CN101630059B - Embedded combined objective and preparation method thereof - Google Patents
Embedded combined objective and preparation method thereof Download PDFInfo
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- CN101630059B CN101630059B CN2009100657525A CN200910065752A CN101630059B CN 101630059 B CN101630059 B CN 101630059B CN 2009100657525 A CN2009100657525 A CN 2009100657525A CN 200910065752 A CN200910065752 A CN 200910065752A CN 101630059 B CN101630059 B CN 101630059B
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- object lens
- lens body
- lens
- optical alignment
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Abstract
The invention discloses an embedded combined objective, comprising an objective body, wherein a coaxial through-hole is arranged at the centre of the objective body; an embedded lens coaxially arranged with the optical axis of the objective body is built inside the through-hole; the external wall of the embedded lens is closely inosculated and combined with the wall of the through-hole; the surfaces of at least one side of the embedded lens and the objective body have the same radius of curvature direction yet different magnitudes, and the vertexes of the surfaces of at least one side of the embedded lens and the objective body are coincided. The invention also discloses two preparation methods of the embedded combined objective. In the embedded combined objective of the invention, the embedded lens is arranged at the centre of the objective body; in the broad field view of an infrared dual view field optical system, the imaging of the middle part of the embedded combined objective is provided by the embedded lens; because the directions of the radius of curvature on the surfaces of at least one side of the embedded lens and the objective body are the same and the sizes are different, the embedded lens and the objective body possess different optical characteristics, preventing the formation of narcissus during imaging and thus improving the quality of imaging.
Description
Technical field
The present invention relates to a kind of embedded combined objective, also relate to a kind of preparation method of said composition mirror simultaneously, belong to optical technical field.
Background technology
At present, the employed object lens of The Infrared Double Fields Optical System under some occasion are simple lens, during imaging, two visual fields in the optical system utilize this simple lens and signal-lens center section respectively, because the Single-lens Optical feature of integral structure is identical to the width visual field, therefore utilize pars intermedia branch to make to produce on the detector plane cold picture when wide view field imaging, i.e. blackspot influences the image quality of optical system.At present usually the method for institute's circuit that adopts correction is removed cold picture, but does not tackle the problem at its root, and the effect of cold picture elimination is relatively poor.
Summary of the invention
The purpose of this invention is to provide a kind of embedded combined objective that can eliminate cold picture in the The Infrared Double Fields Optical System.
Another object of the present invention provides the preparation method of this embedded combined objective.
In order to realize above purpose, the technical scheme that embedded combined objective of the present invention adopted is: a kind of embedded combined objective, comprise the object lens body, described object lens body center is provided with coaxial through hole, be embedded with the embedding lens that are provided with object lens body light shaft coaxle at this through hole internal fixation, the periphery wall of these embedding lens is that tight connecting cooperates with the hole wall of through hole; Described embedding lens are identical with the radius-of-curvature direction on the surface of at least one side of object lens body, and size is inequality, and the embedding lens overlap with the summit on the surface of at least one side of object lens body.
The surface of described embedding lens and object lens body one side is convex surface, and this embeds the radius-of-curvature of the radius-of-curvature of lens convex surface less than object lens body convex surface.
The surface of described embedding lens and object lens body one side is concave surface, and this embeds the radius-of-curvature of the radius-of-curvature of concave lens surface greater than object lens body concave surface.
The hole wall of described embedding lens and object lens body through hole is fixing for bonding.
The edge thickness of described embedding lens is less than the axial length of the through hole hole wall of object lens body.
Embedded combined objective of the present invention, be embedded with embedding lens at the center of object lens body, in the wide visual field of The Infrared Double Fields Optical System, the center section of embedded combined objective is provided as picture by embedding lens, since embed the radius-of-curvature direction of lens and object lens surface identical, vary in size, have the optical signature different, when imaging, can not produce cold picture, therefore improved the quality of imaging with the object lens body.
