CN2775702Y - Differential focusing synchronous digital telescope - Google Patents

Abstract

The utility model relates to a difference focusing synchronous digital telescope which comprises a binoculars, a digital camera connected with the binoculars, a telescopic objective lens and a telescopic eyepiece coaxially arranged in a left and a right lens cones, and a photographic objective lens arranged in a lens cone of the digital camera, wherein an adjusting screw rod connected with a focusing hand wheel in a screwing mode is connected with the telescopic objective lens; the photographic objective lens arranged in a fixed frame is provided with a radial guide pin; a sleeve barrel provided with a guide groove of a cam is sheathed on the fixed frame, and the radial guide pin is positioned in the guide groove of a cam; the focusing hand wheel drives the sleeve barrel to rotate; the radial guide pin drives the photographic objective lens to do axial movement along the guide groove of a cam, and a proportion value between the amount of movement X1' of the photographic objective lens and the amount of movement X2' of the telescopic objective lens is a constant K. The utility model has the characteristics of compact structure and fast focusing, and focusing is carried out to the binoculars and the digital camera according to a certain proportion simultaneously.

Description

The synchronous digital telescope of differential focusing

Technical field

The utility model belongs to the optical instrument technical field, especially relates to a kind of telescope and digital camera being combined as a whole, and can realize that telescope observes and the synchronous digital telescope of the differential focusing of camera.

Technical background

The novel digital telescope is a kind of new product that telescope and digital camera are combined, and uses this product, and people both can pass through the telescope observing scene, also can required scenery directly be taken by digital camera simultaneously.A kind of structure of digital telescope on the market is simply telescope and digital camera to be linked together at present, because the objective focal length of digital camera is nonadjustable, so can only take the target beyond 20 meters, and the photo of different scenery can not all keep clear.The digital telescope of another kind of structure, though the photographic lens of its digital camera can be focused separately, divide 3～5 meters, the two grades of adjustings in 20 meters～infinite distance class, but need the distance of first estimating target when taking, then according to different distance, adjust camera lens to corresponding class and take pictures again, owing to logarithmic code camera and telescopical focal length are regulated therefore operation inconvenience respectively.Also having some digital telescopes is that camera object lens and telescope objective are made parfocal, realize looking in the distance and take a picture synchronous-focusing, but its profile is bigger, and structure is not compact.Simultaneously, because adjusted position exists parallax for the people of the different eyesights of same target in telescopical, thus be difficult for object observing accurately and rapidly, and the sharpness that influence is taken pictures.

Summary of the invention

The purpose of this utility model provides a kind of compact conformation, focusing fast, and the synchronous digital telescope of differential focusing of simultaneously telescope and digital camera being focused by a certain percentage.

Further purpose of the present utility model provides a kind of synchronous digital telescope of differential focusing that can eliminate different users's parallax.

The utility model technical scheme for achieving the above object is: the synchronous digital telescope of a kind of differential focusing, comprise binoculars and be connected digital camera on the binoculars, the telephotolens and the telescopic ocular of coaxial setting in the lens barrel of the binoculars left and right sides, photographic lens in the digital camera lens barrel, the adjusting screw(rod) that is screwed on the focusing handwheel is connected with telephotolens, be arranged on and have the footpath guide pins on the photographic lens in the fixed mount, the sleeve set that is provided with cam rail is on fixed mount, the footpath guide pins is positioned at cam rail, the focusing handwheel drive sleeve is rotated, the footpath guide pins drives photographic lens along cam rail and moves axially, and the ratio value of the amount of movement X1 ' of photographic lens and the amount of movement X2 ' of telephotolens is a constant K.

The utility model for the technical scheme that realizes above-mentioned further purpose is: the telescopic ocular in the lens barrel of the described left and right sides is contained on the eyepiece mount, footpath guide pins on the telescopic ocular is provided with in the cam path of rotating cylinder, eyeshade is fixedlyed connected with rotating cylinder, together rotating the drive telescopic ocular moves axially, between prism group and telescopic ocular, graticule is housed in one of them rotating cylinder, and graticule be provided with aim at beautiful.

