TWM596319U

TWM596319U - Projector capable of increasing light reflecting area

Info

Publication number: TWM596319U
Application number: TW108215914U
Authority: TW
Inventors: 江慶峯
Original assignee: 江慶峯
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-06-01

Abstract

本新型提供一種可增加光線反射面積的投光器，包括一導光罩由一透光的實心罩體構成，該罩體的表面包含一入光面、一釋光面及至少一反射面，所述至少一反射面的外表披覆有一遮蔽層，該入光面佈設有多個發光元件，其中所述至少一反射面包含具有聚光曲度的一特徵反射面，該特徵反射面上形成有多數個朝向罩體內弧凸的反射部，所述多個發光元件提供光線由該入光面投射進入該罩體，該罩體內的光線經由該特徵反射面和所述多數個反射部的反射而通過該釋光面對外投光。藉此，改善傳統投光器的投光難以均勻分布的問題。 The present invention provides a light projector that can increase the light reflection area, and includes a light guide cover composed of a light-transmitting solid cover body. The surface of the cover body includes a light incident surface, a light emitting surface and at least one reflecting surface. A shielding layer is coated on the outer surface of at least one reflective surface, and a plurality of light-emitting elements are disposed on the light incident surface, wherein the at least one reflective surface includes a characteristic reflective surface with a light collecting curvature A reflective portion facing the arc convex in the cover, the light emitting elements provide light projected into the cover from the light incident surface, and the light in the cover passes through the reflection of the characteristic reflection surface and the plurality of reflection portions The light emission is projected outward. In this way, the problem that the projection light of the traditional projector is difficult to distribute uniformly is improved.

Description

可增加光線反射面積的投光器 Projector capable of increasing light reflecting area

本新型涉及投光器構造，特別關於一種可增加光線反射面積的投光器。 The invention relates to the structure of a light projector, in particular to a light projector which can increase the light reflection area.

投光器是一種將例如是燈泡、燈管、發光二極體(LED)等發光元件所散發的光線加以反射後對外釋光的物器，且投光器能限制光源投射至一特定區域內，用以增加該特定區域的照度。 A light projector is an object that reflects light emitted by light emitting elements such as light bulbs, lamps, light emitting diodes (LEDs), etc., and emits light to the outside, and the light projector can limit the light source to project into a specific area to increase The illuminance of this particular area.

傳統的投光器若要增加投光的照度，一般採用如圖1及圖2所示的兩種方式。其中圖1揭示增加發光元件2的配置數量，來提升投光器投射至特定區域時的照度；圖2揭示將發光元件2配置於一具有圓弧狀反射面的導光罩1的一端，藉由圓弧狀反射面的聚光效果，來增加投光器投射至特定區域的照度。 To increase the illuminance of the projected light, the conventional light projector generally adopts two methods as shown in FIG. 1 and FIG. 2. 1 shows that increasing the number of light-emitting elements 2 is arranged to increase the illuminance of the light projector when projecting to a specific area; FIG. 2 shows that the light-emitting elements 2 are arranged at one end of a light-guiding cover 1 having an arc-shaped reflective surface. The light-gathering effect of the arc-shaped reflecting surface increases the illuminance projected by the light projector to a specific area.

然而，圖1中使用大量的發光元件2來增加照度的方式，除了會增加投光器的建置成本及佔置空間之外，使用時還會消耗大量的電能；再者，圖2中以圓弧狀反射面來增加照度的方式，雖然只需要使用到少量的發光元件2，但由於圓弧狀反射面的圓弧狀構造，而使投光器所投射出去的光線大部分集中於上述特定區域的中央位置，導致光線沒有均勻的分布於上述特定區域中，因此有待改進。 However, the method of using a large number of light-emitting elements 2 in FIG. 1 to increase the illuminance, in addition to increasing the construction cost and occupying space of the projector, also consumes a large amount of electrical energy during use; moreover, the arc in FIG. 2 Although only a small number of light-emitting elements 2 are needed to increase the illuminance by the shape of the reflective surface, the arc-shaped structure of the arc-shaped reflective surface causes most of the light projected by the light projector to be concentrated in the center of the specific area Due to the location, the light is not evenly distributed in the above specific area, so it needs to be improved.

有鑑於此，本新型旨在改善傳統投光器所投射出去的光線沒有均勻分布的問題，進而提供一種可增加光線反射面積的投光器。 In view of this, the present invention aims to improve the problem that the light projected by the conventional light projector is not evenly distributed, and thereby provide a light projector that can increase the light reflection area.

