FIELD: physics, optics.
SUBSTANCE: on the light path, the interferometer has a spectral filter for monochromatisation of light, an entrance aperture diaphragm and a screen with two pin holes. The pin holes are illuminated with sunlight passing through the entrance diaphragm. Two light beams diverging from the holes form an interference field which is observed or photographed in the output plane. A short-focus divergent lens is placed behind the screen with an entrance aperture. There are scanning and recording devices for determining the degree of spatial coherence in the output plane.
EFFECT: high degree of spatial coherence, high intensity of spatial coherence of light.
7 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| OPTICAL INTERFERENCE RETINOMETER | 2003 |
|
RU2253352C2 |
| ATMOSPHERIC COHERENCE INTERFEROMETER | 1992 |
|
RU2087878C1 |
| TUTORIAL OPTICAL INTERFEROMETER | 1998 |
|
RU2154307C2 |
| DEVICE FOR CHECKING VISION AND APPLYING FUNCTIONAL TREATMENT IN OPHTHALMOLOGY | 2005 |
|
RU2294131C1 |
| DIFFRACTION INTERFEROMETER | 2003 |
|
RU2240503C1 |
| METHOD FOR DETERMINATION OF NORMAL SHIFTS OF BODY SURFACE | 2007 |
|
RU2359221C1 |
| INTERFERENCE METHOD MEASURING DISTANCE (LENGTH) AND DEVICE FOR ITS REALIZATION | 2002 |
|
RU2228516C2 |
| STANDARDLESS HIGHLY COHERENT INTERFEROMETER | 2021 |
|
RU2760920C1 |
| PRACTICE INTERFERENCE DEVICE WITH CRYSTAL OF ICELAND SPAR | 2001 |
|
RU2219490C2 |
| DEVICE FOR MEASURING RETINAL VISION ACUITY | 2006 |
|
RU2308215C1 |
