TWI733634B - Condenser lens and lamp using the same - Google Patents
Condenser lens and lamp using the same Download PDFInfo
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- TWI733634B TWI733634B TW109144286A TW109144286A TWI733634B TW I733634 B TWI733634 B TW I733634B TW 109144286 A TW109144286 A TW 109144286A TW 109144286 A TW109144286 A TW 109144286A TW I733634 B TWI733634 B TW I733634B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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Abstract
Description
本揭露是有關於一種透鏡及應用其之燈具,且特別是有關於一種聚光透鏡及應用其之燈具。 This disclosure relates to a lens and a lamp using the same, and more particularly to a condenser lens and a lamp using the same.
一般燈具包含光源模組及聚光透鏡,光源發出光線透過聚光透鏡出光,以照亮目標物。然而,當燈具配置在大面積之場域時,其設置位置通常在場地的周邊,此導致燈具的發光照射場域的中間區域的照射亮度減弱。因此,本技術領域業者認為有必要提出一種能改善前述習知問題的技術。 Generally, a lamp includes a light source module and a condenser lens, and the light emitted by the light source passes through the condenser lens to emit light to illuminate the target. However, when the lamps are arranged in a large-area field, their installation positions are usually on the periphery of the field, which causes the illumination brightness of the middle area of the light-emitting field of the lamps to be weakened. Therefore, the industry in this technical field believes that it is necessary to propose a technology that can improve the aforementioned conventional problems.
本揭露係有關於一種聚光透鏡及應用其之燈具,可改善前述習知問題。 This disclosure relates to a condensing lens and a lamp using the same, which can improve the aforementioned conventional problems.
本揭露一實施例提出一種聚光透鏡。聚光透鏡包括一頂面、一入光面及一出光面。出光面延伸於頂面與入光面之間。入光面的面積大於頂面的面積,入光面與頂面之間具有一高度H,入光面具有一第一寬度W1,頂面具有一第二寬度W2,第一寬度W1、第二寬度W2及高度H滿足下式:2W1/W28/3以及2/3H/W22。 An embodiment of the present disclosure provides a condenser lens. The condensing lens includes a top surface, a light-incident surface and a light-emitting surface. The light-emitting surface extends between the top surface and the light-incident surface. The area of the light incident surface is larger than the area of the top surface. There is a height H between the light incident surface and the top surface. The light incident surface has a first width W1, the top surface has a second width W2, the first width W1, and the second width. The width W2 and height H satisfy the following formula: 2 W1/W2 8/3 and 2/3 H/W2 2.
本揭露另一實施例提出一種燈具。燈具包括複數個聚光透鏡及一光源模組。各聚光透鏡包括一頂面、一入光面及一出光面。 出光面延伸於頂面與入光面之間。入光面的面積大於頂面的面積,入光面與頂面之間具有一高度H,入光面具有一第一寬度W1,頂面具有一第二寬度W2,第一寬度W1、第二寬度W2及高度H滿足下式:2W1/W28/3以及2/3H/W22。光源模組相對此些聚光透鏡之此些入光面配置。 Another embodiment of the present disclosure provides a lamp. The lamp includes a plurality of condenser lenses and a light source module. Each condensing lens includes a top surface, a light-incident surface and a light-emitting surface. The light-emitting surface extends between the top surface and the light-incident surface. The area of the light incident surface is larger than the area of the top surface. There is a height H between the light incident surface and the top surface. The light incident surface has a first width W1, the top surface has a second width W2, the first width W1, and the second width. The width W2 and height H satisfy the following formula: 2 W1/W2 8/3 and 2/3 H/W2 2. The light source module is arranged relative to the light incident surfaces of the condenser lenses.
