CN2505875Y

CN2505875Y - Louver type projection screen

Info

Publication number: CN2505875Y
Application number: CN 01268452
Authority: CN
Inventors: 梁坚平
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-15
Filing date: 2001-11-15
Publication date: 2002-08-14
Anticipated expiration: 2011-11-15

Abstract

The utility model relates to a louver type projection screen which comprises a support 1, an angle locator 2 and a high brightness reflecting screen strip 3, wherein, a proclined angle of 20 degrees to 175 degrees is formed between the plane of the high brightness reflecting screen strip 3 and that of the support 1, and the structure of a louver curtain is formed. During the process of projection, the utility model can screen out sufficient light disturbance of other lights on a projected image just like a louver curtain and make the projected image clearer and brighter. The utility model is especially suitable for background projection and can overcome the disadvantage of sufficient light of the screen. The popularization of the utility model further meets the demands of the wedding photography industry and the advertising photography industry for replacing the background with a projected image.

Description

Louvered projection screen

One, technical field:

The utility model belongs to a kind of projection camera, is specifically related to a kind of louvered projection screen.

Two, background technology:

The background process cinematography is a kind of new technology that wedding gauze kerchief advertisement, photograph industry are used, its principle is to utilize lantern projection's background to come instead of manual drawing setting, as long as various honourable lantern slides are projected in the screen of high brightness orienting reflex by background combining machine, the personage just may stand in the screen front and photographs the photomontage of a people in scape, thereby because image content is true to nature and can the ever-changing welcome that is subjected to the consumer deeply.In shooting process, in order to guarantee the clear gorgeous of projected picture, personage's illuminating ray just cannot shine in the screen in order to avoid water down projected picture, therefore how can make illuminating ray only shine the personage and shine less than on the projection screen on one's body, just become to influence the key of background process cinematography effect.The employed projection screen of background combining machine of domestic and international various models has all adopted the plane orienting reflex screen of vertical hanging at present.Facts have proved that this projection screen in use exists following deficiency: one, because vertical plane causes the light reflection easily, so to houselights to block requirement strict especially, careless slightly, be not the sharpness that optical phenomenon has disturbed projected picture of filling that occurs in the screen, the illuminating effect that is exactly personage's face has produced ugly nose shadow clamping plate light; Two, the personage can not be too near apart from projection screen, otherwise the easier light that fills of screen; If add the distance of VIP and screen, can cause the imbalance of personage and background perspective ratio again, make picture produce feeling of unreality.Above-mentioned deficiency has greatly influenced promoteing the wider application of background process cinematography technology.

Three, summary of the invention:

Technical problem to be solved in the utility model is exactly to improve at the weak point that existing projection screen exists, designed a kind of novel structure, that result of use is more desirable, it can block other light as louvre curtain the light that fills that projected image causes has been disturbed when projection, can make the clear more bright louvered projection screen of projected image.

The purpose of this utility model can realize by following measure: a kind of support 1 that includes, angle locater 2, the louvered projection screen of high brightness Reflecting curtain bar 3, support 1 both sides are provided with the fixedly angle locater 2 of high brightness Reflecting curtain bar 3, the two ends of high brightness Reflecting curtain bar 3 are fixed on the angle locater 2, the plane of high brightness Reflecting curtain bar 3 and the plane of support 1 form 20 °～175 ° the angle that leans forward, the width of high brightness Reflecting curtain bar 3 is 3～1100mm, length is 1～10 meter, the arrangement total number of high brightness Reflecting curtain bar 3 is 1～3000, and distance is 3～1000mm between the high brightness Reflecting curtain bar 3.High brightness Reflecting curtain bar 3 can horizontal cross on support 1 be arranged, also vertical vertical array.

The utility model includes support, angle locater, three parts of high brightness Reflecting curtain bar, compare with existing projection screen, the view picture plane interference projection screen not against sunshine of original vertical hanging is changed into: by some the novel louver projection screens of high brightness Reflecting curtain bar strip that form, that similar louvre curtain is the same interference against sunshine.The feature of this screen is: one, the vertical plane of some high brightness Reflecting curtain bars and support has certain angle of inclination can not influence the brightness of image of screen projection; Two, the barrier action of blocking personage's illuminating ray can have been played as sun-proof canopy in the dip plane of some high brightness Reflecting curtain bars, make personage's illuminating ray not disturb projected image in the screen, overcome the long-standing disadvantage of original plane vertical projection screen effectively, made the effect ideal more true to nature of background process cinematography.The utility model utilizes above-mentioned technical characterictic, solved the not technical barrier of interference against sunshine of plane vertical projection screen, successfully develop a kind of novel projection screen that can prevent that light from disturbing, not only reduced the difficulty of personage's illumination light, and improved the quality of background photomontage, this new technology of background process cinematography can further be applied.This projection screen adopts spliced installation, and not only manufacturing cost is low, and transportation and clean and maintenance are all very convenient.

Four, description of drawings:

Fig. 1 is that master of the present utility model looks synoptic diagram;

Fig. 2 is a schematic side view of the present utility model.

Five, embodiment:

On one 2 * 3 meters vertical rectangular support frame 1, transversely arranged up and down 100 3 meters long high brightness Reflecting curtain bar 3, its width is 20mm.Angle locater 2 is installed on the dual-side of support 1, the two ends of high brightness Reflecting curtain bar 3 are fixed on the angle locater 2, the effect of angle locater 2 is to make the vertical plane of the plane of high brightness Reflecting curtain bar 3 and support 1 form 135 ° slanted angle, and the spacing distance of two high brightness Reflecting curtain bars is 10mm up and down.

According to this louvered projection screen of need of work, except horizontal cross is arranged for the front projection use, also vertical vertical array can be used for side projection.

Claims

1, a kind of support (1) that includes, angle locater (2), the louvered projection screen of high brightness Reflecting curtain bar (3), it is characterized in that: support (1) both sides are provided with the fixedly angle locater (2) of high brightness Reflecting curtain bar (3), the two ends of high brightness Reflecting curtain bar (3) are fixed on the angle locater (2), the plane of the plane of high brightness Reflecting curtain bar (3) and support (1) forms 20 °～175 ° the angle that leans forward, the width of high brightness Reflecting curtain bar (3) is 3～1100mm, length is 1～10 meter, the arrangement total number of high brightness Reflecting curtain bar (3) is 1～3000, and distance is 3～1000mm between the high brightness Reflecting curtain bar (3).

2, louvered projection screen according to claim 1 is characterized in that: high brightness Reflecting curtain bar (3) can horizontal cross on support (1) be arranged, also vertical vertical array.