CN207350099U - A kind of motorcycle headlamp dipped headlight - Google Patents

Abstract

The utility model discloses a kind of motorcycle headlamp dipped headlight, it includes mounting base, nearly transmissive mirror, retainer ring, nearly illuminator, radiator structure；The retainer ring is equipped with ring body and at least one first buckle extended from the ring body to one end and the first limit hole in the described first buckle, described mounting base one end is convexly equipped with least one the first holding section coordinated with first limit hole, and the other end of the mounting base is fixed with the radiator structure；The nearly transmissive mirror is equipped with the nearly mirror body of half drum organization, and half cydariform is formed by cydariform along the face cutting of its axis；Stretch out to form mirror body fixed part from the edge of the nearly mirror body, the Fixing shrink ring is arranged on outside the nearly mirror body, and the mirror body fixed part is limited in, and the first limit hole by the retainer ring and the spacing fixation in the first holding section, the nearly transmissive mirror is fixed with the mounting base.

Description

A kind of motorcycle headlamp dipped headlight

Technical field

The utility model motorcycle lighting technical field, particularly a kind of motorcycle headlamp dipped beam with dipped headlight Lamp.

Background technology

The conventional motorcycle dim head lights lamp generally used, structure generally by lampshade, lamp housing, reflector, filament bulb, Lamp holder, dustproof cover, light adjusting screw etc. form.There are two filaments in light bulb, one is headlight high beam filament, and one is dipped headlight Silk.Headlight high beam filament is located in the focus of reflector, its reflection light is parallel, horizontal light, is in ellipticity light on photometric screen Spot；Dip filament is then located at the top of reflector focus, its reflection light is downward parallel rays, is produced on photometric screen "cut-off"line.Exist to illuminate under the larger, misfiring condition of illumination power consumption energy consumption to solve the headlamp of traditional filament light bulb and hold The continuous the problems such as time is short, bulb life is short, have begun to use at present with energy-saving and environmental protection, small, response is fast, long lifespan And the front car light of the shock resistance LED light source of good characteristic such as by force, and by as the trend of Future Development.

It is existing to also disclose a kind of automotive LED headlamp structure using optical lens, can include single LED light source, Driving device, secondary optics part, radiator, the secondary optics part are covered on the radiator, and LED light source is arranged at two At optical center in secondary opticator and locate on radiator top surface, it is in half cup-shaped that secondary optics part, which is included at directly over LED light source, Speculum, optical lens and light barrier, light barrier is arranged at the end of the hot radical seat and locates the opening of speculum, lens It is connected by accessory holder with light barrier, and the opening of face speculum is worn for light and penetrated.The shortcomings that this technical solution：One It is that being in the light for light barrier does not meet the requirement as motorcycle headlamp dipped headlight for irregular shape, the hot spot of formation；Second, LED light source and half cup-shaped speculum are all fixed on the dipped beam modulated structure on radiator top surface, it is difficult to and high beam sets and is integrated, Be also not suitable for as motorcycle headlamp dipped headlight, if using be not organically combine piece together, it will answer head lamp structure It is miscellaneous, volume is excessive；Third, using the radiator of radiator structure formula, LED light source power cannot be excessive, and single LED light source is used as and rubs Motorcycle dim head lights lamp will not reach the intensity of illumination of requirement.

Existing majority headlamp all uses iron plate LED light, therefore has a small amount of circuit board and iron plate at light source, if former Internal structure can directly be seen clearly by coming common structure and material, very unsightly.

The content of the invention

For deficiencies of the prior art, the utility model provides a kind of motorcycle headlamp dipped headlight.

To achieve these goals, the technical solution adopted in the utility model is as follows：

A kind of motorcycle headlamp dipped headlight, it includes mounting base, nearly transmissive mirror, retainer ring, nearly illuminator, heat dissipation knot Structure；What the retainer ring was equipped with ring body and extend from the ring body to one end at least one first is buckled and positioned at described the The first limit hole in one buckle, described mounting base one end are convexly equipped with least one the first card coordinated with first limit hole Portion is held, the other end of the mounting base is fixed with the radiator structure；The nearly transmissive mirror is equipped with the nearly mirror body of half drum organization, Half cydariform is formed by cydariform along the face cutting of its axis；Stretch out from the edge of the nearly mirror body and to form mirror body and fix Portion, the Fixing shrink ring is arranged on outside the nearly mirror body, and is limited in the mirror body fixed part, and passes through the first of the retainer ring Limit hole and the spacing fixation in the first holding section, make the nearly transmissive mirror be fixed with the mounting base.

