Gabriel Lippmann

[On the Gaussian curve, remarked to Poincaré:] Experimentalists think that it is a mathematical theorem while the mathematicians believe it to be…

— Gabriel Lippmann

During exposure, interference takes place between the incident rays and those reflected by the mirror, with the formation of interference fringes half…

— Gabriel Lippmann

The series of photographic operations, developing, washing, final drying, takes about quarter of an hour.

— Gabriel Lippmann

In the case of composite colour, an infinity of systems must be obtained for maxima infinitely slight and with an infinity of…

— Gabriel Lippmann

This result is due to a phenomenon of interference which occurs within the sensitive layer.

— Gabriel Lippmann

The problem of direct colour photography has been facing us since the turn of the last century.

— Gabriel Lippmann

The plate at each point only sends back to the eye the simple colour imprinted. The other colours are destroyed by interference.…

— Gabriel Lippmann

When the shot is afterwards subjected to white light, colour appears because of selective reflection.

— Gabriel Lippmann

Life is short and progress is slow.

— Gabriel Lippmann

The length of exposure (one minute in sunlight) is still too long for the portrait. It was fifteen minutes when I first…

— Gabriel Lippmann

I got quite good results from protein plates.

— Gabriel Lippmann

Most of these pictures, taken while travelling, were developed on the mantelpiece of a hotel room, which proves that the method is…

— Gabriel Lippmann