EP1604145A1 - Lampenanordnung - Google Patents
LampenanordnungInfo
- Publication number
- EP1604145A1 EP1604145A1 EP04721876A EP04721876A EP1604145A1 EP 1604145 A1 EP1604145 A1 EP 1604145A1 EP 04721876 A EP04721876 A EP 04721876A EP 04721876 A EP04721876 A EP 04721876A EP 1604145 A1 EP1604145 A1 EP 1604145A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- housing
- arrangement according
- engagement
- housing shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009413 insulation Methods 0.000 claims abstract description 19
- 230000003287 optical effect Effects 0.000 claims description 81
- 239000012809 cooling fluid Substances 0.000 claims description 32
- 238000001816 cooling Methods 0.000 claims description 21
- 230000033001 locomotion Effects 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000008602 contraction Effects 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 description 13
- 239000011521 glass Substances 0.000 description 9
- 230000004907 flux Effects 0.000 description 7
- 230000007246 mechanism Effects 0.000 description 7
- 238000012549 training Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000799 fluorescence microscopy Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/15—Thermal insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
Definitions
- the invention relates generally to a lamp arrangement comprising a lamp housing and at least one lamp arranged in the lamp housing.
- the lamp can be, for example, an arc lamp or a discharge lamp.
- the term "lamp” here refers to the actual "illuminant", which is usually in the form of a glass bulb in which, in the case of an incandescent lamp, a metal filament is electrically heated so that it becomes incandescent.
- the glass bulb contains electrodes and a gaseous medium which is brought to discharge.
- metal vapor lamps low pressure lamps or high pressure lamps
- noble gas high pressure lamps are thought of.
- the lamp in question is preferably interchangeable. It is also expedient if the lamp (the illuminant) is adjustable relative to a light exit from the lamp housing.
- the glass bulb temperature should be relatively high (for example about 600 to 800 ° C.) and that the air flowing around the glass bulb, which may be provided for cooling, is not subject to any turbulent flow. This creates z. B. when using arc lamps in a laboratory environment, the problem that the lamp itself must be kept at a high temperature level, but the outside temperature of the device has to meet the usual technical regulations (surface temperature well above 100 ° C) or optics, mechanics and electronics that are possibly in close proximity should or must be kept at a comparatively low temperature.
- the entire device or an entire measurement set-up should also be in a thermal equilibrium, and this thermal equilibrium should be established quickly.
- optical applications such as microscopic applications or fluorescence microscopic applications, there is often an optical system or optics in close proximity to the lamp or lamp arrangement which require exact adjustment or in which an adjustment that has been carried out should be retained as far as possible.
- the lamp housing is designed with a plurality of nested housing shells in order to provide multi-stage thermal insulation of an environment or housing surface of the lamp housing from one Provide lamp-containing housing interior, at least partially surrounded by the housing shells.
- a very good, multi-step thermal insulation of the interior of the housing from the environment can be achieved by the housing shells forming a kind of "multi-stage shell system", the thermal insulation on the one hand by thermally insulating material in the sense of a "barrier” and on the other hand by targeted removal of Heat can be achieved from at least one intermediate space formed between two housing shells, for example by means of a cooling fluid flow.
- nested cooling fluid flows are, for example, a low, preferably laminar flow of cooling fluid through the interior of the housing, which ensures the desired operating conditions for the lamp, and a stronger and thus more cooling cooling fluid flow through a space formed between two housing shells.
- the intermediate space in the housing contains an insulation layer. It can be provided that the insulation layer is formed by a heat-insulating material or by a vacuum or vacuum area.
- a cooling fluid flow in particular cooling air flow
- a first cooling fluid flow that can be passed through the housing interior can be set or adjusted in relation to a second or further cooling fluid flow that can be guided through the space between the housing in such a way that the first cooling fluid flow has a lower temperature gradient between the lamp and the lamp in view of the desired operating conditions for the lamp the housing shell delimiting the housing provides as a temperature gradient provided by the second cooling fluid flow between the two housing shells delimiting the housing interspace.
- a supply cooling fluid stream can be divided between the first and second cooling fluid streams and / or that the first and second cooling fluid streams can be combined to form a discharge cooling fluid stream.
- Essentially dust-free air is preferably used as the cooling fluid stream (in particular first or second cooling fluid stream or Supply cooling fluid flow) is used.
- a corresponding feed device can be provided for this, for example in the form of a ventilator, possibly with an associated filter arrangement.
- the lamp housing is arranged in an essentially dust-free interior of a housing arrangement of an optical device, into which the lamp arrangement emits its illuminating light during operation through the light exit.
