General Information

Serial #

S5293

Part Number

1

Total Parts

7

AKA

N/A

Patents

N/A

General Description

Aluminum and other metals; glass lenses; electrical cord may be rubber-covered.

Dimensions

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

Length

40.0 cm

Width

16.0 cm

Height

2.5 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

American Optical

Country

United States of America

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

Projected images were viewed by patients as part of ophthalmological examination.

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

"AO" logo cast in raised print on top front. Plate on back reads "[logo- Underwriters Laboratories] PROJECT-O-CHART [logo- Canadian Standards Association]/ WATTS 50 125 VOLTS/ American Optical Company/ Instrument Division/ MADE IN U.S.A./ MODEL/ 1217/ SERIAL/ S5293/ U.S. DES. PAT. 149,995". "A" on obj. casing.

Missing

Appears complete.

Finish

Metallic housing finished in black crackle; aluminum scope and knobs; glass lenses; cord extends from back of base.

Decoration

N/A