CN108730795A

CN108730795A - Light projection device

Info

Publication number: CN108730795A
Application number: CN201710239903.9A
Authority: CN
Inventors: 王正
Original assignee: Chengyi Photoelectric Polytron Technologies Inc
Current assignee: Chengyi Photoelectric Polytron Technologies Inc
Priority date: 2017-04-13
Filing date: 2017-04-13
Publication date: 2018-11-02

Abstract

The present invention discloses a kind of light projection device comprising a lens unit, a reflector element and a luminescence unit.Lens unit has a lens focus and a lens axis, and lens axis passes through a datum plane.Reflector element includes one first catoptric arrangement and one second catoptric arrangement, and the first catoptric arrangement has one first focus and one second focus.Second catoptric arrangement has one first focus and one second focus.One first light emitting structure of luminescence unit corresponds to the first focus of the first catoptric arrangement.One second light emitting structure of luminescence unit corresponds to the first focus of the second catoptric arrangement.One first throw light caused by first light emitting structure can be projected towards the direction of the first catoptric arrangement and the direction of datum plane, and one second throw light caused by the second light emitting structure can be towards the direction of the second catoptric arrangement and the projection of the direction of datum plane.Whereby, invention achieves the effects for improving light gathering efficiency.

Description

Light projection device

Technical field

The present invention relates to a kind of light projection devices, and dress is projected more particularly to a kind of light that can improve light gathering efficiency It sets.

Background technology

First, the demand of the prior art whether automobile lamp (far lamp far lamp auxiliary lamp) or searchlight etc. is all It is required that optically focused, to achieve the purpose that telecurie irradiation.

However, the spotlight effect of the light projection device of the prior art and bad, therefore, how to provide a kind of using can Light projection device with high efficiency and light effect already becomes this technical field people to overcome above-mentioned defect Scholar's important topic to be solved.

Invention content

Technical problem to be solved by the present invention lies in provide a kind of light projection device in view of the deficiencies of the prior art.

In order to solve the above technical problems, a wherein technical solution of the present invention is to provide a kind of light throwing Injection device a comprising lens unit, a reflector element and a luminescence unit.The lens unit have a lens focus with And one by the lens axis of the lens focus, the lens axis is by a datum plane and to be parallel to the benchmark flat Face, the datum plane have one first lateral surface and second lateral surface relative to first lateral surface.It is described anti- It includes one first catoptric arrangement and one second catoptric arrangement to penetrate unit, and first catoptric arrangement has one to be located at adjacent to described Described the of first lateral surface and the first focus other than first lateral surface and corresponding first catoptric arrangement One second focus of one focus, second catoptric arrangement have one to be located at neighbouring second lateral surface and be located at described second The first focus and one other than lateral surface correspond to the second focus of first focus of second catoptric arrangement.The hair Light unit includes one first light emitting structure and one second light emitting structure, and first light emitting structure corresponds to the first reflection knot First focus of structure, and first light emitting structure is positioned adjacent to first lateral surface and positioned at first outside Position other than face, second light emitting structure correspond to first focus of second catoptric arrangement, and second hair Photo structure is positioned adjacent to second lateral surface and the position other than second lateral surface, wherein first hair One first throw light caused by photo structure can be towards the direction of first catoptric arrangement and the side of the datum plane To projection, one second throw light caused by second light emitting structure can towards the direction of second catoptric arrangement and The direction of the datum plane projects.

Further, first focus of first catoptric arrangement and described the first of second catoptric arrangement Wire definition between focus is a default axis, have between the default axis and the lens axis one between 80 degree extremely Predetermined angle between 100 degree.

Further, first light emitting structure has one first light-emitting surface, and first throw light can be along One first normal direction of first light-emitting surface is towards the direction of first catoptric arrangement and the side of the datum plane To projection, second light emitting structure has one second light-emitting surface, and one second projection caused by second light emitting structure Light can be along one second normal direction of second light-emitting surface towards the direction of second catoptric arrangement and the base The direction of directrix plane projects, wherein first throw light is passed through by the reflection of first catoptric arrangement with forming one First reflection light of second focus of first catoptric arrangement, second throw light are reflected by described second The reflection of structure, to form second reflection light by second focus of second catoptric arrangement.

Further, first focus and the lens light that a first axle can be by first catoptric arrangement Axis, and a second axis can pass through first focus of second catoptric arrangement and the lens axis, wherein it is described Mirror unit has one to receive light cone face, and the receipts light cone face has one first extended segment and one second extended segment, and described first prolongs First focus that section corresponds to first catoptric arrangement is stretched, second extended segment corresponds to the institute of second catoptric arrangement State the first focus, wherein the first axle is generally perpendicular to first extended segment, and the second axis is generally perpendicular to institute State the second extended segment.

Further, described the of first focus of first catoptric arrangement and second catoptric arrangement One focus is all located between first extended segment and second extended segment either first extended segment described in First focus that first focus of first catoptric arrangement and second extended segment pass through second catoptric arrangement.

Further, it is anti-with described second positioned at first catoptric arrangement to still further comprise one for the reflector element The reflecting surface in structure is penetrated, there is a cross-point, wherein the first axle between the lens axis and the reflecting surface There is one first intersection point between line and the lens axis, have one second to hand between the second axis and the lens axis Point, the cross-point to the preset distance between the lens focus are less than first intersection point between the lens focus One first distance, the cross-point to the preset distance between the lens focus is less than second intersection point to described A second distance between lens focus.

Further, pre- with one first between the cross-point and first focus of first catoptric arrangement There is one second predetermined axial line between first focus of dead axle line, the cross-point and second catoptric arrangement, wherein There is first predetermined angular between 7 degree to 31 degree between first predetermined axial line and the first axle, it is described There is second predetermined angular between 7 degree to 31 degree between second predetermined axial line and the second axis.

Further, first focus of first catoptric arrangement and described the first of second catoptric arrangement Wire definition between focus is a default axis, has a crosspoint between the default axis and the lens axis, In, the reflector element still further comprises one and is located at first catoptric arrangement and the reflection table on second catoptric arrangement Face has a cross-point between the lens axis and the reflecting surface, wherein the first axle and the lens axis Between have one first intersection point, the cross-point is between first intersection point and the crosspoint.

Further, there is one second intersection point, the staggeredly point between the second axis and the lens axis Between second intersection point and the crosspoint.

Further, second focus of first catoptric arrangement is located on the lens axis either neighbouring It is located on the lens axis in second focus of the lens axis, second catoptric arrangement or is adjacent to institute State lens axis.

Further, second focus of first catoptric arrangement, second catoptric arrangement described second Focus and the lens focus three overlap.

Further, first catoptric arrangement and second catoptric arrangement are interconnected with one another, and described The junction that mirror optical axis passes through first catoptric arrangement and second catoptric arrangement.

Further, first light emitting structure is adjacent to first focus or direct of first catoptric arrangement It is arranged in first focus of first catoptric arrangement, second light emitting structure is adjacent to second catoptric arrangement First focus either be set up directly in first focus of second catoptric arrangement.

Further, the reflector element still further comprises one first cambered surface catoptric arrangement and one second cambered surface is anti- Structure is penetrated, the first cambered surface catoptric arrangement is positioned adjacent to first lateral surface and other than first lateral surface Position, the second cambered surface catoptric arrangement are positioned adjacent to second lateral surface and the position other than second lateral surface It sets.

Further, the first cambered surface catoptric arrangement and the second cambered surface catoptric arrangement have parabolic curvature, There is the first cambered surface catoptric arrangement focus, the second cambered surface catoptric arrangement to have a focus, first light-emitting junction Structure corresponds to the focus of the second cambered surface catoptric arrangement, and second light emitting structure is reflected corresponding to first cambered surface The focus of structure.

Further, one first injection light can be anti-towards second cambered surface caused by first light emitting structure The direction projection of structure is penetrated, one second injection light can be reflected towards first cambered surface caused by second light emitting structure The direction of structure projects, wherein described first projects reflection of the light by the second cambered surface catoptric arrangement, to form one the One irradiation light, described second projects reflection of the light by the first cambered surface catoptric arrangement, to form one second irradiation light Line.

Further, the lens unit has one to receive light cone face, and the reflector element still further comprises an extension Catoptric arrangement, first catoptric arrangement and second catoptric arrangement are located in the range in the receipts light cone face.

Further, curvature of curved surface or institute of the curvature of curved surface for extending catoptric arrangement with first catoptric arrangement The curvature of curved surface for stating the second catoptric arrangement is identical.

Further, it is anti-with described second positioned at first catoptric arrangement to still further comprise one for the reflector element The reflecting surface in structure is penetrated, there is a cross-point, wherein one first tangent line between the lens axis and the reflecting surface Can be by the cross-point and tangent with first catoptric arrangement, and have between first tangent line and the lens axis The first corner cut between 47 degree to 64.5 degree, one second tangent line can by the cross-point and with second catoptric arrangement It is tangent, and there is the second corner cut between 47 degree to 64.5 degree between second tangent line and the lens axis.

Further, first catoptric arrangement has first focus for being adjacent to first catoptric arrangement Vertex, the vertex of first catoptric arrangement is to having one the between first focus of first catoptric arrangement First focus of one short distance, first catoptric arrangement has between second focus of first catoptric arrangement There is one first long range, wherein first long range is more than first short distance, first long range and described first Short-range ratio is between 1.8 to 3.8.

Further, second catoptric arrangement has first focus for being adjacent to second catoptric arrangement Vertex, the vertex of second catoptric arrangement is to having one the between first focus of second catoptric arrangement First focus of two short distances, second catoptric arrangement has between second focus of second catoptric arrangement There is one second long range, wherein second long range is more than second short distance, second long range and described second Short-range ratio is between 1.8 to 3.8.

Further, first catoptric arrangement has a first end point, one relative to first catoptric arrangement Second endpoint of the first end point and a vertex, wherein the first end point of first catoptric arrangement to described There is a first end point distance, the vertex to the institute of first catoptric arrangement between second endpoint of one catoptric arrangement Stating has one first vertical range between lens axis, and the first end point distance is more than first vertical range, and described the The ratio of end point distance and first vertical range is between 0.7 to 1.8.

Further, second catoptric arrangement has a first end point, one relative to second catoptric arrangement Second endpoint of the first end point and a vertex, wherein the first end point of second catoptric arrangement to described There is one second end-point distances, the vertex to the institute of second catoptric arrangement between second endpoint of two catoptric arrangements Stating has one second vertical range between lens axis, and second end-point distances are more than second vertical range, and described the The ratio of two end-point distances and second vertical range is between 0.7 to 1.8.

