CN2037078U

CN2037078U - Holographic equipment for taking human image

Info

Publication number: CN2037078U
Application number: CN 88215538
Authority: CN
Inventors: 王其祥; 沈撰曾
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-10-29
Filing date: 1988-10-29
Publication date: 1989-05-03

Abstract

The utility model relates to a holographic technique applying field, particularly a holographic recording device for human body images. The utility model is composed of a shooting device for a holographic original image and a reproducing device of the holographic original image, which respectively adopt pulse laser light and continuous laser as light sources. When the holographic original image is shot, a diffuser is added in an object light path to prevent laser form enjuring people's eyes. The adoptive olographic photoplates are respectively the holographic photoplates with high sensitivity and high resolution. The utility model has the advantages of simple structure, clear shot human images, large area, etc. The utility model can be widely applied to holographic advertisement, holographic labels, holographic souvenirs and handicrafts, holographic painting albums, etc.

Description

Holographic equipment for taking human image

The utility model relates to the application of holographic technique, especially relates to the holographic recording to human body image.

Holographic technique has obtained to use widely in photography, but to the human body holographic photography, because when adopting laser to make light source, people's eyes are subjected to the rayed of laser easily and cause damage, so this technology is used for the human body holographic photography, especially make a kind of camera, the report of seeing is few, as U.S. Pat 4, propose a kind of method of recorder's volume image in 602,849, but the element of required employing is many, and complex structure, also there are many technical matterss to be solved that have as practical widely.

The purpose of this utility model is to develop special-purpose people and resembles pulse holography device and corresponding light path system thereof, and development solves the amplifying technique that special-purpose people resembles the holofilm and the hologram of photography.Another purpose is that the range of application with holographic technique expands the people to and resembles this field of photography, on the one hand in order to beautify human life, in order to be recorded in the most memorable three-dimensional transient state image in the mankind's activity, can be used for making holographic advertisement in addition on the other hand.Another purpose is that holographic people resembles each sport technique segment that photography not only relates to holographic technology, but also relates to laser to the research of the safe dose of human eye and determining of safety standard.When the pulse holography art was used for the head shot, sixty-four dollar question was how to protect human eye, make its injury that is not subjected to light pulse, and in fact for an images, most critical partly was the expression of human eye, and human eye is the position of the easiest Stimulated Light damage.Adopt a kind of means to make human eye be subjected to illumination dose in the safety allowed band so how to solve, record one of people as if the purpose of this utility model truly.

The device that the utility model proposed is made up of two parts, and first is for to resemble photography with pulse laser to the people, and hologram image is recorded on the highly sensitive holographic base plate; Second portion is recorded in image on the above-mentioned holographic base plate as thing with resultant, utilize continuous laser that prepared hologram is remake hologram one time again, with the picture record on the above-mentioned holographic base plate on the high-resolution holographic base plate of another kind.

The basic technical scheme that utilizes said apparatus to take people's image hologram is based under the prerequisite that the protection human eye is perfectly safe, and obtains high-quality people's image hologram.For this reason, adopt secondary holographic photography method, promptly, directly human body is carried out holographic photography, obtain master people image hologram for the first time with pulse holography device part; With the continuous laser of continuous wave gas laser output, the master hologram that obtains for the first time being duplicated for the second time, is to be thing with the master hologram, allows laser pass through it, records the information in then on the high-resolution holographic plate of another piece.

