His first thoughts were to using this as a means of holding items in the workshop but his applying this to allowing the precise positioning of a light source led to the product we see around us today. Many modern table lamps used in offices and at home are based on the cantilevered and ‘counter-tensioned’ concept he developed and marketed as the “Anglepoise” lamp - designed and patented in 1932 and licensed to be produced by Herbert Terry Ltd.
He based the idea on the way human limbs are joined and tensioned and his design allowed the lamp head to be placed - and remain - in almost any position around the lamp-base. This was a great design innovation at the time and received a good deal of interest - especially following the acquisition of the patent by a Norwegian engineer and textiles designer, Jacob Jacobsen in 1934.
Jacobsen’s lamp; the Luxor L-1 is featured in the museum of Modern Art in New York. It had been Carwardine’s original idea to extend the spring-balance uses to supporting phones,
shelves and similar products - more in line with his own needs within his business but the application to the holding of a light source has resulted in the lamp product becoming a design - and an engineering icon - of the 20th Century.
Matching many of the requirements of 21st Century demands the lamp design holds its own in requiring less power when in use, since the area illuminated can be moved and directed. The effective light output level can also being changed by altering the distance between the lamp and the viewed area. Features such as these are inherent in the design of the product and result from the original need demanding that an item by placed exactly where it was required This part of the outcome of the design might realistically be expected in the requirement for a modern energy efficient lamp-product. ...
Illumination at the required level - easily adjustable on demand.
He based a lamp
design of his own
on the Anglepoise
and this has continued in production for many years.