Further, the reflector element still further comprises a third catoptric arrangement, and the luminescence unit is also into one Step includes a third light emitting structure, and the third catoptric arrangement has one to be located at neighbouring first lateral surface and be located at described the One second focus of first focus of the first focus and the corresponding third catoptric arrangement other than one lateral surface, it is described Third light emitting structure corresponds to first focus of the third catoptric arrangement, and the third light emitting structure is positioned adjacent to institute State the first lateral surface and the position other than first lateral surface, wherein one the caused by the third light emitting structure Three throw lights can be projected towards the direction of the third catoptric arrangement and the direction of the datum plane.

Further, first focus of first catoptric arrangement, second catoptric arrangement described first The plane definition that focus and the first focus of the third catoptric arrangement are constituted be a preset plane, the preset plane with There is a predetermined angle between 80 degree to 100 degree between the datum plane.

Further, the third light emitting structure has a third light-emitting surface, and the third throw light can be along One third normal direction of the third light-emitting surface is towards the direction of the third catoptric arrangement and the side of the datum plane To projection, wherein the third throw light is anti-by the third to form one by the reflection of the third catoptric arrangement The third reflection light of second focus of structure is penetrated, the third throw light is anti-by the third catoptric arrangement It penetrates, to form a third reflection light by second focus of the third catoptric arrangement.

Further, first focus and the lens light that a first axle can be by first catoptric arrangement Axis, first focus and the lens axis that a second axis can be by second catoptric arrangement, and a third axis First focus that can be by the third catoptric arrangement and the lens axis, wherein the lens unit has one to receive Light cone face, the receipts light cone face have one first extended segment, one second extended segment and a third extended segment, and described first extends First focus of corresponding first catoptric arrangement of section, second extended segment corresponds to the described of second catoptric arrangement First focus, the third extended segment correspond to first focus of the third catoptric arrangement, wherein the first axle is big Body is perpendicular to first extended segment, and the second axis is generally perpendicular to second extended segment, and the third axis is big Body is perpendicular to the third extended segment.

Further, first focus of first catoptric arrangement, second catoptric arrangement described first Focus and the first focus of the third catoptric arrangement are all located at first extended segment, second extended segment and described Between third extended segment or first extended segment passes through first focus of first catoptric arrangement, described Two extended segments, which are reflected by first focus and the third extended segment of second catoptric arrangement by the third, ties First focus of structure.

Further, the reflector element still further comprises one and is located at first catoptric arrangement, described second anti- The reflecting surface on structure and the third catoptric arrangement is penetrated, has one to hand between the lens axis and the reflecting surface Wrong point, wherein there are one first intersection point, the second axis and the lens between the first axle and the lens axis There is one second intersection point between optical axis, there is a third intersection point between the third axis and the lens axis, it is described to interlock Point to the preset distance between the lens focus be less than first intersection point to one first between the lens focus away from From, the cross-point to the preset distance between the lens focus be less than second intersection point to the lens focus it Between a second distance, the cross-point to the preset distance between the lens focus is less than the third intersection point to institute State the third distance between lens focus.

Further, pre- with one first between the cross-point and first focus of first catoptric arrangement There is one second predetermined axial line between first focus of dead axle line, the cross-point and second catoptric arrangement, it is described There is a third predetermined axial line, wherein described first is pre- between cross-point and first focus of the third catoptric arrangement There is first predetermined angular between 7 degree to 31 degree, second predetermined shaft between dead axle line and the first axle Between line and the second axis have second predetermined angular between 7 degree to 31 degree, the third predetermined axial line and There is a third predetermined angular between 7 degree to 31 degree between the third axis.

Further, first focus of first catoptric arrangement, second catoptric arrangement described first The plane definition that focus and the first focus of the third catoptric arrangement are constituted be a preset plane, the preset plane with There is a crosspoint, wherein the reflector element still further comprises one and is located at first reflection between the lens axis Structure and the reflecting surface on second catoptric arrangement have one to interlock between the lens axis and the reflecting surface Point, wherein there is one first intersection point, the cross-point to be located at described first and hand between the first axle and the lens axis Between point and the crosspoint.

Further, second focus of first catoptric arrangement is located on the lens axis either neighbouring It is located on the lens axis in second focus of the lens axis, second catoptric arrangement or is adjacent to institute Lens axis is stated, second focus of the third catoptric arrangement is located on the lens axis or is adjacent to described Mirror optical axis.

Further, second focus of first catoptric arrangement, second catoptric arrangement described second Focus, second focus of the third catoptric arrangement and the lens focus overlap.

Further, first catoptric arrangement, second catoptric arrangement and the third catoptric arrangement be each other It is connected with each other, and the lens axis is reflected by first catoptric arrangement, second catoptric arrangement and the third The junction of structure.

Further, the reflector element still further comprises one and is located at first catoptric arrangement, described second anti- The reflecting surface on structure and the third catoptric arrangement is penetrated, has one to hand between the lens axis and the reflecting surface Wrong point, wherein one first tangent line can be by the cross-point and tangent with first catoptric arrangement, and first tangent line with There is the first corner cut between 47 degree to 64.5 degree, one second tangent line can pass through the cross-point between the lens axis And it is tangent with second catoptric arrangement, and have between 47 degree to 64.5 degree between second tangent line and the lens axis Between the second corner cut, a third tangent line can be by the cross-point and tangent with the third catoptric arrangement, and the third There is the third corner cut between 47 degree to 64.5 degree between tangent line and the lens axis.

Further, the reflector element still further comprises one the 4th catoptric arrangement, and the luminescence unit is also into one Step includes one the 4th light emitting structure, and the 4th catoptric arrangement has one to be located at neighbouring second lateral surface and be located at described the One second focus of first focus of the first focus and corresponding 4th catoptric arrangement other than two lateral surfaces, it is described 4th light emitting structure corresponds to first focus of the 4th catoptric arrangement, and the 4th light emitting structure is positioned adjacent to institute State the second lateral surface and the position other than second lateral surface, wherein one the caused by the 4th light emitting structure Four throw lights can be projected towards the direction of the 4th catoptric arrangement and the direction of the datum plane.

The beneficial effects of the present invention are the light projection device that the embodiment of the present invention is provided can utilize " described One first throw light caused by one light emitting structure can be towards the direction of first catoptric arrangement and the datum plane Direction projection, one second throw light caused by second light emitting structure can be towards the direction of second catoptric arrangement And the direction projection of the datum plane " technical solution, and achieve the effect that " improve light harvesting (optically focused) efficiency ".

For the enabled feature and technology contents for being further understood that the present invention, please refer to below in connection with the present invention specifically Bright and attached drawing, however the attached drawing provided is merely provided for reference and description, is not intended to limit the present invention.

Description of the drawings

Fig. 1 is a wherein stereoscopic schematic diagram for first embodiment of the invention light projection device.

Fig. 2 is an other stereoscopic schematic diagram for first embodiment of the invention light projection device.

Fig. 3 is the side elevational cross-section schematic diagram of the III-III hatchings of Fig. 2.

Fig. 4 is the close-up schematic view of the parts IV of Fig. 3.

Fig. 5 is the first light emitting structure of light projection device and the second light emitting structure respectively to the first catoptric arrangement and second Light type perspective view caused by catoptric arrangement.

Fig. 6 is a wherein stereoscopic schematic diagram for second embodiment of the invention light projection device.

Fig. 7 is an other stereoscopic schematic diagram for second embodiment of the invention light projection device.

Fig. 8 is that second embodiment of the invention extends catoptric arrangement and the first catoptric arrangement and the second catoptric arrangement position distribution A wherein stereoscopic schematic diagram.

Fig. 9 is that second embodiment of the invention extends catoptric arrangement and the first catoptric arrangement and the second catoptric arrangement position distribution An other stereoscopic schematic diagram.

Figure 10 is a wherein stereoscopic schematic diagram for third embodiment of the invention light projection device.

Figure 11 is an other stereoscopic schematic diagram for third embodiment of the invention light projection device.

Figure 12 is the side elevational cross-section schematic diagram of the XII-XII hatchings of Figure 11.

Figure 13 be second embodiment the first light emitting structure and the second light emitting structure respectively to the second cambered surface catoptric arrangement and Light type schematic diagram caused by first cambered surface catoptric arrangement.

Figure 14 is a wherein stereoscopic schematic diagram for fourth embodiment of the invention light projection device.

Figure 15 is an other stereoscopic schematic diagram for fourth embodiment of the invention light projection device.

Figure 16 is the schematic rear view of fourth embodiment of the invention light projection device.

Figure 17 is the diagrammatic cross-section of the XVII-XVII hatchings of Figure 16.

Figure 18 is the diagrammatic cross-section of the XVIII-XVIII hatchings of Figure 16.

Figure 19 is a wherein stereoscopic schematic diagram for fifth embodiment of the invention light projection device.

Figure 20 is an other stereoscopic schematic diagram for fifth embodiment of the invention light projection device.

Specific implementation mode

It is to illustrate the presently disclosed embodiment party in relation to " light projection device " by specific specific example below Formula, those skilled in the art can understand advantages of the present invention and effect by content disclosed in this specification.The present invention can pass through Other different specific embodiments are implemented or are applied, and the various details in this specification may be based on different viewpoints and answer With, carry out without departing from the spirit of the present invention it is various modification and change.It is said in addition, the attached drawing of the present invention is only simple signal It is bright, not according to the description of actual size, stated.The related skill of the present invention will be explained in further detail in the following embodiments and the accompanying drawings Art content, but disclosure of that is not to limit the technical scope of the present invention.

It should be understood that although various elements or signal etc. may be described using term first, second, third, etc. herein, But these elements or signal are not answered limited by these terms.These terms are distinguishing an element and another element, Huo Zheyi Signal and another signal.In addition, as used herein, term "or" may list project depending on actual conditions including associated Any of or multiple all combinations.