在一較佳實施中，本新型之技術手段包括：一導光罩，由一透光的實心罩體構成，該罩體的表面包含一入光面、一釋光面及至少一反射面，所述至少一反射面的外表披覆有一遮蔽層；多個發光元件，佈設於該入光面；其中，所述至少一反射面包含具有聚光曲度的一特徵反射面，該特徵反射面上形成有多數個朝向罩體內弧凸的反射部，所述多個發光元件提供光線由該入光面投射進入該罩體，該罩體內的光線經由該特徵反射面和所述多數個反射部的反射而通過該釋光面對外投光。 In a preferred implementation, the technical means of the present invention include: a light guide The cover is composed of a light-transmitting solid cover body. The surface of the cover body includes a light-incident surface, a light-emitting surface, and at least one reflective surface. The outer surface of the at least one reflective surface is covered with a shielding layer; The element is arranged on the light incident surface; wherein, the at least one reflecting surface includes a characteristic reflecting surface with a light-converging curvature, and the characteristic reflecting surface is formed with a plurality of reflecting portions convex toward the arc in the cover. Each light emitting element provides light to be projected into the cover from the light incident surface, and the light in the cover passes through the characteristic reflection surface and the reflection of the plurality of reflection portions to project light outward through the light release surface.

在進一步實施中，該罩體呈具有至少一錐度的圓錐形體，該特徵反射面的聚光曲度是由該罩體的圓錐輪廓形成，且該罩體中央形成一中空的取像通道，該取像通道雙端分別形成一取像孔及一釋光孔。其中該入光面呈環狀坐落於該取像孔的外圍，該特徵反射面和該釋光面經由該罩體厚度的間隔，而使該特徵反射面呈圓錐狀的作為該罩體的外表面，且該釋光面呈圓錐狀的坐落於該取像通道中作為該罩體的內表面。該取像孔的孔徑小於該釋光孔，且該特徵反射面和該釋光面分別由該取像孔朝向該釋光孔擴張傾斜。所述多個發光元件為呈環狀間隔佈設於一環形器殼中，該環形器殼配置於該入光面上。 In a further implementation, the cover body is a conical body with at least one taper, the focusing curvature of the characteristic reflecting surface is formed by the conical contour of the cover body, and a hollow imaging channel is formed in the center of the cover body, the An imaging hole and a light release hole are formed at both ends of the imaging channel, respectively. Wherein the light incident surface is ring-shaped and sits on the periphery of the imaging hole, the feature reflection surface and the light release surface are separated by the thickness of the cover body, so that the feature reflection surface is conical as the outer surface of the cover body The light-emitting surface is conical and sits in the imaging channel as the inner surface of the cover. The aperture of the imaging hole is smaller than that of the light-emitting hole, and the characteristic reflection surface and the light-emitting surface are respectively expanded and inclined toward the light-emitting hole by the imaging hole. The plurality of light-emitting elements are arranged in a ring-shaped space in a circular interval, and the ring-shaped housing is disposed on the light incident surface.

在進一步實施中，該圓錐形罩體包含由多個具有相異錐度的罩部串接形成。其中所述多個具有相異錐度的罩部包含一第一罩部及一第二罩部，該取像孔坐落於該第一罩部，該釋光孔坐落於該第二罩部，該取像通道具有一中心線，該第一罩部相對於該中心線的傾斜角θ₁相對小於或大於該第二罩部相對於該中心線的傾斜角θ₂。 In a further implementation, the conical mask body includes a plurality of mask portions having different tapers connected in series. The plurality of cover portions with different tapers include a first cover portion and a second cover portion, the imaging hole is located in the first cover portion, and the light release hole is located in the second cover portion, the The imaging channel has a center line, and the inclination angle θ _{1 of} the first cover part relative to the center line is relatively smaller or larger than the inclination angle θ _{2 of} the second cover part relative to the center line.

