GB1249253A - Optical projector with photo-electric receiver - Google Patents
Optical projector with photo-electric receiverInfo
- Publication number
- GB1249253A GB1249253A GB2185069A GB2185069A GB1249253A GB 1249253 A GB1249253 A GB 1249253A GB 2185069 A GB2185069 A GB 2185069A GB 2185069 A GB2185069 A GB 2185069A GB 1249253 A GB1249253 A GB 1249253A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lens
- plate
- optical axis
- screws
- source
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/12—Beam splitting or combining systems operating by refraction only
- G02B27/123—The splitting element being a lens or a system of lenses, including arrays and surfaces with refractive power
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
- G01V8/14—Detecting, e.g. by using light barriers using one transmitter and one receiver using reflectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
1,249,253. Lamps. COMETA S.A.R.L. 29 April, 1969, No. 21850/69. Heading F4R. [Also in Division G1] An optical projector-receiver device comprises a composite lens 7 formed from two coaxial lenses 7a, 7b of different diameters, a light source 19 disposed laterally of the optical axis of the lens, a plane mirror 11 arranged to reflect the light from the source along the optical axis where it is formed into an emitted beam by the outer annular part of the lens, and a photoelectric receiver 12 disposed directly on the optical axis at the focus of the central part of the lens for detecting the returning beam after it has been reflected by a reflector spaced from the device. The mirror 11 is fixed by adhesive to an inclined wall 3 integral with a support-plate 1 which carries the lens, the holder 18 for the source 19 being adjustably secured to the plate by means of screws 17. The plate 1 is adjustably mounted by screws 21 on a back-plate 20 fixed inside a box 27, the box being closed by a cover 30 having a window 33 and a sealing strip 29. The lenses 7a, 7b are of plano-convex form and are cemented together with their plane faces in contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2185069A GB1249253A (en) | 1969-04-29 | 1969-04-29 | Optical projector with photo-electric receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2185069A GB1249253A (en) | 1969-04-29 | 1969-04-29 | Optical projector with photo-electric receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1249253A true GB1249253A (en) | 1971-10-13 |
Family
ID=10169867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2185069A Expired GB1249253A (en) | 1969-04-29 | 1969-04-29 | Optical projector with photo-electric receiver |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1249253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406352A (en) * | 2018-11-28 | 2019-03-01 | 苏州源慧达智能科技有限公司 | Light correlation oil smoke detection device with sheath gas shielded |
-
1969
- 1969-04-29 GB GB2185069A patent/GB1249253A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406352A (en) * | 2018-11-28 | 2019-03-01 | 苏州源慧达智能科技有限公司 | Light correlation oil smoke detection device with sheath gas shielded |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES473582A1 (en) | Signal lamp | |
| GB1533192A (en) | Smoke sensor | |
| ES294068Y (en) | SHIELDED LIGHTHOUSE FOR VEHICLES | |
| US2147156A (en) | Photoelectric apparatus | |
| GB1155544A (en) | Improvements relating to Signal Receivers | |
| GB1368360A (en) | Optical scanning apparatus | |
| GB1249253A (en) | Optical projector with photo-electric receiver | |
| GB1435282A (en) | Signal beacon | |
| GB1388342A (en) | Screening or aperture device for an x-ray apparatus | |
| GB1290021A (en) | ||
| GB1474370A (en) | Light detecting arrangements | |
| JPS5228335A (en) | Optical unit | |
| GB1455029A (en) | Apparatus for checking the line of sight of a telescope in relation to that of an infra-red goniometer | |
| GB1418924A (en) | Signal lamp | |
| SU565409A1 (en) | Thermovisor | |
| FR2222917A5 (en) | Optical head with lamp and photocell - separate half lenses with one for source one for cell | |
| SU667931A2 (en) | Hephelometer | |
| GB599578A (en) | Improvements relating to thermo-metric apparatus | |
| JPS57172254A (en) | Speed measuring device | |
| JPS5249851A (en) | Optical device | |
| GB1153384A (en) | Improvements relating to Optical Scanning Devices. | |
| JPS56168502A (en) | Film thickness gauge utilizing infrared ray | |
| GB1109172A (en) | Telescopic direction-finding apparatus | |
| FR2249591A5 (en) | Environment compensating differential refractometer - mirrors reflect rays from collimator to eyepiece | |
| GB1062987A (en) | Electro-optical scanning apparatus |