First embodiment

First, shown in please referring to Fig.1 to Fig.3, Fig. 1 and Fig. 2 are respectively first embodiment of the invention light projection device U Stereoscopic schematic diagram, Fig. 3 are the side elevational cross-section schematic diagram of first embodiment of the invention light projection device U.The present invention provides a kind of Light projection device U a comprising lens unit 1, a reflector element 2 and a luminescence unit 3.It should be noted that for ease of Understand the present invention, main element is only presented in attached drawing, while reflector element 2 is mainly illustrated with a cambered surface, affiliated technology Field personnel when the structure composition that can be appreciated that existing light projection device U, and understand the reflector element 2 presented in attached drawing and are Reflecting surface in actual product structure.Then, it is preferable that reflector element 2 includes that at least two catoptric arrangements or multiple reflections are tied Structure, first embodiment will be illustrated with two catoptric arrangements (the first catoptric arrangement 21 and the second catoptric arrangement 22), however, In other embodiment (such as reflector element 2 may include three or more reflection knots in fourth embodiment and the 5th embodiment Structure).Furthermore it is preferred that luminescence unit 3 also includes at least two light emitting structures or multiple light emitting structures, following first embodiment It will be illustrated with two light emitting structures (the first light emitting structure 31 and the second light emitting structure 32).For example, the first reflection knot Structure 21 and the second catoptric arrangement 22 can be made of the curved surface of multiple and different curvature or single curved surface respectively, such as can be by with ellipse Curved surface or curvature based on circle form catoptric arrangement.In addition, the first light emitting structure 31 and the second light emitting structure 32 can be set respectively It sets in a circuit board (non-label in figure), such as printed circuit board (Printed circuit board, PCB) or metal electricity On road plate (Metal Core PCB, MCPCB), invention is not limited thereto.Furthermore, it is understood that the first light emitting structure 31 and second Light emitting structure 32 can be semiconductor electronic component, for example, light-emitting diode (Light-emitting diode, LED), swash Light light-emitting diode or laser diode (Laser Diode, LD), so invention is not limited thereto.Furthermore it is preferred that the One light emitting structure 31 and the second light emitting structure 32 can be can generate surface source luminescence element, meanwhile, light-emitting diode shines Face size can be 2 millimeters * 2 millimeters hereinafter, so invention is not limited thereto.In other words, in other embodiments, shine The light-emitting surface size of diode can be 1.06 millimeters * 1.06 millimeters or 0.75 millimeter * 0.75 millimeter.It is worth explanation It is that light projection device U provided by the present invention is preferably applicable to the far lamp or far lamp auxiliary lamp of auto bulb, in addition, Since the light focusing capability efficiency of light projection device U provided by the present invention is good, in other embodiments, Can be applied to searchlight etc. need generate the product of light focusing effect.

Hold above-mentioned, shown in Fig. 1 to Fig. 3, it is burnt that there is lens unit 1 a lens focus 1a and one to pass through lens The lens axis A of point 1a, lens axis A by a datum plane S and can be parallel to datum plane S, that is to say, that lens axis A can coincide with datum plane S.Furthermore, it is understood that datum plane S has one first lateral surface S1 and one relative to the first outside The second lateral surface S2 of face S1, that is to say, that the two opposite tables of plane S on the basis of the first lateral surface S1 and the second lateral surface S2 Face.It should be specified, the datum plane S in the present invention is a virtual plane, and datum plane S is primarily to further Lens unit 1, reflector element 2 and luminescence unit 3 is defined to be defined.For example, datum plane S can be with horizontal plane (figure In be not shown) in arranged in parallel or be vertically arranged, however, in other embodiments, datum plane S can also be with level Face is inclined to set, system that invention is not limited thereto.

Hold above-mentioned, shown in Fig. 1 to Fig. 3, reflector element 2 may include one first catoptric arrangement 21 and one second Catoptric arrangement 22, for the embodiment of the present invention, the global shape and feature of the second catoptric arrangement 22 can be with the first catoptric arrangements 21 is identical, and so invention is not limited thereto.Therefore, when the global shape and spy of the first catoptric arrangement 21 and the second catoptric arrangement 22 When levying mutually the same, the first catoptric arrangement 21 and the second catoptric arrangement 22 generally can using lens axis A as geometric center and It is distributed in isogonism.Furthermore, it is understood that the first catoptric arrangement 21 has one to be located at neighbouring first lateral surface S1 and positioned at the first outside The one second focus 21b of the first focus 21a of the first focus 21a and corresponding first catoptric arrangement 21 other than the S1 of face.Change sentence It talks about, if using Fig. 3 as explanation, the first focus 21a of the first catoptric arrangement 21 can be positioned at the first outside of datum plane S Face S1 or more.In addition, the second catoptric arrangement 22 has one to be located at neighbouring second lateral surface S2 and other than the second lateral surface S2 The first focus 22a and one correspond to the second catoptric arrangement 22 the first focus 22a the second focus 22b.In other words, if Using Fig. 3 as explanation, the first focus 22a of the second catoptric arrangement 22 can be located at the second lateral surface S2 or less of datum plane S. In addition, the first catoptric arrangement 21 can have there are three the point of inflexion (non-label in figure), and the second catoptric arrangement 22 can have that there are three anti- Bent point (non-label in figure).What be should be specified is, it is preferable that for the embodiment of the present invention, the first catoptric arrangement 21 and Can not have "cut-off"line shield (cut-off plate) between two catoptric arrangements 22 or other are projected to change light The structure (such as wedge structure) of light type caused by device U.

Whereby, as shown in figure 3, the first catoptric arrangement 21 and the second catoptric arrangement 22 are located at the two-phase of datum plane S It tosses about side.Preferably, the second focus 21b of the first catoptric arrangement 21, which can be located on lens axis A, is either adjacent to lens light Axis A, the second focus 22b of the second catoptric arrangement 22, which can be located on lens axis A, is either adjacent to lens axis A.More preferably Ground, the second focus 21b of the first catoptric arrangement 21, the second focus 22b of the second catoptric arrangement 22 and lens focus 1a three It can overlap.It is noted that the first catoptric arrangement 21 and the second catoptric arrangement 22 can be interconnected with one another, and lens Optical axis A and datum plane S can pass through the junction between the first catoptric arrangement 21 and the second catoptric arrangement 22.

Hold it is above-mentioned, shown in Fig. 3, luminescence unit 3 may include one first light emitting structure 31 and one second shine Structure 32, the first light emitting structure 31 can correspond to the first focus 21a of the first catoptric arrangement 21, and the first light emitting structure 31 can be arranged In neighbouring first lateral surface S1 and the position other than the first lateral surface S1.In addition, the second light emitting structure 32 can correspond to second First focus 22a of catoptric arrangement 22, and the second light emitting structure 32 may be disposed at neighbouring second lateral surface S2 and outside second Position other than the S2 of side.In other words, if using Fig. 3 as explanation, the first light emitting structure 31 can be positioned at datum plane S's First lateral surface S1 or more, and the second light emitting structure 32 can be located at the second lateral surface S2 or less of datum plane S.Whereby, One light emitting structure 31 and the second light emitting structure 32 are located at two opposite lateral sides of datum plane S.Preferably, the first light emitting structure 31 or first first light-emitting surface 311 of light emitting structure 31 can be adjacent to the first focus 21a of the first catoptric arrangement 21 or directly set It sets on the first focus 21a of the first catoptric arrangement 21, and the second of the second light emitting structure 32 or the second light emitting structure 32 shines Face 321 can be adjacent to the first focus 22a of the second catoptric arrangement 22 or be set up directly on the first focus of the second catoptric arrangement 22 On 22a.The present invention will be arranged with the first light emitting structure 31 on the first focus 21a of the first catoptric arrangement 21, and second shines The embodiment that structure 32 is arranged on the first focus 22a of the second catoptric arrangement 22 illustrates.

Hold above-mentioned, shown in Fig. 3, one first throw light P11 caused by the first light emitting structure 31 can direction The direction of first catoptric arrangement 21 and the direction projection of datum plane S, and one second throwing caused by the second light emitting structure 32 Penetrating light P21 can be towards the direction of the second catoptric arrangement 22 and the projection of the direction of datum plane S.In other words, with the present invention For embodiment, caused by the first throw light P11 and the second light emitting structure 32 caused by the first light emitting structure 31 It projects and is projected towards the direction of rear ramp in the direction that two throw light P21 are directed towards lens axis A.Furthermore, it is understood that first Light emitting structure 31 can have one first light-emitting surface 311, and the first throw light P11 can be along the one first of the first light-emitting surface 311 Normal direction D1 is projected towards the direction of the first catoptric arrangement 21 and the direction of datum plane S.That is, the first normal side Extend at the rear obliquely downward that lens unit 1 is directed towards to D1.In addition, the second light emitting structure 32 can have one second light-emitting surface 321, and one second throw light P21 caused by the second light emitting structure 32 can be along one second normal of the second light-emitting surface 321 Direction D2 is projected towards the direction of the second catoptric arrangement 22 and the direction of datum plane S.That is, the second normal direction D2 Extend at the oblique upper rear for being directed towards lens unit 1.

Whereby, as shown in figure 3, the first throw light P11 can be formed one and be passed through by the reflection of the first catoptric arrangement 21 The first reflection light R11 of second focus 21b of the first catoptric arrangement 21, and the second throw light P21 is tied by the second reflection The reflection of structure 22 can form a second reflection light R21 by the second focus 22b of the second catoptric arrangement 22.