為了對本揭露之上述及其他方面有更佳的瞭解,下文特舉實施例,並配合所附圖式詳細說明如下: In order to have a better understanding of the above and other aspects of the present disclosure, the following examples are specially cited, and the accompanying drawings are described in detail as follows:
100:燈具 100: lamps
100e1,100e2:邊長 100e1, 100e2: side length
110:聚光模組 110: Condenser module
111:聚光透鏡 111: Condenser lens
111i:入光面 111i: Glossy surface
111e:出光面 111e: Glossy surface
111u:頂面 111u: top surface
111r1,111r2:導圓角 111r1, 111r2: round corner
120:光源模組 120: light source module
121:第一光源 121: The first light source
121A:第一光源組 121A: The first light source group
122:第二光源 122: second light source
122A:第二光源組 122A: The second light source group
130:控制模組 130: control module
131:第一脈寬調製訊號產生器 131: The first pulse width modulation signal generator
132:第二脈寬調製訊號產生器 132: The second pulse width modulation signal generator
133:時序訊號產生器 133: Timing signal generator
134:第一開關 134: First switch
134G,135G,136G:閘極 134G, 135G, 136G: gate
134S,135S,136S:源極 134S, 135S, 136S: source
134D,135D,136D:汲極 134D, 135D, 136D: drain
135:第二開關 135: Second switch
136:時序開關 136: timing switch
A1:夾角 A1: included angle
D1:第一工作週期 D1: The first working cycle
D2:第二工作週期 D2: Second working cycle
H:高度 H: height
I:電流 I: current
L,L1,L2:光線 L, L1, L2: light
P1:第一脈寬調製訊號 P1: The first pulse width modulation signal
P1’:第一輸出控制訊號 P1’: The first output control signal
P2:第二脈寬調製訊號 P2: The second pulse width modulation signal
P2’:第二輸出控制訊號 P2’: The second output control signal
P3:時序訊號 P3: Timing signal
T1,T2:週期 T1, T2: cycle
T11,T21,P31:導通區 T11, T21, P31: conduction zone
T12,T22,P32:關閉區 T12, T22, P32: closed zone
W1:第一寬度 W1: first width
W2:第二寬度 W2: second width
θ:發光角度 θ: luminous angle
第1圖繪示依照本揭露一實施例之燈具的示意圖。 FIG. 1 is a schematic diagram of a lamp according to an embodiment of the disclosure.
第2A圖繪示第1圖之燈具的聚光透鏡的立體圖。 Figure 2A is a perspective view of the condenser lens of the lamp shown in Figure 1.
第2B圖繪示第2A圖之聚光透鏡的側視圖。 Figure 2B shows a side view of the condenser lens of Figure 2A.
第3圖繪示第1圖之聚光模組之數個聚光透鏡的分布圖。 FIG. 3 is a diagram showing the distribution of several condenser lenses of the condenser module of FIG. 1. FIG.
第4圖繪示第1圖之光源模組及控制模組的功能方塊圖。 Fig. 4 shows a functional block diagram of the light source module and the control module of Fig. 1.
第5圖繪示第4圖第一脈寬調製訊號、第二脈寬調製訊號及時序訊號的示意圖。 FIG. 5 is a schematic diagram of the first pulse width modulation signal, the second pulse width modulation signal, and the timing signal in FIG. 4. FIG.
請參照第1~2B圖,第1圖繪示依照本揭露一實施例之燈具100的示意圖,第2A圖繪示第1圖之燈具100的聚光透鏡111的立體圖,而第
2B圖繪示第2A圖之聚光透鏡111的側視圖。燈具100可使用於大面積之場域,例如是農場、林場、球場等,然本揭露實施例不受此限。
Please refer to FIGS. 1 to 2B. FIG. 1 is a schematic diagram of a
如第1~2B圖所示,燈具100包括聚光模組110、光源模組120及控制模組130。聚光模組110包括數個聚光透鏡111。各聚光透鏡111包括頂面111u、入光面111i及出光面111e,出光面111e延伸於頂面111u與入光面111i之間,入光面111i的面積大於頂面111u的面積,入光面111i與頂面111u之間具有高度H,入光面111i具有第一寬度W1,頂面111u具有第二寬度W2。光源模組120相對此些聚光透鏡111之此些入光面111i配置,使所發出光線L透過此些聚光透鏡111出光。在本實施例中,出光面111e例如是聚光透鏡111的周緣面。
As shown in FIGS. 1 to 2B, the
第一寬度W1、第二寬度W2及高度H滿足下式(1)及(2)。式(1)及(2)的數值範圍包含端點值,然亦可不包含端點值。 The first width W1, the second width W2, and the height H satisfy the following equations (1) and (2). The numerical ranges of formulas (1) and (2) include endpoint values, but they may not include endpoint values.
