TWI484223B - An optical component for multi-angle illumination of line scanning, and a light source system using the same - Google Patents

An optical component for multi-angle illumination of line scanning, and a light source system using the same Download PDF

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Publication number
TWI484223B
TWI484223B TW102102337A TW102102337A TWI484223B TW I484223 B TWI484223 B TW I484223B TW 102102337 A TW102102337 A TW 102102337A TW 102102337 A TW102102337 A TW 102102337A TW I484223 B TWI484223 B TW I484223B
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light
dimensional pattern
transmitting element
dimension
optical component
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TW102102337A
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Chinese (zh)
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TW201430399A (en
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Guang Shiah Wang
Hui Yu Chen
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Machvision Inc
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Priority to TW102102337A priority Critical patent/TWI484223B/en
Priority to CN201310071218.1A priority patent/CN103939846B/en
Priority to JP2013062426A priority patent/JP5815587B2/en
Priority to KR1020130038274A priority patent/KR101476530B1/en
Publication of TW201430399A publication Critical patent/TW201430399A/en
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Publication of TWI484223B publication Critical patent/TWI484223B/en

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    • 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
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
    • 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)
  • Optical Elements Other Than Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Stroboscope Apparatuses (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Description

用於線掃描之多角度照明的光學組件及使用其之光源系統Optical component for multi-angle illumination of line scan and light source system using same

本發明係關於一種將光源投射之光線予以擴散的組件，更特別的是關於一種用於線掃描之多角度照明的光學組件及使用其之光源系統。The present invention relates to an assembly for diffusing light projected by a light source, and more particularly to an optical assembly for multi-angle illumination of line scans and a light source system using the same.

光源系統在自動光學檢測(AOI)上係扮演著舉足輕重的腳色。舉例來說，在液晶顯示器、半導體積體電路之晶片以及相關電路的製造過程中皆須經過精密的自動光學檢測，然而檢測中之一項重要的因素就是對檢測區之照明的提供。The light source system plays a pivotal role in automatic optical inspection (AOI). For example, precision automated optical inspection is required in the manufacture of liquid crystal displays, wafers of semiconductor integrated circuits, and related circuits. However, an important factor in the detection is the provision of illumination for the detection area.

傳統之照明裝置係單純地將光源，例如：發光二極體，對著檢測區去投射，如此不但無法將精密檢測儀器之有限空間中配置的光源作有效的利用，亦無法對檢測區提供較佳的照明亮度。The conventional lighting device simply projects a light source, such as a light-emitting diode, against the detection area, so that the light source disposed in the limited space of the precision detecting instrument cannot be effectively utilized, and the detection area cannot be provided. Good lighting brightness.

本發明之一目的在於可提供多角度之照明。It is an object of the present invention to provide multiple angle illumination.

本發明之另一目的在於降低使光源投射所需之光學元件占用的體積。Another object of the invention is to reduce the volume occupied by the optical components required to project the light source.

本發明之再一目的在於減輕使光源投射所需之光學元件的重量。Still another object of the present invention is to reduce the weight of the optical components required to project the light source.

為達上述目的及其他目的，本發明提出一種用於線掃描之多角度照明的光學組件，包含：第一透光元件，僅於一表面上形成有光線自該表面入射係被予以僅在第一維度上匯聚之立體圖案；第二透光元件，僅於一表面上形 成有相同於該第一透光元件之光線自該表面入射係被予以僅在第一維度上匯聚之立體圖案，且該第二透光元件具有該立體圖案之面係正對於該第一透光元件具有該立體圖案之面；及一光成形擴散膜層，係使入射之光線在第二維度上擴散，且位於該第一透光元件未具有該立體圖案之面上、該第二透光元件未具有該立體圖案之面上、及該第一透光元件與該第二透光元件之間且接觸於該第一透光元件及該第二透光元件，此三者位置中之其一。To achieve the above and other objects, the present invention provides an optical component for multi-angle illumination of line scan, comprising: a first light transmissive element, wherein only a surface is formed with light from the surface, and the incident is only a three-dimensional pattern that converges on one dimension; a second light-transmitting element that is shaped only on one surface a three-dimensional pattern in which the light incident from the first light-transmitting element is incident from the surface is concentrated only in the first dimension, and the second light-transmitting element has the surface of the three-dimensional pattern for the first through The light element has a surface of the three-dimensional pattern; and a light-shaping diffusion film layer diffuses the incident light in a second dimension, and is located on a surface of the first light-transmitting element that does not have the three-dimensional pattern, and the second transparent The light element does not have the surface of the three-dimensional pattern, and between the first light-transmitting element and the second light-transmitting element and is in contact with the first light-transmitting element and the second light-transmitting element. One of them.