Then, referring back to Fig. 3 and together as shown in fig.4, lens unit 1 can have a receipts light cone face 11 (or can claim Receipts light cone angle gamma, typically less than 90 degree).For the embodiment of the present invention, the angle for receiving light cone face 11 can be between 50 degree to 90 Between degree, and the size of the lens diameter of lens unit 1 can between 30 millimeters to 100 millimeters, so the present invention not as Limit.It should be specified, lens diameter defined here, refer to the circular curve of lens light-emitting surface towards the side of incidence surface To natural extension, and be formed by the diameter dimension size of diameter with the fictitious outline of incidence surface handing-over, in other words, although The lens light-emitting surface of lens unit 1 in attached drawing of the present invention has the circular curve for extending fully into incidence surface, however, at other Embodiment in, lens unit 1 can be cut by finishing, to meet the position size to be arranged, and be cut out by finishing Lens unit 1 after cutting still has the lens diameter between 30 millimeters to 100 millimeters.In addition, it should be noted that, receive light cone The incidence surface that 11 referred to lens focus 1a of face extends to lens unit 1 is formed by cone-shaped range.That is, each Lens unit 1 can have the different ranges for receiving light cone face 11 with design characteristics, such as the range that the circular cone conical surface is surrounded.Into For one step, for purposes of illustration only, below to receive one first extended segment 111 and one second extended segment possessed by light cone face 11 112 illustrate.First extended segment 111 and the second extended segment 112 are the extension line segment extended by receipts light cone face 11, and the It the extending direction of one extended segment 111 and the second extended segment 112 and extends on the incidence surface of lens unit 1 and receives light cone face 11 Direction is opposite.In addition, the first extended segment 111 can correspond to the first focus 21a of the first catoptric arrangement 21, the second extended segment 112 can First focus 22a of corresponding second catoptric arrangement 22.For example, the first focus 21a of the first catoptric arrangement 21 can be adjacent to First extended segment 111 is arranged, and the first focus 22a of the second catoptric arrangement 22 can be adjacent to the setting of the second extended segment 112.It is preferred that Ground, the first focus 21a of the first catoptric arrangement 21 and the first focus 22a of the second catoptric arrangement 22 are all located at the first extended segment 111 and second between the range that is surrounded of extended segment 112, or is that the first extended segment 111 can be by the first catoptric arrangement 21 the first focus 21a and the second extended segment 112 can by the first focus 22a of the second catoptric arrangement 22, so the present invention not with This is limited.Furthermore, it is understood that preferably, for the embodiment of the present invention, the first light-emitting surface 311 can be flat with the first extended segment 111 Row, the second light-emitting surface 321 can be parallel with the second extended segment 112.It is highly preferred that the first light-emitting surface 311 can be with the first extended segment 111 It is parallel and trim, and the first extended segment 111 can be by the first focus 21a of the first catoptric arrangement 21, the second light-emitting surface 321 can be with Second extended segment 112 is parallel and trims, and the second extended segment 112 can by the first focus 22a of the second catoptric arrangement 22, so this Invention is not to be limited.In other embodiments, the first light-emitting surface 311 can with the first extended segment 111 be in non-parallel setting, second Light-emitting surface 321 can be in non-parallel setting with the second extended segment 112, however, the first normal direction D1 of the first light-emitting surface 311 is still It is directed towards the direction of the first catoptric arrangement 21 and the direction projection of datum plane S, and the second normal side of the second light-emitting surface 321 It is still to be projected towards the direction of the second catoptric arrangement 22 and the direction of datum plane S to D2.

Then, referring back to shown in Fig. 3 and Fig. 4, light projection device U can also further comprise a first axle T1 and One second axis T2, first axle T1 can pass through the first focus 21a and lens axis A of the first catoptric arrangement 21, second axis T2 can pass through the first focus 22a and lens axis A of the second catoptric arrangement 22.Furthermore, it is understood that first axle T1 is generally vertically In the first extended segment 111, second axis T2 is generally perpendicular to the second extended segment 112.For example, if with the first light-emitting surface 311 and first extended segment 111 be arranged in parallel and the second light-emitting surface 321 and 112 embodiment disposed in parallel of the second extended segment are come It says, first axle T1 is substantially identical as the first normal direction D1, and second axis T2 is substantially identical as the second normal direction D2, so Invention is not limited thereto.

Hold it is above-mentioned, shown in Fig. 1 and Fig. 4, reflector element 2 still further comprise one be located at the first catoptric arrangement 21 With the reflecting surface 2S on the second catoptric arrangement 22, and the first throw light P11 and the second throw light P21 are directed towards reflection Surface 2S is projected.Then, there is a cross-point J0 between lens axis A and the reflecting surface, for the embodiment of the present invention, The position of cross-point J0 also is located between the first catoptric arrangement 21 and the second catoptric arrangement 22.Furthermore, it is understood that as shown in figure 4, There can be one first intersection point J1 between first axle T1 and lens axis A, have one the between second axis T2 and lens axis A Two intersection point J2, cross-point J0 are to the preset distance L0 between lens focus 1a less than the first intersection point J1 between lens focus 1a One first distance L1, cross-point J0 to the preset distance L0 between lens focus 1a be less than the second intersection point J2 to lens focus 1a Between a second distance L2.In other words, the position of the first intersection point J1 and the second intersection point J2 can be fallen at the rear of cross-point J0.

Hold it is above-mentioned, shown in Fig. 4, for purposes of illustration only, do not indicated in Fig. 4 the first throw light P11, second throw Penetrate light P21, the first reflection light R11 and the second reflection light R21.Specifically, cross-point J0 and the first catoptric arrangement Can have one first predetermined axial line E1, the first focus of cross-point J0 and the second catoptric arrangement 22 between 21 the first focus 21a There is one second predetermined axial line E2 between 22a.It can be with one between 7 degree to 31 between first predetermined axial line E1 and first axle T1 The first predetermined angle theta 1 between degree, it is preferable that the first predetermined angle theta 1 can be between 10.5 degree to 27.5 degree, more preferably Ground, the first predetermined angle theta 1 can have between 13.5 degree to 24.5 degree between the second predetermined axial line E2 and second axis T2 There is the second predetermined angle theta 2 between 7 degree to 31 degree of Jie, it is preferable that the second predetermined angle theta 2 can be between 10.5 degree to 27.5 degree Between, it is highly preferred that the second predetermined angle theta 2 can be between 13.5 degree to 24.5 degree.In addition, cross-point J0 and the first intersection point The distance between J1 can be more than 7 millimeters (millimeter, mm), and the distance between cross-point J0 and the second intersection point J2 can be more than 7 millimeters.It should be noted that the definition of above-mentioned first predetermined axial line E1, the second predetermined axial line E2 are mainly to illustrate the first reflection The position of first focus 21a of structure 21 and the first focus 22a of the second catoptric arrangement 22.

Then, referring back to shown in Fig. 4, one first tangent line G1 can be by cross-point J0 and anti-with the first catoptric arrangement 21 It is tangent to penetrate face (being located at the reflecting surface 2S on the first catoptric arrangement 21), and can have between the first tangent line G1 and lens axis A The first corner cut α 1 between 47 degree to 64.5 degree, it is preferable that the first corner cut α 1 can be more excellent between 50 degree to 61.5 degree Selection of land, the first corner cut α 1 can be between 53 degree to 58.5 degree.One second tangent line G2 can be reflected by cross-point J0 and with second The reflecting surface (being located at the reflecting surface 2S on the second catoptric arrangement 22) of structure 22 is tangent, and the second tangent line G2 and lens axis A Between can have the second corner cut α 2 between 47 degree to 64.5 degree, it is preferable that the second corner cut α 2 can be between 50 degree to 61.5 Between degree, it is highly preferred that the second corner cut α 2 can be between 53 degree to 58.5 degree.

Then, referring back to shown in Fig. 4, the first focus 21a of the first catoptric arrangement 21 and the of the second catoptric arrangement 22 Wire definition between one focus 22a is a default axis PA, and default axis PA and lens axis A can substantially be vertical setting, It is either default that there is a predetermined angle β between 80 degree to 100 degree between axis PA and lens axis A, it is preferable that pre- If angle beta can be between 85 degree to 95 degree, it is highly preferred that predetermined angle β can be 90 degree.In other words, when the second reflection knot When the global shape and feature identical as the first catoptric arrangement 21 of structure 22, presetting axis PA and lens axis A can be substantially perpendicular Setting, therefore, for light type caused by light projection device U, positioned at the light type of horizontal axis HH or more and positioned at water Flat axis HH light type below can be substantially the same and symmetrically.However, in other embodiments, the second catoptric arrangement 22 When global shape and feature different from the first catoptric arrangement 21, presetting axis PA can have between lens axis A between 80 degree Predetermined angle β between to 100 degree, and default axis PA is made to favour lens axis A (not shown)s.Further come It says, a crosspoint M can be had by presetting between axis PA and lens axis A, cross-point J0 can be located at the first intersection point J1 and crosspoint M Between.In addition, cross-point J0 can be between the second intersection point J2 and crosspoint M.

Then, referring back to shown in Fig. 1, Fig. 3 and Fig. 4, the first catoptric arrangement 21 has one to be adjacent to the first catoptric arrangement The vertex 21e of 21 the first focus 21a, the first focus 21a of the catoptric arrangements 21 of vertex 21e to first of the first catoptric arrangement 21 Between have one first short distance W11, the second focus of the first focus 21a to the first catoptric arrangement 21 of the first catoptric arrangement 21 There is one first long range W12 between 21b.For the embodiment of the present invention, the first long range W12 can be more than the first short distance W11, the ratio between the first long range W12 and the first short distance W11 can be between 1.8 to 3.8, it is preferable that first length away from It can be between 2.1 to 3.5, it is highly preferred that the first long range W12 and first from the ratio between W12 and the first short distance W11 Ratio between short distance W11 can be between 2.42 to 3.2, and so invention is not limited thereto.

Hold it is above-mentioned, shown in Fig. 3 and Fig. 4, furthermore, it is understood that the second catoptric arrangement 22, which has, one is adjacent to second The vertex 22e of first focus 22a of catoptric arrangement 22, the of the catoptric arrangements 22 of vertex 22e to second of the second catoptric arrangement 22 There is one second short distance W21, the first focus 22a to the second catoptric arrangement 22 of the second catoptric arrangement 22 between one focus 22a The second focus 22b between have one second long range W22.For the embodiment of the present invention, the second long range W22 is more than second The ratio of short distance W21, the second long range W22 and the second short distance W21 can be between 1.8 to 3.8, it is preferable that the second length Ratio between distance W22 and the second short distance W21 can be between 2.1 to 3.5, it is highly preferred that the second long range W22 and Ratio between two short distance W21 can be between 2.42 to 3.2, and so invention is not limited thereto.

Then, referring back to shown in Fig. 1 and Fig. 3, the first catoptric arrangement 21 can have a first end point 21c, one relative to The the second endpoint 21d and a vertex 21e of the first end point 21c of first catoptric arrangement 21.Furthermore, it is understood that the first catoptric arrangement The intersection point of 21 first end point 21c and the second endpoint 21d between the first catoptric arrangement 21 and datum plane S.In addition, first is anti- Penetrating has a first end point distance N1 between the second endpoint 21d of the catoptric arrangements 21 of first end point 21c to first of structure 21, the The vertex 21e of one catoptric arrangement 21 between lens axis A have one first vertical range V1.For example, first end point away from Ratio from N1 more than the first vertical range V1, first end point distance N1 and the first vertical range V1 is between 0.7 to 1.8. Preferably, the ratio of first end point distance N1 and the first vertical range V1 can be between 0.9 to 1.55, it is highly preferred that first The ratio of end-point distances N1 and the first vertical range V1 can be between 1.19 to 1.32, and so invention is not limited thereto.