由於第一寬度W1、第二寬度W2及高度H的特定尺寸關係,使通過聚光透鏡111的光線轉變成一長的有效照射距離之照明光。依據模擬結果,以100平方米之多邊形場域(如,正方形場域)且所需有效照度需大於20勒克斯(lux)為設定條件來說,若是採用習知發光角度為120度之燈具,此場域的中央(如,距離50公尺)處的照明只有7 lux,其有效照射距離約為30公尺,以採用本揭露實施例之發光角度為60度之燈具100來說,此場域之中央(如距離50公尺)處的照明可達26 lux,其有效照射距離可達50公尺,且光照度分佈較習知發光角度為
120度之燈具均勻。相較於習知燈具,本揭露實施例之燈具100的有效照射距離更遠且照明亮度更亮。此外,綜上可知,本揭露實施例之燈具100提供一聚光場型的照明。
Due to the specific size relationship of the first width W1, the second width W2, and the height H, the light passing through the
如第2A圖所示,聚光透鏡111例如是呈錐狀。入光面111i與頂面111u各為一正方形且相互平行。舉例來說,入光面111i例如是正方形,其四個角可為導圓角111r1,而頂面111u例如是平面,形狀例如是正方形,其四個角可為導圓角111r2。在一實施例中,導圓角111r1的半徑例如是介於0.2毫米(mm)與0.7mm之間,如0.3mm、0.4mm、0.5mm或0.6mm,而導圓角111r2的半徑例如是介於0.2mm與0.7mm之間,如0.3mm、0.4mm、0.5mm或0.6mm。藉由改變第一寬度W1、第二寬度W2與高度H中至少一者,可調整出光面111e的斜率,進而改變發光角度θ。如第2B圖所示,聚光透鏡111具有發光角度θ,發光角度θ介於55度~85度之間(可包含或不包含端點值)。發光角度θ、第一寬度W1、第二寬度W2及高度H的關係繪示於下表一。
As shown in FIG. 2A, the
表1只是本揭露實施例之發光角度θ、第一寬度W1、第二寬度W2之組合的一些例子,本揭露實施例之發光角度θ、第一寬度W1、第二寬度W2的其它對應關係不受表1所限。 Table 1 is only some examples of the combinations of the light-emitting angle θ, the first width W1 and the second width W2 in the embodiment of the present disclosure. Other corresponding relationships among the light-emitting angle θ, the first width W1 and the second width W2 of the embodiment of the present disclosure are not Subject to Table 1.
