DE3110981A1 - Optical member for a lidar system - Google Patents
Optical member for a lidar systemInfo
- Publication number
- DE3110981A1 DE3110981A1 DE19813110981 DE3110981A DE3110981A1 DE 3110981 A1 DE3110981 A1 DE 3110981A1 DE 19813110981 DE19813110981 DE 19813110981 DE 3110981 A DE3110981 A DE 3110981A DE 3110981 A1 DE3110981 A1 DE 3110981A1
- Authority
- DE
- Germany
- Prior art keywords
- lidar system
- optical member
- optical body
- optical
- infrared
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 16
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 3
- 239000011241 protective layer Substances 0.000 claims abstract description 3
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 3
- 239000011734 sodium Substances 0.000 claims abstract description 3
- 238000010276 construction Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 159000000001 potassium salts Chemical class 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 abstract 1
- 239000012780 transparent material Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/02—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of crystals, e.g. rock-salt, semi-conductors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Lenses (AREA)
Abstract
Description
Optischer Körper für ein Lidar-SystemOptical body for a lidar system
Die Erfindung bezieht sich auf einen optischen Körper für ein Lidar-System, bei dem ein optisches Element als Spiegelobjektiv in Telekonstruktion ausgebildet ist und die refraktiv wirkende asphärische Fläche fertig geformt ist.The invention relates to an optical body for a lidar system, in which an optical element is designed as a mirror lens in tele construction and the refractive aspherical surface is fully formed.
Solche optische Körper sind durch die Anmelderin bereits vorgeschlagen worden. Hierbei handelt es sich einmal um solche Körper, die gleichzeitig als justierfreie Träger für einen Lasersender und eine Empfangsdiode, einschließlich deren Elektronik, ausgebildet sind und andererseits durch Strangpreßverfahren im schwierigen asphärischen Bearbeitungsteil bereits fertig geformt hergestellt sind.Such optical bodies have already been proposed by the applicant been. This concerns on the one hand those bodies which at the same time act as adjustment-free Carrier for a laser transmitter and a receiving diode, including their electronics, are formed and on the other hand by extrusion in the difficult aspherical Machining part are already made ready-formed.
Auf diesen Ausführungsformen baut die vorliegende Erfindung auf und ihr liegt die Aufgabe zugrunde in einfachster und für die Massenfertigung geeigneter Weise ein Lidarsystem für fernes Infrarot ausbilden zu können.The present invention is based on these embodiments it is based on the task of the simplest and most suitable for mass production Way to be able to train a lidar system for far infrared.
Diese Aufgabe wird durch die im Anspruch aufgezeigten Maßnahmen in überraschend einfacher Weise gelöst. Nachfolgend wird ein Ausführungsbeispiel beschrieben und in der einzigen Figur der Zeichnung dargestellt.This task is achieved by the measures outlined in the claim in solved in a surprisingly simple way. An exemplary embodiment is described below and shown in the single figure of the drawing.
Das in der Figur gezeigte Ausführungsbeispiel ist so geformt, daß es gleichzeitig den justierfreien Träger für den Lasersender, die Empfangsdiode und deren Elektronik bildet. Die hierfür vorgesehenen Aussparungen können natürlich entfallen, wenn ein anderer Geräteaufbau vorgesehen ist, In diesem Falle wird also die sphärische Fläche 12 durchgehend sein, die bis auf einen bestimmten Bereich an der optischen Achse 20 verspiegelt ist.The embodiment shown in the figure is shaped so that it at the same time the adjustment-free vehicle for the laser transmitter that Receiving diode and its electronics forms. The recesses provided for this can of course be omitted if a different device structure is provided, in this one So the spherical surface 12 will be continuous, except for a certain case Area on the optical axis 20 is mirrored.
