General Information

Serial #

800-1

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

FUSED QUARTZ OPTICS; METAL (INCLUDING ALUMINUM)CASING.

Dimensions

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

Length

21.0 cm

Width

16.0 cm

Height

16.0 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

Bausch Lomb

Country

United States of America

State/Province

New York

City

Rochester

Context

Country

Canada

State/Province

Ontario

Period

THIS GRATING MAY HAVE BEEN USED C. 1960S- MID-1980S.

Canada

USED IN THE NATIONAL RESEARCH COUNCIL'S SPECTROSCOPY LABORATORIES, WHOSE HIGH STANDARDS AND GROUND BREAKING RESEARCH HELPED TO ESTABLISH NRC'S INTERNATIONAL REPUTATION IN THIS FIELD.

Function

USED WITH SPECTROGRAPH TO SEPARATE LIGHT INTO CHARACTERISTIC WAVELENGTHS FOR PURPOSES OF OBSERVATION AND ANALYSIS.

Technical

PRISM EFFECT ON SURFACE PRODUCED BY SERIES OF FINEGROOVES, CUT ON PRECISE ANGLES. THIS GRATING RULED 1200 GROOVES PER MM, ON FUSED QUARTZ, AND COATED WITH MGF2. (REF. 1)

Area Notes

Unknown

Details

Markings

"BLM/ 1200 l/mm/ [symbol]B= 21[degrees] 6' " handwritten in black marker on casing back./ Mfr's decal on grating back reads " BAUSCH & LOMB OPTICAL CO./ ROCHESTER, N.Y., U.S.A./ [logo]/ 33-52-59-75/ CATALOGUE NO./ 800-1/ SERIAL NO./ 1200/mm / GROOVES/mm / 21[degrees] 6'/ BLAZE ANGLE/ 2998.3 mm/ CONCAVE RADIUS/ BLAZE [right facing arrow] ". "800 A-1 " handwritten in pencil on one edge.

Missing

NONE. CHIP MISSING FROM LOWER REAR EDGE OF GRATING. From CA of 04/12/2000 by Myles Bailey: No - Complete

Finish

BRUSHED ALUMINUM CASING.

Decoration

N/A