在進一步實施中，該罩體呈弧杯狀形體，該特徵反射面的聚光曲度是由該罩體的弧杯輪廓形成，且該罩體中央形成一中空的取像通道，該取像通道雙端分別形成一取像孔及一釋光孔。該入光面呈環狀坐落於該釋光孔的外圍，該特徵反射面和該釋光面經由該罩體厚度的間隔，而使該特徵反射面呈弧凸杯狀的作為該罩體的外表面，且該釋光面呈弧凹杯狀的坐落於該取像通道中作為該罩體的內表面。該取像孔的孔徑小於該釋光孔，且該特徵反射面和該釋光面分別由該取像孔朝向該釋光孔弧曲擴張。所述多個發光元件為呈環狀間隔佈設於一環形器殼中，該環形器殼配置於該入光面上。所述多個發光元件為呈環狀間隔佈設於一環形器殼中，該環形器殼配置於該入光面上。 In a further implementation, the cover is in the shape of an arc-shaped cup, the focusing curvature of the characteristic reflecting surface is formed by the contour of the arc cup of the cover, and a hollow imaging channel is formed in the center of the cover, the imaging The two ends of the channel respectively form an imaging hole and a light-release hole. The light-incident surface is ring-shaped and sits on the periphery of the light-emitting hole. The feature-reflecting surface and the light-emitting surface are separated by the thickness of the cover, so that the feature-reflecting surface is arc-shaped convex cup-shaped as the cover The outer surface, and the light-emitting surface is in the shape of an arc-concave cup sitting on the imaging channel Daozhong serves as the inner surface of the cover. The aperture of the imaging hole is smaller than that of the light-emitting hole, and the characteristic reflection surface and the light-emitting surface respectively expand from the imaging hole toward the light-emitting hole in a curved manner. The plurality of light-emitting elements are arranged in a ring-shaped space in a circular interval, and the ring-shaped housing is disposed on the light incident surface. The plurality of light-emitting elements are arranged in a ring-shaped space in a circular interval, and the ring-shaped housing is disposed on the light incident surface.

在進一步實施中，該罩體呈弧瓣形體，該特徵反射面的聚光曲度是由該罩體的弧瓣輪廓形成。其中該入光面呈面狀的坐落於該釋光面和該特徵反射面之間，該特徵反射面和該釋光面經由該罩體厚度的間隔，而使該特徵反射面和該釋光面呈現出相同的弧曲形態。 In a further implementation, the cover is in the shape of a curved lobe, and the light collecting curvature of the characteristic reflection surface is formed by the contour of the curved lobe of the cover. Wherein the light incident surface is planarly located between the light emitting surface and the feature reflecting surface, the feature reflecting surface and the light emitting surface are separated by the thickness of the cover to make the feature reflecting surface and the light emitting surface The surface exhibits the same curved shape.

根據上述技術，本新型所能產生的技術效果在於：藉由反射部來增加光源的反射面積，使發光元件提供的光線能以均勻分布方式對外投光，進而提升投光器的照度。 According to the above technology, the technical effect of the present invention is to increase the reflection area of the light source by the reflection part, so that the light provided by the light emitting element can project light to the outside in a uniform distribution manner, thereby improving the illuminance of the light projector.

除此之外，有關本新型可供據以實施的相關技術細節，將在後續的實施方式及圖式中加以闡述。 In addition, the relevant technical details on which the new model can be implemented will be described in subsequent embodiments and drawings.

1、10‧‧‧導光罩 1, 10‧‧‧ light guide

10a、10b、10c、10d‧‧‧罩體 10a, 10b, 10c, 10d

101‧‧‧第一罩部 101‧‧‧The first cover

102‧‧‧第二罩部 102‧‧‧The second cover

11a、11c、11d‧‧‧入光面 11a, 11c, 11d

12a、12c、12d‧‧‧釋光面 12a, 12c, 12d

13‧‧‧反射面 13‧‧‧Reflecting surface

13a、13c、13d‧‧‧特徵反射面 13a, 13c, 13d

14‧‧‧反射部 14‧‧‧Reflection Department

15‧‧‧取像通道 15‧‧‧Acquisition channel

151‧‧‧取像孔 151‧‧‧Acquisition hole

152‧‧‧釋光孔 152‧‧‧Light hole

2、20‧‧‧發光元件 2, 20‧‧‧ light emitting element

21‧‧‧器殼 21‧‧‧Housing

211‧‧‧通孔 211‧‧‧Through hole

30‧‧‧遮蔽層 30‧‧‧ masking layer

C‧‧‧中心線 C‧‧‧Centerline

θ₁、θ₂‧‧‧傾斜角 θ ₁ , θ ₂ ‧‧‧Tilt angle

圖1是傳統投光器實例一的示意圖。 FIG. 1 is a schematic diagram of Example 1 of a conventional light projector.

圖2是傳統投光器實例二的示意圖。 FIG. 2 is a schematic diagram of Example 2 of a conventional light projector.

