CN103365060B - A kind of window for film projector - Google Patents
A kind of window for film projector Download PDFInfo
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- CN103365060B CN103365060B CN201310299017.7A CN201310299017A CN103365060B CN 103365060 B CN103365060 B CN 103365060B CN 201310299017 A CN201310299017 A CN 201310299017A CN 103365060 B CN103365060 B CN 103365060B
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Abstract
The present invention relates to a kind of window for film projector, comprise body of wall and projection port; Comprise projection utility appliance connecting box and bellows type expansion cover, this bellows type expansion cover sliding fit is connected on projection utility appliance connecting box end face; Described projection utility appliance connecting box front/rear end correspondence offers optical transmission window, and on the optical transmission window of described projection utility appliance connecting box box body front surface, edge, lower edge coupling are provided with pulling slide rail; Described bellows type expansion cover comprises flexible cover body and is located at the link at flexible cover body two ends, the size of flexible cover body one end and optical transmission window matches, the link of this end is connected with the pulling slide rail on edge, lower edge on optical transmission window respectively, and link and the projector camera lens of the flexible cover body other end are socketed; The present invention makes projection beam reduce light leak in communication process, it also avoid work light in display process in projection booth or natural light disturbs the light of projection beam; Effectively can also isolate noise that the projector in projection booth sends to the impact of movie theater project effect.
Description
Technical field
The present invention relates to a kind of cinematographic equipment, especially relate to a kind of window for film projector.
Background technology
Shown in Figure 1, conventional projection window is widely used in movie theatre, plays the effect that sound insulation, isolation dust and fire prevention are isolated; The basic comprising assembly of projection port is: high-quality float glass 1 ' and sealing strip 2 ', float glass 1 ' is embedded in the projection window between projection booth and movie theater on body of wall at a certain angle, will serve as a contrast between glass surrounding and body of wall and paste sealing strip 2 ' and acoustic absorbant, thus the noise produced when as far as possible reducing the work of projection booth equipment is to the destruction of project effect; Execution glass transmission better performances, can pass through projection beam, but the foreign matter such as easy adhering dust on float glass, viewing effect can be affected.
Conventional projection window also has three outstanding greatly drawbacks: 1, projection beam light leak in communication process; 2, the light interference such as natural light of penetrating of the work light of projection booth or the projection booth luminance decay that projector can be caused to send; 3, the noise of the cinematographic equipment of projection booth can import movie theater into, affects viewing effect.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of window for film projector, and this device makes projection beam reduce light leak in communication process, it also avoid work light in display process in projection booth or natural light disturbs the light of projection beam; Effectively can also isolate noise that the projector in projection booth sends to the impact of movie theater project effect, the maintenance of window equipment is convenient and swift simultaneously.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of window for film projector, comprise projection utility appliance connecting box and bellows type expansion cover, this bellows type expansion cover sliding fit is connected on projection utility appliance connecting box end face, bellows-type structure can adjust the distance of stretch out and draw back of telescopic cover in projector lens axis direction according to screen distance (projector camera lens is to the distance of screen), and when projector camera lens, connect cover, after the projection port shown on utility appliance connecting box and body of wall is interconnected successively, when the power supply opening projector is to movie theater projection source, as found, light source position has deviation, because the connection material of bellows type expansion cover between two between ring skeleton is cloth or papery, the now still horizontal direction of adjustable projector or the angle of vertical direction, can correctly be incident upon in the screen of movie theater to make the projection image of projector, described projection utility appliance connecting box front/rear end correspondence offers optical transmission window, so that the projection beam of projector is appeared thus, the optical transmission window of described projection utility appliance connecting box box body front surface is provided with pulling slide rail along coupling up and down, so that bellows type expansion cover is slidably connected by pulling slide rail and projection utility appliance connecting box, the sliding fit of bellows type expansion cover and projection utility appliance connecting box is convenient to the maintenance of projector camera lens and the conversion be convenient to other projection utility appliance in printing opacity connecting box and maintenance, described bellows type expansion cover comprises flexible cover body and is located at the link at flexible cover body two ends, the size of flexible cover body one end and optical transmission window matches, the pulling slide rail on the link of this end edge upper and lower with optical transmission window is respectively connected, and link and the projector camera lens of the flexible cover body other end are socketed.
