the floor and top, the lower and upper parts of the wall surface near each lighting fixture will be bright, and in any case, the central part in the height direction of the wall surface will be dark. was there.

本発明は、前述した課題に鑑みてなされたものであり、その目的は、照射光の明るさのむらを低減して舞台上の壁面を均一に照らすことのできるランプ、およびそれを用いた照明器具を提供することにある。 The present invention has been made in view of the above-mentioned problems, and an object of the present invention is a lamp capable of reducing unevenness in the brightness of irradiation light to uniformly illuminate a wall surface on a stage, and a lighting fixture using the lamp. Is to provide.

本発明の一局面によれば、
所定の光を放射する光源体と、
前記光源体からの光を受ける底面および前記底面から受け入れた光を放射する出光面を有するレンズとを備えるランプであって、
前記レンズの断面において、前記底面の長さに比べて前記出光面の長さの方が長く設定されていることを特徴とする
ランプが提供される。 According to one aspect of the invention
A light source that emits predetermined light and
A lamp including a bottom surface that receives light from the light source body and a lens having a light emitting surface that emits light received from the bottom surface.
Provided is a lamp characterized in that the length of the light emitting surface is set longer than the length of the bottom surface in the cross section of the lens.

好適には、前記レンズの高さは、前記出光面の前記長さの２倍以上である。 Preferably, the height of the lens is at least twice the length of the light emitting surface.

好適には、前記レンズの前記底面と、前記光源体との間には、空間が設けられている。 Preferably, a space is provided between the bottom surface of the lens and the light source body.

好適には、前記レンズの前記出光面は、半円筒状の畝が複数本並べて配置された形状となっている。 Preferably, the light emitting surface of the lens has a shape in which a plurality of semi-cylindrical ridges are arranged side by side.

本発明の他の局面によれば、
上述したランプと、前記ランプから放射された光を反射させるリフレクタとを備える照明器具が提供される。 According to other aspects of the invention
A luminaire including the lamp described above and a reflector that reflects the light emitted from the lamp is provided.

本発明によれば、断面における底面の長さに比べて出光面の長さの方が長く設定された、当該断面が「くさび」状のレンズを使用することにより、当該断面視で、底面で受け入れる光源体からの光の入射角に対して、出光面から放射する光の出射角を狭くすることができる。これにより、照射光の明るさのむらを低減して舞台上の壁面を均一に照らすことのできるランプ、およびそれを用いた照明器具を提供できた。 According to the present invention, by using a lens having a "wedge" shape in the cross section in which the length of the light emitting surface is set longer than the length of the bottom surface in the cross section, the bottom surface is viewed in the cross section. The emission angle of the light emitted from the light emitting surface can be narrowed with respect to the incident angle of the light from the receiving light source body. As a result, it has become possible to provide a lamp capable of reducing unevenness in the brightness of the irradiation light and uniformly illuminating the wall surface on the stage, and a lighting fixture using the lamp.

本発明が適用された実施形態に係る照明器具１０の側面図である。It is a side view of the luminaire 10 which concerns on embodiment to which this invention was applied. 本発明が適用された実施形態に係る照明器具１０の正面図である。It is a front view of the luminaire 10 which concerns on embodiment to which this invention was applied. 本発明が適用された実施形態に係るランプ１１の斜視図である。It is a perspective view of the lamp 11 which concerns on embodiment to which this invention was applied. 本発明が適用された実施形態に係るランプ１１の正面図である。It is a front view of the lamp 11 which concerns on embodiment to which this invention was applied. 本発明が適用された実施形態に係るランプ１１の側面図である。It is a side view of the lamp 11 which concerns on embodiment to which this invention was applied. 本発明が適用された実施形態に係るランプ１１の平面図である。It is a top view of the lamp 11 which concerns on embodiment to which this invention was applied. 本発明が適用された実施形態に係るランプ１１の断面図である。It is sectional drawing of the lamp 11 which concerns on embodiment to which this invention was applied. 本発明が適用された実施形態に係るレンズ１４における出光面３２の拡大断面図である。It is an enlarged sectional view of the light emitting surface 32 in the lens 14 which concerns on embodiment to which this invention was applied. 本発明が適用された実施形態に係るランプ１１におけるレンズ１４の底面３０および光源体１２の拡大断面図である。FIG. 5 is an enlarged cross-sectional view of a bottom surface 30 of a lens 14 and a light source body 12 in a lamp 11 according to an embodiment to which the present invention is applied. 変形例１に係るランプ１１の側面図である。It is a side view of the lamp 11 which concerns on modification 1. FIG.

（照明器具１０の構成）
以下、図面を用いて、本発明が適用された照明器具１０の構成について説明する。図１および図２に示すように、照明器具１０は、大略、ランプ１１とリフレクタ１６とを備えている。 (Structure of lighting fixture 10)
Hereinafter, the configuration of the luminaire 10 to which the present invention is applied will be described with reference to the drawings. As shown in FIGS. 1 and 2, the luminaire 10 generally includes a lamp 11 and a reflector 16.

