WO2022258091A1 - Kompakte und geschlossene vorrichtung zur beleuchtung lichtoptischer systeme mittels kreisförmig bewegter led und inkludiertem linsensystem - Google Patents
Kompakte und geschlossene vorrichtung zur beleuchtung lichtoptischer systeme mittels kreisförmig bewegter led und inkludiertem linsensystem Download PDFInfo
- Publication number
- WO2022258091A1 WO2022258091A1 PCT/DE2022/000059 DE2022000059W WO2022258091A1 WO 2022258091 A1 WO2022258091 A1 WO 2022258091A1 DE 2022000059 W DE2022000059 W DE 2022000059W WO 2022258091 A1 WO2022258091 A1 WO 2022258091A1
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- WO
- WIPO (PCT)
- Prior art keywords
- led
- leds
- wheel body
- optical systems
- lens
- Prior art date
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- 230000003287 optical effect Effects 0.000 claims abstract description 35
- 238000010168 coupling process Methods 0.000 claims description 39
- 238000005859 coupling reaction Methods 0.000 claims description 39
- 230000008878 coupling Effects 0.000 claims description 36
- 230000005855 radiation Effects 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 16
- 238000007493 shaping process Methods 0.000 claims description 12
- 230000000295 complement effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000005286 illumination Methods 0.000 abstract description 17
- 238000009434 installation Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 241001583810 Colibri Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/007—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light
- G02B26/008—Optical devices or arrangements for the control of light using movable or deformable optical elements the movable or deformable optical element controlling the colour, i.e. a spectral characteristic, of the light in the form of devices for effecting sequential colour changes, e.g. colour wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S10/00—Lighting devices or systems producing a varying lighting effect
- F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
- F21S10/026—Lighting devices or systems producing a varying lighting effect changing colors by movement of parts, e.g. by movement of reflectors or light sources
Definitions
- the invention relates to a device for illuminating light-optical systems for observation, the recording of images or films in these systems.
- the LED has already found its way into many areas of optics and lithography due to its positive properties in terms of the quality and quantity of the radiation and in relation to the geometric size and its thermal behavior. For example, laser technology applications are increasingly being replaced by LEDs in order to achieve significant commercial effects.
- a well-known solution for controlling the light with LEDs according to the state of the art is the Colibri lighting system from Zeiss.
- the LEDs of various wavelengths are permanently installed and the light is reflected via mirror systems in a lens system for beam shaping such as collimation is controlled, from where it is coupled into an optical system for illuminating the optical system.
- optical systems are microscopes of all kinds, camera systems in the Medical technology or property control or analysis technology based on the evaluation of scans with different wavelengths of light.
- the LEDs are not moved, and the light from the LEDs is guided via mirror systems to the lenses at the light entry point of the lens system.
- the LEDs are switched on and off and the mirrors are arranged in such a way that the light is reflected or transmitted with as little loss as possible, depending on the wavelength of the respective LED.
- a decisive criterion is the mirror, which must fulfill the properties with regard to low-loss reflection or transmission as optimally as possible.
- the losses are very high due to the single or multiple reflection and it is not possible to bring the light beam loss-free to the first lens of the lens system for beam shaping and coupling into the optical system.
- the special application determines the illumination apertures and energy content at the observation point, whereby it is always important to illuminate the image plane in the observation field as evenly and homogeneously as possible, i.e. to generate a homogeneous illuminated field.
- long beam paths or a large number of lenses, as in the existing systems in the prior art, are a hindrance and lead to losses and inhomogeneous luminous fields.
- US 020050180161 A1 discloses an illumination device for an image projection device for illuminating a section to be illuminated with light from a light source consisting of a number of LEDs.
- the plurality of LEDs are arranged on a planar portion of a rotatable base approximately equidistant from the axis of rotation.
- the lighting device further includes a driver circuit for driving the LEDs, a condensing optical system that condenses emitted light from the LED as driven by the driver circuit onto the portion to be illuminated, a light control element for changing a light path of the light from the LEDs to illuminate the portion to be illuminated and/or for moving the LEDs, a movable portion that moves the light control element in a predetermined period, and a light selection controller that controls the movable portion and/or a driver circuit to select the light for illuminating the portion to be illuminated from the light of the plurality Select LEDs to create a colored projection image.
