CN2560921Y

CN2560921Y - Position-measuring device

Info

Publication number: CN2560921Y
Application number: CN 02242453
Authority: CN
Inventors: 张燋虎
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-08
Filing date: 2002-08-08
Publication date: 2003-07-16
Anticipated expiration: 2012-08-08

Abstract

The utility model discloses an azimuth measurement device. The utility model comprises a base which is provided with a first terminal, a north arrow which is arranged on the base, a top cover, which is pivoted on the first terminal of the base. The top cover can be closed on the base, in order to cover the north arrow. A reverberating chamber is arranged inside the top cover. The top cover is also provided with a mouth open, which the user can blow air into. An air path is arranged inside the top cover, which is connected with the mouth open and the reverberating chamber. In addition, the top cover is provided with a soniferous part. The soniferous part is positioned in the air path. When the user blows into the mouth open, the blown gas passes through the soniferous part and makes sound.

Description

The azimuthal measuring device

Technical field

The utility model relates to the azimuthal measuring device with magnetic guide part, can blow and the azimuthal measuring device of generation birdie by mouth especially in regard to a kind of.

Background technology

The magnetic that known north arrow, its tool will have a pointer shape guide part, hold this guides part bottom center thimble, reach a box body that is installed with this thimble and this guide part; This guide part is because of being subjected to the induction in magnetic field of the earth, and can keep a fixing sensing on this thimble, that is, these guides part two ends are pointed to be respectively the south, the north of the earth.

Differentiate the orientation of an objective for the ease of the user, usually print on the box body of above-mentioned known north arrow and be provided with an azimuth circle, by rotating this box body, make the south of this index dial, the two ends that position, north scale is aimed at this guide part, again between the thimble of this objective of interpretation and this north arrow the superimposed scale on this index dial of virtual formation straight line, be the position angle of this objective.

In order to allow the user differentiate the orientation of an objective more easily, a kind of known azimuthal measuring device 1 is arranged then as shown in Figure 1, its mainly be establish a base 10, be arranged at loam cake 30 and that north arrow 20, on this base 10 is hubbed at these base 20 1 ends be hubbed at this base 10 in addition aimings of end observe 40.Wherein, this aiming is observed 40 top section and is offered one and observe and look seam 41, and this aiming observes in 40 the body portion and planted convex lens 42, again, offers an aiming groove 31 on this loam cake 30.By this, the user can observe eyes and look seam 31 near this, and through this observe look the seam 31, look through the aiming groove 31 of this loam cake 30 and the line of vision objective, finish the action in the place that aims at the mark, again sight is looked index dial, read the scale index on this scale, can learn the orientation of this objective through these convex lens 42 and this pointer 20 of line of vision.

Above-mentioned known azimuthal measurement apparatus, use when generally being movable out of doors, for example: mountain-climbing, camping etc., and in order to allow azimuthal measurement apparatus have more function, then there is industry to release azimuthal measurement apparatus with ruler, take off as U.S. D411121, D349066, D369982 patent, it is except the function with azimuthal measuring, more can be in order to measure the distance on the map, or be provided with ruling, be combined with the azimuthal measurement apparatus of ruler by this kind, person capable of reducing using is required quantity of carrying apparatus when outdoor activities.In addition, in outdoor activities, except the measurement of bearing tool such as mountain-climbing, camping, other utensil that need carry is still arranged, as electric torch, whistle etc., therefore, if the required utensil of above-mentioned outdoor activities can be combined as a whole, with person's capable of reducing using burden.

In addition, above-mentioned known azimuthal measurement apparatus still exists following shortcoming in the use, that is:

One, this is observed and looks seam, be one to observe the slot that extends certain-length from this top downwards in this aiming, close this of user's eyes observed when looking seam, the some of these eyes is to be positioned at this to observe and look the side of sewing on, so that the user was when line of vision should aim at seam and objective, these eyes are disturbed by other scenery easily, and are difficult for the place that aims at the mark.

Two, the seam width of the aiming of above-mentioned known azimuthal measuring device seam is little, uses and avoids the user to produce too big error when run-home; Yet just because seam width of this aiming seam is little, the eyes that cause the user are observed from this and are looked the seam line of vision should aiming seam the time, and the reflective phenomenon that peripheral region is stitched in this aiming of this loam cake bottom surface can disturb the user, the difficulty of increase user when run-home.

