SU773428A1 - Apparatus for investigating nonuniformities in transparent media - Google Patents
Apparatus for investigating nonuniformities in transparent media Download PDFInfo
- Publication number
- SU773428A1 SU773428A1 SU782705172A SU2705172A SU773428A1 SU 773428 A1 SU773428 A1 SU 773428A1 SU 782705172 A SU782705172 A SU 782705172A SU 2705172 A SU2705172 A SU 2705172A SU 773428 A1 SU773428 A1 SU 773428A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- nonuniformities
- investigating
- transparent media
- gradient
- magnitude
- Prior art date
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- Investigating Or Analysing Materials By Optical Means (AREA)
Description
1one
Изобретение относитс к области оптического приборостроени и может быть использовано дл изучени неоднородностей в прозрачных средах, например обтекани моделей в газодина- 5 мйческом эксперименте.The invention relates to the field of optical instrumentation and can be used to study inhomogeneities in transparent media, for example, flow past models in a gas-dynamic experiment.
Известно устройство дл изучени неоднородност.ей в прозрачных средах, содержащее осветитель с источником белого света, конденсатор с диафраг- мой, коллимирующий объектив, две объективные голограммы со взаимно перпендикул рными штрихами, приемный объектив, четыре фильтра различных цветов и регистрирующую систему с 5 визуализирующей диафрагмой, выполненную в виде крестообразного ножа.Это устройство позвол ет определить направление и величину градиента показател преломлени . Направление гра- 2 диента показател преломлени определ ют по цветовым оттенкам, которые получают в результате смещени цветов (красного с желтым, желтого с зеленым и т.д.). Величину градиента 25 можно определить путем измерени интенсивности цветового оттенка l .A device for studying heterogeneity in transparent media is known, comprising an illuminator with a white light source, a capacitor with a diaphragm, a collimating lens, two objective holograms with mutually perpendicular strokes, a receiving lens, four filters of different colors and a recording system with 5 imaging diaphragms , made in the form of a cross-shaped knife. This device allows to determine the direction and magnitude of the refractive index gradient. The direction of the gradient of the refractive index is determined by the color shades that are obtained by shifting the colors (red with yellow, yellow with green, etc.). The magnitude of the gradient 25 can be determined by measuring the intensity of the color tone l.
Следует отметить, что точность определений направлени градиента мала, так как близкие цветовые оттен-ЮIt should be noted that the accuracy of determining the direction of the gradient is small, since similar color shades
ки, характеризующие разные по направлению градиенты, плохо различаютс глазом. Еще труднее точно определить величину градиента, поскольку нужно измер ть интенсивность различных цветовьк оттенков и сравнивать с эталоном . Таким образом, точность определени величины и направлени градиента показател преломлени недостаточна , что ограничивает область применени устрюйства.Ci characterizing gradients different in direction are poorly distinguished by the eye. It is even more difficult to accurately determine the magnitude of the gradient, since it is necessary to measure the intensity of different color shades and compare it with a standard. Thus, the accuracy of determining the magnitude and direction of the refractive index gradient is insufficient, which limits the field of application of the device.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782705172A SU773428A1 (en) | 1978-12-26 | 1978-12-26 | Apparatus for investigating nonuniformities in transparent media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782705172A SU773428A1 (en) | 1978-12-26 | 1978-12-26 | Apparatus for investigating nonuniformities in transparent media |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU773428A1 true SU773428A1 (en) | 1980-10-23 |
Family
ID=20802092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782705172A SU773428A1 (en) | 1978-12-26 | 1978-12-26 | Apparatus for investigating nonuniformities in transparent media |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU773428A1 (en) |
-
1978
- 1978-12-26 SU SU782705172A patent/SU773428A1/en active
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