CN102458016A

CN102458016A - Operating lamp as well as surgery field facula adjusting device and method of operating lamp

Info

Publication number: CN102458016A
Application number: CN2010105261067A
Authority: CN
Inventors: 王磊
Original assignee: Nanjing Mindray Bio Medical Electronics Co Ltd
Current assignee: Nanjing Mindray Bio Medical Electronics Co Ltd
Priority date: 2010-10-29
Filing date: 2010-10-29
Publication date: 2012-05-16
Anticipated expiration: 2030-10-29
Also published as: CN102458016B

Abstract

The invention relates to an operating lamp as well as a surgery field facula adjusting device and method of the operating lamp. The operating lamp comprises a lamp holder, multiple lighting units and the surgery field facula adjusting device, wherein the multiple lighting units are fixed on the lamp holder, the surgery field facula adjusting device comprises a facula adjusting control unit, a facula adjusting signal input unit and a drive unit; the facula adjusting signal input unit receives a facula adjusting signal input by an operator, and the facula adjusting control unit is used for converting the facula adjusting signal into a brightness control signal corresponding to each lighting unit; and the drive unit outputs a driving signal corresponding to the brightness control signal so as to drive the corresponding lighting unit. The operating lamp provided by the invention is adopted to realize the adjustment on the size, shape and the like of the surgery field facula through controlling the brightness of lighting units, thus doctors can conveniently adjust a surgery field required facula according to the operation condition.

Description

Wild hot spot adjusting device of operating lamp and art thereof and method

Technical field

The present invention relates to wild hot spot adjusting device of a kind of operating lamp and art thereof and method, particularly a kind of operating lamp and wild hot spot adjusting device of art and the method that can carry out the hot spot adjusting according to operative incision.

Background technology

Operating lamp (also claiming shadowless lamp) is a requisite illumination component in the operating room.At present general operating lamp is made up of one or more lamp holder, and each lamp holder comprises a plurality of light-emitting components and collective optics, and fixing circular light spot of formation illuminates operative incision in the operative field territory usually.And generally, in the operation of most types, its operative incision is a long strip type or oval; And around operative incision, particularly the otch both sides need to place like operating theater instruments such as drag hook, haemostatic clamp; If fixedly hot spot is too small, then need a plurality of operating lamps could covering operations wild, and when fixedly hot spot is excessive; Shine easily on the operating theater instruments,, when operating lamp illumination is mapped on the apparatus, can produce reflective more because operating theater instruments adopts stainless steel to process; These reflective possibility direct projections cause dazzle to doctor's eyes, disturb the doctor normally to undergo surgery.

Therefore, hot spot that existing operating lamp forms is fixed, and inconvenience is regulated according to actual conditions in actual use.

Summary of the invention

In order to solve the fixing nonadjustable technical problem of operating lamp hot spot in the prior art, be necessary to provide a kind of hot spot adjusting device that is used for operating lamp.

In addition, also be necessary to provide a kind of operating lamp hot spot control method.

Simultaneously, also be necessary the operating lamp that provides a kind of hot spot adjustable.

For this reason, corresponding technical scheme provided by the present invention comprises:

A kind of operating lamp hot spot adjusting device; It comprises a driver element, a hot spot conditioning signal input unit and hot spot adjusting control unit; This hot spot conditioning signal input unit receives the hot spot conditioning signal of operator's input; Said hot spot is regulated control unit and is converted said hot spot conditioning signal into the brightness control signal of corresponding each lighting unit, the said driver element output drive lighting unit corresponding with brightness control signal.

A kind of operating lamp hot spot control method comprises: provide one comprise a plurality of priming illuminations unit operating lamp; One hot spot conditioning signal input unit is provided, and it receives the hot spot conditioning signal, and is converted into corresponding brightness regulated signal; Provide a hot spot to regulate control unit, it is regulated the brightness of said lighting unit according to described brightness regulated signal.

A kind of operating lamp; It comprises the wild hot spot adjusting device of a lamp holder, a plurality of lighting unit and an art; These a plurality of lighting units are fixed in this lamp holder; The wild hot spot adjusting device of this art comprises a hot spot adjusting control unit, a hot spot conditioning signal input unit and a driver element; This hot spot conditioning signal input unit receives the hot spot conditioning signal of operator's input, and this hot spot is regulated control unit and converted this hot spot conditioning signal into the brightness control signal of corresponding each lighting unit, this driver element output drive lighting unit corresponding with brightness control signal.

Operating lamp provided by the present invention and hot spot adjusting device and method; Keep under the fixed situation at lighting unit; Realize the adjusting of illumination unit hot spot through the brightness of regulating lighting unit in the operating lamp; Make that the adjusting of hot spot is more convenient, and help the moulded of operating lamp.