The utility model content

Fundamental purpose of the present utility model is to provide a kind of azimuthal measurement apparatus, and it has more the function that can send birdie by the mouth air blowing except the function with measurement of bearing.

Another purpose of the present utility model is to provide an azimuthal measurement apparatus, more helps user's run-home.

For realizing above-mentioned utility model purpose, a kind of azimuthal measuring device that the utility model provides, it includes:

One base, this base have one first end;

One north arrow is to be located on this base;

One loam cake is to be hubbed on first end of this base, uses can be covered on this base and cover this north arrow; Be formed with a resonant chamber in this loam cake, and should on cover and be formed with one and connect the mouth mouth, use to supply the involutory air blowing of mouth; More being formed with an air flue in this loam cake, is to be communicated with this inflatable mouth and this resonant chamber respectively, and this loam cake has a pronunciation portion, is to be arranged in this air flue, and when using mouth this being connect the mouth mouth and blows, the gas that blows out can be flowed through this pronunciation portion and be produced sound.

Described azimuthal measuring device, wherein, this loam cake is to be formed by one first member and the butt joint of one second member, makes to form therebetween to connect mouth mouth, air flue, pronunciation portion and resonant chamber.

Described azimuthal measuring device, wherein, this of this base first end is provided with one first pivot seat, and this loam cake has a pivot end, and is hubbed at this pivot end mat one pivot on the first pivot seat of this base.

Described azimuthal measuring device, wherein, this of this base first end is provided with one first pivot seat; This first member has a frame and connects end, and is to be hubbed on the first pivot seat of this base with this pivot end mat one pivot, uses that this loam cake is hubbed on this base.

Described azimuthal measuring device, wherein, on this first member, side direction has protruded out a protruding lip in the place, opposite end of this pivot end; Convex with one first on the end face of this first member in conjunction with flange, be that the side end face from this protruding lip is the extension of " U " shape on this end face, and wraparound ends to this side end face, and form a breach, make this form a groove in conjunction with flange institute area surrounded in this side end face; This first member has more a triangular bump, is to be convexly set in this groove near this indentation, there, and it has an end face and is oblique extension one preset distance from the bottom surface of this groove upwards and towards this groove inside near this indentation, there; The periphery profile of this second member is similar in appearance to this first periphery profile in conjunction with flange, along its periphery protrude out downwards one in order to be engaged in this first in conjunction with second on the flange in conjunction with flange, and this second joint flange forms a breach in a side of this second member; This second member be with its second in conjunction with flange engages in this first member first in conjunction with flange on, this second member is incorporated on the end face of this first member, and makes between this first member and form: a side of a protruding lip by this first member, this second member is constituted connects mouth; One by this first and second member breach constituted connects the mouth mouth; By this air flue that is constituted between this end face of this triangle convex and this second member bottom surface; And, by this groove and this formed this resonant chamber in second member bottom surface of this first member; In addition, this top surface ends place that corresponds to this triangle convex on this second member offers two ventholes arranged side by side, respectively a hole wall of this venthole just is positioned at the end of this air flue, use in an air-flow and connect that the mouth mouth enters in this air flue and when this two venthole flows out certainly from this, respectively this hole wall can cause this air current flow to have some setbacks, and then air-flow is sounded in this place, form this pronunciation portion.

Described azimuthal measuring device, wherein, this base has more one second end, be the phase terminal place that is positioned at this first end, and second end is formed with one second pivot seat; In addition, more include an aiming and observe, it has a pivot end, and is hubbed at this pivot end on the second pivot seat of this base; Again, this aiming is observed and is offered an anvil window.

Described azimuthal measuring device, wherein, this aiming is observed and is had more an anvil and look portion, is generally to be tabular, and this anvil window is to be located at this to observe and be strip in the portion of looking.

Described azimuthal measuring device, wherein, this aiming is observed and is provided with a circular open, plants a biconvex lens with enlargement ratio on this opening.

Described azimuthal measuring device, wherein, this sight hole forms one first opening on the one side that this loam cake is observed towards this aiming, form one first opening on this loam cake one side that this aiming is observed dorsad, and the bore of this first opening is greater than this second opening.

Described azimuthal measuring device, wherein, the hole wall of this sight hole is that the opening edge by this first opening is gradually-reducing shape and extends to this second opening edge.