為達上述目的及其他目的，本發明復提出一種用於投射光線至一目標區的光源系統，包含：複數光源，係朝向該目標區投射光源；及複數光學組件，每一光學組件係分別對應該等光源之其一，該等光學組件係位於該等光源與該目標區之間，其中，該光學組件係包含：第一透光元件，僅於一表面上形成有光線自該表面入射係被予以僅在第一維度上匯聚之立體圖案；第二透光元件，僅於一表面上形成有相同於該第一透光元件之光線自該表面入射係被予以僅在第一維度上匯聚之立體圖案，且該第二透光元件具有該立體圖案之面係正對於該第一透光元件具有該立體圖案之面；及一光成形擴散膜層，係使入射之光線在第二維度上擴散，且位於該第一透光元件未具有該立體圖案之面上、該第二透光元件未具有該立體圖案之面上、及該第一透光元件與該第二透光元件之間且接觸於該第一透光元件及該第二透光元件，此三者位置中之其一。To achieve the above and other objects, the present invention further provides a light source system for projecting light into a target region, comprising: a plurality of light sources projecting a light source toward the target region; and a plurality of optical components, each optical component being separately One of the light sources, the optical components are located between the light source and the target region, wherein the optical component comprises: a first light transmissive element, and light is formed on the surface from only one surface a three-dimensional pattern that is concentrated only in the first dimension; the second light-transmissive element is formed on only one surface, and the light incident from the first light-transmitting element is incident from the surface, and is concentrated only in the first dimension. a three-dimensional pattern, wherein the second light-transmitting element has a surface of the three-dimensional pattern facing the first light-transmitting element; and a light-forming diffusion film layer is configured to make the incident light in the second dimension And diffusing on the surface of the first light-transmitting element that does not have the three-dimensional pattern, the surface of the second light-transmitting element that does not have the three-dimensional pattern, and the first light-transmitting element and the second light-transmitting layer And in contact with the first light-transmissive member and said second member between the light-transmitting member, one of these three positions.

於本發明之一實施例中，該立體圖案係為自透光元件表面突起之複數凸出部，該等凸出部之形狀係選自半球體或正方棱錐。In an embodiment of the invention, the three-dimensional pattern is a plurality of protrusions protruding from the surface of the light-transmitting element, and the protrusions are shaped from a hemisphere or a square pyramid.

於本發明之一實施例中，該第一透光元件及該第二透光元件係為菲涅爾透鏡，該立體圖案係為使該第一透光元件及該第二透光元件形成菲涅爾透鏡之圖案。In one embodiment of the present invention, the first light transmissive element and the second light transmissive element are Fresnel lenses, and the three-dimensional pattern is such that the first light transmissive element and the second light transmissive element form a phenanthrene The pattern of the Ner lens.

藉此，二透光元件之具有立體圖案之面互相面對的對向配置方式將使得透光元件之重量與體積大幅降低，以及，在與光成形擴散膜層的相互搭配下，更使得光源在經過光學組件的作用而成為線光源後可於此維度上提供更大角度的照明，進而令照明光源對目標區提供高亮度的照明光。Thereby, the opposite arrangement of the faces of the two light-transmitting elements having the three-dimensional pattern facing each other will greatly reduce the weight and volume of the light-transmitting elements, and, in conjunction with the light-shaping diffusion film layer, further make the light source After becoming a line source through the action of the optical component, a larger angle of illumination can be provided in this dimension, thereby enabling the illumination source to provide high-intensity illumination to the target zone.

100‧‧‧光學組件100‧‧‧Optical components

110‧‧‧第一透光元件110‧‧‧First light transmitting element

112‧‧‧第二透光元件112‧‧‧Second light transmitting element

115a‧‧‧第一透光元件具有之立體圖案115a‧‧‧The first light transmissive element has a three-dimensional pattern

115b‧‧‧第二透光元件具有之立體圖案115b‧‧‧The second light transmissive element has a three-dimensional pattern

120‧‧‧光成形擴散膜層120‧‧‧Light forming diffusion film

200‧‧‧光源200‧‧‧Light source

300‧‧‧目標區300‧‧‧ Target area

H‧‧‧區域H‧‧‧ area

L‧‧‧光的線段Line of L‧‧‧Light

X‧‧‧軸方向X‧‧‧axis direction

Y‧‧‧軸方向Y‧‧‧ axis direction

第1圖為本發明一實施例中光學組件的示意圖。Figure 1 is a schematic illustration of an optical assembly in accordance with one embodiment of the present invention.