図３から図６に示すように、ランプ１１は、光源体１２とレンズ１４とを備えている。 As shown in FIGS. 3 to 6, the lamp 11 includes a light source body 12 and a lens 14.

光源体１２は、帯状に延びる基板２０と、この基板２０の長手方向に沿って、基板２０の表面に等間隔で配設された複数の（ＣＯＢ）ＬＥＤ２２とを備えている。 The light source body 12 includes a substrate 20 extending in a band shape, and a plurality of (COB) LEDs 22 arranged at equal intervals on the surface of the substrate 20 along the longitudinal direction of the substrate 20.

基板２０は、上述のように帯状に延びる平板状に形成されているが、もちろんこれに限定されるものではなく、他の形状であってもよい。また、基板２０におけるＬＥＤ２２が配設される表面には、各ＬＥＤ２２に給電するための必要な回路（図示せず）が形成されている。 The substrate 20 is formed in a flat plate shape extending in a strip shape as described above, but is not limited to this, and may have other shapes. Further, on the surface of the substrate 20 on which the LEDs 22 are arranged, a necessary circuit (not shown) for supplying power to each LED 22 is formed.

ＬＥＤ２２は、所定の色（波長）の光を放射する発光体であり、ＬＥＤ２２からの発光量や各ＬＥＤ２２同士の配置間隔については、照明器具１０の用途や目的に応じて適宜設定される。また、光源体１２を構成する複数のＬＥＤ２２は、すべて同じ色（波長）の光を放射するように設定してもよいし、互いに異なる色（波長）の光を放射するように設定してもよい。また、ＬＥＤ２２はＣＯＢに限定されるものではなく、例えばＳＭＤ（Ｓｕｒｆａｃｅ Ｍｏｕｎｔ Ｄｅｖｉｃｅ）タイプのＬＥＤを基板２０上に配置するなど、他の形態であってもよい。 The LED 22 is a light emitting body that emits light of a predetermined color (wavelength), and the amount of light emitted from the LED 22 and the arrangement interval between the LEDs 22 are appropriately set according to the use and purpose of the lighting fixture 10. Further, the plurality of LEDs 22 constituting the light source body 12 may be set to emit light of the same color (wavelength), or may be set to emit light of different colors (wavelengths) from each other. Good. Further, the LED 22 is not limited to the COB, and may have other forms such as arranging an SMD (Surface Mount Device) type LED on the substrate 20.

レンズ１４は、光源体１２の基板２０と同様に、当該基板２０の長手方向に沿って延びる棒状の部材であり、例えば二酸化ケイ素や樹脂、ガラス等の材料で形成されている。 Like the substrate 20 of the light source body 12, the lens 14 is a rod-shaped member extending along the longitudinal direction of the substrate 20, and is made of a material such as silicon dioxide, resin, or glass.

図４および図５を参照してレンズ１４の形状について詳述する。レンズ１４は、上述した光源体１２からの光を受ける底面３０と、当該底面３０から受け入れた光を外部へ放射する出光面３２と、一対の側面３４とを有している。また、レンズ１４における長手方向に直交する平面による断面Ｄでみると、図７に示すように、底面３０の長さＬ１に比べて出光面３２の長さＬ２の方が長く設定されている。つまり、レンズ１４の断面は「くさび」状に形成されている。 The shape of the lens 14 will be described in detail with reference to FIGS. 4 and 5. The lens 14 has a bottom surface 30 that receives the light from the light source body 12 described above, a light emitting surface 32 that radiates the light received from the bottom surface 30 to the outside, and a pair of side surfaces 34. Further, looking at the cross section D of the lens 14 in a plane orthogonal to the longitudinal direction, as shown in FIG. 7, the length L2 of the light emitting surface 32 is set longer than the length L1 of the bottom surface 30. That is, the cross section of the lens 14 is formed in a "wedge" shape.

底面３０の長さＬ１は、断面Ｄにおいて、底面３０の両端３６同士の距離をいう。同様に、出光面３２の長さＬ２は、断面Ｄにおいて、出光面３２の両端３８同士の距離をいう。底面３０の長さＬ１に対する出光面３２の長さＬ２の比が大きくなるにつれて、Ｌ１とＬ２と間の距離（すなわち、後述する「高さＨ」）が十分あれば（例えば、Ｌ２の２倍以上あれば）、出光面３２から放射される光の収束度（出光面３２に対して直交する方向に向けて放射される光の割合）は増す。 The length L1 of the bottom surface 30 refers to the distance between both ends 36 of the bottom surface 30 in the cross section D. Similarly, the length L2 of the light emitting surface 32 refers to the distance between both ends 38 of the light emitting surface 32 in the cross section D. As the ratio of the length L2 of the light emitting surface 32 to the length L1 of the bottom surface 30 increases, if the distance between L1 and L2 (that is, “height H” described later) is sufficient (for example, twice as large as L2). (If there is more than the above), the degree of convergence of the light emitted from the light emitting surface 32 (the ratio of the light emitted in the direction orthogonal to the light emitting surface 32) increases.