Described azimuthal measuring device wherein, covers on this and offers sight hole, is opened in first hole on this first member and second hole that is opened on this second member is formed by one; This first hole is formed with one first opening on the bottom surface of this first member, and it is to be gradually-reducing shape along the opening edge of this first opening to the end face of this first member to extend a predetermined depth that this first hole has a hole wall, and a predetermined height forms second opening of an aperture less than this first opening to this end face; The aperture in this second hole and hole shape are second openings that is same as this first hole; By this, when this second member was incorporated on this first member, this second hole just was engaged in second opening part in this first hole, forms this sight hole.

Described azimuthal measuring device, wherein, this north arrow, be have a housing, an index dial is formed; Wherein, this housing is to be formed by a disc pedestal and a circular transparent cover body butt joint, and has planted a thimble on the center of this pedestal; This index dial is made up of a disc, a magnetic part, a pearl seat and a pearl body; Establish orientation degree and sign along this disc periphery seal, and the center of this disc is provided with a containing hole; This magnetic part is to be strip, and its middle position also offers a perforation, and this magnetic part is to be attached on the bottom surface of this disc, and its perforation and the containing hole of this disc are positioned on the line of the same center of circle; This pearl seat is to be arranged in this containing hole, this perforation to be incorporated on this disc, and it has a perforation that runs through Qi Ding, the end; This pearl body is that plug is located in the perforation of this pearl seat; This index dial is to be arranged in this housing, this thimble is penetrated from the perforation of this pearl seat below in this perforation and hold this pearl body, and this index dial can freely be rotated on this thimble because of holding of this thimble, more because of the effect of this magnetic part and earth magnetic field boundary, and make this index dial can show the orientation state of the earth and keep.

Described azimuthal measuring device wherein, more is filled with in this housing and uses so that the liquid that this index dial is not easy to rock.

Described azimuthal measuring device, wherein, this north arrow more includes a circlets and a planar lens; This circlets is all side upper edges that are incorporated into this housing, and this planar lens then is to be incorporated on this circlets.

Description of drawings

Fig. 1 is a kind of outside drawing of known azimuthal measuring device;

Fig. 2 is the outside drawing of the utility model one preferred embodiment;

Fig. 3 is a component decomposition map embodiment illustrated in fig. 2;

Fig. 4 is a top view embodiment illustrated in fig. 2;

Fig. 5 is the cut-open view along 5-5 line direction among Fig. 4;

Fig. 6 is the cut-open view along 6-6 line direction among Fig. 4;

Fig. 7 is the outside drawing of part member embodiment illustrated in fig. 2 under the state of another location.

Embodiment

In order to be illustrated more clearly in the utility model, to lift preferred embodiment now, and cooperate following accompanying drawing to describe in detail:

See also Fig. 2 to Fig. 6, the azimuthal measurement apparatus 2 of the utility model one preferred embodiment is to include;

One base 50, its inner formation one accommodation space 51, and its end face forms this accommodation space 51 of an open communication; This base 50 has one first end and is positioned at the second distolateral relatively end, and this first end place is formed with the first pivot seat 52, and this second end place then is formed with one second pivot seat 53;

One north arrow 60 is to have a housing 61, an index dial 62, a circlets 63 and a planar lens 64 to form.Wherein, this housing 61 is to be formed by a disc pedestal 611 and circular transparent cover body 612 butt joints, and has planted a thimble 613 on the center of this pedestal 611.This index dial 62 is made up of a disc 621, a magnetic part 622, a pearl seat 623 and a pearl body 624; Establish orientation degree and sign along this disc 621 peripheries seal, and the center of this disc 621 is provided with a containing hole 625; This magnetic part 622 is to be strip, and its middle position also offers a perforation 626, and this magnetic part 622 is to be attached on the bottom surface of this disc 621, and its perforation 626 and the containing hole 625 of this disc 621 are positioned on the line of the same center of circle; This pearl seat 623 is to be arranged in this containing hole 625, this perforation 626 to be incorporated on this disc 621, and it has a perforation 627 that runs through Qi Ding, the end; This pearl body 624 is that plug is located in the perforation 627 of this pearl seat 623; This index dial 62 is to be arranged in this housing 61, this thimble 613 is penetrated from perforation 627 belows of this pearl seat 623 in this perforation 627 and hold this pearl body 624, and this index dial 62 can freely be rotated on this thimble 613 because of holding of this thimble 613, more because of the effect of this magnetic part 622, and make this index dial 61 can show the orientation state of the earth and keep it with the magnetic field of the earth.In addition, more be filled with usefulness in this housing 61 so that the liquid that this index dial 62 is not easy to rock.This circlets 63 is all side upper edges that are incorporated into this housing 61, and this planar lens 64 then is to be incorporated on this circlets.

