CN102563397B - Operating lamp and its light transmission cover and light spot regulation method - Google Patents
Operating lamp and its light transmission cover and light spot regulation method Download PDFInfo
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- CN102563397B CN102563397B CN201010620795.8A CN201010620795A CN102563397B CN 102563397 B CN102563397 B CN 102563397B CN 201010620795 A CN201010620795 A CN 201010620795A CN 102563397 B CN102563397 B CN 102563397B
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Abstract
The invention discloses an operating lamp, and a light transmission cover and light spot regulation method of the operating lamp. The operating lamp comprises a light source, a housing, and a light transmission cover in front of the light source, wherein the light transmission cover includes a front cover and a back cover, at least one surface of the front cover is curved, at least one surface of the back cover is curved, the operating lamp further comprises a regulation device, and the relative position of the front and back covers is changed by the regulation device. The inventive operating lamp needs no control on the lamp base or internal illuminating devices, simplifies the internal structure, improves the reliability and can easily change the irradiation range.
Description
Technical field
The present invention relates to a kind of operating lamp, especially a kind of diffuser of operating lamp, hot spot control method.
Background technology
Operating lamp generally has numerous light source and relevant collective optics, and the convergence of rays each light source being launched by change collective optics exit direction, in operation region, visual area, realizes surgical light effect.Operating lamp generally needs to regulate operation visual area area light spot size to adapt to the needs of the operation of dissimilar or different incisions size.
The diffuser in existing operating lamp light source front mostly is pure-surface transparent panel or only for irregular, the randomly shaped transparent panel of uniform light spots effect.
Current operating lamp regulates the method for spot size to mainly contain two kinds:
(1) adopt and directly change the inner collective optics exit direction of operating lamp lamp holder.When changing lamp holder inside collective optics exit direction, need to control separately inner collective optics, such a process increases internal structure complexity, increase the inhomogeneities of illumination.
(2) adopt by changing the angle of lamp head unit lamp holder relative to operation visual area plane.When changing angle relative to operation visual area plane of lamp head unit lamp holder, need to control lamp holder various piece, such a process increases the unstability of lamp holder, increase the inhomogeneities of illumination.
Summary of the invention
Technical problem to be solved by this invention overcomes the deficiencies in the prior art, provides a kind of operating lamp, operating lamp diffuser and operating lamp hot spot control method, simplify operating lamp hot spot adjustment structure.
According to an aspect of the present invention, the invention provides a kind of operating lamp, comprise light source, shell, also comprise the diffuser being positioned at described light source front, described diffuser comprises front shroud and back cover, and at least one surface of described front shroud is curved surface, and at least one surface of described back cover is curved surface, also comprise adjusting device, changed the relative position of front shroud and back cover by described adjusting device.
According to a further aspect in the invention, the present invention also provides a kind of operating lamp diffuser, and described diffuser comprises front shroud and back cover, and at least one surface of described front shroud is curved surface, and at least one surface of described back cover is curved surface, and described front shroud and back cover can relative movements.
According to another aspect of the invention, the present invention also provides a kind of operating lamp hot spot control method, provides light source; There is provided diffuser, described diffuser comprises front shroud and back cover, and at least one surface of described front shroud is curved surface, and at least one surface of described back cover is curved surface; Described diffuser is placed in the front of described light source; Change the relative position of front shroud and back cover.
The invention has the beneficial effects as follows, by diffuser is divided into front shroud and back cover, and the curved surface that at least one surface of front shroud is, at least one surface of back cover is curved surface, change the relative position adjustment spot size of front shroud and back cover, this operating lamp does not need to control lamp holder or interior lighting device, while simplifying operating lamp structure, can also be easy to the scope changing operating lamp irradiation.
