TWI661236B - Mask optics for reducing glare - Google Patents
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Abstract
一種光罩光學元件,包括一光學元件;其中,該光學元件具有一入光面及一與該入光面彼此相反設置的出光面,該出光面上設有複數微米格柵結構,而該等微米格柵結構係為複數個兩斜面夾一平面之結構相聯而成;藉此,該等斜面係令一光源射出的水平偏振光線產生折射,並在該微米格柵結構中循環,並與該光源所射出之垂直偏振光線整合,再一併射出該光學元件,降低不良的水平偏振光線產生的眩光,進一步可增加流明。 A reticle optical element includes an optical element, wherein the optical element has a light incident surface and a light emitting surface disposed opposite to the light incident surface, and the light emitting surface is provided with a plurality of micrometer grid structures, and these The micro-grid structure is a structure in which a plurality of two inclined planes sandwich a plane; thereby, the inclined planes refract horizontally polarized light emitted by a light source, and circulate in the micro-grid structure, and The vertically polarized light emitted by the light source is integrated, and the optical element is emitted together to reduce the glare caused by the poor horizontally polarized light, which can further increase the lumen.
Description
本發明係有關一種用於降低眩光之光學元件,尤指一種可降低光源所造成的眩光,還可增加流明。 The present invention relates to an optical element for reducing glare, and more particularly to an optical element capable of reducing glare caused by a light source and increasing lumen.
眩光是一種由於亮度分布不適當、亮度變化的幅度太大,或空間、時間上存在著極端的對比,以致引起不舒適或降低觀察重要物體的能力,或同時產生這兩種現象,而產生眩光的因素包括光源的亮度、位置、外觀大小與數量等。一般光源射出的光線係與光源垂直,而水平的偏振光線為一般燈具最常產生之眩光。 Glare is caused by improper brightness distribution, too large changes in brightness, or extreme contrasts in space and time, which cause discomfort or reduce the ability to observe important objects, or produce both of these phenomena at the same time. The factors include the brightness, position, appearance size and number of light sources. The light emitted by a general light source is perpendicular to the light source, and the horizontally polarized light is the most common glare generated by general lamps.
而市售有在光源外設一濾光片,藉以過濾水平的偏振光線,令垂直偏振光通過射出,或在燈罩上塗抹一層阻光粉等塗料,用以阻擋眩光產生,雖然此前述之方式可降低眩光產生,卻同時大幅降低原有燈光之亮度。 A commercially available filter on the light source is used to filter horizontally polarized light, so that vertical polarized light can be emitted, or a layer of light blocking powder and other coatings can be applied to the lampshade to prevent glare. Can reduce glare, but at the same time greatly reduce the brightness of the original light.
因此,本發明之發明人日前揭露了中華民國證書號I608192,其係揭露一種可降低眩光之光罩光學元件,用於改善上述習知技術的缺點。本案之發明「用於降低眩光之光罩光學元件」,是針對前案做進一步的改良,除具有原創之功能,亦增加降低眩光、提高流明的能力。 Therefore, the inventor of the present invention has recently disclosed the Republic of China Certificate No. I608192, which discloses a mask optical element capable of reducing glare, which is used to improve the shortcomings of the conventional technology. The invention of the "mask optical element for reducing glare" in this case is a further improvement on the previous case. In addition to its original function, it also increases the ability to reduce glare and improve lumen.
本發明之主要目的,在於提供一種用於降低眩光之光罩光學元件,係可降低光源所發射出來的眩光,並同時增加射出來的流明。 The main object of the present invention is to provide a mask optical element for reducing glare, which can reduce the glare emitted by a light source and increase the lumen emitted at the same time.