The diameter of the ring body is less than the diameter of the mirror body fixed part, realizes that the retainer ring is limited in the mirror body Fixed part.

Mounting base one end of the dipped headlight is equipped with mounting portion, and first holding section is arranged on the mounting portion, described Nearly transmissive mirror is fixed on one end of the mounting portion.

The nearly illuminator is fixed together with the radiator structure, and positioned at the radiator structure and the mounting portion it Between.

The dipped headlight further includes the light distribution panel between nearly illuminator and the mounting portion；The dipped headlight further includes Nearly reflector, the nearly reflector are fixed with the mounting base and positioned at nearly illuminator, the tops of the light distribution panel.

The mounting base is equipped with the first pilot hole, and the nearly reflector is equipped with the corresponding with first pilot hole second dress Distribution, the assembles post coordinated with first, second pilot hole is equipped with the light distribution panel, will be described near anti-by the assembles post Light bowl, the light distribution panel and the mounting base are fixed.

The nearly reflector is additionally provided with least one second buckle and the second limit hole in the described second buckle, institute State and second holding section spacing with second limit hole is additionally provided with mounting base；Pass through second holding section and described second Limit hole, the nearly reflector is fixed in the mounting base.

The nearly illuminator is equipped with LED installing plates, and the LED light on the LED installing plates, the nearly transmissive mirror position Immediately ahead of the LED light.

The material of the nearly transmissive mirror is acrylic PMMA.

The utility model can not only avoid existing structure and material from directly seeing internal structure clearly using transmissive mirror, very Inaesthetic shortcoming, and use the easy moulding of transmissive mirror；The utility model headlamp has broken the limited of original fixation Design method, the nearly lens of headlamp of design and the shape of conventional lenses are different, thus can design individual character, have feature, Beautiful headlamp.Dipped headlight causes internal structural space small using LED light, and the power of close to sources is big, and the thermal energy of generation is more, dissipates Good in thermal property is particularly significant for New pattern headlight.The structure of heat sink strip effectively eliminates the energy of light source generation in time. Prevent internal LED lamp circuit plate from overheating, add the service life of light source.And headlamp is being met by the design of reflector During luminous intensity distribution performance, the enclosure space of LED light is added, effectively reduces the temperature in the space.It is near that light distribution panel provides headlamp The "cut-off"line that light source needs, guarantee is provided for safety traffic.Close to sources can not only meet LED lamp light distribution performance, and Thermal diffusivity is a kind of close to sources of the good heat dissipation of special matching transmissive mirror design well.So that the utility model headlamp is novel, it is beautiful See, plasticity is strong, and improves the class of motorcycle entirety.

Brief description of the drawings

Fig. 1 is the front view of the utility model motor headlamp；

Fig. 2 is the sectional view of the utility model motor headlamp；

Fig. 3 is the decomposition diagram before the utility model motorcycle according to dipped headlight；

Fig. 4 is the combination diagram before the utility model motorcycle according to dipped headlight；

Fig. 5 is the utility model motorcycle headlamp dipped headlight transmissive mirror decomposition diagram；

Fig. 6 is the decomposition diagram before the utility model motorcycle according to high beam；

Fig. 7 is the combination diagram before the utility model motorcycle according to high beam；

Fig. 8 is the assembled sectional view before the utility model motorcycle according to high beam；

Fig. 9 is the utility model motorcycle headlamp air-penetrable waterproof structure sectional view.