- a preferred embodiment is characterized in that an optical axis that passes through the light exit and intersects a target lighting region of the lamp is defined or definable, and that the housing shells are each in or in close proximity to a plane containing the optical axis relative to a base of the lamp housing are supported or held.
- the required optics which ensure that the luminous flux of the lamp, in particular an arc lamp, can be used in the desired manner outside the heat housing in the housing shells or the shell system.
- problems can result from a thermal expansion of structural elements or holding elements of the lamp arrangement, which occurs after the lamp is switched on or when the light output changes, for example by means of a dimmer arrangement. It could happen that one or more optical components, which in operation influence the illuminating light flow through the light exit of the lamp housing, move away from a relative or absolute target position as a result of a thermal expansion or thermally induced change in position of the holding element. For example, the alignment of several optical elements with respect to one another (in particular coaxiality) could be impaired.
- a lamp arrangement comprising a lamp housing and at least one lamp arranged in the lamp housing, preferably replaceable or / and adjustable relative to a light exit of the lamp housing, in particular an arc lamp or discharge lamp, further comprises at least one Proposed in or on the lamp housing by means of at least one holding element, which during operation influences the illuminating light flow through the light exit, an optical axis passing through the light exit and intersecting a target lighting area of the lamp being defined or definable, proposed according to a second aspect of the invention, that at least one holding element, which holds at least one optical component influencing the illumination light flow through the light exit, in or in close proximity to a plane containing the optical axis relative to a The base of the lamp housing is supported or held in such a way that a change in the positioning of the optical component relative to the optical axis as a result of thermal expansion or contraction of the holding element is avoided or minimized.
- the holding element can be formed by one of the housing shells according to the invention.
- the innermost housing shell immediately surrounding the interior of the housing is considered.
- At least one holding element which holds at least one optical component forming the light exit, is supported or held in or in close proximity to the plane containing the optical axis. It is further proposed that at least one holding element, which at least one optical component arranged between the light outlet and the lamp, through which the illuminating light falls, is supported or held in or in close proximity to the plane containing the optical axis.
- the holding element in question extends from the plane containing the optical axis in a direction that is orthogonal to one another and opposite to the plane.
- the holding element acts directly or indirectly on the optical component at first sections lying at the level of the plane and / or at second sections which are spaced apart from one another in the direction orthogonal to the plane and lie on different sides of the plane.
- the first sections can lie on different sides of a further plane orthogonal to the plane and also containing the optical axis.
- the second sections each have approximately the same distance from the plane and / or that the first sections each have approximately the same distance from the further plane.
- the holding element or at least one holding element can be formed by a housing shell of the lamp housing.
- the lamp housing preferably has a plurality of housing shells. At least one of these housing shells or several or all of these housing shells can (each) in or in close proximity to one the plane containing the optical axis is supported or held relative to a base of the lamp housing in order to at least minimize a temperature response of an optical component held directly or indirectly by the relevant housing shell.
- arc lamps also emit in spatial directions in which no light is actually needed.
- an arc lamp emits photons evenly in all spatial directions perpendicular to the arc.
- suitable optical elements such as lenses
- a suitable mirror arrangement in particular a retroreflector arrangement
- a lamp arrangement comprising a lamp housing and at least one lamp which is arranged in the lamp housing and is preferably exchangeable or / and adjustable relative to a light outlet of the lamp housing, in particular an arc lamp or discharge lamp, a lamp going through the light outlet and a target lighting area of the lamp-intersecting optical axis is defined or definable, according to a third aspect of the invention it is proposed that the lamp be arranged between the light outlet and a reflector arrangement reflecting in the direction of the light outlet, and that the reflector arrangement be from outside the lamp housing or at least one Housing shell of the lamp housing on mechanical Paths are at least approximately adjustable in the direction of the optical axis and / or can be pivoted in relation to a pivot point located in an interior of the lamp housing or the housing shell and / or can be displaced in the lateral direction to the optical axis.
- a special adjustment option for the reflector arrangement for example a retroreflector, is provided from the outside, which makes it possible to suitably adjust the back-reflected photon stream.
- the adjustment mechanism should ideally have as little impact as possible on the temperature conditions prevailing in the lamp arrangement, in particular the temperature gradients that arise. This is particularly important in the case of arc lamps, since - as mentioned above - the temperature conditions on the glass bulb should be as constant as possible within a certain temperature interval.
