CN204595421U - Can be used for the projection screen of strong light environment - Google Patents
Can be used for the projection screen of strong light environment Download PDFInfo
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- CN204595421U CN204595421U CN201520316382.9U CN201520316382U CN204595421U CN 204595421 U CN204595421 U CN 204595421U CN 201520316382 U CN201520316382 U CN 201520316382U CN 204595421 U CN204595421 U CN 204595421U
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Abstract
A kind of projection screen that can be used for strong light environment, it is characterized in that, this projection screen comprises base material and projection imaging layer, the side spaced surface of described base material be provided with several transverse directions and the groove be parallel to each other, in described groove, be filled with the light absorbent disturbed imaging to reduce surround lighting for absorbing light, what described projection imaging layer was compound in described base material establishes a reeded side surface.The utility model forms the groove at the interval that is parallel to each other on plastic basis material by the mode such as roll-in or engraving, and by filling black ink or black paint blocks and absorbing environmental light in groove, thus effectively can reduce the impact of surround lighting on imaging picture, make projection screen by the interference of surround lighting, make that imaging picture is more clear, contrast is higher, brightness is higher.The utility model substantially improves the imaging picture of existing projection screen, can promote user's viewing experience, and manufacture craft is simple, and it has convenient and practical, feature easy to implement, should widely popularize.
Description
[technical field]
The utility model relates to projection screen, particularly a kind ofly reduces the interference of surround lighting to projection screen, thus makes projection screen imaging can be used for the projection screen of strong light environment more clearly.
[background technology]
The application of projection screen in life very extensive, it is mainly used in the occasions such as large conference room, command and control center, training education structure, meeting room, exhibition room, exhibition center, airport, show window; But in reality, projection screen is under various light environment, and especially in bright ambient light under environment, its surface, by projection of high light, is easy to cause that imaging picture is unintelligible, uneven, dazzle, white seriously vaporific.As everyone knows, if projection screen imaging picture in vain vaporific (picture turns white) serious, greatly can reduce contrast and the brightness of picture, thus it is unclear to be easy to cause user to watch, and then loses itself displaying, demonstration or advertising results.Generally speaking, surround lighting can't effectively be solved in prior art on the interference of imaging picture and impact.And on the market, the projection screen that surround lighting disturbs imaging picture effectively can be resisted few.Therefore, solve surround lighting to the impact of imaging picture, design and a kind ofly novel effectively can resist surround lighting has become technical development trend place to the projection screen of the interference of imaging picture.
[utility model content]
The utility model is intended to solve the problem, and provide one effectively can resist surround lighting to projection imaging picture to disturb, thus make that imaging picture is more clear, contrast is higher, brightness is higher, and manufacture craft simply can be used for the projection screen of strong light environment.
For achieving the above object, the utility model provides a kind of projection screen that can be used for strong light environment, it is characterized in that, this projection screen comprises the base material of projection imaging, the side spaced surface of described base material be provided with several transverse directions and the groove be parallel to each other, in described groove, be filled with the light absorbent to reduce surround lighting, imaging disturbed for absorbing light.
Described base material can be made up of transparent materials such as plastics, rubber, silica gel, and a side surface relative with being provided with groove of this base material can be light face, also can be matte surface, and it obtains by conventional machining mode.
Described light absorbent is black ink, black paint, black colloid or black powder.
Described groove is by carrying out on the surface in the side of described base material carving or roll-in and being formed.
Described light absorbent is filled in described groove by extruding or blade coating.
The surface of described light absorbent is concordant with the surface of described base material.
Described base material is translucent, is compounded with projection imaging layer on the surface in the reeded side of establishing of described base material, and the size of described projection imaging layer and the size of described base material match.
Described projection imaging layer is pasted on the surface of described base material by back projection imaging film and is formed.
Described projection imaging layer is sprayed by projection imaging paint or roller coat is formed in the surface of described base material.
