CN107062041B

CN107062041B - Anti-glare lighting box

Info

Publication number: CN107062041B
Application number: CN201611244419.7A
Authority: CN
Inventors: 张有良; 叶勇越; 戴国树
Original assignee: Zhongshan Guangda Optical Co ltd
Current assignee: Zhongshan Guangda Optical Co ltd
Priority date: 2016-12-29
Filing date: 2016-12-29
Publication date: 2019-01-15
Anticipated expiration: 2036-12-29
Also published as: CN107062041A

Abstract

The invention provides an anti-glare lighting box, which comprises a shell, wherein an LED lamp, a fixed plate, a light filter plate and a prism assembly are arranged in the shell, the fixed plate is arranged at the front side of the LED lamp, the fixed plate is provided with a light outlet corresponding to the light of the LED lamp, the light filter plate is rotatably fixed at the front side of the fixed plate, the front end of the light filter plate is fixedly provided with the prism assembly, and the prism assembly comprises a first prism layer and a second prism layer at the rear side of the first prism layer.

Description

Anti-dazzle lighting case

Technical field

The present invention relates to field of lighting devices fields, particularly relate to a kind of anti-dazzle lighting case.

Background technique

Using optical device, such as when lamps and lanterns, probably due to it is excessively dim or dazzling and cause the uncomfortable of human eye, it is this The main reason for problem not instead of light source, source outer be covered with refraction tabula rasa optically focused or refractive power effect it is poor.

" dazzle " is a kind of undesirable illumination phenomenon, when the brightness of light source is high or the luminance difference of background and central region When larger, " dazzle " will be generated.Dazzle (Dazzle) refers in the visual field due to being not suitable for Luminance Distribution, or in space or time On there are extreme brightness contrasts so that cause vision it is uncomfortable and reduce object visibility visual condition.It is generated in the visual field The light that human eye can not adapt to is felt, even it may cause detest, uncomfortable forfeiture legibility.In the visual field certain-local area There is excessively high brightness or front and back and excessive brightness change occurs.Dazzle is to cause the one of the major reasons of visual fatigue.

In stage is practical, brightness is improved often through light source power is provided to realize, but the way for being to provide power is past Toward temperature is only increased, there is no what to change for brightness.How anti-dazzle is produced, and the lighting apparatus of more optically focused is that we need to grind The direction studied carefully.

Summary of the invention

The present invention proposes a kind of anti-dazzle lighting case, solves the problem of dazzle in the prior art, optically focused cannot balance.

The technical scheme of the present invention is realized as follows:

Anti-dazzle lighting case, including shell, the shell are no six face box body of front cover, are provided with LED light in the shell, Fixed plate, filter and prism assemblies are additionally provided in the shell, the fixed plate is on LED light top, the fixed plate Equipped with the light hole that corresponding LED light light appears, the filter is rotatably fixed on the fixed plate top, the optical filtering Plate is equipped with the filter plate of M circumference array, and the filter is fixedly arranged at the front end with a prism assemblies, and the prism assemblies include the Second prism layer of one prism layer and the first prism layer lower part, first prism layer lower surface are equipped with prism block, the prism Block forms periodic undulations face along the ontology longitudinal axis, and same longitudinal axis prism block forms the wave of periodic undulations along X direction array Face；Second prism layer upper surface is equipped with array prism bar structure, and second prism layer includes a bottom plate and bottom plate top Prism bar, the prism bar includes the first prism and the second prism, and the two is staggered to form pattern plane, each prism Section is isosceles trapezoid, and isosceles trapezoid upper topside length determines in each prism bar, and bottom edge lengths do linear change, same Adjacent two bottom in section mutually compensates；The downward projection of the prism bar axial direction line and the first prism layer ontology longitudinal axis is handed over Fork-shaped α at an acute angle, wherein 60 °≤α≤90 °

As a preferred solution of the present invention, the LED light is electrically connected with external control circuit and power circuit, each filter Wave plate diameter is more than or equal to the light hole diameter, and the filter is equipped with a motor, and the motor passes through the filter It is fixed in the fixed plate, the outside motor is cased with cooperation shaft, and the cooperation rotation is fixed in the middle part of filter band, in electricity Machine rotation is lower to drive filter rotation.