圖3是本新型投光器之第一款實施例的剖示圖。 3 is a cross-sectional view of the first embodiment of the new light projector.

圖3a是圖3中導光罩的局部放大剖示圖。 FIG. 3a is a partially enlarged cross-sectional view of the light guide cover in FIG. 3. FIG.

圖4是光線投射至反射部時的示意圖。 FIG. 4 is a schematic diagram when light rays are projected onto the reflecting portion.

圖5是本新型投光器之第二款實施例的剖示圖。 5 is a cross-sectional view of a second embodiment of the new light projector.

圖6是本新型投光器之第三款實施例的剖示圖。 6 is a cross-sectional view of a third embodiment of the new light projector.

圖7是本新型投光器之第四款實施例的剖示圖。 7 is a cross-sectional view of a fourth embodiment of the new light projector.

首先，請合併參閱圖3及圖3a，揭露本新型所提供之一種可增加光線反射面積的投光器之第一款實施例的態樣，說明該可增加光線反射面積的投光器包括一導光罩10及多個發光元件20，其中： First, please refer to FIG. 3 and FIG. 3a together to disclose the first embodiment of the light projector that can increase the light reflection area provided by the present invention, and to illustrate that the light reflector that can increase the light reflection area includes a light guide cover 10 And multiple luminous elements Piece 20, where:

該導光罩10由一透光的實心罩體10a構成，該罩體10a的材質為玻璃或壓克力等透光材料。該罩體10a的表面包含一入光面11a、一釋光面12a及至少一反射面13，其中光線由入光面11a進入罩體10a，經由反射面13的反射而通過釋光面12a對外投光。進一步的說，所述反射面13的外表披覆有一由金屬塗料所構成的遮蔽層30，使反射面13能反射光線。 The light guide cover 10 is composed of a light-transmitting solid cover body 10a, and the material of the cover body 10a is a transparent material such as glass or acrylic. The surface of the cover 10a includes a light-incident surface 11a, a light-emitting surface 12a and at least one reflective surface 13, wherein light enters the cover 10a from the light-incident surface 11a, reflects through the light-reflecting surface 12a through the reflection surface 13 Cast light. Further, the reflecting surface 13 is covered with a shielding layer 30 made of metal paint, so that the reflecting surface 13 can reflect light.

所述反射面13包含具有聚光曲度的一特徵反射面13a，所述聚光曲度是指光線投射至特徵反射面13a時，會被反射至一特定區域而形成聚光現象。該特徵反射面13a上形成有多數個朝向罩體10a內弧凸的反射部14，光線由入光面11a進入罩體10a內經由特徵反射面13a和反射部14的反射而通過釋光面12a對外投光。進一步的說，所述反射部14在實施上是由罩體10a的特徵反射面13a上形成有多數個球粒狀凹槽，藉由特徵反射面13a的外表披覆有遮蔽層30而使球粒狀凹槽的槽壁形成反射部14。 The reflective surface 13 includes a characteristic reflective surface 13a having a light-converging curvature. The light-converging curvature means that when light is projected onto the characteristic reflective surface 13a, it will be reflected to a specific area to form a light-concentrating phenomenon. The characteristic reflection surface 13a is formed with a plurality of reflection portions 14 that are convex toward the inner surface of the cover 10a, and the light enters the cover 10a from the light entrance surface 11a, passes through the reflection surface 13a and the reflection portion 14 and passes through the light release surface 12a Casting light outside. Further, in the implementation, the reflecting portion 14 is formed by a plurality of spherical grooves on the characteristic reflection surface 13a of the cover body 10a. The outer surface of the characteristic reflection surface 13a is covered with a shielding layer 30 to make the ball The groove wall of the granular groove forms the reflection portion 14.