請參照第3圖,其繪示第1圖之聚光模組10之數個聚光透鏡111的分布圖。數個聚光透鏡111可傾斜度排列。例如,聚光透鏡111沿第一寬度W1的方向與X軸向之間的夾角A1例如是45度,然亦可小於或大於45度。然夾角A1不受限於45度,也可以小於或大於45度。透過此排列方式,本揭露實施例之數個聚光透鏡111的排列方式可提供一矩形出光,特別符合田間補光區域需求,能提升光源利用率。如第3圖所示,圖示的X軸例如是平行於燈具100的一邊長100e1,而Y軸例如是平行於燈具100的一相鄰邊長100e2。
Please refer to FIG. 3, which shows a distribution diagram of
控制模組130可對光源模組120進行光譜控制(調光)及/或時序控制,以下舉例說明。
The
請參照第4圖,其繪示第1圖之光源模組120及控制模組130的功能方塊圖。光源模組120包括數個第一光源121及數個第二光源122。第一光源121及/或第二光源122例如是發光二極體(Light-emitting diode,LED)或其它種類的發光件。此些第一光源121用以發出具有第一光色之第一光線L1,此些第二光源122用以發出具有第二光色之第二光線L2,其中第一光色與第二光色相異。數個第一光源121之至少二者可發出相同或相異光色的光,第一光線L1是所有第一光源121之發光的混光。數個第二光源122之至少二者可發出相同或相異光色的光,第二光線L2是所有第二光源122之發光的混光。在
實施例中,第一光源121的一者或一些例如是可發出波長介於600奈米~700奈米之間的紅光且/或第一光源121的另一者或另一些例如是可發出色溫介於2700K~4000K之間或介於2700K~3500K之間的暖白光。在實施例中,第二光源122的一者或一些例如是可發出波長介於450奈米~475奈米之間的藍光且/或第二光源122的另一者或另一些例如是可發出色溫介於4000K~7000K之間或介於6000K~7000K之間的冷白光。
Please refer to FIG. 4, which shows a functional block diagram of the
第1圖之光線L為第一光線L1與第二光線L2的混光。第一光色及/或第二光色例如是植物於不同生長期所需的光色。本揭露實施例不限制第一光色及/或第二光色的光色,其只要是包含可見光即可。 The light L in Figure 1 is a mixed light of the first light L1 and the second light L2. The first light color and/or the second light color are, for example, light colors required by plants in different growth periods. The embodiments of the present disclosure do not limit the light colors of the first light color and/or the second light color, as long as they include visible light.
如第4圖所示,在本實施例中,數個第一光源121可串聯成一第一光源組121A,而數個第二光源122可串聯成一第二光源組122A,光源模組120可包含至少一第一光源組121A及至少一第二光源組122A,其中所有的第一光源組121A可並聯至第一開關134,而所有的第二光源組122A可並聯至第二開關135。各第一光源組121A可發出相同光色(第一光色)之光線,且各第二光源組122A可發出相同光色(第二光色)之光線。在排列上,第一光源組121A及第二光源組122A可交錯排列。例如,相鄰二光源組分別是第一光源組121A及第二光源組122A。或者,數個第一光源組121A連續並排,而數個第二光源組122A連續並排。本揭露實施例不限定第一光源組121A及/或第二光源組122A的排列方式及/或數量等。
As shown in Figure 4, in this embodiment, a plurality of first
如第4圖所示,控制模組130包括第一脈寬調製訊號產生器131、第二脈寬調製訊號產生器132、時序訊號產生器133、第一開關134、第二開關135及時序開關136。第一脈寬調製訊號產生器131、第二脈寬調製訊號產生器132與時序訊號產生器133中至少二者可整合成單一元件。或者,第一脈寬調製訊號產生器131、第二脈寬調製訊號產生器132與時序訊號產生器133中至少一者可整合至一控制器(controller)。第一脈寬調製訊號產生器131、第二脈寬調製訊號產生器132及/或時序訊號產生器133可以是採用半導體製程所形成的實體電路(circuit)。
As shown in Figure 4, the
在實施例中,耦接光源的開關數量與光色種類數相同。
以本實施例來說,光色種類為二種(第一光色及第二光色),則開關的數量也為二個(第一開關134及第二開關135),以個別控制不同光色的光源組的發光模式。此外,本揭露實施例不限定開關及發出不同光色之光源組的數量。例如,發出不同光色之光源組可以是三種、四種或更多,則開關數量為對應的三個、四個或更多,以個別控制不同光色的光源組的發光模式。
In an embodiment, the number of switches coupled to the light source is the same as the number of light color types.