As a preferred solution of the present invention, the prism assemblies rear portion is equipped with a fixing seat, and the fixing seat is fixed on institute State optical filtering prelaminar part.

As a preferred solution of the present invention, first prism layer top is substrate, and the prism block passes through ultraviolet sealing Glue is fixed on the substrate lower part, and the prism block is to upwardly extend from substrate root, the frustum structure of formation, the prism block Including upper top surface, left side, right side, leading flank and trailing flank.

As a preferred solution of the present invention, it is axial relief, continuous rib that top surface, which is with y-axis direction, in each prism block Top surface forms discontinuous wavy surface on mirror block, and prism layer side elevation obtains the wave with N number of period that rises and falls, each prism block Reflecting coating is equipped on the inside of side, light top surface from prism block enters prism layer, projects by refraction from the substrate scope of freedom, institute Stating prism block refractive index is n, wherein 1≤n≤1.4, each prism block root is the rectangle of same size, the rectangle length For O, width P, wherein 20 μm≤O≤1mm, 10 μm≤P≤1mm, the average height of the prism block is Q, wherein 10 μm≤Q ≤ 1mm,.

As a preferred solution of the present invention, the base angle angle that first left side and the first right side are formed with bottom surface respectively Degree is Θ, and wherein Θ meets Θ≤5 2≤n/sin；20≤N/Q≤50.

As a preferred solution of the present invention, the second prism layer material is optical glass, quartz glass, alkali metal halogenation One of object crystal, the first prism in second prism layer include top surface on second, bottom surface and as two waists of left and right Inclined-plane, top surface width is A on described second, and bottom surface width is B, high H, inclined-plane and bottom surface angle β；Second prism Upper top surface width a, bottom surface width b high h, the waist of second prism and bottom surface are δ in angle.

As a preferred solution of the present invention, wherein A is fixed value, and B carries out continuous regularity along the vertical central axis of prism Variation, the bottom left and right ends of the first prism, downward projection form two symmetrical regular frequency waves, second rib One first prism of mirror is adjacent to fixation to be compensation, and the second prism bottom both ends are corresponding with adjacent first prism bottom to be overlapped.

As a preferred solution of the present invention, the second prism layer refractive index is m, β≤5 2≤m/sin；35°≤β≤ 55°；B > a；1≤H/h≤2；1≤B/b≤3；δ≤3 1≤m/sin, adjacent two waist included angle range of two prisms item be 20 °~ 45 °, in addition, 5 μm≤a≤0.5mm；10 μm≤A≤1mm, 7 μm≤b≤1mm；10μm≤B≤1.5mm.

As a preferred solution of the present invention, the prism block by polymethyl methacrylate, polycarbonate, polystyrene, The material injection of one or more of styrene-methylmethacrylate copolymer forms；The prism bar is by containing diffusant Translucent material be made, the translucent material be polycarbonate, polymethyl methacrylate, acrylic plastics or glass.

Beneficial effect

The invention proposes a kind of anti-dazzle lighting case, including shell, be arranged inside LED light, fixed plate, filter and Prism assemblies, fixed plate are set on front side of LED light, and the fixed plate is equipped with the light hole that corresponding LED light light appears, the filter Tabula rasa is rotatably fixed on front side of the fixed plate, and filter is fixedly arranged at the front end with a prism assemblies, and the prism assemblies include The second prism layer on rear side of first prism layer and the first prism layer, the present invention can adjust filter plate at any time makes light color or wave band It changes, by the configuration of prism assemblies, reduces the probability of light scattering, enhance spotlight effect and reduce dazzle amount, make one Eye is in comfort conditions.

Detailed description of the invention

In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art To obtain other drawings based on these drawings.

Fig. 1 is fractionation structural representation of the present invention；

Fig. 2 is the first prism layer schematic perspective view of the invention；

Fig. 3 is embodiment overlooking structure diagram；

Fig. 4 is prism block main view section projection structure figure；

Fig. 5 is prism block side cross-sectional projection structure figure；

Fig. 6 is the second prism layer schematic perspective view

Fig. 7 is the second prism layer prism bar schematic cross-section.