請再次參閱圖3，說明該罩體10a呈具有至少一錐度的圓錐形體，該特徵反射面13a的聚光曲度是由該罩體10a的圓錐輪廓形成。該罩體10a中央形成一中空的取像通道15，該取像通道15雙端分別延伸至罩體10a表面形成一取像孔151及一釋光孔152，該取像孔151的孔徑是小於釋光孔152，且特徵反射面13a和釋光面12a分別由取像孔151朝向釋光孔152擴張傾斜。該入光面11a在實施上是呈環狀坐落於取像孔151的外圍。進一步的說，該特徵反射面13a和釋光面12a經由罩體10a厚度的間隔，使該特徵反射面13a呈圓錐狀的作為罩體10a的外表面，且該釋光面12a呈圓錐狀的坐落於取像通道15中作為罩體10a的內表面。此外，該取像孔151在實施上用以組設一取像單元(未繪示)。 Please refer to FIG. 3 again to illustrate that the cover body 10a is a conical body having at least one taper. The light collecting curvature of the characteristic reflection surface 13a is formed by the conical contour of the cover body 10a. A hollow imaging channel 15 is formed in the center of the cover body 10a, and both ends of the imaging channel 15 extend to the surface of the cover body 10a to form an imaging hole 151 and a light release hole 152, the aperture of the imaging hole 151 is smaller than The light-emitting hole 152, and the characteristic reflection surface 13a and the light-emitting surface 12a are respectively expanded and inclined from the imaging hole 151 toward the light-emitting hole 152. The light incident surface 11 a is implemented in a ring shape and sits on the periphery of the imaging hole 151. Further, the characteristic reflection surface 13a and the light-emitting surface 12a are separated by the thickness of the cover 10a, so that the characteristic reflection surface 13a is conical as the outer surface of the cover 10a, and the light-emitting surface 12a is conical It sits in the imaging channel 15 as the inner surface of the cover 10a. In addition, the imaging hole 151 is used for assembling an imaging unit (not shown).

所述多個發光元件20是佈設於入光面11a，所述發光元件20在實施上為發光二極體(LED)。進一步的說，所述多個發光元件20為呈環狀間隔佈設於一環形器殼21中，該環形器殼 21配置於入光面11a上，使發光元件20所散發的光線能經由入光面11a進入罩體10a。更進一步的說，該環形器殼21具有一通孔211，該取像單元是經由通孔211而組設於取像孔151。 The plurality of light emitting elements 20 are arranged on the light incident surface 11a, and the light emitting elements 20 are implemented as light emitting diodes (LEDs). Further, the plurality of light-emitting elements 20 are arranged in a ring-shaped housing 21 in a circular interval, and the ring-shaped housing 21 is arranged on the light incident surface 11a, so that the light emitted by the light emitting element 20 can enter the cover 10a through the light incident surface 11a. Furthermore, the circulator housing 21 has a through hole 211, and the imaging unit is assembled to the imaging hole 151 through the through hole 211.

請參閱圖4，說明當多道光線以同一方向分別投射至反射部14上的不同位置時，由於反射部14弧凸的形狀，使每道光線與反射部14接觸時的入射角各不相同，依據入射角等於反射角的原理，因此每道光線的反射角也不相同，藉此，透過反射部14所反射的多角度光線來增加光線的投射方向，使光不會集中於某一方向及位置。 Please refer to FIG. 4 to illustrate that when multiple rays of light are respectively projected to different positions on the reflecting portion 14 in the same direction, due to the convex shape of the reflecting portion 14, the incident angle of each light ray in contact with the reflecting portion 14 is different from each other , According to the principle that the angle of incidence is equal to the angle of reflection, the angle of reflection of each ray of light is also different. By this, the multi-angle light reflected by the reflection section 14 increases the direction of projection of the light so that the light will not be concentrated in a certain direction And location.

請參閱圖5，揭露本新型投光器的第二款實施態樣，說明該圓錐形罩體10b包含由多個具有相異錐度的罩部串接形成。更具體的說，所述罩部包含一第一罩部101及一第二罩部102，該取像孔151坐落於第一罩部101，該釋光孔152坐落於第二罩部102，該第一罩部101與取像通道15的中心線C之間具有一傾斜角θ₁，該第二罩部102與取像通道15的中心線C之間具有一傾斜角θ₂，該傾斜角θ₁是小於傾斜角θ₂(即θ₁<θ₂)。藉此，能增加罩體10b用來反射光線的反射面積，進而增加相異角度的投光面域。此外，本新型亦可實施成該傾斜角θ₁是大於傾斜角θ₂(即θ₁<θ₂)的態樣(未繪圖)，均屬本新型創思下的簡易變換，自當為本新型所概括，併予陳明。 Please refer to FIG. 5 to disclose the second embodiment of the light projector of the present invention, illustrating that the conical cover body 10b includes a plurality of cover portions with different tapers connected in series. More specifically, the cover portion includes a first cover portion 101 and a second cover portion 102, the imaging hole 151 is located in the first cover portion 101, and the light emitting hole 152 is located in the second cover portion 102, the first cover portion 101 and the center line C between the imaging channel 15 has an inclined angle θ _1, the cover portion 102 and the second imaging center line between the C-channel 15 has an inclination angle θ _2, the inclined The angle θ ₁ is smaller than the tilt angle θ ₂ (that is, θ ₁ <θ ₂ ). In this way, the reflecting area of the cover body 10b for reflecting light can be increased, thereby increasing the projection area of different angles. In addition, the present invention can also be implemented such that the inclination angle θ ₁ is greater than the inclination angle θ ₂ (that is, θ ₁ <θ ₂ ) (not drawn), which are all simple transformations under the new creative concept, and are based on Summarized by the new model and given to Chen Ming.

