CN2224446Y - Animated-drawing demonstration instrument - Google Patents

Abstract

The utility model relates to an animated picture demonstration device which belongs to the science education device of culture articles class and is designed by using the polarization principle of light. The utility model is composed of a light source box and a replaceable picture board. A polarizing plate is arranged on a micromotor shaft in the light source box. The corresponding parts of the picture board is stuck with a polarization detecting strip. The polarizing plate and the polarization detecting strip can rotate corresponding when the picture is illuminated by the transmission illumination mode, causing light intensity of the corresponding parts of the picture to generate regular variation from strong to weak or from weak to strong. Thus the abstract and static demonstrating hanging picture can realize vivid and imagic dynamic display. The understanding can be deepened; the publicizing and teaching effect can be increased. The utility model has the advantages of simple structure, low cost, wide application range and good operability, and can be suitable for use in the any environment without direct irradiation of strong light.

Description

The dynamic picture demonstrator

The utility model belongs to cultural goods science and education instrument class.

In recent years utilize the polarisation of light principle, on imparting knowledge to students with projector, make the region of interest of projection filmed visuals realize that the technology of dynamic demonstration has application, the structure of its technical scheme is by the supporting member of housing, first adnexa spare and cooling blower, is arranged with in proper order in housing: spherical reflector, light source, condenser, Fresnel Lenses group, object carrier plate, the projection film (positive) that is pasted with the light polarizing film stick, polariscope, projection objective, plane mirror and screen are formed.It realizes that principle that dynamic menu shows is: polarizing coating is cut into stick (calling the analyzing bar in the following text) by the polarization direction of different needs, stick on and draw on the good projection film, this film is put on the object carrier plate of what projector, at distance film one determining deviation place, putting one can locate with outer rim, and can be with the polariscope (calling polarizer slice in the following text) of outer rim driven in rotation; Make projector work, the rotation polarizer slice, the focal length of adjustment projection objective is imaged in the screen filmed visuals; Bright, dark alternate has taken place because of polarisation of light makes the light intensity of the region of interest that is imaged on the film in the screen in the projection light of projector after being projected to the polarizer slice of picture through analyzing bar and rotation, formed dynamic picture in people's the visual experience.

Its not enough place is: the draw craft of projection film is strong, the poor heat stability of the higher and film sheet base of cost of reproduction, yielding under the strong illumination of imaging system, influence demonstration effect, polarizer slice places the imaging projecting light path, make its rotation, just need establish locating rack, drive complex structure, cost height again from the edge.Because utilize projector to realize dynamic demonstration, the utilization factor of the light source luminous energy of projector own is just not high, add analyzing bar and polarizer slice the analyzing of light is blocked, can reduce many again by the luminous energy that projection objective is projected to imaging in the screen.Technique scheme can only can reach practical effect in darker environment on the high-power and high-luminance projector, so promote difficult.

The purpose that the utility model " dynamic picture demonstrator " proposes provides a kind of simple in structure, applied range, and cost is low, and operability is good, and the power consumptive province can be used in the environment of any non-high light direct irradiation; Teaching collection of illustrative plates picture is easy to get, suitable batch production, " dynamic picture is drilled instrument " that is easy to promote; Make abstract static hanging demonstration chart realize image, dynamic demonstration true to nature sharpens understanding, improve teaching efficiency.And the landscape picture can be simulated nature, and realize real dynamically demonstration, be used for teaching or environmental decoration; Can also be applicable to the advertising of dynamic menu.The dynamic demonstration effect of " dynamic picture demonstrator " realizes the ratio of performance to price of dynamic demonstration with adopting the other technologies scheme, and it is good to the utlity model has performance, the good effect that price is low.

The technical solution of the utility model is to aforesaid existing supporting member and cooling blower by housing, first adnexa spare, is placed with the improvement of the prior art of spherical reflector, light source, condenser, Fresnel Lenses group, object carrier plate, the projection film that is pasted with the light polarizing film stick, polariscope, projection objective, plane mirror and screen formation in the housing successively.