第2圖為本發明另一實施例中光學組件的示意圖。2 is a schematic view of an optical component in another embodiment of the present invention.

第3A圖為本發明再一實施例中光學組件之第一態樣的示意圖。3A is a schematic view showing a first aspect of an optical component in still another embodiment of the present invention.

第3B圖為本發明再一實施例中光學組件之第二態樣的示意圖。Figure 3B is a schematic view of a second aspect of the optical assembly in accordance with still another embodiment of the present invention.

第3C圖為本發明再一實施例中光學組件之第三態樣的示意圖。3C is a schematic view showing a third aspect of the optical component in still another embodiment of the present invention.

第4圖為光線僅經過菲涅爾透鏡組後之光路徑的等角視圖。Figure 4 is an isometric view of the light path after the light has passed only the Fresnel lens group.

第5圖為本發明實施例中之光線經過光學組件後之光路徑的側視圖。Figure 5 is a side elevational view of the light path of the light passing through the optical assembly in accordance with an embodiment of the present invention.

第6圖為本發明一實施例中使用光學組件之光源系統的光路徑俯視圖。Fig. 6 is a plan view showing a light path of a light source system using an optical component in an embodiment of the invention.

為充分瞭解本發明之目的、特徵及功效，茲藉由下述具體之實施例，並配合所附之圖式，對本發明做一詳細說明，說明如後：首先請參閱第1圖，係本發明一實施例中光學組件的示意圖。本發明揭露之光學組件100包含：第一透光元件110、第二透光元件112及光成形擴散膜層(Light Shaping Diffuser,LSD)120。In order to fully understand the objects, features and effects of the present invention, the present invention will be described in detail by the following specific embodiments and the accompanying drawings, which are illustrated as follows: First, refer to FIG. A schematic diagram of an optical component in an embodiment of the invention. The optical component 100 disclosed in the present invention comprises: a first light transmissive element 110, a second light transmissive element 112, and a Light Shaping Diffuser (LSD) 120.

第一透光元件110係僅有一表面上具有一立體圖案115a。該立體圖案115a之作用係為當光線自具有該立體圖案115a之表面入射時，光線係被 予以僅在單一維度上(例如第一維度)匯聚。其係可藉由對第一透光元件110之一表面形成突起部而被粗糙化來產生該立體圖案115a。立體圖案115a突起之形狀可藉由不同之造型來達成前述之「光線係被予以僅在第一維度上(如X軸上)匯聚」的功能，其係為熟悉該項技術者於了解此需求後可輕易完成者，舉例來說，半球體或正方棱錐皆可適用之，然而本發明並不以此為限。其中，第1圖係以半球體為例，第2圖係以正方棱錐為例，其皆可在單一維度上對所入射的光線進行匯聚。關於單一維度上的匯聚於後續將參考第5圖而有更詳細的說明。The first light transmissive element 110 has a three-dimensional pattern 115a on only one surface. The three-dimensional pattern 115a functions as a light when the light is incident from the surface having the three-dimensional pattern 115a. Convergence is only done on a single dimension (eg, the first dimension). The three-dimensional pattern 115a can be produced by roughening the surface of one of the first light-transmitting elements 110 to form a protrusion. The shape of the protrusion of the three-dimensional pattern 115a can be achieved by different shapes to achieve the aforementioned function of "the light system is concentrated only in the first dimension (such as on the X-axis)", which is familiar to those skilled in the art. It can be easily completed, for example, a hemisphere or a square pyramid can be applied, but the invention is not limited thereto. Among them, the first picture is a hemisphere, and the second picture is an example of a square pyramid, which can converge the incident light in a single dimension. Convergence on a single dimension will be described in more detail later with reference to Figure 5.