出光面３２は、レンズ１４の長手方向に沿う半円筒状の畝５０（レンチキュラーレンズ）を複数本並べて形成されている。これら畝５０の本数や、各畝５０を規定する円筒の径寸法等については特に制限はない。なお、各畝５０を規定する円筒の中心Ｃが、図８するように、断面Ｄにおいて出光面３２の両端３８同士を結ぶ仮想直線ＩＬよりも内側（底面３０側）に位置するように設定するのが好適である。 The light emitting surface 32 is formed by arranging a plurality of semi-cylindrical ridges 50 (lenticular lenses) along the longitudinal direction of the lens 14. There are no particular restrictions on the number of these ridges 50, the diameter of the cylinder that defines each ridge 50, and the like. As shown in FIG. 8, the center C of the cylinder defining each ridge 50 is set to be located inside (bottom 30 side) of the virtual straight line IL connecting both ends 38 of the light emitting surface 32 in the cross section D. Is preferable.

なお、図示するレンズ１４の出光面３２側の端部には鍔部３９が形成されているが、この鍔部３９はリフレクタ１６のベース４４（後述）にレンズ１４を固定する際に使用するものであり、本発明に必須の構成ではない。 A collar 39 is formed at the end of the illustrated lens 14 on the light emitting surface 32 side, and the collar 39 is used when the lens 14 is fixed to the base 44 (described later) of the reflector 16. Therefore, it is not an essential configuration for the present invention.

また、レンズ１４の正面視（図４参照）において、底面３０の両端３６同士を結ぶ直線ＳＬ１と、出光面３２の両端３８同士を結ぶ直線ＳＬ２との間の距離を高さＨという。そして、レンズ１４の高さＨは、出光面３２の長さＬ２の２倍以上に設定するのが好適である。この高さＨが出光面３２の長さＬ２の２倍よりも長くなるにつれて、底面３０からレンズ１４内に入った光が出光面３２から放射されるまでに側面３４で反射する回数が増加することにより、出光面３２から放射される光の収束度は増し、出光面３２から放射される光のムラは減少することとなる。 Further, in the front view of the lens 14 (see FIG. 4), the distance between the straight line SL1 connecting both ends 36 of the bottom surface 30 and the straight line SL2 connecting both ends 38 of the light emitting surface 32 is referred to as height H. The height H of the lens 14 is preferably set to be at least twice the length L2 of the light emitting surface 32. As this height H becomes longer than twice the length L2 of the light emitting surface 32, the number of times that the light entering the lens 14 from the bottom surface 30 is reflected by the side surface 34 before being radiated from the light emitting surface 32 increases. As a result, the degree of convergence of the light emitted from the light emitting surface 32 is increased, and the unevenness of the light emitted from the light emitting surface 32 is reduced.

本実施形態に係るレンズ１４の出光面３２は、図４に示すように光の放射方向に向けて凸の円弧状に形成されているが、出光面３２の両端３８同士を結ぶ直線状であってもよい。ただし、出光面３２から放射される光の収束度の点において、本実施形態のように出光面３２を円弧状に形成するのが好適である。 As shown in FIG. 4, the light emitting surface 32 of the lens 14 according to the present embodiment is formed in a convex arc shape in the light radiation direction, but is a straight line connecting both ends 38 of the light emitting surface 32. You may. However, in terms of the degree of convergence of the light emitted from the light emitting surface 32, it is preferable to form the light emitting surface 32 in an arc shape as in the present embodiment.

また、レンズ１４の長手方向に直交する面（以下、「端面３５」という。）は、底面３０から出光面３２に向けて外側に広がるように傾斜しているが、これに変えて、端面３５を長手方向に直交するように鉛直上下方向に延びる面にしてもよい。 Further, the surface orthogonal to the longitudinal direction of the lens 14 (hereinafter referred to as "end surface 35") is inclined so as to spread outward from the bottom surface 30 toward the light emitting surface 32, but instead of this, the end surface 35 May be a surface extending vertically and vertically so as to be orthogonal to the longitudinal direction.