The utility model " dynamic picture demonstrator " is made of pedestal 1, housing 2, power board 3, reflexed light film 4, support 5 and 5-1, light source 6, micromachine 7, connection dish 8, polarizer slice 9 and pictute plate 10.

Being to utilize the polarisation of light principle---i.e. when relatively rotating between the polarizer slice 9 of utilization rotation and the static analyzing bar 8, the variable angle of the correspondence of generation is made the principle that transmitted light intensity has taken place to change.

Arrange like this: " at the bottom of the box " portion and frame inwall position at the housing 2 that is shallow flat box-like, edge-on shape are provided with reflexed light film 4, utilize effect to improve light source.Support 5 and 5-1 is positioned at fluorescent light source 6 and micromachine 7 in the housing 2 respectively.Connection dish 8 will apply the crystallite material by transparent panel, be the axle connection of polarizer slice 9 with the micromachine 7 of garden plate-like, rotation synchronously.The dual side-edge frame of housing 2, nearly edge respectively is provided with " Jiong " type, can be for pictute plate 10, the guide groove A that packs into and locate; Take out according to being provided with to make in pictute plate 10 top, so as more to renew a pictute plate 10 concavity get tankage B, on top the frame position also is provided with exhausr port D; Lower frame and pedestal 1 connect, and are provided with air intake opening C; The duty of the power supply of light source 6 and micromachine 7 is by power board 3 controls.The pictute plate 10 that can arbitrarily change is according to need partly formed by three: the picture 10-1 that shows demo content, be to apply transparent protective film by the printed matter of hanging demonstration chart or honourable decorative picture the back side is adhesive on the transparent panel 10-2, another side at transparent panel 10-2, the region of interest of corresponding picture, by different analyzing diffraction of light directions, be adhesive with analyzing bar 10-3, above-mentioned 10-1 according to need, 10-2 and 10-3 can plastic packaging be one, is easy to preserve; When if demo content replacing frequency is not high, also the front of picture 10-1 can be sticked on the glass plate (transparent panel 10-2) with transparent adhesive tape, the back side at picture 10-1, the region of interest of corresponding picture is pasted analyzing bar 10-3, the pictute plate 10 of making like this, it is all not too convenient to change and preserve, but light transmission is better.

Above-mentioned utility model " dynamic picture demonstrator " is actually by the two large divisions and forms---promptly constitutes by transmissible optical source case and removable pictute plate 10.

Owing to adopted with printed matter existing, that be easy to get, can produce in batches and made pictute plate 10, adopted daylight lamp to do light source.To pictute plate 10 implement closer distance, the transmission-type illumination, realize the demonstration of direct decoration type in prior art, utilizing complicated optical system, projection imaging is demonstrated, the utility model has been realized simple in structure, has reduced light illumination power, and cost is low.Employing daylight type cold light source---daylight lamp is done light source 6, compare with the plain lamp source of halogen tungsten of the prior art, reduced power consumption, economize on electricity, colour rendering is good, and thermal radiation is few, be provided with air intake opening C and exhausr port D, carry out the natural ventilation heat radiation, the work that both can ensure safety need not to establish cooling blower of the prior art.Polarizer slice 9 is by connection dish 8 and 7 connections of micromachine, and rotation has realized that drive form is simple synchronously.Directly pictute plate 10 is carried out the transmission-type direct illumination of closer distance with light source 6, the light intensity of picture is easy to be higher than environmental light intensity, demonstrates so can adapt in the environment of various non-high light direct irradiations, and adaptability is good.The operation essence of this utility model is that pictute plate 10 is inserted light-source box, connect the power supply of fluorescent light source 6 and micromachine 7 and can implement demonstration, guarantee image quality relatively with need adjusting focal length and reflection angle in the prior art, realized simple to operate, effect such as unfailing performance is good.

