US20040206093A1 - Illumination device in a cryostat - Google Patents
Illumination device in a cryostat Download PDFInfo
- Publication number
- US20040206093A1 US20040206093A1 US10/824,211 US82421104A US2004206093A1 US 20040206093 A1 US20040206093 A1 US 20040206093A1 US 82421104 A US82421104 A US 82421104A US 2004206093 A1 US2004206093 A1 US 2004206093A1
- Authority
- US
- United States
- Prior art keywords
- cryostat
- illumination
- circuit arrangement
- chamber
- illumination module
- 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.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D27/00—Lighting arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/06—Devices for withdrawing samples in the solid state, e.g. by cutting providing a thin slice, e.g. microtome
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/42—Low-temperature sample treatment, e.g. cryofixation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/06—Devices for withdrawing samples in the solid state, e.g. by cutting providing a thin slice, e.g. microtome
- G01N2001/068—Illumination means
Definitions
- the invention concerns a cryostat having a cryostat chamber in which a microtome for cutting frozen specimens is arranged, and in particular an illumination device for the cryostat chamber.
- Cryostats of this kind are used in order to cut frozen specimens with a microtome for subsequent viewing with a microscope.
- the specimens to be cut are cooled to a specific predefined temperature, the temperatures generally being between ⁇ 10° C. and ⁇ 50° C.
- the microtomes are arranged in extensively encapsulated cryostat chambers, and the latter are appropriately cooled.
- cryostat chambers are illuminated with lamps. This has the disadvantage, however, that these light sources generate heat, thus jeopardizing the temperature invariability that is critical for cutting the specimen.
- an illumination device including at least one LED for illuminating the cryostat chamber.
- the illumination device comprises as the light source at least one LED, preferably a white-light LED.
- the LEDs can also be very effectively protected against water splashes because of their physical shape.
- multiple LEDs are grouped together into an illumination module, resulting in an increased luminance with a compact configuration. Furthermore, it is thus also very easy to protect the electrical contacts of the LEDs from moisture or water splashes.
- the illumination module comprises a housing having a plug connector for supplying power.
- the illumination module can be arranged replaceably, by way of the plug connector, in the cryostat chamber.
- Single or multiple illumination modules can thus be replaceably arranged, as needed, in prepared plug-in receptacles in the cryostat chamber.
- multiple illumination modules are electrically connected to a common power supply system.
- This power supply system is preferably arranged outside the cryostat chamber, so that not only minimized complexity but also reduced heat evolution is implemented here.
- a circuit arrangement is provided for switching single and/or multiple illumination modules on and off. Single regions inside the cryostat chamber can thus be illuminated depending on the application.
- the circuit arrangement additionally has the function of a dimmer for single and/or multiple illumination modules. This likewise makes possible individual illumination of the cryostat chamber
- a switch is arranged on the cryostat and is electrically connected to the circuit arrangement, the switch automatically switching and/or dimming single and/or multiple illumination modules upon opening and/or closing of the cryostat chamber.
- the result of this function is that the illuminating light inside the chamber is automatically controlled when the cover or panel is opened by an operator. It is thus possible, for example, always to switch to optimum illumination upon opening, and to switch off or dim single illumination modules upon closing. It seems advisable, for example, to illuminate only the sample holder and/or the cutting knife of the microtome when the cryostat chamber is closed.
- a water-splash protector is associated with at least one LED.
- the illumination module can be equipped with a seal for encapsulating the electrical LED contacts.
- FIG. 1 is a view of a cryostat formed in accordance with an embodiment of the present invention
- FIG. 2 is a section through an illumination module of the cryostat
- FIG. 3 is a plan view of the illumination module
- FIG. 4 is a plan view of the cryostat with a cryostat chamber.
- FIG. 1 is a view of cryostat 1 having a cryostat chamber 2 in which an illumination device 4 , having multiple illumination modules 6 , is arranged.
- Cryostat chamber 2 can be opened and closed by way of a movable cover 17 .
- Illumination modules 6 are electrically connected via leads 14 to a circuit arrangement 10 , and via lead 15 to a power supply system 9 .