Hold it is above-mentioned, shown in Fig. 1 and Fig. 3, the second catoptric arrangement 22 have a first end point 22c, one relative to The the second endpoint 22d and a vertex 22e of the first end point 22c of second catoptric arrangement 22.Furthermore, it is understood that the second catoptric arrangement The intersection point of 22 first end point 22c and the second endpoint 22d between the second catoptric arrangement 22 and datum plane S.In addition, second is anti- Penetrating has one second end-point distances N2 between the second endpoint 22d of the catoptric arrangements 22 of first end point 22c to second of structure 22, the The vertex 22e of two catoptric arrangements 22 between lens axis A have one second vertical range V2.For example, the second endpoint away from From N2 more than the second vertical range V2, the second end-point distances N2 and the second vertical range V2 ratio can between 0.7 to 1.8 it Between.Preferably, the ratio of the second end-point distances N2 and the second vertical range V2 can be between 0.9 to 1.55, it is highly preferred that The ratio of two end-point distances N2 and the second vertical range V2 can be between 1.19 to 1.32, and so invention is not limited thereto.

Then, it please refers to shown in Fig. 5, Fig. 5 is that the first light emitting structure 31 and the second light emitting structure 32 are reflected first respectively Light type perspective view caused by structure 21 and the second catoptric arrangement 22.Whereby, anti-by the first catoptric arrangement 21 and second The reflection of structure 22 is penetrated, light type can be on horizontal axis HH and between ± 5 degree of range, together caused by luminescence unit 3 When, on vertical axis VV and between ± 5 degree of range.Preferably, light type caused by luminescence unit 3 can be in trunnion axis On line HH and between ± 3 degree of range, meanwhile, on vertical axis VV and between ± 3 degree of range.It is worth explanation , light intensity most strength by the cross-point between horizontal axis HH and vertical axis VV and positioned at ± 0.75 degree range it Between.

Second embodiment

First, it please refers to shown in Fig. 6 and Fig. 7, Fig. 6 and Fig. 7 are respectively second embodiment of the invention light projection device U Stereoscopic schematic diagram.By the comparison of Fig. 6 and Fig. 7 and Fig. 1 and Fig. 2 it is found that second embodiment of the invention is maximum with first embodiment The difference is that：The reflector element 2 of second embodiment still further comprises an extension catoptric arrangement 27.Extending catoptric arrangement 27 can connect It is connected to the first catoptric arrangement 21 and the second catoptric arrangement 22.It should be noted that, the first catoptric arrangement 21, the second catoptric arrangement 22, The features such as the first light emitting structure 31 and the second light emitting structure 32 and aforementioned first embodiment are similar, hold repeating no more herein.

Then, referring back to shown in Fig. 6 and Fig. 7, extension catoptric arrangement 27 may include that one is connected to the first catoptric arrangement 21 First extension reflecting part 271 and one be connected to the second catoptric arrangement 22 second extend reflecting part 272.Datum plane S can Between first extends the extension reflecting part 272 of reflecting part 271 and second, the first extension reflecting part 271 may be disposed at neighbouring First lateral surface S1 and the position other than the first lateral surface S1, the second extension reflecting part 272 may be disposed at outside neighbouring second Side S2 and the position other than the second lateral surface S2.In addition, first extends the extension reflecting part 272 of reflecting part 271 and second It can be made up of curved surface based on ellipse or curvature.Preferably, the curvature of curved surface and first of the first extension reflecting part 271 The curvature of curved surface of catoptric arrangement 21 is identical, and the curved surface of the curvature of curved surface and the second catoptric arrangement 22 of the second extension reflecting part 272 Curvature is identical, and so invention is not limited thereto.In other words, the first extension reflecting part 271 is the ellipsoid of the first catoptric arrangement 21 The extension of reflecting surface, the second extension reflecting part 272 are the extensions of the ellipsoid reflecting surface of the second catoptric arrangement 22.

It holds above-mentioned, please refers to shown in Fig. 8 and Fig. 9, Fig. 8 and Fig. 9 are that second embodiment of the invention extends catoptric arrangement and the The stereoscopic schematic diagram of one catoptric arrangement and the second catoptric arrangement position distribution.To further illustrate the setting for extending catoptric arrangement 27 It is further illustrated with receiving light cone face 11 and a default conical surface PC in position, Fig. 8 and Fig. 9.Default conical surface PC is one opposite And it is symmetrical with the imaginary cone for receiving light cone face 11.Specifically, the first catoptric arrangement 21 and the second catoptric arrangement 22 are located at pre- If in the range of conical surface PC.That is, the size and location of the first catoptric arrangement 21 and the second catoptric arrangement 22 are to pass through The receipts light cone face 11 of lens unit 1 and define.In addition, it is the region being located at other than default conical surface PC to extend catoptric arrangement 27 then. By extending the setting of catoptric arrangement 27, the assembling convenience of light projection device U entirety can be promoted and promoting luminescence unit 3 Light usability.

3rd embodiment

First, 0 is please referred to Fig.1 to shown in Figure 12, and Figure 10 and Figure 11 are respectively third embodiment of the invention light projection dress The stereoscopic schematic diagram of U is set, Figure 12 is the side elevational cross-section schematic diagram of third embodiment of the invention light projection device U.By Figure 10 and The comparison of Figure 11 and Fig. 1 and Fig. 2 it is found that 3rd embodiment it is maximum with first embodiment the difference is that：3rd embodiment is carried The light projection device U of confession still further comprises one first cambered surface catoptric arrangement 25 and one second cambered surface catoptric arrangement 26.The One cambered surface catoptric arrangement 25 and one second cambered surface catoptric arrangement 26 can be used for increasing the first light emitting structure 31 and the second light-emitting junction The recycling property of light caused by structure 32.It should be noted that the first catoptric arrangement 21,22 first light-emitting junction of the second catoptric arrangement The features such as structure 31 and the second light emitting structure 32 and aforementioned first embodiment are similar, hold repeating no more herein.

Specifically, referring back to shown in Figure 10 to Figure 12, the first cambered surface catoptric arrangement 25 and the reflection of the second cambered surface are tied Structure 26 may connect to the first catoptric arrangement 21 and the second catoptric arrangement 22, or make the first cambered surface catoptric arrangement 25 and the Two cambered surface catoptric arrangements 26 are not attached to the first catoptric arrangement 21 and the second catoptric arrangement 22.In addition, it should be noted that, in attached drawing In order to highlight the shape of the first catoptric arrangement 21 and the second catoptric arrangement 22, therefore, by the first cambered surface catoptric arrangement 25 and 22 discrete representation of second cambered surface catoptric arrangement 26 and the first catoptric arrangement 21 and the second catoptric arrangement.Furthermore, it is understood that the first arc Face catoptric arrangement 25 may be disposed at neighbouring first lateral surface S1 and the position other than the first lateral surface S1, the reflection of the second cambered surface Structure 26 may be disposed at neighbouring second lateral surface S2 and the position other than the second lateral surface S2.First cambered surface catoptric arrangement 25 And the 26 main effect of the second cambered surface catoptric arrangement is to further increase the first light emitting structure 31 and the second light emitting structure 32 The recycling property of generated light, although most of anti-by the first cambered surface catoptric arrangement 25 and the second cambered surface catoptric arrangement 26 Light does not project in lens unit 1 caused by after penetrating, still, anti-by the first cambered surface catoptric arrangement 25 and the second cambered surface Generated light after structure 26 reflects is penetrated to remain able to further be utilized.

Preferably, as shown in figure 12, for the embodiment of the present invention, the first cambered surface catoptric arrangement 25 and the reflection of the second cambered surface Structure 26 can be the catoptric arrangement that is made of parabolic surface or curvature, therefore, project the first cambered surface catoptric arrangement 25 and Light on second cambered surface catoptric arrangement 26 can be respectively parallel to the first cambered surface catoptric arrangement 25 optical axis (non-label in figure, Optical axis position is overlapped with lens axis A) and the second cambered surface catoptric arrangement 26 optical axis (non-label, optical axis position and lens in figure Optical axis A is overlapped) and project and go out.However, should be specified, in other embodiments, the first cambered surface catoptric arrangement 25 and Second cambered surface catoptric arrangement 26 or the catoptric arrangement formed with non-parabolic curvature.In other words, as long as the first arc Face catoptric arrangement 25 and the second cambered surface catoptric arrangement 26 can be respectively received the second light emitting structure 32 and the first light emitting structure 31 Light can be further utilized.

Hold it is above-mentioned, referring back to Figure 12, when the first cambered surface catoptric arrangement 25 and the second cambered surface catoptric arrangement 26 are that parabolic is bent The catoptric arrangement that face or curvature are formed, the first cambered surface catoptric arrangement 25 can have a focus 25a, the second cambered surface catoptric arrangement 26 Can have a focus 26a, the first light emitting structure 31 to can correspond to the focus 26a of the second cambered surface catoptric arrangement 26, the second light-emitting junction Structure 32 can correspond to the focus 25a of the first cambered surface catoptric arrangement 25.Specifically, the first light emitting structure 31 is adjacent to the second cambered surface The focus 26a of catoptric arrangement 26 is set up directly on the focus 26a of the second cambered surface catoptric arrangement 26, and the second light emitting structure 32 It is adjacent to the focus 25a of the first cambered surface catoptric arrangement 25 or is set up directly on the focus 25a of the first cambered surface catoptric arrangement 25.This Invention will be arranged with the first light emitting structure 31 on the focus 26a of the second cambered surface catoptric arrangement 26, and the second light emitting structure 32 is set The embodiment set on the focus 25a of the first cambered surface catoptric arrangement 25 illustrates.In other words, the first cambered surface catoptric arrangement 25 focus 25a can be overlapped with the first focus 22a of the second catoptric arrangement 22, and the focus of the second cambered surface catoptric arrangement 26 26a can be overlapped with the first focus 21a of the first catoptric arrangement 21.

Whereby, as shown in figure 12, one first injection light P12 can be towards the second cambered surface caused by the first light emitting structure 31 The direction of catoptric arrangement 26 projects, and one second injection light P22 can be anti-towards the first cambered surface caused by the second light emitting structure 32 Penetrate the direction projection of structure 25.Then, the first injection light P12 can be by the reflection of the second cambered surface catoptric arrangement 26, to be formed One first irradiation light R12, and second project light P22 can be by the reflection of the first cambered surface catoptric arrangement 25, to form one the Two irradiation light R22.In addition, should be specified, the light on the first catoptric arrangement 21 and the second catoptric arrangement 22 is projected Line is similar with aforementioned first embodiment, holds repeating no more herein.In other words, the first cambered surface illustrated in 3rd embodiment is anti- It penetrates structure 25 and the second cambered surface catoptric arrangement 26 can be applied in each embodiment.