さらに、レンズ１４の底面３０と、光源体１２（より具体的には各ＬＥＤ２２）とは互いに離間して配設し、底面３０と光源体１２との間に空間を設けるのが好適である。さらに言えば、図９に示すように、底面３０と光源体１２との間の距離Ｗは、ＬＥＤ２２の開き角（半値角）θの半分の角度ｉ、レンズ１４の屈折率Ｎ、および、角度ｉの光が底面３０と交わる点Ｐ１から、光源体１２を通る法線と底面３０との交点Ｐ２までの長さａとの関係で、以下の数式が成立するように設定するのが好適である。
ｉ＝ｔａｎ−１（ａ／Ｗ） …（式１）
（ｓｉｎｉ）／Ｎ＝ｓｉｎｉ’ …（式２）
そして、角度がｉ’の光がレンズ１４の側面３４で全反射するようにレンズ１４の断面形状を設定する。 Further, it is preferable that the bottom surface 30 of the lens 14 and the light source body 12 (more specifically, each LED 22) are arranged apart from each other, and a space is provided between the bottom surface 30 and the light source body 12. Furthermore, as shown in FIG. 9, the distance W between the bottom surface 30 and the light source body 12 is half the angle i of the opening angle (half-value angle) θ of the LED 22, the refractive index N of the lens 14, and the angle. It is preferable to set so that the following formula holds in relation to the length a from the point P1 where the light of i intersects the bottom surface 30 to the intersection P2 between the normal line passing through the light source body 12 and the bottom surface 30. is there.
i = tan -1 (a / W) ... (Equation 1)
(Sini) / N = sini'… (Equation 2)
Then, the cross-sectional shape of the lens 14 is set so that the light having an angle of i'is totally reflected by the side surface 34 of the lens 14.

また、本実施形態では、図１および図２に示すように、光源体１２とレンズ１４とを組み合わせたセットが複数（３セット）一組としてランプ１１が構成されているが、このセットの数は１つまたは２つ、あるいは４つ以上であってもよい。また、複数のセットは、長手方向で互いに平行に並べられているが、長手方向に直交する方向で互いに平行に並べてもよいし、互いに角度をつけて並べてもよい。 Further, in the present embodiment, as shown in FIGS. 1 and 2, the lamp 11 is configured as a set of a plurality (3 sets) in which the light source body 12 and the lens 14 are combined. May be one, two, or four or more. Further, although the plurality of sets are arranged parallel to each other in the longitudinal direction, they may be arranged parallel to each other in the direction orthogonal to the longitudinal direction, or may be arranged at an angle to each other.

リフレクタ１６は、ランプ１１から放射された光の一部を反射させて所望の方向に向ける役割を有しており、反射材４０と、側板４２と、ベース４４とを備えている。 The reflector 16 has a role of reflecting a part of the light radiated from the lamp 11 and directing it in a desired direction, and includes a reflector 40, a side plate 42, and a base 44.

反射材４０は、ランプ１１から放射された光の一部または全部を反射させるための板材であり、本実施形態では、板材を当該板材の長手方向に直交する方向で複数の箇所を折り曲げることによって全体として必要な曲面が構成されている。もちろん、板材を滑らかに曲げることによって必要な曲面を構成してもよい。本実施形態では、反射材４０で形成される反射面の焦点Ｆが３セットのうちの中央のランプ１１における中央部に位置するように、リフレクタ１６に対するランプ１１の位置が設定されている。 The reflective material 40 is a plate material for reflecting a part or all of the light radiated from the lamp 11, and in the present embodiment, the plate material is bent at a plurality of portions in a direction orthogonal to the longitudinal direction of the plate material. The required curved surface is configured as a whole. Of course, the required curved surface may be formed by smoothly bending the plate material. In the present embodiment, the position of the lamp 11 with respect to the reflector 16 is set so that the focal point F of the reflecting surface formed by the reflector 40 is located at the central portion of the central lamp 11 of the three sets.

側板４２は、反射材４０の両側端縁に取り付けられた一対の板材であり。本実施形態では、反射材４０の両側端縁に凹凸を形成し、両反射材４０に反射材４０の凸部を差し込むための切れ目が形成されている。そして、反射材４０の凸部を側板４２の切れ目に差し込むことにより、反射材４０と両側板４２とが組み合わされている。 The side plate 42 is a pair of plate members attached to both side edges of the reflective material 40. In the present embodiment, irregularities are formed on both side edges of the reflector 40, and cuts are formed in both reflectors 40 for inserting the convex portions of the reflector 40. Then, the reflective material 40 and the both side plates 42 are combined by inserting the convex portion of the reflective material 40 into the cut of the side plate 42.

ベース４４は、側板４２の図中下端部に配設された板材であり、当該ベース４４の図中上表面にランプ１１を構成する各光源体１２およびレンズ１４が配設されている。 The base 44 is a plate material arranged at the lower end of the drawing of the side plate 42, and each light source body 12 and a lens 14 constituting the lamp 11 are arranged on the upper surface of the base 44 in the drawing.