In this embodiment, there are two types of light colors (the first light color and the second light color), and the number of switches is also two (the
第一脈寬調製訊號產生器131用以產生第一脈寬調製(Pulse Width Modulation,PWM)訊號P1且輸出第一脈寬調製訊號P1至第一開關134,第二脈寬調製訊號產生器132用以產生第二脈寬調製訊號P2且輸出第二脈寬調製訊號P2至第二開關135,而時序訊號產生器133用以產生時序訊號P3且輸出時序訊號P3至時序開關136。
The first pulse width
第一開關134耦接第一脈寬調製訊號P1與此些第一光源121,使第一脈寬調製訊號P1可透過第一開關134提供給此些第一光源121。在本實施例中,第一開關134耦接第一脈寬調製訊號產生器131與所有第一光源組121A,使第一脈寬調製訊號產生器131所產生的第一脈寬調製訊號P1可透過第一開關134提供給所有第一光源121。第二開關135耦接第二脈寬調製訊號P2與此些第二光源122,使第二脈寬調製訊號P2可透過第二開關13提供給此些第二光源122。在本實施例中,第二開關135耦接第二脈寬調製訊號產生器132與所有第二光源組122A,使第二脈寬調製訊號產生器132所產生的第二脈寬調製訊號P2可透過第二開關135提供給所有第二光源122。時序開關136耦接第一開關134、第二開關135與時序訊號P3,使時序訊號P3可透過時序開關136提供給第一開關134及第二開關135。在本實施例中,時序開關136耦接第一開關134、第二開關135與時序訊號產生器133,使時序訊號產生器133所產生的時序訊號P3可透過時序開關136提供給第一開關134、第二開關135。
The
在本實施例中,第一開關134、第二開關135及/或時序開關136例如是金屬-氧化物-半導體場效電晶體(Metal Oxide Semiconductor Field Effect Transistor,MOSFET)。例如,第一開關134、第二開關135及時序開關136例如是N-MOSFET,然本揭露實施例不受此限。第一開關134包括閘極134G、汲極134D及源極134S,第二開關135包括閘極135G、汲極135D及源極135S,而時序開關136包括閘極136G、汲極136D及源極136S。以連接關係來說,第一開關134
之閘極134G耦接於第一脈寬調製訊號產生器131,第一開關134之汲極134D耦接於所有第一光源組121A,而第一開關134之源極134S耦接於時序開關136之汲極136D。第二開關135之閘極135G耦接於第二脈寬調製訊號產生器132,第二開關135之汲極135D耦接於所有第二光源組122A,而第二開關135之源極135S耦接於時序開關136之汲極136D。時序開關136之閘極136G耦接於時序訊號產生器133,時序開關136之汲極136D耦接於第一開關134之源極134S及第二開關135之源極135S,而時序開關136之源極136S耦接於一接地電位。
In this embodiment, the
請參照第5圖,其繪示第4圖第一脈寬調製訊號P1、第二脈寬調製訊號P2及時序訊號P3的示意圖。第一脈寬調製訊號P1可控制第一光源121發出或不發出第一光線L1。如第5圖所示,第一脈寬調製訊號P1具有一第一工作週期(Duty Ratio)D1,詳言之,第一脈寬調製訊號P1包括數個週期T1,週期T1包含導通(ON)區T11及關閉(OFF)區T12,第一工作週期D1定義為導通區T11占週期T1的比例。第一脈寬調製訊號P1之導通區T11可控制第一光源121發出第一光線L1,而關閉區T12控制第一開關134關閉,使第一光源121不發光。相似地,第二脈寬調製訊號P2可控制第二光源122發出或不發出第二光線L2。如第5圖所示,第二脈寬調製訊號P2具有第二工作週期D2。詳言之,第二脈寬調製訊號P2包括數個週期T2,週期T2包含導通區T21及關閉區T22,第二工作週期D2定義為導通區T21占週期T2的比例。第二脈寬調製訊號P2之導通區T21可控制第二光源122發出第二光線L2,而關閉區T22控制第二開關135關閉,使第二光源122不發光。本文之「導
通區」例如是訊號之高位準區,而「關閉區」例如是訊號之低位準區,如,0。
Please refer to FIG. 5, which shows a schematic diagram of the first pulse width modulation signal P1, the second pulse width modulation signal P2, and the timing signal P3 in FIG. 4. The first pulse width modulation signal P1 can control the first
如第5圖所示,在本實施例中,在相同時段內,第一脈寬調製訊號P1之導通區T11可完全對應或重疊於第二脈寬調製訊號P2之關閉區T22,且第一脈寬調製訊號P1之關閉區T12可完全對應或重疊於第二脈寬調製訊號P2之導通區T21。如此,當第一脈寬調製訊號P1之導通區T11控制第一光源121發光時,電流I可全部提供給第一光源121(由於在相同時段,第二脈寬調製訊號P2之關閉區T22控制第二開關135關閉,因此電流迴路不會通過第二光源122),且當第二脈寬調製訊號P2之導通區T21控制第二光源122發光時,電流I可全部提供給第二光源122(由於在相同時段,第一脈寬調製訊號P1之關閉區T12控制第一開關134關閉,因此電流迴路不會通過第一光源121)。在一實施例中,電流I可以是恆定電流。