Accompanying drawing explanation
Operating lamp small light spot light path schematic diagram when Fig. 1 is front shroud and the back cover alignment of diffuser;
Fig. 2 is the front shroud of diffuser of the present invention and back cover operating lamp large spot light path schematic diagram when not lining up;
Fig. 3 is that diffuser does not change illuminating ray angle of emergence schematic diagram;
Fig. 4 is that diffuser of the present invention changes illuminating ray angle of emergence schematic diagram;
Fig. 5 is that diffuser of the present invention changes illuminating ray angle of emergence partial enlarged drawing;
Fig. 6 is a kind of detailed description of the invention of front shroud or back cover in the present invention;
Fig. 7 is surgery operation shadowless effect schematic diagram of the present invention;
Fig. 8 is existing surgery operation shadowless effect schematic diagram.
Detailed description of the invention
Pass behind detailed description of the invention to be described in further detail the present invention by reference to the accompanying drawings.
Operating lamp of the present invention, comprise light source, shell, also comprise the diffuser being positioned at described light source front, described diffuser comprises front shroud and back cover, at least one surface of described front shroud is curved surface, and at least one surface of described back cover is curved surface, also comprises adjusting device, changed the relative position of front shroud and back cover by described adjusting device.This operating lamp is by being divided into front shroud and back cover by diffuser, and the curved surface that at least one surface of front shroud is, at least one surface of back cover is curved surface, change the relative position adjustment spot size of front shroud and back cover, this operating lamp does not need to control lamp holder or interior lighting device, while simplifying operating lamp structure, the scope changing operating lamp irradiation can also be easy to.
Adjusting device can adopt line slideway, and as back cover maintains static, fixed rack on back cover, front shroud is fixed on slide block, carrys out moving slider by stirring slide block thus front shroud can be moved relative to back cover.In addition, governor motion can also adopt line slideway to realize driving front and back cover relative movement by rotary operation lamp central handgrip in conjunction with Shape closed type cam structure, as back cover maintains static, fixed rack on back cover, front shroud is fixed on enclosed type rectangular frame slide block, a cam is fixed in operating lamp central handgrip, make cam and handle can together with rotate, be assemblied in by cam in this enclosed type rectangular frame slide block simultaneously and form Shape closed type cam structure, rotating cam band movable slider moves linearly along slide rail.Adjusting device can also adopt other structures.
Above-mentioned curved surface comprises at least one in faceted pebble, hyperboloid, triangular surface or sine surface, as long as curved surface comprises certain fluctuating, specifically can be selected from the one of faceted pebble, hyperboloid or triangular surface, can also be selected from wherein two or more.In diffuser, front shroud has at least a surface to be curved surface, and back cover has at least a surface to be the scheme of curved surface can be the front surface of front shroud to be curved surface, and the rear surface of front shroud is plane, and the front surface of back cover is plane, and the rear surface of back cover is curved surface; Can also be the front surface of front shroud be plane, the rear surface of front shroud be curved surface, and the front surface of back cover is plane, and the rear surface of back cover is curved surface; Can also be the front surface of front shroud be curved surface, the rear surface of front shroud be plane, and the front surface of back cover is curved surface, and the rear surface of back cover is plane; Can also be the front surface of front shroud be plane, rear surface be curved surface, and the front surface of back cover is curved surface, and the rear surface of back cover is plane.Change the relative position of front shroud and back cover, light just can be made to be changed by the direction of the light of front and back diffuser, realize the size changing hot spot.
Diffuser can also be double-layer structure, comprises front shroud and back cover, can also be three-decker, namely also comprise middle cover, also can be the structure of more than three layers.
Specifically please refer to Fig. 1, operating lamp comprises shell 1, light source assembly and diffuser, and light source assembly comprises lighting unit 2, lighting unit 3 and lighting unit 4.Lighting unit 2 launches illuminating bundle 5, lighting unit 3 launches illuminating bundle 6, lighting unit 4 launches illuminating bundle 7, illuminating bundle 5,6,7 has different exit direction, illuminating bundle 5 has beam projecting dispersion angle 8, illuminating bundle 6 has divergence of beam angle 9, and illuminating bundle 7 has divergence of beam angle 10.Illuminating bundle 5,6,7 is through front shroud 11, and the front surface of front shroud 11 is plane, and the rear surface of front shroud 11 is faceted pebble.This faceted pebble refers to the facet having numerous certain angle and place, and its section is concavo-convex zigzag.Light beam is after front shroud 11, then through back cover 12, the front surface shape of back cover 12 is identical with the rear surface of front shroud 11, and the rear surface of back cover 12 is plane, and namely back cover 12 is identical with front shroud 11 shape size, just oppositely places.
