CN2608997Y

CN2608997Y - Varifocus lens

Info

Publication number: CN2608997Y
Application number: CN 03236479
Authority: CN
Inventors: 张孟杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-22
Filing date: 2003-01-22
Publication date: 2004-03-31
Anticipated expiration: 2013-01-22

Abstract

The utility model belongs to a zoom lens in the optics field, which is characterized in that the lens is in a sealed hollow shape, and the lens wall on two sides is soft or hard, but at least one side is soft. The utility model has the advantages of simple structure, easy processing and manufacturing as well as low manufacturing cost. The hollow lens can input gas or all kinds of liquid through the liquid intake mouth, and the size through the air pressure and the hydraulic pressure through the inlet cavity to form a lens with different curved degree, realizing zooming aim.

Description

Zoom lens

Technical field

The utility model belongs to optical field, especially a kind of Zoom lens.

Background technology

Present optical lens all is to be made by the solid transparent material of hard basically, and its lens surface curvature is fixed, can not zoom, can only use as the lens of single focal length.This lens manufacture difficulty is big, complex process; When the needs zoom, the combination that needs to use a plurality of lens could realize that cost is higher.

Summary of the invention

The purpose of this utility model is to overcome the deficiency of prior art, provides a kind of simple in structure, and technology is simple, and cost is low, the lens that surperficial curvature is adjustable, varifocal.

The purpose of this utility model is achieved in that

Lens are the hollow shape of sealing, and the lens wall of its both sides is soft or hard, is soft but have a side at least.

If lens have outer rim, then outer rim is a hard; Liquid inlet port is installed on the lens; Described lens outer rim is shaped as circle, ellipse, polygon or other are irregularly shaped.

Advantage of the present utility model and good effect are:

1. the lens of hollow can be imported gas or various liquid by liquid inlet port, by the air pressure of input cavity or the size of hydraulic pressure, form the lens of different curvatures, realize pancratic purpose.

2. the closed structure that only constitutes of lens by the lens wall, the easy processing and fabricating of its lens wall, cost of manufacture is low.

3. the utility model is simple in structure, control easily, the outer rim shape can make circle, polygon or other are irregularly shaped, realizes more purposes.

Description of drawings

Fig. 1 is a structure cross-sectional schematic of the present utility model;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the flanged outward biconvex lens structure cut-open view of the utility model;

Fig. 4 is the flanged outward concavees lens structure of a utility model cut-open view.

Fig. 5 is the utility model biconcave lens structure cut-open view;

Fig. 6 is shaped as hexagonal synoptic diagram for the utility model outer rim.

Embodiment

Below in conjunction with accompanying drawing the utility model embodiment is further described:

The lens wall 1 of these zoom lens is made by light transmissive material, as plastics, organic glass, resin, nylon etc.The cavity 2 that the hollow shape of sealing is arranged in the lens wall, the lens wall of cavity both sides is that the light transmissive material of soft or hard is made, but it is soft having a side lens wall at least, left side lens wall as Fig. 1 is that soft light transmissive material is made, the vertical lens wall on right side is made for the hard light transmissive material, liquid inlet port 3 is installed on the lens wall, and this liquid inlet port is by bonding or splice and be packed on the lens wall.

Fig. 3 is a biconvex lens, and the lens wall of its bilateral is soft light transmissive material and makes, and its outer rim 4 is up and down made for the hard light transmissive material; Fig. 4 is equidirectional concavees lens, the front lens of its protrusion direction is soft, and rear lens is a hard, and its outer rim up and down is that the hard light transmissive material is made; Fig. 5 is a biconcave lens, and the lens wall of its bilateral is that soft light transmissive material is made, and its outer rim is up and down made for the hard light transmissive material.Hard lenses wall and soft lens wall can be by splicing or bonding way interconnects.

The outer rim of these zoom lens is shaped as circle (as Fig. 2), oval (not shown), polygon (Fig. 6 is a regular hexagon) or other irregularly shaped (not shown)s.

Can injecting gas in the cavity of zoom lens, the liquid of various different refractivities etc.

Principle of work of the present utility model is:

By liquid inlet port injecting gas, liquid in the lens cavity, under pressure, the soft side of lens wall is rising gradually, and curvature strengthens gradually, lens such as the convex lens of formation different focal, concavees lens.

Claims

1. Zoom lens, the lens wall is made by light transmissive material, it is characterized in that: lens are the hollow shape of sealing, and the lens wall of its both sides is soft or hard, is soft but have a side at least.

2. Zoom lens according to claim 1 is characterized in that: if lens have outer rim, then outer rim is a hard.

3. Zoom lens according to claim 1 is characterized in that: liquid inlet port is installed on the lens.

4. according to claim 1,3 described Zoom lens, it is characterized in that: described lens outer rim is shaped as circle, ellipse, polygon or other are irregularly shaped.