As shown in Figure 5, in this embodiment, in the same time period, the conduction area T11 of the first pulse width modulation signal P1 can completely correspond to or overlap the off area T22 of the second pulse width modulation signal P2, and the first The off area T12 of the pulse width modulation signal P1 can completely correspond to or overlap the conduction area T21 of the second pulse width modulation signal P2. In this way, when the conduction area T11 of the first pulse width modulation signal P1 controls the first
在另一實施例中,在相同時段內,第一脈寬調製訊號P1之導通區T11與第二脈寬調製訊號P2之導通區T21也可部分重疊,且第一脈寬調製訊號P1之關閉區T12與第二脈寬調製訊號P2之關閉區T22也可部分重疊。在導通區重疊的時段中,第一光源121與第二光源122分享或共用電流I。
In another embodiment, in the same time period, the conduction area T11 of the first pulse width modulation signal P1 and the conduction area T21 of the second pulse width modulation signal P2 may also partially overlap, and the first pulse width modulation signal P1 is turned off The area T12 and the off area T22 of the second pulse width modulation signal P2 may also partially overlap. In the period when the conduction regions overlap, the first
可藉由控制第一脈寬調製訊號P1之第一工作週期D1及/或第二脈寬調製訊號P2之第二工作週期D2,調整光線L(繪示於第1圖)的光譜。第一工作週期D1可介於15%~75%之間,而第二工作週期D2可介於25%~85%之間。例如,當第一工作週期D1為75%,而第二
工作週期D2為25%(第一種光譜控制)時,所有第一光線L1的第一光強與所有第二光線L2的第二光強的比例可介於2:1,此調光模式的紅光占比較高。又例如,第一工作週期D1為40%,而第二工作週期D2為60%(第二種光譜控制)時,所有第一光線L1的第一光強與所有第二光線L2的第二光強的比例可介於1:1,此調光模式的紅光與藍光比例大致相等。再例如,第一工作週期D1為15%,而第二工作週期D2為85%(第三種光譜控制)時,所有第一光線L1的第一光強與所有第二光線L2的第二光強的比例可介於0.3:1,此調光模式的藍光占比較高。燈具100可依據植物不同的生長期,透過控制第一脈寬調製訊號P1之第一工作週期D1及/或第二脈寬調製訊號P2之第二工作週期D2,調整燈具100發出適於植物生長的照明。即,本揭露實施例之燈具100可提供一調光照明功能。前述三種光譜控制可符合大多數植物之生長需求,而實際光譜控制可依不同植物種類及期各生長階段做調變。
The spectrum of the light L (shown in Figure 1) can be adjusted by controlling the first duty cycle D1 of the first pulse width modulation signal P1 and/or the second duty cycle D2 of the second pulse width modulation signal P2. The first duty cycle D1 can be between 15% and 75%, and the second duty cycle D2 can be between 25% and 85%. For example, when the first duty cycle D1 is 75%, and the second
When the duty cycle D2 is 25% (the first type of spectral control), the ratio of the first light intensity of all the first light L1 to the second light intensity of all the second light L2 can be between 2:1, the dimming mode The proportion of red light is relatively high. For another example, when the first duty cycle D1 is 40%, and the second duty cycle D2 is 60% (the second type of spectral control), the first light intensity of all the first light L1 and the second light intensity of all the second light L2 The strong ratio can be between 1:1, and the ratio of red light to blue light in