Prism arrangementTechnical field
The present invention relates to prism imaging field, a kind of prism arrangement is particularly related to.
Background technology
Now science and technology using semi-transflective reflective principle field widely, it is general by layers of prisms and reflecting layer combinationPrinciple is imaged.But prism structure now is set due to layering, causes space or bubble, or two occur between two-layerLayer central shaft is asymmetric, and imaging is empty.There is no good imaging effect.
The content of the invention
The present invention proposes a kind of prism arrangement, solves the problems of the prior art.
The technical proposal of the invention is realized in this way：
Prism arrangement, including a prism and a lens, the prism include light incident side and exiting side, and exiting side is flat to inclineFace, the lens include light incident side and lens side, and light incident side is clinoplain, and lens side is convex lens structure, and convex lens face is provided withReflectance coating, prism exiting side and lens entrance inclination tapered plane projection are parallel, and two clinoplains pass through UV glue bonds.
Used as preferred scheme of the invention, the central shaft of the prism and lens is concentric.
Used as preferred scheme of the invention, the prisms tilted plane is A, and in side elevation, plane A is in angle with vertical planeAOL is α, wherein 40 °≤α≤50 °.
As preferred scheme of the invention, have half reflection plated film, the half reflection plating on the clinoplain of the prismFilm average reflectance is n, wherein 45%≤n≤55%.
Used as preferred scheme of the invention, the half reflection plated film wavelength threshold is m, wherein 420nm≤m≤680nm.
Used as preferred scheme of the invention, the convex lens face of the lens is curved surface B, is set between the curved surface B and reflectance coatingThere is deielectric-coating.
Used as preferred scheme of the invention, the radius of curvature of the curved surface B is R, wherein 55≤R≤60.
Used as preferred scheme of the invention, the deielectric-coating wavelength threshold is o, wherein 420nm≤o≤680nm.
Used as preferred scheme of the invention, the UV glue is NEC chemistry OP1030 type glue.
Beneficial effect：The present invention proposes a kind of prism arrangement, including a prism and a lens, and the prism includes incidenceSide and exiting side, exiting side are clinoplain, and the lens include light incident side and lens side, and light incident side is clinoplain, lensSide is convex lens structure, and convex lens face is provided with reflectance coating, and prism exiting side and lens entrance inclination tapered plane projection are parallel, and two inclineTapered plane passes through UV glue bonds.Cause that imaging and focussing force are realized simultaneously by the combination of prism and lens, reduce lightLoss and eccentric error, make imaging precision higher.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existingThe accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only thisSome embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used alsoOther accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is side structure schematic view of the present invention；
Fig. 2 is overlooking the structure diagram shown in Fig. 1.
In figure, prism 1, lens 2.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeSite preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on thisEmbodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not madeExample is applied, the scope of protection of the invention is belonged to.
Such as Fig. 1, shown in Fig. 2, prism arrangement, an including prism 1 and a lens 2, prism 1 includes light incident side and exiting side,Exiting side is clinoplain, and lens 2 include light incident side and lens side, and light incident side is clinoplain, and lens side is convex lens structure, convexSaturating face is provided with reflectance coating, and the exiting side of prism 1 and the projection of the light incident side clinoplain of lens 2 are parallel, and two clinoplains pass through UVGlue bond.
The central shaft of prism 1 and lens 2 is concentric.The clinoplain of prism 1 is A, and in side elevation, plane A is in vertical planeAngle AOL is α, wherein 40 °≤α≤50 °.It is preferred that there is 42 °, 45 °.
Have half reflection plated film on the clinoplain of prism 1, half reflection plated film average reflectance is n, wherein 45%≤n≤55%.It is preferred that 47 °, 50 °, 53 °.
Half reflection plated film wavelength threshold is m, wherein 420nm≤m≤680nm.
The convex lens face of lens 2 is curved surface B, and deielectric-coating is provided between curved surface B and reflectance coating.The radius of curvature of curved surface B is R,Wherein 55≤R≤60.Deielectric-coating wavelength threshold is o, wherein 420nm≤o≤680nm.
UV glue is NEC chemistry OP1030 type glue.
The present invention is structure as a whole so that imaging and focussing force realize that tradition prism+convex lens gluing is complete simultaneouslyInto.Reducing light losing (contrast is glued) reduces the eccentric error of glued generation, and precision is higher.
Embodiment 1
The requirement of wherein N=8.6mm, M=11.77mm, A plane half reflection plated film：AOL=45 ° of wavelength 420nm~680nmAverage penetration rate 50% ± 5%.
The requirement of B curved face total reflections plated film：AOL=0 ° of plated surface multilayer dielectric film, wavelength 420nm~680nm average reflectionsRate>98%.
Fastness：The test tapes of 3M 610 are pasted coated surface and pull (25mm/s) continuous three times without demoulding with 45 ° of directions.
Moisture-proof：60 DEG C, 95%RH x168 hours, salt spray resistance：35 DEG C, 4.5%NaCI x24 hours
5th, glued requirement is as follows:
UV glue specifies NEC chemistry OP1030UV.
GD341X-1 and GD341X-2 is closely glued, and cemented surface can not have.
Bubble and foreign matter impurity, glued side can not have excessive glue to remain.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the inventionWithin god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.