Described flexible cover body is the truncated rectangular pyramids structure of hollow, the bottom surface of flexible cover body is provided with opening, this opening mates with optical transmission window size, and opening is provided with link, this link is connected with pulling slide rail, the end face of flexible cover body is provided with link, described link is annular clamp, the diameter of this annular clamp is greater than the diameter of projector camera lens, and the inner ring of annular clamp is installed with fur, ensure the good contact of flexible cover body and camera lens, can play stable, cushion effect with len, avoid camera lens to encounter flexible cover body inwall; Also can prevent the dust of projection booth and sound from entering in flexible cover body simultaneously, and then import the viewing Room into, affect viewing effect; Flexible cover body is connected with projection utility appliance connecting box and coordinates, and forms the space that a relative projection booth seals, and is used for isolated projection booth and movie theater, avoids projector light leak leakage sound in work process.
It is described that to be located at the link that flexible cover body one end is connected with pulling slide rail be screw or rivet.
The side that bellows type expansion cover is corresponding with projection utility appliance connecting box is provided with the Fastening fixing device of coupling mutually, to avoid in the process of showing a film, bellows type expansion cover owing to being subject to gravity or being subject to other external force to a Slideslip, and then blocks the projects images of projector, affects project effect.
The madial wall of described projection utility appliance connecting box horizontal direction is provided with slide rail, slide rail slidably connects 3D polarizer device, because the film shown now is generally 2D film or 3D film, if adopt special 3D film projector projection, greatly can increase the equipment investment cost of movie theatre, and passive type 3D equipment (installing 3D polarizer device before projector camera lens additional) is adopted when showing 3D film, the cost buying 3D projection equipment can be saved.
The madial wall of the 3D polarizer device offside in described projection utility appliance connecting box is provided with the camera lens projected images calibrating installation be slidably connected by slide rail, this camera lens projected images calibrating installation can coordinate with projector camera lens, clearly by the image projection of camera lens projected images calibrating installation in the screen of movie theater, projectionist is judged intuitively, and whether the position of projected images is correctly incident upon in screen, so that the projection angle of rapid adjustment projector.
Described image calibration device comprises connecting link and is located at the cross foresight of connecting link end.
Principle of work
1, the debugging of projector camera lens
First, projection utility appliance connecting box is fixed on projection booth to be provided with on the body of wall of projection port, 3D polarizer device and image calibration device, just to projection port, are connected to diapire and inner roof wall place in projection utility appliance connecting box respectively by slide rail by the optical transmission window of projection utility appliance connecting box, the image calibration device be slidably tied on the left of inner roof wall is slided into optical transmission window center, right side, the lens location of adjustment projector, it is made to aim at optical transmission window center, open the power supply of projector, the light beam of projector is made to project in the screen of movie theater by the projection port on optical transmission window and body of wall, now, owing to there being image calibration device between projector and screen, screen can project the shade of publishing picture as calibrating installation, whether projectionist can the position judgment projected images residing in screen according to shade can complete screen again manifest, projectionist can according to the projection angle of this image fine setting projector in screen, the debugging of projector camera lens is complete, is slided into by image calibration device on the left of projection utility appliance connecting box inner roof wall, as this will show 3D film, then the 3D polarizer device be slidably tied on the left of interior diapire is slided into optical transmission window center, right side.