- a switch 11 which detects the opening and closing of cover 17 of cryostat chamber 2 , is arranged on cryostat 1 .
- Switch 11 is likewise connected via a lead (not depicted) to the circuit arrangement 10 .
- Single illumination modules 6 can be switched and/or dimmed via circuit arrangement 10 .
- switch 11 By means of switch 11 , single and/or multiple illumination modules 6 can be automatically switched and/or dimmed when cover 17 or cryostat chamber 2 is opened or closed.
- FIG. 2 is a section through an illumination module 6 having a housing 7 and having single LEDs 5 that are arranged on a circuit board 13 .
- Circuit board 13 and the electrical contacts of LEDs 5 are sealed with respect to external influence by way of a water-splash protector 12 provided in the housing.
- FIG. 3 shows illumination module 6 in a plan view, with a plug connector 8 arranged on the side of housing 7 .
- illumination module 6 can be mounted in cryostat chamber 2 and simultaneously supplied with power.
- FIG. 4 is a plan view of cryostat chamber 2 with the centrally arranged microtome 3 and illumination modules 6 provided around microtome 3 . Uniform illumination of all regions inside cryostat 1 is achieved with this arrangement. Also provided in cryostat chamber 2 , in addition to microtome 3 , is a freezing bar 16 for rapid freezing of specimens and for storing multiple specimen holders. A separate illumination module 6 is arranged for illuminating freezing bar 16 .
Abstract
Description
- This application claims priority of the German patent application 103 18 026.5 filed Apr. 19, 2003 which is incorporated by reference herein.
- The invention concerns a cryostat having a cryostat chamber in which a microtome for cutting frozen specimens is arranged, and in particular an illumination device for the cryostat chamber.
- Cryostats of this kind are used in order to cut frozen specimens with a microtome for subsequent viewing with a microscope. The specimens to be cut are cooled to a specific predefined temperature, the temperatures generally being between −10° C. and −50° C. To ensure temperature invariability, the microtomes are arranged in extensively encapsulated cryostat chambers, and the latter are appropriately cooled.
- To ensure safe operation, the cryostat chambers are illuminated with lamps. This has the disadvantage, however, that these light sources generate heat, thus jeopardizing the temperature invariability that is critical for cutting the specimen.
- It has moreover been found that the light sources, whose dimensions are quite large, cannot be effectively cleaned.
- It is therefore the object of the present invention to improve the illumination of cryostat chambers so as to result in greater temperature invariability inside the chamber.
- This object is achieved, according to the present invention, by way of an illumination device including at least one LED for illuminating the cryostat chamber.
- The invention is characterized in that the illumination device comprises as the light source at least one LED, preferably a white-light LED. A compact configuration, very low thermal emission, and good cleaning and disinfection capability are achieved with the LED. In addition, the LEDs can also be very effectively protected against water splashes because of their physical shape.
- In an embodiment of the invention, multiple LEDs are grouped together into an illumination module, resulting in an increased luminance with a compact configuration. Furthermore, it is thus also very easy to protect the electrical contacts of the LEDs from moisture or water splashes.
- In a development of the invention, the illumination module comprises a housing having a plug connector for supplying power. The result of this is that the illumination module can be arranged replaceably, by way of the plug connector, in the cryostat chamber. Single or multiple illumination modules can thus be replaceably arranged, as needed, in prepared plug-in receptacles in the cryostat chamber.
- In a further embodiment of the invention, multiple illumination modules are electrically connected to a common power supply system. This power supply system is preferably arranged outside the cryostat chamber, so that not only minimized complexity but also reduced heat evolution is implemented here.
- In a development of the invention, a circuit arrangement is provided for switching single and/or multiple illumination modules on and off. Single regions inside the cryostat chamber can thus be illuminated depending on the application.
- In an advantageous development, the circuit arrangement additionally has the function of a dimmer for single and/or multiple illumination modules. This likewise makes possible individual illumination of the cryostat chamber
- In a development of the invention, a switch is arranged on the cryostat and is electrically connected to the circuit arrangement, the switch automatically switching and/or dimming single and/or multiple illumination modules upon opening and/or closing of the cryostat chamber. The result of this function is that the illuminating light inside the chamber is automatically controlled when the cover or panel is opened by an operator. It is thus possible, for example, always to switch to optimum illumination upon opening, and to switch off or dim single illumination modules upon closing. It seems advisable, for example, to illuminate only the sample holder and/or the cutting knife of the microtome when the cryostat chamber is closed.