Description of drawings

Figure 1A is that an embodiment of the present invention operating lamp is at the light path sketch map that carries out before hot spot is regulated;

Figure 1B is the corresponding light ray energy distribution map of the light path of operating lamp shown in Figure 1A;

Fig. 2 A is that operating lamp shown in Figure 1A is at the light path sketch map that carries out after hot spot is turned down;

Fig. 2 B is the corresponding light ray energy distribution map of operating lamp light path shown in Fig. 2 A;

Fig. 3 A is the light path sketch map of operating lamp shown in Fig. 2 A after hot spot is further turned down;

Fig. 3 B is the corresponding light ray energy distribution map of operating lamp light path shown in Fig. 3 A;

Fig. 4 is the holder structure sketch map of a kind of execution mode of operating lamp of the present invention;

Fig. 5 A is that operating lamp shown in Figure 4 is at the light path sketch map that carries out hot spot adjusting forward position horizontal symmetry axis 202 shown in Figure 4;

Fig. 5 B is the corresponding light ray energy distribution map of Fig. 5 A;

Fig. 5 C is that operating lamp shown in Figure 4 is at the light path sketch map that carries out hot spot adjusting forward position vertical axis of symmetry 203 shown in Figure 4;

Fig. 5 D is the corresponding light ray energy distribution map of Fig. 5 C;

Fig. 5 E is wild hot spot (circular light spot) Energy distribution of the acquiescence art sketch map that the operating lamp that obtains of complex chart 5B and Fig. 5 D forms in the operative field territory;

Fig. 6 A is that operating lamp shown in Figure 4 is carrying out the light path sketch map of hot spot adjusting back along horizontal symmetry axis 202 shown in Figure 4;

Fig. 6 B is the corresponding light ray energy distribution map of Fig. 6 A;

Fig. 6 C is that operating lamp shown in Figure 4 is carrying out the light path sketch map of hot spot adjusting back along vertical axis of symmetry 203 shown in Figure 4;

Fig. 6 D is the corresponding light ray energy distribution map of Fig. 6 C;

Fig. 6 E is operating lamp wild hot spot (ellipse light spot) Energy distribution of art sketch map after the adjusting of operative field territory formation that complex chart 6B and Fig. 6 D obtain;

Fig. 7 is the sketch map of a kind of execution mode of the wild hot spot adjusting device of operating lamp art of the present invention.

Embodiment

Combine accompanying drawing that the present invention is done further explain through embodiment below.

Please referring to Figure 1A and Figure 1B, Figure 1A is the light path sketch map of operating lamp before carrying out the hot spot adjusting in operating lamp hot spot control method one execution mode of the present invention, and Figure 1B is the corresponding light ray energy distribution map of Figure 1A.(Light Emitting Diode, LED) form, and can certainly replace with other and be suitable for the light source that operating room uses by the operating lamp lamp holder by light-emitting diode for operating lamp in this execution mode.As shown in the figure, lamp holder 1 is made up of a plurality of

lighting units

2,3,4,5,6,7,8 and transparent glass panel 16, and each lighting unit is made up of LED and corresponding collective optics.Those skilled in the art can understand that index path is the index path of simplifying in this article; Wherein only going up the lighting unit that distributes with a certain axis of lamp holder (such as the central shaft or the symmetry axis of lamp holder) is signal; In actual the use in the lamp holder lighting unit be array distribution, be not only to be arranged on the line.

Under initial condition; These

lighting units

2,3,4,5,6,7,8 are launched

different light beam

9,10,11,12,13,14,15 respectively; These light beams have different exit directions; The emergent light center line of lighting unit and face glass 16 or lamp holder over against projection plane, it is crossing also to be that plane, place, operative field territory tilts at a certain angle, wherein center lighting unit 5 can intersect vertically with projection plane.Light beam is through exposing to territory 17 (17 only as the signals in operative field territory among the figure, it will be appreciated by those skilled in the art that this zone is the scope of the formed similar plane domain of corresponding lamp holder) of operation operative field behind the transparent glass panel 16.Wherein, the central ray of

light beam

9,13 shines the position 18 on operative field territory 17, and just the central ray of

light beam

9,13 intersects at position 18.The central ray of

light beam

10,12,14 shines the position 19 on operative field territory 17; The central ray of light beam 11,15 shines the position 20 on operative field territory 17; At this moment the most of energy of all light beams forms the light beam 21 (shown in Figure 1B frame of broken lines) with certain illumination degree of depth, and most of concentration of energy is in zone 22 in operative field territory 17.Wherein, With the spot center apart from 1 meter of lamp holder is mid point; And be benchmark with the center of maximum illumination at this place; Respectively along the lamp holder central axis away from and near the distance that measures on two rightabouts of lamp holder between two points of 20% that its illumination is center of maximum illumination, be the illumination degree of depth.Simultaneously; Corresponding considers from light energy, and shown in Figure 1B,

light beam

9,13 meetings are 17 formation Energy distribution 23 in the operative field territory;

Light beam

10,12,14 meetings are 17 formation Energy distribution 24 in the operative field territory; Light beam 11,15 can be in the operative field territory 17 forms Energy distribution 25,

final energy distribute

23,24,25 in the operative field territory 17 stacks form Energy distribution 26, the wild light spot energy of art that Energy distribution 26 is promptly finally presented to human eye distributes.Because the foundation of human eye intuitive judgment spot size is the Energy distribution of hot spot, the spot size that appears on the sense organ is about the distributed areas of central peak energy 50%, and promptly 27 size is the wild spot area of art that human eye is felt among the figure.