（照明器具１０の特徴）
本実施形態では、断面Ｄにおいて、底面３０の長さＬ１に比べて出光面３２の長さＬ２の方が長く設定された、当該断面が「くさび」状のレンズ１４を使用することにより、当該断面視で、底面３０で受け入れる光源体１２からの光の入射角に対して、出光面３２から放射する光の出射角を狭くすることができる。つまり、出光面３２から放射される光の収束度を増加することができる。これにより、照射光の明るさのむらを低減して舞台上の壁面を均一に照らすことのできるランプ１１、およびそれを用いた照明器具１０を提供できる。 (Characteristics of lighting equipment 10)
In the present embodiment, in the cross section D, the length L2 of the light emitting surface 32 is set to be longer than the length L1 of the bottom surface 30, and the cross section is set to be “wedge” by using the lens 14. In a cross-sectional view, the emission angle of the light emitted from the light emitting surface 32 can be narrowed with respect to the incident angle of the light received from the light source body 12 received by the bottom surface 30. That is, the degree of convergence of the light emitted from the light emitting surface 32 can be increased. As a result, it is possible to provide a lamp 11 capable of reducing unevenness in the brightness of the irradiation light and uniformly illuminating the wall surface on the stage, and a lighting fixture 10 using the lamp 11.

また、レンズ１４の高さＨを出光面３２の長さＬ２の２倍以上に設定することにより、出光面３２から放射される光の収束度を増加することができる。 Further, by setting the height H of the lens 14 to be twice or more the length L2 of the light emitting surface 32, the degree of convergence of the light emitted from the light emitting surface 32 can be increased.

さらに、レンズ１４の底面３０と光源体１２との間に空間を設けることにより、底面３０からレンズ１４内に入った光のうち、レンズ１４の側面３４で全反射して出光面３２から出る光の割合を増加することができる。 Further, by providing a space between the bottom surface 30 of the lens 14 and the light source body 12, among the light entering the lens 14 from the bottom surface 30, the light totally reflected by the side surface 34 of the lens 14 and emitted from the light emitting surface 32. The proportion of can be increased.

（変形例１）
上述した実施形態におけるレンズ１４の出光面３２は畝５０を複数本並べて形成されているが、これに変えて、図１０に示すように、出光面３２を滑らかな面（断面Ｄでは単なる直線状）に形成してもよい。 (Modification example 1)
The light emitting surface 32 of the lens 14 in the above-described embodiment is formed by arranging a plurality of ridges 50, but instead of this, as shown in FIG. 10, the light emitting surface 32 is a smooth surface (simple linear shape in the cross section D). ) May be formed.

（変形例２）
上述した実施形態におけるレンズ１４は棒状に形成されており、複数のＬＥＤ２２からの光をひとつのレンズ１４で受けるようになっているが、これに変えて、光源体１２を構成するひとつひとつのＬＥＤ２２に、対応するレンズ１４をそれぞれ設けてもよい。もちろん、いくつかのＬＥＤ２２を一単位として、各単位に対応するレンズ１４をそれぞれ設けてもよい。 (Modification 2)
The lens 14 in the above-described embodiment is formed in a rod shape, and the light from the plurality of LEDs 22 is received by one lens 14, but instead of this, each LED 22 constituting the light source body 12 is used. , Corresponding lenses 14 may be provided respectively. Of course, some LEDs 22 may be used as one unit, and lenses 14 corresponding to each unit may be provided.

（変形例３）
上述した実施形態では、光源体１２の光源としてＬＥＤ２２を用いているが、光源の種類としてはこれに限定されるものではなく、白熱球や有機ＥＬなど他の種類の光源を用いることができる。 (Modification 3)
In the above-described embodiment, the LED 22 is used as the light source of the light source body 12, but the type of the light source is not limited to this, and other types of light sources such as an incandescent sphere and an organic EL can be used.

今回開示された実施形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は、上記した説明ではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims, not the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

１０…照明器具、１１…ランプ、１２…光源体、１４…レンズ、１６…リフレクタ
２０…基板、２２…ＬＥＤ
３０…底面、３２…出光面、３４…側面、３５…端面、３６…（底面３０の）端、３８…（出光面３２の）端、３９…鍔部
４０…反射材、４２…側板、４４…ベース
５０…畝（レンチキュラーレンズ）
Ｌ１…（底面３０の）長さ、Ｌ２…（出光面３２の）長さ、Ｈ…（レンズ１４の）高さ
ＳＬ１…（底面３０の両端３６同士を結ぶ）直線、ＳＬ２…（出光面３２の両端３８同士を結ぶ）直線
Ｄ…（レンズ１４の）断面、Ｃ…（畝５０を規定する円筒の）中心、ＩＬ…（出光面３２の両端３８同士を結ぶ）仮想直線 10 ... Lighting equipment, 11 ... Lamp, 12 ... Light source body, 14 ... Lens, 16 ... Reflector 20 ... Board, 22 ... LED
30 ... bottom surface, 32 ... light emitting surface, 34 ... side surface, 35 ... end face, 36 ... end (of bottom surface 30), 38 ... end (of light emitting surface 32), 39 ... collar 40 ... reflective material, 42 ... side plate, 44 … Base 50… Ridge (lenticular lens)
L1 ... (bottom surface 30) length, L2 ... (light emitting surface 32) length, H ... (lens 14) height SL1 ... (connecting both ends 36 of the bottom surface 30) straight line, SL2 ... (light emitting surface 32) Straight line D ... (connecting both ends 38 of the lens 14), C ... center (of the cylinder defining the ridge 50), IL ... (connecting both ends 38 of the light emitting surface 32) Virtual straight line