- In a further embodiment of the invention, a water-splash protector is associated with at least one LED. Advantageously, the illumination module can be equipped with a seal for encapsulating the electrical LED contacts.
- The invention will be explained in more detail on the basis of an exemplary embodiment, referring to the schematic drawings in which:
- FIG. 1 is a view of a cryostat formed in accordance with an embodiment of the present invention;
- FIG. 2 is a section through an illumination module of the cryostat;
- FIG. 3 is a plan view of the illumination module; and
- FIG. 4 is a plan view of the cryostat with a cryostat chamber.
- FIG. 1 is a view of
cryostat 1 having acryostat chamber 2 in which anillumination device 4, havingmultiple illumination modules 6, is arranged. Cryostatchamber 2 can be opened and closed by way of amovable cover 17.Illumination modules 6 are electrically connected via leads 14 to acircuit arrangement 10, and vialead 15 to apower supply system 9. Aswitch 11, which detects the opening and closing ofcover 17 ofcryostat chamber 2, is arranged oncryostat 1.Switch 11 is likewise connected via a lead (not depicted) to thecircuit arrangement 10. -
Single illumination modules 6, or even all of them, can be switched and/or dimmed viacircuit arrangement 10. By means ofswitch 11, single and/ormultiple illumination modules 6 can be automatically switched and/or dimmed whencover 17 orcryostat chamber 2 is opened or closed. - FIG. 2 is a section through an
illumination module 6 having ahousing 7 and havingsingle LEDs 5 that are arranged on acircuit board 13.Circuit board 13 and the electrical contacts ofLEDs 5 are sealed with respect to external influence by way of a water-splash protector 12 provided in the housing. - FIG. 3 shows
illumination module 6 in a plan view, with aplug connector 8 arranged on the side ofhousing 7. By way ofplug connector 8,illumination module 6 can be mounted incryostat chamber 2 and simultaneously supplied with power. - FIG. 4 is a plan view of
cryostat chamber 2 with the centrally arrangedmicrotome 3 andillumination modules 6 provided aroundmicrotome 3. Uniform illumination of all regions insidecryostat 1 is achieved with this arrangement. Also provided incryostat chamber 2, in addition tomicrotome 3, is afreezing bar 16 for rapid freezing of specimens and for storing multiple specimen holders. Aseparate illumination module 6 is arranged forilluminating freezing bar 16. - PARTS LIST
- Cryostat
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Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10318026.5A DE10318026C5 (en) | 2003-04-19 | 2003-04-19 | Cryostat with lighting device |
DE10318026.5 | 2003-04-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20040206093A1 true US20040206093A1 (en) | 2004-10-21 |
Family
ID=32010540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/824,211 Abandoned US20040206093A1 (en) | 2003-04-19 | 2004-04-14 | Illumination device in a cryostat |
Country Status (5)
Country | Link |
---|---|
US (1) | US20040206093A1 (en) |
JP (1) | JP2004317515A (en) |
CN (1) | CN100498271C (en) |
DE (2) | DE20321622U1 (en) |
GB (1) | GB2400645B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070204734A1 (en) * | 2006-01-18 | 2007-09-06 | Tetsumasa Ito | Automatic sliced piece fabricating apparatus and automatic sliced piece sample fabricating apparatus |
US20110282247A1 (en) * | 2010-03-31 | 2011-11-17 | Helen Denise | Novel Ovulation Predictor Device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009061068B4 (en) * | 2009-04-17 | 2015-05-07 | Leica Biosystems Nussloch Gmbh | Method for producing microscopic thin sections of tissue samples |