As shown in Figure 1, the concave point of front shroud 11 and the salient point one_to_one corresponding of back cover 12 are placed, namely equidistant airspace is formed in the middle of front shroud and back cover, because airspace is equal all the time, light beam is successively by front shroud 11, air, after there is transmission and refraction in back cover 12, new light beam 13 is formed after illuminating bundle 5 outgoing, new light beam 14 is formed after illuminating bundle 6 outgoing, new light beam 15 is formed after illuminating bundle 7 outgoing, and form new light beam 13 after outgoing, 14, 15 do not change, outgoing beam 13 has the angle of divergence 16, outgoing beam has the angle of divergence 17, outgoing beam 15 has the angle of divergence 18, the outgoing angle of divergence 16, 17, 18 with angle 8, 9, 10 is equal, then light beam 13, 14, 15 converge to operation region, visual area forms the even light beam 19 with certain illumination depth, a uniform illumination spot 21 is formed in focal plane 20.
When needing the size changing illumination spot 21, specifically please refer to Fig. 2, mobile front shroud 11 or back cover 12, or move front shroud 11 and back cover 12 simultaneously, thus change the position of front shroud 11 relative to back cover 12, when the bump location anon-normal pair of the concave point of front shroud 11 rear surface and the front surface of back cover 12, front shroud 11 and the middle wedge air interval forming Unequal distance of back cover 12, such light beam is different by there is deviation amount after front shroud 11, air, back cover 12 successively, thus increases the beam projecting angle of divergence 16 ', 17 ', 18 ' of outgoing beam 13,14,15 respectively.Make front shroud 11 relative 12 translation occur to the right, the concave point of front shroud 11 is gradually away from the salient point of back cover 12, and now hot spot will become large gradually.When the concave point and back cover 12 that make front shroud 11 concave point one by one just pair time, as shown in Figure 2, the beam projecting angle of divergence 16 ', 17 ', 18 ' of outgoing beam 13,14,15 is maximum, and illumination spot 21 ' is in maximum position.If make the relative back cover 12 of front shroud 11 continue to right translation, the concave point of front shroud 11 moves closer to the salient point of back cover 12, and now hot spot will diminish gradually.
Light beam 5,6,7 is when front shroud 11, back cover 12, the main beam projecting dispersion angle 16,17,18 changing outgoing beam 13,14,15 respectively, but the exit direction of overall beam is substantially constant, both the diameter of illumination spot can be changed during such adjustment spot diameter, ensure again have even light beam 19 all the time in original illumination depth in field of illumination, and do not change the position of focal plane 20.Simultaneously, this technology ensures that the light that each lighting unit of operating lamp occurs can be irradiated to illumination spot region substantially completely, therefore, even if when operating lamp lamp holder is blocked by limb parts such as doctor's heads, operation illumination spot region, visual area also there will not be obvious shade, greatly improves surgery operation shadowless effect.
On the basis of above-mentioned embodiment, lighting unit can be one, also can be two, can also be multiple, and the preferred LED of light source is as light source, and the light transmit direction of light source can also comprise a collective optics, this collective optics can adopt collector lens.
On the basis of above-mentioned embodiment, the size of the sawtooth of this faceted pebble can be identical, also can be different.On the basis of above-mentioned embodiment, diffuser not only two orthogonal directions can form two-dimension periodic distribution of amplitudes in cartesian coordinate system, also can be along Z axis axial height direction and circumferentially formation two-dimension periodic distribution of amplitudes in cylindrical coordinate.When curved surface is in orthogonal direction period profile, front shroud and back cover can change spot size along orthogonal direction translation.When curved surface is in axial height and circumferencial direction period profile, front shroud can change spot size with back cover around relative rotation of axle.
The present invention also provides a kind of operating lamp diffuser, and diffuser comprises front shroud and back cover, and at least one surface of front shroud is curved surface, and at least one surface of back cover is curved surface, and front shroud and back cover can relative movements.
