RU94035715A - Multiple-beam interference unit - Google Patents
Multiple-beam interference unitInfo
- Publication number
- RU94035715A RU94035715A RU94035715/25A RU94035715A RU94035715A RU 94035715 A RU94035715 A RU 94035715A RU 94035715/25 A RU94035715/25 A RU 94035715/25A RU 94035715 A RU94035715 A RU 94035715A RU 94035715 A RU94035715 A RU 94035715A
- Authority
- RU
- Russia
- Prior art keywords
- optical axis
- optical
- optical element
- curvature
- spherical surfaces
- Prior art date
Links
Landscapes
- Diffracting Gratings Or Hologram Optical Elements (AREA)
- Instruments For Measurement Of Length By Optical Means (AREA)
Abstract
FIELD: optical instruments using holography. SUBSTANCE: Homogeneous medium, which refraction index is n0, has point source of coherent linear-polarization light with wavelength λ, and optical element, which refraction index is n and which has parallel spherical surfaces with common curvature center but with different curvature radiuses r1 - r2 = d. Both optical element and light source are located on common optical axis. Convexity of both surfaces is directed towards light source. Distance between spherical surfaces conform to condition d=n•r1/(f•(n-n0)+n•r1),, where r1 is curvature radius of greater surface, f is focal length. Interference pattern is projected to matrix of photodetectors using charge-coupling devices. Period for arrangement of photodetectors is T. Light receiver is not perpendicular to optical axis, where light source and optical element are located, but is displaced with respect to perpendicular to optical axis by angle of α=arcsin λ/T.. EFFECT: increased precision of measuring interference alternation in shape of light wave edge, simplified design of interferometer.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94035715A RU2085873C1 (en) | 1994-09-23 | 1994-09-23 | Multiple-beam interference device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU94035715A RU2085873C1 (en) | 1994-09-23 | 1994-09-23 | Multiple-beam interference device |
Publications (2)
Publication Number | Publication Date |
---|---|
RU94035715A true RU94035715A (en) | 1996-07-10 |
RU2085873C1 RU2085873C1 (en) | 1997-07-27 |
Family
ID=20160812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU94035715A RU2085873C1 (en) | 1994-09-23 | 1994-09-23 | Multiple-beam interference device |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2085873C1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2549557C1 (en) * | 2014-01-29 | 2015-04-27 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") | Method for multichannel measurement of light wavelength shift using fabry-perot interferometer |
-
1994
- 1994-09-23 RU RU94035715A patent/RU2085873C1/en active
Also Published As
Publication number | Publication date |
---|---|
RU2085873C1 (en) | 1997-07-27 |
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