Please referring to Fig. 2 A and Fig. 2 B, when needs change hot spot big or small, be example to subtract the small surgical field hot spot in this execution mode, be radiated at the relative brightness of the peripheral lighting unit of the wild hot spot of art through minimizing, thereby realize transferring the small surgical field hot spot.Simultaneously, also increase the relative brightness of the lighting unit be radiated at the wild spot center of art, make that the highest illumination of the wild spot center of art remains unchanged in the hot spot adjustment process.In this execution mode, lamp holder can be circular, and perhaps the interior lighting unit cell arrangement is circular.

Shown in Fig. 2 A; Begin from outermost; Reduce to be radiated at the brightness of the

lighting unit

2,6,4,8 at 17 peripheral position, 18,20 places, operative field territory relatively; And increase the brightness of the

lighting unit

3,5,7 be radiated at 19 places, 17 centers, operative field territory simultaneously, make

lighting unit

2,6,4,8 in the operative field territory 17

Energy distribution

28,29 that form after reducing, make

lighting unit

3,5,7 in the operative field territory 17 Energy distribution 30 that form after increasing; At this moment the most of energy of all light beams forms the light beam 31 (shown in Fig. 2 B frame of broken lines) with certain illumination degree of depth; Most of concentration of energy is in zone 32 in operative field territory 17, final energy distribute 28,29,30 in the operative field territory 17 stacks form Energy distribution 33, judge on the human eye sense organ that spot area is 34.

Can find out that through contrast spot area 34 is littler than spot area among Figure 1B 27.Know by aforementioned, suitably regulate the relative brightness of lamp holder intraoral illumination unit, promptly can reach the purpose of regulating spot size.In this article, alleged relative brightness all is that wherein Benchmark brightness can be the brightness that lighting unit is produced under implied termss such as normal voltage electric current to Benchmark brightness.Described in addition periphery is relative center, refers to the outer ring part of the wild light spot shape of art, can regulate needs according to hot spot and set peripheral range size.The wild spot center of art refers to the geometric center of the wild light spot shape of art; Be positioned at generally speaking on the axis of lamp holder; Can certainly expand the center according to the size of lighting unit quantity and required adjusting hot spot, such as also having more lighting units, under the bigger condition of the wild hot spot correspondence of art for lighting unit among Figure 1A 2 and 8 outsides; If want in the case acquiescence spot size is adjusted to the spot size shown in Figure 1A;

Position

18,20 also can together be regarded as spot center with position 19 among Figure 1A, corresponding,

lighting unit

2,4,6,8 and

lighting unit

3,5,7 also are regarded as being radiated at the lighting unit of the wild spot center of art in the lump.

Referring to Fig. 3 A and Fig. 3 B; When needs further reduce operative field territory spot size; Can continue to reduce to be radiated at the brightness of the

lighting unit

2,6,4,8 that

position

18,20 goes out on the operative field territory 17; Egregious cases is until

closing lighting unit

2,6,4,8; The Energy distribution that makes their 17 formation in the operative field territory is zero, continues to increase the brightness of the

lighting unit

3,5,7 that is radiated at 19 places, 17 positions, operative field territory simultaneously, makes the Energy distribution of their 17 formation in the operative field territory increase to 35; At this moment the most of energy of all light beams forms the light beam 36 (shown in Fig. 3 B frame of broken lines) with certain illumination degree of depth; Most of concentration of energy is in zone 37 in operative field territory 17, and the spot area 38. that in operative field territory 17, forms the perception of a human eye institute can find out that through contrast visually spot area 38 is littler than spot area among Fig. 2 B 34.Simultaneously; Can find out through contrast Figure 1A, Fig. 2 A and Fig. 3 A; In the process of regulating spot size, the beam direction that shines spot center does not change, just focusing center's invariant position; Thereby lamp holder 1 formed

light beam

36,31,21 does not change at depth direction (direction in vertical operative field territory in promptly scheming), and the present invention does not just change the operating lamp illumination degree of depth when adjusting art open country spot size through this method.

Accordingly, when needs were recalled to hot spot than large spot, the brightness of illumination unit was carried out corresponding reduction and is got final product.

