CN112782707B - Three-mode composite optical-mechanical system - Google Patents
Three-mode composite optical-mechanical system Download PDFInfo
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- CN112782707B CN112782707B CN201911092159.XA CN201911092159A CN112782707B CN 112782707 B CN112782707 B CN 112782707B CN 201911092159 A CN201911092159 A CN 201911092159A CN 112782707 B CN112782707 B CN 112782707B
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- rear group
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
- G01S7/481—Constructional features, e.g. arrangements of optical elements
- G01S7/4816—Constructional features, e.g. arrangements of optical elements of receivers alone
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The invention discloses a three-mode composite optical-mechanical system, which realizes the composite of a radar receiving mode and an infrared imaging mode by utilizing a card-type auxiliary mirror beam splitting mode; the laser emission mode and the infrared imaging mode are combined in a spectroscope light splitting mode. The invention not only can ensure large-view-field imaging, but also combines three modes, has compact optical machine structure and small occupied space envelope.
Description
Technical Field
The invention belongs to the technical field of photoelectric systems, and particularly relates to a multimode compound optical-mechanical system.
Background
Along with the development of science and technology, the development of material science, optical detection devices, optical processing capability, structural processing capability and the like is greatly achieved. Various photoelectric detection and identification technologies are widely applied to military industry and economic construction, and are one of important directions of development of countries around the world.
The three modes are an infrared imaging mode, a laser receiving mode and a radar receiving mode, and the three modes can be compounded to provide data streams with higher precision, wider range and larger space in the aspects of aircraft navigation, disaster relief, environment detection, terrain detection, air early warning, ground reconnaissance and the like.
The current multimode compound optical machine implementation method has a plurality of problems, such as: the defects of few compound modes, low compound degree, large occupied space, small compound lens imaging field of view and the like are overcome, and various factors cannot be well balanced.
Disclosure of Invention
The invention aims to provide a large-view-field compact optical-mechanical system compounded by an infrared imaging mode, a laser receiving mode and a radar receiving mode.
In order to solve the technical problems, the three-mode composite optical-mechanical system provided by the invention adopts the following technical scheme:
the three-mode composite optical-mechanical structure comprises a card-type main mirror, a card-type auxiliary mirror, a card-type compensation group, a telescopic rear group, an infrared objective rear group, a laser receiving rear group, a radar receiving rear group and a spectroscope.
The clamping type compensation group is used for compressing the angle and the height of the emergent light beam of the clamping type auxiliary mirror; the telescopic rear group collimates infrared beams emitted by the card type compensation group, so that each view field light path of infrared imaging is parallel light; the infrared objective rear group images infrared beams emitted by the telescopic rear group; and the laser receiving rear group converges laser beams emitted by the telescopic rear group.
The card-type auxiliary mirror and the card-type main mirror are coaxial and are positioned in front of the card-type main mirror, and the radar receiving rear group is coaxial with the card-type auxiliary mirror;
the clamping type compensation group, the telescopic rear group and the infrared objective rear group are sequentially arranged and coaxial; the spectroscope is positioned between the telescopic rear group and the infrared objective rear group and forms an included angle of 45 degrees with the main light path; the laser receiving rear group is positioned below the spectroscope and forms an included angle of 90 degrees with the main light path; the main light path is a central view field light path of infrared imaging, and passes through the centers of the clamp type main mirror, the clamp type auxiliary mirror, the clamp type compensation group, the telescopic rear group and the infrared objective rear group.
The infrared light path reaches the card-type auxiliary mirror through the reflection of the card-type main mirror, reaches the card-type compensation group through the reflection of the card-type auxiliary mirror, and then is imaged onto an infrared focal plane through the card-type compensation group, the telescopic rear group, the spectroscope light and the infrared objective lens rear group, so that an infrared imaging function is realized.
The laser beam reaches the card-type auxiliary mirror through the reflection of the card-type main mirror, reaches the card-type compensation group through the reflection of the card-type auxiliary mirror, then reaches the laser receiving rear group through the card-type compensation group and the telescopic rear group through the reflection of the spectroscope, reaches the laser receiving through the laser receiving rear group, and achieves the laser receiving function.
The radar wave reaches the card-type auxiliary mirror through the reflection of the card-type main mirror, and reaches the radar receiving surface through the card-type auxiliary mirror and the radar receiving rear group, so that the radar receiving function is realized.
Compared with the prior art, the invention has the following beneficial effects:
the radar receiving mode and the infrared imaging mode are compounded in a mode of utilizing the card-type auxiliary mirror to split light; the laser emission mode and the infrared imaging mode are combined in a spectroscope light splitting mode. The invention not only can ensure large-view-field imaging, but also combines three modes, has compact optical machine structure and small occupied space envelope.