2, the isolated projector in local and movie theater
The homonymy one section of upper and lower corresponding two the two sections of drawing and pulling type linear slide rails arranged of projection utility appliance connecting box front end face is pulled out to the left, again the homonymy one section of bellows type expansion cover one end by the link of this end and these two two sections of drawing and pulling type linear slide rails is spirally connected, then, bellows type expansion cover after being connected and fixed is slided to the right, bellows type expansion cover position and optical transmission window are fitted like a glove, now, the buckling device being located at bellows type expansion cover and projection utility appliance connecting box homonymy is fastened, again the bellows type expansion cover other end is stretched towards projector direction, the annular snap sub-set that bellows type expansion cover other end end face is arranged is made to be connected to the camera lens outer wall place of projector, now, observe the image in screen, if there is deviation the complete position of the debugging of the position of image and projector camera lens, due to the design feature of bellows type expansion cover, make the displacement that the coupling part between these cover body both ends of the surface can realize up and down, position consistency when fine setting projector lens location makes the debugging of itself and projector camera lens complete, thus complete a kind of installation of window for film projector.
The present invention makes projection beam reduce light leak in communication process, it also avoid work light in display process in projection booth or natural light disturbs the light of projection beam; Effectively can also isolate noise that the projector in projection booth sends to the impact of movie theater project effect, the maintenance of window equipment is convenient and swift simultaneously.
Accompanying drawing explanation
Fig. 1 is prior art using state structural representation;
Fig. 2 is using state structural representation of the present invention;
Fig. 3 is side-looking using state structural representation of the present invention;
Fig. 4 is that the present invention faces mounting structure schematic diagram;
Fig. 5 is that the present invention faces using state structural representation.
Embodiment
Embodiment 1
Shown in Fig. 2 ~ Fig. 5, a kind of window for film projector, comprises projection utility appliance connecting box 1 and bellows type expansion cover 2, and this bellows type expansion cover 2 sliding fit is connected on projection utility appliance connecting box 1 end face; Described projection utility appliance connecting box 1 front/rear end correspondence offers optical transmission window 11, and on the optical transmission window of described projection utility appliance connecting box 1 box body front surface, edge, lower edge coupling are provided with pulling slide rail 12; Described bellows type expansion cover 2 comprises flexible cover body 21 and is located at the link 22 at flexible cover body 21 two ends, the size of flexible cover body 21 one end and optical transmission window 11 matches, the link 22 of this end is connected with the pulling slide rail 12 on edge, lower edge on optical transmission window 11 respectively, and the link 22 of flexible cover body 21 other end is socketed with projector camera lens.
Described flexible cover body 21 is truncated rectangular pyramids structures of hollow, the bottom surface of flexible cover body 21 is provided with opening, this opening mates with optical transmission window 11 size, and opening is provided with link 22, this link 22 is connected with pulling slide rail 12, and the end face of flexible cover body 21 is provided with link 22, and described link 22 is annular clamps, the diameter of this annular clamp is greater than the diameter of projector camera lens, and the inner ring of annular clamp is installed with fur.
It is described that to be located at the link 22 that flexible cover body 21 one end is connected with pulling slide rail 12 are screws.
The side of bellows type expansion cover 2 and projection utility appliance connecting box 1 correspondence is provided with the Fastening fixing device 3 of coupling mutually.
The madial wall of described projection utility appliance connecting box 1 horizontal direction is provided with slide rail 13, slide rail slidably connects 3D polarizer device 4.
The madial wall of 3D polarizer device 4 offside in described projection utility appliance connecting box 1 is provided with the camera lens projected images calibrating installation 5 be slidably connected by slide rail.
Described image calibration device 5 comprises connecting link 51 and is located at the cross foresight 52 of connecting link 51 end.The test of conventional projection glass transmission rate and transmittance test report of the present invention
Test duration: on May 10th, 2013
Testing location: Kunshan film city No. 8 Rooms, Beijing Ma Jiabao No. 6 U-shaped windows in the Room
Testing apparatus: projector and CS-100A color luminance meter are looked by section
Test purpose: the lifting effect of showing brightness after removing projection glass
(this diagram shape is as following table nine brightness data rulings to get nine palace test patterns by projector, do not comprise nine data form outer rim, each data correspond to the respective regions that ruling marks off), in movie theater 2/3 place, high 1 meter of, uses CS-100A color luminance meter to carry out brightness measurement.Measuring unit is FL (footlambert)
Below for using nine palace brightness datas of prior art:
Below for using nine palace brightness datas of the present invention:
Below for using the subregion difference of above-mentioned two kinds of nine palace brightness datas measured:
By above data, determine to use apparatus of the present invention can effectively increase projection brightness.
