CN203535376U

CN203535376U - Optical front projection hard screen

Info

Publication number: CN203535376U
Application number: CN201320514238.7U
Authority: CN
Inventors: 王朋
Original assignee: (VISIONIC TECHNOLOGY CO LTD)
Current assignee: Zhejiang Weseni Technology Co ltd
Priority date: 2013-08-22
Filing date: 2013-08-22
Publication date: 2014-04-09
Anticipated expiration: 2023-08-22

Abstract

An optical front projection hard screen includes at least seven kinds of different optical structures which substitutes projection paint and a projection filter film. The optical structures are shown as follow: an anti-reflection protective layer used for raising the transmissivity of projection lights and preventing a screen from being scratched, an ambient light inhibition layer capable of effectively filtering and inhibiting ambient lights to make the image effect to be uninfluenced in strong ambient lights, a filter layer used for selectively filtering light beams, coming from a specific direction, of a projector, a main reflective array composed of tens of millions of micro reflective arrays, a substrate light permeation layer used for transition of penetration lights of the reflective array, a substrate light supplementing layer which has a light supplementing function and whose penetration lights re-reflect in to a main array body, and a solid and smooth force fixing layer used for protecting the substrate, wherein the above layers are precipitated or adhered sequentially. The optical front projection hard screen has advantages of a large size, high sharpness and brightness, an anti-ambient-light effect, an anti-dazzle effect, high contrast, a wide visual angle (with 178 degrees in the vertical direction and 178 degrees in the horizontal direction), and an anti-sunlight effect in a short focal length.

Description

The hard curtain of optical front projection

Technical field

The utility model relates to the hard curtain of optical front projection, the hard curtain of optical front projection that specifically a kind of at least seven kinds of different optical structures that replace projection paint and projection filter film form.

Background technology

At present, no matter be the medium-sized and large-scale optical projection system in portable small-business demonstration, multimedia conferencing chamber, classroom, stadiums, church, commercial location, large-scale auditorium, virtual demonstration is the jumbotron optical projection system of great Dao cinema even, they otherwise adopt before throwing mode, or adopt rear-projection mode.Front throwing and rear-projection are exactly the whole of shadow casting technique.Before so-called, throwing, briefly, is exactly the installation site and the homonymy of spectators at screen of projector, and the ray cast that projector sends arrives screen, forms image on screen, and then light reflexes to eye again.

Similarly, so-called rear-projection, is exactly the installation site of projector and two sides that spectators lay respectively at screen, and the light that projector sends is from a side direct projection of screen to screen, and light sees through screen and enters spectators' eyes.Front throwing screen can be made arbitrary dimension, but the light that need to control environment just can obtain good viewing effect.Be highly suitable for having a lot of spectators' darkroom environment.Rear projection screen is not so good as front throwing in size, but does not need the light that controls environment.Relatively be applicable to spectators few, ambient light and the good environment of illumination.

And divide from projection pattern according to screen, be divided into front projection screen (reflective) and the large class of back projection screens (transmission-type) two.Front projection screen is not subject to the restriction (customizable) of size, but can be subject to the impact of surround lighting to cause the degradation of picture contrast.Rear projection screen picture associative perception is stronger, is not subject to the impact of surround lighting, can correctly reflect information quality, so picture color is gorgeous, and lifelike image.

The optical texture that existing positive light projector is learned hard curtain generally comprises projection paint and projection filter film, and this structure not only makes image quality not high, and sharpness is not spent, and luminance uniformity, overall contrast to and anti-surround lighting etc. on there is technical barrier.

Utility model content

The utility model provides a kind of optical front projection hard curtain, with solve in prior art luminance uniformity, overall contrast to and anti-surround lighting etc. on there is the technical matters of technical barrier.

The utility model replaces projection paint and projection filter film with seven kinds of different optical textures specifically, is specifically followed successively by: in order to increase projection ray's percent of pass and prevent screen scratch transmission increasing protective layer, to surround lighting effectively filter and suppress to make the impregnable surround lighting inhibition layer of environment high light hypograph effect, play selective filter from filter layer, the principal reflection array being formed by tens million of micro-reflective arrays of the light beam effect of specific direction projector, for reflective array, permeate the substrate light pervious course of light transition; Unique light filling function, its infiltration light reflect the smooth solid power layer of becoming owner of the substrate light filling layer of array body, firm substrate protection again, and the above layer is precipitation or laminating successively.The utlity model has the advantage of anti-solar effect in large scale, high definition, high brightness, anti-surround lighting, anti-dazzle, high-contrast, wide viewing angle (vertical 178 degree, left and right 178 degree), short focal length situation.

Accompanying drawing explanation

Fig. 1 is the optical texture exemplary plot of the hard curtain of the utility model optical front projection.

Embodiment

Below in conjunction with accompanying drawing, illustrate the utility model.

