Grating, spectrograph
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1993.0321.001
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- OBJECT TYPE
- COATED/3013 GROOVES PER MM
- DATE
- 1950–1951
- ARTIFACT NUMBER
- 1993.0321.001
- MANUFACTURER
- Unknown
- MODEL
- Unknown
- LOCATION
- Unknown
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 2
- AKA
- N/A
- Patents
- N/A
- General Description
- GLASS; CAST METAL CASING HAS ALUMINUMADJUSTMENT KNOBS ON THREE LEVELLING FEET.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 20.5 cm
- Width
- 18.0 cm
- Height
- 18.0 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Physics
- Category
- Light & electromagnetic radiation
- Sub-Category
- N/A
Manufacturer
- AKA
- Unknown
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- THIS GRATING PRESUMABLY USED C. 1950S TO MID 1980S.
- Canada
-
USED IN THE NATIONAL RESEARCH COUNCIL'S SPECTROSCOPY LABORATORIES, WHOSE HIGH STANDARDS AND GROUND BREAKING RESEARCH HELPED TO ESTABLISH NRC'S INTENATIONAL REPUTATION IN THIS FIELD. - Function
-
USED WITH SPECTROGRAPH TO SEPARATE LIGHT INTO CHARACTERISTIC WAVELENGTHS FOR PURPOSES OF OBSERVATION AND ANALYSIS. - Technical
-
PRISM EFFECT ON GLASS SURFACE PRODUCED BY SERIES OF FINE GROOVES, CUT ON PRECISE ANGLES. - Area Notes
-
Unknown
Details
- Markings
- " H S " & right facing arrow crudely incised on rear adjustment knob. Two front knobs bear adjustment scales incised 0- 20+, divided in single increments. "3013 mm" handwritten in pencil on grating back; "Na", "Silver [---]/ G " also visible on back.
- Missing
- NONE. From CA of 04/12/2000 by Myles Bailey: No - Complete
- Finish
- ROUGH TEXTURED BRONZE COLOURED CASING; BRUSHED ALUMINUM LEVELLING FEET; FLAT, DULL BROWN FRAME OVER GLASS GRATING. COATING HAS BEEN APPLIED TO GRATING SURFACE.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Unknown Manufacturer, Grating, spectrograph, circa 1950–1951, Artifact no. 1993.0321, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1993.0321.001/
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