The invention adopts the card type compensation group to compress the angle of the outgoing beam of the card type auxiliary mirror, corrects the residual aberration of the card type main mirror and the card type auxiliary mirror, and realizes the view field of the infrared imaging mode not less than 8 degrees.
The telescopic lens comprises a main lens, a secondary lens, a compensation group and a back group, wherein the back group is a telescopic lens, so that the outgoing beam of the back group is a parallel beam, and the image quality of an infrared imaging mode is not affected when the beam splitter angle is assembled and adjusted, thereby being beneficial to assembly and adjustment.
Drawings
Fig. 1 is a schematic diagram of a three-mode compound optical-mechanical system according to an embodiment of the invention.
1. Rear radar receiving group 2, clamp type auxiliary mirror 3, clamp type main mirror 4, clamp type compensation group 5, telescopic rear group 6, spectroscope 7, rear laser receiving group 8, rear infrared objective group 9, rear radar receiving group support 10, clamp type auxiliary mirror support 11, main frame 12, rear laser receiving group support 13, spectroscope support
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the attached drawings and specific embodiments.
Fig. 1 is a schematic diagram of a three-mode compound optical-mechanical system according to an embodiment of the invention. The optical-mechanical system comprises a main frame 11, a card-type main mirror 3, a card-type auxiliary mirror 2, a card-type compensation group 4, a telescopic rear group 5, an infrared objective rear group 8, a laser receiving rear group 7, a radar receiving rear group 1, a spectroscope 6, a spectroscope bracket 13, a radar receiving rear group bracket 9, a card-type auxiliary mirror bracket 10 and a laser receiving rear group bracket 12.
The clamping type compensation group 4 consists of two positive lenses and is used for compressing the angle and the height of the emergent light beam of the clamping type auxiliary mirror; the telescopic rear group 5 consists of two positive lenses, and collimates the infrared light beams emitted by the card type compensation group 4 to enable each view field light path of infrared imaging to be parallel light; the infrared objective rear group 8 consists of two positive lenses and images infrared beams emitted by the telescopic rear group 5; the rear laser receiving group 7 consists of two positive lenses and converges laser beams emitted by the rear telescopic group 5.
The clamp type main mirror 3 is vertically arranged in a concave groove of the main frame 11, and the clamp type compensation group 4, the telescopic rear group 5 and the infrared objective rear group 8 are sequentially fixed in a barrel-shaped structure in the middle of the main frame 11 in a pressing ring mode through mechanical cooperation, so that coaxiality requirements of the mirror groups are guaranteed through mechanical processing. The main frame 11 is a cylindrical structure passing through the clip-type main mirror 3.
The card-type secondary mirror 2 is mounted on a radar receiving rear group bracket 9, then is connected to the concave groove side of the main frame 11 through a card-type secondary mirror bracket 10, and the optical coaxiality and parallelism requirements of the card-type secondary mirror 2 and the card-type main mirror 3 are ensured through machining precision.
The radar receiving rear group 1 is fixed on a radar receiving rear group support 9 in a fixed mode of a pressing ring through mechanical cooperation, and the radar receiving rear group 1 and the clamping type auxiliary mirror 2 are ensured to be coaxial.
The upper cylinder wall and the lower cylinder wall of the main frame 11, which are arranged between the telescopic rear group 5 and the infrared objective rear group 8, are hollow. The two ends of the laser receiving rear group 7 are fixed on the laser receiving rear group support 12 in a pressing ring mode through mechanical cooperation, the laser receiving rear group support 12 is fixed on the hollow lower cylinder wall of the cylinder structure, and an included angle of 90 degrees between the optical axis of the laser receiving rear group 7 and a main light path is ensured through mechanical processing. The main light path is a central view field light path of infrared imaging, and passes through the centers of the clamp type main mirror 3, the clamp type auxiliary mirror 2, the clamp type compensation group 4, the telescopic rear group 5 and the infrared objective rear group 8.
The spectroscope 6 is fixedly arranged on the spectroscope support 13 and is positioned in the barrel-shaped structure of the main frame 11, the lower end of the spectroscope support 13 is fixed at the hollow lower barrel wall opening of the barrel-shaped structure of the main frame 11, the upper end of the spectroscope support 13 is fixedly arranged at the hollow upper barrel wall opening of the barrel-shaped structure of the main frame 11, and the spectroscope 6 and a main light path form an included angle of 45 degrees.