- Reflector arrangement at least with respect to a pivoting movement about the pivot point, motion-coupled actuator has at least one engagement edge or engagement surface, which in the case of a
- Reflector arrangement is implemented around the pivot point.
- Engagement surface and / or the counter-engagement surface can be an annular surface or ring surface segment. Furthermore, the engagement edge or the counter-engagement edge can be designed as a ring edge or ring edge segment.
- the engaging edge and the counter-engaging surface or the engaging surface and the counter-engaging edge or counter-engaging edge form a contact seal or are designed with at least one separate sealing element, which, if desired, is imparted to an interior of the housing shell against a Seal the outside environment of the housing shell or at least shield it.
- the sealing or shielding helps to ensure that the temperature conditions are constant and independent of the current adjustment. In particular, it can be achieved that the temperature gradient is not undesirably influenced by the adjustment and the adjustment mechanism.
- the engagement surface and / or the counter-engagement surface is formed by a cylinder surface or a cylinder surface segment of the lamp housing or the housing shell or an intermediate element attached thereto, the cylinder axis of which essentially passes through the pivot point , so that the reflector arrangement can be pivoted in an angular degree of freedom by moving the actuating member relative to the housing shell.
- pivotability in two angular degrees of freedom which are preferably independent of one another, is preferred.
- the engagement surface and / or the counter-engagement surface is formed by a spherical surface or a spherical surface segment of the lamp housing or the housing shell or an intermediate member attached to it, the center of which spherically coincides with the pivot point, so that the reflector arrangement is formed by Moving the Actuator is pivotable relative to the housing shell in two degrees of freedom.
- the lamp housing can be designed with a plurality of housing shells nested inside one another.
- the actuating member has at least one engagement surface or engagement edge assigned to one of the housing shells, which engages or can be brought into engagement with a counter-engagement surface or counter-engagement edge on this housing shell.
- the actuating member has at least one engagement surface or engagement edge assigned to an outer housing shell, which engages or can be brought into engagement with a counter-engagement surface or counter-engagement edge on the outer housing shell.
- the actuating member has at least one engagement surface or engagement edge assigned to an inner housing shell, which engages or can be brought into engagement with a counter-engagement surface or counter-engagement edge on the inner housing shell.
- At least one sealing element is effective between the actuating member or the reflector arrangement on the one hand and the inner housing shell in order to seal or at least shield an interior of the housing shell from an external environment of the housing shell. It is also particularly advantageous with regard to the provision of extensive adjustment options that the lamp housing and / or the actuating member have a feedthrough for a sliding member, which has an adjustment in the direction of a feedthrough defined by the feedthrough, preferably coinciding with the optical axis or in agreement bringable axis of motion is motion coupled to the reflector assembly. It is particularly contemplated that the actuating member has a feedthrough for the sliding member, preferably in one position of the actuating member on the housing shell the movement axis essentially coincides with the optical axis or can be brought into agreement.
- the inventions and further training proposals according to the first aspect can be combined with the inventions and further training proposals according to the second aspect. Furthermore, the invention and further training proposals according to the first aspect can also be combined with the inventive and further training proposals according to the third aspect. Furthermore, the invention and further training proposals according to the second aspect can be combined with the inventive and further training proposals according to the third aspect. Finally, the invention and further training proposals can be combined with one another in accordance with all three aspects.
- the lamp housing has at least one optics integrated therein, for example a lens or lens arrangement.
- the optics can in particular be integrated into a housing shell of the lamp housing.
- Fig. 1 shows a first example of a lamp according to the invention, especially an arc lamp, with several housing shells.
- FIG. 2 shows one possibility, such as the photon flux emanating from a lamp (for example an arc lamp) using a collection optics and one
- Retroreflectros can be used particularly efficiently.
- FIG. 3 shows an example of the integration of an arrangement according to FIG.
- Fig. 4 shows an embodiment variant of the multi-shell
- Lamp arrangement in which the retroreflector arranged within the innermost housing shell is adjustable from the outside.
- FIG. 5 shows a variant of the lamp arrangement according to FIG.
- FIG. 7 shows a further embodiment variant of the lamp arrangement according to FIG. 4.
- Fig. 8 shows a multi-shell in the partial figures 8a) and 8b)
- FIG. 9 shows schematically how cooling by cooling air flows can be provided in a lamp arrangement of the type in FIG. 8.
- FIG. 10 shows a more concrete example of a lamp arrangement according to the invention, in which the various aspects of the invention, as explained with reference to FIGS. 1 to 9, are used.