Effective contribution of the present utility model is, it efficiently solves the problems referred to above.The utility model forms the groove at the interval that is parallel to each other on plastic basis material by the mode such as roll-in or engraving, and block and absorbing environmental light by filling the light absorbents such as black ink, black paint, black colloid or black powder in groove, thus effectively can reduce the impact of surround lighting on imaging picture, make projection screen by the interference of surround lighting, make that imaging picture is more clear, contrast is higher, brightness is higher.Projection screen of the present utility model both can be used in the environment without high light, and also can be used for has in the environment of high light.The utility model substantially improves the imaging picture of existing projection screen, can promote user's viewing experience, and manufacture craft is simple, and it has convenient and practical, feature easy to implement, should widely popularize.
[accompanying drawing explanation]
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is floor map of the present utility model.
Fig. 3 is the using state schematic diagram of the utility model embodiment 1.
Fig. 4 is the using state schematic diagram of the utility model embodiment 2.
[embodiment]
The following example is to further explanation of the present utility model and supplements, and does not constitute any limitation the utility model.
For the interference that opposing surround lighting causes imaging picture, solve image blurring, distortion, brightness decline, the white vaporific problem such as seriously, the utility model proposes a kind of novel projection screen that can be used for strong light environment, it utilizes laterally spaced groove 2 and the light absorbent 3 be filled in groove 2 blocks and absorbing environmental light, thus improves the imaging picture of existing projection screen.The projection screen that can be used for strong light environment of the present utility model both can be used for orthogonal projection and had used, and can be used for again back projection and used, be described below with different embodiment.
Embodiment 1
Present embodiment illustrates structure when it uses as orthogonal projection and principle.
As shown in FIG. 1 to 3, the projection screen that can be used for strong light environment of the present embodiment comprises base material 1, the groove 2 be located on base material 1, is filled in light absorbent 3 in groove 2 and projection imaging layer 4.
Described base material 1 is translucent state, and it can be made of a variety of materials, and as the transparent materials such as rubber, plastics, silica gel are made, then makes a side surface of base material 1 be matte surface by common process and forms translucent.In the present embodiment, it is plastic film material or plastic plate.
As shown in Figure 1, the groove 2 of several parallel interval is provided with at a side surface of described base material 1.Described groove 2 is one-body molded with described base material 1.During enforcement, on the surface of plastic film material or plastic plate, form described groove 2 by engraving or the technology such as roll-in.Such as, during normal projection, described base material 1 vertically arranges, then described groove 2 is in a side surface of described base material 1 in horizontal horizontal recess.The cross sectional shape of described groove 2 is square, trapezoidal, triangle or other shapes.In the present embodiment, the cross sectional shape of described groove 2 is trapezoidal, and its inwall tilts in obtuse angle with a side surface of described base material 1 respectively.In the present embodiment, be that equidistantly between it, the distance at interval can be determined according to the quality of the required imaging picture reached between described groove 2 and groove 2.In the present embodiment, between described groove 2 and adjacent grooves 2, the distance at interval is less than 0.5mm, preferred 0.2mm.For absorbing environmental light, in described groove 2, be filled with light absorbent 3.In the present embodiment, be absorbing environmental light better, reduce surround lighting to the interference of imaging, in described groove 2, be filled with black ink or black paint.In other embodiments, also can fill other dark colors can light absorbent 3, as light absorbents such as black colloid or black powder.After described light absorbent 3 is filled, its outer surface is mutually concordant with the surface of described base material 1.It should be noted that, the thickness of described groove 2, width and between interval all very trickle, the naked eyes of people cannot identification, and for ease of showing the concrete structure of described groove 2 in the figure of Fig. 1 ~ 4, the ratio of this groove 2 is amplified, in reality, the ratio of itself and described base material 1 is not general as shown in drawings.Therefore, Fig. 1 ~ Fig. 4 does not represent and of the present utility modelly can be used for the general ratio of the projection screen of strong light environment or the structure of correct proportions, and it is only for showing the structure composition that can be used for the projection screen of strong light environment of the present utility model.In addition, due to described groove 2 and light absorbent 3 structure trickle, living human eye cannot discover, therefore, although this light absorbent 3 is black ink or black paint, but it still can not affect visual experience, it both can not form black line together before vision, user also can not be allowed to perceive on projection screen and there is black line together.