Embedded combined objective of the present invention is made up of object lens body and embedding lens.The intersection point of lens sphere and optical axis is the summit, and for embedding lens, its summit is for embedding the intersection point of lens spheres (convex surface or concave surface) and optical axis, and this intersection point is an entity intersection point; And for the object lens body, its summit also is the intersection point of object lens body sphere (convex surface or concave surface) and optical axis, but because object lens body center offers coaxial through hole, then this intersection point is an empty body intersection point, so the summit of object lens body is an empty summit.
Because the summit of the object lens body of embedded combined objective of the present invention is empty summit, when the embedding lens embedded installation, the summit that embeds lens was difficult to realize overlapping accurately with the empty summit of object lens body, so need adopt following installation method to install.The present invention is directed to different embedded combined objectives two preparation methods are provided.
Be convex surface and embed the embedded combined objective of the radius-of-curvature of lens convex surface less than the radius-of-curvature of object lens body convex surface for the surface that embeds lens and object lens body one side, the preparation method of employing is as follows:
1) is equipped with the optical alignment model according to object lens system with convex surface, this optical alignment model is the lens with concave surface, the radius-of-curvature equal and opposite in direction of the radius-of-curvature of this concave lens surface and object lens body convex surface, and the external diameter of optical alignment model is identical with the external diameter of object lens body;
2) convex surface of object lens body and the concave surface coaxial cable of optical alignment model are fitted mutually, and make the cylindrical alignment of object lens body and optical alignment model;
3) the embedding lens that will have a convex surface are packed in the through hole of object lens body with the bonding fixed form, and the summit that embeds the lens convex surface are pushed up with the summit of optical alignment model concave surface close;
4) behind the adhesive solidification, promptly obtain embedded combined objective.
Be concave surface and embed the embedded combined objective of the radius-of-curvature of concave lens surface greater than the radius-of-curvature of object lens body concave surface for the surface that embeds lens and object lens body one side, the preparation method of employing is as follows:
1) be equipped with the optical alignment model according to the object lens system with concave surface, this optical alignment model is the lens with convex surface, the radius-of-curvature equal and opposite in direction of the radius-of-curvature of this lens convex surface and object lens body concave surface, and the external diameter of optical alignment model is identical with the object lens body diameter;
2) concave surface of object lens body and the convex surface coaxial cable of optical alignment model are fitted mutually, and make the cylindrical alignment of object lens body and optical alignment model;
3) the embedding lens that will have a concave surface are packed in the through hole of object lens body with the bonding fixed form, and the summit that embeds concave lens surface are pushed up with the summit of optical alignment model convex surface close;
4) behind the adhesive solidification, promptly obtain embedded combined objective.
The system of above-mentioned embedded combined objective two Preparation Methods have all utilized the optical alignment model that the empty summit of object lens body is positioned, in position fixing process, the cylindrical of optical alignment model with the object lens body alignd, and two the opposite each other surperficial coaxial cables of radius-of-curvature direction on object lens body and the optical alignment model are fitted mutually, the empty summit of object lens body is overlapped with the summit of optical alignment model (summit of optical alignment model is itself and the intersection point of object lens body bonding surfaces with optical axis), realized the conversion on the empty summit of object lens body, and the optical axis of object lens body also with the light shaft coaxle of optical alignment model; To embed lens then packs in the through hole at object lens body center, the summit of embedding lens and the top, summit of optical alignment model are closed, the top close optical axis that the back embeds lens immediately with the light shaft coaxle of optical alignment model, therefore realized that the summit that embeds lens overlaps with the empty summit of object lens body, and embed the optical axis of lens and the light shaft coaxle of object lens body, finished embedded combined objective of the present invention and installed accurately, the precision of installation is higher, and simple, convenient.In addition, optical alignment model of the present invention is an optical lens, can aim at auxiliary positioning to embedding lens and optical alignment model by universal tool-measuring microscope when the embedding lens are installed, and has further improved the precision of installing.