- Fig. 1 1 shows in the sub-figures 1 1 a) to 1 1 d) individual components of the
- the lamp arrangement 10 which as a whole can also be referred to as a "lamp" has an inner housing shell or an inner housing shell 12 and an outer housing shell or an outer housing shell 14.
- the inner housing shell 12 surrounds a housing interior 16 in which the actual lamp, that is to say the illuminant, of the lamp arrangement is arranged.
- the actual lamp that is to say the illuminant
- it is an arc lamp 18, shown in section, which contains a glass bulb and electrodes contained therein and a medium which is to be illuminated by electrical means.
- the inner housing shell 12 delimits an inner insulation layer 20, which preferably fills the entire interior 16 of the housing. Between the two housing shells 12 and 14, an intermediate space 22 is formed, which is preferably completely filled with a further insulation layer 24.
- the housing shells 12 and 14 each hold optics 26 and 28, respectively, which form a light exit.
- the optics 26 and 28 are preferably collecting optics. However, it can also be used instead of optics 26 and 28 to provide simple "windows". A useful photon current, which emanates from the hot plasma of the arc lamp, is guided to the outside through the optics 26 and 28 or the window or windows.
- the insulation layer can be formed by an insulating medium or also by a vacuum region or vacuum region.
- the respective insulation layer is preferably formed by a cooling fluid flow, in particular cooling air flow, which is preferably actively guided through the housing interior 16 or the housing interspace 22.
- the dual-shell or multi-shell arrangement of the lamp arrangement offers the advantage that a comparatively small, non-turbulent cooling air flow can be conducted through the housing interior 16, which contains the arc lamp 18, so that target operating conditions for the lamp, in particular a target temperature range , around 600 to 800 ° C, can be maintained, preferably without avoiding any severe temperature fluctuations.
- a significantly stronger cooling fluid flow in particular a cooling air flow, can be passed through the housing interspace 22 or possibly through a plurality of nested housing interspaces in order to achieve a strong cooling and thus a sharp drop in temperature from the inner housing shell to the outer housing shell.
- At least one further housing shell and accordingly at least one further housing interspace can be provided in an analogous manner and accordingly an even greater temperature gradient can be achieved from the inside to the outside.
- the design of the lamp housing with several housing shells thus makes it possible, on the one hand, to ensure optimal operating conditions for the lamp, in particular an arc lamp, and on the other hand to optimally isolate the heat loss from the outside or to dissipate it selectively and with high efficiency, without this influencing the operating conditions for the lamp become.
- housing shells can be spherical shells or cylindrical shells (for example circular cylinder shells), or - in deviation from the illustration in FIG. 1 - also completely differently shaped shells.
- Conventional lamps including arc lamps, emit photons more or less evenly in several spatial directions.
- An arc lamp emits photons evenly in all spatial directions perpendicular to the arc.
- it is expedient in addition to a part of the photon flow which is directly collected by means of suitable collecting optics 26, and a part which propagates in the opposite direction
- a suitable mirror arrangement for example by means of a retroreflector 40 in the direction of the lamp 18, in particular the arc 19 and thus also to be used by the collecting optics 26.
- FIG. 3 shows the arrangement of FIG. 2 integrated in a lamp arrangement 10 corresponding to FIG. 1.
- the housing interior 16, the arc lamp 18 and the retroreflector 40 are arranged and are surrounded by the first or inner housing shell (which can also be referred to as a jacket).
- Optimal conditions for the lamp 18 are set within these housing shells, in particular by setting, preferably regulating, a target temperature by means of an air flow guided through the interior 16.
- the first housing shell 12 is thus already at a cooler temperature level than the glass bulb or the burner glass of the arc lamp.
- a collection optics or part of the collection optics or simply a "window" can be installed in the first housing shell 12 in order to lead the desired photon current to the outside in accordance with the optical requirements.
- first housing shell 12 and the second, outer housing shell 14 also referred to as a jacket
- the second insulation layer 24 within the intermediate space 22.
- the purpose of this layer is to achieve a temperature drop as large as possible between the innermost zone and the outer region 30, which is preferably accomplished by a comparatively powerful cooling air flow.
- a different medium or a vacuum must be pointed out.
- a suitable optical element 28, possibly part of the collecting optics, is also inserted in the second housing shell 14 in order to guide the photon current to the outside. If the insulation layer 24 cannot generate a sufficient temperature drop (not a sufficient temperature gradient), further housing shells can be provided which extend analogously around the housing shell 14.
- the arrangement according to FIG. 1 and correspondingly according to FIG. 3 ensures that a thermal equilibrium is established very quickly after the lamp is switched on and that this thermal equilibrium is maintained without disturbing or harmful fluctuations, at least when the lamp arrangement is operated as intended.