In addition; In the above-mentioned execution mode; Remove outside the lighting unit that is positioned at the lamp holder geometric center, the emergent light center line of other lighting units all tilts to intersect with the operative field territory, through the setting of angle; Can be so that be positioned at the partial illumination unit of the axis axis of central illumination unit 5 emergent light central lines (just a with) side (such as the left side); Project the operative field territory (position 20) of opposite side (right side) such as the beam center of lighting unit 4, relative 4 are in more that the beam center of the lighting unit 3 at peripheral (in other words further from the center) has then projected the art Yezhong heart on the lamp holder geometric position, the setting that intersects based on this type of light; Make the partial illumination unit of a side can project the operative field territory of relative opposite side; When the doctor blocks the partial illumination unit of a side,, therefore can reduce the situation that serious shade appears in the operative field territory because the lighting unit of opposite side still can shine a side of being kept off.

In the above-described embodiment, the lamp holder center is the geometric center of lamp holder, can overlap with the wild spot center of art, also can not overlap.Overlapping with two centers among this paper is example, and the straight line of these two central points is promptly crossed in the axis.

In the above-mentioned execution mode, be radiated at the brightness of the lighting unit of operative field territory diverse location, form the hot spot that different-energy distributes in the operative field territory, the final wild hot spot of arts that visually forms different sizes through change.The ratio that the adjustment of spot size confirms to be radiated at the LED lighting unit brightness of operative field territory diverse location through accurate numerical computations realizes.Such as the mode that reduces corresponding lighting unit brightness from the wild hot spot of art periphery to the center successively described in the above-mentioned execution mode; Accurate Calculation through numerical value; Set the change amount of lighting unit brightness; Can visually make the wild hot spot of art equably, little by little increase to maximum, reach the adjustment spot size and adapt to the different surgery type purpose big or small with operative incision by minimum.

In addition, the size of the adjustable range of operative field territory spot size is by illumination unit minimum and maximum Energy distribution decision on the position in operative field territory and diverse location.Minimum spot size is by being radiated at the hot spot decision that the wild RC lighting unit of art forms; Maximum hot spot is by the lighting position and the energy decision of the lighting unit that is radiated at the wild hot spot outermost of art; Position 18, position 19, position 20 and

Energy distribution

23,24,25 shown in Figure 1A, Fig. 2 A; When the relative distance that increases

position

18,19,20 increases

Energy distribution

23,25 relative values simultaneously, just can increase adjustable maximum hot spot, thereby increase the big small light spot adjustable range of operating lamp; Otherwise, reduce 18,19,20 relative distance and make them just can reduce maximum hot spot, thereby reduce the big small light spot adjustable range of operating lamp near reducing

Energy distribution

23,25 relative values simultaneously.

Can find out; Inner all the lighting unit fixed-site of lamp holder are motionless in this method; Only need computed in software, hardware driving to change lighting unit brightness; Like this lamp holder inside need not move or transmission mechanism remove to change the shooting angle of lighting unit optics, thereby simplify the lamp holder internal structure greatly.Owing to do not move or transmission mechanism; And lighting unit fixed-site; The inner LED lighting unit of all lamp holders and all dependency structure spares can accomplish to be fastened on lamp holder inside, and this has just improved the operating lamp reliability of structure, reduce production, the maintenance, repair cost of operating lamp.Simultaneously, can be so that light beam focusing to be more stable, hot spot control is more reliable, and the light spot shape variation error that does not have the mechanical movement error to cause can also be regulated ellipse light spot.In addition; Owing to not moving or transmission mechanism, the LED lighting unit can be placed arbitrarily in the inner position of lamp holder as required, and the moulding of operating lamp lamp holder also can design arbitrarily like this; Lighting unit thickness is less owing to not having motion or transmission mechanism simultaneously; Therefore whole lamp holder thickness is greatly reduced, thereby can make operating lamp moulding variation more, help designing lamp holder moulding with excellent laminar flow effect; Improve the aseptic result of laminar flow operation room, reduce infected possibility in the corrective surgery process.

, be the holder structure sketch map of a kind of execution mode of operating lamp of the present invention please referring to Fig. 4.This lamp holder 201 is formed centrally a criss-cross overall appearance in orthogonal symmetry axis 202,203 being; Lamp holder 201 can be divided into meet in the identical first area 204 of the shape of central point, second area 205, the 206, the 4th zone 207, the 3rd zone; Wherein first area 204 and the 3rd zone 206 along cross laterally; It is the direction setting of horizontal symmetry axis 202; And be divided into two parts symmetrical by horizontal symmetry axis 202 respectively, and second area 205 and the 4th zone 207 are provided with along vertical axis of symmetry 203, and be divided into two parts symmetrical by vertical axis of symmetry 203 respectively.All be evenly distributed with a plurality of lighting units in each zone, for example lighting unit 208.The described cross of this execution mode comprises and roughly is criss-cross structure, is not to refer in particular to proper " ten " font.In addition, in other execution mode, lamp holder also can be set to M shape.Generally speaking; Can lamp holder be designed to comprise at least two parts; Perhaps even number part; The lighting unit of two parts can the quadrature symmetry in the position of lamp holder also can nonopiate symmetry, need distinguish the nearly orthogonal symmetry but two-part each lighting unit outgoing beam arrives the wild position of art.During design; When LED lighting unit outgoing beam arrives position, art open country; Some beam center is the heart in the art Yezhong, and some beam center keeps all lighting unit brightness of direction constant when the needs ellipse light spot away from the wild certain distance of art like this; Increase the lighting unit brightness that another orthogonal direction is radiated at the art Yezhong heart, close this orthogonal direction and be radiated at lighting unit away from the art Yezhong heart.