為達上述之目的,其技術手段在於該光罩光學元件具有一入光面以及一與該入光面彼此相反設置的出光面,其中該出光面上設有複數微米格柵結構,該等微米格柵結構係為複數個兩斜面夾一平面之結構相聯而成;而該等斜面係令一光源射出的水平偏振光線產生折射,並在該微米格柵結構中循環,進而與該光源所射出之垂直偏振光線整合,再一併射出該光學元件,透過折射水平偏振光線,降低不良的水平偏振光線,而水平偏振光線的循環,會結合該光源的垂直偏振光線再射出該光學元件,並非被光罩吸收,因此可進一步增加流明。 In order to achieve the above purpose, the technical means is that the mask optical element has a light incident surface and a light emitting surface opposite to the light incident surface, wherein the light emitting surface is provided with a plurality of micrometer grid structures, and the micrometers The grid structure is formed by a plurality of two inclined planes sandwiching a plane. The inclined planes refract the horizontally polarized light emitted by a light source, and circulate in the micro-grid structure. The emitted vertically polarized light is integrated, and the optical element is also emitted. The horizontally polarized light is refracted to reduce the bad horizontally polarized light. The cycle of the horizontally polarized light is combined with the vertically polarized light of the light source to emit the optical element. Absorbed by the reticle, which can further increase the lumen.
10‧‧‧光學元件 10‧‧‧ Optics
100‧‧‧入光面 100‧‧‧ Light surface
101‧‧‧出光面 101‧‧‧light surface
11‧‧‧格柵結構 11‧‧‧ Grille structure
111‧‧‧斜面 111‧‧‧ bevel
112‧‧‧平面 112‧‧‧plane
113‧‧‧V溝開口 113‧‧‧V groove opening
114‧‧‧凹陷部 114‧‧‧ Depression
20‧‧‧光源 20‧‧‧ light source
21‧‧‧垂直偏振光線 21‧‧‧ vertically polarized light
22‧‧‧水平偏振光線 22‧‧‧ horizontally polarized light
30‧‧‧導光板 30‧‧‧light guide
θ‧‧‧角度 θ ‧‧‧ angle
H1‧‧‧斜面之高度 H1‧‧‧Slope height
W1‧‧‧平面之寬度 W1‧‧‧plane width
W2‧‧‧格柵結構之寬度 W2‧‧‧Width of grille structure
圖1為本發明之剖面結構示意圖。 FIG. 1 is a schematic cross-sectional structure of the present invention.
圖2為本發明之使用狀態示意圖。 FIG. 2 is a schematic diagram of a use state of the present invention.
圖3為本發明之循環光線示意圖。 FIG. 3 is a schematic diagram of circulating light of the present invention.
圖4為本發明之另一使用狀態示意圖。 FIG. 4 is a schematic diagram of another use state of the present invention.
圖5為本發明之結構俯視圖。 FIG. 5 is a plan view of the structure of the present invention.
圖6為本發明之另一結構俯視圖。 FIG. 6 is a top view of another structure of the present invention.
圖7為本發明之另一實施例剖面圖。 FIG. 7 is a sectional view of another embodiment of the present invention.
為便於貴審查委員能對本發明之技術手段及運作過程有更進一步之認識與瞭解,茲舉例配合圖式,詳細說明如下。 In order to facilitate your review committee to have a better understanding and understanding of the technical means and operation process of the present invention, examples are given in conjunction with the drawings, which are described in detail below.
本發明有關一種用於降低眩光之光罩光學元件,請參閱圖1所示,本發明之一光罩光學元件10具有一光滑之入光面100以及一與該入光面100彼此相反設置光滑之出光面101,而該光罩光學元件10上係設有複數微米之格柵結構11,每一該格柵結構11於該出光面101處具有兩相對之斜面111,該等斜面111間具有一平面112,該平面112可為銳角或平面,因技術上較不容易達到完全銳角,故銳角之外接圓半徑R的範圍在0.01~0.7mm,又每個該格柵結構11間設有一V溝開口113;再者,該格柵結構11於該入光面100係具有一凹陷部114,該凹陷部114下凹之深度H2與水平面間為0.02mm至0.08mm。 The present invention relates to a mask optical element for reducing glare. Please refer to FIG. 1. A mask optical element 10 according to the present invention has a smooth light incident surface 100 and a smooth surface opposite to the light incident surface 100. A light emitting surface 101, and the mask optical element 10 is provided with a grid structure 11 of a plurality of micrometers. Each of the grid structures 11 has two opposite inclined surfaces 111 at the light emitting surface 101, and the inclined surfaces 111 have A plane 112, which can be an acute angle or a plane. Because it is technically difficult to reach a complete acute angle, the range of the radius R outside the acute angle is 0.01 to 0.7 mm, and a V is provided between each of the grid structures 11. The trench opening 113; further, the grid structure 11 has a recessed portion 114 on the light incident surface 100, and a depth H2 of the recessed portion 114 and a horizontal plane are 0.02 mm to 0.08 mm.