- Components that are required in the context of a particular application, such as optics or optics, actuators and electronics, are preferably arranged or installed outside the outer or outermost housing shell.
- the temperature on the outer surface 32 or in the outer space 30 is only slightly higher than the ambient temperature in the wider environment, for example only a temperature increase of about 10 ° C above this ambient temperature. This ensures smooth operation of the various components (optics or optics, actuators, electronics). Furthermore, it is not necessary to pass a cooling air flow through this outside area for cooling. The outside space can thus be kept dust-free without any effort for air filtering and the components and elements used accordingly do not collect dust.
- a retroreflector generally a reflection arrangement, which increases the light yield, in the vicinity of the lamp, in particular an arc lamp, in accordance with the example of FIG. 3 in the interior 16 could be opposed to the fact that an adjustment option from the outside would generally be necessary.
- Such an adjustment option by mechanical means appears problematic with regard to ensuring adequate cooling or insulation, especially in the case of the multi-stage or multi-shell design of the lamp housing.
- a defined adjustment of the retroreflector with regard to a distance from the lamp 18 (Z-adjustment) and in the sense of a pivoting in two degrees of freedom of freedom is made possible by the adjustment mechanism 40 shown in FIG. 4 in relation to a lamp arrangement 10 corresponding to FIG. 3.
- a spherical segment 42 is arranged on the outside of the outer housing shell 14, which has a radius R with respect to a center located at least in a Z position on the optical surface of the retroreflector 40.
- the spherical segment 42 has an annular spherical segment surface 44 on which a slide-like actuator 46 with an annular edge 48 rests.
- a rod-shaped slide 50 guided through a passage of the actuating member or slide 46 carries the retroreflector 40 at an inner end. By moving the slide 50 in the Z direction defined by a slide 46 passage (double arrow Z in FIG. 4), the distance can be increased of the retroreflector 40 can be adjusted by the arc lamp 18.
- the retroreflector 40 can moreover be pivoted in two mutually independent degrees of freedom around the center point defining the radius R, which can also be designated as a pivot point.
- This pivot point lies on the optical surface of the retroreflector 40, preferably in exactly one Z position of the slide 50.
- the adjustment mechanism 40 enables the retroreflector 40 (generally the reflector arrangement 40) to be pivoted in all angular directions.
- a corresponding adjustment mechanism 40 or cardanic mounting or suspension of the retroreflector 40 can also be used if the interior 16 is to be strongly shielded or even sealed from the interspace 22 and the interspace 22 from the exterior 30. In the case of the embodiment of FIG.
- the shells 14 and 12 and the ball segment 42 are designed with bushings for the sliding member 40, which have a certain flow connection between the interior 16 and the intermediate space 22 and between the intermediate space 22 and one of the spherical segment 42 and allow the slider 46 limited space 52.
- the intermediate space 52 is shielded from the outer space 30 only by the engagement of the ring edge 48 and the spherical segment surface 44.
- a first seal 60 acts between the slide member 50 and the slide 46.
- a second seal 62 acts between the carriage 46 and the ball segment surface 44.
- the inner housing shell 12 is also designed with a further spherical segment 64, which has a spherical segment inner surface 66.
- a third seal 68 is effective between a ring edge of the retroreflector 40 and the spherical segment inner surface 66. The adjustment of the retroreflector 40 in the Z direction, which is generally only very small in practice, by means of the slider 50 is compensated for by the flexibility of the seal 68 without any leakage occurring.
- Deviations from an exact centricity of the different spherical surfaces can thus be easily compensated for by elastic components, here the seals. 5, the retroreflector 40 can thus be tilted in two angular directions about two mutually orthogonal pivot axes and, moreover, the retroreflector 40 can be adjusted in the Z direction without leaks occurring. 5 comes in Consider if you want to provide media other than air, such as vacuum, as the insulation layer or layers.
- the lamp 18 can also be correspondingly adjustable. Furthermore, it could also be considered to provide only an adjustability in the Z direction, but no pivotability.
- other types of adjustment of the retroreflector can also be provided, for example in a lateral direction.
- a corresponding surface can be provided on which an actuating element can be displaced, the positions and orientations of the actuating element resulting from the displacing of the actuating element by means of a connecting component, in the examples of FIG. 5 the slider 50, on the reflector arrangement, in the present case, the retroreflector 40 is transmitted.
- the surface 44 could be formed by the surface of a circular cylinder segment.
