General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

Glass tube coated with black phosphor/ metal parts/ synthetic parts

Dimensions

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

Length

121.0 cm

Width

N/A

Height

N/A

Thickness

N/A

Weight

N/A

Diameter

3.8 cm

Volume

N/A

Lexicon

Group

Lighting Technology

Category

Lamp bulbs

Sub-Category

N/A

Manufacturer

AKA

General Electric

Country

United States of America

State/Province

Unknown

City

Unknown

Context

Country

North America

State/Province

Unknown

Period

circa 1940 +

Canada

An example of an American made lamp bulb used in Canada, part of a large and varied collection of over 7500 electrical items acquired and documented by Ontario Hydro in the 1960s. The collection was thought to be the largest and most comprehensive of its kind in Canada and was donated to the Canada Science and Technology Museum in 1992

Function

A device used to provide illumination by means of an electric current which excites mercury vapour in a glass tube, producing short-wave ultraviolet light that then creates fluorescence, producing visible light.

Technical

The GE blacklight lamp emits in the 350-400 nanometer region of th elight spectrum. That band is within the "UV-A" region of the spectrum that is from 315-400 nanometers. The "BL" type emits both vivible light and UV. WHen using this light, the eyes and skin need to be protected to prevent irritation.

Area Notes

Unknown

Details

Markings

Red lettering on glass reads 'GENERAL GE (logo) ELECTRIC/ 40W-BLB BLACK LIGHT/ MADE IN U.S.A.'

Missing

Appears complete

Finish

Black tube/ metallic and black end caps

Decoration

N/A