By diffuser is divided into front shroud and back cover, and the curved surface that at least one surface of front shroud is, at least one surface of back cover is curved surface, change the relative position adjustment spot size of front shroud and back cover, this operating lamp does not need to control lamp holder or interior lighting device, while simplifying operating lamp structure, the scope changing operating lamp irradiation can also be easy to.
In order to embodiments of the invention can be well understood, provide a lot of concrete details and describe and describe in detail.But those skilled in the art can recognize, certain or some concrete details are wherein omissible, or also can use other method, element or material.In some cases, some operating procedure is not described in detail.
The present invention also provides a kind of operating lamp spot size control method, provides light source; There is provided diffuser, described diffuser comprises front shroud and back cover, and at least one surface of described front shroud is curved surface, and at least one surface of described back cover is curved surface; Described diffuser is placed in the front of described light source; Change the relative position of front shroud and back cover.
Said method is by being divided into front shroud and back cover by diffuser, and the curved surface that at least one surface of front shroud is, at least one surface of back cover is curved surface, change the relative position adjustment spot size of front shroud and back cover, this operating lamp does not need to control lamp holder or interior lighting device, while simplifying operating lamp structure, the scope changing operating lamp irradiation can also be easy to.
Specifically please refer to Fig. 3 and Fig. 4, be faceted pebble, and front shroud is identical with the shape size of back cover before the rear surface of front shroud and back cover.In figure 3, the front surface of front shroud 11 is planes 22, rear surface is faceted pebble 23, the front surface of back cover 12 is faceted pebbles 25, the rear surface of back cover is plane 24, when front shroud 11 and back cover 12 are just to placement, just placement is referred to that the concave point of the rear surface faceted pebble 23 of front shroud 11 is just to the salient point of the front surface faceted pebble 25 of back cover 12.Equally spaced airspace 26 is formed like this between front shroud 11 and back cover 12, incident ray 27 is incident through 11,26,12 from side, the refractive index of front shroud 11, back cover 12 is different from airspace 26, light interface before and after airspace 26 can reflect, but because airspace is equal everywhere, light passes through the equivalent optical path of 12,26,13, and therefore also identical in the angle of front and back interfacial refraction, the direction of final light 28 outgoing does not change.
On the basis of above-mentioned embodiment, front shroud can be identical with the refractive index of back cover, also can not be identical.
When needing the size changing illumination spot, specifically please refer to Fig. 4, mobile front shroud 11 or back cover 12, or move front shroud 11 and back cover 12 simultaneously, thus change the position of front shroud 11 relative to back cover 12, when the bump location anon-normal pair of the concave point of front shroud 11 rear surface and the front surface of back cover 12, front shroud 11 and the middle wedge air interval forming Unequal distance of back cover 12, such light beam is different by there is deviation amount after front shroud 11, air, back cover 12 successively, thus increases the beam projecting angle of divergence of outgoing beam respectively.Such as, make relative 12 translations of front shroud 11, the concave point of front shroud 11 is gradually away from the salient point of back cover 12, and now hot spot will become large gradually.When the concave point and back cover 12 that make front shroud 11 concave point one by one just pair time, the beam projecting angle of divergence of outgoing beam is maximum, and illumination spot is in maximum position.If make the relative back cover 12 of front shroud 11 continue translation, the concave point of front shroud 11 moves closer to the salient point of back cover 12, and now hot spot will diminish gradually.
Illustrate with back cover, the horizontal range of concave point and salient point is distance 29 in figure, distance 29 is larger, the concave-convex sense of diffuser is stronger, if get concave point and salient point horizontal level intermediate point is basic point, concave point and salient point are equivalent to vibrate around the one-period of basic point, its amplitude A being equivalent to back cover 12 of distance 29 produce total vibration displacement 2A, the salient point of back cover and the vertical range of salient point are distance 31 in figure, and it is equivalent to the vibration period T of back cover.Front shroud 11 is identical with back cover 12 principle.Front shroud 11 is distance 30 to the distance of back cover 12, and it is equivalent to the thickness D of space interval.