One loam cake 70, it has first member 71 and one second member 72.

This first member 71 generally is the dome shape, it has a pivot end 711, an end face and a bottom surface (i.e. the back side of this loam cake), and be to meet end 711 mats one pivot A with this frame to be hubbed on the first pivot seat 52 of this base 50, use making this first member 71 can be on this base 50, do on the end face that its bottom surface is covered on this base 50 or leave the swing of these base 50 end faces.On this first member 71, side direction has protruded out a protruding lip 712 in the place, opposite end of this pivot end 711; Convex with one first on the end face of this first member 71 in conjunction with flange 713, be on this end face, to be " U " shape to extend from the side end face of this protruding lip 712, and wraparound ends to this side end face, and forms a breach 714 in this side end face, makes this form a groove in conjunction with 713 area surrounded of flange; This first member 71 has more a triangular bump 715, is to be convexly set in this groove near these breach 714 places, and it has an end face and is oblique extension one preset distance from the bottom surface of this groove upwards and towards this groove inside near these breach 714 places.

The periphery profile of this second member 72 is similar in appearance to this first periphery profile in conjunction with flange 713, along its periphery protrude out downwards one in order to be engaged in this first in conjunction with second on the flange 713 in conjunction with flange 721, and this second joint flange 721 forms a breach 722 in a side of this second member 72.This second member 72 be with its second in conjunction with flange 721 be engaged in this first member 71 first in conjunction with on the flange 713, this second member 72 is incorporated on the end face of this first member 71, and makes 71 formation of this first member: a side of a protruding lip 712 by this first member 71, this second member 72 is constituted connects mouth 73; One breach 714,722 by this first and

second member

71,72 is constituted connects mouth mouth 731; One by the air flue 74 that is constituted between this end face of this triangle convex 715 and this second member, 72 bottom surfaces; And, this groove and this formed resonant chamber 75 in second member, 72 bottom surfaces by this first member 71.In addition, this top surface ends place that corresponds to this triangle convex 714 on this second member 72 offers two ventholes 723 arranged side by side, respectively a hole wall of this venthole 723 just is positioned at the end of this air flue 74, use in an air-flow and connect that mouth mouth 731 enters in the air flue 74 and when this two venthole 723 flows out certainly from this, respectively this hole wall can cause this air current flow to have some setbacks, and then air-flow is sounded in this place, form a pronunciation portion.

Again, this loam cake offers a sight hole 76, and this sight hole 76 is opened in first hole 761 on this first member 71 by one and second hole 762 that is opened on this second member 72 is formed; This first hole 761 is formed with one first opening 763 on the bottom surface of this first member 71, and it is to be gradually-reducing shape along the opening edge of this first opening 763 to the end face of this first member 71 to extend a predetermined depth that this first hole 761 has a hole wall, and a predetermined height forms second opening 764 of an aperture less than this first opening 763 to this end face; The aperture in this second hole 762 and hole shape are second openings 764 that is same as this first hole 761; By this, when this second member 72 was incorporated on this first member 71, this second hole 762 just was engaged in second opening, 764 places in this first hole 761, forms this sight hole 76.

One aiming observes 80, it has a pivot end 81, a top and a bottom, and be hubbed at this pivot end 81 on the second pivot seat 53 of this base 50, use it can be put in the pivot of doing on this base 50 between a primary importance and a second place, wherein, this primary importance is meant that this aiming observes 80 bottom and amplexiform position (seeing also Fig. 7) on the top of this base 50, and this second place is meant that then this aiming observes 80 and be the position (seeing also Fig. 2) of 90 degree angles approximately with this base 50.This aiming is observed and is formed with a circular open 82 that runs through Qi Ding, bottom on 80 in addition, plants a biconvex lens 90 with enlargement ratio on this opening; This aiming is observed to have more on 80 and is observed the portion of looking 83, is generally to be tabular, and this is observed and offers a strip peepsight 831 in the portion of looking 83.

