Lens, telescope

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OBJECT TYPE: N/A
DATE: 1905
ARTIFACT NUMBER: 1974.0488.021

MANUFACTURER: Unknown
MODEL: Unknown
LOCATION: Unknown

More Information

General Information

Serial #: N/A
Part Number: 21
Total Parts: 24
AKA: N/A
Patents: N/A
General Description: Glass lens with metal housing

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length: N/A
Width: N/A
Height: N/A
Thickness: N/A
Weight: N/A
Diameter: N/A
Volume: N/A

Lexicon

Group: Astronomy
Category: Observation equipment
Sub-Category: N/A

Manufacturer

AKA: Unknown
Country: Unknown
State/Province: Unknown
City: Unknown

Context

Country: Canada
State/Province: Ontario
Period: Dominion Observatory: From 1957 to 1975 NMST: From 1975-2014, Helen Sawyer Hogg Observatory
Canada: This three-element 15-inch diameter lens system manufactured by Perkin-Elmer Copr. replaced the original objective lens by Brashear in 1958.
Function: The primary three-element objective lens system of the Dominion Observatory 15-inch refracting telescope.
Technical: Manufactured by Perkin-Elmer Corp., this three-element 15-inch diameter lens system called an apochromat offered advantages over the original Brashear doublet lenses by reducing the amount of chromatic aberrations commonly found in refracting telescopes.
Area Notes: Unknown

Details

Markings: N/A
Missing: N/A
Finish: Unknown
Decoration: N/A

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Unknown Manufacturer, Lens, telescope, circa 1905, Artifact no. 1974.0488, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1974.0488.021/

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