Refer to Fig. 1, a kind of positive light projector is learned hard curtain, comprises at least seven kinds of different optical textures that replace projection paint and projection filter film: be specifically followed successively by: in order to increase projection ray's percent of pass and prevent screen scratch transmission increasing protective layer 1, to surround lighting effectively filter and suppress to make the impregnable surround lighting inhibition layer 2 of environment high light hypograph effect, play selective filter from filter layer 3, the principal reflection array 4 being formed by tens million of micro-reflective arrays of the light beam effect of specific direction projector, for reflective array, permeate the substrate light pervious course 5 of light transition; Unique light filling function, its infiltration light reflect the smooth solid power layer 7 of becoming owner of the substrate light filling layer 6 of array body, firm substrate protection again, and the above layer is precipitation or laminating successively.Principal reflection array 4 is comprised of tens million of micro-reflective arrays, after receiving light beam, by the comprehensive reflection of light, increases visible angle; Substrate light pervious course 5 is for reflective array infiltration light transition; Substrate light filling layer 6 unique light filling function, infiltration light reflects again becomes owner of array body; The substrate protection that smooth solid power layer 7 is firm, makes full screen smooth straight.The utlity model has the advantage of anti-solar effect in large scale, high definition, high brightness, anti-surround lighting, anti-dazzle, high-contrast, wide viewing angle (vertical 178 degree, left and right 178 degree), short focal length situation.

In order to increase projection ray's percent of pass and to prevent that the transmission increasing protective layer 1 of screen scratch is specially the ultra-thin transparent polystyrene of high rigidity, the transparencies such as Polyvinylchloride of comparing other are higher, hardness is better, thereby can be anti-scratch and increase projection ray's percent of pass, to the effective filtration of surround lighting and inhibition, make the impregnable surround lighting inhibition layer 2 of environment high light hypograph effect contain a kind of zigzag grating hole, compare mesh grid hole or louvre type grating and when stopping the surround lighting of entirely putting position, reduced the physical barriers to imaging light, play selective filter and be specially gray out from the filter layer 3 of specific direction projector light beam effect, owing to being that the surround lighting that zigzag grating has few part can be mingled in the comprehensive projector's optical fiber passing through, utilize gray out in visible-range, to have certain absorption function that this only surround lighting is stopped to filtration, without any color, change, the principal reflection array 4 being comprised of tens million of micro-reflective arrays is specially every square metre of water droplet filter of ten million nearly, the reflection of light upper angle of comparing other rhomb-scopes or scalariform Jing Dui projector is wider, for the substrate light pervious course 5 of reflective array infiltration light transition, being specially radius is only rounded vinyl acetate between 0.5～5 μ m, vinyl acetate is transparence, there is each other very strong pulling force can well transition to penetrate the light of reflective array, unique light filling function, its infiltration light reflect the glass fibre that the substrate light filling layer 6 of becoming owner of array body is specially ater again, ater is mainly built a kind of being similar to " cinema's details in a play not acted out on stage, but told through dialogues ", allow colors of image accomplish ultimate attainment color rendition, glass fibre has the light reflection function as similar minute surface, thereby the smooth solid power layer 7 that provides the light filling under details in a play not acted out on stage, but told through dialogues, firm substrate to protect is specially fiberglass or the resin that thickness can be curling in 1.5 millimeter,, the above layer is precipitation or laminating successively.

Disclosed the utility model preferred embodiment is just for helping to set forth the utility model above.Preferred embodiment does not have all details of detailed descriptionthe, and also not limiting this utility model is only described embodiment.Obviously, according to the content of this instructions, can make many modifications and variations.These embodiment are chosen and specifically described to this instructions, is in order to explain better principle of the present utility model and practical application, thereby under making, technical field technician can understand and utilize the utility model well.The utility model is only subject to the restriction of claims and four corner and equivalent.

Claims

1. a positive light projector is learned hard curtain, it is characterized in that, comprise at least seven kinds of different optical textures that replace projection paint and projection filter film: be specifically followed successively by: in order to increase projection ray's percent of pass and prevent screen scratch transmission increasing protective layer, to surround lighting effectively filter and suppress to make the impregnable surround lighting inhibition layer of environment high light hypograph effect, play selective filter from filter layer, the principal reflection array being formed by tens million of micro-reflective arrays of the light beam effect of specific direction projector, for reflective array, permeate the substrate light pervious course of light transition; Unique light filling function, its infiltration light reflect the smooth solid power layer of becoming owner of the substrate light filling layer of array body, firm substrate protection again, and the above layer is precipitation or laminating successively.

2. a kind of positive light projector as claimed in claim 1 is learned hard curtain, it is characterized in that the ultra-thin transparent polystyrene that transmission increasing protective layer is high rigidity.

3. a kind of positive light projector as claimed in claim 1 is learned hard curtain, it is characterized in that, surround lighting inhibition layer contains a kind of zigzag grating hole.

4. a kind of positive light projector as claimed in claim 1 is learned hard curtain, it is characterized in that, filter layer is gray out.

5. a kind of positive light projector as claimed in claim 1 is learned hard curtain, it is characterized in that, the principal reflection array being comprised of tens million of micro-reflective arrays is every square metre of water droplet filter of ten million nearly.

6. a kind of positive light projector as claimed in claim 1 is learned hard curtain, it is characterized in that, it is only rounded vinyl acetate between 0.5～5 μ m that substrate light pervious course is specially radius, and vinyl acetate is transparence, has each other very strong pulling force with transition, to penetrate the light of reflective array.

7. a kind of positive light projector as claimed in claim 1 is learned hard curtain, it is characterized in that, substrate light filling layer is specially the glass fibre of ater.

8. a kind of positive light projector as claimed in claim 1 is learned hard curtain, it is characterized in that, the smooth solid power layer of substrate protection be can be curling fiberglass or resin.