In the diagram, change front shroud 11 relative to the relative position of back cover 12, make the concave point of front shroud 11 rear surface 23 correspond to the concave point of back cover 12 front surface 25, formed between 11 and 12 like this continuous print, unequal-interval, wedge air interval 26; Light interface before and after airspace 26 can reflect, but because airspace is unequal everywhere, panel is different with the refractive index of air, therefore light is also unequal by the light path of 11,26,12 everywhere, light is not identical in the angle of front and back interfacial refraction yet, light generation deviation after the outgoing of final light 28, produces the extra outgoing angle of divergence 32.When concave point and concave point just pair time, the outgoing angle of divergence 32 that front shroud and back cover produce is maximum.
In a kind of concrete embodiment, light source adopts LED, and the design angle of divergence of spot size and LED its own transmission angle, concentrating component optical design and concentrating component, the exit direction of collective optics are relevant.The lighting unit bright dipping aperture formed due to LED and concentrating component is all smaller, about 15-40mm, and clinical demand requires that the illumination spot diameter at distance lamp holder 1000mm place is generally at about 200mm, the light of each lighting unit outgoing has certain angle of divergence for this reason, as shown in outgoing dispersion angle in Fig. 18,9,10, owing to only needing the hot spot forming about 200mm at 1000mm place, so their angle of divergence is very little, generally at about 10 degree.Such as, operating lamp is required to produce at distance lamp holder 1000mm place the illumination spot that diameter is about 150mm ~ 250mm, that is (as in Fig. 2 21 ') can even variation from 150mm (as Fig. 1 21) to 250mm to need hot spot, namely based on small light spot, need the hot spot variable quantity of 100mm, namely when adopting change beam divergence angle to change spot size, the angle of divergence knots modification needed is approximately arctan (100/1000) ≈ 5 ~ 6 degree, and the angle of divergence 16,17,18 increases to the angle of divergence 16 ', 17 ', 18 ' as shown in Figure 2 as shown in Figure 1.
Light is through a different refractivity wedge gap in theory, and the angle departing from the direction in original path of light is determined by the angle of wedge of wedge gap.In a specific embodiment, the maximum angle of wedge angle that front shroud and back cover combinationally use the wedge-shaped air gap of generation determines the angle of the maximum outgoing angle of divergence in Fig. 4.
Fig. 5 is the partial enlarged drawing of Fig. 4, article two, parallel rays 33,34 is respectively through front shroud 11, air, back cover 12 outgoing, wherein front shroud concave point relative with the concave point of back cover, in Fig. 5 29 be back cover amplitude A produce total vibration displacement 2A, 31 is the cycle T of front shroud.There is deviation in light 33,34, respectively corresponding emergent ray 33 ' and 34 ' after the front shroud and back cover of diffuser, and the angle of deviation is respectively 35,36, and two light become divergent beams, and 37 is the angle of divergence.As can be seen from Figure 5 the angle of wedge 38 of wedge-shaped air gap is determined by the amplitude A of front shroud and back cover and cycle T, and approximate calculation obtains, and when two faceted pebble panel concave points are relative with concave point, angle of wedge angle is about 8A/T.Meanwhile, deflection angle 35,36 is determined by the size of the angle of wedge 38, and namely the angle of divergence 37 is determined by the size of the angle of wedge 38, and obtained by approximate calculation, the angle of divergence 37 approximates the half of the angle of wedge 38 of wedge-shaped air gap.Therefore, the amplitude A of front shroud and back cover and the ratio A/T of cycle T determine the angle of the maximum outgoing angle of divergence.When light is after front shroud and back cover, the angle of divergence recruitment of light is about the half of angle of wedge angle.Maximal regulated angle refers to the change by regulating front shroud and back cover relative position, and make the variable quantity relative to incident ray dispersion angle of emergent ray dispersion angle, then the maximal regulated angle of described diffuser is 4A/T.