Please referring to Fig. 5 A, be to be that the operating lamp of direction of observation forms light path sketch map in the cross section, space of acquiescence hot spot (before just hot spot is regulated) with horizontal symmetry axis 202 in this execution mode.This execution mode adopts lamp holder shape shown in Figure 4; But be example only so that 7 lighting units to be set on the horizontal symmetry axis 202; But it will be appreciated by persons skilled in the art that the setting of lighting unit number is many more, its regulative mode and precision, flexibility can correspondingly improve; Therefore operating lamp of the present invention is not limited to illustrated lighting unit quantity, can select for use flexibly as required.Lighting unit 210,211,212,213,214,215 and 216 is launched different light beam 217,218,219,220,221,222,223 and 224 respectively.These light beams have different exit directions, the center line of lighting unit and face glass 16 or lamp holder over against projection plane or operative field territory tilt at a certain angle crossing, but center lighting unit 213 can intersect vertically with projection plane.Light beam is through exposing to behind the transparent glass panel 224 of lamp holder apart from horizontal axis 225 parallel with horizontal symmetry axis 202 in the operation operative field territory at about 1 meter of lamp holder; Wherein the central ray of light beam 217,221 shines the position 226 on operative field territory horizontal axis 225, and just the central ray of light beam 217,221 intersects at position 227.The central ray of light beam 218,220,222 shines the position 227 on operative field territory horizontal axis 225; The central ray of light beam 219,223 shines the position 228 on operative field territory horizontal axis 225, and at this moment all light beams illuminate on the horizontal axis 225 between the position 229 all positions in the scope.

, be the corresponding light ray energy distribution map of Fig. 5 A please referring to Fig. 5 B.Consider from light energy; Light beam 217,221 can form Energy distribution 230 on horizontal axis 225; Light beam 218,220,222 can form Energy distribution 231 on horizontal axis 225; Light beam 219,223 can form Energy distribution 232 on horizontal axis 225, final energy distribution 230,231,232 stack on horizontal axis 225 forms Energy distribution 233, and the wild light spot energy of art that Energy distribution 233 is promptly finally presented to human eye distributes.

Please referring to Fig. 5 C, be that the operating lamp of direction of observation forms light path sketch map in the cross section, space of acquiescence hot spot with vertical axis of symmetry 203 in this execution mode.Lamp holder inside is distributed with a plurality of lighting units 240,241,242,213,243,244,245 on vertical axis of symmetry 203, wherein lighting unit 213 is in the lamp holder center, so also be positioned at simultaneously on the horizontal symmetry axis 202.These lighting units 240,241,242,213,243,244,245 are launched different light beam 246,247,248,220,250,251,252 respectively; These light beams have different exit directions, through exposing to behind the transparent glass panel 224 of lamp holder apart from vertical axis 253 parallel with vertical axis of symmetry 203 in the operation operative field territory at about 1 meter of lamp holder.Wherein the central ray of light beam 246,250 shines the position 254 on operative field territory vertical axis 253; The central ray of light beam 247,220,251 shines the position 255 on operative field territory vertical axis 253, and the central ray of light beam 242,252 shines the position 256 on operative field territory vertical axis 253.At this moment all light beams illuminate and are positioned at all positions of 257 scopes on the vertical axis 253.

, be the corresponding light ray energy distribution map of Fig. 5 C please referring to Fig. 5 D.Consider from light energy; Light beam 246,250 can form Energy distribution 258 on vertical axis 253; Light beam 247,220,251 can form Energy distribution 259 on vertical axis 253; Light beam 242,252 can form Energy distribution 260 on vertical axis 253, final energy distribution 258,259,260 stack on vertical axis 253 forms Energy distribution 261, and the wild light spot energy of art that Energy distribution 261 is promptly finally presented to human eye distributes.

Please referring to Fig. 5 E, be the wild light spot energy distribution schematic diagram of final art that forms in the operative field territory according to the operating lamp that Fig. 5 B and Fig. 5 D comprehensively obtain.It will be appreciated by persons skilled in the art that Fig. 5 E is the stack of all lighting unit emergent ray energy among Fig. 4.Near first area 204 all lighting units form illumination hot spot 262,263,264 and constitute central illumination hot spot 265 axle vertical axis 253 portion of energy, near the portion of energy that all lighting units form illumination hot spot 266,267,268 and constitute central illumination hot spot 65 in the second area 205 axle horizontal axis 225.Same, the 206 and the 4th zone 207, the 3rd zone forms second half of symmetry, no longer details here.Thus; The energy amplitude that first area 204, second area 205, the 206 and the 4th zone 207, the 3rd zone form on axle horizontal axis 225, axle vertical axis 253 is identical with the distribution size; The position pairwise orthogonal will form a circular light spot after four stacks.

