CN1200218C

CN1200218C - lighting fixture

Info

Publication number: CN1200218C
Application number: CNB018104479A
Authority: CN
Inventors: 托马斯·布罗克曼; 彼得·I·W·普莱斯纳; 克里斯琴·波尔森
Original assignee: Nv Adb Ttv Technologies Sa
Current assignee: ADBTTV科技股份有限公司 NV; Nv Adb Ttv Technologies Sa
Priority date: 2000-05-03
Filing date: 2001-05-02
Publication date: 2005-05-04
Anticipated expiration: 2021-05-02
Also published as: AU5614501A; CA2407982C; CN1432117A; JP3894796B2; CA2407982A1; JP2003532271A; AU2001256145B2; HK1056007A1; WO2001084043A1; DE60129048T2; EP1409920B1; EP1409920A1; ATE365297T1; DE60129048D1

Abstract

A lighting fixture (1) projects a light beam for spot lighting in theater stages, cinema and television studios and the like. The fixture includes a light source (20) at one end of a housing (25) having a light beam exit aperture (24) at the opposite end thereof, the light source and aperture being arranged generally concentric with a longitudinal or optical axis (19) of the lighting fixture. One or more beam-shaping blades (30,31,32,33), and preferably also other light beam influencing elements, such as one or more lenses (22,23), an iris (28), and/or a pattern or gobo (29), are arranged along the path of the light beam along the longitudinal axis through the housing from the light source to the aperture. The position of the beam-shaping blade or blades, and preferably of all the light beam influencing elements, is adjustable relative to the longitudinal axis. The fixture produces a well-defined light beam or light cone with a geometry, angle of conicity and focal point that may be altered manually or by remote control.

Description

Illuminating equipment

Technical field

The present invention relates to a kind of illuminating equipment, be used for projecting beam, and be used for spotlighting in conjunction with theater stage, cinema and television stadio and similar site, this illuminating equipment comprises:

Light source is configured in an end place of shell, and this shell has light beam and penetrates eyelet at its opposed end place, and it is concentric with the longitudinal axis or the optical axis of illuminating equipment substantially that light source becomes with this eyelet arrangement;

Light beam influences device, at least comprise one or more, preferably four, the beam-shaping shadow shield also comprises also that preferably other light beams influence device, such as one or more lens and/or an aperture and/or a grating or gobo, be used to influence the light beam that sends by light source and disposed along the path of light beam along the described longitudinal axis that from the light source to the eyelet, passes shell; And

Adjusting device is used for regulating described at least one or a plurality of beam-shaping shadow shield and preferably regulating all described positions that influence device with respect to the described longitudinal axis.

Background technology

As above determined, the purposes of illuminating equipment is light beam or the light cone that produces sharp outline, and its geometry, cone angle and focus can be changed with manual mode or by remote control.Illuminating equipment generally will comprise light source, reflector, have beam-shaping gate (gate), a grating or anti-dazzling screen, an aperture, a condenser lens, zoom lens and a filter and a suspended structure of beam-shaping shadow shield, and the latter allows illuminating equipment to pivot on vertical and horizontal direction.

The visible part of the light that is sent by light source is collected by reflector and is sent to aperture, anti-dazzling screen and beam-shaping gate as collimated light beam.Pass the beam split coating of reflector and be radiated on the surface, inside of the shell of light source from the infrared part of the radiation of light source, heat is sent to the outer surface of shell, and the latter has cooling ribs, to be used for that heat is diffused to surrounding environment.

Often need to determine the geometry of light beam, and this is by means of the zoom lens that change the light cone cone angle and by being shaped by means of the beam-shaping gate that has the beam-shaping shadow shield or excising the periphery of (cut) light beam, so that be achieved such as square, triangle, various geometric figures such as trapezoidal.Lens are by the eyelet relative with light source of shell and by at the filter of illuminating equipment front end ray cast being gone out.Importantly, the different elements that influences beam shape and other features as far as possible accurately works, even in the influence of the heat that is subjected to not eliminated by minute reflective optical system from radiation of light source.This just is used in the position of adjusting device, anti-dazzling screen and aperture of beam-shaping shadow shield and structure and satisfies and to make any bending that heat affecting caused from light beam remain on minimum level.

The illuminating equipment of this type often is configured in some to be difficult to the place of manual mode near them, therefore and it is highly important that the adjusting device that is used to regulate above-mentioned light beam and influence device will be as much as possible easily near also flexible as much as possible when the manual operation that needs adjusting device.

United States Patent (USP) disclose for No. 5,345,371 one type illuminating equipment as a reference, wherein four beam-shaping shadow shields or diaphragm can inject in the slit with sliding type from the outside, and diaphragm is used for the clamper of each diaphragm by clamping and radially can regulates on optical axis or with respect to optical axis slip diaphragm.Each diaphragm can also make it to tilt to a certain degree with manual mode.But, the possibility that further tilts is to rotate around axle as a unit by the part that makes equipment comprise diaphragm to realize.This is a kind of solution of complexity and needs manpower to be used to rotate the tumbler of this part of equipment near all diaphragm clampers and manipulation.The motorization that is used for this structure of remote control is complicated and expensive.