The utility model rotatablely moves by focusing handwheel, the telephotolens antero posterior axis is focused to moving, focusing handwheel drives the sleeve rotation of photographic lens outside simultaneously, make sleeve drive the footpath guide pins along moving in its cam rail, photographic lens is axially moved forward and backward and focus, because the ratio of the axial internal clearance of photographic lens and the axial internal clearance of telephotolens is a constant, thereby realize photographic lens and the synchronous differential focusing of telephotolens, and reach imaging purpose clearly, its novel structure, compactness.The utility model is for eliminating different users's eyesight difference, between telescopical lens barrel prism group and telescopic ocular, a graticule is equipped with in the image planes position that is telephotolens, when the user uses, the eyepiece of graticule is housed by adjusting, make graticule for the clearest, reach and observe and take effect the most clearly.

Description of drawings

To closing accompanying drawing embodiment of the present utility model is described in further detail below.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is that the A of Fig. 1 is to structural representation.

Fig. 3 is that Fig. 1 removes the B of eyeshade to structural representation.

Fig. 4 is the basic optical schematic diagram of the utility model.

Fig. 5 is elimination principle of parallax figure of the present utility model.

Wherein: the 1-telephotolens; The 2-adjusting screw(rod); The 3-control hand wheel; The 4-fixed mount; The 5-gear; The 6-sleeve; The 6-1-cam rail; The 7-set nut; The 8-photographic lens; 8-1-is pin radially; The 9-telescopic ocular; 9-1-is pin radially; The 10-trim ring; The 11-rotating cylinder; The 11-1-cam path; The 12-eyepiece mount; The 13-graticule; The 14-lens barrel; The 15-sheathing; 16-prism group; 17-graduation panel seat; The 18-eyeshade; The 19-connecting plate.

Embodiment

As Fig. 1, shown in 2, the synchronous digital telescope of differential focusing of the present utility model, comprise binoculars and be connected digital camera on the binoculars by connecting plate 19, telephotolens 1 and telescopic ocular 9 are set in the left and right sides lens barrel 14 of binoculars, be provided with sheathing 15 in the outside of lens barrel 14, photograph machine object lens 8 in the digital camera lens barrel, focusing handwheel 3 is screwed on the adjusting screw(rod) 2, and adjusting screw(rod) 2 is connected with telephotolens 1 by outer connective pole, adjusting screw(rod) 2 of the present utility model adopts double threaded screw or multiple-threaded screw, rotating control hand wheel 3 makes telephotolens 1 move axially the realization focusing by adjusting screw(rod) 2, photographic lens 8 is arranged in the fixed mount 4, fixed mount 4 is connected with telescopical lens barrel 14 by connecting plate 19, photographic lens 8 has footpath guide pins 8-1,6 in the sleeve that is provided with cam rail 6-1 is sleeved on the fixed mount 4, this sleeve 6 is T shape cover, and sleeve 6 carries out axial location by set nut 7, T shape one side at T shape cover is fixed with gear 5, with the gearing mesh on the focusing handwheel 3, sleeve 6 is rotated by focusing handwheel 3; T shape one side of sleeve 6 of the present utility model also can be fixed with roller, roller is connected with focusing handwheel 3 frictions, sleeve 6 is rotated, and the footpath guide pins 8-1 of photographic lens 8 is positioned at cam rail 6-1, sleeve 6 rotates, and then footpath guide pins 8-1 moves and drives photographic lens 8 and move axially and focus along cam rail 6-1.

