TWI700461B - Optical unit and led lighting fixture using the same - Google Patents

Optical unit and led lighting fixture using the same Download PDF

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Publication number
TWI700461B
TWI700461B TW108134762A TW108134762A TWI700461B TW I700461 B TWI700461 B TW I700461B TW 108134762 A TW108134762 A TW 108134762A TW 108134762 A TW108134762 A TW 108134762A TW I700461 B TWI700461 B TW I700461B
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Taiwan
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optical member
light source
led light
transparent
optical unit
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TW108134762A
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Chinese (zh)
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TW202014639A (en
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櫻木邦善
島崎宗久
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日商3Ｓ股份有限公司
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • 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
    • F21V7/10—Construction
    • 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]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

The present invention provides an optical unit that can illuminate an efficient effective beam. The optical unit (2) comprises: a transparent optical member (26) and a reflective optical member (22), wherein the transparent optical member (26) has: a casing (22g) formed in a semi-elliptical shape with respect to an optical axis of the LED light source disposed on the substrate; a concave portion (26k, 26j) disposed inwardly from the casing and accommodating the LED light source; and an emitting surface (22c) opposite to the concave portion to emit light from the LED light source. The reflective optical member (22) has a tapered surface (22t) disposed on the side of the emitting surface, and its diameter is enlarged as approaching the side of the emitting surface.

Description

光學單元及使用此光學單元之LED照明燈具 Optical unit and LED lighting fixture using the optical unit

本發明係有關於一種LED照明燈具及使用此之光學構件，尤其有關用於照亮廣大的足球場或棒球場等之光學單元及使用此光學單元之LED照明燈具。 The present invention relates to an LED lighting fixture and an optical component using the same, in particular to an optical unit used to illuminate a vast football field or baseball field, and an LED lighting fixture using the optical unit.

例如，可高亮度照明的LED照明燈具，可利用於具有照明設備的地面或比賽場所等。作為以LED作為光源的LED照明燈具，如日本專利文獻1中揭示的發明，具備有複數個光學單元，此等光學單元以矩陣形式配置在矩形平板狀之基底的一面上。為了以預定角度控制從LED射出的配光，在LED照明燈具中並排配置使用複數個用於控制LED的配光的反射板(光學構件)。 For example, LED lighting fixtures that can illuminate with high brightness can be used on the ground or competition venues with lighting equipment. As an LED lighting fixture using LEDs as a light source, as disclosed in Japanese Patent Document 1, a plurality of optical units are provided, and these optical units are arranged in a matrix on one surface of a rectangular flat substrate. In order to control the light distribution emitted from the LEDs at a predetermined angle, a plurality of reflecting plates (optical members) for controlling the light distribution of the LEDs are arranged side by side in the LED lighting fixture.

〔先行技術文獻〕 〔Advanced Technical Literature〕 〔專利文獻〕 〔Patent Literature〕

〔專利文獻1〕日本專利特開2009-129859號公報 [Patent Document 1] Japanese Patent Laid-Open No. 2009-129859

然而，LED照明燈具難以調整複數個反射板(光學構件)將照明範圍控制到預定角度。此外，雖遮掩到一部分照射範圍之光，以使照射範圍 內的光固定在預定的角度內，但卻存在著無法有效使用照射光的問題。 However, it is difficult for the LED lighting fixture to adjust a plurality of reflectors (optical members) to control the lighting range to a predetermined angle. In addition, although part of the light in the irradiated area is covered, the irradiated area The light inside is fixed within a predetermined angle, but there is a problem that the irradiated light cannot be used effectively.

所以，本發明為了解決上述之問題，將提供一種可以照射有效的有效光束之透明光學構件，光學單元。此外，其目的係提供一使用該光學構件之LED照明燈具。 Therefore, in order to solve the above-mentioned problems, the present invention provides a transparent optical member and optical unit that can irradiate an effective effective light beam. In addition, its purpose is to provide an LED lighting fixture using the optical component.

本實施例係由用於LED照明燈具之透明材料所構成之透明光學構件。該透明光學構件具備：一外殼，相對於配置在基板上的LED光源的光軸形成為半橢圓形；一凹部，從外殼凹設，並容置LED光源；及一射出面，與凹部相對，射出來自LED光源的光。且，外殼較佳具有以光軸為基準以放射狀延伸之複數個溝槽。 This embodiment is a transparent optical member made of transparent materials used in LED lighting fixtures. The transparent optical member includes: a housing formed in a semi-elliptical shape with respect to the optical axis of the LED light source arranged on the substrate; a concave portion recessed from the housing and containing the LED light source; and an emission surface opposite to the concave portion, Emit light from the LED light source. In addition, the housing preferably has a plurality of grooves extending radially based on the optical axis.

且，溝槽可以係沿直線延伸的凹槽或彎曲的凹槽。此外，凹部，也可包含一入射前面，與LED光源對向；及一入射圓錐面，相對於基板設置為傾斜。且，透明光學構件由改變外殼、入射前面、以及入射圓錐面的形狀，進而變更從由射出面射出的LED光源照射光的角度。 Moreover, the groove may be a groove extending along a straight line or a curved groove. In addition, the concave portion may also include an incident front surface, which faces the LED light source, and an incident cone surface, which is inclined with respect to the substrate. In addition, the transparent optical member changes the shape of the housing, the entrance front surface, and the entrance cone surface, and further changes the angle of light irradiated from the LED light source emitted from the exit surface.

本實施例的光學單元，具備：上述之透明光學構件；及一反射光學構件，具有一圓形開口，且該圓形開口包含一錐形面，該錐形面設置在透明光學構件的射出面側上並且具有隨著遠離射出面而擴大的直徑。 The optical unit of this embodiment includes: the above-mentioned transparent optical member; and a reflective optical member having a circular opening, and the circular opening includes a tapered surface provided on the exit surface of the transparent optical member It is on the side and has a diameter that increases with distance from the exit surface.

光學單元之透明光學構件，係由配置成矩陣狀的複數個外殼組成，且射出面彼此連接。且，透明光學構件包含形成於射出面上的第一結合部。反射光學構件係由配置成矩陣狀的複數個圓形開口組成，且透過框體彼此連接。反射光學構件包含形成於框體上且與第一結合部嵌合的第二結合部。 The transparent optical component of the optical unit is composed of a plurality of housings arranged in a matrix, and the emitting surfaces are connected to each other. In addition, the transparent optical member includes a first coupling portion formed on the emission surface. The reflective optical member is composed of a plurality of circular openings arranged in a matrix and connected to each other through the frame. The reflective optical member includes a second coupling part formed on the frame and fitted with the first coupling part.

