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optical ratio
optical ratio, Total:7 items.
In the international standard classification, optical ratio involves: Cinematography, Fibre optic communications.
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, optical ratio
- GB/T 2927-1994 Optical printing ratios for enlargement and reduction of motion-picture film images-specification
International Organization for Standardization (ISO), optical ratio
- ISO 4238:1976 Cinematography; Optical printing ratios for enlargement and reduction of motion-picture film images; Specifications
Korean Agency for Technology and Standards (KATS), optical ratio
- KS A ISO 4238:2003 Cinematography－Optical printing ratios for enlargement and reduction of motion－picture film images－Specifications
British Standards Institution (BSI), optical ratio
- BS 5550-5.5.1:1978 Cinematography. Common to more than one film gauge. Printing. Specification for optical printing ratios for enlargement and reduction of motion-picture film images
- BS 5550 SubSec.5.5.1:1978 Cinematography. Common to more than one film gauge. Printing. Specification for optical printing ratios for enlargement and reduction of motion-picture film images
International Electrotechnical Commission (IEC), optical ratio
- IEC 61300-3-31:2003 Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-31: Examinations and measurements; Coupled power ratio measurement for fibre optic sources
German Institute for Standardization, optical ratio
- DIN EN 61280-2-9:2009 Fibre optic communication subsystem test procedures - Part 2-9: Digital systems - Optical signal-to-noise ratio measurement for dense wavelength-division multiplexed systems (IEC 61280-2-9:2009); German version EN 61280-2-9:2009