DE102011002443B4 (en) * | 2011-01-04 | 2013-08-29 | Leica Biosystems Nussloch Gmbh | Cryostat with lighting device |
DE102012215859A1 (en) | 2012-09-06 | 2014-03-06 | Leica Biosystems Nussloch Gmbh | Processing device for processing tissue samples with a reader device for user identification units |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4979376A (en) * | 1988-10-10 | 1990-12-25 | Manfred Biehl | Microtomy device |
US5070935A (en) * | 1986-10-14 | 1991-12-10 | Hellmuth Sitte | Refrigerated chamber for obtaining thin slices at low temperature |
US5974811A (en) * | 1997-03-07 | 1999-11-02 | Carl-Zeiss-Stiftung Trading As Carl Zeiss | Suction device for cutting wastes in a cryostatic microtome |
US20020139124A1 (en) * | 2001-03-30 | 2002-10-03 | Palermo Henry William | Disinfection system and method of using same |
US6580309B2 (en) * | 2000-02-03 | 2003-06-17 | Koninklijke Philips Electronics N.V. | Supply assembly for a LED lighting module |
US6578979B2 (en) * | 2000-09-26 | 2003-06-17 | Lisa Lux Gmbh | Illumination body for refrigeration devices |
US6594075B1 (en) * | 1999-11-29 | 2003-07-15 | Olympus Optical Co., Ltd. | Microscope with electronic image sensor |
US20040032729A1 (en) * | 2002-06-26 | 2004-02-19 | Choi Daniel S. | Removable light |
US20060091827A1 (en) * | 2000-12-20 | 2006-05-04 | Gestion Proche Inc. | Lighting device |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1518792A (en) * | 1975-11-04 | 1978-07-26 | South London Elect Equip | Cryostats |
DE2906153C2 (en) * | 1979-02-17 | 1984-10-31 | C. Reichert Optische Werke Ag, Wien | Cooling chamber for holding objects to be processed, in particular biological objects |
DE3615713C1 (en) * | 1986-05-09 | 1987-09-03 | Bernhard Dr Wolf | Microtome |
DE19527168A1 (en) * | 1995-07-25 | 1997-01-30 | Robert Bodenstedt Elekronik | Illuminating device for bicycle rear light |
US6152590A (en) * | 1998-02-13 | 2000-11-28 | Donnelly Hohe Gmbh & Co. Kg | Lighting device for motor vehicles |
EP0971186B1 (en) * | 1998-07-08 | 2003-08-20 | Liebherr-Hausgeräte Ochsenhausen GmbH | Interior lighting for refrigerator |
DE19908404C2 (en) * | 1999-02-26 | 2002-01-24 | Airsigna Gmbh & Co Kg | Interior lighting for vehicles, in particular air and water vehicles |
DE29914037U1 (en) * | 1999-08-11 | 2000-12-28 | Diehl Ako Stiftung Gmbh & Co | Indoor lighting for household appliances |
DE19961787A1 (en) * | 1999-12-21 | 2001-06-28 | Bsh Bosch Siemens Hausgeraete | Refrigeration device has illumination device with illumination body between transparent, plate-like cover layer and wall with heat resistant section in illumination body radiation region |
DE10013056B4 (en) * | 2000-03-19 | 2017-09-28 | Osram Opto Semiconductors Gmbh | lighting arrangement |
DE10051159C2 (en) * | 2000-10-16 | 2002-09-19 | Osram Opto Semiconductors Gmbh | LED module, e.g. White light source |
US6472823B2 (en) * | 2001-03-07 | 2002-10-29 | Star Reach Corporation | LED tubular lighting device and control device |
US6578986B2 (en) * | 2001-06-29 | 2003-06-17 | Permlight Products, Inc. | Modular mounting arrangement and method for light emitting diodes |
DE10147986A1 (en) * | 2001-09-28 | 2003-04-10 | Osram Opto Semiconductors Gmbh | Manufacturing surface mountable light emitting diode light source involves bending leadframe reflector section into shape of reflector before or after mounting LED chip |
CZ12316U1 (en) * | 2002-04-25 | 2002-06-10 | K.T.-Kalttech, S.R.O. | Lighting device for refrigerators, particularly for thermoelectric refrigerators |