this dimming mode is roughly the same. For another example, when the first duty cycle D1 is 15% and the second duty cycle D2 is 85% (the third spectrum control), the first light intensity of all the first light L1 and the second light intensity of all the second light L2 The strong ratio can be between 0.3:1, and the blue light in this dimming mode accounts for a relatively high proportion. The
雖然前述實施例係以第一工作週期D1與第二工作週期D2的和為100%為例說明,然本揭露實施例不受此限,第一工作週期D1與第二工作週期D2的和也可以超過或少於100%。此外,第一脈寬調製訊號P1之第一工作週期D1與第二脈寬調製訊號P2之第二工作週期D2可相異,然亦可相同。 Although the foregoing embodiment is described by taking the sum of the first duty cycle D1 and the second duty cycle D2 as 100% as an example, the embodiment of the present disclosure is not limited thereto, and the sum of the first duty cycle D1 and the second duty cycle D2 is also It can be more than or less than 100%. In addition, the first duty cycle D1 of the first pulse width modulation signal P1 and the second duty cycle D2 of the second pulse width modulation signal P2 may be different or the same.
在一實施例中,第一脈寬調製訊號P1的第一調變頻率及第二脈寬調製訊號P2的第二調變頻率例如是等於或大於1000Hz,然亦可小於1000Hz。 In one embodiment, the first modulation frequency of the first pulse width modulation signal P1 and the second modulation frequency of the second pulse width modulation signal P2 are, for example, equal to or greater than 1000 Hz, but may also be less than 1000 Hz.
如第5圖所示,時序訊號P3具有至少一導通區P31及至少一關閉區P32,時序訊號產生器133可控制導通區P31的時間長度,決定光源模組120的照明時間,且控制關閉區P32的時間長度,決定光源模組120的關閉(不發光)時間。導通區P31的長度與關閉區P32的長度可相同或相異。此外,導通區P31與關閉區P32也可週期性出現,使時序訊號P3為一週期性訊號。在一實施例中,時序訊號P3例如是具有一介於1Hz~200Hz之間的工作頻率。在本實施例中,時序訊號P3的工作頻率可低於第一脈寬調製訊號P1的第一調變頻率及第二脈寬調製訊號P2的第二調變頻率。在一實施例中,導通區P31及關閉區P32的長度可依據植物氣孔的開合決定。例如,時序訊號P3之導通區P31對應植物氣孔的開啟時間,以幫助植物生長,而時序訊號P3之關閉區P32對應植物氣孔的關閉時間,此時燈具100不發光,可達到節電效果。
As shown in Figure 5, the timing signal P3 has at least one conduction area P31 and at least one off area P32. The
如第4及5圖所示,當時序訊號P3之導通區P31輸入時序開關136時,時序開關136導通(ON),使第一開關134之源極134S及第二開關135之源極135S耦接於接地電位GND。當時序訊號P3之關閉區P32輸入時序開關136時,時序開關136關閉(OFF,斷開),使第一開關134之源極134S與接地電位GND斷開,進而使第一開關134呈浮接狀態,且使第二開關135之源極135S與接地電位GND斷開,進而使第二開關135呈浮接狀態,即,第一脈寬調製訊號P1對第一開關134無控制作用及第二脈寬調製訊號P2對第二開關135無控制作用。當第一脈寬調製訊號P1之導通區T11輸入至第一開關134之閘極134G時,第一開關134導通,因此第一脈寬調製訊號P1之導通區T11可透過第一開關
134控制第一光源121發出第一光線L1;當第一脈寬調製訊號P1之關閉區T12輸入至第一開關134之閘極134G時,第一開關134關閉,第一光源121不發光。相似地,當第二脈寬調製訊號P2之導通區T21輸入至第二開關135之閘極135G時,第二開關135導通,第二脈寬調製訊號P2之導通區T21可透過第二開關135控制第二光源122發出第二光線L2;當第二脈寬調製訊號P2之關閉區T22輸入至第二開關135之閘極135G時,第二開關135關閉,第二光源122不發光。
As shown in Figures 4 and 5, when the conduction area P31 of the timing signal P3 is input to the
