Sentence examples for optical record from inspiring English sources

In neighbouring countries Norway and Denmark, a medical testing certificate is required from 75 years of age, and in Finland an optical record is compulsory from 45 years of age.

The sensitivity of optical recording using dye absorption signals is comparable to that of local field potential recordings and absorption dyes have much lower phototoxicity than fluorescent voltage sensitive dyes [30].

He developed a sound-on-film optical recording system called Phonofilm and demonstrated it in theatres between 1923 and 1927.

Its dominance was tested in the '80s by the laserdisc, the first consumer medium to use optical recording technology and not magnetic tape.

Today the principal use of optical recording is to make a master optical negative for final exhibition prints after all editing and rerecording have been completed.

In the eighteen-eighties, for instance, the Volta Laboratory, led by Bell, developed a type of photographic disk that contained an optical recording and was played back by light, forty years before the same technique was adapted for movie soundtracks.

In optical recording systems, sound waves modulate a beam of light; the sound track, which may be of variable density or of variable width, is a photographic record of the varying light.

Static optical recording tests were carried out.

Figure 6 depicts the optical recording system for simulation.

Their application ranges from optical recording media to xerography[15 17].

We improved our optical recording system to record epifluorescence optical signals from the intact cerebral cortex.