另一個實施例的光學單元，具備：一透明光學構件；及一反射光學構件，其中該透明光學構件，具有：一外殼，相對於配置在基板上的LED 光源的光軸形成為半橢圓形；一凹部，容置LED光源並從外殼凹設；及一射出面，與凹部相對，射出來自LED光源的光，該反射光學構件，具有一圓形開口，且該圓形開口包含一錐形面，該錐形面設置在射出面側上並且具有隨著遠離射出面側而擴大的直徑。 The optical unit of another embodiment includes: a transparent optical member; and a reflective optical member, wherein the transparent optical member has: a housing opposite to the LED arranged on the substrate The optical axis of the light source is formed in a semi-elliptical shape; a concave portion for accommodating the LED light source and recessed from the housing; and an emission surface opposite to the concave portion for emitting light from the LED light source, the reflective optical member having a circular opening, And the circular opening includes a tapered surface that is arranged on the side of the ejection surface and has a diameter that expands away from the side of the ejection surface.

另一個實施例的LED照明燈具，具備：上述之光學單元；及一LED基板，具有以矩陣狀配置的LED光源，以便容置在凹部中。 An LED lighting fixture of another embodiment includes: the above-mentioned optical unit; and an LED substrate with LED light sources arranged in a matrix so as to be accommodated in the recess.

本發明的透明光學構件或光學單元可以照射有效的有效光束。此外，此同樣適用於使用該光學構件的LED照明燈具。 The transparent optical member or optical unit of the present invention can irradiate an effective effective light beam. In addition, the same applies to the LED lighting fixture using the optical component.

1:LED照明燈具 1: LED lighting

2:光學單元 2: Optical unit

6:電路基板 6: Circuit board

8:LED光源 8: LED light source

12:燈具本體 12: Lamp body

13:防護罩 13: Protective cover

22、23:反射光學構件 22, 23: reflective optical components

26、27:透明光學構件 26, 27: Transparent optical components

圖1為表示LED照明燈具之前面側的透視圖。 Fig. 1 is a perspective view showing the front side of the LED lighting fixture.

圖2為表示LED照明燈具之部分剖面圖。 Figure 2 is a partial cross-sectional view showing the LED lighting fixture.

圖3(a)為光學單元之前視圖，(b)為沿(a)之B-B線剖面圖，(c)為沿(a)之C-C線剖面圖。(d)為反射光學構件22和透明光學構件26為分離狀態的透視圖。 Figure 3 (a) is a front view of the optical unit, (b) is a cross-sectional view along the line B-B of (a), and (c) is a cross-sectional view along the line C-C of (a). (d) is a perspective view of the reflective optical member 22 and the transparent optical member 26 in a separated state.

圖4(a)為第2實施例之反射光學構件23之前視圖，(b)為沿(a)之B-B線剖面圖，(c)為沿(a)之C-C線剖面圖。(d)為反射光學構件23之透視圖。 Fig. 4 (a) is a front view of the reflective optical member 23 of the second embodiment, (b) is a cross-sectional view along the line B-B of (a), and (c) is a cross-sectional view along the line C-C of (a). (d) is a perspective view of the reflective optical member 23.

圖5(a)為第2實施例之透明光學構件27之前視圖，(b)為沿(a)之B-B線剖面圖，(c)為透明光學構件27之背面圖。 5(a) is a front view of the transparent optical member 27 of the second embodiment, (b) is a cross-sectional view along the line B-B of (a), and (c) is a back view of the transparent optical member 27.

圖6為說明有效光束圖。 Fig. 6 is a diagram illustrating the effective beam.

圖7(a)為透明光學構件27之外殼27g的放大圖，(b)為沿(a)之B-B線剖面圖。(c)為 表示不同於透明光學構件27之外殼27g的放大圖中的溝槽之形狀。 Fig. 7 (a) is an enlarged view of the housing 27g of the transparent optical member 27, and (b) is a sectional view taken along the line B-B of (a). (c) is It shows the shape of the groove different from the enlarged view of the housing 27g of the transparent optical member 27.

圖8(a)為照射角度為15度的LED照明燈具1的照射結果，(b)為LED照明燈具1的照射角度與相對照射強度的關係的曲線圖。(c)為用在光學單元2並且照射角度為15度的透明光學構件27的剖面圖。 Fig. 8 (a) is the irradiation result of the LED lighting lamp 1 with an irradiation angle of 15 degrees, and (b) is a graph showing the relationship between the irradiation angle of the LED lighting lamp 1 and the relative irradiation intensity. (c) is a cross-sectional view of the transparent optical member 27 used in the optical unit 2 and having an irradiation angle of 15 degrees.

圖9(a)為照射角度為45度的LED照明燈具1的照射結果，(b)為LED照明燈具1的照射角度與相對照射強度的關係的曲線圖。(c)為用在光學單元2並且照射角度為45度的透明光學構件27的剖面圖。 Fig. 9 (a) is the irradiation result of the LED lighting lamp 1 with an irradiation angle of 45 degrees, and (b) is a graph showing the relationship between the irradiation angle of the LED lighting lamp 1 and the relative irradiation intensity. (c) is a cross-sectional view of the transparent optical member 27 used in the optical unit 2 and having an irradiation angle of 45 degrees.

〔實施發明用的型態〕 〔Types for implementing invention〕

對本發明的實施例的LED照明燈具進行說明。於以下的實施例中，本照明燈具係說明用在如運動場、足球場或棒球場之類大型比賽設施的高輸出型之照明燈具。又，用於說明的每個圖，示意性顯示為可以理解此等發明的程度，且尺寸大小、角度或厚度等皆以誇大形式表示。此外，在用於說明的每個圖中，其中相同的組件係以相同的號碼表示，有些情況下可省略其說明。此外，以下的實施例所述的形狀、尺寸、材料等僅為本發明範圍內的較佳實施例。 The LED lighting fixture of the embodiment of the present invention will be described. In the following embodiments, this lighting fixture describes a high-output lighting fixture used in large-scale competition facilities such as sports fields, football fields, or baseball fields. In addition, each figure used for explanation is schematically shown to the extent that these inventions can be understood, and the size, angle, thickness, etc. are all expressed in an exaggerated form. In addition, in each figure used for description, the same components are denoted by the same numbers, and the description may be omitted in some cases. In addition, the shapes, sizes, materials, etc. described in the following embodiments are only preferred embodiments within the scope of the present invention.