Comprehensive analysis: for DCI standard (digital cinema standards), when 2D plays, brightness requirement reaches 14FL ± 3FL, 3D plays brightness requirement temporarily without clear stipulaties, but industry generally believes it is should at 4.5FL ± 0.5FL, for above test, on average adding 1 FL has been an important breakthrough.
The word in description orientation adopted herein " on ", D score, "left", "right" etc. are all convenience in order to illustrate based on the orientation in accompanying drawing shown in drawing, in actual device, these orientation may be different due to the disposing way of device.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to technical scheme of the present invention the apparent change of extending out or variation be still in the row of protection scope of the present invention.
Claims (7)
1. a window for film projector; It is characterized in that: comprise projection utility appliance connecting box (1) and bellows type expansion cover (2), projection utility appliance connecting box (1) is fixed on and is provided with on the surface of wall of projection port, and this bellows type expansion cover (2) sliding fit is connected on projection utility appliance connecting box (1) end face; Described projection utility appliance connecting box (1) front/rear end correspondence offers optical transmission window (11), the optical transmission window (11) of projection utility appliance connecting box (1) is just to projection port, and on the optical transmission window of described projection utility appliance connecting box (1) box body front surface, edge, lower edge coupling are provided with pulling slide rail (12); Described bellows type expansion cover (2) comprises flexible cover body (21) and is located at the link (22) at flexible cover body (21) two ends, the size of flexible cover body (21) one end and optical transmission window (11) matches, the link (22) of this end is connected with the pulling slide rail (12) on edge, lower edge on optical transmission window (11) respectively, and the link (22) of flexible cover body (21) other end is socketed with projector camera lens.
2. a kind of window for film projector according to claim 1, it is characterized in that: described flexible cover body (21) is the truncated rectangular pyramids structure of hollow, the bottom surface of flexible cover body (21) is provided with opening, this opening mates with optical transmission window (11) size, and opening is provided with link (22), this link (22) is connected with pulling slide rail (12), the end face of flexible cover body (21) is provided with link (22), described link (22) is annular clamp, the diameter of this annular clamp is greater than the diameter of projector camera lens, and the inner ring of annular clamp is installed with fur.
3. a kind of window for film projector according to claim 2, is characterized in that: described in be located at the link (22) that flexible cover body (21) one end is connected with pulling slide rail (12) be screw or rivet.
4. a kind of window for film projector according to claim 3, is characterized in that: the side of bellows type expansion cover (2) and projection utility appliance connecting box (1) correspondence is provided with the Fastening fixing device (3) of coupling mutually.
5. a kind of window for film projector according to claim 1 and 2, is characterized in that: the madial wall of described projection utility appliance connecting box (1) horizontal direction is provided with slide rail (13), slide rail slidably connects 3D polarizer device (4).
6. a kind of window for film projector according to claim 5, is characterized in that: the madial wall of 3D polarizer device (4) offside in described projection utility appliance connecting box (1) is provided with the camera lens projected images calibrating installation (5) be slidably connected by slide rail.