Description of drawings
Fig. 1 is the structural representation of embedded combined objective;
Fig. 2 is the structural representation of object lens body;
Fig. 3 is for embedding the structural representation of lens;
Fig. 4 is the synoptic diagram of embodiment 1;
Fig. 5 is the synoptic diagram of embodiment 2.
Embodiment
Embodiment 1
As Fig. 1,2, shown in 3, embedded combined objective of the present invention comprises object lens body 1, this object lens body 1 center is provided with coaxial through hole 3, fixedly is embedded with the embedding lens 2 that are provided with object lens body 1 light shaft coaxle by bonding mode in this through hole 3, and the periphery wall of these embedding lens is that tight connecting cooperates with the hole wall of through hole, the edge thickness of described embedding lens 2 guarantees that less than the axial length of through hole 3 hole walls of object lens body 1 edge that embeds lens embeds in the through hole fully; The surface of described embedding lens and object lens body one side is convex surface, and this summit 5 that embeds the lens convex surface overlaps with the empty summit 4 of object lens body convex surface, shown among the figure 10; The radius-of-curvature of described embedding lens 2 convex surfaces is less than the radius-of-curvature of object lens body 1 convex surface.
The preparation method of the embedded combined objective of present embodiment is as follows:
1) preparation has the object lens body of convex surface and embeds lens, offers coaxial through hole at the center of object lens body;
2) be equipped with the optical alignment model according to the object lens system, this optical alignment model is a single negative lens, the radius-of-curvature equal and opposite in direction of the radius-of-curvature of its concave surface and object lens body convex surface, and its external diameter is identical with the object lens body;
3) optical alignment model concave surface is kept flat up and fix, again with the surperficial wiped clean of object lens body and optical alignment model, with placing on the optical alignment model of object lens body, make the cylindrical alignment of object lens body and optical alignment model, and the convex surface of object lens body and optical alignment model upper recess surface coaxial cable are fitted mutually, this moment, the empty summit of object lens body convex surface overlapped with the summit of optical alignment model concave surface, realized the accurate transformation on the empty summit of object lens body; Fixing object lens body guarantees that the object lens body can not slide on the optical alignment model then;
4) will embed the convex surface wiped clean of lens, on the hole wall of the through hole of object lens body, evenly be coated with one deck epoxide-resin glue, with embed the lens convex surface down slowly, align in the through hole that pushes the object lens body, the summit of embedding lens convex surface and the top, summit of optical alignment model concave surface are closed, whether the gap that measure to embed then between the hole wall of lens periphery wall and object lens body through hole equates, proofread and correct again as unequal then the needs, the summit that embed lens this moment promptly overlaps with the empty summit of object lens body, has realized that embedded combined objective installs accurately;
5) treat the epoxide-resin glue spontaneous curing after, the embedded combined objective that obtains taken off from the optical alignment model get final product.
As shown in Figure 4, the concave surface of the convex surface of object lens body and optical alignment model 6 is fitted mutually, and the cylindrical of object lens body and optical alignment model alignment, this moment, the empty summit of object lens body convex surface overlapped with the summit of optical alignment model concave surface, shown among the figure 7, only the embedding lens need be pushed the through hole of object lens body then, the summit of embedding lens and the top, summit of optical alignment model are closed, shown among the figure 7, can realize embedding the accurate installation of lens.
Embodiment 2
The structure of the embedded combined objective of present embodiment is with embodiment 1, difference is: as shown in Figure 5, the surface of described embedding lens and object lens body one side is concave surface, the summit that embeds concave lens surface overlaps with the empty summit of object lens body concave surface, and the radius-of-curvature of described embedding concave lens surface is greater than the radius-of-curvature of object lens body concave surface.