本発明の一局面によれば、
帯状に延びる基板と、前記基板の長手方向に沿って配置された複数のＬＥＤとで構成されており、所定の光を放射する光源体と、
前記光源体の前記長手方向に沿って延び、前記長手方向に直交する断面形状が「くさび」状であり、前記光源体からの光を受ける底面および前記底面から受け入れた光を放射する出光面を有するレンズとを備えるランプであって、
前記レンズの前記断面形状において、前記底面の長さに比べて前記出光面の長さの方が長く設定されており、かつ、
前記長手方向に延びる断面で見たとき、前記出光面は、前記光の放射方向に向けて凸の円弧状に形成されていることを特徴とする
ランプが提供される。
According to one aspect of the invention
A light source body that is composed of a substrate extending in a band shape and a plurality of LEDs arranged along the longitudinal direction of the substrate and emits a predetermined light.
A bottom surface that extends along the longitudinal direction of the light source body and has a "wedge" shape in cross section orthogonal to the longitudinal direction, and a bottom surface that receives light from the light source body and a light emitting surface that emits light received from the bottom surface. A lamp equipped with a lens to have
In the cross-sectional shape of the lens, and the set length towards a long light emitting surface than the length of the bottom surface, and,
Provided is a lamp characterized in that the light emitting surface is formed in an arc shape that is convex toward the radiation direction of the light when viewed in a cross section extending in the longitudinal direction .

好適には、前記レンズの前記底面と、前記光源体との間には、空間が設けられており、
前記底面と前記光源体との間の距離Ｗは、前記光源体の開き角θの半分の角度ｉ、前記レンズの屈折率Ｎ、および、前記角度ｉの前記光が前記底面と交わる点から、前記光源体を通る法線と前記底面との交点までの長さａとの関係で、以下の数式が成立するように設定されており、
ｉ＝ｔａｎ −１ （ａ／Ｗ） …（式１）
（ｓｉｎｉ）／Ｎ＝ｓｉｎｉ’ …（式２）
さらに、角度ｉ’の前記光が前記レンズの側面で全反射するように前記レンズの断面形状が設定されている。
Preferably, a space is provided between the bottom surface of the lens and the light source body .
The distance W between the bottom surface and the light source body is determined by the angle i which is half the opening angle θ of the light source body, the refractive index N of the lens, and the point where the light at the angle i intersects the bottom surface. The following formula is set to hold in relation to the length a to the intersection of the normal line passing through the light source body and the bottom surface.
i = tan -1 (a / W) ... (Equation 1)
(Sini) / N = sini'… (Equation 2)
Further, the cross-sectional shape of the lens is set so that the light at an angle i'is totally reflected by the side surface of the lens .

Claims (5)

所定の光を放射する光源体と、
前記光源体からの光を受ける底面および前記底面から受け入れた光を放射する出光面を有するレンズとを備える照射器具であって、
前記レンズの断面において、前記底面の長さに比べて前記出光面の長さの方が長く設定されていることを特徴とする
ランプ。 A light source that emits predetermined light and
An irradiation instrument including a bottom surface that receives light from the light source body and a lens having a light emitting surface that emits light received from the bottom surface.
A lamp characterized in that the length of the light emitting surface is set longer than the length of the bottom surface in the cross section of the lens. 前記レンズの高さは、前記出光面の前記長さの２倍以上である
請求項１に記載のランプ。 The lamp according to claim 1, wherein the height of the lens is at least twice the length of the light emitting surface. 前記レンズの前記底面と、前記光源体との間には、空間が設けられている
請求項１または２に記載のランプ。 The lamp according to claim 1 or 2, wherein a space is provided between the bottom surface of the lens and the light source body. 前記レンズの前記出光面は、半円筒状の畝が複数本並べて配置された形状となっている
請求項１から３のいずれか１項に記載のランプ。 The lamp according to any one of claims 1 to 3, wherein the light emitting surface of the lens has a shape in which a plurality of semi-cylindrical ridges are arranged side by side. 請求項１から４のいずれか１項に記載のランプと、前記ランプから放射された光を反射させるリフレクタとを備える照明器具。 A lighting fixture comprising the lamp according to any one of claims 1 to 4 and a reflector that reflects light radiated from the lamp.
JP2019051144A 2019-03-19 2019-03-19 Lamps for wall irradiation and lighting equipment using them Active JP6919860B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2019051144A JP6919860B2 (en) 2019-03-19 2019-03-19 Lamps for wall irradiation and lighting equipment using them
CN202010081868.4A CN111734971A (en) 2019-03-19 2020-02-06 Wall surface illuminating lamp and lighting fixture using the same
KR1020200014864A KR20200111616A (en) 2019-03-19 2020-02-07 Lamp for lighting a wall face and lighting device using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019051144A JP6919860B2 (en) 2019-03-19 2019-03-19 Lamps for wall irradiation and lighting equipment using them