請再參閱圖1所示,該等斜面111之高度為H1,該平面112之寬度為W1,每個該格柵結構11之寬度為W2,該V溝開口113之寬度為V,而每個該格柵結構11間的角度為θ;其中W1的長度範圍為V的2%至79%,且W1的長度範圍為W2的2%至50%,H1的高度範圍為W2的30%至75%,H1的高度範圍為W1≧100%以上,θ為70°至110°,而W1之最佳長度為0.01mm至0.14mm,W2之最佳長度為0.02mm至2.9mm,H1之最佳長度為0.02mm至0.7mm;而本發明之光罩光學元件10為透明塑膠材料,係經由壓出或射出所成形,且穿透力達60%以上,其中透明塑膠材料可為PS、PC、PP、MS、壓克力等;又,該入光面100以及出光面101亦可為經AG(Anti Glare)霧化處理之AG霧化面,如此可遮住該光學元件10後方如燈泡、燈管或LED燈等光源。 Please refer to FIG. 1 again, the height of the inclined surfaces 111 is H1, the width of the plane 112 is W1, the width of each grid structure 11 is W2, the width of the V-groove opening 113 is V, and each The angle between the grid structures 11 is θ ; wherein the length of W1 ranges from 2% to 79% of V, the length of W1 ranges from 2% to 50% of W2, and the height of H1 ranges from 30% to 75 of W2. %, The height range of H1 is above W1 ≧ 100%, θ is 70 ° to 110 °, and the optimal length of W1 is 0.01mm to 0.14mm, the optimal length of W2 is 0.02mm to 2.9mm, and the optimal length of H1 The length is 0.02mm to 0.7mm; and the reticle optical element 10 of the present invention is a transparent plastic material, which is formed by extrusion or injection, and has a penetrating force of more than 60%. The transparent plastic material can be PS, PC, PP, MS, acrylic, etc. In addition, the light-incident surface 100 and the light-emitting surface 101 can also be AG atomized surfaces that have undergone AG (Anti Glare) atomization treatment, so as to cover the rear of the optical element 10 such as a light bulb, Light source such as tube or LED lamp.
請參閱圖2所示,一光源20係設於該入光面100之一側,當該光源20自該入光面100射入時,其光的穿透率為30%至55%,而當該光源20自該出光面101射入時,其穿透率為80%至100%,其中該光源20會分別產生一垂直偏振光線21以及一水平偏振光線22射入該光罩光學元件10中,該垂直偏振光線21自該入光面100進入後,直向地自該出光面101之平面112射出。 Please refer to FIG. 2, a light source 20 is disposed on one side of the light incident surface 100. When the light source 20 is incident from the light incident surface 100, its light transmittance is 30% to 55%, and When the light source 20 is incident from the light emitting surface 101, its transmittance is 80% to 100%, wherein the light source 20 will generate a vertically polarized light 21 and a horizontally polarized light 22 into the mask optical element 10, respectively. In the embodiment, the vertically polarized light 21 enters from the light incident surface 100 and then exits straight from the plane 112 of the light emitting surface 101.
請參閱圖3所示,該水平偏振光線22自該入光面100進入該光罩光學元件10時會先接觸到該等斜面111,產生第一次折射,並射向對面的該斜面111,進而令該水平偏振光線22產生第二次折射,第二次折射係將該水平偏振光線22射向該入光面100,由於該斜面111角度關係,該水平偏振光線22並非直線射向該入光面100,而是以向該垂直偏振光線21方向傾斜射入,導致經過多次折射的該水平偏振光線22與該垂直偏振光線21結合,再一併從該平面112射出。 Please refer to FIG. 3, when the horizontally polarized light 22 enters the mask optical element 10 from the light incident surface 100, it will first contact the inclined surfaces 111, generate a first refraction, and strike the opposite inclined surface 111. Furthermore, the horizontally polarized light 22 is caused to undergo a second refraction. The second refraction is directed to the horizontally polarized light 22 toward the light incident surface 100. Due to the angular relationship of the inclined surface 111, the horizontally polarized light 22 is not directed straight toward the incident light. Instead, the light plane 100 is incident obliquely in the direction of the vertically polarized light 21, so that the horizontally polarized light 22 that has been refracted multiple times is combined with the vertically polarized light 21 and then emitted from the plane 112 together.