第二透光元件112係相同於第一透光元件110，在本發明中，其係採用特殊的配置方式而令該第一透光元件110及該第二透光元件112係恰為相反，亦即，該第二透光元件112具有該立體圖案115b之面係正對於該第一透光元件具有該立體圖案115a之面，可參考第1及2圖來視得。The second light transmissive element 112 is the same as the first light transmissive element 110. In the present invention, the first light transmissive element 110 and the second light transmissive element 112 are opposite in a special arrangement. That is, the surface of the second light-transmitting element 112 having the surface of the three-dimensional pattern 115b facing the first light-transmitting element has the surface of the three-dimensional pattern 115a, which can be seen with reference to FIGS. 1 and 2.

光成形擴散膜層120係用於使入射之光線在第二維度(如Y軸上)產生接近單一維度上的擴散現象，其餘維度上之擴散程度係不會影響使光在第一維度上成形為一線段，亦即，光線係主要在第二維度上被擴散而縱使該光成形擴散膜層120於第一維度上具有擴散現象也不會影響到本案所欲達成之第一維度上的匯聚，進而可使來自光源的光線係不會於第一維度上(如：X軸方向上)產生影響到光成形為一線段的擴散現象。The light-forming diffusion film layer 120 is used to cause the incident light to produce a diffusion phenomenon in a second dimension (such as the Y-axis) in a single dimension, and the degree of diffusion in the remaining dimensions does not affect the formation of light in the first dimension. For a line segment, that is, the light system is mainly diffused in the second dimension, and even if the light-forming diffusion film layer 120 has a diffusion phenomenon in the first dimension, it does not affect the convergence in the first dimension to be achieved in the present case. In turn, the light from the light source does not cause a diffusion phenomenon that affects the formation of light into a line segment in the first dimension (eg, in the X-axis direction).

光成形擴散膜層120例如可採用美國Luminit，LLC公司所生產之LSD系列的光成形擴散膜層。光成形擴散膜層120較佳係使用不到1mm的厚度。光成形擴散膜層120之擴散角(於本案中之定義為Y軸向方向上之擴散角)可採用60度或80度等的擴散角。舉例來說，當採用60度*1度之LSD係代表於Y軸向方向上之擴散角為60度，而於X軸向方向上之擴散角僅為1度，在 光學檢測裝置之狹小空間中，該1度的擴散角係不會使光成形為一線段的程度受到影響。關於僅在第二維度上的擴散係於後續將參考第6圖而有更詳細的說明。光成形擴散膜層120係可位於下列三種位置的其中一種：1、該第一透光元件110未具有該立體圖案115a之面上；2、該第二透光元件112未具有該立體圖案115b之面上；3、該第一透光元件110與該第二透光元件112之間且接觸於該第一透光元件110及該第二透光元件112。For the light-forming diffusion film layer 120, for example, a light-formed diffusion film layer of the LSD series produced by Luminit, LLC, USA can be used. The light-formed diffusion film layer 120 is preferably used in a thickness of less than 1 mm. The diffusion angle of the light-forming diffusion film layer 120 (defined in the present invention as the diffusion angle in the Y-axis direction) may be a diffusion angle of 60 degrees or 80 degrees or the like. For example, when the 60 degree*1 degree LSD system is used, the diffusion angle in the Y-axis direction is 60 degrees, and the diffusion angle in the X-axis direction is only 1 degree. In the narrow space of the optical detecting device, the 1 degree spread angle does not affect the extent to which light is formed into a line segment. The diffusion only in the second dimension will be described in more detail later with reference to Figure 6. The light-shaping diffusion film layer 120 can be located at one of the following three positions: 1. The first light-transmitting element 110 does not have the surface of the three-dimensional pattern 115a; 2. The second light-transmitting element 112 does not have the three-dimensional pattern 115b. 3, the first light transmissive element 110 and the second light transmissive element 112 are in contact with the first light transmissive element 110 and the second light transmissive element 112.

較佳地，光學組件100係僅由該第一透光元件110、該第二透光元件112及該光成形擴散膜層120所構成。亦即，當該光成形擴散膜層120未位於該第一透光元件110及該第二透光元件112的中間時，該第一透光元件110及該第二透光元件112係直接接觸在一起(可參考第3A~3C圖)。Preferably, the optical component 100 is composed only of the first light transmitting component 110, the second light transmitting component 112, and the light shaping diffusion film layer 120. That is, when the light-forming diffusion film layer 120 is not located between the first light-transmitting element 110 and the second light-transmitting element 112, the first light-transmitting element 110 and the second light-transmitting element 112 are in direct contact. Together (refer to Figure 3A~3C).