Publications (2)

Publication Number Publication Date
JP2020155265A true JP2020155265A (en) 2020-09-24
JP6919860B2 JP6919860B2 (en) 2021-08-18

Family

ID=72559565

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019051144A Active JP6919860B2 (en) 2019-03-19 2019-03-19 Lamps for wall irradiation and lighting equipment using them

Country Status (3)

Country Link
JP (1) JP6919860B2 (en)
KR (1) KR20200111616A (en)
CN (1) CN111734971A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022264764A1 (en) * 2021-06-18 2022-12-22 三菱重工サーマルシステムズ株式会社 Light guide plate and light emitting device using same
JP7340041B2 (en) 2019-06-05 2023-09-06 華域視覚科技（上海）有限公司 Vehicle lamp optical element and vehicle headlamp

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04282504A (en) * 1991-03-11 1992-10-07 Tokyo Electric Co Ltd Illuminator for irradiation of wall face
JP2006066399A (en) * 2004-08-27 2006-03-09 Osram Opto Semiconductors Gmbh Illuminating means and primary optical element
JP2006128041A (en) * 2004-11-01 2006-05-18 Sony Corp Light emitting device and liquid crystal display
JP2008507850A (en) * 2004-07-26 2008-03-13 オスラム　オプト　セミコンダクターズ　ゲゼルシャフト　ミット　ベシュレンクテル　ハフツング Optoelectronic device and light emitting module for emitting electromagnetic radiation
JP2008524045A (en) * 2004-12-17 2008-07-10 オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング Automotive headlight elements
JP2009512151A (en) * 2005-10-14 2009-03-19 パテント−トロイハント−ゲゼルシヤフト フユール エレクトリツシエ グリユーラムペン ミツト ベシユレンクテル ハフツング Multifunctional automotive floodlight module, especially for the automotive front area
JP2011044410A (en) * 2009-08-24 2011-03-03 Phoenix Electric Co Ltd Light emitting device
JP2011054333A (en) * 2009-08-31 2011-03-17 Asahi Kasei Corp Lighting device and lighting system
JP2011103190A (en) * 2009-11-10 2011-05-26 Mitsubishi Electric Corp Light source device and lighting system
JP2012094317A (en) * 2010-10-26 2012-05-17 Panasonic Corp Lighting fixture
JP3176743U (en) * 2012-04-10 2012-07-05 株式会社クラレ High-mount stop lamp for vehicles
JP2013164916A (en) * 2012-02-09 2013-08-22 Nippon Hoso Kyokai <Nhk> Lighting device
WO2014038182A1 (en) * 2012-09-04 2014-03-13 日本電気株式会社 Light-emitting device
JP2014067023A (en) * 2012-09-05 2014-04-17 Top Reach International Enterprises Ltd Secondary optical lens
JP2015095337A (en) * 2013-11-11 2015-05-18 東芝ライテック株式会社 Lighting device
JP2017174653A (en) * 2016-03-24 2017-09-28 株式会社小糸製作所 Vehicular lighting fixture, vehicular lighting fixture control system and vehicle including these
JP2017529652A (en) * 2014-08-14 2017-10-05 フィリップス ライティング ホールディング ビー ヴィ Skirting board lighting device for ambient lighting

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103851363B (en) * 2012-11-30 2017-05-03 海洋王（东莞）照明科技有限公司 LED lamp and lens thereof
CN108800061B (en) * 2017-07-03 2020-07-10 刘世芬 Grading lens of line lamp

