Lens
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1973.0423.007
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- OBJECT TYPE
- N/A
- DATE
- 1948
- ARTIFACT NUMBER
- 1973.0423.007
- MANUFACTURER
- Unknown
- MODEL
- Unknown
- LOCATION
- Unknown
More Information
General Information
- Serial #
- N/A
- Part Number
- 7
- Total Parts
- 7
- AKA
- N/A
- Patents
- N/A
- General Description
- Metal and glass lens
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 9.0 cm
- Width
- 6.0 cm
- Height
- 5.7 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Medical Technology
- Category
- Medical equipment
- Sub-Category
- N/A
Manufacturer
- AKA
- Unknown
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- North America
- State/Province
- Unknown
- Period
- This type of projector used c. late 1940s +
- Canada
-
Typical example of apparatus found in eye doctor's office. May have also been present in a regular physicians' office. - Function
-
A lens mounted in a fixture that focuses light. - Technical
-
Allowed for patient to actively participate in their examination though simple yet effective visual tests. Ex: acuity, green/red etc. - Area Notes
-
Unknown
Details
- Markings
- In white on the side of the fixture: ".1 .2 .4 .6 .8 1.0 1.2"
- Missing
- Unknown
- Finish
- A black and silver-coloured metal fixture with white numbers on the side and a clear glass lens mounted in it.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Unknown Manufacturer, Lens, after 1948, Artifact no. 1973.0423, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1973.0423.007/
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