Please referring to Fig. 6 A and Fig. 6 B, be to be that the operating lamp of direction of observation forms light path sketch map and the corresponding light ray energy distribution map of regulating the back hot spot with horizontal symmetry axis 202 in this execution mode.The brightness of the lighting unit 210,211,212,213,214,215,216 of lamp holder inside on the cross section at horizontal symmetry axis 202 places does not change; Then their beam energy and directions of sending do not change yet; Finally distribute also constant at the wild luminous energy that forms of art; The wild light spot energy of art of therefore, on horizontal axis 225 directions, presenting to human eye distribute still with shown in Fig. 5 E 233 consistent.

Please referring to Fig. 6 C and Fig. 6 D, be to be that the operating lamp of direction of observation forms light path sketch map and the corresponding light ray energy distribution map of regulating the back hot spot with vertical axis of symmetry 203 in this execution mode.For the lighting unit 240,241,242,213,243,244,245 on the cross section, vertical axis of symmetry 203 place; Shown in Fig. 6 C; Close beam center and shine the lighting unit 240,242,243,245 of position 254,256; Make their zero luminances; Increase the brightness that beam center shines the lighting unit 241,244 of position 255 simultaneously, then on the vertical axis 253 only the position in 270 scopes be illuminated, make lighting unit 241,213,244 on vertical axis 253, form Energy distribution 271.The wild hot spot of the art that final operating lamp forms in the operative field territory is the stack of all LED lighting unit energy in four zones 204,205,206,207 shown in Fig. 6 E.Wherein because lighting unit 240,242,243,245 is closed; First area 204 is closed in the LED of marginal portion owing to throwing light on; Remain all lighting units and only form the portion of energy of central illumination hot spot 265, near second area 205 all lighting units form illumination hot spot 266,267,268 and constitute central illumination hot spot 265 horizontal axis 225 portion of energy.Same, the 206 and the 4th zone 207, the 3rd zone forms other half Energy distribution with first area 204, second area 205 symmetries.Along the light energy amplitude of horizontal axis 225 and distribution greater than light energy amplitude and distribution along vertical axis 253; The light stack that the lighting unit in final four zones sends forms an oval hot spot; Just through regulating the brightness of lighting unit; Can regulate the shape of hot spot, make hot spot to change accordingly according to the operative incision shape, the illumination that can avoid operating lamp to send thus is mapped to the place of required scope; Thereby reduce the interference of light, more help doctor's operation for the doctor.

Certainly, when regulating ellipse light spot, first area and the 3rd regional pent lighting unit also can be opened, but brightness reduces relatively.In other execution mode; The lighting unit in all four zones can have the partial illumination unit to close or reduce brightness; As long as lighting unit illumination zone or brightness of illumination difference to some extent on two axis directions, and lamp holder is not limited to be made up of four zones, can be more; And can be according to thinking of the present invention parameter designing such as distribution acquisition other light spot shapes except that oval through illumination angle, brightness, lighting unit; About this point, those skilled in the art can obtain the parameter with the light spot shape coupling of wanting to regulate according to general parameter designing step, thereby obtain various regulative mode.

The concrete embodiment that above execution mode is just described for ease of understanding, those skilled in the art can change part element wherein easily and obtain other embodiments of same idea.Such as, in first execution mode of describing,, also can at the inner lighting unit of opening in the elliptic region of lamp holder, roughly be oval hot spot according to the situation of arranging of lighting unit thereby obtain one except regulating the size of circular light spot; In second execution mode describing; Lighting unit on trunnion axis 225 directions also can partly be closed, and forms the light energy distribution consistent with vertical axis 253, just reduces the distribution of light scope; Thereby make the hot spot after regulating remain circular, but integral body diminish; In aforesaid two execution modes, can be clocklike to distribute or evenly distribute at random.

In addition; In the corresponding execution mode of Fig. 2 A institute; In order further to increase no shadow effect, can between

lighting unit

2 and 3, increase by a lighting unit, and make the spot center of this lighting unit overlap with the spot center of the lighting unit 8 of opposite side; Same, lighting unit of increase makes its spot center overlap with 2 spot center between 7 and 8.In such cases; With respect to

lighting unit

2 or 3; The beam center line that is clipped in the lighting unit between 2 and 3 that increases newly and the angle on plane, operative field territory are littler; Just the angle change with the axis is big simultaneously, makes this lighting unit can shine the axis opposite side from the farther zone of the heart, art Yezhong.