The preparation method of the embedded combined objective of present embodiment is as follows:
1) preparation object lens body and embedding lens are offered coaxial through hole at the center of object lens body;
2) be equipped with the optical alignment model according to the object lens system, this optical alignment model is a single-positive-lens, the radius-of-curvature equal and opposite in direction of the radius-of-curvature of its convex surface and object lens body concave surface, and its external diameter is identical with the object lens body;
3) optical alignment model convex surface is kept flat up and fix, again with the surperficial wiped clean of object lens body and optical alignment model, the object lens body is placed on the optical alignment model, make the cylindrical alignment of object lens body and optical alignment model, and the convex surface coaxial cable is fitted mutually on the concave surface of object lens body and the optical alignment model, this moment, the empty summit of object lens body overlapped with the summit of optical alignment model, realized the accurate transformation on the empty summit of object lens body; Fixing object lens body guarantees that the object lens body can not slide on the optical alignment model then;
4) will embed the concave surface wiped clean of lens, on the hole wall of the through hole of object lens body, evenly be coated with one deck epoxide-resin glue, with embed lens slowly, align in the through hole that pushes the object lens body, the summit of embedding lens and the top, summit of optical alignment model are closed, whether the gap that measure to embed then between the hole wall of lens periphery wall and object lens body through hole equates, proofread and correct again as unequal then the needs, the summit that embed lens this moment promptly overlaps with the empty summit of object lens body, has realized that embedded combined objective installs accurately;
5) treat the epoxide-resin glue spontaneous curing after, the embedded combined objective that obtains taken off from the optical alignment model get final product.
As shown in Figure 5, the convex surface of the concave surface of object lens body and optical alignment model 8 is fitted mutually, and the cylindrical of object lens body and optical alignment model alignment, this moment, the empty summit of object lens body concave surface overlapped with the summit of optical alignment model convex surface, shown among the figure 9, only the embedding lens need be pushed the through hole of object lens body then, the summit of embedding lens and the top, summit of optical alignment model are closed, shown among the figure 9, can realize embedding the accurate installation of lens.
The embedding lens of embedded combined objective of the present invention are identical with object lens body center thickness, the summit that then embeds the surface of lens and object lens body both sides can overlap simultaneously, embedded combined objective for said structure, as long as satisfy the magnitude relationship that embeds lens surface curvature radius and object lens surface radius-of-curvature, all can adopt preparation method provided by the invention.
Embodiments of the invention are the non-limiting technical scheme of the present invention in order to explanation only; the surface that wherein embeds the opposite side of lens and object lens body summit coincidence can be concave surface; also can be convex surface; also can be the plane; all can realize purpose of the present invention; overlap so long as embed the summit on the surface of lens and object lens body one side, should fall into protection scope of the present invention.
Claims (6)
1. embedded combined objective, comprise the object lens body, it is characterized in that: described object lens body center is provided with coaxial through hole, is embedded with the embedding lens that are provided with object lens body light shaft coaxle at this through hole internal fixation, and the periphery wall of these embedding lens is that tight connecting cooperates with the hole wall of through hole; Described embedding lens are identical with the radius-of-curvature direction on the surface of at least one side of object lens body, and size is inequality, and the embedding lens overlap with the summit on the surface of at least one side of object lens body; The edge thickness of described embedding lens is less than the axial length of the through hole hole wall of object lens body.
2. embedded combined objective according to claim 1 is characterized in that: the surface of described embedding lens and object lens body one side is convex surface, and this embeds the radius-of-curvature of the radius-of-curvature of lens convex surface less than object lens body convex surface.
3. embedded combined objective according to claim 1 is characterized in that: the surface of described embedding lens and object lens body one side is concave surface, and this embeds the radius-of-curvature of the radius-of-curvature of concave lens surface greater than object lens body concave surface.
4. according to the arbitrary described embedded combined objective of claim 1-3, it is characterized in that: the hole wall of described embedding lens and object lens body through hole is fixing for bonding.