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04282504A (en) * 1991-03-11 1992-10-07 Tokyo Electric Co Ltd Illuminator for irradiation of wall face
JP2008507850A (en) * 2004-07-26 2008-03-13 オスラム　オプト　セミコンダクターズ　ゲゼルシャフト　ミット　ベシュレンクテル　ハフツング Optoelectronic device and light emitting module for emitting electromagnetic radiation
JP2006066399A (en) * 2004-08-27 2006-03-09 Osram Opto Semiconductors Gmbh Illuminating means and primary optical element
JP2006128041A (en) * 2004-11-01 2006-05-18 Sony Corp Light emitting device and liquid crystal display
JP2008524045A (en) * 2004-12-17 2008-07-10 オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツング Automotive headlight elements
JP2009512151A (en) * 2005-10-14 2009-03-19 パテント−トロイハント−ゲゼルシヤフト フユール エレクトリツシエ グリユーラムペン ミツト ベシユレンクテル ハフツング Multifunctional automotive floodlight module, especially for the automotive front area
JP2011044410A (en) * 2009-08-24 2011-03-03 Phoenix Electric Co Ltd Light emitting device
JP2011054333A (en) * 2009-08-31 2011-03-17 Asahi Kasei Corp Lighting device and lighting system
JP2011103190A (en) * 2009-11-10 2011-05-26 Mitsubishi Electric Corp Light source device and lighting system
JP2012094317A (en) * 2010-10-26 2012-05-17 Panasonic Corp Lighting fixture
JP2013164916A (en) * 2012-02-09 2013-08-22 Nippon Hoso Kyokai <Nhk> Lighting device
JP3176743U (en) * 2012-04-10 2012-07-05 株式会社クラレ High-mount stop lamp for vehicles
WO2014038182A1 (en) * 2012-09-04 2014-03-13 日本電気株式会社 Light-emitting device
JP2014067023A (en) * 2012-09-05 2014-04-17 Top Reach International Enterprises Ltd Secondary optical lens
JP2015095337A (en) * 2013-11-11 2015-05-18 東芝ライテック株式会社 Lighting device
JP2017529652A (en) * 2014-08-14 2017-10-05 フィリップス ライティング ホールディング ビー ヴィ Skirting board lighting device for ambient lighting
JP2017174653A (en) * 2016-03-24 2017-09-28 株式会社小糸製作所 Vehicular lighting fixture, vehicular lighting fixture control system and vehicle including these

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7340041B2 (en) 2019-06-05 2023-09-06 華域視覚科技（上海）有限公司 Vehicle lamp optical element and vehicle headlamp
WO2022264764A1 (en) * 2021-06-18 2022-12-22 三菱重工サーマルシステムズ株式会社 Light guide plate and light emitting device using same
JP2023000628A (en) * 2021-06-18 2023-01-04 三菱重工サーマルシステムズ株式会社 Light guide plate and light-emitting device using the same
JP7391916B2 (en) 2021-06-18 2023-12-05 三菱重工サーマルシステムズ株式会社 Light guide plate and light emitting device using the same

Also Published As

Publication number Publication date
CN111734971A (en) 2020-10-02
JP6919860B2 (en) 2021-08-18
KR20200111616A (en) 2020-09-29

Similar Documents

Publication Publication Date Title
JP4030431B2 (en) lighting equipment
JP2017228490A (en) Vehicular lighting fixture
KR100966619B1 (en) LED illuminating device
EP2005798A1 (en) Lamp system comprising a primary light source and a secondary light source
JP6919860B2 (en) Lamps for wall irradiation and lighting equipment using them
JP5814271B2 (en) Lighting equipment and louvers
KR20080049347A (en) Lighting utilizing a white light-emitting diode
JP2011233308A (en) Lighting system
JP5512447B2 (en) lighting equipment
JP2008305785A (en) Luminaire
JP2013251080A (en) Lighting device
KR102020984B1 (en) Led lighting apparatus with indirect lighting type
JP2015002157A (en) Horizon light
JP2019514181A (en) LIGHTING DEVICE, AND LIGHTING EQUIPMENT HAVING THE LIGHTING DEVICE
JP2014056694A (en) Lighting apparatus
JP5853128B2 (en) lighting equipment
KR101191406B1 (en) Led lamp device with distribution pattern of luminous intensity of incandescent lamp
KR20110115060A (en) Led lamp having wide angle lighting
JP2016091855A (en) Luminaire
TWI409412B (en) Led illuminating device
JP2015115201A (en) Lighting fixture
US20190211975A1 (en) Bulbs with indirect illumination
JP5558619B1 (en) Lighting device
JP2008166184A (en) Illumination device
CN215489205U (en) Light emitting device and lamp

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20200106

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20200106

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200124

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20200217

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200414

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20200608

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20200825

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20201016

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20210105

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210325

C60 Trial request (containing other claim documents, opposition documents)

Free format text: JAPANESE INTERMEDIATE CODE: C60

Effective date: 20210325

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20210428

C21 Notice of transfer of a case for reconsideration by examiners before appeal proceedings

Free format text: JAPANESE INTERMEDIATE CODE: C21

Effective date: 20210506

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20210622

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20210625

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20210706

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20210713

R150 Certificate of patent or registration of utility model

Ref document number: 6919860

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150