- a driver circuit for driving the LEDs
- a condensing optical system that condenses emitted light from the LED as driven by the driver circuit onto the portion to be illuminated
- a light control element for changing a light path of the light from the LEDs to illuminate the portion to be illuminated and/or for moving the LEDs
- a movable portion that moves the light control element in a pre
- Periodically controlled wheel bodies equipped with LEDs for the integration and projection of a color image are also known from US 020070052938 A1, KR 10 0 777 907 B1,
- US 4 809 062 A describes a device for image scanning applications called a color wheel, which is a passive device with different color filters.
- a wheel body equipped with LEDs is not disclosed.
- a device for illuminating optical systems by means of LEDs which comprises a plurality of LEDs which differ in terms of the wavelength of the emitted radiation, the LEDs being held in an LED holder.
- the device also includes a lens system with at least one lens for beam shaping, e.g. collimation, collection, scattering and/or collinear guidance, of the radiation emitted by at least one of the LEDs and coupling into an optical system for illuminating the optical system, the lens system being in one Lens housing is supported, which defines a central axis of the lenses and a coupling opening for the radiation from the LEDs.
- an arrangement according to the invention for guiding the radiation emitted by an LED to the coupling opening of the lens housing comprises a wheel body which is rotatably mounted on a drive axle about its central axis and has a front side facing the lens housing perpendicular to the central axis, on which a plurality of LED Recordings with at least one assigned LED are held along a circular path, a rear plate which is attached to the rear of the LED wheel body and via which the wheel body is rotatably mounted, an electrical rotary bushing for leading through connection lines for controlling and power supply of the LEDs, a Motor coupled to the drive axle to drive the wheel body in rotation.
- the drive axis of the wheel body is parallel to the central axis of the at least one lens in the lens housing and is mounted laterally offset from it in such a way that rotation of the wheel body positions a selected one of the LEDs mounted on the front side at the coupling opening of the lens system or moves it past it can be, so that the radiation emitted by the respective LED is coupled into the lens system.
- directional designations such as front, rear, front or rear are to be understood in relation to the emission direction of the LEDs, with front side meaning the side directed in the direction of emission and rear meaning the opposite side thereto.
- an LED is understood to mean a light-emitting diode in the form of a housed component, which usually has electrical connection contacts and a cooling surface for making contact with a heat sink and is also referred to as an LED chip.
- LEDs can also be used which emit by means of markers, eg for fluorescence applications.
- Exemplary wavelengths are LB - Blue 470, LT - true green 528, LD - deep blue 455, LR - red 625, LA - amber 617, LY - yellow 590.
- the movement of the light sources takes place in a circular path within a closed arrangement. This makes it possible to bring the LEDs very close to the first lens of the beam path without loss.
- the lens housing for collecting, scattering and/or collinear guidance of the LED radiation is already integrated in the geometric system.
- the lens system can include a plurality of lenses and spacer rings for beam shaping of the radiation from the LEDs coupled in via the wheel body.
- the integration of the beam-shaping lens(es) in the lighting device and the movement of the light points directly to the transfer point to the beam-shaping optics achieve a high level of illumination homogeneity, low losses, flexibility and compact geometry.
- the wheel body is used to hold a plurality of LED recordings along a circular path.
- the number of LED mounts can vary and is limited by their respective size and the diameter of the wheel body.
- Each LED mount holds at least one associated LED.
- a particularly cost-effective implementation is possible if all LEDs of different wavelengths are structurally identical. However, this is not absolutely necessary and often not possible.
- the multiple LED recordings can therefore also be designed specifically adapted to the mounted LEDs, so that on the Wheel body LEDs of different types can be integrated. These can be switched selectively via an external control.
- the wheel body is firmly connected to the front and rear plates, with the driven rotary axis driving the front plate and the wheel body directly.
- the energy transmission devices comprise an electrical rotary feedthrough for leading through connecting lines for controlling and powering the LEDs.
- energy can be transmitted via grinding plates or the like.
- the wheel body has a plurality of recesses which are open towards the front and which are arranged along a circular path, and the LED receptacles have a cross-sectional shape complementary to the recesses and are each accommodated with a precise fit in one of the recesses.
