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RU1793412C
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Wide-angle projection telecentric lens with prism
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RU1793418C
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Automatic focusing device for photographic objective
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SU1760506A1
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Microscope lens
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RU1775578C
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Decorative luminaire
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SU1775700A1
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Photographic objective lens
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RU1768537C
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Glass
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SU1753271A1
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Method to determine vibration parameters
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SU1727158A1
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Method of scintillation of display screen
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SU1744462A1
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Method of oscillation plane angle rotation determining for polarized radiation
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RU1770935C
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Tuneable interference - polarization filter
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SU1765756A1
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Device for testing flexible articles
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SU1734177A1
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Ac-to-dc voltage converter
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SU1734228A1
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Photodetector
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SU1734176A1
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Ac voltage-to-dc voltage converter
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RU1781657C
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Process of fabrication of reflecting array
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SU1753448A1
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Method for automatic passive focusing of lens
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SU1744682A1
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Small lens thermodisadjusted objective
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SU1767462A1
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Optical device in case and its method of assembling
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SU1728643A1
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Interferometer
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SU1724189A1
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Appliance for ophthalmosurgery
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