如第5圖所示,透過前述控制模組130的設計,可獲得第一輸出控制訊號P1’控制第一光源121發出第一光線L1及第二輸出控制訊號P2’控制第二光源122發出第二光線L2。第一輸出控制訊號P1’可對第一光源121提供兼具第一脈寬調製訊號P1及時序訊號P3的控制效果,且第二輸出控制訊號P2’可對第二光源122提供兼具第二脈寬調製訊號P2及時序訊號P3的控制效果。
As shown in Figure 5, through the design of the
綜上,本揭露實施例之燈具之聚光透鏡之第一寬度、第二寬度及高度滿足特定設計(如,滿足上式(1)及(2)),可讓通過之光線聚光,以增加有效照射距離及/或照明亮度。在一實施例中,燈具可對光源模組進行光譜控制(調光),以提供特定光譜(或,光色比例)的照明。在一實施例中,燈具可對光源模組進行時序控制,以控制照明時間。 In summary, the first width, second width, and height of the condenser lens of the lamp of the embodiment of the disclosure meet the specific design (for example, satisfy the above equations (1) and (2)), and the light passing through can be concentrated to Increase the effective irradiation distance and/or lighting brightness. In one embodiment, the lamp can perform spectral control (dimming) on the light source module to provide illumination of a specific spectrum (or light color ratio). In one embodiment, the lamp can perform timing control on the light source module to control the lighting time.
綜上所述,雖然本揭露已以實施例揭露如上,然其並非用以限定本揭露。本揭露所屬技術領域中具有通常知識者,在不脫離本揭露之精神和範圍內,當可作各種之更動與潤飾。因此,本揭露之保護範圍當視後附之申請專利範圍所界定者為準。 To sum up, although the present disclosure has been disclosed as above through the embodiments, it is not intended to limit the present disclosure. Those with ordinary knowledge in the technical field to which this disclosure belongs can make various changes and modifications without departing from the spirit and scope of this disclosure. Therefore, the scope of protection of this disclosure shall be subject to the scope of the attached patent application.
111:聚光透鏡 111: Condenser lens
111i:入光面 111i: Glossy surface
111e:出光面 111e: Glossy surface
111u:頂面 111u: top surface
111r1,111r2:導圓角 111r1, 111r2: round corner
H:高度 H: height
W1:第一寬度 W1: first width
W2:第二寬度 W2: second width
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TW201516476A (en) * | 2013-10-28 | 2015-05-01 | 鴻海精密工業股份有限公司 | Lens |
TW201814203A (en) * | 2016-10-13 | 2018-04-16 | 國立臺灣科技大學 | Laser car lamp |
CN209944232U (en) * | 2019-05-21 | 2020-01-14 | 现代精密塑胶模具(深圳)有限公司 | Lens and lamp |
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TW201209343A (en) * | 2010-08-22 | 2012-03-01 | Cal Comp Electronics & Comm Co | Lens and lamp using the same |
CN102654272B (en) * | 2011-03-04 | 2013-11-13 | 海洋王照明科技股份有限公司 | Condenser lens of LED (light emitting diode) |
KR20130110967A (en) * | 2012-03-30 | 2013-10-10 | 삼성전자주식회사 | Floodlighting lens |
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TW201814203A (en) * | 2016-10-13 | 2018-04-16 | 國立臺灣科技大學 | Laser car lamp |
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