- at least 2 bores or other linear guide geometries are formed as recesses on a circular path.
- the recesses can have a circular or polygonal cross-sectional shape.
- the number of guide geometries, ie the recesses for the LED mounts can vary and is limited by the diameter of the wheel body.
- the wheel body can be equipped with an exact division with the guide geometries according to the LED mount, in order to ensure an exact positioning of the light spot in front of the coupling opening of the lens housing.
- the various LEDs In order to illuminate the image plane in the observation field homogeneously with high light intensity, the various LEDs must be set precisely in the direction of the beam path, ie the distance between the light exit surface of the LED and the first lens of the lens system must be set individually.
- the several LED holders are accommodated in a respective recess of the wheel body in an axially displaceable manner and are prestressed in the direction of the light emitted by the LED by means of a spring arranged on the rear side and supported on the rear plate.
- the position of the LED holder in the direction of light emission and perpendicular to the front side of the wheel body, ie in the direction of the surface normal of the front side, can be adjusted by means of an adjusting screw which passes through the rear plate.
- the adjusting screw can be anchored, for example, in the back of the LED holder and the spring force counteract.
- the combination of LED holder, spring and adjusting screw enables the LED to be adjusted in the direction of the beam path and thus an exact individual adjustment of the distance between the light exit surface of the LED mounted on an LED holder and the coupling opening of the lens housing and thus to the beam-shaping lens system for LEDs of different types Wavelengths and types possible.
- the LED holder is designed as a heat sink for the LED.
- the LED mount can be made of a material with good thermal conductivity, such as an aluminum alloy or copper, so that the heat generated in the LED can be dissipated via the LED mount to the rear and further via the wheel body.
- the LED is only in contact with the heat sink with its cooling surface.
- the electrical contacts of the LED remain free and the electrical contacting of the LEDs is separate from the heat sink.
- the inventors have found that, for particularly good heat dissipation, it is advantageous to contact the LED directly with the heat sink, contrary to the usual form of contact with a solder pad, i.e. to ensure direct surface contact between the heat sink and the cooling surface of the LED.
- LEDs are known in a large number of designs which, in addition to the emission wavelength, also differ from one another in the geometric arrangement of the connection contacts and the cooling surface.
- the LED holder is designed in each case to interact with a position securing plate in order to fix the LED in its position in 3-dimensional space relative to the wheel body.
- the position securing plate has a geometric shape that is complementary to the LED mount and the LED, so that when it is placed on the LED, the LED is fixed in one degree of freedom by the LED mount and in a second and third degree of freedom by the Position securing plate is fixed and contacting the cooling surface of the LED with the LED holder acting as a heat sink is positively secured.
- the individual LED mounts in the LED wheel body can therefore also have different geometries in order to follow the principles set out above in their basic conception, i.e. to leave the electrical contacts of the LED free and to ensure the position of the LED is secured, optionally in combination with a complementary shaped position locking plate.
- the position securing plate can additionally be connected in a non-positive manner to the LED receptacle, for example by means of a press fit and/or an adhesive connection.
- a cover plate is placed on the front side of the wheel body, the cover plate having through-openings, each aligned with the LED receptacles, for the passage of the radiation from the LEDs.
- the purpose of the cover plate is to limit the size of the exit beam of the LED through the passage openings.
- the cover plate is shaped in such a way that it cooperates with the lens housing to provide a light trap.
- the cover plate can have structures on the side facing away from the LED receptacles for sealing off the coupling opening of the lens housing from extraneous light.
- the structures for sealing off the coupling opening from extraneous light comprise annular ribs which are formed concentrically to the drive axis radially inwards and outwards of the through-openings, with the radially inner rib engaging in a groove which is in the lens housing on a side next to the coupling opening is formed, and the outer rib overlaps an outer shoulder of the lens housing on the opposite side of the coupling opening.
- the lighting device according to the invention guarantees high lighting homogeneity, low losses in the beam path, and high flexibility with regard to the LEDs that can be used at the same time compact geometry.
- a lighting device with extremely advantageous compact installation dimensions can thus be provided.