It please refers to Fig.1 shown in 3, Figure 13 is that the first light emitting structure 31 and the second light emitting structure 32 respectively reflect the second cambered surface Light type schematic diagram caused by structure 26 and the first cambered surface catoptric arrangement 25.It should be specified, in this light type schematic diagram It is to be illustrated for parabolic surface with the first cambered surface catoptric arrangement 25 and the second cambered surface catoptric arrangement 26.Due to projecting parabolic Light on face can form directional light by paraboloidal reflection, whereby, the light projection device U that 3rd embodiment is provided Be preferably applicable to searchlight etc. need long range light irradiation product.

Fourth embodiment

First, 4 are please referred to Fig.1 to shown in Figure 17, Figure 14 and Figure 15 are respectively fourth embodiment of the invention light projection dress Set the stereoscopic schematic diagram of U, Figure 17 and Figure 18 are respectively that the side view of Figure 16 is become a full member diagrammatic cross-section.By Figure 14 and Figure 15 and Fig. 1 and The comparison of Fig. 2 it is found that fourth embodiment it is maximum with first embodiment the difference is that：The light projection that fourth embodiment is provided Device U still further comprises a third catoptric arrangement 23, and luminescence unit 3 still further comprises a third light emitting structure 33.It lifts For example, for third embodiment of the invention, the first catoptric arrangement 21, the second catoptric arrangement 22 and third catoptric arrangement 23 Global shape and feature can be mutually the same, therefore, the first catoptric arrangement 21, the second catoptric arrangement 22 and third catoptric arrangement 23 generally can be in isogonism distribution using lens axis A as geometric center.Meanwhile first light emitting structure 31, the second light-emitting junction Structure 32 and third light emitting structure 33 generally can also lens axis A as geometric center be in isogonism distribution.In addition, first is anti- It penetrates structure 21, the second catoptric arrangement 22 and third catoptric arrangement 23 to be interconnected with one another, and lens axis A passes through the first reflection The junction of structure 21, the second catoptric arrangement 22 and third catoptric arrangement 23.

In addition, referring back to shown in Figure 14 to Figure 18, it should be specified, fourth embodiment is maximum with first embodiment Difference be only that in fourth embodiment and further increase third catoptric arrangement 23 and third light emitting structure 33, and the first reflection Structure 21, the second catoptric arrangement 22 and third catoptric arrangement 23 generally can be in using lens axis A as geometric center Angle is distributed.Therefore, the first catoptric arrangement 21, the second catoptric arrangement 22, the first light emitting structure 31 and second light emitting structure 32 etc. Feature is all similar with aforementioned first embodiment.Meanwhile the first reflection light R11, the second reflection light R21, receiving light cone face 11, the The definition such as one axis T1, second axis T2, the first predetermined axial line E1 and the second predetermined axial line E2 are also all and aforementioned first real It is similar to apply example, holds repeating no more herein.

It holds above-mentioned, shown in Figure 14 to Figure 18, is said below only for the part different from first embodiment It is bright.Whereby, as shown in figure 17, the first focus 21a of the first catoptric arrangement 21, the second catoptric arrangement 22 the first focus 22a with And the planes that are constituted of the first focus 23a of third catoptric arrangement 23 may be defined as a preset plane PS, preset plane PS can be with There is a predetermined angle β between 80 degree to 100 degree, it is preferable that predetermined angle β can be between 85 degree between datum plane S To between 95 degree, it is highly preferred that predetermined angle β can be 90 degree.For the embodiment of the present invention, preset plane PS can be flat with benchmark Face S is substantially vertical setting, and so invention is not limited thereto.In addition, should be specified, along the XVII-XVII of Figure 16 The diagrammatic cross-section of becoming a full member (as shown in figure 17) of hatching line, which is formed by accompanying drawing content, to be substantially the same with Fig. 3, hold herein no longer It repeats.

Then, as shown in figure 18, specifically, third catoptric arrangement 23 has one to be located at neighbouring first lateral surface S1 and position The one second of the first focus 23a of the first focus 23a and corresponding third catoptric arrangement 23 other than the first lateral surface S1 is burnt Point 23b.In addition, third light emitting structure 33 can correspond to the first focus 23a of third catoptric arrangement 23, and third light emitting structure 33 can It is positioned adjacent to the first lateral surface S1 and the position other than the first lateral surface S1.Meanwhile produced by third light emitting structure 33 A third throw light P31 can be projected towards the direction of third catoptric arrangement 23 and the direction of datum plane S.Preferably, Second focus 21b of the first catoptric arrangement 21, which can be located on lens axis A, is either adjacent to lens axis A, the second reflection knot Second focus of structure 22, which can be located on lens axis A, is either adjacent to lens axis A, the second focus of third catoptric arrangement 23 23b is located on lens axis A or is adjacent to lens axis A.Whereby, the second focus 21b of the first catoptric arrangement 21, second Second focus 22b of catoptric arrangement 22, the second focus 23b of third catoptric arrangement 23 and lens focus 1a can phase mutual respects It closes or the second focus 21b of the first catoptric arrangement 21, the second focus 22b of the second catoptric arrangement 22 and third reflects The line of second focus 23b of structure 23 can form a virtual plane.

Hold it is above-mentioned, shown in Figure 18, third light emitting structure 33 have a third light-emitting surface 331, and third project Light P31 can be along a third normal direction D3 of third light-emitting surface 331 towards the direction of third catoptric arrangement 23 and benchmark The direction of plane S projects.Then, third throw light P31 can form one by by the reflection of third catoptric arrangement 23 Third the reflection light R31, third throw light P31 of second focus 23b of three catoptric arrangements 23 passes through third catoptric arrangement 23 Reflection, a third reflection light R31 by the second focus 23b of third catoptric arrangement 23 can be formed.

Hold above-mentioned, shown in Figure 18, light projection device U can also further comprise a third axis T3, third Axis T3 can pass through the first focus 23a and lens axis A of third catoptric arrangement 23.Meanwhile the one of lens unit 1 receives light cone face 11 still further comprise a third extended segment 113, and third extended segment 113 can correspond to the first focus 23a of third catoptric arrangement 23, And third axis T3 can be generally perpendicular to third extended segment 113.Furthermore, it is understood that as shown in FIG. 17 and 18, the first reflection knot The first focus 23a of first focus 21a of structure 21, the first focus 22a of the second catoptric arrangement 22 and third catoptric arrangement 23 It is all located between the first extended segment 111, the second extended segment 112 and third extended segment 113.Preferably, with the embodiment of the present invention For, the first extended segment 111 can be anti-by second by the first focus 21a of the first catoptric arrangement 21, the second extended segment 112 It penetrates the first focus 22a of structure 22 and third extended segment 113 can be by the first focus 23a of third catoptric arrangement 23.

Hold it is above-mentioned, shown in Figure 14 and Figure 18, reflector element 2 still further comprise one be located at the first catoptric arrangement 21, the reflecting surface 2S on the second catoptric arrangement 22 and third catoptric arrangement 23, can between lens axis A and reflecting surface 2S With a cross-point J0, there can be a third intersection point J3 between third axis T3 and lens axis A, and cross-point J0 is burnt to lens Preset distance L0 between point 1a is less than third intersection point J3 to the third distance L3 between lens focus 1a.Furthermore, it is understood that First focus 23a of cross-point J0 and third catoptric arrangement 23 can between there is a third predetermined axial line E3, and third predetermined shaft There can be a third predetermined angle theta 3 between 7 degree to 31 degree between line E3 and third axis T3, it is preferable that third is predetermined Angle, θ 3 can between 10.5 degree to 27.5 degree, it is highly preferred that third predetermined angle theta 3 can between 13.5 degree to 24.5 degree it Between.Furthermore, it is understood that can have a crosspoint M, cross-point J0 that can be located at the first intersection point between preset plane PS and lens axis A Between J1 and crosspoint M.In addition, cross-point J0 can be between the second intersection point J2 and crosspoint M.Furthermore cross-point J0 can position Between third intersection point J3 and crosspoint M.

Hold it is above-mentioned, shown in Figure 17 and Figure 18, one first tangent line G1 can by cross-point J0 and with first reflection Structure 21 is tangent, and can have the first corner cut α 1 between 47 degree to 64.5 degree between the first tangent line G1 and lens axis A, One second tangent line G2 can be by cross-point J0 and tangent with the second catoptric arrangement 22, and between the second tangent line G2 and lens axis A With the second corner cut α 2 between 47 degree to 64.5 degree, a third tangent line G3 can reflect knot by cross-point J0 and with third Structure 23 is tangent, and has the third corner cut α 3 between 47 degree to 64.5 degree between third tangent line G3 and lens axis A.Into one For step, it is preferable that the first corner cut α 1, the second corner cut α 2 and third corner cut α 3 can be more excellent between 50 degree to 61.5 degree Selection of land, the first corner cut α 1, the second corner cut α 2 and third corner cut α 3 can be between 53 degree to 58.5 degree.

5th embodiment

First, it please refers to Fig.1 shown in 9 and Figure 20, Figure 19 and Figure 20 are respectively fourth embodiment of the invention light projection dress Set the stereoscopic schematic diagram of U.By the comparison of Figure 19 and Figure 20 and Fig. 1 and Fig. 2 it is found that the 5th embodiment and first embodiment are maximum The difference is that：The light projection device U that 5th embodiment is provided still further comprises a third catoptric arrangement 23 and one Four catoptric arrangements 24, and luminescence unit 3 still further comprises a third light emitting structure 33 and one the 4th light emitting structure 34.Again Person, by the comparison of Figure 19 and Figure 20 and Figure 14 and Figure 15 it is found that the 5th embodiment it is maximum with fourth embodiment the difference is that：The The light projection device U that five embodiments are provided still further comprises one the 4th catoptric arrangement 24 and one the 4th light emitting structure 34.In other words, the first catoptric arrangement 21 in the light projection device U provided in the 5th embodiment, the second catoptric arrangement 22, third catoptric arrangement 23 and the 4th catoptric arrangement 24 generally can be using lens axis A as geometric center and in isogonisms point Cloth.Meanwhile first light emitting structure 31, the second light emitting structure 32, third light emitting structure 33 and the 4th light emitting structure 34 are generally Can also lens axis A be in isogonism distribution as geometric center.In addition, the first catoptric arrangement 21, the second catoptric arrangement 22, Three catoptric arrangements 23 and the 4th catoptric arrangement 24 are interconnected with one another, and lens axis A passes through the first catoptric arrangement 21, second The junction of catoptric arrangement 22, third catoptric arrangement 23 and the 4th catoptric arrangement 24.

