CN203811894U

CN203811894U - Novel binocular

Info

Publication number: CN203811894U
Application number: CN201420220795.2U
Authority: CN
Inventors: 李春茂
Original assignee: Foshan City Nanhai Weihong Mold Products Co Ltd
Current assignee: Foshan City Nanhai Weihong Mold Products Co Ltd
Priority date: 2014-04-30
Filing date: 2014-04-30
Publication date: 2014-09-03
Anticipated expiration: 2024-04-30

Abstract

The utility model discloses a novel binocular, comprising a pair of parallel tubular lens bodies which are connected through a connecting bridge, and the lens body is provided with an objective lens assembly, a prism assembly, and an ocular assembly which form an optical imaging system. The connecting bridge is provided with a focusing bolt. A connecting arm is connected between an objective lens cone and the focusing bolt, and the connecting arm is connected with the focusing bolt by threads. The lens bodies are formed by combining semi-tubular structures on the left side and the right side. The connecting arm is integrated with the objective lens cone. A half-pentaprism and a ridge prism of the prism assembly are fixed in an inner eccentric cylinder. The inner eccentric cylinder is sleeved in an outer eccentric cylinder. The binocular divides a conventional lens cone in half, so the binocular is convenient to install, and the connecting arm and a focusing lens cone are integrated, so coaxiality of an objective lens group and the lens bodies are easier to ensure. The inner and outer double eccentric cylinder structure is used for adjustment and calibration of the prism combination optical axis of the binocular, so that adjustment and calibration of the optical axis is convenient, and waterproofness and sealing performance are good.

Description

Novel binoculars

Technical field

The utility model relates to telescope technical field, refers in particular to binoculars.

Background technology

Traditional binoculars mirror body adopts integral tube structure, for object lens interior focusing system waterproof product, be typically chosen in the front opening of mirror body, complete the assembling of focusing objective lens, focusing lens barrel is connected by a linking arm with focusing bolt, adopt again sealed cover plate structure sealing, as reached the synchronism of left and right optical system focusing and qualified picture element, to element precision (right alignment, circularity, verticality), require high.The optical axis of optical system is proofreaied and correct by make a call to three screws on mirror body, with three screws, regulate prism lens barrel position to realize (gapped between prism lens barrel and mirror body), after optical axis is proofreaied and correct, at screw place, be coated with fluid sealant, and then put overcoat, complete telescope assembling, such three screws are three points with contacting of prism lens barrel, can produce stress, as time goes by, may cause prism deformation of mirror cylinder, thereby cause optical axis variation, overproof.Make the assembling of product relatively difficult, efficiency is relatively low.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of convenient installation, the novel binoculars that optical imaging system precision is high.

The utility model is the technical scheme that technical solution problem adopts: a kind of novel binoculars, comprise a pair of parallel tubulose mirror body connecting by connecting bridge, the objective lens unit that forms optical imaging system is installed in mirror body, prism assemblies and eyepiece component, focusing bolt is installed in connecting bridge, between lens barrel and focusing bolt, be connected with linking arm, and linking arm is connected with focusing bolt thread, it is characterized in that: the halfpipe structure that described mirror body is set as by the left and right sides involutes, linking arm is set as with lens barrel one-body molded, half pentaprism of prism assemblies and roof prism are fixed in an interior eccentric cylinder, interior eccentric cylinder is sleeved in an outer eccentric cylinder.

The beneficial effect that adopts the utility model to bring: the mirror body of the utility model binoculars adopts half tubular construction (two formula mirror structures), be about to traditional lens barrel dimidiation, its benefit of bringing is exactly originally for the inner part of homogeneous tube structure, all to have become and exposed part, is convenient to very much install; Linking arm and focusing drawtube are combined together, as a part, thereby more easily guarantee the right alignment of objective lens and mirror body, avoid mirror body deformability and the oval impact on telescope optical imagery; The adjustment of binoculars prism group optical axis adopts inside and outside two eccentric cylinder structure, and prism group and mirror body are radial and axial all very close to each other, and the adjustment of optical axis is by rotating interior eccentric cylinder or outer eccentric cylinder, and change prism group shaft core position is realized.After optical axis is proofreaied and correct, between mirror body, Jing Gai and prism group, gluing is fixed again, by means such as high frequencies, make these two involutory weldings of halfpipe part complete assembling again, more reliable and more stable than three traditional screw adjustment structures, longer service life, and mirror body does not need other opening and beats screw, and it is easier that waterproof sealing is realized; Also make mirror body, Jing Gai directly as outward appearance part, make various color matching; Can reduce numerous parts simultaneously, as left and right mirror cover, linking arm, optical axis set screw, seal cover board, cover plate gib screw etc., thus reduced greatly cost of parts and cost of labor.

Accompanying drawing explanation

Fig. 1 is the cut-open view of the utility model binoculars;

Fig. 2 is the explosive view of the utility model binoculars;

Fig. 3 is the explosive view of focusing lens group of the present utility model;

Fig. 4 is the explosive view of prism assemblies of the present utility model.

