Cap, lens

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OBJECT TYPE
push-on
DATE
1969
ARTIFACT NUMBER
2010.1447.008
MANUFACTURER
Unknown
MODEL
Unknown
LOCATION
Unknown

More Information


General Information

Serial #
N/A
Part Number
8
Total Parts
13
AKA
N/A
Patents
N/A
General Description
An object comprised of synthetic material/Un objet fait avec des éléments synthétiques.

Dimensions

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

Length
2.5 cm
Width
2.5 cm
Height
N/A
Thickness
N/A
Weight
N/A
Diameter
N/A
Volume
N/A

Lexicon

Group
Exploration and Survey
Category
Measurement-distance
Sub-Category
N/A

Manufacturer

AKA
Unknown
Country
Unknown
State/Province
Unknown
City
Unknown

Context

Country
Canada
State/Province
British Columbia
Period
1969-1978
Canada
This geodimeter was acquired from a Canadian branch of the manufacturer known as AGAtronics. Surveying Canada’s extensive and rugged territory has demanded sophisticated science and played a crucial role in the assessment and exploitation of our natural resources. The donor and his family immigrated to Canada in 1952 and moved to British Columbia in 1964. He was commissioned a British Columbia Land Surveyor in 1969 and the artifact was used extensively by him in the province’s Cariboo area until 1978 when he acquired a newer model to replace it. Ce géodimètre était acquis d'une branche du manufacturier canadien soue le nom AGAtronics. L'arpentage du Canada demande l'utilisation d'une science précise pour l'exploitation de nos ressources naturelles. Le donateur et sa famille ont immigré au Canada en 1952 et ont déménagé en Colombie-Britannique en 1964. Il est devenu un arpenteur-géomètre breveté de la province en 1969. L'artefact était utilisé dans la région Cariboo jusqu'à 1978 quand le donateur la remplacer par un modèle plus récent.
Function
This lens cap protected a lens that was attached to a geodimeter. The lens cap would have been inserted over the lens during transport as well as out in the field after concluding land surveying experiments. Ce capuchon d'objectif était attaché à une lentille qui faisait partie d'un géodimètre. Le capuchon d'objectif était inséré par-dessus une lentille pendant le transport dans le champ et après que les expériences d'arpentage étaient conclus.
Technical
Model 6B likely came out around 1969 and was the first one with an orange finish rather than the earlier gray. This artifact represents a shift away from earlier instruments characterized by their mass and heft towards later ones that were so light they inspired the concept of the “total station”: a group of instruments mounted on a single tripod capable of making all of the usual surveying measurements. It was part of the first wave of lighter instruments using transistors. It also made use of of tungsten/mercury vapour lamps but they too would soon be superseded by the introduction of the laser, and then both microwave and infrared technology. Le Modèle 6B a probablement été conçus autour de l'année 1969 et il était le premier à avoir une finition orange au lieu du gris typique. L'artefact représente un changement ou un éloignement des instruments plus vieux qui était caractérisé par leur masse et grandeur. Le Modèle 6B étais non seulement plus léger, mais aussi une station complète sur un trépied capable de faire tout le mesurage nécessaire pour l'arpentage. L'objet faisait partie de la première vague à utiliser des transistors et des lampes à vapeur de tungstène/mercure, mais ils ont été remplacés par le laser et après par des micro-ondes et la technologie de l'infrarouge.
Area Notes
Unknown

Details

Markings
L'objet n'a pas de marque.
Missing
Appears complete/L'objet a toutes ces pièces.
Finish
A circular object made of black synthetic material. It has vertical lines or grooves that run around its entire circumference. The inner lip of the object has a ridge to allow it to be pushed onto a lens. Un objet circulaire qui est fait avec du matériel synthétique. Il a des lignes verticales ou des rainures tout autour de sa circonférence. À l’intérieur de l’objet la lèvre a une crête pour permettre à l’artefact d’être fixé à une lentille.
Decoration
N/A

CITE THIS OBJECT

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

Unknown Manufacturer, Cap, lens, circa 1969, Artifact no. 2010.1447, Ingenium – Canada’s Museums of Science and Innovation, http://collections.ingeniumcanada.org/en/id/2010.1447.008/

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