- FIG. 6 schematically shows a further embodiment variant of a lamp arrangement 10 with an outer housing shell 14 and an inner housing shell 12.
- the actuating member 46 referred to in connection with FIGS. 4 and 5, is designed with two ring edges 48a and 48b, which on the outer surface 32 of the outer housing shell 14 or on the outer surface 70 of the inner Rest the housing shell 12 and slide on the relevant outer surface in accordance with the double arrow W when the actuator 46 is angularly displaced.
- an angular adjustment of a reflector (not shown) held at the inner end of the slide 50 can be achieved in this way with a degree of freedom of swivel angle.
- the reflector can be pivoted in two degrees of angular freedom that are independent of one another.
- a corresponding displacement of the actuator 46 would also be symbolized by a double arrow perpendicular to the plane of the drawing.
- the cylindrical, for example, specifically, for example, spherical, cylindrical housing shells 12 and 14 can each be designed with a spherical segment section corresponding to the spherical segment section 42 or similar to the spherical segment section 64, on the outer spherical segment surface of which the engagement edges 48a and 48b then rest and slide when adjusting the actuator 46.
- FIG. 7 shows a modification of the exemplary embodiment of FIG. 4, in which the, for example, cylindrical housing shell 14 has a circular cylinder shoulder 80 which engages with a ring edge 82 on a spherical segment inner surface 84 of the slide 46.
- the retroreflector 40 can be pivoted in two angular degrees of freedom around the center of the spherical segment surface in accordance with the radius R and can also be adjusted linearly in the Z direction.
- a special holder, special suspension, of optical elements for example components holding the converging lenses
- a special mounting or suspension of the housing shells can be provided, as explained below with reference to FIG. 8.
- the structural components of the lamp arrangement and especially the housing shells expand after the lamp is switched on due to a thermal expansion.
- the relative positioning and orientation (coaxiality) of the optical elements held by the housing shells or generally holding elements, such as converging lenses such as the lenses 26 and 28, and thus the optical properties should change as little as possible.
- a suspension of the housing shells 12 and 14, which is designed as a cylindrical cylinder according to FIG. 8, is provided at the level of the optical axis C defined by the lenses 26 and 28, on the one hand a holder or a suspension of the outer housing shell 14 by a holding frame 80, that engages the outside of the housing shell 14 with a plurality of holding legs 82, and a holder in the sense of suspending the inner housing shell 12 by means of a plurality of holding legs 84 fixed inside the outer shell 14 and outside on the inner housing shell 12.
- the arc lamp 18 is 86 by means of an adjustment mechanism 86 adjustable in a height direction relative to a base of the lamp arrangement in such a way that the one that forms between the two electrodes of the glass bulb during operation Arc is cut straight from the optical axis C.
- a thermal expansion of the housing shells after the arc lamp is switched on changes the position of the optics 26 and 28 relative to the arc only slightly due to the suspension of the housing shells, and the positioning is preferably optimal when the operating temperature is reached.
- 90 denotes the arc occurring between electrodes 92 and 94 during operation.
- the holding legs 82, on which the outer housing shell 14 is suspended, and the holding legs 84, on which the inner housing shell 12 is suspended are arranged symmetrically with respect to the optical axis C, so that thermal expansion of the holding legs and the housing shells also changes as little as possible with respect to a positioning of the lenses 26 and 28 within the plane containing the optical axis C.
- the arrangement of the holding legs 84 has proven useful, as can be seen from FIG. 8b).
- the suspension of the housing shells illustrated in FIG. 8a) with respect to thermal expansion in the vertical axis direction H leads to the fact that the thermally induced movements with respect to the optical elements 26 and 28 are opposite and that they are comparatively little affected by this.
- FIG. 8b) also serves to illustrate that the lamp arrangement 10 can be arranged in a housing of a higher-level optical device, which can contain further optical components, electronics and the like.
- the housing of the higher-level device is represented in FIG. 8b) by the dashed box 100, which is, for example, dust-tight, so that the housing interior 30, which is to be regarded as the surroundings of the lamp arrangement 10, as dust-free usable space can serve.
- the interior 16 and the intermediate space 22 of the lamp arrangement 10 to be cooled by an air flow or air flows which do not pass through the interior 30.
- an air duct can be implemented, as is implemented schematically in FIG. 9.
- the outer space of the lamp arrangement 10 or the inner space 30 of the higher-level device surrounding the lamp arrangement is separated from the intermediate space 22 by the housing shell 14.
- a ventilator 102 ensures a flow through the housing interspace 22 and, with a smaller flow rate, the housing interior 16.