The clamping type auxiliary mirror support 10 and the laser receiving group support 12 are made of silicon carbide materials, so that the influence on a radar receiving mode is reduced.
The infrared light path reaches the card-type auxiliary mirror 2 through the reflection of the card-type main mirror 3, reaches the card-type compensation group 4 through the reflection of the card-type auxiliary mirror 2, and then is imaged onto an infrared focal plane through the card-type compensation group 4, the telescopic rear group 5, the spectroscope light 6 and the infrared objective rear group 8, so that an infrared imaging function is realized.
The laser beam reaches the card-type auxiliary mirror 2 through the reflection of the card-type main mirror 3, reaches the card-type compensation group 4 through the reflection of the card-type auxiliary mirror 2, then reaches the laser receiving rear group 7 through the reflection of the card-type compensation group 4 and the telescopic rear group 5 by the spectroscope 6, reaches the laser receiving through the laser receiving rear group 7, and achieves the laser receiving function.
The radar wave reaches the card-type auxiliary mirror 2 through the reflection of the card-type main mirror 3, and reaches the radar receiving surface through the card-type auxiliary mirror 2 and the radar receiving rear group 1, so that the radar receiving function is realized.
Claims (8)
1. The three-mode composite optical-mechanical system is characterized by comprising a card-type main mirror (3), a card-type auxiliary mirror (2), a card-type compensation group (4), a telescopic rear group (5), an infrared objective rear group (8), a laser receiving rear group (7), a radar receiving rear group (1) and a spectroscope (6);
the clamping type compensation group (4) is used for compressing the angle and the height of the emergent light beam of the clamping type auxiliary mirror (2); the telescopic rear group (5) collimates infrared light beams emitted by the card type compensation group (4) to enable light paths of each view field of infrared imaging to be parallel light; the infrared objective rear group (8) images infrared beams emitted by the telescopic rear group (5); the laser receiving rear group (7) converges laser beams emitted by the telescopic rear group (5);
the card-type auxiliary mirror (2) is coaxial with the card-type main mirror (3) and is positioned in front of the card-type main mirror (3), and the radar receiving rear group (1) is coaxial with the card-type auxiliary mirror (2);
the clamping type compensation group (4), the telescopic rear group (5) and the infrared objective rear group (8) are sequentially arranged and coaxial; the spectroscope (6) is positioned between the telescopic rear group (5) and the infrared objective rear group (8) and forms an included angle of 45 degrees with the main light path; the laser receiving rear group (7) is positioned below the spectroscope (6), and an included angle of 90 degrees is formed between the optical axis of the laser receiving rear group (7) and the main light path; the main light path is a central view field light path of infrared imaging, and passes through the centers of the clamp type main mirror (3), the clamp type auxiliary mirror (2), the clamp type compensation group (4), the telescopic rear group (5) and the infrared objective rear group (8);
the infrared light path reaches the card-type auxiliary mirror (2) through the reflection of the card-type main mirror (3), reaches the card-type compensation group (4) through the reflection of the card-type auxiliary mirror (2), and then is imaged onto an infrared focal plane through the card-type compensation group (4), the telescopic rear group (5), the spectroscope (6) and the infrared objective rear group (8), so that an infrared imaging function is realized;
the laser beam reaches the card-type auxiliary mirror (2) through the reflection of the card-type main mirror (3), reaches the card-type compensation group (4) through the reflection of the card-type auxiliary mirror (2), then reaches the laser receiving rear group (7) through the reflection of the beam splitter (6) through the card-type compensation group (4) and the telescopic rear group (5), and reaches the laser receiving through the laser receiving rear group (7), so that the laser receiving function is realized;
the radar wave reaches the card-type auxiliary mirror (2) through the reflection of the card-type main mirror (3), and reaches the radar receiving surface through the card-type auxiliary mirror (2) and the radar receiving rear group (1), so that the radar receiving function is realized.
2. The three-mode compound optical-mechanical system as claimed in claim 1, wherein the card-type compensation group (4), the telescopic rear group (5), the laser receiving rear group (7) and the infrared objective rear group (8) are composed of two positive lenses.
3. The three-mode compound optical-mechanical system as claimed in claim 1, further comprising a main frame (11), wherein the card-type main mirror (3) is vertically installed in a concave groove of the main frame (11), and the card-type compensation group (4), the telescopic rear group (5) and the infrared objective rear group (8) are coaxially fixed in sequence in a barrel-type structure in the middle of the main frame (11), and the barrel-type structure passes through the card-type main mirror (3).