United States Patent (USP) disclose for No. 4,890,208 one type illuminating equipment as a reference, wherein four aperture arrangement become by means of rack-and-pinion mechanism towards optical axis radially motorization move and motorization is tilted.This solution is very complicated and only have limited tilt capability,, centers on axle along circumferential locomotivity that is.Secondly, this solution is not well suited for manual operation.

Summary of the invention

The illuminating equipment that the purpose of this invention is to provide a kind of described type, wherein be used for manually operated near easily and and do not rely on the orientation of illuminating equipment, the motorization that wherein is used for remote control can form in simple and reliable mode, and big as much as possible around the scope that circumferentially moves of optical axis.

According to the present invention, this purpose is to realize by the adjusting device corresponding to described one or more beam-shaping shadow shields at least, and preferably all adjusting devices are configured to around described longitudinal axis rotation, and be connected in corresponding the influence on the device, so that adjusting device can be regulated the corresponding position that influences device with respect to the described longitudinal axis around the rotation of the described longitudinal axis.

Whereby, in fact adjusting device can give approaching and not intrinsic any restriction for the adjusting possibility that makes progress in week from any angle.

In present preferred embodiment, circumferential body comprises a circumferential body, and this circumferential body roughly overlaps and arranges with the described longitudinal axis with its axis, this especially simple and effective embodiment.

In the present preferred embodiment of the present invention, circumferential body comprises and is used to be engaged so that apply the outer rim of rotatory force to it that surface of described outer rim is provided with the friction intensifier, such as roughening device, rubber surface, projection or tooth.Whereby, the manual and remote control of adjusting device is simple especially and effective.

Preferably, this equipment also comprises one or more motor, this motor is connected on the respective drive wheel with the described outer rim engagement of respective annular main body, be used for applying rotatory force to it, and preferably, this driving wheel is a gear, and is provided with tooth by the corresponding outer rim of respective gears engagement, is used for when described gear rotates and the engagement of the tooth of described gear.

Be used for the remote control illuminating equipment in order to influence at light beam under the situation that device has the precalculated position, preferably, circumferential body is provided with position indicator, is used to indicate the angle position of circumferential body with respect to the described longitudinal axis.Whereby, can obtain being used for the datum mark of straighforward operation, thereby eliminate the sum of errors inaccuracy.

Preferably, position indicator comprises an element that can detect at a distance, and such as a magnet or a gap, and this equipment also comprises remote detection device, is used to detect the angle position of described element with respect to the described longitudinal axis.

For the maximum flexibility that obtains to regulate and the maximum magnitude of adjusting, be used for each adjusting device of described one or more beam-shaping shadow shield and comprise the radiai adjustment device, be used in the position of radially regulating shadow shield with respect to described axis, also comprise circumferential adjusting device, be used for along the position of circumferentially regulating described shadow shield around described axis.

Simple and efficient especially and accurate embodiment according to illuminating equipment of the present invention provides by following, promptly, be used for each adjusting device of described one or more beam-shaping shadow shield and comprise two adjacent annular concentric main body or annulus, they be connected in separately shadow shield a bit so that two annulus relatively rotate the radial position that can change shadow shield.

In current preferred embodiment, annulus comprises guide rail, this guide rail is absorbed in the lateral surface with respect to another annulus of each annulus, and each shadow shield comprises that one is transverse to main body and two support arms that are parallel to described axis extension substantially that described axis extends substantially, this support arm is provided with sliding connecting device separately, be used for corresponding support arm is connected in each annulus, and be suitable for being slidably received within the guide rail of each described annulus.

Description of drawings

Below, describe the present invention in detail in conjunction with the preferred embodiment that only illustrates with reference to the accompanying drawings according to illuminating equipment of the present invention by example, among the figure:

Fig. 1 is the elevational view that waits according to illuminating equipment of the present invention that is used for manual control;

Fig. 2 is partly cut-away's view of illuminating equipment among Fig. 1, shows the internal structure of illuminating equipment;

Fig. 3 is the schematic cross section of Fig. 1 and Fig. 2 illuminating equipment, and this cross section is to intercept along the vertical plane that comprises the illuminating equipment longitudinal axis or optical axis;

Fig. 4 is the magnification ratio view of Fig. 3 left-hand part;

Fig. 5 is the elevational view such as axle such as grade of the end half one of Fig. 1 and 2 illuminating equipment framework;

Fig. 6 is the beam-shaping shadow shield of Fig. 1 and 2 illuminating equipment and the decomposition view of regulating annulus;

Fig. 7 is the axial end view of shadow shield and annulus shown in Figure 6 under nested assembled condition;

Fig. 8 and the 9 schematic axial end-views corresponding to Fig. 7 show the adjusting of the beam-shaping shadow shield of Fig. 6～7;

Figure 10 is the diagram of rail configurations principle that is used for the adjusting annulus of beam-shaping shadow shield;

Figure 11 schematically shows the beam-shaping shadow shield and is used for another embodiment of its governor motion;

Figure 12 illustrates an exploded view that waits of the position adjusting mechanism that is used for lens shown in Figure 2 with magnification ratio;

Figure 13 illustrates the zoomed-in view of CONSTRUCTED SPECIFICATION shown in Figure 12.

