|
PL274283A1
|
|
Industrial refractometer
|
|
PL271335A1
|
|
Optical information and credid card and card reader therefor
|
|
PL271119A1
|
|
Inclination angle metering device with liquid wedge
|
|
PL254694A1
|
|
Automatic optoelectronic level
|
|
PL252852A1
|
|
Double-image optical view-finder
|
|
PL250608A1
|
|
Laser-type surface analyzer
|
|
PL250587A1
|
|
Afocal optical system with continuously variable angularmagnification ratio,in particular for stereoscopic microscopes
|
|
PL244880A1
|
|
Holographic reflection diffraction grating of low level of scattered light
|
|
PL242298A1
|
|
Monochromator with concave holographic diffraction grating of high brightness and low noise level
|
|
PL241750A1
|
|
Method of elimination of line screen and apparatus therefor
|
|
PL240846A1
|
|
Method of measurement of back radius of soft contact lens
|
|
PL236698A1
|
|
Terrestrial telescope with stabilized image
|
|
PL235037A1
|
|
Light mixer of high luminous efficiency
|
|
PL232177A1
|
|
Apparatus for measurement of peak length of light wave
|
|
PL231921A1
|
|
Interferometer with double refracting fibre
|
|
PL231922A1
|
|
Apparatus for measurement of fibre birefringence
|
|
PL218470A1
|
|
Optical system for change of the width and divergence of laser radiation beams
|
|
US4026650A
|
|
Device to correct color
|
|
DE2323931A1
|
|
HOLOGRAPHIC MICROSCOPE WITH ELIMINATION OF COAERENT NOISE
|
|
GB1318301A
|
|
Variable phase-contrast and interference microscope
|
