Lewis lamp
id:
lewis-lamp-316-3625158
title:
Lewis lamp
text:
The Lewis lamp is a type of light fixture used in lighthouses. It was invented by Winslow Lewis who patented the design in 1810. The primary marketing point of the Lewis lamp was that it used less than half the oil of the prior oil lamps they replaced. The lamp used a similar design to an Argand lamp, adding a parabolic reflector behind the lamp and a magnifying lens made from 4-inch-diameter (100 mm) green bottle glass in front of the lamp. A similar variant using a parabolic reflector was crea
brand slug:
wiki
category slug:
encyclopedia
description:
Type of light fixture used in lighthouses
original url:
https://en.wikipedia.org/wiki/Lewis_lamp
date created:
date modified:
2022-11-08T16:57:26Z
main entity:
{"identifier":"Q6537252","url":"https://www.wikidata.org/entity/Q6537252"}
image:
fields total:
13
integrity:
14