Testing of optical apparatus Testing structures by optical methods not otherwise provided for

GPHYSICS G01Measuring instruments G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

G01M11/00Testing of optical apparatus Testing structures by optical methods not otherwise provided for

G01M11/005Testing of reflective surfaces G01M11/02Testing of optical properties of lenses G01M11/0207Details of measuring devices G01M11/0214Details of devices holding the object to be tested G01M11/0221by determining the optical axis or position of lenses G01M11/0228by measuring refractive power G01M11/0235by measuring multiple properties of lenses, automatic lens meters G01M11/0242by measuring geometrical properties or aberrations G01M11/025by determining the shape of the object to be tested G01M11/0257by analyzing the image formed by the object to be tested G01M11/0264by using targets or reference patterns G01M11/0271by using interferometric methods G01M11/0278Detecting defects of the object to be tested G01M11/0285by measuring material or chromatic transmission properties G01M11/0292of objectives by measuring the optical modulation transfer function G01M11/04Optical benches G01M11/06Testing of alignment of vehicle head-light devices G01M11/061Details of the mechanical construction of the light measuring system G01M11/062using an indicator mounted on the head-light G01M11/064by using camera or other imaging system for the light analysis G01M11/065details about the image analysis G01M11/067Details of the vehicle positioning system G01M11/068with part of the measurements done from inside the vehicle G01M11/08Testing of mechanical properties G01M11/081by using a contact-less detection method G01M11/083by using an optical fiber in contact with the device under test [DUT] G01M11/085the optical fiber being on or near the surface of the DUT G01M11/086Details about the embedment of the optical fiber within the DUT G01M11/088of optical fibres; Mechanical features associated with the optical testing of optical fibres G01M11/30Testing of optical devices, constituted by fibre optics or optical waveguides G01M11/31with a light emitter and a light receiver being disposed at the same side of a fibre or waveguide end-face G01M11/3109Reflectometers detecting the back-scattered light in the time-domain G01M11/3118using coded light-pulse sequences G01M11/3127using multiple or wavelength variable input source G01M11/3136for testing of multiple fibers G01M11/3145Details of the optoelectronics or data analysis G01M11/3154Details of the opto-mechanical connection G01M11/3163by measuring dispersion G01M11/3172Reflectometers detecting the back-scattered light in the frequency-domain G01M11/3181Reflectometers dealing with polarisation G01M11/319Reflectometers using stimulated back-scatter G01M11/33with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face G01M11/331by using interferometer G01M11/332using discrete input signals G01M11/333using modulated input signals G01M11/334with light chopping means G01M11/335using two or more input wavelengths G01M11/336by measuring polarization mode dispersion [PMD] G01M11/337by measuring polarization dependent loss [PDL] G01M11/338by measuring dispersion other than PMD G01M11/35in which light is transversely coupled into or out of the fibre or waveguide G01M11/37in which light is projected perpendicularly to the axis of the fibre or waveguide for monitoring a section thereof G01M11/39in which light is projected from both sides of the fiber or waveguide end-face