CN2585264Y

CN2585264Y - Micro-image analog eyepiece

Info

Publication number: CN2585264Y
Application number: CN 02286821
Authority: CN
Inventors: 林早; 何振中; 杨泽林; 张馨兰
Original assignee: 林早
Priority date: 2002-11-06
Filing date: 2002-11-06
Publication date: 2003-11-05
Anticipated expiration: 2012-11-06

Abstract

The utility model relates to a simulative eyepiece, particularly to a micro-image simulative eyepiece, which comprises a color liquid crystal display (1) and a lens assembly (3), wherein the lens assembly (3) is composed of a plurality of convex lenses, people can see images on the color liquid crystal display (1) through the lens assembly (3), and the distance between the lens assembly (3) and the color liquid crystal display (1) can be changed. In order to solve the problems that a diagnostic correct rate through a display screen is far lower than a diagnostic correct rate through a light microscope, especially puzzled miscellaneous diseases can be basically diagnosed only by the light microscope at present, the utility model provides the micro-image simulative eyepiece and can simulate an image displayed by the display screen to an image similar to that under a microscope to construct a diagnostic environment similar to that under the light microscope in a remote diagnosis, so the diagnostic correct rate can be improved.

Description

Microscopic image simulation eyepiece

Technical field

The utility model relates to a kind of simulation eyepiece, especially a kind of microscopic image simulation eyepiece.

Background technology

Raising along with scientific and technological level, long-range pathological diagnosis is grown out of nothing, become a kind of more common medical procedure gradually, in long-range pathological diagnosis process, the virologist comes disease is carried out analysis and judgement by the mode of observation display screen, rather than adopts the mode of the Direct observation microscope ocular that they are accustomed to.Though the picture resolution of display has surpassed the maximum resolution characteristic of human eye out and away at present, but reality is, by of the diagnosis of indicator screen diagnosis precision rate, can only use light microscopic basically far below diagnosis precision rate under the light microscopic, particularly difficult and complicated cases.

The origin cause of formation of this phenomenon mainly contains 2 points:

One, use light microscopic diagnosis and use the notice nature intensity of human eye in the screen diagnosis that very big difference is arranged, notice is not easy to concentrate when promptly comparing viewing microscope during the observation display screen.

Two, the virologist has been accustomed to this environment gradually in the long-term process of using microscope study and working, and has promptly produced the dependence that adjusts the telescope to one's eyes, and can influence its judgment and use indicator screen instead.

Summary of the invention

For addressing the above problem, the utility model proposes a kind of micro-image simulation eyepiece, the image simulation that indicator screen can be shown be the image that is similar to microscopically, thus in remote diagnosis, construct one with light microscopic under similar diagnostic environment, the raising accurate rate of diagnosis.

A kind of microscopic image simulation eyepiece comprises colour liquid crystal display device, and human eye can be by its lens combination of seeing distance variable between colour liquid crystal display device image and itself and the colour liquid crystal display device, and described lens combination is made of some convex lens.

After adopting the utility model,, avoid and the inaccurate judgement that cause incompatible of neo-confucian due to illness to display image screen at the display environment that display environment can be modeled as under the situation about diagnosing under the light microscopic by screen.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model.

Embodiment

As shown in Figure 1, the utility model mainly is made of housing 2, colour liquid crystal display device 1, lens combination 3 three parts, its middle shell 2 is closed colour liquid crystal display device 1 and lens combination 3, only allow light to pass through from lens combination 3, one side that promptly can only scioptics group 3 is seen the image that colour liquid crystal display device 1 is shown, adopt housing 2 sealings can reduce the influence of extraneous light as far as possible, thereby obtain the environment similar with microscopically.Obviously when no housing 2, the lens combination 3 that is made of convex lens is meant independent used lens combination 3, and promptly lens combination 3 itself comprises the shell of corresponding similar telescope lens barrel.

Why adopt colour liquid crystal display device 1 but not conventional cathode ray tube (CRT) display, its reason is very simple, colour liquid crystal display device 1 has high resolving power, volume is little, low power consumption and other advantages, but generally speaking, the volume of colour liquid crystal display device 1 is still bigger, the micro-image simulation eyepiece that constitutes thus also can be bigger, under the portable situation of needs, can select reflection type liquid crystal (LCOS for use, Liquid Crystal on Silicon) display, LCOS display volume is little, the resolution height is suitable for nearly eye and shows, can make helmet-type even spectacle device.

Lens combination 3 has multiple choices, usually can constitute by some convex lens, concrete can adopt Ramsden ocular, promptly form by the plano-convex lens of two glass of the same race, the two focal length equates, convex surface in opposite directions, the plane is outside, distance between two lens equals 2/3 of each focal length of lens, control the distance between Ramsden ocular and the colour liquid crystal display device 1 this moment, make image position on the screen between the object space focal plane of the object space focal plane of the visor of Ramsden ocular and whole Ramsden ocular, can see imaging on the screen by Ramsden ocular like this,, be near-sighted point when imaging on the screen during near the object space focal plane of whole Ramsden ocular, the effect of its observation roughly is equivalent to situation about seeing by microscope, can cause asthenopia owing to see the picture of myopia point for a long time, therefore can adjust the distance between Ramsden ocular and the colour liquid crystal display device 1, make the object space focal plane of the close visor of picture on the screen, the observing effect of this moment is equivalent to picture has been pushed away far, is difficult for causing visual fatigue.Because the focal length of Ramsden ocular, its with screen on need satisfy certain relation between the big or small three of imaging on the distance, screen between the imaging, concrete numerical value can or be tested by mathematical computations and be obtained easily.

Clearly, because everyone eyesight and diopter all have difference, same individual also has difference in the different time, therefore need finely tune the distance between colour liquid crystal display device 1 and the lens combination 3, this partial content is a prior art, and multiple implementation is arranged.In the utility model, housing 2 is divided into two parts cylindraceous, colour liquid crystal display device 1 and lens combination 3 are positioned at a wherein part separately, by threads engaged, therefore rotate some parts cylindraceous and can correspondingly change distance between colour liquid crystal display device 1 and the lens combination 3 between these two parts.

Using method of the present utility model is as follows, vision signal with medical diagnosis is sent to colour liquid crystal display device 1 earlier, promptly produce corresponding picture on the display screen, this moment, rotary shell was wherein a part of, picture on the adjusting display screen and the distance between the lens combination 3 can obtain imaging on corresponding myopia point or the High eye point.

Claims

1, a kind of microscopic image simulation eyepiece, it is characterized in that: comprise colour liquid crystal display device (1), and human eye can be by its lens combination (3) of seeing distance variable between colour liquid crystal display device (1) image and itself and the colour liquid crystal display device (1), and described lens combination (3) is made of some convex lens.

2, microscopic image simulation eyepiece as claimed in claim 1, it is characterized in that: described colour liquid crystal display device (1) and lens combination (3) are arranged in the housing (2) that only can see lens combination (3) one side.

3, microscopic image simulation eyepiece as claimed in claim 2, it is characterized in that: described housing (2) is made of jointly two cylindric parts by threads engaged, and described lens combination (3) and colour liquid crystal display device (1) are positioned within one of them cylindric part separately.

4, microscopic image simulation eyepiece as claimed in claim 2, it is characterized in that: described colour liquid crystal display device (1) is the LCOS LCD.

5, as any described microscopic image simulation eyepiece in the claim 1 to 4, it is characterized in that: described lens combination (3) is for Ramsden ocular, and the image on the described colour liquid crystal display device (1) is between the object space focal plane of the object space focal plane of the visor of Ramsden ocular and whole Ramsden ocular.