JPS5730915A - Difference absorption laser radar - Google Patents
Difference absorption laser radarInfo
- Publication number
- JPS5730915A JPS5730915A JP8612380A JP8612380A JPS5730915A JP S5730915 A JPS5730915 A JP S5730915A JP 8612380 A JP8612380 A JP 8612380A JP 8612380 A JP8612380 A JP 8612380A JP S5730915 A JPS5730915 A JP S5730915A
- Authority
- JP
- Japan
- Prior art keywords
- laser
- transparent body
- emitted
- polarization component
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/21—Polarisation-affecting properties
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spectrometry And Color Measurement (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
PURPOSE:To eliminate the disturbance from the outside by emitting two light beams having different wavelengths and polarization components from two lasers in the same transmitting and receiving telescopes at the same time, and receiving them with the polarization components while they are separated from each other. CONSTITUTION:The laser light, which has a first polarization component and wavelength and is emitted from a first laser, is transmitted through a transparent body 3. The laser light, which has a second polarization component and wavelength and is emitted from a second laser, is reflected by the transparent body 3. Said transparent body 3 is arranged on a laser light paths of the first and second lasers. In this case, the first and second lasers 1 and 2 and the transparent body 3 are so arranged that the laser light beams emitted through the transparent body 3 pass the same optical path. On the same optical returning path, along which emitted light beams pass a space to be measured and return, transparent bodies 4 and 5, which transmit a laser beam having one polarization component and reflect the other laser beam having the other polarization component, are provided. The transmitted light and the reflected light are detected by detectors D1 and D2, respectively, and the detected outputs are compared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8612380A JPS5730915A (en) | 1980-06-24 | 1980-06-24 | Difference absorption laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8612380A JPS5730915A (en) | 1980-06-24 | 1980-06-24 | Difference absorption laser radar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5730915A true JPS5730915A (en) | 1982-02-19 |
| JPH0118367B2 JPH0118367B2 (en) | 1989-04-05 |
Family
ID=13877919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8612380A Granted JPS5730915A (en) | 1980-06-24 | 1980-06-24 | Difference absorption laser radar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5730915A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5487588A (en) * | 1977-12-24 | 1979-07-12 | Fujitsu Ltd | Infrared spectral analytical apparatus |
-
1980
- 1980-06-24 JP JP8612380A patent/JPS5730915A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5487588A (en) * | 1977-12-24 | 1979-07-12 | Fujitsu Ltd | Infrared spectral analytical apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0118367B2 (en) | 1989-04-05 |
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