Projector
Use this image
Can I reuse this image without permission? Yes
Object images on the Ingenium Collection’s portal have the following Creative Commons license:
Copyright Ingenium / CC BY-NC-ND (Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
ATTRIBUTE THIS IMAGE
Ingenium,
1987.1185.015
Permalink:
Ingenium is releasing this image under the Creative Commons licensing framework, and encourages downloading and reuse for non-commercial purposes. Please acknowledge Ingenium and cite the artifact number.
DOWNLOAD IMAGEPURCHASE THIS IMAGE
This image is free for non-commercial use.
For commercial use, please consult our Reproduction Fees and contact us to purchase the image.
- OBJECT TYPE
- N/A
- DATE
- 1955–1965
- ARTIFACT NUMBER
- 1987.1185.015
- MANUFACTURER
- Bausch & Lomb
- MODEL
- Unknown
- LOCATION
- Unknown
More Information
General Information
- Serial #
- N/A
- Part Number
- 15
- Total Parts
- 17
- AKA
- N/A
- Patents
- N/A
- General Description
- PRINCIPALLY METAL/ GLASS OPTICS/ SOME SYNTHETIC KNOBS, SWITCHES, HOSES, ETC.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 17.0 cm
- Width
- 12.2 cm
- Height
- 38.2 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Exploration and Survey
- Category
- Photogrammetry
- Sub-Category
- N/A
Manufacturer
- AKA
- Bausch Lomb
- Country
- Unknown
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- C. 1965-1970
- Canada
-
DESIGNED BY SAMUEL G. GAMBLE, DEPT. OF MINES & TECHNICAL SURVEYS, CANADA & MFD. BY PHOTO SURVEYS CORP., TORONTO ON. USED BY ENERGY, MINES & RESOURCES (EMR) CANADA IN 250,000 SERIES RECONNAISSANCE MAPPING PROJECT (AS PER MR. L. SEBERT) - Function
-
TO PROJECT STEREOSCOPIC MODEL IN ORDER TO INTERPRET, MEASURE & PLOT DATA GATHERED FROM AERIAL SURVEY PHOTOGRAPHS. - Technical
-
DESIGN PERMITS A CLOSE-SPACED PATTERN OF LUMINOUS DOTS TO BE PROJECTED & FORMS AN ELEVATION REFERENCE PLANE IN THE STEREOMODEL. THE 2 PROJECTORS ARE RAISED OR LOWERED IN UNISON, MOVING MODEL DATUM WITH RESPECT TO THE REFERENCE PLANE. CONTOURS & PLANIMETRIC DETAIL ARE TRACED FREEHAND ON MAP SHEET ON TABLE BELOW (REF.1) "The Gamble stereoplotter was designed by Samuel G. Gamble, Dept. of Mines & Technical Surveys, Canada, & mfd. by PSC Applied Research Ltd., of Toronto, Canada. This instrument utilizes either multiplex or Balplex projectors to form the stereomodel in anaglyphic projection. A very close-space pattern of luminous dots is projected to form an elevation reference plane in the stereomodel. Raising & lowering of the projectors in unison moves the model datum with respect to the projected elevation reference plane. Contours & planimetric detail are traced freehand on a map sheet mounted directly upon two supporting tables. The handheld tracing pencil thus becomes the floating mark in the projected model." (Ref. 1, p.560) - Area Notes
-
Unknown
Details
- Markings
- Triangular ‘B&L' plate screwed to projector front.
- Missing
- N/A
- Finish
- COMPONENTS SILVER METAL/ BLACK CRINKLE-TEXTURED FINISH
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Bausch & Lomb, Projector, circa 1955–1965, Artifact no. 1987.1185, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1987.1185.015/
FEEDBACK
Submit a question or comment about this artifact.