The specific embodiment

Referring now to Fig. 1～5, illuminating equipment 1 according to the present invention is suspended on the accessory 2 that suspends, and the latter has the supporting member (not shown) that eyelet 3 is used for accessory 2 is fixed in pivotly theater, television production chamber etc.Accessory 2 is fixed on illuminating equipment 1 main body pivotly at 4 places, and by sliding pivot fixing point 4 in the slit on framework 65, fixing point can be regulated, so that compensation is owing to plug-in mounting in illuminating equipment 1 or remove the change of the balance that different parts cause.

Illuminating equipment 1 thereby can be manually pivot around two mutually orthogonal basically axis, and allow the direction of the light beam that sends by this equipment to be on any required direction.

If wish can the remote control light beam direction, pivoting action can be by means of realizing with conspicuous multiple mode remote-control motor for those skilled in the art.

Framework 6 is substantially U-shaped, has two support arms, and the body supports of illuminating equipment 1 is between described two support arms.Arrange a series of toothed wheel rims 7～18, be used for rotating (see figure 3) around the longitudinal axis or optical axis 19.Must vehicularized words if the light beam of handling illuminating equipment by the rotation of toothed wheel rim 7～18 influences device for remote control, the tooth that the tooth of toothed wheel rim is configured to the pinion of driver element can be engaged with and coincide.

In the manual embodiment shown in Fig. 1～4, the tooth of toothed wheel rim act as the roughening element of the wheel rim surface of each circumferential body 7～18, so that can realize good friction engagement between finger and toothed rim or the circumferential body 7～18, be used for manual rotary annular main body 7～18.

This roughening of wheel rim surface can be achieved with many other modes, such as surface groove or apply with rubber or some small embossments or the like are set.

In this case, rotate motorization if make circumferential body 7～18, the tooth engagement of the wheel rim of the friction surface of the driving wheel that for example is coated with rubber engages to substitute pinion with the wheel rim surface of described roughening tooth and circumferential body can be provided, and this driving wheel is by motor-driven.

Light source or light fixture 20 send such as the light beam that is made of independent light beam shown in 20a, its visible part is penetrated from illuminating equipment by condenser lens 22 and zoom lens 23 and by the eyelet 24 on this equipment 1 shell 25 by minute reflective optical system 21 reflection, light beam 20a passes unshowned filter, this filter is arranged among four filter clampers 26, the latter can pivot around pivot 27, can be on any direction in the four direction of being determined by four clampers 26 in the plug-in mounting clamper 26 or from wherein removing to allow filter.Whereby, filter can from shell 25 catch best angle plug-in mounting and dismounting near to orientation, be to constitute naturally by the whole light beam of illuminating equipment projection by many light beams similar in appearance to independent light beam 20a.

The infrared part of light beam 20a is sent to cooling ribs 220 by minute reflective optical system 21 in mode well-known in the art, to reduce along the heat distortion of each element from light source 20 to the beam path configuration of penetrating eyelet 24.

These elements comprise the aperture 28 that is connected on the circumferential body 7; Be connected in grating or anti-dazzling screen 29 on the circumferential body 8; Be connected to each to four the beam-shaping

shadow shields

30,31,32 and 33 on circumferential body 9-10,11-12,13-14 and the 15-16; Be connected in the condenser lens 22 on the circumferential body 17; And the zoom lens 23 that are connected in circumferential body 18.

Circumferential body or annulus 7～18 are connected in corresponding light beam in a different manner to be influenced on

element

22,23 and 28～33, so that the position of these elements can change around axis 19 rotations and with respect to described axis by annulus, and thereby change light beam.Independent annulus and will be described in greater detail below independent connection the between the respective element.

These characteristics of position that can change light beam by means of rotating corresponding annulus and influence element and especially beam-shaping shadow shield 30-33 allow at the given orientation of shell 25 from one easily angle of approach carry out the position change with hand.Because the wheel rim surface of each annulus 7～18 can be touched with hand in its peripheral maximum magnitude,, corresponding light beam can be achieved from the angle of approach of the most convenient of opposite shell 25 so influencing the manual adjustments of device position.Secondly, manual adjustments can be carried out with a hand, and this point is very important, because illuminating equipment often is positioned to two hands near very difficult and perhaps be impossible.

Therefore, the shortcoming that does not have known various illuminating equipments according to illuminating equipment of the present invention, in known illuminating equipment, the adjusting device that is used to regulate beam-shaping shadow shield position may be located very inconveniently with respect to the personnel's of this illuminating equipment of operation position, so that these personnel are such as contacting around the illuminating equipment shell with near adjusting device, thereby emitting the risk of on scorching hot case surface, burning, and making rapid and accurate position adjustments very difficult and perhaps impossible.