- a particularly preferred embodiment of the lighting device has external dimensions with a wheel diameter of 47 mm and an overall system length of 120 mm.
- FIG. 1 shows a perspective view of a preferred embodiment of the device for illuminating optical systems using LEDs according to the invention
- FIG. 2 shows a longitudinal section of the device for illuminating optical systems using LEDs according to the invention, the section plane running along the central axis of the lens housing,
- FIG. 3 shows an enlarged detailed view of the section labeled "A" in FIG. 2,
- Embodiment of the device for illuminating optical systems using LEDs from Fig. 1 Embodiment of the device for illuminating optical systems using LEDs from Fig. 1,
- FIG. 5 shows a perspective view of a detail from FIG. 4, in which the LED holder and the position securing plate for the LED are shown, viewed at an angle to the front side of the wheel body,
- FIG. 6 shows a further perspective view of the detail from FIG. 5 with a viewing direction obliquely towards the coupling opening of the lens housing.
- FIGs. 1, 2 and 4 which illustrate a preferred embodiment of the device for illuminating optical systems by means of LEDs according to the invention, in an external perspective view, a longitudinal sectional view and an exploded perspective view.
- the illumination device is intended for the sequential illumination of an optical system with light of different wavelengths and comprises a plurality of LEDs 11 as the illumination source, which differ in terms of the wavelength of the emitted radiation.
- a lens system for shaping the beam of the radiation emitted by the LEDs 11 and coupling it into an optical system is integrated into the lighting device System for lighting the optical system.
- the Unsen system is held in a lens housing 4 which defines a central axis 43 of the lenses and a coupling opening 45 for the radiation from the LEDs. From the lens housing, the illumination beam is coupled into the optical system to be illuminated via the coupling-out opening 49 shown in FIG.
- the lighting device further includes a mechanism for selectively and sequentially moving the LEDs in front of the coupling aperture 45 and selectively coupling light of different wavelengths into the lens system.
- This guide mechanism comprises a wheel body 2, which is rotatably mounted on a drive axle 6 (Fig. 2) about its central axis, a plate 8 on the back of the LED wheel body 2, via which the wheel body 2 is rotatably mounted, and a motor 24.
- the plurality of LEDs are mounted along a circular path at an angular distance from one another.
- An external controller controls the motor 24, which rotates the wheel body 2 via the drive axle 6.
- the drive axle 6 of the wheel body 2 is mounted parallel to the center axis 43 of the lens system in the lens housing 4 and laterally offset from it.
- the lighting device includes sensor means (not shown) for determining the position and controlling the rotation of the wheel body via the external control unit.
- the sensor means described can take various forms. The variance can vary depending on the application and position accuracy. It could be simple inductive sensors, but also an incremental angular germ system with a very high resolution of the elements.
- the wheel body 2 has a plurality of recesses 21 for holding the LEDs, which are open towards the front and which are arranged along a circular path, with only one of these recesses 21 being shown in Fig 4 is denoted.
- LED receptacles 1 with a complementary cross-sectional shape, each carrying an LED, are accommodated in the recesses.
- the recesses 21 and the LED receptacles 1 each have a circular cross section, but polygonal or oval cross sections are also possible.
- the LED holder 1 is arranged in the respective recess in an axially displaceable manner.
- a spring 26 (FIG. 2) is arranged on the back of the LED holder, which is supported on the rear plate 8 and by which the LED holder 1 is pretensioned towards the front side of the wheel body.
- the position of the LED mount 1 in the direction of light emission and thus the distance between the light exit surface of the LED and the coupling opening 45 of the lens system can be adjusted using an adjusting screw (not shown) that extends through the rear plate 8 .
- the adjusting screw can, for example, be anchored in the back of the LED mount and can hold the LED mount against the spring force. In this way, an exact adjustment of the LED in the direction of the beam path in relation to the lens system is possible. This makes it easy to adjust LEDs of different wavelengths and types relative to the lens system.
- the lens system comprises a lens package which best meets the required application and depends on the wavelengths, the distance to the observation point and the size of the area to be illuminated - lens 41. These are in their position in the lens housing 4 to the front and rear of the Housing set out by a spacer ring 47 and thus flexible in distance to the LED.