DE10250877B4 (en) * | 2002-10-31 | 2008-09-04 | Osram Opto Semiconductors Gmbh | A semiconductor light-emitting device, manufacturing method and use thereof, a plurality of modules including the semiconductor light-emitting devices, and the use thereof |
DE10303969B4 (en) * | 2003-01-31 | 2008-11-27 | Osram Opto Semiconductors Gmbh | Light-emitting diode arrangement with a light-emitting diode and a plurality of light-emitting diodes |
-
2003
- 2003-04-19 DE DE20321622U patent/DE20321622U1/en not_active Expired - Lifetime
- 2003-04-19 DE DE10318026.5A patent/DE10318026C5/en not_active Expired - Fee Related
-
2004
- 2004-02-13 GB GB0403255A patent/GB2400645B/en not_active Expired - Fee Related
- 2004-04-14 US US10/824,211 patent/US20040206093A1/en not_active Abandoned
- 2004-04-16 JP JP2004121043A patent/JP2004317515A/en active Pending
- 2004-04-19 CN CNB2004100368306A patent/CN100498271C/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5070935A (en) * | 1986-10-14 | 1991-12-10 | Hellmuth Sitte | Refrigerated chamber for obtaining thin slices at low temperature |
US4979376A (en) * | 1988-10-10 | 1990-12-25 | Manfred Biehl | Microtomy device |
US5974811A (en) * | 1997-03-07 | 1999-11-02 | Carl-Zeiss-Stiftung Trading As Carl Zeiss | Suction device for cutting wastes in a cryostatic microtome |
US6594075B1 (en) * | 1999-11-29 | 2003-07-15 | Olympus Optical Co., Ltd. | Microscope with electronic image sensor |
US6580309B2 (en) * | 2000-02-03 | 2003-06-17 | Koninklijke Philips Electronics N.V. | Supply assembly for a LED lighting module |
US6578979B2 (en) * | 2000-09-26 | 2003-06-17 | Lisa Lux Gmbh | Illumination body for refrigeration devices |
US20060091827A1 (en) * | 2000-12-20 | 2006-05-04 | Gestion Proche Inc. | Lighting device |
US20020139124A1 (en) * | 2001-03-30 | 2002-10-03 | Palermo Henry William | Disinfection system and method of using same |
US20040032729A1 (en) * | 2002-06-26 | 2004-02-19 | Choi Daniel S. | Removable light |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070204734A1 (en) * | 2006-01-18 | 2007-09-06 | Tetsumasa Ito | Automatic sliced piece fabricating apparatus and automatic sliced piece sample fabricating apparatus |
US7802507B2 (en) | 2006-01-18 | 2010-09-28 | Seiko Instruments Inc. | Automatic sliced piece fabricating apparatus and automatic sliced piece sample fabricating apparatus |
US20110282247A1 (en) * | 2010-03-31 | 2011-11-17 | Helen Denise | Novel Ovulation Predictor Device |
Also Published As
Publication number | Publication date |
---|---|
CN1538160A (en) | 2004-10-20 |
DE10318026C5 (en) | 2015-11-12 |
GB0403255D0 (en) | 2004-03-17 |
JP2004317515A (en) | 2004-11-11 |
GB2400645A (en) | 2004-10-20 |
DE20321622U1 (en) | 2008-07-17 |
CN100498271C (en) | 2009-06-10 |
DE10318026B4 (en) | 2010-05-27 |
GB2400645B (en) | 2005-06-29 |
DE10318026A1 (en) | 2004-11-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: LEICA MICROSYSTEMS NUSSLOCH GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DORENKAMP, CLAUDIA;KUENKEL, STEFAN;OPPL, GERHARD;AND OTHERS;REEL/FRAME:015227/0789;SIGNING DATES FROM 20040211 TO 20040216 |
|
AS | Assignment |
Owner name: LEICA BIOSYSTEMS NUSSLOCH GMBH, GERMANY Free format text: CHANGE OF NAME;ASSIGNOR:LEICA MICROSYSTEMS NUSSLOCH GMBH;REEL/FRAME:019930/0254 Effective date: 20070719 Owner name: LEICA BIOSYSTEMS NUSSLOCH GMBH,GERMANY Free format text: CHANGE OF NAME;ASSIGNOR:LEICA MICROSYSTEMS NUSSLOCH GMBH;REEL/FRAME:019930/0254 Effective date: 20070719 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |