Filter
Use this image
Can I reuse this image without permission? Yes
Object images on the Ingenium Collection’s portal have the following Creative Commons license:
Copyright Ingenium / CC BY-NC-ND (Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
ATTRIBUTE THIS IMAGE
Ingenium,
1993.0299.001
Permalink:
Ingenium is releasing this image under the Creative Commons licensing framework, and encourages downloading and reuse for non-commercial purposes. Please acknowledge Ingenium and cite the artifact number.
DOWNLOAD IMAGEPURCHASE THIS IMAGE
This image is free for non-commercial use.
For commercial use, please consult our Reproduction Fees and contact us to purchase the image.
- OBJECT TYPE
- BIREFRINGENT/0.5- 1.0 ANGSTROM
- DATE
- 1970–1992
- ARTIFACT NUMBER
- 1993.0299.001
- MANUFACTURER
- HALLE, B. NACHF.
- MODEL
- Unknown
- LOCATION
- Berlin, Germany
More Information
General Information
- Serial #
- 85
- Part Number
- 1
- Total Parts
- 3
- AKA
- N/A
- Patents
- N/A
- General Description
- GLASS, METAL & SYNTHETIC COMPONENTS.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 26.0 cm
- Width
- 23.0 cm
- Height
- 33.5 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Astronomy
- Category
- Observation equipment
- Sub-Category
- N/A
Manufacturer
- AKA
- HALLE
- Country
- Germany
- State/Province
- Unknown
- City
- Berlin
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- THIS FILTER PRESUMABLY USED C. 1970- 1992.
- Canada
-
THIS FILTER WAS PART OF THE OTTAWA RIVER SOLAR OBSERVATORY INSTALLATION. IT WAS USED ON TELESCOPE 930297, AN INSTRUMENT UNIQUE TO CANADA & THE WORLD. THE 1992 RETIREMENT OF THE ORSO SIGNIFIED THE END OF OPTICAL SOLAR PHYSICS RESEARCH AS CONDUCTED BY CDN GOV'T SCIENTISTS- AN AREA OF STUDY CONCENTRATED IN OTTAWA SINCE 1905. - Function
-
USED ON SOLAR TELESCOPE AS AID IN PHOTOGRAPHY OF SPECIFIC AREA OR SPECTRUM OF PHOTOSPHERE. USED ALSO TO CONTROL PATH OF LIGHT TO MONOCHROMATOR..2 &.3 USED TO REGULATE TEMPERATURE OF FILTER. - Technical
-
THIS FILTER, HAVING A 1A (ANGSTROM) TO 0.5A BANDPASS, WAS PART OF THE OPTICAL ARRANGEMENT USED TO PERFORM AN H-ALPHA PATROL OF ENTIRE DISC AND OF LIMB FEATURES OF CHROMOSPHERIC MATERIAL. PHOTOGRAPHY OF THE WIDE BAND OF THE CONTINUUM WAS SIMULTANEOUS WITH THAT OF AN AREA -8+ A FROM THE H-ALPHA LINE CENTRE. (REF.2 P.4). THERMOMAT CONTROLLED TEMP. OF FILTER, A CRITICAL FACTOR - Area Notes
-
Unknown
Details
- Markings
- .1 Mfr's plate screwed to filter casing reads " B. Halle Nachf./ Berlin-Steglitz./ Filter No 85 ". Purple decal applied to right of plate reads " HERZBERG INSTITUTE/ OF ASTROPHYSICS/ H1A- 00045/ ASTROMONY SECTION ". White decal applied below reads " Property of/ Propriete du/ NRCC/CNRC/061714 ". All controls labelled./ PT wooden box bears red dymo tape label reading " HALLE H. ALPHA FILTER "/.2 Thermomat bears' mfr's plate marked " Thermomat/ Nr. 6761/ 110V~ 90 W ". Green dymo label on front panel reads " DO NOT TOUCH METER/ CONTACT MAY CAUSE STATIC ERROR ". Red dymo label, beside, reads " THERMOSTAT/ HALLE H. ALPHA FILTER "./ .3 Green dymo label reads " HALLE FILTER/ CONTROLLER". Red dymo label reads " LEAVE AT 6.48 "
- Missing
- NONE.