- partial flows branch off into the housing interior 16 from a cooling air flow led through the housing interspace 22 and there for a defined, preferably laminar cooling flow, which maintain the desired operating conditions for the arc lamp 18.
- suspension of the inner housing shell 12 within the plane C containing the optical axis is of particular importance.
- a corresponding suspension of the outer housing shell 14 can also be dispensed with under certain circumstances.
- the lamp arrangement can be integrated in a higher-level device.
- the lamp arrangement with its housing shells can also be flanged to an optical device, for example a microscope.
- the lamp 18 becomes adjustable relative to the housing shells and thus to the optical ones held by them Provide components. In this way it can be achieved that the optical axis C intersects the arc location in thermal equilibrium.
- the adjustment is such that the thermal expansions or contractions that occur just lead to the target position of the lamp 18 in relation to the optical components being achieved after the thermal equilibrium and the operating temperature have been established, so that the optical axis C intersects the arc location.
- cooling air flow can be controlled or regulated. For example, you can cool less after switching on the lamp to reach thermal equilibrium more quickly.
- the luminous flux of the lamp arrangement 10 can be used.
- the luminous flux emerging from the optics 26 and 28, generally from a light exit of the lamp arrangement can be used as free radiation luminous flux not bound to a medium, for example, it can be coupled into an illumination beam path of a microscope.
- Another possibility is to couple the emerging light into a light guide in order to supply an optical device, for example a remotely located one, for example a microscope, with illuminating light.
- the light emerging from the lamp arrangement can also be guided through optical filters or, for example, a filter wheel in order to carry out a wavelength selection. This is of interest, for example, for fluorescence microscopy applications.
- FIGS. 10 and 11 A specific embodiment of a lamp arrangement according to the invention is shown in FIGS. 10 and 11.
- the lamp arrangement has an outer housing shell 14 and an inner housing shell 12, the inner housing shell being suspended from the outer housing shell 14 by means of four holding legs 84 which are made in one piece with the inner housing shell 12 by means of screws connecting the outer housing shell 14 to the holding legs 84.
- the two housing shells each have a holder 110 or 112 for at least one optical element, for example a converging lens, which define an optical axis C.
- the suspension by means of the holding legs 84 and the connecting screws lies precisely in the plane containing the optical axis C, as explained with reference to FIG. 8.
- cooling by cooling fluid flows can take place through the interior 16, which contains the lamp, not shown, in particular an arc lamp, and through the intermediate space 22.
- a swivel body 46 serving as an actuator is inserted, which corresponds to the slide 46 of the examples in FIGS. 4 to 7.
- the swivel body 46 corresponds in particular to the slide 46 according to FIG. 7, since it has a spherical segment ring surface 84 which is in engagement with a ring edge 82 on a circular cylinder shoulder 80 of the outer housing shell 14.
- the engagement between the ring cylinder extension 80 and the swivel body 46 can be maintained, for example, by these spring elements which prestress one another, as indicated by dashed lines in FIG. 10.
- a pivoting of the swivel body 46 about a pivot point, which is given by the center point or radius of the spherical segment ring surface 84, is possible in two degrees of freedom and can be done, for example, by means of two actuators acting orthogonally on the swivel body 46, for example adjusting screws.
- a corresponding Adjusting screw is indicated by dashed lines in Fig. 10 and designated 124.
- a mirror holder 50 designed as a sliding member is inserted, which by means of an adjusting screw in the Z-
- This Z direction is adjustable relative to the pivot body 46. This Z direction corresponds exactly or approximately to the direction of the optical axis C.
