FIELD: optical engineering; measurement engineering.
SUBSTANCE: polarization interferometer for measuring spatial changes in refractivity of transparent media has lighting unit mounted in series with interference-polarization unit composed of polarizer, analyzer and interfering beams unit disposed between polarizer and analyzer. Interferometer also has photo-registering device. As lighting unit the unit is chosen which forms parallel beam. Interfering beam splitter of interference-polarization unit is made in form of member with flat-parallel working faces. The member is cut of single-axis crystal for inclination at two mutually perpendicular planes, which are in turn perpendicular to plane of transmission cross-section of interferometer's optical system.
EFFECT: simple and reliable measurement of changes in refractivity of transparent media.
4 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TWO-BEAM INTERFEROMETER FOR MEASURING OF REFRACTIVE INDEX OF ISOTROPIC AND ANISOTROPIC MATERIALS | 1991 |
|
RU2102700C1 |
| DEVICE FOR MEASURING NON-UNIFORMITY OF DOUBLE REFRACTION IN CRYSTALS | 0 |
|
SU958922A1 |
| METHOD TO REVEAL DEFECTS OF QUARTZ CRYSTALLINE LENS | 2007 |
|
RU2379656C2 |
| INTERFERENTIAL METHOD OF DETERMINATION OF OPTICAL CHARACTERISTICS OF OPTICAL ELEMENTS AND DEVICE FOR ITS IMPLEMENTATION (VARIANTS) | 1993 |
|
RU2078307C1 |
| DEVICE FOR STUDYING SEDIMENTATION | 0 |
|
SU851204A1 |
| SHIFT INTERFEROMETER | 0 |
|
SU673839A1 |
| REFRACTOMETER | 0 |
|
SU1673925A1 |
| DISPERSION INTERFEROMETER | 0 |
|
SU1775622A1 |
| POLARIZATION INTERFEROMETER FOR MEASURING LINEAR DISPLACEMENTS OF OBJECT | 0 |
|
SU1455232A1 |
| DEVICE MEASURING LINEAR MOVEMENTS | 1989 |
|
SU1816082A1 |