According to optical principle, as shown in Figure 4, XX '=ff ', $X^{\′}=\frac{{\mathrm{ff}}^{\′}}{X}$

Then have $\frac{{{\mathrm{<figure-callout\; id="1"\; label="X"\; filenames="Y20052006996500081.png,Y20052006996500111.png"\; state="\{\{state\}\}">X</figure-callout>}}_1}^{\&prime;}}{{{\mathrm{<figure-callout\; id="2"\; label="X"\; filenames="Y20052006996500081.png"\; state="\{\{state\}\}">X</figure-callout>}}_2}^{\&prime;}}=\frac{\frac{{f_1{\mathrm{<figure-callout\; id="1"\; label="f"\; filenames="Y20052006996500081.png,Y20052006996500111.png"\; state="\{\{state\}\}">f</figure-callout>}}_1}^{\&prime;}}{X_1}}{\frac{{f_2{\mathrm{<figure-callout\; id="2"\; label="f"\; filenames="Y20052006996500081.png"\; state="\{\{state\}\}">f</figure-callout>}}_2}^{\&prime;}}{{\mathrm{<figure-callout\; id="2"\; label="X"\; filenames="Y20052006996500081.png"\; state="\{\{state\}\}">X</figure-callout>}}_2}}$

Because l ₁-f ₁=X ₁≈ X ₂=l ₂-f ₂

Then have $\frac{{{\mathrm{<figure-callout\; id="1"\; label="X"\; filenames="Y20052006996500081.png,Y20052006996500111.png"\; state="\{\{state\}\}">X</figure-callout>}}_1}^{\&prime;}}{{{\mathrm{<figure-callout\; id="2"\; label="X"\; filenames="Y20052006996500081.png"\; state="\{\{state\}\}">X</figure-callout>}}_2}^{\&prime;}}=\frac{{f_1{\mathrm{<figure-callout\; id="1"\; label="f"\; filenames="Y20052006996500081.png,Y20052006996500111.png"\; state="\{\{state\}\}">f</figure-callout>}}_1}^{\&prime;}}{{f_2{\mathrm{<figure-callout\; id="2"\; label="f"\; filenames="Y20052006996500081.png"\; state="\{\{state\}\}">f</figure-callout>}}_2}^{\&prime;}}=\frac{{{\mathrm{<figure-callout\; id="1"\; label="f"\; filenames="Y20052006996500081.png,Y20052006996500111.png"\; state="\{\{state\}\}">f</figure-callout>}}_1}^{\&prime;2}}{{{\mathrm{<figure-callout\; id="2"\; label="f"\; filenames="Y20052006996500081.png"\; state="\{\{state\}\}">f</figure-callout>}}_2}^{\&prime;2}}=k$

Wherein: X ₁' be the photographic lens amount of movement, X ₂' be the telephotolens amount of movement, f ₁' be the focal length of photographic lens, f ₂' be the focal length of telephotolens.

For same target, square being directly proportional of the image planes displacement of telephotolens and photographic lens and its focal length is for the system f that determines ₁', f ₂' be constant, so X ₁'=kX ₂', the amount of movement X1 ' of photographic lens 8 of the present utility model is a constant K with the ratio value of the amount of movement X2 ' of telephotolens 1.

The utility model can pass through to select the ratio of gear of gear and the lift angle of cam rail 6-1, and the ratio of gear of focusing handwheel and roller makes the amount of movement X of photographic lens ₁' and the amount of movement X of telephotolens ₂' meet X ₁'=kX ₂' proportionate relationship, the requirement of differential focusing is satisfied in promptly having realized taking a picture and to look in the distance focusing synchronously.

See shown in Fig. 1,3, in the telescopical lens barrel 14 of the utility model, its telescopic ocular 9 is contained on the eyepiece mount 12, and has footpath guide pins 9-1 on the telescopic ocular 9, and this footpath guide pins 9-1 is provided with in the cam path 11-1 of rotating cylinder 11, rotating cylinder 11 is contained on the eyepiece mount 12, and by trim ring 10 axial location, eyeshade 18 is fixedlyed connected with rotating cylinder 11, and eyeshade 18 together rotates with rotating cylinder 11, footpath guide pins 9-1 on the eyepiece 8 is moved along the cam path 11-1 on the rotating cylinder 11, regulate diopter.With telescopic ocular 9 graticule 13 is housed and be positioned at prism group 16 in one of them rotating cylinder 11, promptly increases graticule on image planes, graticule 13 is connected to prism group 16 1 sides by graduation panel seat 17, and making graticule 13 is fixing in the optical axis direction position.

