Ernst Abbe

German physicist, optical-instrument designer, and industrialist (1840–1905) who worked out the diffraction theory of microscope resolution and, as majority owner of Carl Zeiss after Carl Zeiss's death, restructured the firm as an employee-owned foundation with an eight-hour day, profit-sharing, and pensions decades ahead of contemporary norms. The vault holds him at the convergence of two otherwise separate threads: his 1873/1882 diffraction papers are argued by a 2020 peer-reviewed history to be the true origin of the ≈0.5·λ/NA resolution formula that now governs EUV lithography — long credited to Lord Rayleigh instead — while his own labor charter for the Carl Zeiss Foundation is the founding document behind the modern company that holds a near-monopoly on EUV projection optics.

References

• claim-carl-zeiss-foundation-paired-employee-ownership-with-early-labor-reforms
• claim-abbe-not-rayleigh-formula-sets-lithography-resolution-limit
• claim-zeiss-smt-is-sole-supplier-of-euv-optics-behind-most-advanced-chips