Apparatus for recording, ERASE-read information in the multilayer optical recording medium

摘要

the device u0434u043bu00a0 records - u0441u0442u0438u0440u0430u043du0438u00a0 - u0441u0447u0438u0442u044bu0432u0430u043du0438u00a0 multilayer optical information in registering the environment u0441u043eu0441u0442u043eu00a0u0449u0435u0435 of optical devices u043fu043eu0437u0438u0446u0438u043eu043du0438u0440u043eu0432u0430u043du0438u00a0 regis u0442u0440u0438u0440u0443u044eu0449u0435u0439 environment, sources of u0438u0437u043bu0443u0447u0435u043du0438u00a0, generating two u0434u043bu0438u043du0430u0445 waves 1, 2, the optical system u0444u043eu0440u043cu0438u0440u043eu0432u0430u043du0438u00a0 u0438u0437u043bu0443u0447u0435u043du0438u00a0 devices u043fu043eu0437u0438u0446u0438u043eu043du0438u0440u043eu0432u0430u043du0438u00a0 optical p u0443u0447u043au0430, receiver optical u0438u0437u043bu0443u0447u0435u043du0438u00a0, u043eu0442u043bu0438u0447u0430u044eu0449u0435u0435u0441u00a0 orderit is u0434u0432u0443u043cu00a0 independent electrically u0443u043fu0440u0430u0432u043bu00a0u0435u043cu044bu043cu0438 u0430u0442u0442u0435u043du044eu0430u0442u043eu0440u0430u043cu0438 u0434u043bu00a0 two wavelengths 1, 2, and the optical system u0444u043eu0440u043cu0438u0440u043eu0432u0430u043du0438u00a0 u0438u0437u043bu0443u0447u0435u043du0438u00a0 introduced u043au043eu043cu043fu0435u043du0441u0430 thor chromatic aberrations, while in the data recording capacity u0438u0437u043bu0443u0447u0435u043du0438u00a0 at wavelength of 1 equal to the maximum value, and the power u0438u0437u043bu0443u0447u0435u043du0438u00a0 at a wavelength of 2 is equal to 0.when erasing the information capacity u0438u0437u043bu0443u0447u0435u043du0438u00a0 at wavelength of 1 is 0, and the capacity of u0438u0437u043bu0443u0447u0435u043du0438u00a0 at a wavelength of 2 equal to the maximum value, the reading information u0442u043du043eu0448u0435u043du0438u0435 power u0438u0437u043bu0443u0447u0435u043du0438u00a0 at wavelength 1 to a power u0438u0437u043bu0443u0447u0435u043du0438u00a0 at wavelength of 2 u043du0430u0445u043eu0434u0438u0442u0441u00a0 between 0.2 and 0.7.