In attached drawing：10 headlamps；100 lampshades；101 lamp housings；102 lamp source installing plates；20 dipped headlights；21 mounting bases； 210 mounting portions；211 first holding sections；212 screws；213 second holding sections；214 first pilot holes；22 retainer rings； 220 first buckles；221 first limit holes；23 nearly transmissive mirrors；230 nearly mirror bodies；231 mirror body fixed parts；24 is near reflective Bowl；240 second buckles；241 second limit holes；242 second pilot holes；25 light distribution panels；250 assembles posts；26 heat dissipation knots Structure；27 LED installing plates；270 LED light；30 high beams；31 snap rings；310 snap ring bodies；311 annular grooves；312 snap rings Seat；313 first mounting holes；314 second mounting holes；315 screws；32 remote transmissive mirrors；320 first fixed seats；321 is spacing Groove；322 mirror bodies；33 remote reflectors；330 second fixed seats；331 limited blocks；332 reflection walls；333 positioning columns；34 is remote LED installing plates；340 installing plates；341 remote illuminators；342 locating slots；343 first mounting holes；344 second mounting holes； 40 air-penetrable waterproof structures；41 air holes；410 ventilation mouths；411 ventilated membranes；412 fitting surfaces；42 porous plugs；420 is ventilative Fill in body；421 assembly sides；422 ventilative mouths；43 water fenders.

Embodiment

The utility model is described in further detail with reference to specific embodiment, it will be appreciated that described herein Preferred embodiment is only used for describing and explaining the present invention, and is not used to limit the utility model.

As shown in Figs. 1-2, this example is a kind of motorcycle headlamp 10, it includes lamp housing 101, matches somebody with somebody with the lamp housing 101 The lampshade 100 of conjunction, and it is arranged at the air-penetrable waterproof structure 40 of described lamp housing the top；Pacify in being equipped with lamp source in the lamp housing 101 Loading board 102, headlamp light source transmissive mirror is arranged in the lamp housing 101 and the lampshade 100, and is installed on the lamp source installing plate On 102；The headlamp light source is made of dipped headlight 20 and high beam 30, lower mask body be discussed in detail the dipped headlight 20 with it is remote Light lamp 30.

As in Figure 3-5, the dipped headlight 20 include mounting base 21, nearly transmissive mirror 23, retainer ring 22, nearly reflector 24, Light distribution panel 25, nearly illuminator, radiator structure 26；Described 21 one end of mounting base is equipped with mounting portion 210, its other end and the heat dissipation Structure 26 is fixed, and the nearly illuminator is fixed together with the radiator structure 26, and be located at the radiator structure 26 with it is described Between mounting portion 210；The nearly illuminator is equipped with LED installing plates 27, and the LED light 270 on the LED installing plates 27, LED light is welded on LED installing plates 27, and the nearly transmissive mirror 23 is located at immediately ahead of the LED light.Headlamp is caused using LED light Internal structural space is small.The power of dipped headlight is big, and the thermal energy of generation is more.Perfect heat-dissipating is particularly significant for headlamp.Dissipate Heat structure 26 effectively eliminates the energy of light source generation using heat sink strip in time, prevents internal LED light installing plate from overheating, and increases The service life of light source is added.

In being convexly equipped with least one first holding section 211 on the mounting portion 210；The retainer ring 22 is equipped with ring body （Do not marked in figure）And extend from the ring body to side it is at least one first buckle 220 and positioned at described first buckle The first limit hole 221 in 220；The nearly transmissive mirror 23, which is arranged, to be fixed in the ring body, and passes through the retainer ring 22 The first limit hole 221 and the 211 spacing fixation of the first holding section.

For the light distribution panel 25 positioned at described closely between illuminator and the mounting portion 210, it is near that light distribution panel 25 provides headlamp The "cut-off"line that light lamp needs, guarantee is provided for safety traffic.

The nearly transmissive mirror 23 is equipped with the nearly mirror body 230 of half drum organization, and half cydariform is by face of the cydariform along its axis Cutting forms；Stretch out to form mirror body fixed part 231 from the edge of the nearly mirror body 230, the retainer ring 22 is sheathed on institute State outside nearly mirror body 230, and be limited in the mirror body fixed part 231, the diameter of the mirror body fixed part 231 is more than the retainer ring The diameter of 22 ring body, easy to the spacing retainer ring 22.The first limit that the nearly transmissive mirror 23 passes through the retainer ring 22 Position hole 221 and the 211 spacing fixation of the first holding section, make the nearly transmissive mirror 23 be fixed with the mounting base 21.

The nearly reflector 24 is fixed with the mounting base 21, and positioned at the upper of the closely illuminator and the light distribution panel 25 Side；The mounting base 21 is equipped with the first pilot hole 214, and the nearly reflector 24 is equipped with corresponding with first pilot hole 214 Second pilot hole 242, the assembles post 250 coordinated with first, second 214,242 holes of assembling is equipped with the light distribution panel 25, is led to The assembles post 250 is crossed to fix the nearly reflector 24, the light distribution panel 25 with the mounting base 22.