In a kind of detailed description of the invention, if when needing distance lamp holder 1000mm place spot diameter to need to increase 100mm, then 0.5 × 8A/T ≈ arctan (100/1000), i.e. T ≈ 40A.When namely needing distance lamp holder 1000mm place spot diameter to need recruitment to be Δ Cmm, the design relation that the amplitude A of front shroud and back cover and cycle T are followed is 4A/T ≈ arctan (Δ C/1000).
The cycle T of front shroud and back cover determines the uniformity coefficient in angle of divergence angular range of emergent ray 28 relative to the width size of incident beam, cycle T is less relative to incident light width, more even in angle of divergence angular range through the light beam dispersed.For LED surgery lamp, in order to improve the illumination uniformity of whole operating lamp further when throwing light on for large spot, general fetch cycle T is about less than or equal to the half of single led lighting unit beam diameter.
In the concrete mode of one, during diffuser, not only to consider the relation of diffuser amplitude A and cycle T according to angle of divergence knots modification, while also to consider the relation of space thickness D between two faceted pebble panels and cycle T.Consider front shroud and the back cover mobile structure space etc. needed mutually of diffuser, usual D > 0, and D is more conducive to structural design more greatly.But space thickness D can not be excessive, if space thickness D compares excessive with cycle T, such as during D ≈ T, when two faceted pebble panel concave points are relative with salient point, light near front shroud rear surface concave point (or salient point) arrives back cover front surface can be incident by non-parallel face, such light can change the direction of emergent ray after front shroud and back cover, thus increases minimum illumination spot diameter.Therefore in order to make diffuser ensure when waiting airspace not change deflection of light angle in a large number, space thickness D should be the smaller the better, consider operating lamp practical situations, make space thickness D between the cycle T of front shroud and back cover and front and back cover, approximate when meeting D≤0.25T, diffuser can ensure to ensure that when waiting airspace light deviation does not occur substantially, and light is with original direction by diffuser, and operation visual area spot size is consistent with when there is not diffuser.
As shown in Figure 6, in a kind of concrete embodiment, the rear surface of front shroud 11 and the front surface of back cover 12 can adopt two-dimensional structure 233, when it just can regulate the angle of divergence of two-dimensional directional when two-dimensional directional has cycle distribution of amplitudes simultaneously simultaneously, all there is cycle distribution of amplitudes in XY direction in it.Make front shroud and back cover along grid diagonal generation translation, generally, namely along front shroud and back cover peak and minimum point line direction in other words along maximum airspace point and some line direction, minimum airspace can be produced, hot spot just can be made to change from big to small.Front shroud and back cover also can for the cycle distribution of amplitudes be made up of dissimilar curved surface; Can also be front shroud rear surface be plane, back cover front surface be curved surface; Diffuser not only can form two-dimension periodic distribution of amplitudes in XY direction, also can for form two-dimension periodic distribution of amplitudes in axis and radial direction.When curved surface is in XY direction period profile, front shroud and back cover can change spot size in the translation of XY direction; When curved surface is in axial and radial period profile, front shroud can change spot size with back cover around relative rotation of axle.
This hot spot control method changes shape or the position at air (or other media) interval formed between faceted pebble panel, the angle of divergence of operating lamp emergent ray can be changed simultaneously to some extent, thus easily realize changing operating lamp illumination spot size.Adopt this diffuser operating lamp have and can spot size adjustable range be set arbitrarily, in hot spot adjustment process, illumination spot changes evenly all the time, the accumulation point (or focal plane) that throws light on remains constant feature; Adopt this faceted pebble panel to regulate hot spot mode can ensure the no matter large or small hot spot of operating lamp, all have consistent, good in shadow effect; Meanwhile, this panel can simplify operating lamp internal structure, improves operating lamp structural reliability.
Adopt the operating lamp of diffuser of the present invention and the operating lamp of prior art after large spot illumination condition without shadow Contrast on effect, specifically please refer to Fig. 7 and Fig. 8.