請參閱圖6，揭露本新型投光器的第三款實施態樣，說明該罩體10c是呈弧杯狀形體，該特徵反射面13c的聚光曲度是由罩體10c的弧杯輪廓形成。該罩體10c的特徵反射面13c和釋光面12c分別由取像孔151朝向釋光孔152弧曲擴張，該入光面11c是呈環狀坐落於釋光孔152的外圍，也就是說發光元件20是佈設於釋光孔152的外圍，使光線經由釋光孔152通過通孔211投射至外界。進一步的說，該特徵反射面13c和釋光面12c經由罩體10c厚度的間隔，使該特徵反射面13c呈弧凸杯狀的作為罩體10c的外表面，且該釋光面12c呈弧凹杯狀的坐落於取像通道 15中作為罩體10c的內表面。相較於圖2中傳統的導光罩1來說，本實施例中的導光罩10能藉由反射部14來增加光源的反射面積，使發光元件20所提供的光線能以均勻分布方式對外投光，進而提升投光器的照度。 Referring to FIG. 6, a third embodiment of the light projector of the present invention is disclosed, illustrating that the cover body 10c is in the shape of an arc-shaped cup, and the focusing curvature of the characteristic reflection surface 13c is formed by the contour of the arc cup of the cover 10c. The characteristic reflecting surface 13c and the light emitting surface 12c of the cover body 10c are respectively curvedly expanded from the imaging hole 151 toward the light emitting hole 152, and the light incident surface 11c is annularly located on the periphery of the light emitting hole 152, that is to say The light emitting element 20 is disposed around the light emitting hole 152, so that light is projected to the outside through the through hole 211 through the light emitting hole 152. Further, the characteristic reflection surface 13c and the light-emitting surface 12c are separated by the thickness of the cover 10c, so that the characteristic reflection surface 13c is an arc-shaped convex cup-shaped outer surface of the cover 10c, and the light-emitting surface 12c is arc-shaped Concave cup-shaped is located in the acquisition channel 15 is the inner surface of the cover 10c. Compared with the conventional light guide 1 in FIG. 2, the light guide 10 in this embodiment can increase the reflection area of the light source through the reflection portion 14, so that the light provided by the light emitting element 20 can be evenly distributed Projecting light externally, thereby increasing the illuminance of the projector.

請參閱圖7，揭露本新型投光器的第四款實施態樣，說明該罩體10d是呈弧瓣形體，該特徵反射面13d的聚光曲度是由罩體10d的弧瓣輪廓形成。進一步的說，該入光面11d是呈面狀的坐落於釋光面12d和特徵反射面13d之間，該特徵反射面13d和釋光面12經由罩體10d厚度的間隔，使該特徵反射面13d和該釋光面12呈現出相同的弧曲形態。使發光元件20所提供的光線經由特徵反射面13d和反射部14的反射而能以均勻分布方式對外投光，進而提升投光器的照度。 Referring to FIG. 7, the fourth embodiment of the light projector of the present invention is disclosed, illustrating that the cover body 10d is in the shape of a curved lobe, and the light collecting curvature of the characteristic reflection surface 13d is formed by the contour of the curved lobe of the cover 10d. Further, the light incident surface 11d is planarly located between the light emitting surface 12d and the feature reflecting surface 13d, and the feature reflecting surface 13d and the light emitting surface 12 are reflected by the thickness of the cover 10d to cause the feature to reflect The surface 13d and the light-emitting surface 12 exhibit the same curved shape. The light provided by the light-emitting element 20 is reflected by the characteristic reflection surface 13d and the reflection portion 14 to project light in a uniformly distributed manner, thereby improving the illuminance of the light projector.

以上實施例僅為表達了本新型的較佳實施方式，但並不能因此而理解為對本新型專利範圍的限制。因此，本新型應以申請專利範圍中限定的請求項內容為準。 The above examples merely express the preferred embodiments of the present invention, but they should not be construed as limiting the scope of the patent of the present invention. Therefore, this new model shall be subject to the content of the claims defined in the scope of patent application.

