CN2431576Y

CN2431576Y - Glasses type big view angle telescope

Info

Publication number: CN2431576Y
Application number: CN 00227416
Authority: CN
Inventors: 刘红帆
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-02-29
Filing date: 2000-02-29
Publication date: 2001-05-23
Anticipated expiration: 2010-02-28

Abstract

The utility model provides a glasses type big view angle telescope and comprises a telescope stand, a telescope barrel, an objective lens and an eye lens, and is characterized in that four flat surface reflecting lenses for sequential refraction are arranged in the telescope barrel, and the eye lens is a convex lens. Because the four flat surface reflecting lenses are adopted as an inverted image assembled unit, the image formation is positive after passing the eye lens of the convex lens. Compared with an existing telescope using a concave lens as the eye lens, the glasses type big view angle telescope has the advantage of big view angle, so a user can clearly see a picture bigger than a television screen through the glasses type big view angle telescope. The glasses type big view angle telescope also has the advantages of compact structure, light weight, convenient adjustment and convenient use and is suitable for people to watch television or literature and art programs.

Description

A kind of spectacle is telescope with great visual angle

The utility model relates to telescope, and particularly a kind of spectacle is telescope with great visual angle, and suitable people watch TV to use.

In prior art, telescope commonly used is to make object lens, make a month mirror with concavees lens with convex lens, and its advantage is to be imaged as erect image, simple in structure, in light weight, yet, not enough is visual angle little (promptly watch area little), enlargement factor is low.Therefore, when watching TV,, make people feel sorry though scalable screen-picture can not be watched the image of whole screen with this telescope.

The purpose of this utility model provides a kind of spectacle telescope with great visual angle just at the problems referred to above, uses this telescope can clearly see the enlarged image of whole TV screen.

Above-mentioned task realizes by this way: this telescope includes mirror holder, lens barrel, object lens and eyepiece, it is characterized in that being provided with in each lens barrel four 1～No. 4 plane mirrors of refraction successively, No. 1 plane mirror and object lens angle at 45 is provided with, No. 2 plane mirrors and No. 1 plane mirror are provided with mutually at an angle of 90, No. 3 plane mirrors and No. 4 catoptrons are provided with mutually at an angle of 90, refracted ray between refracted ray between No. 1 plane mirror and No. 2 plane mirrors and No. 3 plane mirrors and No. 4 plane mirrors mutually at an angle of 90, eyepiece is convex lens.

The purpose of this utility model can also take following measure to realize, at No. 1 plane mirror, No. 2 plane mirrors, the surface of No. 3 plane mirrors and No. 4 plane mirrors is coated with one deck reflecting coating, to avoid adopting common reflective mirror, the sharpness that this telescope is obtained because of the ghost image that reflector layer produces in the bottom surface.

The purpose of this utility model also can take following measure to realize: for the ease of adjusting focal length, object lens are contained in the slip lens barrel, the socket of the fixed mirror of this slip lens barrel and lens barrel cover.In addition, object lens and slip lens barrel are preferably eccentric to be provided with, and offset is 0.6～4 millimeter.Because this telescope adopts four plane mirrors to make and is imaged as erect image, if manufacturing accuracy has deviation slightly, the imaging of two lens barrels can not be overlapped.After adopting above-mentioned measure, in case when finding that two mirrors letter imagings do not overlap,, thereby be embodied as the purpose that picture all overlaps up and down as long as the rotational slide lens barrel changes the angle of the primary optical axis of two lens barrels.

Because this telescopical eyepiece is convex lens, and adopts four plane mirrors to make the inverted image assembled unit, its imaging is the erect image through amplifying.Therefore, people are worn over head with this telescope and go up and just can see the picture bigger than television screen, can watch bigger scope of activities when being used to watch literature and art or sports cast, solve effectively have the telescope visual angle little deficiency.In addition, this telescope also has distance weak point, compact conformation between object lens and the eyepiece, in light weight, adjusting and advantage such as easy to use.

Below in conjunction with accompanying drawing structure of the present utility model is further described.

Fig. 1 is the stereographic map of a kind of concrete structure of this telescope.

Fig. 2 is that the mutual alignment of the interior object lens of lens barrel, eyepiece and 1～No. 4 plane mirror among Fig. 1 is provided with and the light refraction schematic diagram.

Fig. 3 is the partial sectional view of Fig. 1 along the A-A line.

As shown in Figure 1, mirror holder 1 of the present utility model as glasses are the same can be made of plastic.Two lens barrels made of plastic 2 are arranged on the mirror holder 1.The object lens made from convex lens 3 place with 2.5 millimeters of off-centre in the slip lens barrel 4 of a circle, and this slip lens barrel 4 is placed in the objective tube 5 fixing in the lens barrel 2, can move forward and backward and rotation.No. 1 plane mirror 6 is arranged in the lens barrel 2 with the incident ray angle at 45 of object lens 3, No. 2 plane mirrors 7 and No. 1 plane mirror 6 setting at an angle of 90 mutually, and refracted ray is mutually at an angle of 90 between refracted ray therebetween and No. 1 catoptron 6 and No. 2 catoptrons 7.The mutual balance of refracted ray between the refracted ray of incident ray, No. 2 plane mirrors 7 and No. 3 plane mirrors 8 between object lens 3 and No. 1 catoptron 6 and No. 4 plane mirrors 9 and the order sharp 10, eyepiece 10 is convex lens, is provided with in the fixed eyepiece tube 11 in the lens barrel 2.

Claims

1, a kind of spectacle is telescope with great visual angle, include mirror holder, lens barrel, object lens and eyepiece, it is characterized in that being provided with in each lens barrel four 1～No. 4 plane mirrors (6 of refraction successively, 7,8 and 9), No. 1 plane mirror (6) is provided with object lens (3) angle at 45, No. 2 plane mirrors (7) are provided with mutually at an angle of 90 with No. 1 plane mirror (6), No. 3 plane mirrors (8) are provided with mutually at an angle of 90 with No. 4 catoptrons (9), refracted ray between refracted ray between No. 1 plane mirror (6) and No. 2 plane mirrors (7) and No. 3 plane mirrors (8) and No. 4 plane mirrors (9) mutually at an angle of 90, eyepiece is convex lens.

2, telescope according to claim 1 is characterized in that the surface of 1～No. 4 plane mirror (6,7,8,9) is coated with one deck reflecting coating.

3, telescope according to claim 1 is characterized in that object lens (3) are contained in the slip lens barrel (4), and this slip lens barrel (4) is socketed in the fixed mirror cover (5) of lens barrel (2).

4, according to claim 1 or 3 described telescopes, it is characterized in that the eccentric setting of object lens (3) and slip lens barrel (4), offset is 0.6～4 millimeter.