The utility model also can will be shallow flat box-like, " at the bottom of the box " portion of the housing 2 of edge-on shape---be that backboard removes, the housing 2 of the square frame shape that one-tenth is made of frame, in two edges of dual side-edge frame, making the two sides all has guide groove A and gets tankage B, can divide two faces to insert two width of cloth pictute plates 10, micromachine 7 is selected the output of armature spindle both-end for use, two sides at light source 6 respectively are provided with a polarizer slice 9 on motor shaft, realize two-way demonstration, are beneficial to science popularization propaganda and education and advertising.

Fig. 1 is the structural representation of facing of the present utility model, wherein has part pictute plate 10 and part to be the polarizer slice 9 of garden plate-like.

Fig. 2 is Fig. 1 M-M ' section side-looking structural representation.As seen get tankage B, air intake opening C, exhausr port D and general arrangement.

Fig. 3 is N-N ' section plan structure synoptic diagram of Fig. 1, and visible guide groove A reaches and always arranges.

Fig. 4 is the cross-sectional view of overlooking when realizing two-way demonstration, has two width of cloth pictute plates 10 to insert the light-source box that is made of frame, and this light-source box inner light source 6 and micromachine 7 are supported on the frame by support 5 and 5-1.

The utility model can be realized like this: pedestal 1 and housing 2 can be injection mo(u)ldings; Also can with plastic plate and section bar cementation and formation.Both sides frame near side (ns) is led pomegranate A along " door " type of locating will guarantee pictute plate 10, placement imports smooth and easy and locatees good, frame forward position portion on top, be provided with and guarantee take out and the pictute plate 10 convenient moulding of getting tankage B smoothly of packing into will keep harmonious with bulk shape as far as possible, and consider can not overslaugh polarizer slice 9 rotation and the transmission of light source 6 luminous energy, the exhausr port D that upper side frame is provided with can be as venetian blind type, guarantee that promptly the well-ventilated considers to reduce outside amount of exposure again as far as possible, avoid influence demonstration effect.The air intake opening C that the boundary frame area place is provided with also can adopt venetian blind type, has guaranteed that promptly overall construction intensity guarantees the available ventilation area again.In housing 2, reach frame portion, cover the reflexed light film 4 of lining layer of aluminum pool or aluminium oxide terylen film, to improve the efficiency of light energy utilization of light source 6.Support 5 and 5-1 supports the central part that is positioned in the housing 2 with annular daylight lamp pipe light source 6 and micromachine 7 respectively.Light source 6 also can be with straight type fluorescent tube, it arrange in the time of will considering pictute plate 10 transilluminations, and intensity of illumination evenly gets final product substantially.In order to realize the nearer effect true to nature of simulation to the dynamic change speed of 10 demo contents of pictute plate, micromachine 7 optional DC micromotors, motor speed easy to control; Select for use rotating speed also passable at 40～80 rev/mins ac synchronous motor.The purpose that power board 3 is set is the duty of control light source 6 and micromachine 7.If when selecting direct-flow micromachine 7 for use, will be provided with on the power board 3, can adjust the fairing of voltage, so that the working speed of control micromachine 7.

The utility model utilizes the polarisation of light principle to make.The crystallization of some crystallite materials is by certain orientation, tactic, and can absorb the light vibration in a certain deflection, and vertically the light of this direction can vibrate and passes through.The making of polarizer slice 9 and analyzing bar 10-3 is: will as: things such as iodine sulfate are coated in and are the garden plate-like, on the transparent thin board (organic glass or clear plastic thin plate all can), make polarizer slice 9, also can paste polarizing coating being on the plate-like transparent panel of garden, be positioned on the axle of micromachine 7 rotation synchronously by connection dish 8; Will as: things such as iodine sulfate be coated in as: on the transparent plastic films such as terylen membrane, according to different needs cut into stick analyzing bar 10-3.