In addition, referring back to shown in Figure 19 and Figure 20, it should be specified, the 5th embodiment is maximum with fourth embodiment Difference be only that in the 5th embodiment and further increase the 4th catoptric arrangement 24 and the 4th light emitting structure 34, and the first reflection Structure 21, the second catoptric arrangement 22, third catoptric arrangement 23, the first light emitting structure 31, the second light emitting structure 32 and third hair The features such as photo structure 33 are all similar with aforementioned fourth embodiment, hold repeating no more herein.

Hold it is above-mentioned, shown in Figure 19 and Figure 20, below only for different from first embodiment and fourth embodiment Part illustrate.4th catoptric arrangement 24 has one to be located at neighbouring second lateral surface S2 and other than the second lateral surface S2 The first focus (not shown) and one second focus of the first focus of corresponding 4th catoptric arrangement 24 (do not show in figure Go out), the 4th light emitting structure 34 can correspond to the first focus of the 4th catoptric arrangement 24, and the 4th light emitting structure 34 is positioned adjacent to Two lateral surface S2 and the position other than the second lateral surface S2.Whereby, one the 4th projection light caused by the 4th light emitting structure Line (not shown) can be towards the direction of the 4th catoptric arrangement 24 and the projection of the direction of datum plane S.Preferably, the 4th hair Photo structure 34 may be disposed in the first focus of the 4th catoptric arrangement 24.In addition, the second focus of the 4th catoptric arrangement 24 can position In on lens axis A either be adjacent to lens axis A.Preferably, the second focus 21b of the first catoptric arrangement 21, second anti- Penetrate the second focus 22b of structure 22, the second focus 23b of third catoptric arrangement 23, the 4th catoptric arrangement 24 the second focus with And lens focus 1a can overlap.

In addition, it is worth noting that, the section (not shown) of becoming a full member of Figure 19 and Figure 20 can also have as aforementioned Each feature of embodiment.Therefore, the light projection device U provided in the 5th embodiment can further include one and pass through The four axistyle (not shown) of the first focus and lens axis A of 4th catoptric arrangement 24, and the receipts light cone of lens unit 1 Face 11 can also further comprise the 4th extended segment (not shown) of the first focus of the 4th catoptric arrangement 24 of a correspondence, and Four axistyle is generally perpendicular to the 4th extended segment.Furthermore the first focus 21a of the first catoptric arrangement 21, the second catoptric arrangement 22 The first focus of first focus 22a, the first focus 23a of third catoptric arrangement 23 and the 4th catoptric arrangement 24 are all located at first Between extended segment 111, the second extended segment 112, third extended segment 113 and the 4th extended segment or the first extended segment 111 can It can pass through the first focus of the second catoptric arrangement 22 by the first focus 21a of the first catoptric arrangement 21, the second extended segment 112 22a, third extended segment 113 can pass through the 4th reflection by the first focus 23a and the 4th extended segment of third catoptric arrangement 23 First focus of structure 24.Furthermore, it is understood that can have one the 4th intersection point (not show in figure between four axistyle and lens axis A Go out), cross-point J0 to the preset distance L0 between lens focus 1a is less than the 4th intersection point to one the 4th between lens focus 1a Apart from (not shown).In addition, having one the 4th predetermined shaft between cross-point J0 and the first focus of the 4th catoptric arrangement 24 Line (not shown), equally can be with one the between 7 degree to 31 degree the 4th between the 4th predetermined axial line and four axistyle Predetermined angular (not shown), it is preferable that the 4th predetermined angular can be between 10.5 degree to 27.5 degree, it is highly preferred that Four predetermined angulars can be between 13.5 degree to 24.5 degree.

The advantageous effect of embodiment

It can utilize that " first shines the beneficial effects of the present invention are, the light projection device U that the embodiment of the present invention is provided One first throw light P11 caused by structure 31 can be towards the direction of the first catoptric arrangement 21 and the direction of datum plane S It projects, one second throw light P21 caused by the second light emitting structure 32 can be towards the direction of the second catoptric arrangement 22 and base The technical solution of the direction projection of directrix plane S ", and achieve the effect that " improving light harvesting (optically focused) efficiency ".

Content disclosed above is only the preferred possible embodiments of the present invention, and the right for not thereby limiting to the present invention is wanted The protection domain of book is sought, so every equivalence techniques variation done with description of the invention and accompanying drawing content, is both contained in In the protection domain of claims of the present invention.

Claims

1. a kind of light projection device, which is characterized in that the light projection device includes：

One lens unit, the lens unit have a lens focus and one by the lens axis of the lens focus, institute Lens axis is stated by a datum plane and is parallel to the datum plane, the datum plane have one first lateral surface and One the second lateral surface relative to first lateral surface；

One reflector element, the reflector element include one first catoptric arrangement and one second catoptric arrangement, first reflection Structure has one to be located at the first focus adjacent to first lateral surface and other than first lateral surface and corresponds to institute State one second focus of first focus of the first catoptric arrangement, second catoptric arrangement has one to be located at neighbouring described the Two lateral surfaces and the first focus other than second lateral surface and one correspond to described the of second catoptric arrangement Second focus of one focus；And

One luminescence unit, the luminescence unit include one first light emitting structure and one second light emitting structure, and described first shines Structure corresponds to first focus of first catoptric arrangement, and first light emitting structure is positioned adjacent to outside described first The side and position other than first lateral surface, second light emitting structure correspond to the described of second catoptric arrangement First focus, and second light emitting structure is positioned adjacent to second lateral surface and other than second lateral surface Position, wherein one first throw light caused by first light emitting structure can be towards the direction of first catoptric arrangement And the direction projection of the datum plane, one second throw light caused by second light emitting structure can be towards described the The direction of two catoptric arrangements and the projection of the direction of the datum plane.

2. light projection device according to claim 1, which is characterized in that described the first of first catoptric arrangement is burnt Wire definition between point and first focus of second catoptric arrangement is a default axis, the default axis and institute Stating has a predetermined angle between 80 degree to 100 degree between lens axis.

3. light projection device according to claim 1, which is characterized in that first light emitting structure has one first hair Smooth surface, and first throw light can be tied along one first normal direction of first light-emitting surface towards first reflection The direction of structure and the projection of the direction of the datum plane, second light emitting structure have one second light-emitting surface, and described the One second throw light caused by two light emitting structures can be along one second normal direction of second light-emitting surface described in The direction of second catoptric arrangement and the projection of the direction of the datum plane, wherein first throw light passes through described the The reflection of one catoptric arrangement, to form first reflection light by second focus of first catoptric arrangement, institute Reflection of second throw light by second catoptric arrangement is stated, to form one described the by second catoptric arrangement Second reflection light of two focuses.

4. light projection device according to claim 1, which is characterized in that a first axle can be reflected by described first First focus of structure and the lens axis, and a second axis can pass through described the first of second catoptric arrangement Focus and the lens axis, wherein the lens unit has one to receive light cone face, and the receipts light cone face has one first to extend Section and one second extended segment, first extended segment correspond to first focus of first catoptric arrangement, and described second Extended segment corresponds to first focus of second catoptric arrangement, wherein the first axle is generally perpendicular to described first Extended segment, the second axis is generally perpendicular to second extended segment.

5. light projection device according to claim 4, which is characterized in that described the first of first catoptric arrangement is burnt First focus of point and second catoptric arrangement be all located at first extended segment and second extended segment it Between, alternatively, first extended segment is passed through by first focus and second extended segment of first catoptric arrangement First focus of second catoptric arrangement.

6. light projection device according to claim 4, which is characterized in that the reflector element still further comprises one Reflecting surface on first catoptric arrangement and second catoptric arrangement, the lens axis and the reflecting surface it Between have a cross-point, wherein

There is one first intersection point between the first axle and the lens axis, the second axis and the lens axis it Between there is one second intersection point, the cross-point to the preset distance between the lens focus to be less than first intersection point to institute One first distance between lens focus is stated, the cross-point to the preset distance between the lens focus is less than described Second intersection point is to the second distance between the lens focus.

7. light projection device according to claim 6, which is characterized in that the cross-point and first catoptric arrangement First focus between have one first predetermined axial line, described the first of the cross-point and second catoptric arrangement burnt There is one second predetermined axial line, wherein with one between 7 degree between first predetermined axial line and the first axle between point The first predetermined angular between to 31 degree, with one between 7 degree to 31 between second predetermined axial line and the second axis The second predetermined angular between degree.

8. light projection device according to claim 4, which is characterized in that described the first of first catoptric arrangement is burnt Wire definition between point and first focus of second catoptric arrangement is a default axis, the default axis and institute Stating has a crosspoint between lens axis, wherein the reflector element still further comprises one and is located at the first reflection knot Structure and the reflecting surface on second catoptric arrangement, have a cross-point between the lens axis and the reflecting surface, Wherein, there is one first intersection point, the cross-point to be located at first intersection point between the first axle and the lens axis Between the crosspoint.

9. light projection device according to claim 8, which is characterized in that the second axis and the lens axis it Between have one second intersection point, the cross-point is between second intersection point and the crosspoint.

10. light projection device according to claim 1, which is characterized in that described the second of first catoptric arrangement Focus is located on the lens axis or is adjacent to the lens axis, second focus position of second catoptric arrangement In on the lens axis or being adjacent to the lens axis.

11. light projection device according to claim 1, which is characterized in that described the second of first catoptric arrangement Focus, second focus of second catoptric arrangement and the lens focus three overlap.

12. light projection device according to claim 1, which is characterized in that first catoptric arrangement and described Two catoptric arrangements are interconnected with one another, and the lens axis passes through first catoptric arrangement and second catoptric arrangement Junction.

13. light projection device according to claim 1, which is characterized in that first light emitting structure is adjacent to described First focus of first catoptric arrangement is set up directly in first focus of first catoptric arrangement, and described Two light emitting structures are adjacent to first focus of second catoptric arrangement or are set up directly on the second reflection knot In first focus of structure.