- the beam path of the light is guided through the in-coupling opening (45) in such a way that a light beam that is as collimated as possible can be emitted at a defined emission angle through the out-coupling opening 49, see FIG. 1, in the direction of the light-optical system to be illuminated.
- the LED holder 1 in addition to holding the LED(s), also fulfills the function of a heat sink, ie a heat sink for the respective LED(s).
- a heat sink for the respective LED(s).
- a 3-dimensional Cartesian coordinate system with x, y and z directions is given, with the x direction being parallel to the central axis 43 of the lens system and in the direction of the light exit of the LEDs.
- the LED in the specific exemplary embodiment has a central cooling surface on its rear side, which extends as a strip from edge to edge of the LED in the z-direction. Electrical connection contacts are provided on both sides of the cooling surface, which also extend as strips from edge to edge of the LED in the z-direction.
- the LED is brought into contact with the heat sink, ie the LED holder 1, only with its cooling surface, so that the electrical contacts of the LED remain free and the electrical contacting of the LEDs can be made separately from the heat sink.
- the front of the LED holder 1 is designed with a special geometric shape that is matched to the arrangement of the cooling surface and electrical contacts of the LED, depending on the design of the LED.
- the LED holder 1 is designed with a web which is embedded in the x-direction and whose width in the y-direction corresponds approximately to the width of the cooling surface.
- the extent of the depression in the z-direction is matched to the dimensions of the LED, so that the LED is accommodated in the depression and the cooling surface of the LED thus rests on the base of the depression on the web.
- the width of the bridge must be smaller than the distance between the two electrical contacts on the right and left of the bridge so that the electrical contacts do not touch the heat sink and the electrical contact of the LED can be made separately from the heat sink.
- This design of the LED mount 1 fixes the LED in one degree of freedom, here specifically in the z direction.
- the LED holder 1 interacts with a position securing plate 9, which has a geometric shape complementary to the LED holder 1 or the LED, and so on is placed on the LED, that the LED is fixed in a second and third degree of freedom by the position securing plate 9 and thus the LED can be positioned exactly so that the luminous point of the LED lies exactly on the central axis of the LED holder 1 and also a contact the cooling surface of the LED is positively secured with the heat sink.
- the position securing plate 9 has a central through hole for the passage of the light emitted by the LED. Furthermore, the position securing plate 9 has a recess on its rear side, i.e. the side facing the LED 11, the width of which is dimensioned in the y-direction in such a way that the LED can be accommodated therein. Furthermore, an edge area of the position securing plate 9 is recessed and comes into contact with a complementarily shaped projection of the LED holder 1, i.e. the heat sink, where the contact surfaces can optionally also be glued.
- the LED Due to the fit of the LED on the heat sink in the z-direction and the fit of the LED on the position securing plate 9 in the y-direction, the LED is already positively held on the heat sink when the position securing plate 9 is placed on the heat sink and there is good contact between the cooling surface of the LED and the heat sink while leaving the electrical contacts free. Expressed more generally, without being restricted to the specific exemplary embodiment of FIGS.
- the LED mount 1 works together with a position securing plate 9 in order to fix the LED in its position in 3-dimensional space relative to the wheel body 2, the position securing plate 9 being a part of the LED mount 1 and the LED has a complementary geometric shape and is placed on the LED, so that the LED is fixed in one degree of freedom by the LED receptacle 1 and is fixed in a second and third degree of freedom by the position securing plate 9 and contacting of the cooling surface of the LED with the heat sink as a result it is positively secured that the diameter of the plate 9 forms a press fit with the recessed annular groove of part 1 and thus the LED is also pressed firmly against the web of part 1.
- a cover plate 3 is also placed on the front side of the wheel body 2.
- the cover plate 3 has a plurality of through openings 31, the number of which corresponds to the recesses 21 of the wheel body 2 and are each aligned with these and thus with the LED receptacles 1 and thus guarantee the passage of the light emitted by the LED.
- the Cover plate 3 has the task, on the one hand, of limiting the size of the light emission from the LED to the lens system.
- On the other hand on the side facing away from the LED receptacles 1, ie on the side facing the lens housing 4, ie its front side, it has structures for sealing off the coupling opening 45 of the lens housing 4 from extraneous light.