Surgery operation shadowless effect schematic diagram of the present invention at Fig. 7, baffle plate 54 is the equivalent that doctor's head etc. blocks, a part of light will be blocked when 54 are positioned at lamp holder and operative region is direct, in figure, some or all light of lighting unit 9,10 are blocked by 54, but due to lighting unit 2, there is after faceted pebble panel the larger outgoing angle of divergence, the illumination spot 21 in whole focal plane 20 can be illuminated separately, block front and back spot size and do not have significant change, visible to adopt the operating lamp of diffuser of the present invention to have excellent in shadow effect.
Fig. 8 is existing surgery operation shadowless effect schematic diagram, and lighting unit 41,42,43 launches different light beams 44,45,46 respectively, then arrives operative region by planar transparent panel 47 outgoing, by lighting unit 41, 43 send skew ray bundle 44, the path of the aspect effect operating lamp light path of the central ray of 46, thus affect region, visual area spot size, angle 48 between the vertical line direction of the light beam 44 of citing definition here central ray and horizontal plane direction is the angle of lighting unit and horizontal plane (i.e. lamp holder plane), this angle can change according to spot size demand, when lighting unit 42, after some or all light of 43 are blocked by baffle plate 54, the light of lighting unit 41 can only partly illuminate focal plane 50, form less illumination spot 51, block front and back spot size and there is significant change, therefore, poor without shadow effect during existing operating lamp large spot.
Adjustment LED surgery lamp illumination spot magnitude function is realized by the relative position changing front shroud and back cover, stable, effective, uniform illumination spot not only can be formed before focal plane, have excellent in shadow effect, and change relative position easily realizes on mechanical function, frame for movement is simple, reduces operating lamp infrastructure cost.
Above-mentioned diffuser not only may be used for operating lamp, or the lighting of other field, can realize equally regulating spot size.
The technical characteristic described in the embodiment of the present invention or operating procedure can combine in any suitable manner.Those skilled in the art's easy understand, the step in the method that the embodiment of the present invention describes or the order of action can change.Therefore, requiring certain order except as otherwise noted, is in order to illustrative object at accompanying drawing or any order in describing in detail, instead of necessary order.
Below describe the present invention by specific embodiment, but the present invention is not limited to these concrete embodiments.It will be understood by those skilled in the art that and can also make various amendment, equivalent replacement, change etc. to the present invention, as long as these conversion do not deviate from spirit of the present invention, all should within protection scope of the present invention.In addition, " embodiment " or " another embodiment " described in above many places etc. represent different embodiments, can certainly by its all or part of combination in one embodiment.
Described the present invention by specific embodiment above, but the present invention is not limited to these specific embodiments.It will be understood by those skilled in the art that and can also make various amendment, equivalent replacement, change etc. to the present invention, as long as these conversion do not deviate from spirit of the present invention, all should within protection scope of the present invention.
Claims (10)
1. an operating lamp, comprise light source, shell, it is characterized in that: described light source comprises at least two lighting units, the light beam that described lighting unit sends coalescence can form a hot spot in operation region, visual area, also comprise the diffuser being positioned at described light source front, described diffuser comprises front shroud and back cover, at least one surface of described front shroud is curved surface, and at least one surface of described back cover is curved surface, also comprise adjusting device, the relative position changing described front shroud and back cover by described adjusting device regulates the size of described hot spot;
Wherein said curved surface is faceted pebble, and the shape size of described faceted pebble is identical; The space interval thickness of front shroud and back cover is D, meets D≤0.25T, and T is the cycle of front shroud and back cover.
2. a kind of operating lamp as claimed in claim 1, described adjusting device refers to installs line slideway or eccentric wheel structure on front shroud and/or back cover.
3. operating lamp according to claim 1, is characterized in that: the maximal regulated angle of described operating lamp is 4A/T, and wherein A is the amplitude of front shroud and back cover.
4. an operating lamp diffuser, it is characterized in that: described diffuser comprises front shroud and back cover, at least one surface of described front shroud is curved surface, and at least one surface of described back cover is curved surface, and described relative movement can regulate the size of operation visual area area light spot by front shroud and back cover; Described diffuser is configured to the front of the multiple light sources being positioned at operating lamp;
Wherein said curved surface is faceted pebble, and the shape size of described faceted pebble is identical; The space interval thickness of front shroud and back cover is D, meets D≤0.25T, and T is the cycle of front shroud and back cover.
