CN2473836Y

CN2473836Y - Stereo TV set

Info

Publication number: CN2473836Y
Application number: CN 01205374
Authority: CN
Inventors: 钱百成; 倪仕俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-02-15
Filing date: 2001-02-15
Publication date: 2002-01-23
Anticipated expiration: 2011-02-15

Abstract

Provided is a stereoscopic television, which is characterized in that a group of polarization films are evenly adhered in a longitudinal direction on inner side of existing television fluorescent screen, the width of the polarization films is equal to space therebetween. The eyeglass matched to watching the stereoscopic television signal includes one eyeglass of polarization lens and the other eyeglass of grey lens with about 25% or 75% transmittance. The utility model has a simple structure, low cost, and is compatible for conventional signals.

Description

A kind of stereoscopic TV

The utility model relates to a kind of stereoscopic TV.

At present, existing TV can be play the three-dimensional animation recreation of handling by computer, and also can wear methods such as postponing glasses between the light time and obtain stereo perception, but various reasons such as they are because the specification requirement complexity, the cost height and do not have practicality or popularize and be worth.

The purpose of this utility model provides a kind of stereoscopic TV that evenly is installed in the fluorescent screen inboard by one group of vertical polarizing coating.

The utility model is achieved in that between existing television screen glass bulb and grid (screen) and vertically evenly sticks one group of polarizing coating, the polarizing coating width equates with the interval, watch that the glasses that this three-dimensional television signal is worn are, an eyeglass is a polariscope, and another is the gray out of about 25% (circuit arrangements one) or about 75% (circuit arrangements two) for light transmittance.

Image-forming principle is as follows:

Television set receives two width of cloth images of the same object of two video cameras under taking simultaneously.The signal of left side video camera is made as A, and the signal of the right video camera is made as B.

Circuit arrangement one:

Signal A B

Signal processing 2A (electron bombard is not having on the position of polarizing coating) 8B-4A (electron bombard is having on the position of polarizing coating)

Light 2A (unpolarized) 4B-2A (polarised light) that sends out on the screen

The grey eyeglass of glasses polarized lenses (polarised light can not pass through) saturating about 25%

Arrive the signal A B of eyes

Circuit arrangement two:

Signal A B signal processing (electron bombard is not having on the position of polarizing coating) The light of sending out on (electron bombard is having on the position of polarizing coating) screen (unpolarized)

(polarised light) glasses polarized lenses (polarised light can not pass through) saturating 75% grey eyeglass arrives the signal A B of eyes

For scheme one, the signal that receives amplified to separate through detection obtain vision signal, again through separate obtain left and right video camera take the photograph signal A, B.A-signal intensity is increased 2 times reflect on the fluorescent screen and do not have on the intermembranous position of polarizing coating, increase 8 times and deduct 4 times of a-signal intensity and reflect on the position that polarizing coating is housed on the screen in another width of cloth signal B intensity.Do not have like this to send the natural daylight that light intensity is 2A on the intermembranous position of polarizing coating, the polarised light that sends light intensity (8B-4A)/2 on the position of polarizing coating is arranged.Polarizer on the glasses can not be by the polarised light on the screen (8B-4A)/2, have only by half of natural daylight 2A for A, grey lens transmission on the glasses is 25%, polarised light and natural daylight all can pass through, the light that sees through on the gray out is: 2A+ (8B-4A)/2=B, the light that just arrives eyes respectively with about two video cameras take the photograph identical.This programme fidelity is better, and light utilization efficiency equates with traditional three-dimensional film.

Scheme two: the utilance of considering scheme one light is low, has designed scheme two, and advantage is the utilance height, and shortcoming is that distortion is arranged, but but error correction.

Process is as follows, left camera signal A and right camera signal B, doing (8B-6A)/3 through circuit handles to reflect and is being unkitted on the screen on the intermembranous position of polarizing coating, send the natural daylight of intensity for (8B-6A)/3, the signal of circuit work (12A-8B)/3 processing reflects on the position that polarizing coating is housed on the screen simultaneously, sends the polarised light of (6A-4B)/3.Polarizer in this scheme can see through polarised light, thereby the light that sees through polarizer is [(6A-4B)/3+ (8B-6A)/3] ÷ 2=A, the light intensity that promptly arrives left eye is A, the transmitance of gray out is 75% in this scheme, thereby the light that sees through gray out is 75% * [(8B-6A)/3+ (6A-4B)/3]=B, and the light intensity that promptly arrives another is B.

The utility model advantage is that circuit changes a little and gets final product, thereby simple in structure because one deck polarizing coating only is installed between existing television screen glass bulb and grating, and cost is low, and can compatible classical signal.

Below in conjunction with accompanying drawing, be that example illustrates structure of the present utility model with the cathode ray tube.

Fig. 1 is affixed on the fluorescent screen inside generalized section for polarizing coating.

Fig. 2 is affixed on the plane partial schematic diagram of fluorescent screen inside for polarizing coating.

Wherein, 1, phosphor screen glass bulb 2, post the grid of polarizing coating

In Fig. 1, polarizing coating vertically evenly is attached between existing television screen glass bulb and the grating.Among Fig. 2, the width that grid (screen) is gone up polarizing coating equates with the interval.

Realization ratio of the present utility model is easier to, and on the production of kinescope line, sticks on polarizing coating and get final product after grating is produced, and other program is constant.Circuit is easier to be accomplished, only inserts a regulating circuit and get final product in former video amplifier circuit.

Claims

A kind of stereoscopic TV is characterized in that: vertically evenly stick one group of polarizing coating on the grid of existing television screen inboard, the polarizing coating width equates with the interval.