〈LED照明燈具之概要〉 <Overview of LED lighting fixtures>

如圖1所式，LED照明燈具1，具備：一燈具本體12，內建有配置複數個LED光源的基板；複數個光學單元2(從2-11~2-88)，配置在基板的射出側；及一防護罩13，配置在此等光學單元2的射出側並保護照明本體12。防護罩13係利用發出從LED光源射出的光，並且讓該發射面成為照明燈具1的發光面。 As shown in Figure 1, the LED lighting lamp 1 has: a lamp body 12 with a built-in substrate equipped with a plurality of LED light sources; a plurality of optical units 2 (from 2-11~2-88), arranged on the emission of the substrate Side; and a protective cover 13, which is arranged on the emission side of these optical units 2 and protects the lighting body 12. The protective cover 13 emits light emitted from the LED light source, and the emitting surface becomes the light emitting surface of the lighting fixture 1.

從圖1的左上角到右上角，光學單元2-11至2-18配置在LED照明 燈具1中。在該一段下側(-Y軸側)，光學單元2-21~2-28配置在LED照明燈具1中。在最下側，光學單元2-81至2-88配置在LED照明燈具1中。此等光學單元2可以具有相同的規格或不同的規格，如下所述。此外，當從前面側(+Z軸側)觀察時，LED照明燈具1為正方形，但也可以為長方形或圓形。複數個光學單元2係依據LED照明燈具1的燈具主體12的形狀適當地配置。 From the upper left corner to the upper right corner of Figure 1, the optical units 2-11 to 2-18 are arranged in the LED lighting Lamp 1. On the lower side of this section (-Y axis side), the optical units 2-21 to 2-28 are arranged in the LED lighting fixture 1. On the lowermost side, the optical units 2-81 to 2-88 are arranged in the LED lighting fixture 1. These optical units 2 may have the same specifications or different specifications, as described below. In addition, when viewed from the front side (+Z axis side), the LED lighting fixture 1 is square, but it may also be rectangular or circular. The plurality of optical units 2 are appropriately arranged according to the shape of the lamp main body 12 of the LED lighting lamp 1.

圖2為表示LED照明燈具1之部分剖面圖，為光學單元2-41和2-51的剖面圖。LED照明燈具1係由LED光源8、載放LED光源8之電路基板6、燈具主體12、防護罩13等構成。來自LED光源8的光之光軸L係與Z軸方向平行。 FIG. 2 is a partial cross-sectional view showing the LED lighting fixture 1, which is a cross-sectional view of the optical units 2-41 and 2-51. The LED lighting lamp 1 is composed of an LED light source 8, a circuit board 6 on which the LED light source 8 is placed, a lamp body 12, a protective cover 13, and the like. The optical axis L of the light from the LED light source 8 is parallel to the Z axis direction.

燈具主體12係由鋁壓鑄等之金屬製成並且具有正方形或圓形之深盤形狀，在前面側(+Z軸側)具有內側面12c。且，燈具主體12在背面側(-Z軸側)具有複數個散熱片12h。散熱片12h，係將由LED光源8的發光所產生的熱量透過電路基板6往外部散發。 The lamp main body 12 is made of metal such as aluminum die-casting and has a square or circular deep plate shape, and has an inner side surface 12c on the front side (+Z axis side). In addition, the lamp main body 12 has a plurality of heat sinks 12h on the back side (-Z axis side). The heat sink 12h radiates the heat generated by the light emission of the LED light source 8 through the circuit board 6 to the outside.

此外，燈具主體12設置有一電路基板6，以便與其內側面12c緊密接觸。複數個LED光源8焊接到電路基板6上，且透過電路基板6讓電源供應到LED光源8，形成點亮LED光源8之構造。 In addition, the main body 12 of the lamp is provided with a circuit board 6 so as to be in close contact with the inner surface 12c thereof. A plurality of LED light sources 8 are soldered to the circuit board 6 and power is supplied to the LED light source 8 through the circuit board 6 to form a structure for lighting the LED light source 8.

此外，在內側面12c的電路基板6的上側(+Z軸側)，配置後述的複數個光學單元2。在圖2中，具有相同規格的光學單元2-41和2-51被配置成嵌合到內側面12c。且，在複數個光學單元2的上側(+Z軸側)配置一防護罩13。防護罩13由透明玻璃或透明塑料(例如聚碳酸酯或丙烯酸(PMMA)等)形成，以射出從LED光源8發出的光，並且LED照明燈具1內部受到保護和防水。 In addition, on the upper side (+Z axis side) of the circuit board 6 on the inner side surface 12c, a plurality of optical units 2 described later are arranged. In FIG. 2, the optical units 2-41 and 2-51 having the same specifications are configured to be fitted to the inner surface 12c. Furthermore, a protective cover 13 is arranged on the upper side (+Z axis side) of the plurality of optical units 2. The protective cover 13 is formed of transparent glass or transparent plastic (for example, polycarbonate or acrylic (PMMA), etc.) to emit light emitted from the LED light source 8, and the inside of the LED lighting fixture 1 is protected and waterproof.

〈光學單元之概要〉 <Overview of Optical Unit>

光學單元2透過反射光學構件22和透明光學構件26的組合將來自LED光源8的光照射到預定的照射區域。具體而言，光學單元2係由將圖3所示的透明光學 構件26和反射光學構件22各一個為一組所構成。圖3(a)係從+Z軸方向觀察到的前視圖，圖3(b)係沿圖3(a)的B-B線剖面圖，圖3(c)係沿圖3(a)的C-C線的剖面圖，圖3(d)係表示光學單元2的反射光學構件22和透明光學構件26為分離狀態的透視圖。又，為了幫助理解，圖3(d)係在反射光學構件22的斜視方向與透明光學構件26斜視方向略微偏離的情況下繪製。如圖3(a)所示，當從正面觀察光學單元2時，可以觀察到反射光學構件22，並且可觀察到透明光學構件26的正面(射出面)26c。 The optical unit 2 irradiates the light from the LED light source 8 to a predetermined irradiation area through the combination of the reflective optical member 22 and the transparent optical member 26. Specifically, the optical unit 2 is composed of the transparent optical The member 26 and the reflective optical member 22 are each constituted as a set. Figure 3(a) is a front view viewed from the +Z axis direction, Figure 3(b) is a cross-sectional view taken along line BB of Figure 3(a), and Figure 3(c) is taken along line CC of Figure 3(a) 3(d) is a perspective view showing the reflective optical member 22 and the transparent optical member 26 of the optical unit 2 in a separated state. In addition, to help understanding, FIG. 3(d) is drawn when the oblique direction of the reflective optical member 22 is slightly deviated from the oblique direction of the transparent optical member 26. As shown in FIG. 3(a), when the optical unit 2 is viewed from the front, the reflective optical member 22 can be observed, and the front surface (exit surface) 26c of the transparent optical member 26 can be observed.