5. preparation method of embedded combined objective according to claim 1 is characterized in that: may further comprise the steps:
1) is equipped with the optical alignment model according to object lens system with convex surface, this optical alignment model is the lens with concave surface, the radius-of-curvature equal and opposite in direction of the radius-of-curvature of this concave lens surface and object lens body convex surface, and the external diameter of optical alignment model is identical with the external diameter of object lens body;
2) convex surface of object lens body and the concave surface coaxial cable of optical alignment model are fitted mutually, and make the cylindrical alignment of object lens body and optical alignment model;
3) the embedding lens that will have a convex surface are packed in the through hole of object lens body with the bonding fixed form, and the summit that embeds the lens convex surface are pushed up with the summit of optical alignment model concave surface close;
4) behind the adhesive solidification, promptly obtain embedded combined objective.
6. preparation method of embedded combined objective according to claim 1 is characterized in that: may further comprise the steps:
1) be equipped with the optical alignment model according to the object lens system with concave surface, this optical alignment model is the lens with convex surface, the radius-of-curvature equal and opposite in direction of the radius-of-curvature of this lens convex surface and object lens body concave surface, and the external diameter of optical alignment model is identical with the object lens body diameter;
2) concave surface of object lens body and the convex surface coaxial cable of optical alignment model are fitted mutually, and make the cylindrical alignment of object lens body and optical alignment model;
3) the embedding lens that will have a concave surface are packed in the through hole of object lens body with the bonding fixed form, and the summit that embeds concave lens surface are pushed up with the summit of optical alignment model convex surface close;
4) behind the adhesive solidification, promptly obtain embedded combined objective.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100657525A CN101630059B (en) | 2009-08-12 | 2009-08-12 | Embedded combined objective and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100657525A CN101630059B (en) | 2009-08-12 | 2009-08-12 | Embedded combined objective and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101630059A CN101630059A (en) | 2010-01-20 |
| CN101630059B true CN101630059B (en) | 2011-05-25 |
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| CN2009100657525A Expired - Fee Related CN101630059B (en) | 2009-08-12 | 2009-08-12 | Embedded combined objective and preparation method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106526817B (en) * | 2016-11-20 | 2018-11-16 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of optical path configuration for eliminating the cold picture of infrared continuous zooming optical system |
| CN111273455A (en) * | 2019-12-12 | 2020-06-12 | 河北汉光重工有限责任公司 | Method for assembling and adjusting visible light/infrared composite lens |
| CN112596228A (en) * | 2020-12-28 | 2021-04-02 | 北京光探科技有限公司 | Novel coaxial double-view-field telescope system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2254737A (en) * | 1991-02-15 | 1992-10-14 | Philips Electronic Associated | Antenna apparatus for infrared and millimetre-wave radiation. |
| US5371397A (en) * | 1992-10-09 | 1994-12-06 | Mitsubishi Denki Kabushiki Kaisha | Solid-state imaging array including focusing elements |
| CN1502049A (en) * | 2001-12-04 | 2004-06-02 | ���ṫ˾ | Optical element and method for fabricating the same |
| CN1862823A (en) * | 2005-05-10 | 2006-11-15 | 三星电子株式会社 | Image sensor having embedded lens |
-
2009
- 2009-08-12 CN CN2009100657525A patent/CN101630059B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2254737A (en) * | 1991-02-15 | 1992-10-14 | Philips Electronic Associated | Antenna apparatus for infrared and millimetre-wave radiation. |
| US5371397A (en) * | 1992-10-09 | 1994-12-06 | Mitsubishi Denki Kabushiki Kaisha | Solid-state imaging array including focusing elements |
| CN1502049A (en) * | 2001-12-04 | 2004-06-02 | ���ṫ˾ | Optical element and method for fabricating the same |
| CN1862823A (en) * | 2005-05-10 | 2006-11-15 | 三星电子株式会社 | Image sensor having embedded lens |
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| CN101630059A (en) | 2010-01-20 |
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