See shown in Figure 5, according to optical principle, since photographic lens 8 object image-forming on image planes MM, be on the light-sensitive surface of CMOS, CMOS is fixed, by move forward and backward telephotolens 1 with object image-forming when image planes KK goes up, eyes and telescopic ocular 9 constitute one group of compound lens, its combined focal length is the f order, and when the compound lens focal plane overlapped with the image planes KK of telephotolens 1, the observed object of eyes was exactly the most clearly.Because different users's the eyes and the combined focal length f order of telescopic ocular 9 are different, be that its focal plane image planes KK that establishes a capital with telephotolens 1 that differs overlaps, for example be K ' K ' or K " K ", this moment is by moving forward and backward fine setting to telescopic ocular 9, make K ' K ' or K that " K " overlaps with KK, the user sees that the mark that is placed on graticule 13 between prism group 16 and the telescopic ocular 9 reaches the most clear, the user is the most clearly by the observed object of telescope more then, imaging on the CMOS also is the most simultaneously, solved the problem that there is parallax in the different users, reach and observe and take simultaneously effect the most clearly, promptly observe and take pictures synchronously, graticule 13 of the present utility model is provided with cruciform or triangle frame, marks such as rectangle frame.

Claims (7)

1, the synchronous digital telescope of a kind of differential focusing, comprise binoculars and be connected digital camera on the binoculars, the telephotolens (1) and the telescopic ocular (9) of coaxial setting in the binoculars left and right sides lens barrel (14), photographic lens (8) in the digital camera lens barrel, it is characterized in that: the described adjusting screw(rod) (2) that is screwed on the focusing handwheel (3) is connected with telephotolens (1), be arranged on and have footpath guide pins (8-1) on the photographic lens (8) in the fixed mount (4), the sleeve (6) that is provided with cam rail (6-1) is sleeved on the fixed mount (4), footpath guide pins (8-1) is positioned at cam rail (6-1), focusing handwheel (3) drives sleeve (6) and rotates, footpath guide pins (8-1) drives photographic lens (8) along cam rail (6-1) and moves axially, and the ratio value of the amount of movement X1 ' of photographic lens (8) and the amount of movement X2 ' of telephotolens (1) is a constant K.

2, the synchronous digital telescope of differential focusing according to claim 1 is characterized in that: described sleeve (6) is a T shape cover, and the gearing mesh on the gear (5) of T shape one side and the focusing handwheel (3).

3, the synchronous digital telescope of differential focusing according to claim 1 is characterized in that: described sleeve (6) is T shape cover, and the roller of T shape one side of sleeve (6) is connected with focusing handwheel (3) friction.

4, the synchronous digital telescope of differential focusing according to claim 1 is characterized in that: described adjusting screw(rod) (2) is double threaded screw or multiple-threaded screw.

5, the synchronous digital telescope of differential focusing according to claim 1, it is characterized in that: the telescopic ocular (9) in the described left and right sides lens barrel (14) is contained on the eyepiece mount (12), footpath guide pins (9-1) on the telescopic ocular (9) is provided with in the cam path (11-1) of rotating cylinder (11), eyeshade (18) is fixedlyed connected with rotating cylinder (11), together rotating drive telescopic ocular (9) moves axially, be positioned in one of them rotating cylinder (11) between prism group (16) and the telescopic ocular (9) graticule (13) be housed, and graticule (13) be provided with aim at beautiful.

6, the synchronous digital telescope of differential focusing according to claim 5 is characterized in that: described graduation panel seat (17) is connected to prism group (16) one sides, and graticule (13) is connected on the graduation panel seat (17).

7, according to claim 5 or the synchronous digital telescope of 6 described differential focusing, it is characterized in that: described graticule (13) is provided with the cruciform aligning or shaped as frame is aimed at beautiful.

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