This advantage also can realize by the tumbler that is different from the wheel rim surface that is used for manual or mechanical engagement having of annulus.Can adopt the element with many spokes circumferentially spaced apart, that radially extend, these spokes are in order to be engaged by finger or motor driving device at its place, end.Be arranged to be used for to make endless belt that the edge of circulatory motion circumferentially is provided with basically and also can be used for replacing illustrated annulus around the longitudinal axis.All allow along the major part of shell periphery near with pointing or motor driving device carries out the means that pivoting friction contacts or mesh and can be adopted, approaching to guarantee this convenience to adjusting device, change the position that light beam influences element.

The feature that influences position of components by tumbler change light beam is inevitable with simply and reliably establishing the corresponding particular adjustments setting that influences device, so that can finish the setting of programming in advance at some lighting requirement, known under hard situation, such as during the arenas performance process that must regulate in the dark, this setting can be simply, rapidly and reliably or manually or remote control realize.

Be, do not have light beam to penetrate by another advantage that obtains according to structure shown in of the present invention, and light beam influences all adjustings of element and can carry out under the situation that does not produce luminous slit or eyelet from illuminating device is inner except by the eyelet 24.Whereby, eliminated the shortcoming of all known illuminating equipment light leaks, this point has great importance, particularly concerning the theater purposes.

Referring again to Fig. 1-5, framework 6 is made of half 6a of and the 6b of two congruences of docking each other at the 6c place.Annulus or circumferential body 7～18 are bearing in the ring-shaped groove 34 of ring-shaped bearing ring 35 rotationally and slidably by means of the annular projection or the convex ridge 36 that are slidably received within the ring-shaped groove 34.Support ring 35 each naturally by one and half ones that are fixedly connected on framework 6, such as the 6a (see figure 1), or make half ring of one with it and constitute.In other words, each frame half 6a and 6b are fixedly connected to a series of semi-rings 35 or form one with it, as shown in Figure 5, at this, show the end half 6b of of framework 6, together with corresponding semi-ring 35.

When assembling illuminating equipment 1, the adjusting annulus 7～18 that having corresponding light beam influences

element

22,23 and 28～33 is arranged among the end half 6b of of the framework with corresponding semi-ring 35, so that each convex ridge 36 of regulating annulus is contained among the respective grooves 34 of the corresponding semi-ring 35 of half 6b of at the bottom of the framework.After this, half 6b of places the end of against at the 6c place to have the top half 6a of framework 6 of corresponding semi-ring 35, so that each convex ridge 36 of regulating annulus is contained in the respective grooves 34 of corresponding semi-ring 35 of framework top half 6a.Thereby regulating annulus 7～18 will be along its whole circumference by corresponding annulus 35 slidably and rotatably support.

Each regulates annulus or circumferential body 7～18 can apply tangential force by the wheel rim to corresponding adjusting annulus circle then and manually or by means of mechanical device rotate, and its convex ridge 36 slides in the respective annular groove 34 of corresponding support ring 35 whereby.The material of convex ridge 36 and groove 34 is chosen to so that sliding-frictional resistance keeps minimum.Supporting convex ridge 35 can be made by cast aluminium, can be made by the plastics that glass fibre is strengthened and regulate annulus.Convex ridge 36 is by making such as the such low-friction material of teflon, and the annulus of described material embeds in the lateral surface of corresponding adjusting annulus.Whereby, the sliding-frictional resistance between low-friction material and the cast aluminium will be very low, can rotate by applying less tangential force to its wheel rim and regulate annulus thereupon.

Each exchanges pitch circle ring 9/10,11/12,13/14 and 15/16 and by means of being regulated annulus each that gives clamping in the following mode that comparatively describes in detail is carried corresponding beam-shaping

shadow shield

33,32,31 and 30 respectively to support arm 33a, b, 32a, b and 30a, b respectively by each.Like this, each two annulus to annulus can relatively rotate with respect to each other, and low-friction material annulus 37 is configured in each and exchanges between the pitch circle ring, shown in Fig. 4 and 6.

Referring now to Fig. 4 and 6～9, explain the layout of four beam-shaping shadow shields 30～33 in more detail.

With nested shown in 7, each shadow shield 30～33 is respectively by a pair of opposed support arm 30a-33a and 30b-33b holding as Fig. 4,6 for shadow shield 30～33.

Importantly, shadow shield 30～33 is positioned in close vertically as far as possible, so that form the cut-out border of a distinctness of light beam around its circumference, this point only each shadow shield dispose so that under enclosure axis upwards has the situation of remarkable distance, could not realize between them.

This especially is clearly shown that in Fig. 3 and 4, at this, is apparent that the spacing of each shadow shield on axis 19 directions is very small.