接著請參閱第3A~3C圖，其係為本發明再一實施例中光學組件之第一至第三態樣的示意圖。於本實施例中，該第一透光元件110及該第二透光元件112之一表面形成突起部而被粗糙化來產生的該立體圖案115a、115b係為形成菲涅爾透鏡(Fresnel Lens)之圖案，亦即，該第一透光元件110及該第二透光元件112係為菲涅爾透鏡，例如：藉由二線性菲涅爾透鏡組成的透鏡組，於線掃描的一些應用中較佳係採用焦距為0.25~6英吋的菲涅爾透鏡。第3A圖係光成形擴散膜層120位於該第一透光元件110未具有該立體圖案115a之面上的示意圖；第3B圖係光成形擴散膜層120位於該第二透光元件112未具有該立體圖案115b之面上的示意圖；第3C圖係光成形擴散膜層120位於該第一透光元件110與該第二透光元件112之間且接觸於該第一透光元件110及該第二透光元件112的示意圖。Next, please refer to FIGS. 3A-3C, which are schematic diagrams showing first to third aspects of the optical component in still another embodiment of the present invention. In the present embodiment, the three-dimensional patterns 115a, 115b which are formed by roughening the surface of one of the first light-transmitting element 110 and the second light-transmitting element 112 are formed to form a Fresnel lens (Fresnel Lens) The pattern of the first light transmitting element 110 and the second light transmitting element 112 is a Fresnel lens, for example, a lens group composed of a two-linear Fresnel lens, and some applications for line scanning The preferred method uses a Fresnel lens with a focal length of 0.25 to 6 inches. 3A is a schematic view of the light-shaping diffusion film layer 120 on the surface of the first light-transmitting element 110 that does not have the three-dimensional pattern 115a; FIG. 3B is a view that the light-shaping diffusion film layer 120 is located on the second light-transmitting element 112. A schematic view on the surface of the three-dimensional pattern 115b; a third light-patterned diffusion film layer 120 is located between the first light-transmitting element 110 and the second light-transmitting element 112 and is in contact with the first light-transmitting element 110 and the A schematic view of the second light transmissive element 112.

本發明之光學組件藉由僅於第一維度上匯聚的二個特殊透光元 件的對向安排，以及於第二維度上擴散之光成形擴散膜層的配置，係可使通過光學組件之光線匯聚成一條較長的亮線，可供光學檢測裝置上之掃描光的使用。The optical component of the present invention is condensed by two special light-transmitting elements only in the first dimension The opposite arrangement of the pieces, and the arrangement of the light-forming diffusing film layer diffused in the second dimension, allows the light passing through the optical component to be concentrated into a long bright line for use by the scanning light on the optical detecting device .

接著請參閱第4圖，係光線僅經過菲涅爾透鏡組後之光路徑的等角視圖。如圖所示，光源200發散出的光線經過菲涅爾透鏡組(即二互相對向配置的菲涅爾透鏡)後，在第一維度(X軸)的方向上會產生匯聚的現象，而在第二維度(Y軸)的方向上則為幾乎達到直進無擴散的現象，進而所匯聚成之光的線段L就會較為短小。Next, please refer to Fig. 4, which is an isometric view of the light path after the light passes only the Fresnel lens group. As shown in the figure, after the light emitted by the light source 200 passes through the Fresnel lens group (ie, two Fresnel lenses arranged opposite each other), a convergence phenomenon occurs in the direction of the first dimension (X-axis), and In the direction of the second dimension (Y-axis), there is almost a phenomenon of straight forward and no diffusion, and the line segment L of the concentrated light is relatively short.

接著請參閱第5圖，係本發明實施例中之光線經過光學組件後之光路徑的側視圖。如圖所示，光源200發散出的光線經過本發明之光學組件100後，一樣在第一維度(X軸)的方向上會產生匯聚的現象。Next, please refer to FIG. 5, which is a side view of the light path of the light in the embodiment of the present invention after passing through the optical component. As shown, the light emitted by the light source 200, after passing through the optical assembly 100 of the present invention, causes a converging phenomenon in the direction of the first dimension (X-axis).