Um nun diesen optischen Körper 10 in einem Lidar-System für fernes Infrarot einsetzen zu können, wird vorgeschlagen, ihn aus einem infrarotdurchlässigen Material, wie Salzen - vorwiegend Natrium- oder Kaliumsalzen -, zu pressen. Hierbei wird die schwierig zu bearbeitende asphärische Fläche 13 bereits fertig erhalten. Der nachbearbeitete optische Körper wird anschließend mit den erforderlichen Spiegelschichten 12 und einer Schutzschicht 11 versehen.To now this optical body 10 in a lidar system for distant To be able to use infrared, it is proposed to make it from an infrared-permeable Material such as salts - mainly sodium or potassium salts - to be pressed. Here the aspherical surface 13, which is difficult to machine, is already obtained. The post-processed optical body is then coated with the required mirror layers 12 and a protective layer 11 is provided.
Durch diese Maßnahmen ist es nun möglich, Lidaroptiken für den Infrarotbereich äußerst günstig und aufwandslos in Massenfabrikation herzustellen und die bisher erforderlichen großen Objektive, die außerdem noch genau einjustiert werden müssen, zu ersetzen.With these measures it is now possible to use lidar optics for the infrared range mass-produced extremely cheaply and effortlessly, and so far required large lenses, which also have to be precisely adjusted, to replace.
Ein solcher optischer Körper optimiert allein schon aufgrund seines Gewichts und seines Raumbedarfs Lidar-Systeme für die verschiedensten Zwecke, insbesondere bei waffentechnischen Einsätzen zum einmaligen Gebrauch. LeerseiteSuch an optical body is optimized simply because of its Weight and its space requirements Lidar systems for various purposes, in particular for weapon operations for single use. Blank page
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813110981 DE3110981C2 (en) | 1981-03-20 | 1981-03-20 | Optical body for a lidar system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813110981 DE3110981C2 (en) | 1981-03-20 | 1981-03-20 | Optical body for a lidar system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3110981A1 true DE3110981A1 (en) | 1982-10-14 |
| DE3110981C2 DE3110981C2 (en) | 1983-06-30 |
Family
ID=6127856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813110981 Expired DE3110981C2 (en) | 1981-03-20 | 1981-03-20 | Optical body for a lidar system |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3110981C2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022129602A1 (en) * | 2022-11-09 | 2024-05-16 | Ifm Electronic Gmbh | Cassegrain arrangement for an optical distance measuring system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2512257A (en) * | 1947-01-09 | 1950-06-20 | Us Sec War | Water-resistant compound lens transparent to infrared |
| US2642367A (en) * | 1947-01-09 | 1953-06-16 | Us Sec War | Method of protecting lenses |
| DE2133129A1 (en) * | 1971-07-02 | 1973-01-25 | Siemens Ag | HYGROSCOPIC CRYSTAL WITH A GOOD ADHESIVE TOP LAYER, PREFERABLY A COMPENSATION OR MIRROR LAYER |
| US3959548A (en) * | 1974-10-16 | 1976-05-25 | Honeywell Inc. | Graded composition coatings for surface protection of halide optical elements |
| DE2946111A1 (en) * | 1979-11-15 | 1981-05-27 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Optical element for lidar system - forms extremely short length cassegrain telescope with laser emitter combined in rugged housing |
-
1981
- 1981-03-20 DE DE19813110981 patent/DE3110981C2/en not_active Expired
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2512257A (en) * | 1947-01-09 | 1950-06-20 | Us Sec War | Water-resistant compound lens transparent to infrared |
| US2642367A (en) * | 1947-01-09 | 1953-06-16 | Us Sec War | Method of protecting lenses |
| DE2133129A1 (en) * | 1971-07-02 | 1973-01-25 | Siemens Ag | HYGROSCOPIC CRYSTAL WITH A GOOD ADHESIVE TOP LAYER, PREFERABLY A COMPENSATION OR MIRROR LAYER |
| US3959548A (en) * | 1974-10-16 | 1976-05-25 | Honeywell Inc. | Graded composition coatings for surface protection of halide optical elements |
| DE2946111A1 (en) * | 1979-11-15 | 1981-05-27 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Optical element for lidar system - forms extremely short length cassegrain telescope with laser emitter combined in rugged housing |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3110981C2 (en) | 1983-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8320 | Willingness to grant licences declared (paragraph 23) | ||
| 8339 | Ceased/non-payment of the annual fee |