Shown configuration also has following advantage, be that axial distance between beam-shaping shadow shield 30～33 and aperture 28 and anti-dazzling screen or the grating 29 is very little, so that can obtain shadow shield, aperture and anti-dazzling screen shaping effect or the high-quality effect better to light beam, this is simultaneously owing to very little the causing of the shared axial distance of all elements.

Shadow shield 30～33 is configured as shown in Fig. 6～8 has oval substantially plane body 38, and the latter has eyelet 39, and eyelet has the periphery that comprises curved portion 40 and straight line portion 41,42 and 43, and the light beam that described periphery is used for shadow shield main body 38 cuts off the edge.This point is shown in Figure 7, and the periphery of the eyelet 39 of shadow shield 30～33 4 main body 38 defines the periphery of beam-shaping eyelet 44.By the rotation of different shadow shields 30～33 around axis 19 combined with the radial displacement of described shadow shield 30～33 with respect to described axis 19, can realize many difformities of eyelet 44.

The radial displacement of each shadow shield 30～33 is shown among Fig. 8-9, and peripheral part 42 shown in Figure 8 being in of shadow shield 33 are left axis 19 maximum radial distance places, and shown in Figure 9 being in left described axis 19 minimum radial distance places.Rotation displacement is to realize by a pair of annulus 9/10 that rotates carrying shadow shield 33 around axis 19.Radially making with the combination of rotation displacement of each shadow shield produces diversified eyelet 44 peripheral shapes.

Selected the elliptical shape of eyelet 39, to provide firm relatively shadow shield and continuous and level and smooth main body outer periphery.Whereby, their interference each other when each shadow shield main body moves relative to each other have been avoided, even the axial spacing of each main body is small.Therefore, for fear of between each main body and each is to the phase mutual interference between support arm 30a, b～33a, the b, preferably, the radial displacement of each main body is carried out in the mode that in fact deflection do not take place support arm during this displacement, promptly, distance between the every pair of arm end is constant during this radial displacement, and does not have twisting resistance to be applied on the support arm during this displacement.

In the presently preferred embodiment shown in Fig. 1～9, realize that this point is as follows.

Each support arm is provided with the end 45 of inclination, and this end has the pilot pin 46 that passes it and stretch out from two counter surfaces of sloping portion 45.The plane of each end 45 is arranged essentially parallel to the plane of the main body 38 of corresponding shadow shield.

Annulus in the every pair of annulus, such as 15 among Fig. 6 with 16 or Fig. 8～9 in 9 and 10 be identical, and a lateral surface of each annulus is provided with the track 47 that circumferentially extend on the edge of depression in groove 48 bottoms that circumferentially extend on the edge of annular, and and groove 50 bottoms that annular, peripheral that diagonal angle with respect to groove 48 arrange extend identical with groove 48 are provided with the elongated track 49 that radially extends.

Two

annulus

15,16 among Fig. 6 and two

annulus

9,10 in Fig. 8 and 9 layout that abuts against each other, and its lateral surface is provided with the

groove

48 and 50 that faces with each other, so that the groove of annulus 15 (annulus 9) 48 is faced and the groove 50 of overlapping annulus 16 (annulus 10), and the groove 50 of annulus 15 (annulus 9) is faced and the groove 48 of overlapping annulus 16 (annulus 10).Whereby, abut against each other when arranging, just formed the annular channel 51 of the inclined end portion 45 that is used to hold support arm at each paired annulus 9/10,11/12,13/14 or 15/16.

One of two outstanding ends of each pilot pin 46 of each end 45 are injected in the circumferential track 47 of an annulus in a pair of annulus, and another outstanding end is injected in the described radial track 49 to another annulus in the annulus.

Track

47 and 49 geometry make when an annulus in a pair of annulus during with respect to another annulus rotation of this centering, move radially by this corresponding main body of being discussed the shadow shield of annulus carrying, so that the distance between the corresponding pilot pin 46 of two support arms of corresponding shadow shield remains unchanged, and support arm does not bear any distorting stress.

In Fig. 8 and 9, a pair of annulus 9/10 is shown, and annulus 9 against and overlapping annulus 10.In diagram, for the purpose of clear, two annulus draw with solid line, and show the track 47 of two annulus and 49 relative position.

In Fig. 8, annulus 10 has turned over 10 degree clockwise, so that the track of its shown in the left side 47 turns over 10 degree clockwise among Fig. 8, and annulus 9 has turned over 10 degree counterclockwise, so that its track 47 shown in the right turns over 10 degree counterclockwise among Fig. 8.As a result, the track 49 of the annulus 10 shown in Fig. 8 the right turns over 10 degree clockwise, and the track 49 of the annulus shown in the left side 9 turns over 10 degree counterclockwise among Fig. 8.Clockwise and counterclockwise angle provides with respect to initial position, on this position, and the half-way of main body 38 between Fig. 8 and Fig. 9.The largest perimeter of light beam is shown by circle 52.

