CN202548521U

CN202548521U - Projection curtain

Info

Publication number: CN202548521U
Application number: CN 201220056347
Authority: CN
Inventors: 张霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-02-21
Filing date: 2012-02-21
Publication date: 2012-11-21
Anticipated expiration: 2022-02-21

Abstract

The utility model relates to a projection curtain, which comprises a housing, a rotating shaft located inside the housing and a curtain wound on the rotating shaft, wherein the housing is divided into three disconnected sections located on the same horizontal line; through holes are uniformly arranged on the curtain, and the diameters of the through holes are between 0.3mm and 2.5mm. By controlling the size of the holes and the space between the holes on the projection curtain, sound can pass through the curtain without being blocked so that a projection curtain with good sound transmission effect and perfect combination of image and sound is provided and an excellent audio-video environment can be created. In addition, the product also has the properties such as excellent elasticity, portability, extendability, folding resistance, washability, difficulty in infection of dust, durability and the like, and can be widely used in the fields emphasizing the environmental effect of the cinema such as public cinemas, household theaters, business clubs, five-star hotels and the like.

Description

A kind of projection screen

Technical field

The utility model relates to a kind of projection screen.

Background technology

Projection screen is one of product that the most often uses in projector's peripheral equipment, and image is carried out enlarged and displayed, can be used as the usefulness of demonstration, propaganda, teaching.As the annex of projection arrangement, projection screen is furnished with multiple drawing materials, multiple set-up mode.Abundance the space in, people can install the large-screen that need not pack up, and because reflective effect, screen is set to arc more, the people who helps each position sees the image on the screen clearly.Yet existing stereo set can only be installed in the place ahead of screen, as is placed on the rear of screen or is bumped in the wall and will influence tonequality and drop shadow effect.Present domestic entrant sound screen research is considerably less, and some to be known as be the just simple punching of product of entrant sound screen, do not consider the size in hole and the spacing control in hole, and the performance of screen own also fails to obtain good assurance.

Summary of the invention

The technical matters that the utility model will solve provides a kind of projection screen with good projection effect.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: comprise housing, be positioned at the rotating shaft of housing and be wrapped in the curtain in the rotating shaft that said housing is divided into and is in unconnected three joints on the same horizontal line; Evenly have through hole on the said curtain, said through-hole diameter is between 0.3mm～2.5mm.

Further, there is nylon to paste on the edge that three curtains intersect in twos.

Further, to save angle identical and all slope inwardly for said housing two joints and middle that are positioned at both sides.

Further, the rotating shaft of the joint of three in the said housing connects through connecting rod.

Further, said curtain is composited by reflectance coating and photomask.

The projection screen of the utility model; Through size and pitch of holes control to perforate on the curtain; Make sound pass screen and can not be intercepted, so provide a kind of entrant sound effect good, can image and the perfect projection screen that merges of sound can be built outstanding audio-visual environment.This product has excellent elasticity, portability, extensibility, folding resistance, clanability concurrently, is difficult for being stained with ash property and performance such as durable in use in addition, can be widely used in public and home theater, the commercial affairs of paying attention to the movie theatre environmental effect and understand in one's power places such as five-star hotel.

Description of drawings

Fig. 1 is the front view of the utility model projection screen;

Fig. 2 is the vertical view of the utility model projection screen.

Embodiment

In the present embodiment, see figures.1.and.2, said projection screen comprises housing 1, is positioned at the rotating shaft 2 of housing 1 and is wrapped in the curtain 3 in the rotating shaft 2, and said housing 1 is divided into and is in unconnected three joints on the same horizontal line; Evenly have through hole 30 on the said curtain 3, said through-hole diameter is between 0.3mm～2.5mm.Through to the size of perforate on the curtain and pitch of holes control, make sound pass screen and can not be intercepted, and then provide a kind of entrant sound effect good, can image and the perfect projection screen that merges of sound can be built outstanding audio-visual environment.

Wherein, there is nylon 4 to paste on the edge that three curtains 3 intersect in twos.It is identical and all slope inwardly that two joints and middle that said housing 1 is positioned at both sides save angle.Three joint rotating shafts 2 in the said housing 1 connect through connecting rod 5.Said curtain 3 is composited by reflectance coating and photomask (not shown).

Below the utility model is done a detailed description; The above is merely the preferred embodiment of the utility model, when not limiting the utility model practical range; Be allly to do impartial change and modify, all should still belong in the utility model covering scope according to the application's scope.

Claims

1. a projection screen comprises housing, is positioned at the rotating shaft of housing and is wrapped in the curtain in the rotating shaft, and said housing is divided into and is in unconnected three joints on the same horizontal line; It is characterized in that: evenly have through hole on the said curtain, said through-hole diameter is between 0.3mm～2.5mm.

2. projection screen according to claim 1 is characterized in that: have nylon to paste on the edge that three curtains intersect in twos.

3. projection screen according to claim 1 is characterized in that: it is identical and all slope inwardly that two joints and middle that said housing is positioned at both sides save angle.

4. projection screen according to claim 1 is characterized in that: three joint rotating shafts in the said housing connect through connecting rod.

5. projection screen according to claim 1 is characterized in that: said curtain is composited by reflectance coating and photomask.