🛠️ Invention or technique

Coherent optical-fibre bundle (fibrescope)

Haz coherente de fibras ópticas (fibroscopio)

Date
1954 · confidence high
Place
London, England, United Kingdom
Credited to
Harold Hopkins and Narinder Singh Kapany
Field
Communication

⚠️ Disputed: the sources disagree.

What it is

A bundle of thousands of aligned glass fibres that carries an image from one end to the other, published in Nature in 1954. Kapany, born in Punjab, coined the term fibre optics in 1956.

Van Heel (Delft, 1954) published the use of cladding at the same time; Baird and Hansell patented fibre bundles in 1926-1927 without demonstrating them. Hopkins and Kapany obtained the first image.

What it led to

  • flexible fibre endoscopes
  • clad fibre for communications
  • fibre lighting and sensors
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Sources✓ verified 2026-11-06