In Fig. 9, annulus 10 has turned over 10 degree counterclockwise, so that the track of its shown in the left side 47 turns over 10 degree counterclockwise among Fig. 9, and annulus 9 has turned over 10 degree clockwise, so that its track 47 shown in the right turns over 10 degree clockwise among Fig. 9.As a result, the track 49 of the annulus 10 shown in the right turns over 10 degree counterclockwise among Fig. 9, and the track 49 of the annulus 9 on the left side, the left side turns over 10 degree clockwise among Fig. 9.

All centre positions between two end positions shown in Fig. 8 and 9 are that the angle of corresponding size realizes between

annulus

9 and 10 10 and 20 degree by relatively rotating with respect to each other.

Many different light beam peripheral shapes can be by two right annulus of the corresponding annulus that relatively rotates with respect to each other mobile shade 30-33 and realize along circumferential mobile shade radially by two annulus that rotate an annulus centering together.

In Fig. 7, show four shadow shields 30～33 radially with one of unlimited multiple combination of circumferential position, thereby obtain a kind of have shown in the light beam of octagonal peripheral shape.

For the distance between two pilot pins 46 at the end place that is implemented in each shadow shield 30～33 two support arm all is the same for all radial displacements of its main body 38 and each support arm is not sent out and reversed so that main body 38 is not born any distortion power,

track

47 and 49 shape correspondingly as following with reference to Figure 10 description and construct, Figure 10 illustrates the making and the calculating of

track

47 and 49 described shapes.

In Figure 10, make three pairs of corresponding mutually points on

curve

47 and 49, for the purpose of clear, all angles have been exaggerated.

Being constructed as follows of curve carried out:

A1 is a constant and equals half of distance between two pilot pins 48 of shadow shield.

C2＝A1

Angle 1=angle 2

Angle 1+ angle 2=angle 3

Two triangles are right angled triangles

Angle 1 is the angle that annulus 1 sets, and angle 2 is angles that annulus 2 sets.

By with respect to annulus 2 tumbler rings 1, can obtain angle 3.Make a center line left from the center and the along continuous straight runs of annulus, so that angle 1=angle 2

Angle 1 and angle 2 are in order to make two triangles.

Along center line drawing line always, the length of this straight line equals half of length between two pilot pins 46 of shadow shield.

This straight line forms hypotenuse C2 and three arm of angle A1, so that another three arm of angle B1 can intersect until two straight lines and makes till going up on one point by making a straight line from down at right angles and making C1 away from the center.This point is on the curve that remains to be made for design track 47.

Equation 1.1:B1=SIN (angle 1) * A1

Equation 1.2:C1=A1/COS (angle 1)

C1 is a radius now, and it can constitute track by means of following equation 1.3 together with angle 3.

X track 47=COS (angle 3) * C1

Y track 47=SIN (angle 3) * C1

Perhaps, equation 1.2 can insert in the equation 1.3

X track 47=COS (angle 3) * (A1/COS (angle 1))

Y track 47=SIN (angle 3) * (A1/COS (angle 1))

The every bit that X and Y-axis correspondence have been done is shown among Figure 10.

Track 49 in annulus radially extends, to adapt to the radial displacement of pilot pin 46 respective end that (take up) cause owing to the geometry of the track in another annulus 47.

Because joining or triangle summit B1/C1 change its position with respect to the center of each annulus just, so the form of track 47 is provided by following formula:

X track 49=A1/COS (angle 1)

Y track 49=0

So that between the end of pilot pin 46 on the respective points of

track

47 and 49, be maintained fixed distance.

The person skilled in the art will easily understand, might be by means of realizing that with many other mode tumbler rings the beam-shaping shadow shield is diametrically with in the displacement that makes progress in week.

Referring now to Figure 11, wherein schematically illustrated layout light beam influences the another kind of mode of shadow shield.9,10, two of adjusting annulus that are similar to Fig. 8 and 9 are regulated annulus 56,57 layout that abuts against each other, and beam-shaping shadow shield 60 is configured in therebetween and be connected on the annulus by means of two pilot pins 61 and 62.Pilot pin 61 is contained in annulus 57 in the face of in the groove in the lateral surface of annulus 56, and groove has the shape that only allows pilot pin 61 to rotate therein.Pilot pin 62 is received within and is recessed into annulus 56 in the face of among the rectilinear orbit 63 in the lateral surface of annulus 57.Pilot pin 62 can slide in track 63.

Shadow shield 60 stops that farthest the situation of light beam 52 draws with solid line, does not draw with dotted line and shadow shield does not stop the situation of light beam 52.The complete blocking position of shadow shield 60 for example as shown in the figure, keeps annulus 57 to transform to its non-blocking position in same position by rotating counterclockwise annulus 56 by annulus 56 and 57 of relatively rotating with respect to each other.Whereby, pilot pin 62 will be forced in the track 63 and slide and just rotation of pilot pin 61, thereby shadow shield rotates around pilot pin 61.In the example shown, annulus 56 rotates counterclockwise 12 degree and will cause shadow shield 60 rotations 22 degree.