The nearly reflector 24 be additionally provided with least one second buckle 240 and in the described second buckle 240 second Limit hole 241, is additionally provided with second holding section 213 spacing with second limit hole 241 in the mounting base 22.By described Second holding section 213 coordinates with second limit hole 241 to be fixed, by it is described by the assembles post 250 will it is described it is near instead Light bowl 24, the light distribution panel 25 and the mounting base 22 are fixed, and realize the nearly reflector 24 and the fixation of the mounting base 22. The nearly reflector 24 is the domes of 1/4 circle, and when the nearly reflector 24 is fixed with the mounting base 21, its one end is supported The mounting portion 210 is connected to, the other end is located at the surface of the LED light and the light distribution panel 25, for focusing on the LED light Light source it is gathered towards nearly transmissive mirror 23.The design of nearly reflector 24 is added when meeting the luminous intensity distribution performance of headlamp The enclosure space of LED light, effectively reduces the temperature in the space.

In being additionally provided with least one screw 212 on the mounting portion 210, the dim head lights lamp 20 passes through the screw 212 are fixed on lamp source installing plate 102.

Dipped headlight can not only meet LED lamp light distribution performance, and thermal diffusivity is good.It is that a kind of special matching transmissive mirror designs The dipped headlight of good heat dissipation so that headlamp is novel, and beautiful, plasticity is strong, improves the class of motorcycle entirety.

As shown in figs 6-8, the high beam 30 includes snap ring 31, remote transmissive mirror 32, remote reflector 33, remote illuminator 34； The snap ring 31 is equipped with snap ring body 310, and the retaining ring seat 312 positioned at 310 both sides of snap ring body；The remote transmissive mirror 32 Mirror body 322 equipped with hemisphere face shape, from outwardly extending first fixed seat 320 in 322 edge of mirror body, and positioned at described first The limiting slot 342 of fixed seat 320；The remote reflector 33 is bottom, top（Do not identified in figure）The frustum structure of opening, connection Bottom, open-topped reflection wall 332；The bottom opening is less than open top, forms horn-like structure；Opened from the top Outwardly extending second fixed seat 330 in mouth edge, and it is spacing positioned at second fixed seat 330 and the limiting slot 342 Limited block 331；In the present embodiment, the limited block 331 is arranged on the remote reflector, and the limiting slot 342 is arranged on described remote In transmissive mirror 32, both positions can also be exchanged in other embodiment, for example limited block 331 is arranged on the remote transmissive mirror On.

The diameter of the snap ring body 310 is respectively less than the diameter of first, second fixed seat 320,330, described first, The diameter of second fixed seat 320,330 is identical, both are oppositely arranged；The snap ring 31 is sheathed on the remote transmissive mirror and 32 institutes Remote reflector 33 is stated, then is limited in first, second fixed seat 320,330.The remote illuminator 34 is equipped with installing plate 340, and the LED light 341 being fixedly welded on the installing plate 340；At least one locating slot is equipped with the installing plate 340 342, the locating slot 342 is respectively arranged on the both sides of the LED light 341.The reflection wall 332 prolongs to the bottom opening direction The positioning column 333 to be formed and coordinated with least one locating slot 342 is stretched, the remote reflector 33 passes through the positioning column 333 positioning are fixed in the locating slot 342 of the installing plate 340, the LED light is opened positioned at the bottom of the remote reflector 33 In mouthful, the light source is focused on by remote reflector 33 injects the remote transmissive mirror 32.

The retaining ring seat 312 is respectively equipped with first, second mounting hole 313,314, and the installing plate 340 is equipped with and described the First, the second mounting hole 313,314 corresponding first, second mounting holes 343,344, described first, second is passed through by screw 315 313,314, first, second mounting hole 343,344 of mounting hole, by the snap ring 31, remote transmissive mirror 32, remote reflector 33 with it is described Remote illuminator 34 is fixed together, and by the way that the high beam 30 is fixed on light source installing plate 102 by screw 315, dress With simple.

The nearly transmissive mirror in the present embodiment, the material of remote transmissive mirror are acrylic PMMA.

