Aperture

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Ingenium, 1998.0271.001
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OBJECT TYPE: variable/circular/revolving/demonstration
DATE: 1870–1880
ARTIFACT NUMBER: 1998.0271.001

MANUFACTURER: Laurent, Leon
MODEL: Unknown
LOCATION: Paris, France

More Information

General Information

Serial #: N/A
Part Number: 1
Total Parts: 1
AKA: N/A
Patents: N/A
General Description: ALL METAL CONSTRUCTION.

Dimensions

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

Length: 12.8 cm
Width: 11.8 cm
Height: 3.3 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: Laurent
Country: France
State/Province: Unknown
City: Paris

Context

Country: Canada
State/Province: Ontario
Period: PROBABLY USED C. 1870-1880S +
Canada: PART OF A COLLECTION OF PHYSICS LABORATORY AND CLASSROOM DEMONSTRATION APPARATUS FROM MCMASTER UNIVERSITY. FOUNDED IN 1887 MCMASTER WAS ORIGINALLY A BAPTIST INSTITUTION, AND WAS LOCATED IN TORONTO. IN 1930 THE UNIVERSITY AND ITS STUDENT POPULATION OF 500 WAS MOVED TO HAMILTON, ONT. ( REF. 1)
Function: USED TO VARY THE AMOUNT OF LIGHT ADMITTED TO, OR EMITTED FROM, ANOTHER OBJECT. THIS APERTURE MAY HAVE BEEN USED AS AN OPTICAL BENCH COMPONENT.
Technical: EXAMPLE OF ROTATING DISK WITH ROUND APERTURES OF DIFFERING DIAMETER. THIS EXAMPLE COULD BE FITTED OVER A LIGHT SOURCE, POSSIBLY ON AN OPTICAL BENCH, TO DIRECT A LIMITED BEAM. IT COULD ALSO BE USEDOVER A LENS.
Area Notes: Unknown

Details

Markings: " LAURENT/ RUE DE L'ODEON/ PARIS " stamped in cap, below rotating disk.
Missing: APPEARS COMPLETE. From CA of 11/05/2001 by David Daley: No - Complete
Finish: DARK FINISH APPLIED TO ROTATING DISK, AND TO INSIDE OF CAP MOUNTING.
Decoration: N/A

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If you choose to share our information about this collection object, please cite:

Laurent, Leon, Aperture, circa 1870–1880, Artifact no. 1998.0271, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1998.0271.001/

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