Bigger axial spacing between the shadow shield that the arrangement requirement of beam-shaping shadow shield is firm relatively and/or each shadow shield is so that avoid the interfering with each other or contact of each shadow shield when being rotated.

Referring now to Fig. 2,3,12 and 13, wherein illustrate along the mechanism of the longitudinal axis 19 mobile focusing lens 22 and zoom lens 23 with the exploded form.The clamper 64 of the zoom lens 23 that are used for and the clamper 65 that is used for condenser lens 22 are arranged among

track

66 and 67 respectively slidably, so that

clamper

64 and 65 can be parallel to the longitudinal axis 19 and moves around.

Carriage 68 is connected in each

clamper

64 and 65, and the carriage 68 that only is useful on clamper 65 as seen.Carriage is connected on the

corresponding cingulum

69 and 70 corresponding to clamper 65 and 64 separately, and each cingulum is installed on

belt wheel

71 and 72, and the latter is installed in rotation on the

track

66,67.

Each is regulated annulus 17 and 18 (cutting open for clear and part) and is respectively arranged with example to band

toothed portion

73 and 74 in Figure 12, be used for meshing respectively the tooth of

cingulum

69 and 70, so that the reciprocal rotation of annulus 17 will cause moving around of cingulum 69, and the reciprocal rotation of annulus 18 will cause moving back and forth of cingulum 70.Whereby,

lens clamp

64 and 65 can move around along

track

66 and 67 respectively by the reciprocal rotation of

annulus

18 and 17.

Whereby, obtained to be used for along the longitudinal axis regulate each lens position a kind of simply, accurately with relative quietly travel mechanism.

When illuminating equipment 1 be orientated to its axis 19 orientated at steep inclinations the time, that is, when precipitous ground points upwards or below, each lens, especially the weight of zoom lens 23 will trend towards forcing lens from required and position through overregulating up or down, if especially equipment vibrates.This trend can be slowed down or be eliminated by introducing inertia or braking in travel mechanism.

But, if inertia constantly exists, such as a constant braking power that puts on cingulum, then moving of lens puts on extra tangential force on

annulus

17 and 18 wheel rims with needs.Certainly, thus this needs the operator to point to apply bigger strength for manual operation and for the bigger motor of mobile operation required power and to add with cost and noise mostly be unfavorable.

Travel mechanism according to the present invention is provided with braking function, and it just works when lens are not subjected to displacement, and promptly braking function does not only just work when

annulus

17 or 18 is not rotated.Certainly also applicable in some other application scenario, that wishes object at this place mobilely has a braking of moving object on the position, back subsequently according to the principle of selectively producing actuation mechanism of the present invention and explanation below.

Comprise belt wheel 71, locking wheel 90, friction washer 91, friction spring 92, lock washer 93 and locking skid plate 94 according to selectively producing actuation mechanism of the present invention (Figure 12～13).

Spring 92 is pressed against locking wheel 90 and friction washer 91 on the belt wheel 71, so that produce suitable friction between locking wheel 90 and belt wheel 71.

Locking skid plate 94 is arranged between two sections parallel-segment of cingulum and is used for moving back and forth in the plane of described cingulum 70 perpendicular to described two parallel-segment.The locking skid plate is provided with locking teeth 94a and 94b, is used for sentencing ratchet-type action and tooth engagement at the wheel rim of locking wheel 90.If locking skid plate 94 is on the center, promptly do not move towards any of 70 liang of parallel-segment of cingulum, locking teeth 94a and the 94b tooth of engaging lock fixed wheel 90 not then is not so there is friction catch to put on cingulum 70.

The distance that locking skid plate 94 is longer than

belt wheel

71 and 72 common tangent lines slightly perpendicular to the size of cingulum 70 parallel-segment, thus on the center of locking skid plate 94, described locking skid plate will be pressed against on the parallel-segment of cingulum 70.

If tension force puts on one of two parallel-segment of cingulum 70 owing to the weight of lens, then described section will be tightened up and parallel that section will be loosened, thereby the locking skid plate will be displaced to lateral position from the center, there, a corresponding ratchet among locking teeth 94a and the 94b with engaging lock fixed wheel 90, thus friction brake force applied via friction washer 91 to belt wheel 71.

But, if the tension force in one of cingulum 70 is parallel two sections is owing to tumbler ring 18 causes for axial dipole field clamper 84, then lock skid plate 94 and move from its center and will can not cause the ratchet engagement of a locking teeth 94a or 94b and locking wheel 90, this is because ratchet effect will cause corresponding locking teeth " cunning " to cross ratchet.

Whereby, realized a kind of selectively producing actuation mechanism, thereby when the weight of lens attempted to rotate corresponding adjusting annulus, braking action was effectively, but when corresponding annulus rotated with mobile lens vertically, braking action was invalid.

For those skilled in the art, clearly, the principle of above selectively producing actuation mechanism goes for all need on an application of force direction and not needing in the application scenario of braking action on opposite application of force direction.