The nearly lens of headlamp and the shape of remote lens of the present embodiment design are different, therefore can design individual character, have Feature, beautiful headlamp.The remote transmissive mirror of this high beam is the product of hemispherical transmissive mirror design so that headlamp is novel, Beauty, plasticity is strong, improves the class of motorcycle entirety.The dipped headlight 20 is fixed on light source installing plate by screw 212 On 102, dipped beam transmissive mirror 23 is assemblied on nearly illuminator by the thrust of retainer ring 22, and overall assembling is simple.The distance light Lamp 30 is fixed on light source installing plate 102 by screw 315, and distance light transmissive mirror 32 is assemblied in remote hair by the thrust of snap ring 31 In body of light 34, snap ring 31 is fixed on remote illuminator 34 by screw 315.Overall assembling is simple.The manufacture cost of transmissive mirror is low And versatility is good.Assembling is light.Break headlamp and design conventional limitation.For motorcycle appearance design provide one it is bright Point.

As shown in Figure 1, Figure 2, shown in Fig. 9, a kind of motorcycle headlamp air-penetrable waterproof structure 40 for two be symmetrically arranged in The top of the car shell 101, its porous plug 42 for including air hole 41 respectively, being connected with the air hole 41, and positioned at institute State air hole 41, the water fender 43 of the top of the porous plug 42.

One end of the air hole 41 is connected with car shell 101, its other end is from one end of the air hole 41 to away from institute The direction for stating car shell 101 extends to form, and the ventilation mouth 410 positioned at 41 end of air hole, the ventilation mouth 410 are exposed to The outside of car shell 101；The air hole 41 is additionally provided with ventilated membrane 411, and the ventilated membrane 411 is installed on the ventilation mouth 410, this Ventilated membrane 411 described in embodiment is sticked to by glue on the ventilation mouth 410 of the air hole 41.Ventilated membrane 411 is dedicated film, With molecule by the intransitable characteristic of compound, therefore the aqueous vapor inside LED light by thermal evaporation can be excluded by ventilated membrane, And the water, dirt outside LED light cannot be entered in LED light by ventilated membrane, it is blocked in outside lamp housing.

The structure of the porous plug 42 is " 7 " font, and the porous plug 42 is equipped with porous plug body 420, is breathed freely from described The assembly side 421 that plug body 420 is extended to form to one end, and the ventilative mouth positioned at 420 other end of porous plug body 422；" 7 " word moulding of the porous plug 42 largely reduces the entrance of water, dirt, because breathing freely when water, dirt enter with air During mouth, stopped by the circular arc of porous plug, can also drop when water, the dirt of accumulation reach a certain amount of because of center of gravity power.

The porous plug 42 is elastomeric material, and the outside diameter of the air hole 41 is more than the internal diameter of the assembly side 421, works as institute When stating the internal diameter of assembly side 421 and being sheathed on the outside diameter of the air hole 41, the internal diameter of the assembly side 421 and the air hole 41 The face that is in contact of outside diameter be fitting surface 412, and the assembly side 421 is realized with the air hole 41 and is interference fitted.The dress On the outer wall for the other end for being sheathed on the air hole 41 with end 421, the ventilation mouth 410 is placed in the porous plug 42. The internal diameter of the assembly side 421 is identical with the internal diameter size of the porous plug body 420, and the outside diameter of the assembly side 421 is more than The outside diameter of the porous plug body 420, when the assembly side 421 is sheathed on the outer wall of the other end of the air hole 41, The installation strength between the assembly side 421 and the air hole 41 can be strengthened.

The water fender 43 and air hole 41 are integrally formed with lamp housing 101 by mould together.

The air hole 41 is two, is symmetrically arranged in the top of the car shell 101；The porous plug 42 is two It is a, respectively fixation is arranged with the air hole 41；The water fender 43 is two, is symmetrically arranged in the car shell 101 Top, and respectively positioned at the air hole 41, the top of the porous plug 42, and the fitting surface 412 is blocked, water fender 23 is set Meter effectively prevents water to enter from air hole 41 and the fitting surface 412 of porous plug 42 on air hole 41.Design two is right The air hole 41 of title is more readily formed air circulating inside lamp, and air hole 41 is designed in the top of lamp housing 101, more Be conducive to the discharge of LED light hot inside air（Because hot-air is in the top of cold air, therefore the air of lamp inner upper is temperature Spend highest）, so as to successfully complete the exchange of LED light hot inside air and the outer cold air of lamp.