In figure, shell 1, LED light 2, fixed plate 3, filter 4, filter plate 41, motor 42, prism assemblies 5, the first prism Layer 51, substrate 511, prism block 512, top surface 5121, the first left side 5122, the 5123, first front side of the first right side on first Face 5124, the first trailing flank 5125, the second prism layer 52, bottom plate 521, the first prism 522, the second prism 523, top surface on second 5221, inclined-plane 5222, bottom surface 5223, fixing seat 6.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Based on this Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts Example is applied, shall fall within the protection scope of the present invention.

As shown in figs. 1-7, anti-dazzle lighting case, including shell 1, shell 1 are no six face box body of front cover, setting in shell 1 There is LED light 2, fixed plate 3, filter 4 and prism assemblies 5 are additionally provided in shell 1, fixed plate 3 is set to 2 top of LED light, fixed plate 3 are equipped with the light hole that corresponding LED light light appears, and filter 4 is rotatably fixed on 3 top of fixed plate, sets on filter 4 There is the filter plate 41 of M circumference array, filter 4 is fixedly arranged at the front end with a prism assemblies 5, and prism assemblies 5 include the first prism layer 51 and first prism layer lower part the second prism layer 52,51 lower surface of the first prism layer be equipped with prism block 512, prism block is along ontology The longitudinal axis forms periodic undulations face, and same longitudinal axis prism block forms the wavy surface of periodic undulations along X direction array；Second 52 upper surface of prism layer is equipped with array prism bar structure, and the second prism layer includes the prism bar of a bottom plate 521 and bottom plate top, rib Mirror item includes that the first prism 522 and the second prism 523, the two are staggered to form pattern plane, and each prism bar section is isosceles Trapezoidal, isosceles trapezoid upper topside length determines in each prism bar, and bottom edge lengths do linear change, adjacent the two of same section Bottom mutually compensates；The downward projection of 51 ontology longitudinal axis of prism bar axial direction line and the first prism layer intersects to form sharp angle α, In 60 °≤α≤90 °

LED light 2 is electrically connected with external control circuit and power circuit, and each 41 diameter of filter plate is more than or equal to light hole Diameter, filter are equipped with a motor 42, and motor 42 passes through filter 4 and is fixed in fixed plate 3, and cooperation is cased with outside motor 42 Shaft, cooperation rotation are fixed in the middle part of filter band, and filter rotation is driven under the rotation of motor 42.

5 rear portion of prism assemblies is equipped with a fixing seat 6, and fixing seat 6 is fixed on 4 front of filter.

First prism layer, 51 top is substrate 511, and prism block 512 is fixed on 511 lower part of substrate, rib by ultraviolet light sealing Mirror block is to upwardly extend from 511 root of substrate, the frustum structure of formation, and prism block includes upper top surface 5121, left side 5122, the right side Side 5123, leading flank 5124 and trailing flank 5125.

It is axial relief that top surface, which is with y-axis direction, in each prism block, and top surface forms discontinuous in continuous prism block Wavy surface, prism layer side elevation obtain the wave with N number of period that rises and falls, are equipped with reflective painting on the inside of each prism block side Layer, light enter prism layer from top surface in prism block 512, are projected by refraction from 511 scope of freedom of substrate, the prism block refraction Rate is n, wherein 1≤n≤1.4, each prism block root is the rectangle of same size, and the rectangle length is O, width P, Wherein 20 μm≤O≤1mm, 10 μm≤P≤1mm, the average height of the prism block is Q, wherein 10 μm≤Q≤1mm,.

The base angle angle that first left side 5122 and the first right side 5123 are formed with bottom surface respectively is Θ, and wherein Θ is full Θ≤5 2≤n/sin of foot；20≤N/Q≤50.