The cutting of analyzing bar 10-3 will be made according to Malus (MaLus) law.The Malus law formula:

I＝I ₀COS ²α

I: transmission light intensity

I ₀: the polarization light intensity

α: polarizing plate and analyser plate, angle between two polarization directions.

According to formula as can be known, polarization angle α between polarizer slice 9 and analyzing bar 10-3 forwards 90 ° to by 0 °, polarized light by strong commentaries on classics a little less than, transmitted light is promptly dark by bright commentaries on classics, and when angle α went to 180 ° by 90 °, polarized light then grew in strength, just bright by dark change again, this reality is novel to be exactly to utilize this intensity variations, and makes this intensity variations (the continuous rotation of polarizer slice 9) continuously, realizes simulating the dynamic demonstration of various objects.So just can dynamically need, the transparent membrane that applies the crystallite thing is pressed different angles, cut into little stick and make analyzing bar 10-3 according to picture 10-1 content of pictute plate 10.Pictute plate partly is made up of picture 10-1, transparent panel 10-2 and analyzing bar 10-3 three.Selecting for use of picture 10-1 can be papery, and the collection of illustrative plates of printed matter plastic film or other materials all can be made the material of picture 10-1, the Freehandhand-drawing drawing or the amplification of taking pictures, or the erect image film also can.Because of being that the transillumination mode realizes demonstration, so picture can not two-sidedly be arranged.Transparent panel 10-2 is skeletons of pictute plate 10, requires printing opacity evenly to get final product substantially, as: transparent plastic sheet or thin glass plate can be as the materials of transparent panel 10-2.After sticking on picture 10-1 back side on the transparent panel 10-2, picture partly (front) can apply the layer of transparent glue-line, and is durable with the protection picture.If the tree of transparent panel 10-2 material transparency is good, also picture (front) can be sticked on the transparent panel with transparent adhesive tape (as DG-4 tackifier) as thin glass plate; The region of interest of corresponding picture at the back side of picture 10-1 according to dynamically needing, on sticker is arranged on demand with the analyzing bar 10-3 of different polarization direction, has just made pictute plate 10.After also three part stickups can being arranged, plastic packaging is preserved and is used for " one " is convenient to.

Do to decorate or the advertisement propaganda and education time spent, have than the large format picture and will do dynamic demonstration, a polarizer slice 9 may be difficult for covering the region of interest that need dynamically show, several polarizer slices 9 can be set cover region of interest respectively, can be by a motor-driven, also can drive respectively, note that at this moment the rotating speed of each polarizer slice will need be complementary according to picture by several motors.

To sum up state, this reality is novel realized simple in structure, cost is low, applied range, operability is good, can use in the environment of any non-high light direct irradiation, picture is easy to get, easily does, suitable batch production, the suitable good effect of promoting.

Claims (2)

1. a dynamic picture demonstrator is made of pedestal 1, housing 2, power board 3, reflexed light film 4, support 5 and 5-1, light source 6, micromachine 7, connection dish 8, polarizer slice 9 and pictute plate 10, it is characterized in that:

A. on housing 2, be provided with can for pictute plate 10 pack into and " Π " shape guide groove A that locatees and concavity get tankage B, also be provided with air intake opening C and exhausr port D;

B. device has reflexed light film 4 in housing 2;

C. on 7 of micromachines the polarizer slice 9 that is the garden plate-like is housed, polarizer slice 9 is to apply the crystallite thing, can paste maybe that the transparent panel of polarizing coating makes, and can adorn one, also can adorn more than two.

D. pictute plate 10 is made up of picture 10-1, transparent panel 10-2 and analyzing bar 10-3, and picture 10-1 is the printed matter or the photo of amplification, also can be the erect image film;

E. be provided with the power board 3 of control light source 6 and micromachine 7 duties;

F. light source 6 is fluorescent tubes.

2. dynamic picture demonstrator according to claim 1 is characterized in that: housing 2 can be made of frame, can carry out two-way demonstration respectively at two face devices, two width of cloth pictute plates 10.

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