14. light projection device according to claim 1, which is characterized in that the reflector element still further comprises one First cambered surface catoptric arrangement and one second cambered surface catoptric arrangement, the first cambered surface catoptric arrangement are positioned adjacent to described first The lateral surface and position other than first lateral surface, the second cambered surface catoptric arrangement are positioned adjacent to outside described second Side and the position other than second lateral surface.

15. light projection device according to claim 14, which is characterized in that the first cambered surface catoptric arrangement and institute Stating the second cambered surface catoptric arrangement, there is parabolic curvature, the first cambered surface catoptric arrangement to have a focus, second cambered surface anti- Penetrating structure has a focus, and first light emitting structure corresponds to the focus of the second cambered surface catoptric arrangement, and described the Two light emitting structures correspond to the focus of the first cambered surface catoptric arrangement.

16. light projection device according to claim 14, which is characterized in that one caused by first light emitting structure First injection light can be projected towards the direction of the second cambered surface catoptric arrangement, one the caused by second light emitting structure Two injection light can be projected towards the direction of the first cambered surface catoptric arrangement, wherein described first projects light described in The reflection of second cambered surface catoptric arrangement and form one first irradiation light, it is described second project light it is anti-by first cambered surface It penetrates the reflection of structure and forms one second irradiation light.

17. light projection device according to claim 1, which is characterized in that the lens unit has one to receive light cone face, The reflector element still further comprises an extension catoptric arrangement, first catoptric arrangement and second catoptric arrangement position In the range in the receipts light cone face.

18. light projection device according to claim 17, which is characterized in that the curvature of curved surface for extending catoptric arrangement It is identical as the curvature of curved surface of first catoptric arrangement or the curvature of curved surface of the second catoptric arrangement.

19. light projection device according to claim 17, which is characterized in that the reflector element still further comprises one Reflecting surface on first catoptric arrangement and second catoptric arrangement, the lens axis and the reflecting surface Between have a cross-point, wherein

One first tangent line can be by the cross-point and tangent with first catoptric arrangement, and first tangent line with it is described There is the first corner cut between 47 degree to 64.5 degree between mirror optical axis, one second tangent line can by the cross-point and with institute It is tangent to state the second catoptric arrangement,

And with the second corner cut between 47 degree to 64.5 degree between second tangent line and the lens axis.

20. light projection device according to claim 1, which is characterized in that first catoptric arrangement is neighbouring with one In the vertex of first focus of first catoptric arrangement, the vertex of first catoptric arrangement is to described first anti- Penetrating has one first short distance between first focus of structure, and first focus of first catoptric arrangement is to described Have between second focus of first catoptric arrangement one first over long distances, wherein first long range is more than described the One short distance, first long range and first short-range ratio are between 1.8 to 3.8.

21. light projection device according to claim 20, which is characterized in that second catoptric arrangement is neighbouring with one In the vertex of first focus of second catoptric arrangement, the vertex of second catoptric arrangement is to described second anti- Penetrating has one second short distance between first focus of structure, and first focus of second catoptric arrangement is to described Have between second focus of second catoptric arrangement one second over long distances, wherein second long range is more than described the Two short distances, second long range and second short-range ratio are between 1.8 to 3.8.

22. light projection device according to claim 1, which is characterized in that first catoptric arrangement has one first Endpoint, second endpoint relative to the first end point of first catoptric arrangement and a vertex, wherein described first The first end point of catoptric arrangement between second endpoint of first catoptric arrangement have a first end point distance, The vertex of first catoptric arrangement between the lens axis have one first vertical range, the first end point away from From more than first vertical range, the ratio of the first end point distance and first vertical range between 0.7 to 1.8 it Between.

23. light projection device according to claim 22, which is characterized in that second catoptric arrangement has one first Endpoint, second endpoint relative to the first end point of second catoptric arrangement and a vertex, wherein described second The first end point of catoptric arrangement between second endpoint of second catoptric arrangement have one second end-point distances, The vertex of second catoptric arrangement between the lens axis have one second vertical range, second endpoint away from From more than second vertical range, the ratio of second end-point distances and second vertical range between 0.7 to 1.8 it Between.

24. light projection device according to claim 1, which is characterized in that the reflector element still further comprises one Third catoptric arrangement, the luminescence unit still further comprise a third light emitting structure, and the third catoptric arrangement has one In neighbouring first lateral surface and the first focus other than first lateral surface and the corresponding third reflection knot One second focus of first focus of structure, the third light emitting structure correspond to first coke of the third catoptric arrangement Point, and the third light emitting structure is positioned adjacent to first lateral surface and the position other than first lateral surface, Wherein, a third throw light caused by the third light emitting structure can be towards the direction of the third catoptric arrangement and institute State the direction projection of datum plane.

25. light projection device according to claim 24, which is characterized in that described the first of first catoptric arrangement The plane that first focus of focus, first focus of second catoptric arrangement and the third catoptric arrangement is constituted It is defined as a preset plane, it is pre- between 80 degree to 100 degree with one between the preset plane and the datum plane If angle.

26. light projection device according to claim 24, which is characterized in that the third light emitting structure has a third Light-emitting surface, and the third throw light can be reflected along a third normal direction of the third light-emitting surface towards the third The direction of structure and the projection of the direction of the datum plane, wherein the third throw light is reflected by the third to be tied The reflection of structure and form a third reflection light by second focus of the third catoptric arrangement, third projection Light forms one by second focus of the third catoptric arrangement by the reflection of the third catoptric arrangement Three reflection lights.

27. light projection device according to claim 24, which is characterized in that a first axle can be anti-by described first First focus and the lens axis, a second axis for penetrating structure can pass through described the first of second catoptric arrangement Focus and the lens axis, and first focus that a third axis can be by the third catoptric arrangement and the lens Optical axis, wherein the lens unit has one to receive light cone face, and there is one first extended segment, one second to extend in the receipts light cone face Section and a third extended segment, first extended segment correspond to first focus of first catoptric arrangement, and described second Extended segment corresponds to first focus of second catoptric arrangement, and the third extended segment corresponds to the third catoptric arrangement First focus, wherein the first axle generally perpendicular to first extended segment, the second axis generally perpendicular to Second extended segment, and the third axis is generally perpendicular to the third extended segment.

28. light projection device according to claim 27, which is characterized in that described the first of first catoptric arrangement First focus of focus, first focus of second catoptric arrangement and the third catoptric arrangement is all located at described Between one extended segment, second extended segment and the third extended segment, alternatively, first extended segment passes through described first First focus of catoptric arrangement, second extended segment pass through first focus of second catoptric arrangement and described First focus that third extended segment passes through the third catoptric arrangement.

29. light projection device according to claim 27, which is characterized in that the reflector element still further comprises one Reflecting surface on first catoptric arrangement, second catoptric arrangement and the third catoptric arrangement, it is described There is a cross-point, wherein have between the first axle and the lens axis between mirror optical axis and the reflecting surface One first intersection point, between the second axis and the lens axis have one second intersection point, the third axis with it is described There is a third intersection point, the cross-point to the preset distance between the lens focus to be less than described first between mirror optical axis Intersection point is to one first distance between the lens focus, the cross-point to the preset distance between the lens focus Less than second intersection point to the second distance between the lens focus, the cross-point is between the lens focus The preset distance is less than the third intersection point to the third distance between the lens focus.

30. light projection device according to claim 29, which is characterized in that the cross-point is tied with first reflection There is one first predetermined axial line, the cross-point and described the first of second catoptric arrangement between first focus of structure There is one second predetermined axial line between focus, have between the cross-point and first focus of the third catoptric arrangement One third predetermined axial line, wherein between first predetermined axial line and the first axle with one between 7 degree to 31 degree The first predetermined angular, between second predetermined axial line and the second axis with one between 7 degree to 31 degree the Two predetermined angulars have a third between 7 degree to 31 degree pre- between the third predetermined axial line and the third axis Determine angle.

31. light projection device according to claim 27, which is characterized in that described the first of first catoptric arrangement What first focus of focus, first focus of second catoptric arrangement and the third catoptric arrangement was constituted Plane definition is a preset plane, has a crosspoint between the preset plane and the lens axis, wherein the reflection Unit still further comprises one and is located at first catoptric arrangement and the reflecting surface on second catoptric arrangement, the lens There is a cross-point, wherein have one between the first axle and the lens axis between optical axis and the reflecting surface First intersection point, the cross-point is between first intersection point and the crosspoint.

32. light projection device according to claim 24, which is characterized in that described the second of first catoptric arrangement Focus is located on the lens axis or is adjacent to the lens axis, second focus position of second catoptric arrangement In on the lens axis or being adjacent to the lens axis, second focus of the third catoptric arrangement is located at described Either it is adjacent to the lens axis on lens axis.

33. light projection device according to claim 24, which is characterized in that described the second of first catoptric arrangement Focus, second focus of second catoptric arrangement, second focus of the third catoptric arrangement and described Mirror foci overlaps.

34. light projection device according to claim 24, which is characterized in that first catoptric arrangement, described second Catoptric arrangement and the third catoptric arrangement are interconnected with one another, and the lens axis by first catoptric arrangement, The junction of second catoptric arrangement and the third catoptric arrangement.

35. light projection device according to claim 24, which is characterized in that the reflector element still further comprises one Reflecting surface on first catoptric arrangement, second catoptric arrangement and the third catoptric arrangement, it is described Between mirror optical axis and the reflecting surface have a cross-point, wherein one first tangent line can by the cross-point and with it is described First catoptric arrangement is tangent, and have between first tangent line and the lens axis between 47 degree to 64.5 degree the One corner cut, one second tangent line can be by the cross-point and tangent with second catoptric arrangement, and second tangent line and institute State the second corner cut having between lens axis between 47 degree to 64.5 degree, a third tangent line can by the cross-point and It is tangent with the third catoptric arrangement, and between the third tangent line and the lens axis have between 47 degree to 64.5 degree it Between third corner cut.

36. light projection device according to claim 24, which is characterized in that the reflector element still further comprises one 4th catoptric arrangement, the luminescence unit still further comprise one the 4th light emitting structure, and the 4th catoptric arrangement has one In neighbouring second lateral surface and the first focus other than second lateral surface and the corresponding 4th reflection knot One second focus of first focus of structure, the 4th light emitting structure correspond to first coke of the 4th catoptric arrangement Point, and the 4th light emitting structure is positioned adjacent to second lateral surface and the position other than second lateral surface, Wherein, one the 4th throw light caused by the 4th light emitting structure can be towards the direction of the 4th catoptric arrangement and institute State the direction projection of datum plane.