Second prism layer, 52 material be one of optical glass, quartz glass, alkali halide crystals, described second The first prism 522 in prism layer 52 includes top surface 5221 on second, bottom surface 5223 and the inclined-plane 5222 as two waists of left and right, 5221 width of top surface is A on second, and 5223 width of bottom surface is B, high H, inclined-plane 5222 and 5223 angle β of bottom surface；Second rib Width a in top surface on mirror 523, bottom surface width b high h, the waist of second prism 523 and bottom surface are δ in angle

Wherein A is fixed value, and B carries out continuous regularity variation, the bottom of the first prism 522 along the vertical central axis of prism Side left and right ends, downward projection form two symmetrical regular frequency waves, and the 523 one the first prism 522 of the second prism is benefit The formula of repaying is adjacent to fixation, and 523 bottom both ends of the second prism are corresponding with adjacent first prism, 522 bottom to be overlapped.

Second prism layer, 2 refractive index is m, β≤5 2≤m/sin；35°≤β≤55°；B > a；1≤H/h≤2；1≤B/b≤ 3；δ≤3 1≤m/sin, adjacent two waist included angle range of two prisms item is 20 °~45 °, in addition, 5 μm≤a≤0.5mm；10μm ≤ A≤1mm, 7 μm≤b≤1mm；10μm≤B≤1.5mm.

Prism block is copolymerized by polymethyl methacrylate, polycarbonate, polystyrene, styrene methyl methacrylate The material injection of one or more of object forms；The prism bar is made of the translucent material containing diffusant, the light transmission material Material is the plastics or glass of polycarbonate, polymethyl methacrylate, acrylic.

Embodiment 1

Such as the first prism layer 51 in Fig. 2, bottom is transparent substrate 511, with a thickness of 10 μm -100 μm.

Substrate is equipped with the prism block 512 of N number of transverse and longitudinal array, and prism block 512 is that a frustum knot is formed from themselves bottom Structure, the adhesive layer between prism block and substrate are ultraviolet light illuminaton adhesive layer.

The bottom of each prism block 512 is all the rectangle of the same size fitted closely, and the x-axis direction length of rectangle is 20 μm between 1mm, preferably 20 μm, 40 μm, 60 μm, 80 μm, 100 μm, y-axis width at 10 μm between 1mm, preferably 1- μm, 20 μm, 30 μm, 40 μm, 50 μm；Z-axis average height is 10 μm between 1mm, each prism block 512 tool there are four inclined-plane and One top surface, forms the diminishing frustum structure of area, and each prism block 512 includes upper top surface 5121, leading flank 5124, trailing flank 5125, left side 5122, right side.On leading flank 5124, trailing flank 5125, left side 5122 and right side Equipped with reflective membrane, light can only enter prism layer by upper top surface 5121, then be refracted out from the transparent substrate other side.

With spatial axes x-axis, on the basis of y-axis and z-axis, the prism block section in the face prism block xoz is an isosceles trapezoid, normal light Beam is entered by upper top surface 121, is projected after refraction from substrate surface.

Still in the prism block section in the face xoz, two adjacent isosceles trapezoids are identical, two isosceles trapezoid adjacent side shapes At angle be Θ.Wherein the refractive index of prism is n, and wherein the refractive index of prism and base angle meet the following conditions: 2≤n/sin Θ≤5, wherein 1≤n≤1.4.

Be irregular structure in the prism block section in the face yoz, leading flank 5124 and trailing flank 5125 respectively with bottom surface The angle of formation is identical.It is projected in the face yoz section, the angle that adjacent two prisms block junction is formed, i.e. front side prism prism block Leading flank shape block trailing flank and rear side at angle it is identical, angular range is between 15 ° to 30 °.

There are many kinds of the materials of filter plate, such as glass: K9, BK7, B270, quartz glass, float glass, coloured glass, light Bright glass, corning glass, Xiao Te glass etc..There are also some plastics: PMMA, PC, etc..Different filter plates have different colours, Unwanted light wave can be filtered off simultaneously.

In the prism block section in the face yoz, top surface forms discontinuous rule and changes wave in continuous prism block, limits ruler At least N number of wave rises and falls the period in very little prism layer.The heaving of the sea period is 20 to 45 times of prism block average height.