One deck projection imaging layer 4 is compounded with outside the side surface being provided with groove 2 of described base material 1.In the present embodiment, described projection imaging layer 4 is projection imaging paint, and it is formed at the surface of described base material 1 by techniques such as spraying, roller coat.In other embodiments, described projection imaging layer 4 can be projection imaging film, and it is pasted on the surface of described base material 1 by adhesive.
By this, the projection screen that can be used for strong light environment of the present embodiment is just defined.The utility model in use, as shown in Figure 3, described projector equipment 5, as projector is positioned over the front that can be used for the projection screen of strong light environment of the present utility model, namely relative with being provided with projection imaging layer 4 side, the highest coboundary being no more than projection screen in position of projector equipment 5.Wherein, the A in Fig. 3 is to representing visual angle central horizontal line view direction, and B is to representing surround lighting incident direction.Because the light source of surround lighting is generally positioned at more than the visual angle central horizontal line in projection screen dead ahead, as sunshine, daylight lamp, therefore, when surround lighting irradiates from the oblique upper of projection screen, it can be blocked by spaced light absorbent 3, and sponge, thus surround lighting is irradiated less than on projection imaging layer 4, or few partial illumination is on projection imaging layer 4, thus the surround lighting being irradiated to projection imaging layer 4 surface can greatly be reduced, what surround lighting cannot or seldom be measured mixes (the mixing of this visual experience caused for light superposes with the throw light of projector equipment 5, light itself can not mix), and then the visual impression of throw light cannot be slackened, therefore, just it is more clear to be formed on projection imaging layer 4, contrast is higher, projected picture (this " projected picture " same alleged herein " imaging picture " that brightness is brighter, its picture all referring to projector equipment 5 throw light and formed).When people normally watch projected picture, it is generally watched with the visual angle of slightly looking up or parallel vision.Thus, after the light of projected picture enters pupil, just can be formed at human eye the visual experience that picture picture is more clear, contrast is higher, brightness is brighter, and then present a very clear very perfectly picture to user.It should be noted that, shut out the light and light-absorbing effect although light absorbent 3 has, it can not cause the throw light from projector equipment 5 and significantly absorb abated effect.This is because projector equipment 5 is not usually higher than the most high rim of projection screen, the angle of its light projected and light absorbent 3 makes to only have the light of few part to be blocked and to absorb, and the front side surface that most light still can arrive base material 1 carries out imaging.And human eye can not distinguish subtle difference like this, therefore, few some light is blocked can not affect to some extent on final the experienced visual pattern of user.User institute is sensitive is still even and the clear picture of continuous print, and compare and existing projection screen, user only can feel that projection screen imaging picture of the present utility model is more clear, contrast is higher, brightness is higher, and its image quality is better.And, during use, also adjust by the Distance geometry position between adjustment projector equipment 5 and projection screen, make the angle between throw light and light absorbent 3 meet best projection effect.
Embodiment 2
Present embodiment illustrates structure when it uses as back projection and principle.
The structure of the present embodiment is substantially with embodiment 1, and difference is, as shown in Figure 4, described projection imaging layer 4 is back projection imaging film, and it is by adhesive, as UV is gluing be affixed on as described in the side surface being provided with groove 2 of base material 1.As shown in Figure 4, its in use, projector equipment 5 is positioned over the rear of environment resistant projection screen, is namely provided with the side of back projection imaging film.When surround lighting irradiates from the oblique upper before projection screen, it is blocked by spaced light absorbent 3, and sponge, thus make surround lighting irradiation less than the surface of back projection imaging film, or few partial illumination is to the surface of back projection imaging film, greatly reduces the surround lighting be irradiated on described back projection imaging film.When projector equipment 5 from projection screen rear projects images light image when the surperficial imaging of described base material 1, block due to light absorbent 3 and absorb most surround lighting, surround lighting originally just cannot mix with the throw light of projector equipment 5, and then the visual impression of throw light cannot be weakened, therefore can form more clear, that contrast is higher, brightness is brighter projected picture.