10‧‧‧導光罩 10‧‧‧Light guide

10a‧‧‧罩體 10a‧‧‧cover

11a‧‧‧入光面 11a‧‧‧Into the light side

12a‧‧‧釋光面 12a‧‧‧Luminous surface

13‧‧‧反射面 13‧‧‧Reflecting surface

13a‧‧‧特徵反射面 13a‧‧‧Characteristic reflection surface

14‧‧‧反射部 14‧‧‧Reflection Department

15‧‧‧取像通道 15‧‧‧Acquisition channel

151‧‧‧取像孔 151‧‧‧Acquisition hole

152‧‧‧釋光孔 152‧‧‧Light hole

20‧‧‧發光元件 20‧‧‧Lighting element

21‧‧‧器殼 21‧‧‧Housing

211‧‧‧通孔 211‧‧‧Through hole

30‧‧‧遮蔽層 30‧‧‧ masking layer

Claims

一種可增加光線反射面積的投光器，包括： A light projector capable of increasing light reflecting area, including:

一導光罩，由一透光的實心罩體構成，該罩體的表面包含一入光面、一釋光面及至少一反射面，所述至少一反射面的外表披覆有一遮蔽層； A light guide cover is composed of a light-transmitting solid cover body, and the surface of the cover body includes a light-incident surface, a light-emitting surface and at least one reflection surface, and the outer surface of the at least one reflection surface is covered with a shielding layer;

多個發光元件，佈設於該入光面； Multiple light emitting elements are arranged on the light incident surface;

其中，所述至少一反射面包含具有聚光曲度的一特徵反射面，該特徵反射面上形成有多數個朝向罩體內弧凸的反射部，所述多個發光元件提供光線由該入光面投射進入該罩體，該罩體內的光線經由該特徵反射面和所述多數個反射部的反射而通過該釋光面對外投光。 Wherein, the at least one reflecting surface includes a characteristic reflecting surface with a condensing curvature, a plurality of reflecting portions formed toward the arc convex in the cover are formed on the characteristic reflecting surface, and the light emitting elements provide light from the incident light The surface is projected into the cover, and the light in the cover passes through the characteristic reflection surface and the reflections of the plurality of reflection parts to project light outward through the light release surface.

如請求項1所述可增加光線反射面積的投光器，其中該罩體呈具有至少一錐度的圓錐形體，該特徵反射面的聚光曲度是由該罩體的圓錐輪廓形成，且該罩體中央形成一中空的取像通道，該取像通道雙端分別形成一取像孔及一釋光孔。 The light projector which can increase the light reflection area according to claim 1, wherein the cover body is a conical body having at least one taper, the light collecting curvature of the characteristic reflecting surface is formed by the conical contour of the cover body, and the cover body A hollow imaging channel is formed in the center, and an imaging hole and a light release hole are formed at both ends of the imaging channel.

如請求項2所述可增加光線反射面積的投光器，其中該入光面呈環狀坐落於該取像孔的外圍，該特徵反射面和該釋光面經由該罩體厚度的間隔，而使該特徵反射面呈圓錐狀的作為該罩體的外表面，且該釋光面呈圓錐狀的坐落於該取像通道中作為該罩體的內表面。 The light projector which can increase the light reflecting area as described in claim 2, wherein the light incident surface is ring-shaped and sits on the periphery of the image capturing hole, and the characteristic reflecting surface and the light emitting surface are separated by the thickness of the cover, so that The characteristic reflecting surface is conical and serves as the outer surface of the cover, and the light emitting surface is conical and sits in the imaging channel as the inner surface of the cover.

如請求項3所述可增加光線反射面積的投光器，其中該取像孔的孔徑小於該釋光孔，且該特徵反射面和該釋光面分別由該取像孔朝向該釋光孔擴張傾斜。 The light projector capable of increasing the light reflecting area as described in claim 3, wherein the aperture of the image capturing hole is smaller than the light emitting hole, and the characteristic reflecting surface and the light emitting surface are respectively expanded and inclined from the image capturing hole toward the light emitting hole .

如請求項1所述可增加光線反射面積的投光器，其中所述多個發光元件為呈環狀間隔佈設於一環形器殼中，該環形器殼配置於該入光面上。 The light projector as claimed in claim 1, wherein the plurality of light emitting elements are arranged in a ring-shaped space in a ring-shaped interval, and the ring-shaped device shell is disposed on the light incident surface.