More than, be the structure explanation of the azimuthal measuring device of the utility model one preferred embodiment.Then, it is as follows to introduce the use-pattern of this Lentoid type compass 2 now;

At first, this Lentoid type compass 2 is to be collapse state when not using, and wherein, it is to be positioned at above-mentioned primary importance that this aiming observes 80, that is it is to amplexiform on the top of this base 50 that 80 bottom is observed in this aiming; And this loam cake 70 is the tops that are covered on this base 50, uses top and this aiming of having accommodated this base 50 and observes 80, makes whole Lentoid type compass 2 form a state that folds.

When desire is used, be earlier this loam cake 70 to be lifted off this base 50 end faces, make itself and this base 50 form the angle (as shown in Figure 2) of about 90 degree, again this aiming is observed 80 and lift off this base 50 end faces, and make itself and this base 50 be suitable angle (as shown in Figure 2).80 a glances near the user are observed in this aiming, make this peepsight 831 be positioned at this appropriate position, dead ahead; Look through the sight hole 76 of this peepsight 831, this loam cake 70 and line of vision one object with this eyesight, look through being positioned at this biconvex lens 90 of these peepsight 831 belows with this again, see through this biconvex lens 90 and see index dial 621 to this north arrow 60, and read azimuth scale on this index dial 621, promptly know the orientation angles of this object with respect to the user.Because this a part of use-pattern is identical with general known Lentoid type compass, do not give unnecessary details so do not add at this.

What this proposed especially be, because this anvil window 831 is to be opened in this aiming to observe 80 tabular observing in the portion of looking 83 and be poroid, so user's eyes are during near this anvil window 831, part was covered beyond this eye pupil partly will be subjected to this this peepsight 831 of observing the portion of looking 83 fully, when making this eyes line of vision target, be not subject to other scenery and disturb.

Moreover, because first opening 763 of this sight hole 76 is to observe 80 towards this aiming, and sight hole 76 is in the hole wall of 764 of this first opening 763 and this second openings, be to be gradually-reducing shape to these second opening, 764 directions by this first opening 763, therefore, the wall of this hole wall and user's direction of visual lines are to be non-perpendicular direction, thereby can not produce reflective phenomenon, and can not disturb user's run-home.

Except above-mentioned general user, the user more can mouth contain this this connect mouth 73, blow and this is connect mouth mouth 731, make air-flow through this air flue 74 flow through this pronunciation portion and certainly this two pore 723 flow out, and produce sound in this pronunciation portion, through the sympathetic response of this resonant chamber 75 and the shape birdie.By this, this azimuthal measurement apparatus 2 can have the function of whistle, can send birdie as contact message when the field; Therefore, the user just must not carry whistle, the utensil quantity of carrying in the time of can reducing outdoor sports in addition again.

Claims

1, a kind of azimuthal measuring device is characterized in that it includes:

One base, this base have one first end;

One north arrow is to be located on this base;

One loam cake is to be hubbed on first end of this base; Be formed with a resonant chamber in this loam cake, and should on cover and be formed with one and connect the mouth mouth; More being formed with an air flue in this loam cake, is to be communicated with this inflatable mouth and this resonant chamber respectively, and this loam cake has a pronunciation portion, is to be arranged in this air flue.

2, azimuthal measuring device according to claim 1 is characterized in that wherein, and this loam cake is to be formed by one first member and the butt joint of one second member, forms therebetween and connects mouth mouth, air flue, pronunciation portion and resonant chamber.

3, azimuthal measuring device according to claim 1 is characterized in that wherein, and this of this base first end is provided with one first pivot seat, and this loam cake has a pivot end, and is hubbed at this pivot end mat one pivot on the first pivot seat of this base.

4, azimuthal measuring device according to claim 2 is characterized in that wherein, and this of this base first end is provided with one first pivot seat; This first member has a frame and connects end, and is to be hubbed on the first pivot seat of this base with this pivot end mat one pivot, uses that this loam cake is hubbed on this base.