4. A three-mode compound optical-mechanical system as in claim 3, wherein the cylinder structure is hollow at the upper and lower cylinder walls between the rear group (5) of the telescope and the rear group (8) of the infrared objective;
the two ends of the laser receiving rear group (7) are fixed on a laser receiving rear group bracket (12), the laser receiving rear group bracket (12) is fixed on the hollow lower cylinder wall of the cylinder structure, and an included angle of 90 degrees is formed between the optical axis of the laser receiving rear group (7) and the main light path; the spectroscope (6) is fixedly arranged on the spectroscope support (13) and is positioned in the barrel-shaped structure of the main frame (11), the lower end of the spectroscope support (13) is fixed at the hollow lower barrel wall opening of the barrel-shaped structure of the main frame (11), the upper end of the spectroscope support (13) is fixedly arranged at the hollow upper barrel wall opening of the barrel-shaped structure of the main frame (11), and the spectroscope (6) and a main light path form a 45-degree included angle.
5. A three-mode compound optical-mechanical system as in claim 4 wherein the laser receiving rear group mount (12) is of silicon carbide material.
6. A three-mode compound optical-mechanical system as claimed in claim 3, further comprising a radar receiving rear group bracket (9), a clip-on secondary mirror bracket (10), wherein the clip-on secondary mirror (2) is mounted on the radar receiving rear group bracket (9) and then connected to the concave groove side of the main frame (11) through the clip-on secondary mirror bracket (10), and the clip-on secondary mirror (2) is coaxial with the clip-on main mirror (3).
7. A three-mode compound optical-mechanical system as in claim 6, characterized in that said radar-receiving rear group (1) is fixed to a radar-receiving rear group support (9) coaxial with the card-type secondary mirror (2).
8. A three-mode compound optical-mechanical system as in claim 6, wherein the clip-on secondary mirror support (10) is of silicon carbide material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092159.XA CN112782707B (en) | 2019-11-11 | 2019-11-11 | Three-mode composite optical-mechanical system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911092159.XA CN112782707B (en) | 2019-11-11 | 2019-11-11 | Three-mode composite optical-mechanical system |
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| CN112782707A CN112782707A (en) | 2021-05-11 |
| CN112782707B true CN112782707B (en) | 2023-07-11 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217678A (en) * | 2013-04-01 | 2013-07-24 | 中国科学院合肥物质科学研究院 | Laser radar receiving system |
| CN104375149A (en) * | 2014-11-18 | 2015-02-25 | 中国科学院合肥物质科学研究院 | Device capable of achieving turbulence profile laser radar image surface temperature drift compensation |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6606066B1 (en) * | 2001-10-29 | 2003-08-12 | Northrop Grumman Corporation | Tri-mode seeker |
| US6924772B2 (en) * | 2003-10-30 | 2005-08-02 | Northrop Grumman Corporation | Tri-mode co-boresighted seeker |
| US8829404B1 (en) * | 2010-03-26 | 2014-09-09 | Raytheon Company | Multi-mode seekers including focal plane array assemblies operable in semi-active laser and image guidance modes |
| CN201964957U (en) * | 2011-01-27 | 2011-09-07 | 北京空间机电研究所 | Reverse blending multispectral imaging system |
| US9291429B2 (en) * | 2013-04-24 | 2016-03-22 | Raytheon Company | Multimode shared aperture seeker |
| CN107703643A (en) * | 2017-11-03 | 2018-02-16 | 中国运载火箭技术研究院 | A kind of high-resolution multiband optics complex imaging detection system and its method |
| CN108205194B (en) * | 2017-12-13 | 2020-07-17 | 北京华航无线电测量研究所 | Visible light and infrared composite system based on spherical concentric primary mirror |
| CN108152973B (en) * | 2017-12-13 | 2020-07-17 | 北京华航无线电测量研究所 | Visible light and medium wave infrared common-caliber composite optical system |
| CN110031980A (en) * | 2019-04-04 | 2019-07-19 | 中国科学院光电技术研究所 | A kind of " spectrum structure of four photosynthetic one " |
| CN109975961A (en) * | 2019-04-18 | 2019-07-05 | 哈尔滨新光光电科技股份有限公司 | A kind of Shared aperture complex imaging optical system of visible light and LONG WAVE INFRARED |
-
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- 2019-11-11 CN CN201911092159.XA patent/CN112782707B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217678A (en) * | 2013-04-01 | 2013-07-24 | 中国科学院合肥物质科学研究院 | Laser radar receiving system |
| CN104375149A (en) * | 2014-11-18 | 2015-02-25 | 中国科学院合肥物质科学研究院 | Device capable of achieving turbulence profile laser radar image surface temperature drift compensation |
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