- an operating housing 128 can be placed on the outside of the outer housing shell 14 (cf. FIG. 11 d), which surrounds the swivel body 46 and two
- Lamp arrangement 10 arranged in a housing of a higher-level device, the adjusting screws 126, 130 and 132 can also be connected by means of a flexible actuating member to a respective control knob or the like which is accessible from the outside.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07015638A EP1857736B1 (de) | 2003-03-20 | 2004-03-19 | Lampenanordnung |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10312474 | 2003-03-20 | ||
DE10312474A DE10312474A1 (de) | 2003-03-20 | 2003-03-20 | Lampenanordnung |
PCT/EP2004/002901 WO2004083721A1 (de) | 2003-03-20 | 2004-03-19 | Lampenanordnung |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07015638A Division EP1857736B1 (de) | 2003-03-20 | 2004-03-19 | Lampenanordnung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1604145A1 true EP1604145A1 (de) | 2005-12-14 |
EP1604145B1 EP1604145B1 (de) | 2007-11-21 |
Family
ID=32921021
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04721876A Expired - Fee Related EP1604145B1 (de) | 2003-03-20 | 2004-03-19 | Lampenanordnung |
EP07015638A Expired - Fee Related EP1857736B1 (de) | 2003-03-20 | 2004-03-19 | Lampenanordnung |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07015638A Expired - Fee Related EP1857736B1 (de) | 2003-03-20 | 2004-03-19 | Lampenanordnung |
Country Status (3)
Country | Link |
---|---|
EP (2) | EP1604145B1 (de) |
DE (3) | DE10312474A1 (de) |
WO (1) | WO2004083721A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2937403B1 (fr) * | 2008-10-17 | 2013-05-03 | Rve Technologie | Projecteur d'eclairage a dispositif d'evacuation d'energie |
DE102016013512A1 (de) * | 2016-04-18 | 2017-11-09 | Kastriot Merlaku | Beleuchtungs-System für Kameras aller Art oder für Mobiltelefone mit Kamera |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1970078U (de) * | 1967-05-02 | 1967-10-12 | Karl Storz | Lichtprojektor mit kuehleinrichtung. |
DE1805750A1 (de) * | 1968-10-29 | 1970-06-04 | Smw Sueddeutsche Metallwerke G | Bestrahlungsanlage mit mindestens einer Ultraviolett-Quecksilber-Hochdrucklampe |
US4546420A (en) * | 1984-05-23 | 1985-10-08 | Wheeler Industries, Ltd. | Air cooled light fixture with baffled flow through a filter array |
US4729078A (en) * | 1987-04-27 | 1988-03-01 | Maer Skegin | Extruded lamp housings |
JPH0743540B2 (ja) * | 1989-06-21 | 1995-05-15 | 株式会社オーク製作所 | 光源装置 |
DE9004495U1 (de) * | 1990-04-20 | 1990-06-21 | Norka Norddeutsche Kunststoff- Und Elektro-Gesellschaft Staecker & Co Mbh, 2817 Doerverden, De | |
DE9007641U1 (de) * | 1990-04-20 | 1993-07-15 | Norka Norddeutsche Kunststoff- Und Elektro-Gesellschaft Staecker & Co Mbh, 2817 Doerverden, De | |
US5091835A (en) * | 1991-02-25 | 1992-02-25 | Leonetti Company | High intensity lamp with improved air flow ventilation |
US5172975A (en) * | 1992-04-27 | 1992-12-22 | Mole-Richardson Co. | Light assembly with ventilated housing |
JPH06267512A (ja) * | 1993-03-10 | 1994-09-22 | Iwasaki Electric Co Ltd | 高出力形紫外線照射用光源 |
DE19509480A1 (de) * | 1995-03-16 | 1996-09-19 | Ansorg Gmbh | Leuchte |
DE19715388A1 (de) * | 1997-04-14 | 1998-10-15 | Zeiss Carl Jena Gmbh | Beleuchtungssystem |
US6621199B1 (en) * | 2000-01-21 | 2003-09-16 | Vortek Industries Ltd. | High intensity electromagnetic radiation apparatus and method |
TW479152B (en) * | 2001-02-14 | 2002-03-11 | Acer Peripherals Inc | High thermal diffusion efficiency light device |
JP4314552B2 (ja) * | 2001-02-14 | 2009-08-19 | 株式会社日立製作所 | プロジェクタ用ランプと液晶プロジェクタ |
-
2003
- 2003-03-20 DE DE10312474A patent/DE10312474A1/de not_active Withdrawn
-
2004
- 2004-03-19 WO PCT/EP2004/002901 patent/WO2004083721A1/de active IP Right Grant
- 2004-03-19 EP EP04721876A patent/EP1604145B1/de not_active Expired - Fee Related
- 2004-03-19 DE DE502004008560T patent/DE502004008560D1/de not_active Expired - Lifetime
- 2004-03-19 EP EP07015638A patent/EP1857736B1/de not_active Expired - Fee Related
- 2004-03-19 DE DE502004005558T patent/DE502004005558D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2004083721A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2004083721A1 (de) | 2004-09-30 |
EP1604145B1 (de) | 2007-11-21 |
EP1857736A1 (de) | 2007-11-21 |
DE502004008560D1 (de) | 2009-01-08 |
DE10312474A1 (de) | 2004-09-30 |
DE502004005558D1 (de) | 2008-01-03 |
EP1857736B1 (de) | 2008-11-26 |
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