Embodiment

As Figure 1-4, binoculars of the present utility model, comprise a pair of parallel tubulose mirror body 2 connecting by connecting bridge 1, the objective lens unit 3, prism assemblies 4 and the eyepiece component 5 that form optical imaging system are installed in mirror body 2, form therefrom two independent optical imaging systems of left and right full symmetric, using the longitudinal standard shaft of connecting bridge 1 as left and right mirror body 2, independently optical imagery primary optical axis is parallel to guarantee two, and can make left and right mirror body 2 around this standard shaft rotation, thereby can, according to user's needs, adjust distance and the human eye equity of binoculars eyepiece.Focusing bolt 6 is installed in connecting bridge 2, between lens barrel 3.1 and focusing bolt 6, is connected with linking arm 3.2, and linking arm 3.2 is threaded with focusing bolt 6.In the utility model, the semicanal 2.1 shape structures that mirror body 2 is set as by the left and right sides involute, linking arm 3.2 is set as with lens barrel 3.1 one-body molded, half pentaprism 4.1 of prism assemblies 4 and roof prism 4.2 are fixed in an interior eccentric cylinder 4.3, and interior eccentric cylinder 4.3 is sleeved in an outer eccentric cylinder 4.4.

Object lens are generally comprised of fixedly object lens 3.3 and focusing lens 3.4, and fixedly object lens 3.3 are generally comprised of two or three lens, are the cemented objective that two lens form in this example, and position maintains static.Focusing lens 3.4 is generally comprised of a slice lens or balsaming lens, is a slice lens in this example.User is the difference of target according to the observation, the bolt 6 of rotatably focusing, thus drive lifting nut 7, pull bar 8, finally drive focusing lens group to move forward and backward and move along optical axis direction, realize the adjustment of focal length.Focusing lens group forms (as shown in Figure 3) by focusing lens trim ring 3.5, lens barrel 3.1, focusing lens 3.4, and lens barrel 3.1 linking arms 3.2 are one-body molded, can avoid mirror body deformability and the oval impact on telescope quality.

Prism is comprised of a slice half pentaprism 4.1 and a slice roof prism 4.2, and light, through prism group, four secondary reflections can occur, and realizes complete inverted image function.Prism group is being born main optical axis calibration function, and it relies on the interior eccentric cylinder 4.3 of rotation or the two-layer camcylinder structural member of outer eccentric cylinder 4.4 to complete.Prism group and mirror body 2 are radial and axial all very close to each other, and closely fit, makes optical axis more reliable and more stable, longer service life.

Eyepiece generally forms by two groups three or three groups four or three groups five, and this example is two groups of three compositions, and wherein first group is cemented doublet, and second group is single element lens.

In theory, vertical Yu the plane of incidence of Leng Mirror group through the chief ray of objective lens, and the plane of incidence light hole center superposition of Yu Leng Mirror group, the chief ray of eyepiece group is vertical Yu the exit facet of Leng Mirror group, and the exit facet light hole center superposition of Yu Leng Mirror group.Yet, in the manufacturing process of product, each link is likely introduced error, thereby cannot meet the theoretical requirement of optical system, can there is skew or tilt in the chief ray that is to say three mirrors, this just makes two of binoculars, and independently optical imagery primary optical axis is not parallel, brings very large interference to user's object observing.In the utility model, for the interference of eliminating this chief ray skew or tilting to binoculars image quality, the utility model has adopted prism assemblies eccentric structure regulative mode.

As shown in Figure 4, prism assemblies 4 consists of half pentaprism 4.1, roof prism 4.2, interior eccentric cylinder 4.3, outer eccentric cylinder 4.4 and prism partition 4.5.It is interior fixing that half pentaprism 4.1, roof prism 4.2 and prism partition 4.5 Installed are placed in interior eccentric cylinder 4.3, and interior eccentric cylinder 4.3 forms the face of cylinder with outer eccentric cylinder 4.4 and mates fit, and interior eccentric cylinder 4.3 is eccentric cylinder structure with outer eccentric cylinder 4.4.According to optical axis, proofread and correct and need to rotate interior eccentric cylinder 4.3 or outer eccentric cylinder 4.4.

As shown in Figure 2, the correction of mirror group optical axis, picture element are coated with appropriate water-proof silica-gel at mirror body 2 with the position that cemented objective, eyepiece end are combined after having debugged, and the opposite side semicanal 2.1 that covers mirror body 2 aligns and high-cycle welding, complete telescope assembling.

The utility model homogeneous tube mirror structure pattern that breaks traditions, innovative design semicanal mirror structure and prism eccentric structure, original product inner structural members is directly exposed can be controlled; Linking arm and lens barrel combine together, can avoid mirror body deformability and the oval impact on telescope quality, thereby have reduced the manufacture requirement of product component precision; Unique decentered prism structure, makes telescope optic axis more reliable and more stable; Because mirror body does not need other opening and beats screw, the water-proof function of product relies on high-cycle welding more easily to realize; Also make mirror body, Jing Gai directly as outward appearance part, make various color matching; Thereby can reduce numerous parts and reduce greatly cost of parts and cost of labor simultaneously.In the situation that configuration condition is enough, the dress school of binoculars is convenient, thereby significantly improves production efficiency and the acceptance rate of binoculars, reduces the production cost of product and improves quality.

Claims

1. novel binoculars, comprise a pair of parallel tubulose mirror body connecting by connecting bridge, the objective lens unit that forms optical imaging system is installed in mirror body, prism assemblies and eyepiece component, focusing bolt is installed in connecting bridge, between lens barrel and focusing bolt, be connected with linking arm, and linking arm is connected with focusing bolt thread, it is characterized in that: the halfpipe structure that described mirror body is set as by the left and right sides involutes, linking arm is set as with lens barrel one-body molded, half pentaprism of prism assemblies and roof prism are fixed in an interior eccentric cylinder, interior eccentric cylinder is sleeved in an outer eccentric cylinder.