CN201867579U - Projection device provided with reflecting mirror - Google Patents

Abstract

A projection device provided with a reflecting mirror projects focused rays onto a display surface through adopting the rotating reflecting mirror projection technology, and represents different character images through the instant display track of the rays. A rotating reflecting mirror is mounted on a base of a motor; an encoder is mounted on the motor to obtain precise position of the rotating shaft; and under the control of a control circuit, all the focus point light sources are turned on and off dynamically and projected to the display surface after being reflected by the rotating reflecting mirror, so as to achieve a dynamic image display.

Description

A kind of projection arrangement with catoptron

Technical field

The utility model relates to a kind of projection arrangement with catoptron, is a kind of electronic product, especially a kind ofly can form projection illumination by rotating mirror, can show the projection arrangement of dynamic image.

Background technology

At present, the published method of advertisement is varied, and present most advertisement is static, and also useful LED screen etc. is dynamically realized.For dynamic display ads generally in two ways: a kind of is the autoluminescence class, and as LED/LCD screen class, another kind is irradiation luminous class, splices as projection.Autonomous emitting led screen is effective, and cost is too high; And the shadow casting technique on the existing projector no matter be with liquid crystal board switch or micro mirror lift-off technology, all not too be fit to outdoor environment and use: general outdoor projected area is (as the body of wall projection) and require brightness very high greatly.

Summary of the invention

In order to overcome problems such as inconvenience is installed in this outdoor projection, cost is too high, brightness is not enough, it is a kind of dynamo-electric in conjunction with the catoptron rotating and projection device of realizing that the utility model provides, this device can easily be realized the projection of advertising image, can show dynamic image, and it is low and advantages such as splicing is convenient are installed to possess enough brightness, cost, and the scale of being easy to is applied.

The technical scheme that its technical matters that solves the utility model adopts is: by a kind of rotary reflection technology, with the light reflected illumination that focuses at display plane, moment demonstration track by light is represented different character images, utilize people's persistence of vision, human eye can be watched stable static graphics or animation.

Because the brightness requirement height so luminous pointolite requires that good heat sink is arranged, generally is made in and dispels the heat on the aluminium base, so pointolite is more thick and heavy, inconvenient self rotation, thereby come reflective projection by slim and graceful rotation minute surface.For man in a responsible position's billboard-like, owing to need irradiation evening itself, the present invention just throws by having increased controllable rotating mirror reflection spot light source, thereby has increased dynamic demonstration, thereby possesses better cost performance.

Realization principle of the present invention is: by on the pedestal of motor turning axle being installed, motor has scrambler record position of rotation, and polygonal polygon catoptron is arranged on the turning axle, and catoptron can be made by high reflecting material plated film or pad pasting.One side of polygon catoptron is placed with the pointolite plate that is equipped with through the pointolite that focuses on, when turning on light, pointolite is radiated on the polygon rotating mirror through lens focus, in the time of the rotation of polygon catoptron light is transmitted on the projection plane and forms image, this plane can be a billboard, also can be metope.Each pointolite all be subjected to programmed control by logic according to the present position light on and off of current rotating mirror.Each focused point light sources shows delegation's image, and just to have constituted N capable for the individual luminous focus point of the N of Pai Lieing in order.Each focused point light sources all is independent controlled pointolite, we see one of them pointolite earlier, when turning axle rotates, this pointolite by the polygon mirror reflects of rotating with turning axle to projection plane, this moment, control program was by obtaining the concrete position of rotation of turning axle from scrambler, according to wanting content displayed, indicate corresponding pointolite light on and off, and then present the projected spot of quick light on and off in the place of this pointolite of projection plane irradiation, under the effect of persistence of vision, projection plane forms stable pattern and shows.According to pointolite of selecting for use and the brightness that will shine, every row can be adorned one or more independent point light sources on the pointolite plate, and the rotation projection principle of each independent point light source is the same.Pointolite can be laser diode, LED lamp etc.Standby single color point light source during monochromatic the demonstration, colour is then used RGB three color dot light sources.A pointolite on the pointolite plate can be controlled the demonstration of delegation's pattern by rotating polygon mirror reflection, and the position of the row of this row is determined by the residing position of rotation of the polygon mirror of turning axle.

Adopt scrambler can realize the accurate location of position of rotation, thereby avoided rocking of image that projection forms.

The pointolite plate is provided with circuit board, circuit board and scrambler and computer have line, so that obtain the displaying contents that scrambler position of rotation pulse information and needs show, contain the control circuit of reference mark light source independent switch on the circuit board, refresh with the variation that realizes dynamic image content.

The beneficial effects of the utility model are, have realized a kind of novel outdoor projection arrangement, and are simple in structure, with low cost, brightness is enough, can a plurality of splicings be used on man in a responsible position's billboard of up to a hundred square metres, also can be used on the body of wall projection, possess the advantage that high-high brightness is adjustable is installed simply.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is embodiment of the present utility model (one's) a structural representation.

1. pedestals among the figure, 2. scrambler, 3. motor, 4. turning axle, 5. circuit board, 6. pointolite plate, 7. pointolite, 8. computer, 9. blue hot spot, 10. polygon catoptron, 11. projection plane, 12. red hot spots, 13. green spot, 14. monolateral catoptrons.

Fig. 2 is the cross section structure synoptic diagram of embodiment of the present utility model (two).

1. pedestals among the figure, 2. scrambler, 3. motor, 4. turning axle, 5. circuit board, 6. pointolite plate, 7. pointolite, 8. computer, 9. blue hot spot, 10. polygon catoptron, 11. projection plane, 12. red hot spots, 13. green spot.