接著請參閱第6圖，係本發明一實施例中使用光學組件之光源系統的光路徑俯視圖。光源系統係用於投射光線至目標區300所在的範圍。光源系統中係採用複數光源200(第6圖係以3個LED光源作為示例)，每一光源200發散出的光線經過本發明之光學組件100後，除了前述第5圖中所示之在第一維度(X軸)的方向上匯聚外，在第二維度(Y軸)的方向上可進一步產生擴散的現象，藉由每一光源300對應之光學組件100所組成之一整片的光擴散裝置(係由複數個光學組件所組成)來使目標區300之中間部位的受照明強度有效增加，其乃因每一光源之光線經光學組件100後在第二維度上大幅增加了照明角度，而可對相鄰光源在目標區300上投射的照明區貢獻更多的照明角度，例如第6圖中所示的H區域。Next, please refer to FIG. 6, which is a plan view of a light path of a light source system using an optical component in an embodiment of the present invention. The light source system is used to project light to a range in which the target zone 300 is located. In the light source system, a plurality of light sources 200 are used (the sixth figure is exemplified by three LED light sources), and the light emitted by each light source 200 passes through the optical component 100 of the present invention, except that the first image shown in FIG. 5 is In the direction of the one dimension (X-axis), the phenomenon of diffusion may be further generated in the direction of the second dimension (Y-axis), and the light diffusion of one piece of the optical component 100 corresponding to each light source 300 is formed. The device (consisting of a plurality of optical components) effectively increases the illumination intensity of the intermediate portion of the target zone 300 because the light of each source substantially increases the illumination angle in the second dimension after passing through the optical component 100. Instead, the illumination area projected by the adjacent light source on the target zone 300 can contribute more illumination angles, such as the H zone shown in FIG.

綜上所述，本發明藉著二透光元件之具有立體圖案之面互相面對的對向配置方式來使第一維度上的光線被匯聚，並藉由與光成形擴散膜層的相 互搭配下，更使得第二維度上的光線之照射角度被擴大，進而對目標區提供較多角度的照明光，此外，採用二透光元件相對向的設置更使得透光元件之重量與體積大幅降低，減少在光學檢測裝置之有限空間中占用的體積。In summary, the present invention allows the light in the first dimension to be concentrated by the opposite arrangement of the faces of the two light-transmitting elements having the three-dimensional pattern facing each other, and by the phase of the light-forming diffusion film layer. Under the mutual matching, the illumination angle of the light in the second dimension is enlarged, thereby providing more angles of illumination light to the target area, and further, the relative arrangement of the two transparent elements makes the weight and volume of the transparent element more. Significantly reduced, reducing the volume occupied in the limited space of the optical detection device.

本發明在上文中已以較佳實施例揭露，然熟習本項技術者應理解的是，該實施例僅用於描繪本發明，而不應解讀為限制本發明之範圍。應注意的是，舉凡與該實施例等效之變化與置換，均應設為涵蓋於本發明之範疇內。因此，本發明之保護範圍當以申請專利範圍所界定者為準。The invention has been described above in terms of the preferred embodiments, and it should be understood by those skilled in the art that the present invention is not intended to limit the scope of the invention. It should be noted that variations and permutations equivalent to those of the embodiments are intended to be included within the scope of the present invention. Therefore, the scope of protection of the present invention is defined by the scope of the patent application.

100‧‧‧光學組件100‧‧‧Optical components

110‧‧‧第一透光元件110‧‧‧First light transmitting element

112‧‧‧第二透光元件112‧‧‧Second light transmitting element

115a‧‧‧第一透光元件具有之立體圖案115a‧‧‧The first light transmissive element has a three-dimensional pattern

115b‧‧‧第二透光元件具有之立體圖案115b‧‧‧The second light transmissive element has a three-dimensional pattern

120‧‧‧光成形擴散膜層120‧‧‧Light forming diffusion film

Claims (6)