A kind of motorcycle headlamp air-penetrable waterproof structure of the utility model, to solve problem of the prior art, in lamp housing 101 Back increases by two air holes 41.Because LED light, it is necessary to be designed to structure that is ventilative but cannot intaking, extend LED light Service life.

The structure of porous plug 42 is designed to that " 7 " word moulding largely reduces the entrance of water, dirt, because when water, dirt are with sky When gas enters ventilative mouth, stopped by the circular arc of porous plug, can also drop when water, the dirt of accumulation reach a certain amount of because of center of gravity power.

Motorcycle headlamp air-penetrable waterproof structure described in the utility model can breathe freely, moreover it is possible to water proof and dust proof.Solves rain Its phenomenon to haze, and the service life for extending headlamp also improves the security that motorcycle is travelled in the rainy day.

It is to illustrate the utility model example that above-described embodiment of the utility model, which is only, and is not to this reality With the restriction of new embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description To make other various forms of changes and variation.Here all embodiments can not be exhaustive.It is every to belong to this reality Row with new technical solution changes and variations that derived from still in the scope of protection of the utility model.

Claims (9)

1. a kind of motorcycle headlamp dipped headlight, it includes mounting base, nearly transmissive mirror, retainer ring, nearly illuminator, radiator structure； The retainer ring is equipped with ring body and at least one first buckle extended from the ring body to one end and positioned at described first The first limit hole in buckle, described mounting base one end are convexly equipped with least one the first clamping coordinated with first limit hole Portion, the other end of the mounting base are fixed with the radiator structure；The nearly transmissive mirror is equipped with the nearly mirror body of half drum organization, institute Half cydariform is stated to be formed along the face cutting of its axis by cydariform；Stretch out to form mirror body fixed part from the edge of the nearly mirror body, The Fixing shrink ring is arranged on outside the nearly mirror body, and is limited in the mirror body fixed part, and the first limit for passing through the retainer ring Position hole and the spacing fixation in the first holding section, make the nearly transmissive mirror be fixed with the mounting base.

2. motorcycle headlamp dipped headlight as claimed in claim 1, it is characterised in that：The diameter of the ring body is less than described The diameter of mirror body fixed part, realizes that the retainer ring is limited in the mirror body fixed part.

3. motorcycle headlamp dipped headlight as claimed in claim 1, it is characterised in that：Mounting base one end of the dipped headlight is set There is mounting portion, first holding section is arranged on the mounting portion, and the nearly transmissive mirror is fixed on one end of the mounting portion.

4. motorcycle headlamp dipped headlight as claimed in claim 3, it is characterised in that：The nearly illuminator is tied with the heat dissipation Structure is fixed together, and between the radiator structure and the mounting portion.

5. motorcycle headlamp dipped headlight as claimed in claim 1, it is characterised in that：The dipped headlight is further included positioned at nearly hair Light distribution panel between body of light and the mounting portion；The dipped headlight further includes nearly reflector, the nearly reflector and the installation Seat is fixed and positioned at nearly illuminator, the top of the light distribution panel.

6. motorcycle headlamp dipped headlight as claimed in claim 5, it is characterised in that：The mounting base is equipped with the first assembling Hole, the nearly reflector are equipped with the second pilot hole corresponding with first pilot hole, in the light distribution panel equipped with first, The assembles post that second pilot hole coordinates, is consolidated the nearly reflector, the light distribution panel with the mounting base by the assembles post It is fixed.

7. motorcycle headlamp dipped headlight as claimed in claim 6, it is characterised in that：The nearly reflector is additionally provided with least one A second buckle and the second limit hole in the described second buckle, are additionally provided with and second limit hole in the mounting base The second spacing holding section；By second holding section and second limit hole, the nearly reflector is fixed on described In mounting base.

8. motorcycle headlamp dipped headlight as claimed in claim 1, it is characterised in that：The nearly illuminator is installed equipped with LED Plate, and the LED light on the LED installing plates, the nearly transmissive mirror are located at immediately ahead of the LED light.

9. such as claim 1-8 any one of them motorcycle headlamp dipped headlights, it is characterised in that：The material of the nearly transmissive mirror Material is acrylic PMMA.