Embodiment 2

Such as the second prism layer 52 in Fig. 6 Fig. 7, bottom is dianegative 521, with a thickness of 50 μm -200 μm.

It is stained with prism on bottom plate, mainly includes the first prism 512 and the second prism 513, the gluing between prism and bottom plate Layer is ultraviolet light illuminaton adhesive layer.

First prism is parallel with the second prism vertical central axis, and array is set on substrate, most similar two first rib Second prism 523 is equipped between mirror 522.It is compensated mutually between two neighboring first prism 522 and the second prism 523.

The material of prism is optical glass, quartz glass, alkali halide (such as sodium bromide) crystal.

As shown in fig. 7, the first prism includes top surface 5221, bottom surface 5223 and inclined-plane 5222 on second, the section of prism For isosceles trapezoid, including upper bottom edge, bottom and two waists.Upper bottom edge length A, go to the bottom edge lengths B, high H, waist and bottom angle β。

Wherein A is fixed value, and B carries out continuous regularity variation, the bottom of the first prism along the vertical central axis of prism Left and right ends, downward projection form two symmetrical regular frequency waves.

The refractive index of first prism 522 is m, β≤5 2≤m/sin.Wherein m can be equal to 2*sin β, 2.5*sin β, 3*sin β, 3.5*sin β, 4*sin β or 4.5*sin β.Wherein β is 35 ° to 55 °.

Second prism 53 and the first prism 52 be it is compensation be adjacent to fixation, 523 bottom both ends of the second prism and adjacent the One prism, 522 bottom opposite ends are overlapped, the 523 upper bottom edge length a of the second prism, and go to the bottom edge lengths b, b > a, high h, Wherein 1≤H/h≤2,1≤B/b≤3,53 waist of the second prism and bottom angulation are δ, wherein 523 refractive index of the second prism is same For m, wherein δ≤3 1≤m/sin, wherein m can be equal to 1*sin δ, 1.5*sin δ, 1.8*sin δ, 2*sin δ, 2.3*sin δ, 2.5*sin δ, 2.7*sin δ or 3*sin δ.Wherein δ is between 45 ° to 75 °.

Same main view section projects upper two kidney-shaped forming V-shape angle of adjacent first prism and the second prism, and angle is 20 °~ 45°.Wherein preferably 20 °, 25 °, 30 °, 35 °, 40 °.

Furthermore 5 μm≤a≤0.5mm；10 μm≤A≤1mm, 7 μm≤b≤1mm；10μm≤B≤1.5mm.

The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.

Claims

1. An anti-glare lighting box, comprising a casing (1), the casing (1) is a six-sided box without a front cover, and an LED lamp (2) is arranged in the casing (1), wherein the casing (1) is characterized in that (1) There is also a fixing plate (3), a filter plate (4) and a prism assembly (5) inside, the fixing plate (3) is arranged on the upper part of the LED lamp (2), and the fixing plate (3) is arranged on the upper part of the LED lamp (2). There are light exit holes corresponding to the light rays of the LED lights, the filter plate (4) is rotatably fixed on the upper part of the fixed plate (3), and M filters ( 41), a prism assembly (5) is fixed at the front end of the filter plate (4), and the prism assembly (5) comprises a first prism layer (51) and a second prism layer (52) at the lower part of the first prism layer, so Prism blocks (512) are provided on the lower surface of the first prism layer (51), the prism blocks form periodic undulating surfaces along the longitudinal axis of the body, and the prism blocks with the same longitudinal axis are arrayed along the horizontal axis to form periodic undulating undulating surfaces; The upper surface of the second prism layer (52) is provided with an array prism strip structure, the second prism layer includes a base plate (521) and a prism strip on the upper part of the base plate, and the prism strip includes a first prism (522) and a second prism strip. Two prisms (523), the two are staggered to form a pattern surface, the cross-section of each prism strip is an isosceles trapezoid, the length of the upper top edge of the isosceles trapezoid in each prism strip is determined, and the length of the lower base edge is linearly changed, the same cross-section The two adjacent lower bottom edges of the two adjacent bottoms compensate each other; the axial line of the prism strip intersects the top-view projection of the longitudinal axis of the body of the first prism layer (51) to form an angle α, where 60°≤α≤90°; the first prism layer (51) The upper part of the prism layer (51) is the base plate (511), the prism block (512) is fixed on the lower part of the base plate (511) by ultraviolet sealing glue, and the prism block is a cone formed by extending upward from the root of the base plate (511). In the stage structure, the prism block includes an upper top surface (5121), a left side surface (5122), a right side surface (5123), a front side surface (5124) and a rear side surface (5125).