Based on above-mentioned execution mode; For the arrangement of lighting unit, preferred implementation of the present invention is the design through lighting unit emergent light angle of inclination, lets the light that is radiated at a certain position, operative field territory be synthetic by the light that is distributed in the lighting unit on a plurality of distributed locations of lamp holder; That is to say; The lighting unit that is radiated at the art Yezhong heart is evenly distributed in each position of lamp holder, rather than concentrates on the lamp holder center, and is same; Being radiated at the lighting unit that encloses in the art field and being evenly distributed in each position of lamp holder yet, is not the periphery that only is distributed in lamp holder.With Fig. 4 is example; Can be in four zones of lamp holder near the center and near the part of periphery; Select several lighting units respectively,, make the spot center of these lighting units overlap in the center through the design at angle of inclination; Same, also can be in these four zones near the center and to project the wild hot spot of art near the spot center that the part of periphery is set some lighting units respectively peripheral.That is to say; Can be according to the wild spot size of art, for the desirability of no shadow effect etc.; All lighting units are divided into the N group, and wherein N is a natural number, and a plurality of lighting units of each group are evenly distributed on the lamp holder center to peripheral zone; Coincident configuration becomes the wild sub-hot spot of an art to the formed respectively hot spot of a plurality of lighting units in each group in the operative field territory, and N organizes the wild hot spot of art that the wild sub-hot spot of formed N art of lighting unit overlaps each other and is spliced into operating lamp.Like this, the lighting unit that forms the wild sub-hot spot of each art just arrives each peripheral position in the lamp holder center that is distributed in of dispersion.

When the lighting unit that shines the wild hot spot ad-hoc location of art is distributed in the lamp holder; Promptly far away apart from the lamp holder center, in, near position all has illumination unit to arrive the same ad-hoc location of hot spot; And the circumferencial direction around the lamp holder center also is equally distributed; All lighting units that are radiated at this ad-hoc location are just very little by the probability that doctor's head blocks in the lamp holder like this; When the doctor covered the partial illumination unit that forms this ad-hoc location hot spot, other lighting unit can guarantee the brightness of illumination of this specific region in addition, and can obtain does not well have the shadow effect.Comprehensive, the lighting unit of the hot spot of formation ad-hoc location distributes more even extensive in whole lamp holder, and no shadow effect can be good more.

According to aim of the present invention, the distribution of lighting unit in lamp holder can be clocklike to distribute or evenly distribute at random, and it is said to be not limited to above-mentioned execution mode.

, be the sketch map of a kind of execution mode of the wild hot spot adjusting device of operating lamp art of the present invention please referring to Fig. 7.Be the basis with above-mentioned first execution mode, the applied operating lamp of this hot spot adjusting device includes a plurality of lighting units, among this figure only with

lighting unit

2,3 as the signal.This hot spot adjusting device comprises hot spot conditioning signal input unit, hot spot adjusting control unit and driver element.The operator; Doctor for example; Can be through hot spot conditioning signal input unit input hot spot conditioning signal; Such as similar input unit such as the button that on operating lamp, is provided with, knob, slide block, perhaps with control desk that operating lamp is connected on similar input unit such as set button, knob, slide block, be used to import hot spot transfer big, turn down or change conditioning signal such as shape.The hot spot conditioning signal of input is sent to hot spot and regulates control unit; This control unit has been stored the pairing brightness control signal of various conditioning signals in advance; Perhaps calculate brightness control signal in real time according to algorithm, next brightness control signal is imported into driver element, and is converted into the drive signal of each lighting unit of control; So that lighting unit is luminous according to corresponding brightness, thereby reach the purpose of regulating hot spot.The adjusting of brightness can be push button or turning knob after reach needed regulating effect immediately, the result is regulated in a step output just, adjusting brightness that can certainly be progressively is up to producing needed spot size or shape.Progressively regulating brightness can realize through the slide rheostat change size of current that those skilled in the art know; Specifically no longer this explanation, but those skilled in the art all can obtain to meet the concrete implementation of inventive concept according to disclosed thinking through the conventional design means.Hot spot described in the present embodiment is regulated and can be passed through hardware, software, firmware or its combination realization.

In other execution mode, hot spot conditioning signal input unit also can be the sterile handle of operating lamp.Sterile handle is used to regulate hot spot through the relative position of regulating bulb in tradition contains the operating lamp of based on halogen bulb.In execution modes more of the present invention, can improved sterile handle be set at the core of operating lamp lamp holder; Position such as lighting unit 5 among Fig. 2 A replaces to a sterile handle; Perhaps lighting unit 213 replaces with a sterile handle among Fig. 5 A, makes through the rotation of sterile handle, can import multiple conditioning signal; Brightness with control LED lighting unit changes, thereby realizes the adjusting of spot size.