Embodiment

In (one) embodiment illustrated in fig. 1, the application scenario of this embodiment is that the body of wall dynamic effect shows, The flowers bloom luxuriantly to be implemented on the metope of buildings one circle Projection Display, white clouds dynamic effect decorative constructure such as drift, and can show the dynamic advertising content.Projection plane is a metope.Specific implementation method is: in the body of wall level rotating and projection device that one row is with catoptron is housed, by the dynamic projection of synchronous realization metope.Constituting of each rotating and projection device: pedestal (1) is fixing on the wall, motor (3) is arranged on the pedestal (1), motor (3) driven rotary axle (4) rotation, scrambler (2) is housed on the motor (3), be shaped as pentagonal polygon catoptron (10) on the turning axle (4), polygon catoptron (10) can be followed turning axle (4) rotation and rotation together; Pedestal (1) is gone up also has a pointolite plate (6) and monolateral catoptron (14), 24 focused point light sources (7) are arranged on the pointolite plate (6), pointolite (7) is the LED of highlighted focusing, press R (redness), G (green), B (blueness) order is staggered, and its putting in order on pointolite plate (6) is RGBRGBRGBRGBRGBRGBRGBRGB.Motor (3) per second rotation 20 circles, projection plane is a metope, every group of synthetic colour element of RGB.

Suppose that in projection plane be 24*8 the round lattice that draw on the metope, be designated 24 row, 8 row, then each circle lattice is represented the projected spot that can independently control, corresponding a color component (R or G or B) of wanting a pixel of content displayed is so projection plane has (24/3) * 8=64 colour element.The corresponding motor in the position of the row at its place (3) rotation stop place is by the P-pulse indication of scrambler (2).Arm processor logic card (5) is arranged on the pointolite plate (6), the light on and off of circuit board (5) reference mark light source (7), circuit board (5) obtains displaying contents by line on it and computer (8) contact, is connected with scrambler (2) to obtain the real time position pulse information.When turning axle (4) rotates, circuit board (5) reads the positional information of scrambler (2), suppose in current display frame, to want content displayed to be " E " letter, be designated thick frame circle at its stroke of corresponding projection plane (11) so, projected spot should be red light spot (12) or green spot (13) or blue hot spot (9) mutually according to the color of pointolite.With a focused point light sources (7) is example, when turning axle (4) rotates to some positions, if this moment, one pointolite just can and rotate polygon catoptron (10) twice reflected illumination to certain black surround circle of projection surface through monolateral catoptron (14), then circuit board (5) is lighted a bit of time T 1 of this pointolite, and this time T1 is that turning axle (4) rotates to the run duration of this pointolite can corresponding shine next adjacent circles on the projection surface time.Otherwise when rotating to pointolite when shining thin frame circle on any projection surface, a period of time T2 that then goes out, T2 are that turning axle (4) rotates to the run duration that this pointolite can corresponding shine next adjacent circles.Because turning axle (4) is with at the uniform velocity rotation, angular velocity is basic identical, but linear velocity difference, so T1 is not equal to T2, by calculating different residence time of these circle light on and off form with form is existed in the program, in the time of operation, take out, be associated with the position output of scrambler (2) by corresponding one by one again with getting final product, just can be according to the light on and off time of the pointolite (7) on the pulse output commit point light source board (6) of scrambler (2).The light on and off time that circuit board (5) is handled 24 pointolites simultaneously according to scrambler (2) position.When turning axle (4) continues rotation, just shown projection English alphabet " E " on the metope, though motor (3) can not be definitely at the uniform velocity, can realize rotating projection by the accurate location of scrambler (2) and refresh and can not form the shake of throwing picture.Because turning axle (4) whenever rotates a circle, pointolite (7) reflects respectively through five limit catoptrons and refreshes projection plane five times, so the irradiation frequency that refreshes of each circle is 20*5=100 time/second, can form animation effect according to persistence of vision.

In (two) embodiment illustrated in fig. 2, saved monolateral catoptron, mainly being used in does not need to piece together under the situation of screen, because light is backprojection, thus there is more projection blind spot, but owing to saved monolateral catoptron, so more convenient assembling.Specific implementation method is: pedestal (1) is fixing on the wall, motor (3) is arranged on the pedestal (1), motor (3) driven rotary axle (4) rotation, scrambler (2) is housed on the motor (3), be shaped as pentagonal polygon catoptron (10) on the turning axle (4), polygon catoptron (10) can be followed turning axle (4) rotation and rotation together; Pedestal (1) is gone up also has a pointolite plate (6), 24 focused point light sources (7) are arranged on the pointolite plate (6), pointolite (7) is the LED of highlighted focusing, press R (redness), G (green), B (blueness) order is staggered, and its putting in order on pointolite plate (6) is RGBRGBRGBRGBRGBRGBRGBRGB.Motor (3) per second rotation 20 circles, polygon catoptron (10) reflection back projection plane is a metope, size is (24/3) * 8=64 colour element.The LED pointolite (7) of highlighted focusing directly is incident upon on the polygon catoptron (10) of rotation, when turning axle (4) rotates, processor circuit board (5) on the pointolite plate (6) obtains the P-pulse information of scrambler (2) by line, obtain wanting the light on and off of content displayed and then reference mark light source from computer (8), form red hot spot (12), green spot (13), blue hot spot (9) in corresponding projection plane (11), thereby on metope, project the dynamic color image.

Claims (1)

1. projection arrangement with catoptron, it is characterized in that: on the pedestal of the motor of being with scrambler, be fixed with turning axle and pointolite plate, be fixed with catoptron on the turning axle, focused point light sources and control circuit are arranged on the pointolite plate, when turning axle rotates, under the control of control circuit on the pointolite plate, each pointolite projects display plane and forms the dynamic image demonstration after the rotary reflection mirror reflection.