5. operating lamp diffuser according to claim 4, is characterized in that: the maximal regulated angle of described diffuser is 4A/T, and wherein A is the amplitude of front shroud and back cover.
6. an operating lamp hot spot control method, is characterized in that:
There is provided light source, described light source comprises at least two lighting units, and the light beam that described lighting unit sends coalescence can form a hot spot in operation region, visual area;
There is provided diffuser, described diffuser comprises front shroud and back cover, and at least one surface of described front shroud is curved surface, and at least one surface of described back cover is curved surface;
Described diffuser is placed on the light transmit direction of described light source;
Change the relative position of described front shroud and described back cover to regulate the size of described hot spot;
Wherein said curved surface is faceted pebble, and the shape size of described faceted pebble is identical; The space interval thickness of front shroud and back cover is D, meets D≤0.25T, and T is the cycle of front shroud and back cover.
7. operating lamp hot spot control method as claimed in claim 6, be is characterized in that: the relative position being changed front shroud and back cover by translation.
8. operating lamp hot spot control method as claimed in claims 6 or 7, it is characterized in that: the rear surface of described front shroud and the front surface of described back cover are curved surface, and described curved surface comprises salient point and concave point, when needs make hot spot diminish, mobile front shroud and/or back cover, make salient point and concave point tend to just right;
When needs make hot spot become large, mobile front shroud and/or back cover, make salient point and salient point or concave point and concave point trend just right.
9. operating lamp hot spot control method as claimed in claim 8, is characterized in that: when needs make hot spot diminish, mobile front shroud and/or back cover, makes salient point and concave point just right; When needs make hot spot become large, mobile front shroud and/or back cover, make salient point and salient point just right.
10. operating lamp hot spot control method as claimed in claim 9, it is characterized in that, the maximal regulated angle of described operating lamp is 4A/T, and wherein A is the amplitude of front shroud and back cover.
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| CN201010620795.8A CN102563397B (en) | 2010-12-31 | 2010-12-31 | Operating lamp and its light transmission cover and light spot regulation method |
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| CN201010620795.8A CN102563397B (en) | 2010-12-31 | 2010-12-31 | Operating lamp and its light transmission cover and light spot regulation method |
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| CN102563397B true CN102563397B (en) | 2015-01-07 |
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| CN103836545A (en) * | 2012-11-26 | 2014-06-04 | 康源医疗设备股份有限公司 | Electric-control adjustment structure for illumination zone |
| CN104214693B (en) * | 2013-05-31 | 2019-04-26 | 北京谊安医疗系统股份有限公司 | For installing the supporting structure of reflector |
| CN205619005U (en) * | 2016-05-04 | 2016-10-05 | 邹小锋 | Outdoor led lamp |
| CN108954227A (en) * | 2018-08-20 | 2018-12-07 | 上海彩丞新材料科技有限公司 | A kind of lens subassembly of changeable spot size |
| WO2020087542A1 (en) * | 2018-11-02 | 2020-05-07 | 南京迈瑞生物医疗电子有限公司 | Operating room lighting system, control method and device thereof, and storage medium |
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| US6809869B2 (en) * | 2002-08-28 | 2004-10-26 | Genlyte Thomas Group Llc | Zoomable beamspreader for non-imaging illumination applications |
| CN101382262A (en) * | 2008-10-17 | 2009-03-11 | 上海品兴科技有限公司 | Light path structure for operating astral lamp |
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| EP0757280A2 (en) * | 1995-08-01 | 1997-02-05 | Eastman Kodak Company | Zoom flash with transversely displaceable wave-lens elements for adjusting the scene coverage angle of the light beam |
| US6400905B1 (en) * | 1999-08-26 | 2002-06-04 | Canon Kabushiki Kaisha | Lighting angle variable lighting device |
| EP1731955A1 (en) * | 2005-06-09 | 2006-12-13 | Sony Ericsson Mobile Communications AB | Flash device for an electronic equipment for a wireless communication system and method for operating a flash device for an electronic equipment |
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