(反射光學構件 第1例) (First example of reflective optical member)

首先，將說明第1例的反射光學構件22。如圖3(a)和(b)所示，反射光學構件22具有四個圓形開口之錐形面22t，圓形開口的錐形面22t的直徑隨著遠離射出面(+Z軸方向)而擴大。四個圓形開口對應於四個LED光源8(茲參考圖2)的光軸L。即使反射光學構件22具有四個圓形開口，但也可僅由一個圓形開口構成，或者也可由2或3個圓形開口構成，或者由9個(3 * 3)圓形開口構成。由於反射光學構件22係將來自透過透明光學構件26入射的LED光源8的光反射在錐形面22t上，所以至少錐形面22t較佳地要進行鏡面拋光。另外，反射光學構件22的框體的前面22c較佳地也要進行鏡面拋光。當來自LED光源8的一部分光被玻璃等的防護罩13反射時，會讓來自防護罩13的反射光再次被反射到射出側。反射光學構件22可以為鋁壓鑄件，或鍍鎳的塑料樹脂。錐形面22t較佳地相對於光軸L傾斜10°至20°。 First, the reflective optical member 22 of the first example will be explained. As shown in Figure 3 (a) and (b), the reflective optical member 22 has four tapered surfaces 22t with circular openings, and the diameter of the tapered surface 22t of the circular openings increases away from the emission surface (+Z axis direction) And expand. The four circular openings correspond to the optical axis L of the four LED light sources 8 (refer to FIG. 2 here). Even if the reflective optical member 22 has four circular openings, it may be composed of only one circular opening, or may be composed of 2 or 3 circular openings, or may be composed of 9 (3*3) circular openings. Since the reflective optical member 22 reflects the light from the LED light source 8 incident through the transparent optical member 26 on the tapered surface 22t, at least the tapered surface 22t is preferably mirror polished. In addition, the front surface 22c of the frame of the reflective optical member 22 is preferably also mirror polished. When a part of the light from the LED light source 8 is reflected by the protective cover 13 such as glass, the reflected light from the protective cover 13 will be reflected to the emission side again. The reflective optical member 22 may be aluminum die-casting, or nickel-plated plastic resin. The tapered surface 22t is preferably inclined with respect to the optical axis L by 10° to 20°.

如圖3(a)和(c)所示，通孔22a和基座22b形成在四個圓形開口的中心。螺栓(未圖示)等之緊固裝置插入到通孔22a中，且螺栓等之頭部與基座22b抵接。如圖3(c)和(d)所示，由反射光學構件22的背面22d形成為作為第二接合部的圓錐台22e。通孔22a形成在圓錐台22e的中心。此外，大於等於 一個的定位凸起22f也可形成在反射光學構件22的背面22d上。円錐台22e和定位凸起22f用於與透明光學構件26定位且與來自LED光源8的光的光軸L匹配。 As shown in Figs. 3(a) and (c), the through hole 22a and the base 22b are formed in the center of the four circular openings. A fastening device such as a bolt (not shown) is inserted into the through hole 22a, and the head of the bolt or the like abuts against the base 22b. As shown in FIGS. 3(c) and (d), the back surface 22d of the reflective optical member 22 is formed as a truncated cone 22e as a second joining portion. The through hole 22a is formed in the center of the truncated cone 22e. In addition, greater than or equal to One positioning protrusion 22f may also be formed on the back surface 22d of the reflective optical member 22. The frustum 22e and the positioning protrusion 22f are used for positioning with the transparent optical member 26 and matching with the optical axis L of the light from the LED light source 8.

(透明光學構件 第1例) (First example of transparent optical member)

其次，將說明透明光學構件26。透明光學構件26較佳由透明玻璃或透明塑料(例如聚碳酸酯或丙烯酸(PMMA)等)構成。如圖3(b)和(d)所示，透明光學構件26具有四個形成為半橢圓體的外殼26g，並且半橢圓體的外殼26g隨著接近射出面側(+Z軸側)而擴大直徑。透明光學構件26具有四個外殼26g，但也可僅由一個外殼構成，或者也可由2或3個外殼構成，或者也可由9個(3 * 3)外殼構成。例如，在大於等於兩個外殼的情況下，較佳地前面26c為彼此連結的構造。四個外殼26g在入射側(-Z軸側)形成有凹部，並且凹部容置有LED光源8。凹部包含：一入射前面26k，面向LED光源8(茲參考圖2)；及一入射圓錐面26j，相對於電路基板6(茲參考圖2)傾斜設置。入射前面26k和入射圓錐面26j將從LED光源8射出的光引導到透明光學構件26內。且，被引導到透明光學構件26內的光，係在外殼26g的內表面反射並從透明光學構件26的前面26c射出，或是光從透明光學構件26的前面26c射出，而非在外殼26g的內表面反射。前面26c係面向凹部的射出面。 Next, the transparent optical member 26 will be explained. The transparent optical member 26 is preferably made of transparent glass or transparent plastic (for example, polycarbonate or acrylic (PMMA), etc.). As shown in FIGS. 3(b) and (d), the transparent optical member 26 has four housings 26g formed as semi-ellipsoids, and the semi-ellipsoidal housing 26g expands as it approaches the emission surface side (+Z axis side) diameter. The transparent optical member 26 has four housings 26g, but may be composed of only one housing, or may be composed of 2 or 3 housings, or may be composed of 9 (3*3) housings. For example, in the case of two or more housings, the front face 26c is preferably a structure connected to each other. The four housings 26g are formed with recesses on the incident side (-Z axis side), and the recesses accommodate the LED light source 8. The concave portion includes: an incident front face 26k facing the LED light source 8 (refer to FIG. 2); and an incident cone surface 26j that is arranged obliquely with respect to the circuit board 6 (refer to FIG. 2). The incident front surface 26 k and the incident cone surface 26 j guide the light emitted from the LED light source 8 into the transparent optical member 26. Furthermore, the light guided into the transparent optical member 26 is reflected on the inner surface of the housing 26g and emitted from the front face 26c of the transparent optical member 26, or the light is emitted from the front face 26c of the transparent optical member 26 instead of the housing 26g The inner surface is reflected. The front surface 26c is the exit surface facing the recess.