5, azimuthal measuring device according to claim 2 is characterized in that wherein, and on this first member, side direction has protruded out a protruding lip in the place, opposite end of this pivot end; Convex with one first on the end face of this first member in conjunction with flange, be that the side end face from this protruding lip is the extension of " U " shape on this end face, and wraparound ends to this side end face, and form a breach in this side end face, this forms a groove in conjunction with flange institute area surrounded; This first member has more a triangular bump, is to be convexly set in this groove near this indentation, there, and it has an end face and is oblique extension one preset distance from the bottom surface of this groove upwards and towards this groove inside near this indentation, there; The periphery profile of this second member is similar in appearance to this first periphery profile in conjunction with flange, along its periphery protrude out downwards one in order to be engaged in this first in conjunction with second on the flange in conjunction with flange, and this second joint flange forms a breach in a side of this second member; This second member be with its second in conjunction with flange engages in this first member first in conjunction with flange on, this second member is incorporated on the end face of this first member, and makes between this first member and form: a side of a protruding lip by this first member, this second member is constituted connects mouth; One by this first and second member breach constituted connects the mouth mouth; By this air flue that is constituted between this end face of this triangle convex and this second member bottom surface; And, by this groove and this formed this resonant chamber in second member bottom surface of this first member; In addition, this top surface ends place that corresponds to this triangle convex on this second member offers two ventholes arranged side by side, and respectively a hole wall of this venthole just is positioned at the end of this air flue.

6, azimuthal measuring device according to claim 3 is characterized in that wherein, and this base has more one second end, be the phase terminal place that is positioned at this first end, and second end is formed with one second pivot seat; In addition, more include an aiming and observe, it has a pivot end, and is hubbed at this pivot end on the second pivot seat of this base; Again, this aiming is observed and is offered an anvil window.

7, azimuthal measuring device according to claim 6 is characterized in that wherein, and this aiming is observed and had more an anvil and look portion, is generally to be tabular, and this anvil window is to be located at this to observe and be strip in the portion of looking.

8, azimuthal measuring device according to claim 6 is characterized in that wherein, and this aiming is observed and is provided with a circular open, plants a biconvex lens with enlargement ratio on this opening.

9, azimuthal measuring device according to claim 6, it is characterized in that wherein, this sight hole forms one first opening on the one side that this loam cake is observed towards this aiming, form one first opening on this loam cake one side that this aiming is observed dorsad, and the bore of this first opening is greater than this second opening.

10, azimuthal measuring device according to claim 9 is characterized in that wherein, and the hole wall of this sight hole is that the opening edge by this first opening is gradually-reducing shape and extends to this second opening edge.

11, azimuthal measuring device according to claim 2 is characterized in that wherein, covers on this and offers sight hole, is opened in first hole on this first member and second hole that is opened on this second member is formed by one; This first hole is formed with one first opening on the bottom surface of this first member, and it is to be gradually-reducing shape along the opening edge of this first opening to the end face of this first member to extend a predetermined depth that this first hole has a hole wall, and a predetermined height forms second opening of an aperture less than this first opening to this end face; The aperture in this second hole and hole shape are second openings that is same as this first hole; When this second member was incorporated on this first member, this second hole just was engaged in second opening part in this first hole, forms this sight hole.

12, azimuthal measuring device according to claim 1 is characterized in that wherein, this north arrow, be have a housing, an index dial is formed; Wherein, this housing is to be formed by a disc pedestal and a circular transparent cover body butt joint, and has planted a thimble on the center of this pedestal; This index dial is made up of a disc, a magnetic part, a pearl seat and a pearl body; Establish orientation degree and sign along this disc periphery seal, and the center of this disc is provided with a containing hole; This magnetic part is to be strip, and its middle position also offers a perforation, and this magnetic part is to be attached on the bottom surface of this disc, and its perforation and the containing hole of this disc are positioned on the line of the same center of circle; This pearl seat is to be arranged in this containing hole, this perforation to be incorporated on this disc, and it has a perforation that runs through Qi Ding, the end; This pearl body is that plug is located in the perforation of this pearl seat; This index dial is to be arranged in this housing, this thimble is penetrated from the perforation of this pearl seat below in this perforation and holds this pearl body.

13, azimuthal measuring device according to claim 12 is characterized in that wherein, more is filled with liquid in this housing.

14, azimuthal measuring device according to claim 12 is characterized in that wherein, and this north arrow more includes a circlets and a planar lens; This circlets is all side upper edges that are incorporated into this housing, and this planar lens then is to be incorporated on this circlets.