請再參閱圖2、3所示,本發明藉由該等斜面111令該水平偏振光線22產生折射,如此即降低該水平偏振光線22射出該光罩光學元件10所形成的眩光,因該水平偏振光線22透過多次折射,係與該垂直偏振光線21整合射出,進一步提高射出的流明,本發明之光罩光學元件有效利用光的在該格柵結構11內的折射循環,除降低眩光外,因本發明並非利用吸收該水平偏振光22來降低眩光,因此,不會減少該光源20射出的流明,反而透過折射循環增加了1成以上的流明。 Please refer to FIGS. 2 and 3 again. According to the present invention, the horizontally polarized light 22 is refracted by the inclined surfaces 111, so that the glare formed by the horizontally polarized light 22 exiting the mask optical element 10 is reduced, because the horizontal The polarized light 22 passes through multiple refractions and is emitted in combination with the vertically polarized light 21 to further increase the emitted lumens. The mask optical element of the present invention effectively utilizes the refraction cycle of light in the grid structure 11 to reduce glare. Because the present invention does not reduce the glare by absorbing the horizontally polarized light 22, the lumen emitted by the light source 20 will not be reduced, but the transmission refraction cycle will increase the lumen by more than 10%.
請參閱圖4所示,該光源20可自該光學元件10側邊射入,並透過一透明塑膠材料之導光板30,將側入之該光源20引導射入該光罩光學元件中;其中,該導光板30之透明塑膠材料可為PS、PC、PP、壓克力等。 Please refer to FIG. 4, the light source 20 can be incident from the side of the optical element 10 and guided through the light guide plate 30 of a transparent plastic material into the optical element of the mask; The transparent plastic material of the light guide plate 30 may be PS, PC, PP, acrylic, or the like.
請參閱圖5、6所示,該等格柵結構11之形狀非本發明之限制,可為多邊形或是圓錐形。 Please refer to FIGS. 5 and 6, the shape of the grid structures 11 is not limited by the present invention, and may be polygonal or conical.
請參閱圖7,該光罩光學元件10之入光面100可為平面,無該凹陷部114(請參閱圖1所示)。 Please refer to FIG. 7, the light incident surface 100 of the mask optical element 10 may be a flat surface without the recess 114 (see FIG. 1).
惟以上所述者,僅為本發明之較佳實施例而已,當不能以此限定本發明實施之範圍;故,凡依本發明申請專利範圍及發明說明書內容所作之簡單的等效變化與修飾,皆應仍屬本發明專利涵蓋之範圍內。 However, the above are only the preferred embodiments of the present invention, and the scope of implementation of the present invention cannot be limited by this; therefore, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the invention specification of the present invention , All should still fall within the scope of the invention patent.
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TW107112819A TWI661236B (en) | 2018-04-13 | 2018-04-13 | Mask optics for reducing glare |
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Citations (3)
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WO2016166203A1 (en) * | 2015-04-16 | 2016-10-20 | Zumtobel Lighting Gmbh | Optical system, and assembly for emitting light |
WO2017050929A1 (en) * | 2015-09-24 | 2017-03-30 | Regent Beleuchtungskörper Ag | Optical film and light fixture with such an optical film |
CN107013827A (en) * | 2016-12-29 | 2017-08-04 | 中山市光大光学仪器有限公司 | Anti-dazzle lighting apparatus |
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Publication number | Priority date | Publication date | Assignee | Title |
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WO2016166203A1 (en) * | 2015-04-16 | 2016-10-20 | Zumtobel Lighting Gmbh | Optical system, and assembly for emitting light |
WO2017050929A1 (en) * | 2015-09-24 | 2017-03-30 | Regent Beleuchtungskörper Ag | Optical film and light fixture with such an optical film |
CN107013827A (en) * | 2016-12-29 | 2017-08-04 | 中山市光大光学仪器有限公司 | Anti-dazzle lighting apparatus |
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