- Finish
- OUTER CASING/MOUNTING ASSEMBLY HAS FLAT BLACK FINISH; FITTED WITH WHITE SYNTHETIC ADJUSTMENT DIAL. MOST OF LENS CASING EXTERIOR HAS DIMPLE-TEXTURED MEDIUM GREY FINISH; DARK-GREY AND BLACK TRIM. TEMPERATURE & FINE ADJUSTMENT SCALES, AND LEVEL PROTECTED WITHIN GLASS ENCLOSED HOUSING.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
HALLE, B. NACHF., Filter, between 1970–1992, Artifact no. 1993.0299, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/1993.0299.001/
FEEDBACK
Submit a question or comment about this artifact.
More Like This
![...](https://files.ingeniumcanada.org/items/coll/67/548/1993-0299-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/67/547/1993-0299-003-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/67/544/1993-0302-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/130/396/1993-0298-003-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/67/556/1993-0298-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/67/543/1993-0303-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/67/552/1993-0298-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/278/201/1993-0297-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/67/571/1993-0297-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/67/542/1993-0304-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/223/1996-0254-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/215/1996-0256-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/67/546/1993-0300-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/259/828/1996-0256-004-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/67/545/1993-0301-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/957/1966-0402-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/219/1996-0255-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/225/1996-0254-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/221/1996-0254-004-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/67/541/1993-0305-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/220/1996-0255-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/259/827/1996-0256-003-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/237/1996-0248-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/259/818/1996-0254-007-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/244/767/1966-0228-011-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/259/824/1996-0255-004-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/259/825/1996-0255-005-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/259/816/1996-0254-005-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/259/817/1996-0254-006-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/86/302/1966-0228-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/267/1999-0345-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/281/595/1995-0422-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/72/429/1995-0422-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/304/065/2008-0192-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/249/437/1979-0079-006-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/222/1996-0254-003-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/259/866/1996-0254-008-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/218/1996-0255-003-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/291/417/2008-0191-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/74/246/1996-0246-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/97/081/1970-1518-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/217/1996-0256-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/269/1999-0344-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/79/273/1999-0343-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/251/776/2008-0211-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/98/900/1970-0212-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/54/277/1987-1123-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/759/1974-0488-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/304/233/2008-0207-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/304/553/2008-0198-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/63/011/1992-2406-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/106/747/1974-0488-012-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/64/546/1992-1575-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/304/069/2008-0190-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/241/1996-0247-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/106/754/1974-0488-007-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/52/685/1987-2130-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/63/772/1992-1851-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/97/070/1970-1518-003-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/97/085/1970-1517-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/283/1999-0342-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/132/730/2004-0346-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/249/430/1979-0079-005-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/79/258/1999-0352-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/106/275/1974-0720-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/97/071/1970-1518-002-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/45/381/1983-0361-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/85/952/1966-0403-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/304/044/2008-0215-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/249/428/1979-0079-003-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/249/429/1979-0079-004-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/74/250/1996-0245-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/118/099/1979-0079-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/249/427/1979-0079-002-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/97/094/1970-1516-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/60/728/1990-0282-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/43/572/1982-0636-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/55/769/1987-0400-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/60/733/1990-0281-001-aa-cs.jpeg)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![No image available.](https://files.ingeniumcanada.org/static/No_image_sq.png)
![...](https://files.ingeniumcanada.org/items/coll/302/977/2008-0212-001-aa-cs.jpeg)
![...](https://files.ingeniumcanada.org/items/coll/284/894/1996-0245-002-aa-cs.jpeg)