如圖3(c)和(d)所示，從背面26d延伸的圓錐台26h形成在四個外殼26g的中心，且通孔26a形成在圓錐台26h的中心處。螺栓等之緊固裝置(未圖示)插入到通孔26a中，該緊固裝置係透過電路基板6的通孔緊固到燈具本體12(茲參考圖2)。在圓錐台26h內側，形成作為第一接合部的錐形凹部26e，反射光學構件22的圓錐台22e係嵌入到圓錐凹部26e中。在透明光學構件26的前面26c上，形成有凹陷的定位孔26f，且定位凸起22f嵌入到定位孔26f中。藉此，讓反射光學構件22和透明光學構件26定位。此外，若形成五角圓錐，四角 圓錐或三角圓錐等來取代圓錐台22e，也可用圓錐凹部26e或五角圓錐凹部，四角圓錐凹部或者三角圓錐凹部等形成。利用如此的多邊形之錐形台和錐形凹部，則就不需要設置定位凸起22f。 As shown in FIGS. 3(c) and (d), a truncated cone 26h extending from the back surface 26d is formed at the center of the four housings 26g, and a through hole 26a is formed at the center of the truncated cone 26h. A fastening device (not shown) such as a bolt is inserted into the through hole 26a, and the fastening device is fastened to the lamp body 12 through the through hole of the circuit board 6 (refer to FIG. 2). Inside the truncated cone 26h, a tapered recess 26e is formed as a first joining portion, and the truncated cone 22e of the reflective optical member 22 is fitted into the conical recess 26e. On the front face 26c of the transparent optical member 26, a concave positioning hole 26f is formed, and the positioning protrusion 22f is embedded in the positioning hole 26f. Thereby, the reflective optical member 22 and the transparent optical member 26 are positioned. In addition, if a pentagonal cone is formed, the four corners Instead of the truncated cone 22e, a cone or a triangular cone, etc., can also be formed with a conical recess 26e, a pentagonal conical recess, a quadrangular conical recess, or a triangular conical recess. With such a polygonal cone and conical recess, there is no need to provide positioning protrusions 22f.

再者，如圖3(c)和(d)所示，透明光學構件26具有四根支撐腳26b，其用以調整LED光源8和透明光學構件26之間的距離。四根支撐腳26b係比Z軸方向上的外殼26g的長度長，且比圓錐台26h在Z軸方向上的長度長。透明光學構件26具有四根支撐腳26b，但其數量不受限制，也可為大於等於三根。此外，定位凸起26m也可形成在支撐腳26b上，使得透明光學構件26和電路基板6可以定位。 Furthermore, as shown in FIGS. 3(c) and (d), the transparent optical member 26 has four supporting legs 26b, which are used to adjust the distance between the LED light source 8 and the transparent optical member 26. The four supporting legs 26b are longer than the length of the housing 26g in the Z-axis direction and longer than the length of the truncated cone 26h in the Z-axis direction. The transparent optical member 26 has four supporting legs 26b, but the number is not limited, and may be three or more. In addition, positioning protrusions 26m may also be formed on the supporting feet 26b so that the transparent optical member 26 and the circuit board 6 can be positioned.

(反射光學構件 第2例) (Second example of reflective optical member)

其次，使用圖4來說明第2例的反射光學構件23。在圖3說明過的第1例的反射光學構件22，從前面22c到背面22d的長度(Z軸方向)對應於四個圓形開口的錐形面22t的長度。第2例的反射光學構件23，其中從框體的前面23c到背面23d的長度(Z軸方向)係短的，且形成有四個從前面23c突出的圓形開口的錐面22t。此為第1例的反射光學構件22與第2例的反射光學構件23之間的差異。 Next, the reflective optical member 23 of the second example will be described using FIG. 4. In the reflective optical member 22 of the first example described in FIG. 3, the length (Z-axis direction) from the front surface 22c to the back surface 22d corresponds to the length of the tapered surface 22t of four circular openings. In the reflective optical member 23 of the second example, the length (Z-axis direction) from the front surface 23c to the back surface 23d of the housing is short, and four tapered surfaces 22t with circular openings protruding from the front surface 23c are formed. This is the difference between the reflective optical member 22 of the first example and the reflective optical member 23 of the second example.

第2例的反射光學構件23，可以形成比第1例的反射光學構件22輕，且可使用與反射光學構件22相同的材料。兩者之間的功能並沒有顯著差異。在圖4中，具有與第1例的反射光學構件22相同功能的構件，在末端用相同的符號表示。例如，第1例的圓錐台22e對應於第2例的圓錐台23e。 The reflective optical member 23 of the second example can be formed to be lighter than the reflective optical member 22 of the first example, and the same material as the reflective optical member 22 can be used. There is no significant difference in function between the two. In FIG. 4, members having the same function as the reflective optical member 22 of the first example are indicated by the same symbols at the ends. For example, the truncated cone 22e of the first example corresponds to the truncated cone 23e of the second example.

(透明光學構件 第2例) (Second example of transparent optical member)

其次，使用圖5來說明第2例的透明光學構件27。在圖3說明過的第1例的透明光學構件26，在半橢圓體的外殼26g的表面上沒有形成凹槽等。第2例的透明 光學構件27的外殼27g具有複數個凹槽27gg，其以光軸L為基準徑向延伸。特別，如圖5(c)所示，在外殼27g上繪製複數個徑向延伸的凹槽27gg。此為第1例的透明光學構件26與第2例的透明光學構件27之間的差異。 Next, the transparent optical member 27 of the second example will be described using FIG. 5. The transparent optical member 26 of the first example described in FIG. 3 has no grooves or the like formed on the surface of the semi-ellipsoidal housing 26g. Transparency of the second case The housing 27g of the optical member 27 has a plurality of grooves 27gg, which extend radially with the optical axis L as a reference. In particular, as shown in FIG. 5(c), a plurality of radially extending grooves 27gg are drawn on the housing 27g. This is the difference between the transparent optical member 26 of the first example and the transparent optical member 27 of the second example.

與第1例的透明光學構件26相比，第2例的透明光學構件27在透明光學構件27內，可將來自LED光源8的光在凹槽27gg反射。尤其，可增加在X軸方向或Y軸方向而不是Z軸方向上反射的光量。因此，藉由與第1例的反射光學構件22或第2例的反射光學構件23的組合，可以增加從光學單元2射出的光之有效光束。增加有效光束可抑制因漏光(無效光束)引起的炫光(Glare)。 Compared with the transparent optical member 26 of the first example, the transparent optical member 27 of the second example is in the transparent optical member 27 and can reflect the light from the LED light source 8 in the groove 27gg. In particular, the amount of light reflected in the X-axis direction or the Y-axis direction instead of the Z-axis direction can be increased. Therefore, by combining with the reflective optical member 22 of the first example or the reflective optical member 23 of the second example, the effective beam of light emitted from the optical unit 2 can be increased. Increasing the effective beam can suppress glare (Glare) caused by light leakage (ineffective beam).

於此，使用圖6補充有效光束。在定義有效光束時，可以透過光束角度和視場角度來指定。所謂光束角度係照明強度達到峰值強度的50%的角度。所謂視場角度係照明強度達到峰值強度的10%的角度。意味在該光束角度外洩漏的光之視場角越小，則有效光束越大，且意味著抑制了由漏光引起的炫光。此外，從光束角度到視場角度的角度越小，方向性越高。 Here, Figure 6 is used to supplement the effective beam. When defining the effective beam, it can be specified through the beam angle and the field of view angle. The so-called beam angle is the angle at which the illumination intensity reaches 50% of the peak intensity. The so-called field of view angle is the angle at which the illumination intensity reaches 10% of the peak intensity. It means that the smaller the angle of view of the light that leaks outside the beam angle, the larger the effective beam, and it means that glare caused by light leakage is suppressed. In addition, the smaller the angle from the beam angle to the angle of view, the higher the directivity.

圖7(a)為透明光學構件27之外殼27g的放大圖，圖7(b)為沿(a)之B-B線剖面圖。如圖7(b)所示，形成具有V字形剖面的凹槽27gg。剖面不限於V字形，也可為U字形凹槽27gg。此外，儘管未圖示，但也可為波狀凹槽27gg。此外，在圖7(b)中，凹槽27gg的寬度形成為以規則的間隔從-Z軸方向往+Z軸方向擴廣，但凹槽27gg的寬度並非為恆定，也可以為可變。較佳為在透明光學構件27上盡可能讓大多來自LED光源8的光在凹槽27gg反射之形狀。 Fig. 7(a) is an enlarged view of the housing 27g of the transparent optical member 27, and Fig. 7(b) is a sectional view taken along the line B-B of (a). As shown in FIG. 7(b), a groove 27gg having a V-shaped cross section is formed. The cross-section is not limited to the V-shape, and may also be a U-shaped groove 27gg. In addition, although it is not shown in the figure, it may be a corrugated groove 27gg. In addition, in FIG. 7(b), the width of the groove 27gg is formed to expand from the −Z axis direction to the +Z axis direction at regular intervals, but the width of the groove 27gg is not constant and may be variable. Preferably, the transparent optical member 27 has a shape that allows most of the light from the LED light source 8 to be reflected in the groove 27gg.

圖7(c)為透明光學構件27之外殼27g的放大圖，且形成不同於圖7(a)的溝槽27gw。雖然複數個溝槽27gw以光軸L為基準徑向延伸，但並非形成直線而是形成波狀之曲線。波狀之曲線溝槽27gw將來自LED光源8的光反射到透明光學構件27內。 FIG. 7(c) is an enlarged view of the housing 27g of the transparent optical member 27, and a groove 27gw different from that of FIG. 7(a) is formed. Although the plurality of grooves 27gw extend radially with reference to the optical axis L, they do not form a straight line but a wavy curve. The wave-shaped curved groove 27gw reflects the light from the LED light source 8 into the transparent optical member 27.

〈LED照明燈具的照射角度〉 〈LED lighting angle of illumination〉

使用圖8和圖9來說明LED照明燈具1的照射角度和其有效光束。圖8(a)為照射角度為15度的LED照明燈具1的照射結果，圖8(b)為LED照明燈具1的照射角度與照射強度的曲線圖。圖8(c)為用在LED照明燈具1之光學單元2的透明光學構件27的剖面圖。該透明光學構件27係用於照射角度15度。該用於照射角度15度的透明光學構件27係用於圖1所示之光學單元2(從2-11~2-88)。 8 and 9 are used to illustrate the illumination angle of the LED lighting fixture 1 and its effective beam. FIG. 8(a) is the irradiation result of the LED lighting lamp 1 with an irradiation angle of 15 degrees, and FIG. 8(b) is a graph of the irradiation angle and the irradiation intensity of the LED lighting lamp 1. FIG. 8(c) is a cross-sectional view of the transparent optical member 27 used in the optical unit 2 of the LED lighting fixture 1. The transparent optical member 27 is used for an irradiation angle of 15 degrees. The transparent optical member 27 for an irradiation angle of 15 degrees is used for the optical unit 2 (from 2-11 to 2-88) shown in FIG. 1.

圖9(a)為照射角度為45度的LED照明燈具1的照射結果，圖9(b)為LED照明燈具1的照射角度與照射強度的曲線圖。圖9(c)為用在LED照明燈具1之光學單元2的透明光學構件27的剖面圖。該透明光學構件27係用於照射角度45度。該用於照射角度45度的透明光學構件27係用於圖1所示之光學單元2(從2-11~2-88)。 Fig. 9(a) is the irradiation result of the LED lighting lamp 1 with an irradiation angle of 45 degrees, and Fig. 9(b) is a graph of the irradiation angle and the irradiation intensity of the LED lighting lamp 1. FIG. 9(c) is a cross-sectional view of the transparent optical member 27 used in the optical unit 2 of the LED lighting fixture 1. The transparent optical member 27 is used for an irradiation angle of 45 degrees. The transparent optical member 27 for the irradiation angle of 45 degrees is used for the optical unit 2 (from 2-11 to 2-88) shown in FIG. 1.

利用改變透明光學構件27的外殼27g的形狀和凹部(入射前面27k和入射圓錐面27j)的形狀，就可以改變照射角度。另一方面，不需要改變第1例的反射光學構件22的錐形面22t的錐角或第2例的反射光學構件23的錐形面22t的錐角。 By changing the shape of the housing 27g of the transparent optical member 27 and the shape of the recesses (the incident front surface 27k and the incident cone surface 27j), the irradiation angle can be changed. On the other hand, there is no need to change the taper angle of the tapered surface 22t of the reflective optical member 22 of the first example or the taper angle of the tapered surface 22t of the reflective optical member 23 of the second example.

如圖8(a)所示，照射角度為15度的LED照明燈具1能夠在250m的前方照射68.0m的有效光束直徑。LED照明燈具1的額定光束約為50000流明，中心照度為8.0勒克斯(lux)。如圖8(b)所示之表格，橫軸為角度，縱軸為相對強度。光束角度(50%)約為14.3度，視場角度(10%)約為28.0度。由此可知，LED照明燈具1具有極高的有效光束。 As shown in FIG. 8(a), the LED lighting fixture 1 with an irradiation angle of 15 degrees can irradiate an effective beam diameter of 68.0 m in front of 250 m. The rated beam of the LED lighting fixture 1 is about 50,000 lumens, and the center illuminance is 8.0 lux. In the table shown in Figure 8(b), the horizontal axis is the angle and the vertical axis is the relative strength. The beam angle (50%) is approximately 14.3 degrees, and the field of view angle (10%) is approximately 28.0 degrees. It can be seen that the LED lighting fixture 1 has a very high effective light beam.

其次，說明圖8(c)所示之照射角度為15度的透明光學構件27的外殼27g的形狀和凹部(入射前面27k和入射圓錐面27j)的形狀。透明光學構件27的外殼係高度(Z軸方向)H8，寬度和深度(X，Y軸方向)D8。且，外殼27g形成為具有大曲率半徑(小曲率)的曲面。入射前面27k係朝向-Z軸側凸出 的曲面，其寬度D1形成較窄。入射前面27k具有凸透鏡的功能。入射圓錐面27j也在光軸L側為凸狀曲面，其高度H1形成較高。 Next, the shape of the housing 27g and the shape of the recess (incident front surface 27k and incident cone surface 27j) of the transparent optical member 27 with an irradiation angle of 15 degrees shown in FIG. 8(c) will be described. The housing of the transparent optical member 27 has a height (Z axis direction) H8, and a width and depth (X, Y axis direction) D8. In addition, the housing 27g is formed as a curved surface having a large radius of curvature (small curvature). The 27k front of the incident surface protrudes toward the -Z axis side The width D1 of the curved surface is narrow. The incident front face 27k functions as a convex lens. The incident cone surface 27j is also a convex curved surface on the optical axis L side, and its height H1 is formed high.

如圖9(a)所示，照明角度為45度的LED照明燈具1，可以照射前方100m的有效光束直徑81.6m。LED照明燈具1的額定光束約為50000流明，中心照度為96勒克斯。如圖8(b)所示，光束角度(50%)約為43.5度，視場角度(10%)約為62.0度。由此可知，LED照明燈具1具有極高的有效光束。 As shown in Fig. 9(a), the LED lighting fixture 1 with an illumination angle of 45 degrees can illuminate an effective beam diameter of 81.6m in the front 100m. The rated beam of the LED lighting fixture 1 is about 50,000 lumens, and the center illuminance is 96 lux. As shown in Figure 8(b), the beam angle (50%) is approximately 43.5 degrees, and the field of view angle (10%) is approximately 62.0 degrees. It can be seen that the LED lighting fixture 1 has a very high effective light beam.

其次，說明圖9(c)所示之照射角度為45度的透明光學構件27的外殼27g的形狀和凹部(入射前面27k和入射圓錐面27j)的形狀。與照射角度為45度的透明光學構件27相同，照射角度為45度的透明光學構件27的外殼也是高度H8，寬度和深度為D8。且，外殼27g形成為具有小曲率半徑(大曲率)的曲面。入射前面27k係朝向-Z軸側凸出的曲面，其寬度D3形成較寬。入射前面27k具有凸透鏡的功能。入射圓錐面27j也在光軸L側為凸狀曲面或者直線，其高度H3形成較低。 Next, the shape of the housing 27g of the transparent optical member 27 whose irradiation angle is 45 degrees shown in FIG. 9(c) and the shape of the recesses (incident front surface 27k and incident cone surface 27j) will be described. Like the transparent optical member 27 with an irradiation angle of 45 degrees, the housing of the transparent optical member 27 with an irradiation angle of 45 degrees also has a height H8, and a width and depth of D8. Furthermore, the housing 27g is formed as a curved surface having a small radius of curvature (large curvature). The incident front face 27k is a curved surface convex toward the -Z axis side, and its width D3 is formed to be relatively wide. The incident front face 27k functions as a convex lens. The incident cone surface 27j is also a convex curved surface or a straight line on the optical axis L side, and its height H3 is formed low.

當比較入射前面27k的寬度D1和寬度D3時，寬度D3約為寬度D1的兩倍。若比較入射圓錐面27j的高度H1和高度HD3，高度H3約為高度H1的1/3。因此，利用調整外殼27g的曲率半徑，入射前面27k和入射圓錐面27j的寬度和高度，可讓LED照明燈具1的照射角度適當地從10度改變到60度。 When comparing the width D1 and the width D3 of the incident front face 27k, the width D3 is approximately twice the width D1. Comparing the height H1 and the height HD3 of the incident cone 27j, the height H3 is approximately 1/3 of the height H1. Therefore, by adjusting the radius of curvature of the housing 27g, the width and height of the incident front surface 27k and the incident cone surface 27j, the illumination angle of the LED lighting fixture 1 can be appropriately changed from 10 degrees to 60 degrees.

此外，透明光學構件27具有相同的高度H8，寬度和深度D8，由於光學單元2具有相同的尺寸，所以具有不同照射角度的透明光學構件27的光學單元2也可配置在燈具本體12中。例如，於LED照明燈具1的最外周(2-11~2-18,2-21,2-28,2-31，2-38，......2-81~2-88)配置具有照射角度為15度的透明光學構件27的光學單元2。於該內側配置具有照射角度為30度的透明光學構件27的光學單元2。並且，也可以將具有照射角度為45度的透明光學構件27的光學單元2配置在中心區域。此外，於LED照明燈具1的頂部(+Y軸側)配置具有照射角 度為15度的透明光學構件27的光學單元2，於中間段配置具有照射角度為30度的透明光學構件27的光學單元2，於最底部(-Y軸側)也可配置具有照射角度為45度的透明光學構件27的光學單元2。 In addition, the transparent optical member 27 has the same height H8, width and depth D8. Since the optical unit 2 has the same size, the optical unit 2 of the transparent optical member 27 with different illumination angles can also be arranged in the lamp body 12. For example, on the outermost circumference of LED lighting fixture 1 (2-11~2-18, 2-21,2-28, 2-31, 2-38, ... 2-81~2-88) The optical unit 2 has a transparent optical member 27 with an irradiation angle of 15 degrees. An optical unit 2 having a transparent optical member 27 with an irradiation angle of 30 degrees is arranged on the inner side. In addition, the optical unit 2 having the transparent optical member 27 with an irradiation angle of 45 degrees may be arranged in the central area. In addition, the top (+Y axis side) of the LED lighting fixture 1 is arranged with an illumination angle The optical unit 2 of the transparent optical member 27 with an angle of 15 degrees, the optical unit 2 with the transparent optical member 27 with an irradiation angle of 30 degrees is arranged in the middle section, and the optical unit 2 with an irradiation angle of 30 degrees can also be arranged at the bottom (-Y axis side) The optical unit 2 of the 45-degree transparent optical member 27.

(a) (a)

2:光學單元 2: Optical unit

22:反射光學構件 22: reflective optical components

22a:通孔 22a: Through hole

22b:基座 22b: Pedestal

22c:前面 22c: front

22t:錐形面 22t: tapered surface

26c:前面 26c: front

(b) (b)

2:光學單元 2: Optical unit

22:反射光學構件 22: reflective optical components

26:透明光學構件 26: Transparent optical components

22t:錐形面 22t: tapered surface

26c:前面 26c: front

26g:外殼 26g: shell

26h:圓錐台 26h: truncated cone

26j:入射圓錐面 26j: Incident cone

26k:入射前面 26k: incident front

(c) (c)

2:光學單元 2: Optical unit

22:反射光學構件 22: reflective optical components

26:透明光學構件 26: Transparent optical components

22a:通孔 22a: Through hole

22b:基座 22b: Pedestal

22c:前面 22c: front

22d:背面 22d: back

22e:圓錐台 22e: truncated cone

22f:定位凸起 22f: positioning bump

26a:通孔 26a: Through hole

26b:支撐腳 26b: Support foot

26c:前面 26c: front

26d:背面 26d: back

26e:圓錐凹部 26e: Conical recess

26f:定位孔 26f: positioning hole

26h:圓錐台 26h: truncated cone

(d) (d)

22:反射光學構件 22: reflective optical components

22a:通孔 22a: Through hole

22d:背面 22d: back

22e:圓錐台 22e: truncated cone

22f:定位凸起 22f: positioning bump

22t:錐形面 22t: tapered surface

26:透明光學構件 26: Transparent optical components

26a:通孔 26a: Through hole

26b:支撐腳 26b: Support foot

26d:背面 26d: back

26g:外殼 26g: shell

26h:圓錐台 26h: truncated cone

26j:入射圓錐面 26j: Incident cone

Claims (8)

一種光學單元，具備：一透明光學構件，由用於LED照明燈具之透明材料所構成；及一反射光學構件，經鏡面拋光，其中該透明光學構件，具有：一外殼，相對於配置在基板上的LED光源的光軸形成為半橢圓形，並且包含以該光軸為基準以放射狀延伸之複數個溝槽；一凹部，從該外殼凹設，並容置該LED光源；及一射出面，與該凹部相對，射出來自該LED光源的光，該反射光學構件，具有一背面，設置成與該射出面接觸並具有圓形開口；及一錐形面，直徑隨著遠離該圓形開口而擴大。 An optical unit comprising: a transparent optical member made of transparent materials for LED lighting fixtures; and a reflective optical member, mirror-polished, wherein the transparent optical member has: a housing arranged on a substrate relative to The optical axis of the LED light source is formed in a semi-elliptical shape and includes a plurality of grooves extending radially based on the optical axis; a concave portion recessed from the housing and accommodating the LED light source; and an emission surface , Opposite to the concave portion, emitting light from the LED light source, the reflective optical member has a back surface that is arranged to contact the emitting surface and has a circular opening; and a tapered surface whose diameter increases away from the circular opening And expand. 如申請專利範圍第1項所述之光學單元，其中該透明光學構件的該溝槽部，包括沿直線延伸的凹槽或彎曲的凹槽。 According to the optical unit described in claim 1, wherein the groove portion of the transparent optical member includes a groove extending along a straight line or a curved groove. 一種光學單元，具備：一透明光學構件；及一反射光學構件，其該透明光學構件，具有：一外殼，相對於配置在基板上的LED光源的光軸形成為半橢圓形；一凹部，容置該LED光源並從該外殼凹設；及一射出面，與該凹部相對，射出來自該LED光源的光，該反射光學構件，具有一背面，設置成與該射出面接觸並具有圓形開口；及一錐形面，直徑隨著遠離該圓形開口而擴大。 An optical unit is provided with: a transparent optical member; and a reflective optical member. The transparent optical member has: a housing formed in a semi-elliptical shape with respect to the optical axis of an LED light source arranged on a substrate; and a concave portion for containing The LED light source is arranged and recessed from the housing; and an exit surface, opposite to the recess, emits light from the LED light source, the reflective optical member has a back surface, is arranged to contact the exit surface and has a circular opening ; And a tapered surface, the diameter of which expands away from the circular opening. 如申請專利範圍第1項或第3項所述之光學單元，其中該透明光學構件的該凹部，包括一入射前面，與該LED光源對向；及一入射圓錐面，相對於該基板設置為傾斜。 The optical unit described in item 1 or item 3 of the scope of patent application, wherein the concave portion of the transparent optical member includes an incident front surface facing the LED light source; and an incident cone surface disposed relative to the substrate tilt. 如申請專利範圍第4項所述之光學單元，其中藉由改變該透明光學構件的該外殼、該入射前面、以及該入射圓錐面的形狀，而變更從由該射出面射出的該LED光源照射光的角度。 The optical unit according to claim 4, wherein by changing the shape of the housing, the incident front surface, and the incident conical surface of the transparent optical member, the illumination from the LED light source emitted from the emitting surface is changed The angle of light. 如申請專利範圍第1項至第5項之任一項所述之光學單元，其中該透明光學構件係由配置成矩陣狀的複數個外殼組成，且該射出面彼此連接，而包含形成於該射出面上的第一結合部； 該反射光學構件係由配置成矩陣狀的複數個圓形開口組成，且透過框體彼此連接，而包含形成於該框體上且與該第一結合部嵌合的第二結合部。 The optical unit according to any one of items 1 to 5 in the scope of the patent application, wherein the transparent optical member is composed of a plurality of housings arranged in a matrix, and the emitting surfaces are connected to each other, including the The first joint on the injection surface; The reflective optical member is composed of a plurality of circular openings arranged in a matrix, and connected to each other through a frame body, and includes a second coupling portion formed on the frame body and fitted with the first coupling portion. 如申請專利範圍第4項所述之光學單元，其中該反射光學構件具有一與該背面相反側的正面，並且該圓錐面由該正面突出而形成。 The optical unit described in claim 4, wherein the reflective optical member has a front surface opposite to the back surface, and the conical surface is formed by protruding from the front surface. 一種LED照明燈具，具備：如申請專利範圍第1項至第7項之任一項所述之光學單元；及一LED基板，具有以矩陣狀配置的LED光源，以便容置在該凹部中。 An LED lighting fixture is provided with: the optical unit according to any one of items 1 to 7 of the scope of patent application; and an LED substrate with LED light sources arranged in a matrix so as to be accommodated in the recess.
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