一種用於線掃描之多角度照明的光學組件，包含：第一透光元件，僅於一表面上形成有光線自該表面入射係被予以僅在第一維度上匯聚之立體圖案；第二透光元件，僅於一表面上形成有相同於該第一透光元件之光線自該表面入射係被予以僅在第一維度上匯聚之立體圖案，且該第二透光元件具有該立體圖案之面係正對於該第一透光元件具有該立體圖案之面；及一光成形擴散膜層，係使入射之光線在第二維度上擴散而形成線性掃描光，且位於該第二透光元件未具有該立體圖案之面上，其中，入射之光線係依序通過該第一透光元件、該第二透光元件及該光成形擴散膜層。 An optical component for multi-angle illumination of line scan, comprising: a first light transmissive element, wherein only a surface is formed with a three-dimensional pattern in which light is incident from the surface and is concentrated only in the first dimension; The optical element has a three-dimensional pattern in which only light incident on the surface of the first light-transmitting element is concentrated from the surface and is concentrated only in the first dimension, and the second light-transmitting element has the three-dimensional pattern. The surface of the first light-transmitting element has a surface of the three-dimensional pattern; and a light-shaping diffusion film layer diffuses incident light rays in a second dimension to form linear scanning light, and is located at the second light-transmitting element The surface that does not have the three-dimensional pattern, wherein the incident light rays sequentially pass through the first light transmitting element, the second light transmitting element, and the light forming diffusion film layer. 如申請專利範圍第1項所述之光學組件，其中該立體圖案係為自透光元件表面突起之複數凸出部，該等凸出部之形狀係選自半球體或正方棱錐。 The optical component according to claim 1, wherein the three-dimensional pattern is a plurality of protrusions protruding from a surface of the light-transmitting element, and the protrusions are selected from a hemisphere or a square pyramid. 如申請專利範圍第1項所述之光學組件，其中該第一透光元件及該第二透光元件係為菲涅爾透鏡，該立體圖案係為使該第一透光元件及該第二透光元件形成菲涅爾透鏡之圖案。 The optical component of claim 1, wherein the first light transmissive element and the second light transmissive element are Fresnel lenses, the three-dimensional pattern is such that the first light transmissive element and the second The light transmissive element forms a pattern of Fresnel lenses. 一種光源系統，用於投射光線至一目標區，包含：複數光源，係朝向該目標區投射光源；及複數光學組件，每一光學組件係分別對應該等光源之其一，該等光學組件係位於該等光源與該目標區之間，該光學組件包含：第一透光元件，僅於一表面上形成有光線自該表面入射係被予以僅在第一維度上匯聚之立體圖案； 第二透光元件，僅於一表面上形成有相同於該第一透光元件之光線自該表面入射係被予以僅在第一維度上匯聚之立體圖案，且該第二透光元件具有該立體圖案之面係正對於該第一透光元件具有該立體圖案之面；及一光成形擴散膜層，係將入射之光線予以在第二維度上擴散而形成線性掃描光，且位於該第二透光元件未具有該立體圖案之面上，其中，入射之光線係依序通過該第一透光元件、該第二透光元件及該光成形擴散膜層。 A light source system for projecting light to a target area, comprising: a plurality of light sources projecting a light source toward the target area; and a plurality of optical components, each of the optical components respectively corresponding to one of the light sources, the optical components Located between the light source and the target area, the optical component comprises: a first light transmissive element, a three-dimensional pattern formed on a surface from which light is incident from the surface only in a first dimension; The second light transmissive element is formed on only one surface with a stereoscopic pattern in which the light incident from the first light transmissive element is concentrated from the surface and is concentrated only in the first dimension, and the second light transmissive element has the same The surface of the three-dimensional pattern is opposite to the surface of the first light-transmitting element; and a light-shaping diffusion film layer diffuses the incident light in a second dimension to form linear scanning light, and is located at the first The two light transmissive elements do not have the surface of the three-dimensional pattern, wherein the incident light rays sequentially pass through the first light transmitting element, the second light transmitting element, and the light forming diffusion film layer. 如申請專利範圍第4項所述之光源系統，其中，每一光學組件中之該立體圖案係為自透光元件表面突起之複數凸出部，該等凸出部之形狀係選自半球體或正方棱錐。 The light source system of claim 4, wherein the three-dimensional pattern in each optical component is a plurality of protrusions protruding from a surface of the light-transmitting element, and the shape of the protrusions is selected from a hemisphere Or square pyramids. 如申請專利範圍第4項所述之光源系統，其中，每一光學組件中之該第一透光元件及該第二透光元件係為菲涅爾透鏡，該立體圖案係為使該第一透光元件及該第二透光元件形成菲涅爾透鏡之圖案。The light source system of claim 4, wherein the first light transmitting element and the second light transmitting element in each optical component are Fresnel lenses, and the three-dimensional pattern is such that the first The light transmissive element and the second light transmissive element form a pattern of Fresnel lenses.
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