In annulus 8, arrange anti-dazzling screen or grating 29 and arrange that in annulus 7 aperture need not illustrate at this, because this will become apparent to those skilled in the art that this point can be achieved in many modes well known in the art.

For each remote control of regulating annulus, it will be obvious to those skilled in the art that equally to be the motor of each annulus configuration one band pinion, so that the tooth of pinion is engaged in the tooth on the corresponding annulus wheel rim.These motors can for example firmly be connected on the framework 6 or with spring and exert pressure, so that can eliminate annulus and thus band tooth wheel rim installation aspect any irregular.Some magnetic marks can be fixed on the annulus, so that checkout gear can detect the position that these marks are also accurately discerned corresponding annulus, to turn to the basis that corresponding light beam influences the new desired location of device subsequently as being used for it.

Claims

1. an illuminating equipment is used for projecting beam, and is used for carrying out spotlighting in conjunction with theater stage, cinema and television stadio and similar site, and this equipment comprises:

Light source, it is arranged in an end place of shell, and shell has light beam and penetrates eyelet at its opposed end place, and light source and eyelet are arranged to the longitudinal axis or the optical axis of shell concentric;

Light beam influences device, and it comprises: at least one beam-shaping shadow shield, and this shadow shield can be regulated, so that the peripheral profile of the light beam that sends by light source of being shaped, thereby light beam is formed a kind of selected geometry; And a light beam of selecting from the group that is made of lens, aperture and grating or anti-dazzling screen influences element, is used to influence the light beam that is sent by light source, and arranged along the path of the described longitudinal axis that passes shell from the light source to the eyelet along light beam; And

Adjusting device, be associated in this adjusting device and the operation of each beam-shaping shadow shield, be used for regulating the position of relative beam-shaping shadow shield with respect to the described longitudinal axis, each adjusting device comprises circumferential body, the axis that this circumferential body is arranged to this circumferential body overlaps with the described longitudinal axis, and circumferential body is in order to rotate and to arrange around the described longitudinal axis, and be connected on the beam-shaping shadow shield relevant with this circumferential body, so that adjusting device can be regulated the position of relevant beam-shaping shadow shield with respect to the described longitudinal axis around the rotation of the described longitudinal axis.

2. illuminating equipment as claimed in claim 1, wherein, described circumferential body comprises the outer rim that is configured to be engaged, to be used for applying rotatory force to it, the surface of described outer rim is provided with the friction enhanced device.

3. illuminating equipment as claimed in claim 2 also comprises motor, and this motor is connected on the driving wheel of the described outer rim that meshes circumferential body, to be used for applying rotatory force to it.

4. illuminating equipment as claimed in claim 3, wherein, driving wheel is the gear with tooth, and is provided with tooth by the outer rim of gears engaged, is used for meshing when described gear rotates the tooth of described gear.

5. illuminating equipment as claimed in claim 1, wherein, circumferential body is provided with position indicator, is used to indicate the angle position of circumferential body with respect to the described longitudinal axis.

6. illuminating equipment as claimed in claim 5, wherein, position indicator comprises the element that can detect at a distance, and this equipment also comprises remote checkout gear, is used to detect the angle position of described element with respect to the described longitudinal axis.

7. an illuminating equipment is used for projecting beam, and is used for carrying out spotlighting in conjunction with theater stage, cinema and television stadio and similar site, and this equipment comprises:

Light beam influences device, and it comprises: at least one beam-shaping shadow shield, and this shadow shield can be regulated, so that the peripheral profile of the light beam that sends by light source of being shaped, thereby light beam is formed a kind of selected geometry; And the light beam of selecting from the group that is made of lens, aperture and grating or anti-dazzling screen influences element, is used to influence the light beam that is sent by light source, and arranged along the path of the described longitudinal axis that passes shell from the light source to the eyelet along light beam; And

Adjusting device, be associated in this adjusting device and the operation of each beam-shaping shadow shield, be used for regulating the position of relative beam-shaping shadow shield with respect to the described longitudinal axis, each adjusting device is in order to rotate and to arrange around the described longitudinal axis, and be connected on the relative beam-shaping shadow shield, so that adjusting device can be regulated the position of relevant beam-shaping shadow shield with respect to the described longitudinal axis around the rotation of the described longitudinal axis;

Wherein, adjusting device comprises the radiai adjustment device, is used for regulating with respect to described radial axis the position of shadow shield; And circumferential adjusting device, be used for position around the described shadow shield of the circumferential adjusted of described axis; And the radiai adjustment device comprises two adjacent donuts, each annulus be connected in shadow shield a bit on so that two annulus relatively rotate the radial position that can change shadow shield.

8. illuminating equipment as claimed in claim 7, wherein, shadow shield comprises a main body, this main body is transverse to described axis and extends, also comprise two support arms, this support arm is parallel to described axis and extends, and support arm is provided with sliding connecting device separately, is used for by in the guide rails that is received within each described annulus slidably corresponding support arm being connected in each annulus.