- FIG. 3 shows an enlarged section of the sectional view of the illumination system from FIG.
- the wheel body 2 is shown here in a rotated position in which an LED holder 1 with LED 11 is aligned with the coupling opening 45 of the lens housing 4.
- the cover plate 3 is placed on the wheel body.
- the cover plate 3 On the side facing the lens housing 4, the cover plate 3 has structures for sealing off the coupling opening of the lens housing 4 from extraneous light. More specifically, the cover plate 3 has two annular ribs 32, 33 which are formed concentrically with the drive shaft 6 radially inwards and outwards of the through holes 31.
- a groove 5 is formed in the lens housing 4 on one side next to the coupling opening 45 .
- the radially inner rib 32 engages in the groove 5 and is guided in it without contact when the wheel body 2 rotates.
- the outer rib 33 overlaps an outer shoulder of the lens housing 4 on the opposite side of the coupling opening and is guided past the latter without contact when the wheel body 2 rotates. This provides a light trap for ambient light, which is thus prevented from penetrating to the in-coupling opening 45 of the lens system. As a result, the wavelengths of the various LEDs can be kept exactly in their frequency range.
- an extremely compact and closed device for illuminating light-optical systems using LEDs with an integrated lens system in which the LED light can be guided very close to the lens system without loss by means of a rotary movement, so that high illumination homogeneity in the light-optical system to be illuminated and low loss is achieved with high flexibility with regard to the wavelengths at the same time.
- the costs can be reduced compared to the prior art and the manufacturing method can be simplified.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Astronomy & Astrophysics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Led Device Packages (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE112022002994.3T DE112022002994A5 (de) | 2021-06-10 | 2022-06-03 | Kompakte und geschlossene Vorrichtung zur Beleuchtung lichtoptischer Systeme mittels kreisförmig bewegter LED und inkludiertem Linsensystem |
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DE102021002972.0 | 2021-06-10 | ||
DE102021002972.0A DE102021002972B4 (de) | 2021-06-10 | 2021-06-10 | Kompakte und geschlossene Vorrichtung zur Beleuchtung lichtoptischer Systeme mittels kreisförmig bewegter LED und inkludiertem Linsensystem |
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US20070052938A1 (en) | 2005-09-02 | 2007-03-08 | Scott Lerner | Active color wheel |
KR100777907B1 (ko) | 2005-05-30 | 2007-11-20 | 엘지전자 주식회사 | 칼라 영상투사장치의 조명광학계 |
WO2020175937A1 (en) * | 2019-02-27 | 2020-09-03 | Seegene, Inc. | Light module |
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JP5194169B2 (ja) | 2008-03-26 | 2013-05-08 | エール大学 | 平行光ビームまたは収束光ビームのどちらかを選択的に提供する光学システム |
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2021
- 2021-06-10 DE DE102021002972.0A patent/DE102021002972B4/de active Active
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2022
- 2022-06-03 WO PCT/DE2022/000059 patent/WO2022258091A1/de active Application Filing
- 2022-06-03 DE DE112022002994.3T patent/DE112022002994A5/de active Pending
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US4809062A (en) | 1984-11-14 | 1989-02-28 | Microtek Lab., Inc. | Optical color line scanning and imaging device having a roller drive |
US6155687A (en) | 1999-07-16 | 2000-12-05 | Infocus Corporation | Light guide for use in a color wheel display synchronization apparatus and method |
US20050180161A1 (en) | 2002-05-24 | 2005-08-18 | Olympus Corporation | Illumination apparatus and image projection apparatus using the illumination apparatus |
KR100777907B1 (ko) | 2005-05-30 | 2007-11-20 | 엘지전자 주식회사 | 칼라 영상투사장치의 조명광학계 |
US20060279709A1 (en) | 2005-06-08 | 2006-12-14 | Olympus Corporation | Light source device and projection optical device |
US20070052938A1 (en) | 2005-09-02 | 2007-03-08 | Scott Lerner | Active color wheel |
WO2020175937A1 (en) * | 2019-02-27 | 2020-09-03 | Seegene, Inc. | Light module |
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DE102021002972B4 (de) | 2023-01-26 |
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DE102021002972A1 (de) | 2022-12-15 |
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