Realize that the people resembles holographic key and is: when taking hologram for the first time, used holofilm must be highly sensitive, and the area of egative film is less.Like this, when people face in the illumination that is subjected to light pulse illumination hour, make egative film under the help of optical lens, still can obtain necessary exposure.Secondly, in order to protect eyes, make not direct irradiation people's face of laser pulse; but make laser irradiation frosted glass earlier; diffused light with frosted glass forms real point on the retina of human eye again, and it is enough near that the distance of frosted glass and people's face is wanted, and can be placed on it in the near point of human eye.Facts have proved, adopt the device that the utility model proposed to take people's image hologram, can never cause damage to human eye, this is because when carrying out above-mentioned shooting, and the illumination of the laser beam that human eye is suffered is far away from human eye suffered illumination under general sunlight.Take for the first time people's image hologram of gained, just intactly write down the thing light wave of human body, can use highly sensitive holographic recording base plate.When making hologram for the second time, need to use high resolving power, large-area holofilm, and on the shockproof holographic worktable of high stability, duplicate by the people's that is taken requirement, take with respect to utilizing for the first time pulse laser, duplicate for the second time available continuous laser, the also corresponding lengthening of doubling time.So; adopt the hologram of reproducing unit making for the second time; can accomplish both to have protected people's eyes, obtain to make the hologram of person taken picture's satisfaction again, resemble the eye-safe protection question that the holographic technique midium or long term awaits solving effectively thereby solved the people.

Accompanying drawing 1 is the filming apparatus part of the holographic former domain of this device.

Accompanying drawing 2 is reproducing unit parts of the holographic former domain of this device.

Be further described below in conjunction with the embodiment of accompanying drawing the utility model device:

In the accompanying drawing 1,9, the expression of each figure number is that 1 is pulsed laser, for example: pulsed ruby laser, M1 are semi-transparent semi-reflecting lens, M2, M3, M4 is a plane mirror, L1, L2, L3 is a negative lens, and 2 is continuous wave laser, is helium-neon laser, O resembles object for the people that is taken, and D is the diffused light body, as frosted glass, S is a thing light, and R is a reference light, and W is for duplicating light.

Concrete enforcement is: by pulsed laser, as ruby laser, the pulsed light that sends is divided into object beam S and reference beam R through M1, thing light S is directive diffuser D after negative lens L1 disperses, and the diffused light of Xing Chenging is mapped on the human body O thus, and the light by human body O reflection projects holographic base plate H1 again.Reference beam R, through negative lens L2 diffusion, projects on the holographic base plate H1 as reference light after M3 and the M4 reflection through M2, and S light and R light coherent imaging on H1 form master hologram H1.

During with gained master hologram replication, adopt continuous wave laser, as neon-helium laser 2, send continuous light W by it, through projecting on the master hologram H1 after the negative lens L3 diffusion, W light transmission H1 projects on another high-resolution reproducing holographic plate H2.Final acquisition is clear, high-resolution people's image hologram H2.

In specific embodiment, what pulse laser was used is emission 6943

The Ruby laser instrument, continuous laser is to adopt by 6328 of He-Ne laser instrument emission

Laser, holographic plate H1 are the holographic base plate of CrAgBr component, and its sensitivity is 0.3-0.7 μ j/cm ², H2 is a high-diffraction efficiency, the holographic base plate of high resolving power, and resolution is 6500-7500 bar lines per millimeter.

The captured people's image hologram of the utility model device can be used as holographic advertisement, holographic label, holographic souvenir and handicraft, can make holographic picture album even, common picture album is leaped 3 dimensional drawing from 2 d plane picture, and these use the prospect that all has practical value and further develop.

The advantages such as the utility model device has simple in structure, and element is few, and it is clear that the people of shooting resembles, and area is big.

Claims

1, a kind of people resembles holography system, it is characterized in that described device comprises two parts, i.e. the reproducing unit of the filming apparatus of holographic former domain and holographic former domain, described filming apparatus is by pulsed laser 1, semi-transparent semi-reflecting lens M1, plane mirror M2, M3, M4, negative lens L1, L2, the holographic base plate H1 of diffuser D and high sensitivity forms, described reproducing unit is by continuous wave laser 2, negative lens L3, and holographic base plate H1 of master and reproducing holographic base plate H2 form.

2, resemble holography system by the described people of claim 1, it is characterized in that: described pulsed laser is a pulsed ruby laser, and described continuous wave laser is a helium-neon laser.

3, resemble holography system as claim 1,2 described people, it is characterized in that the holographic base plate H1 of described master is highly sensitive holographic base plate, its sensitivity is 0.3-0.7 μ j/cm ², described reproducing holographic base plate H2 is a High Resolution Plate, its resolution is 6500-7500 bar lines per millimeter.