2. The anti-glare lighting box according to claim 1, wherein the LED lamp (2) is electrically connected to an external control circuit and a power supply circuit, and the diameter of each filter (41) is greater than or equal to the light output hole diameter, a motor (42) is provided on the filter plate, the motor (42) is fixed on the fixing plate (3) through the filter plate (4), and the motor (42) is covered with The matching rotating shaft is fixed in the middle of the filter plate, and drives the filter plate to rotate under the rotation of the motor (42).

3. The anti-glare lighting box according to claim 2, characterized in that, a fixing seat (6) is provided at the rear of the prism assembly (5), and the fixing seat (6) is fixed on the filter plate (4). )Front part.

4. The anti-glare lighting box according to claim 1 is characterized in that, the top surface of each prism block is an undulating surface with the y-axis direction as the axial direction, and the top surface of the continuous prism block forms an intermittent wave surface, and the prism A wavy line with N undulating periods is obtained from the side-view projection of the layer, and the inner side of each prism block is provided with a reflective coating, and the light enters the prism layer from the top surface of the prism block (512), and exits from the free surface of the substrate (511) through refraction, The refractive index of the prism block is n, where 1≤n≤1.4, the root of each prism block is a rectangle of the same size, the length of the rectangle is O, and the width is P, where 20μm≤O≤1mm, 10μm≤P≤ 1mm, the average height of the prism block is Q, where 10μm≤Q≤1mm.

5. anti-glare lighting box according to claim 4, is characterized in that, the bottom angle that the first left side (5122) and the first right side (5123) of prism block respectively form with bottom surface is Θ, Wherein Θ satisfies 2≤n/sinΘ≤5; 20≤N/Q≤50.

6. The anti-glare lighting box according to claim 1, wherein the second prism layer (52) is made of one of optical glass, quartz glass, and alkali metal halide crystal, and the second prism The first prism (522) in the layer (52) includes a second upper top surface (5221), a lower bottom surface (5223) and inclined surfaces (5222) serving as left and right waists, and the width of the second upper top surface (5221) is A, the width of the lower bottom surface (5223) is B, the height is H, and the angle β between the inclined surface (5222) and the lower bottom surface (5223); The angle between the waist and the bottom of the second prism (523) is δ.

7. The anti-glare lighting box according to claim 6, wherein A is a fixed value, B is continuously and regularly changed along the longitudinal center axis of the prism, and the left and right ends of the lower bottom edge of the first prism (522) , the top view projection forms two symmetrical regular frequency wavy lines, the second prism (523) and the first prism (522) are compensating and tightly fixed, and the two ends of the lower bottom edge of the second prism (523) are connected to the adjacent first prism (523). The lower bases of a prism (522) are correspondingly overlapped.

8. The anti-glare lighting box according to claim 7, wherein the refractive index of the second prism layer (2) is m, 2≤m/sinβ≤5; 35°≤β≤55°; b> a; 1≤H/h≤2; 1≤B/b≤3; 1≤m/sinδ≤3, the angle between the two waists of two adjacent prism strips ranges from 20° to 45°, in addition, 5μm≤a≤ 0.5mm; 10μm≤A≤1mm, 7μm≤b≤1mm; 10μm≤B≤1.5mm.

9 . The anti-glare lighting box according to claim 1 , wherein the prism block is made of polymethyl methacrylate, polycarbonate, polystyrene, and styrene-methyl methacrylate copolymer. 10 . One or more materials are injection-molded; the prism strip is made of a light-transmitting material containing a diffusing agent, and the light-transmitting material is polycarbonate, polymethyl methacrylate, acrylic-based plastic or glass.