如請求項2至5中任1項所述可增加光線反射面積的投光器，其中該圓錐形罩體包含由多個具有相異錐度的罩部串接形成。 The light projector that can increase the light reflecting area as described in any one of claims 2 to 5, wherein the conical cover body includes a plurality of cover portions having different tapers connected in series.

如請求項6所述可增加光線反射面積的投光器，其中所述多個具有相異錐度的罩部包含一第一罩部及一第二罩部，該取像孔坐落於該第一罩部，該釋光孔坐落於該第二罩部。 The light projector capable of increasing the light reflection area according to claim 6, wherein the plurality of cover portions with different tapers include a first cover portion and a second cover portion, and the image capturing hole is located in the first cover portion The light release hole is located in the second cover part.

如請求項7所述可增加光線反射面積的投光器，其中該取像通道具有一中心線，該第一罩部相對於該中心線的傾斜角θ₁相對小於或大於該第二罩部相對於該中心線的傾斜角θ₂。 The light projector capable of increasing the light reflection area according to claim 7, wherein the imaging channel has a center line, and the inclination angle θ _{1 of} the first cover part relative to the center line is relatively smaller or larger than the second cover part relative to The inclination angle θ _{2 of} the center line.

如請求項1所述可增加光線反射面積的投光器，其中該罩體呈弧杯狀形體，該特徵反射面的聚光曲度是由該罩體的弧杯輪廓形成，且該罩體中央形成一中空的取像通道，該取像通道雙端分別形成一取像孔及一釋光孔。 The light projector which can increase the light reflection area as described in claim 1, wherein the cover body is an arc-cup-shaped body, the light collecting curvature of the characteristic reflection surface is formed by the contour of the arc cup of the cover body, and the center of the cover body is formed A hollow imaging channel, and two ends of the imaging channel respectively form an imaging hole and a light release hole.

如請求項9所述可增加光線反射面積的投光器，其中該入光面呈環狀坐落於該釋光孔的外圍，該特徵反射面和該釋光面經由該罩體厚度的間隔，而使該特徵反射面呈弧凸杯狀的作為該罩體的外表面，且該釋光面呈弧凹杯狀的坐落於該取像通道中作為該罩體的內表面。 The light projector with increased light reflection area as described in claim 9, wherein the light incident surface is ring-shaped and sits on the periphery of the light emitting hole, and the characteristic reflection surface and the light emitting surface are separated by the thickness of the cover The characteristic reflection surface is an arc-convex cup shape as the outer surface of the cover body, and the light-emitting surface is an arc-concave cup shape sitting in the imaging channel as the inner surface of the cover body.

如請求項10所述可增加光線反射面積的投光器，其中該取像孔的孔徑小於該釋光孔，且該特徵反射面和該釋光面分別由該取像孔朝向該釋光孔弧曲擴張。 The light projector capable of increasing the light reflecting area as described in claim 10, wherein the aperture of the image capturing hole is smaller than the light emitting hole, and the characteristic reflecting surface and the light emitting surface are respectively curved from the image capturing hole toward the light emitting hole expansion.

如請求項10所述可增加光線反射面積的投光器，其中所述多個發光元件為呈環狀間隔佈設於一環形器殼中，該環形器殼配置於該入光面上。 The light projector with increased light reflection area according to claim 10, wherein the plurality of light-emitting elements are arranged in a ring-shaped space in a ring-shaped interval, and the ring-shaped device shell is disposed on the light incident surface.

如請求項1所述可增加光線反射面積的投光器，其中該罩體呈弧瓣形體，該特徵反射面的聚光曲度是由該罩體的弧瓣輪廓形成。 The light projector which can increase the light reflection area according to claim 1, wherein the cover body is in the shape of a curved lobe, and the light collecting curvature of the characteristic reflecting surface is formed by the contour of the curved lobe of the cover.

如請求項13所述可增加光線反射面積的投光器，其中該入光面呈面狀的坐落於該釋光面和該特徵反射面的雙側，該特徵反射面和該釋光面經由該罩體厚度的間隔，而使該特徵反射面和該釋光面呈現出相同的弧曲形態。 The light projector capable of increasing the light reflecting area according to claim 13, wherein the light incident surface is planarly located on both sides of the light emitting surface and the feature reflecting surface, the feature reflecting surface and the light emitting surface pass through the cover The interval of the body thickness makes the characteristic reflection surface and the light-emitting surface exhibit the same curved shape.