The utility model by forming laterally spaced groove 2 on base material 1, and filling black ink or black paint carry out extinction in groove 2, thus efficiently solve the interference that surround lighting causes projected picture, solve that projected picture is fuzzy, the problem such as distortion, picture turn white, substantially increase the sharpness of projected picture, contrast and brightness, improve image quality.
Although disclosed the utility model by above embodiment, but scope of the present utility model is not limited thereto, under the condition not departing from the utility model design, above each component can be replaced with the similar or equivalent element that art personnel understand.
Claims (9)
1. one kind can be used for the projection screen of strong light environment, it is characterized in that, this projection screen comprises the base material (1) of projection imaging, be provided with several grooves be parallel to each other (2) at the side spaced surface of described base material (1), in described groove (2), be filled with the light absorbent (3) to reduce surround lighting, imaging disturbed for absorbing light.
2. can be used for the projection screen of strong light environment as claimed in claim 1, it is characterized in that, described base material (1) is made up of transparent material, and a side surface relative with being provided with groove of described base material (1) is light face or matte surface.
3. can be used for the projection screen of strong light environment as claimed in claim 1, it is characterized in that, described light absorbent (3) is black ink, black paint, black colloid or black powder.
4. can be used for the projection screen of strong light environment as claimed in claim 1, it is characterized in that, described groove (2) is by carrying out on the surface in the side of described base material (1) carving or roll-in and being formed.
5. can be used for the projection screen of strong light environment as claimed in claim 1, it is characterized in that, described light absorbent (3) is filled in described groove (2) by extruding or blade coating.
6. can be used for the projection screen of strong light environment as claimed in claim 1, it is characterized in that, the surface of described light absorbent (3) is concordant with the surface of described base material (1).
7. can be used for the projection screen of strong light environment as claimed in claim 1, it is characterized in that, described base material (1) is translucent state, be compounded with projection imaging layer (4) on the surface in the side being provided with groove (2) of described base material (1), the size of described projection imaging layer (4) and the size of described base material (1) match.
8. can be used for the projection screen of strong light environment as claimed in claim 7, it is characterized in that, described projection imaging layer (4) is pasted on the surface of described base material (1) by back projection imaging film and is formed.
9. can be used for the projection screen of strong light environment as claimed in claim 7, it is characterized in that, described projection imaging layer (4) is sprayed by projection imaging paint or roller coat is formed in the surface of described base material (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520316382.9U CN204595421U (en) | 2015-05-15 | 2015-05-15 | Can be used for the projection screen of strong light environment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520316382.9U CN204595421U (en) | 2015-05-15 | 2015-05-15 | Can be used for the projection screen of strong light environment |
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| Publication Number | Publication Date |
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| CN204595421U true CN204595421U (en) | 2015-08-26 |
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| CN201520316382.9U Active CN204595421U (en) | 2015-05-15 | 2015-05-15 | Can be used for the projection screen of strong light environment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782199A (en) * | 2016-08-30 | 2018-03-09 | 西安华科光电有限公司 | A kind of interior red point for eliminating veiling glare takes aim at tool |
| CN110007552A (en) * | 2018-12-14 | 2019-07-12 | 江和原 | Transparent membrane and optical projection system for projection |
| WO2020233466A1 (en) * | 2019-05-17 | 2020-11-26 | 亚科维亚(福建)科技有限公司 | Rear-projection coating and rear-projection screen |
-
2015
- 2015-05-15 CN CN201520316382.9U patent/CN204595421U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782199A (en) * | 2016-08-30 | 2018-03-09 | 西安华科光电有限公司 | A kind of interior red point for eliminating veiling glare takes aim at tool |
| CN107782199B (en) * | 2016-08-30 | 2023-09-22 | 西安华科光电有限公司 | Inner red spot sighting device capable of eliminating stray light |
| CN110007552A (en) * | 2018-12-14 | 2019-07-12 | 江和原 | Transparent membrane and optical projection system for projection |
| CN110007552B (en) * | 2018-12-14 | 2021-07-20 | 北京宝江科技有限公司 | Transparent film for projection and projection system |
| WO2020233466A1 (en) * | 2019-05-17 | 2020-11-26 | 亚科维亚(福建)科技有限公司 | Rear-projection coating and rear-projection screen |
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