The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims

1. the wild hot spot adjusting device of an operating lamp art; Comprise a driver element; It is luminous to be used for driving a plurality of lighting units of operating lamp; It is characterized in that: this adjusting device also comprises a hot spot conditioning signal input unit and hot spot adjusting control unit; This hot spot conditioning signal input unit receives the hot spot conditioning signal of operator's input, and said hot spot is regulated control unit and converted said hot spot conditioning signal into the brightness control signal of corresponding each lighting unit, the said driver element output drive lighting unit corresponding with brightness control signal.

2. the wild hot spot adjusting device of operating lamp art as claimed in claim 1 is characterized in that: the conditioning signal that said hot spot conditioning signal input unit receives comprises to be turned hot spot down, transfer large spot or changes light spot shape.

3. the wild hot spot adjusting device of operating lamp art as claimed in claim 2; It is characterized in that: this hot spot conditioning signal input unit receives hot spot conditioning signal when turning hot spot down, this hot spot regulate that the corresponding output of control unit brightness reduces relatively or zero luminance control signal to the lighting unit that is radiated at the wild hot spot of art periphery.

4. the wild hot spot adjusting device of operating lamp art as claimed in claim 3 is characterized in that: this hot spot is regulated the lighting unit that is radiated at the wild spot center of art that controls signal to that control unit is exported the brightness increase simultaneously.

5. like the wild hot spot adjusting device of any described operating lamp art of claim 1-4, it is characterized in that: said hot spot conditioning signal input unit is the one or more kinds of combinations among button, knob, slide block, the handle.

6. the wild hot spot control method of an operating lamp art is characterized in that:

Provide one comprise a plurality of priming illuminations unit operating lamp;

One hot spot conditioning signal input unit is provided, and it receives the hot spot conditioning signal, and is converted into corresponding brightness regulated signal;

Provide a hot spot to regulate control unit, it is regulated the brightness of said lighting unit according to described brightness regulated signal.

7. the wild hot spot control method of operating lamp art as claimed in claim 6; It is characterized in that: when this hot spot conditioning signal input unit receives hot spot conditioning signal when turning hot spot down, this hot spot regulate that the corresponding output of control unit brightness reduces relatively or zero luminance control signal to the lighting unit that is radiated at the wild hot spot of art periphery.

8. the wild hot spot control method of operating lamp art as claimed in claim 7 is characterized in that: this hot spot is regulated the lighting unit that is radiated at the wild spot center of art that controls signal to that control unit is exported the brightness increase simultaneously.

9. the wild hot spot control method of operating lamp art as claimed in claim 6 is characterized in that: the conditioning signal that said hot spot conditioning signal input unit receives comprises to be turned hot spot down, transfer large spot or changes light spot shape.

10. operating lamp, it comprises a lamp holder and a plurality of lighting unit, these a plurality of lighting units are fixed in this lamp holder, it is characterized in that: this operating lamp further comprises like the wild hot spot adjusting device of any described operating lamp art of claim 1-5.

11. operating lamp as claimed in claim 10 is characterized in that: said lamp holder is a cross, comprises the first area corresponding in order with the cross four direction, second area, the 3rd zone and the 4th zone.

12. operating lamp as claimed in claim 11; It is characterized in that: when said hot spot conditioning signal when being adjusted to ellipse light spot; This hot spot is regulated control unit control first area and is being closed away from the lighting unit of the wild spot center of art or reducing brightness with the 3rd area illumination, perhaps controls this second area and the 4th area illumination and is closing away from the lighting unit of art open country spot center or reducing brightness.

13. operating lamp as claimed in claim 11 is characterized in that: the spot center that is positioned at least one lighting unit of first area is incident upon second area.

14. operating lamp as claimed in claim 10 is characterized in that: the emission light center line of said a plurality of lighting units and operative field territory plane inclination intersect.

15. operating lamp as claimed in claim 10 is characterized in that: the angle that the emission light center line of at least two adjacent lighting units and operative field territory plane inclination intersect is different.

16. operating lamp as claimed in claim 10; It is characterized in that: said lighting unit is divided into the N group; A plurality of lighting units of each group are evenly distributed on the lamp holder center to peripheral; Coincident configuration becomes the wild sub-hot spot of an art to the formed respectively hot spot of a plurality of lighting units in each group in the operative field territory, and the wild sub-hot spot of formed N art of the N group lighting unit art open country hot spot that overlaps each other and be spliced into operating lamp, and wherein N is a natural number.

17. operating lamp as claimed in claim 16 is characterized in that: wherein at least one group of lighting unit is that brightness is controlled by the wild hot spot adjusting device of said operating lamp art.

18. operating lamp as claimed in claim 10; It is characterized in that: the straight line to cross lamp holder center and the wild spot center of art is the axis, and the beam center line of at least one lighting unit that wherein is positioned at axis one side is crossing and its hot spot is incident upon the operative field territory of the relative opposite side in axis with the axis inclination.

19. operating lamp as claimed in claim 10 is characterized in that: said lighting unit is made up of light-emitting diode and collective optics.