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Ingenium, 1969.0115.006
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OBJECT TYPE
OBJECTIVE
DATE
Unknown
ARTIFACT NUMBER
1969.0115.006
MANUFACTURER
Unknown
MODEL
Unknown
LOCATION
Unknown

More Information


General Information

Serial #
N/A
Part Number
6
Total Parts
26
AKA
N/A
Patents
N/A
General Description
Brass, glass/ .6 pt: case: brass

Dimensions

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

Length
4.6 cm
Width
2.6 cm
Height
2.6 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
Worldwide
State/Province
Unknown
Period
c.1860
Canada
Used in one of the Departments of Queen's University, Kingston, Ont.
Function
To observe biological specimens in minute detail./ .5-.7 corrective collar on objective consists of ring attached to the barrel which when turned alters the distance between the front lens & the one behind. used 1840-1860, to allow for aberration caused by irregular cover-slip thickness (ref.1,pg.69).
Technical
Wenham introduced his beam splitting prism in 1861 for use in a binocular microscope. This resulted in one tube straight & one inclined. Wenham microscopes were popular for the rest of the century because the prism could be removed to restore monocular vision, important for use at higher powers & resolution (ref.1,pg73-74)
Area Notes
Unknown

Details

Markings
SCALE ETCHED ON RING FROM 0-9 IN INCREMENTS OF 1, UNDER RING IS ETCHED 'Uncovered', & UNDER THIS ETCHED '1/5'/ .6PT CASE: 'Smith & Beck/ 6 Coleman St./ LONDON/ 2083' ETCHED ON LID, ETCHED ON TOP & BOTTOM '1/5'.
Missing
N/A
Finish
Lacquered brass
Decoration
N/A

CITE THIS OBJECT

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

Unknown Manufacturer, Lens, Unknown Date, Artifact no. 1969.0115, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1969.0115.006/

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