CN2729749Y

CN2729749Y - Objective lens

Info

Publication number: CN2729749Y
Application number: CN 200420046023
Authority: CN
Inventors: 孙学川
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-05-24
Filing date: 2004-05-24
Publication date: 2005-09-28
Anticipated expiration: 2014-05-24

Abstract

The utility model relates to an objective lens fear which can be carried out the anti-acrophobia psychological training. The objective lens is provided with a convex lens and a concave lens. The convex lens is an eyepiece and the concave lens is an objective. The focal distance of the convex lens is larger than the focal distance of the concave lens. The distance between the eyepiece and the objective can be regulated with the rotation of the lens barrel by the thread of the lens barrel.

Description

Objective lens

Technical field

The utility model relates to a kind of anti-equipment of fearing high psychological training.

Background technology

Telescope has many types, and wherein a kind of Galileo telescope that is called is made up of convex lens and concavees lens, and convex lens are made object lens, and concavees lens are made eyepiece, by the combination of this lens, can see far object very near.Human body is in eminence, when spacious all around, have probably the people of high psychology and look down and will produce a kind of fear of falling.Telescopical principle and external form are pointed out to us: the various combination of scioptics, be made into a kind of glasses, can see very near object far, thereby this glasses on the human body band, cooperate other simple machine, though stand in ground also can produce a kind ofly feel like standing upon the edge of an abyss, as locating the probably high psychology at high building top layer edge.

Summary of the invention

In order to make the people not be in danger on the spot, as the eminence edge, the edge, abyss, only by simple and easy effective, safe and reliable device just can resist the probably training of high psychology, the utility model provides a kind of Objective lens, after on this Objective lens band, (be a wooden frame main the composition by anti-acrophobia training platform, there is a secondary abyss figure or a high building figure wooden frame inside, a bulb, the wooden frame surface is a glass, the wooden frame upper middle position has a plank to cross wooden frame, open bulb during use, the people be with Objective lens to abyss figure or high building figure overlook from plank by), the human body generation is felt like standing upon the edge of an abyss, as the probably height of locating high building top layer edge is psychological.

The technical scheme that its technical matters that solves the utility model adopts is: prepare convex lens, concavees lens, the focal length of convex lens is greater than the focal length of concavees lens.When the focal length sum of the distance between concavees lens photocentre and the convex lens photocentre and concavees lens is the focal length of convex lens, after a branch of directional light that near objects is penetrated enters concavees lens, diffuse on the convex lens, the reverse extending line of divergent rays should gather the focus place at convex lens, so imaging is at infinity behind the light planoconvex lens.Make two cylinders, one radius is little, a radius is big, and one section of the inboard end of cylinder that radius is big is threaded one section radius overstriking gradually of the other end; One section of the cylinder outside one end that radius is little is threaded.The cylinder that radius is little just in time can by the turn cylinder, can be regulated the distance between eyepiece and the object lens by being threaded into the big cylinder of radius, thereby reaches visual effect preferably.There is not the end (adding butt end) of screw thread at the big cylinder of radius, the convex lens of packing into, as eyepiece, this cylinder is called eyepiece stalk; There is not an end of screw thread at the little cylinder of radius, the concavees lens of packing into, as object lens, this cylinder is called objective tube.Make an eyepiece stalk and an objective tube again with same method.An objective tube screws in an eyepiece stalk, and another objective tube screws in another eyepiece stalk, two pairs of cylinders is coupled together by a connecting rod again, makes a secondary Objective lens.After being with, can reach the effect of seeing object nearby far, thereby cause separating of human visual and proprioception,, human body is produced fear high psychology by anti-acrophobia training platform.

The beneficial effects of the utility model are can carry out the anti-probably training of high psychology of human body effectively, and its structure to be simple and easy, it is simple, not dangerous to use, and therefore is applicable to the place that needs large tracts of land to promote the use of.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is an index path of the present utility model.

Fig. 2 is the longitudinal diagram of an embodiment of a pair of lens barrel of Objective lens one side.

Fig. 3 is the rear view of Objective lens.

1. eyepieces among the figure, 2. eyepiece stalk, 3. object lens, 4. objective tube, 5. screw thread, 6. connecting rod.

Embodiment

Among Fig. 1, when the focal length sum of the distance between concavees lens photocentre and the convex lens photocentre and concavees lens is the focal length of convex lens, after a branch of directional light that near objects is penetrated enters concavees lens, diffuse on the convex lens, the reverse extending line of divergent rays gathers the focus place at convex lens, so imaging is at infinity behind the light planoconvex lens.Among Fig. 2, eyepiece (1) is convex lens, and the convex lens edge thickness is advisable with 1.5 millimeters, and place, edge radius of a circle is advisable with 20 millimeters, and its two circular arc places, longitudinal profile radius of a circle all is advisable with 125 millimeters.Less and the even thickness up and down of one section radius of eyepiece stalk (2), its inboard is threaded (5); Another section of eyepiece stalk radius increases gradually, and eyepiece is positioned at the end of this section.Object lens (3) are concavees lens, and the concavees lens center thickness is advisable with 1.2 millimeters, and place, edge radius of a circle is advisable with 15 millimeters, and its two circular arc places, longitudinal profile radius of a circle all is advisable with 31 millimeters.Lens materials is all K ₉Optical glass.Objective tube (4) is even thickness up and down, and one section of the objective tube outside one end is threaded.Object lens are fixed in the not threaded end of objective tube.The objective tube radius is less than the eyepiece stalk radius and by screw thread, and an objective tube just in time screws in an eyepiece stalk, and another objective tube just in time screws in another eyepiece stalk, and objective tube screws in behind the eyepiece stalk distance between the object lens and eyepiece fully and is advisable with 40 to 60 millimeters.Among Fig. 3, two pairs of lens barrels connect by connecting rod (6).

Claims

1. Objective lens, both sides are lens barrel, middle tool connecting rod is combined by convex lens and concavees lens, it is characterized in that: eyepiece is convex lens, and object lens are concavees lens, and the focal length of eyepiece is greater than object lens.

2. Objective lens according to claim 1 is characterized in that: the less and even thickness up and down of one section radius of eyepiece stalk, and screw thread is positioned at its inboard, and another section of eyepiece stalk radius increases gradually, and eyepiece is positioned at its end; Objective tube is even thickness up and down, and the objective tube screw thread is positioned at the objective tube outside, and object lens are fixed in the not threaded end of objective tube.

3. Objective lens according to claim 1 is characterized in that: the eyepiece stalk radius is greater than the objective tube radius, and objective tube by screw thread turn lens barrel, can be regulated the distance between eyepiece and the object lens by the eyepiece stalk that is threaded on it.

4. Objective lens according to claim 1, it is characterized in that: lens materials is all K ₉Optical glass.

5. Objective lens according to claim 1 is characterized in that: objective tube screws in behind the eyepiece stalk distance between the object lens and eyepiece fully and is advisable with 40 to 60 millimeters.