7. a kind of window for film projector according to claim 6, is characterized in that: described image calibration device (5) comprises connecting link (51) and is located at the cross foresight (52) of connecting link (51) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310299017.7A CN103365060B (en) | 2013-07-17 | 2013-07-17 | A kind of window for film projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310299017.7A CN103365060B (en) | 2013-07-17 | 2013-07-17 | A kind of window for film projector |
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| Publication Number | Publication Date |
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| CN103365060A CN103365060A (en) | 2013-10-23 |
| CN103365060B true CN103365060B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310299017.7A Active CN103365060B (en) | 2013-07-17 | 2013-07-17 | A kind of window for film projector |
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| CN105818649A (en) * | 2014-08-10 | 2016-08-03 | 车莉 | Window for outdoor photographing and automobile comprising window |
| CN105774482A (en) * | 2014-08-10 | 2016-07-20 | 车莉 | Shooting window with lens convenient to adjust and automobile comprising window |
| CN105774483A (en) * | 2014-08-10 | 2016-07-20 | 车莉 | Shooting window convenient to fold and automobile comprising window |
| CN105644316A (en) * | 2014-08-10 | 2016-06-08 | 车莉 | Foldable window facilitating clear shooting and automobile comprising same |
| CN105644305A (en) * | 2014-08-10 | 2016-06-08 | 车莉 | Good-safety window for shooting outdoor scene and automobile comprising same |
| CN104139684B (en) * | 2014-08-10 | 2016-05-04 | 车莉 | A kind of window and comprise the automobile of this window |
| CN105644313A (en) * | 2014-08-10 | 2016-06-08 | 车莉 | Window facilitating clear outdoor scene shooting and automobile comprising same |
| CN105818648A (en) * | 2014-08-10 | 2016-08-03 | 车莉 | Impact-resistant injury-prevention window and automobile comprising window |
| CN105644312A (en) * | 2014-08-10 | 2016-06-08 | 车莉 | Window with lens convenient to adjust and resistant to impact and automobile comprising window |
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| JPH052214A (en) * | 1991-06-21 | 1993-01-08 | Fuji Photo Film Co Ltd | Slide and slide projector |
| CN1088314A (en) * | 1992-12-09 | 1994-06-22 | 丁定藩 | Domestic combined multi-functional optical system and modular construction thereof |
| EP0605232A1 (en) * | 1992-12-28 | 1994-07-06 | Sony Corporation | Image projecting apparatus |
| CN201491165U (en) * | 2009-09-16 | 2010-05-26 | 南阳首控光电有限公司 | Split large-curtain projecting TV set |
| CN202033576U (en) * | 2011-04-11 | 2011-11-09 | 广东威创视讯科技股份有限公司 | Switching mechanism and projection system compatible with 2D (Two-Dimensional) and 3D (Three-Dimensional) image play |
| CN103075091A (en) * | 2013-02-04 | 2013-05-01 | 保利影业投资有限公司 | Projection window structure for movie theatre |
| CN203350605U (en) * | 2013-07-17 | 2013-12-18 | 保利影业投资有限公司 | Movie projector window |
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2013
- 2013-07-17 CN CN201310299017.7A patent/CN103365060B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH052214A (en) * | 1991-06-21 | 1993-01-08 | Fuji Photo Film Co Ltd | Slide and slide projector |
| CN1088314A (en) * | 1992-12-09 | 1994-06-22 | 丁定藩 | Domestic combined multi-functional optical system and modular construction thereof |
| EP0605232A1 (en) * | 1992-12-28 | 1994-07-06 | Sony Corporation | Image projecting apparatus |
| CN201491165U (en) * | 2009-09-16 | 2010-05-26 | 南阳首控光电有限公司 | Split large-curtain projecting TV set |
| CN202033576U (en) * | 2011-04-11 | 2011-11-09 | 广东威创视讯科技股份有限公司 | Switching mechanism and projection system compatible with 2D (Two-Dimensional) and 3D (Three-Dimensional) image play |
| CN103075091A (en) * | 2013-02-04 | 2013-05-01 | 保利影业投资有限公司 | Projection window structure for movie theatre |
| CN203350605U (en) * | 2013-07-17 | 2013-12-18 | 保利影业投资有限公司 | Movie projector window |
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| CN103365060A (en) | 2013-10-23 |
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