KR20200034174A - Display lighting apparatus based on micro-mirror - Google Patents

Abstract

The present invention discloses a micro-mirror-based image lighting apparatus. According to the present invention, the micro-mirror-based image lighting apparatus is a lighting apparatus which displays an image of a computer on a subject based on the micro-mirror. The lighting device comprises: a main body having a reflective surface on one side of a body; an irradiation means having an array of micro-mirrors for irradiating the subject with a light source disposed on the reflective surface of the main body; and a control means controlling the irradiation means to implement lighting of a pattern same to the image of the computer. In this way, indoor and outdoor lighting can be matched in a process of manufacturing various video objects, and the suitability of implementing various lighting patterns is maintained to increase the utilization for various purposes even if the lighting device is large in appearance.

Description

Display lighting apparatus based on micro-mirror

The present invention relates to an image lighting apparatus, and more particularly, to a micro-mirror-based image lighting apparatus that is easy to match indoor and outdoor lighting in the process of manufacturing various video objects.

In the process of photographing a conventional movie, drama, or pictorial, the lighting of the indoor and outdoor environments must be secured as planned, so that the quality of the video or photo is doubled. However, the device for providing such lighting is inconvenient and expensive because it is used with accessories such as a filter, a diffuser, and a jig giving linearity.

As an example of the prior art documents related to this, Korean Patent Publication No. 2011-0088108 discloses a lighting luminaire supporting a light-emitting lamp; A power connector installed in the lighting fixture and supplying power to the light emitting lamp; And a sub-connector installed in the lighting fixture and electrically connected to the power connector to supply power to the other lighting fixture. And the like.

This can be easily set and changed by connecting the electric wire directly to the lighting device, but there is no change in the method of suspending a plurality of lighting devices horizontally and vertically on the support, which causes inconvenience.

As another example of the prior art literature, Korean Patent Publication No. 1034935 applies 7 to 9 LEDs to each block, applies a phosphor to have a color temperature for each row of blocks, and applies a multi-chip LED and a cooling unit. It is composed of a power supply unit that operates and controls them while supplying power to them.

This can produce a variety of lighting in a short period of time with a single lighting device, but its suitability is reduced for large size due to flicker, heat generation, and high cost of the LED.

As another example of the prior art document, Korean Patent Publication No. 0726737 discloses a micromirror array that reflects and irradiates incident light at a predetermined angle; A first microlens array for condensing incident light onto a reflective surface of the micromirror; And a second microlens array that refracts the reflected light irradiated from the micromirror into parallel light.

This is a display that increases the efficiency of light utilization and improves the quality of the display screen, so it is insufficient to be used as a lighting device for producing a video, so there is much room for improvement.

Korean Patent Application Publication No. 2011-0088108 “Shooting and Lighting System for Video Production” (Publication Date: 2011.08.03.) Korean Registered Patent Publication No. 1034935 “LD lighting device for broadcasting and photography” (published date: 2011.02.09.) Korean Registered Patent Publication No. 0726737 “Projection display device using microlens array and micromirror array” (published: 2007.01.09.)

An object of the present invention for improving the above-described conventional problems, is a micro-mirror-based image lighting device that is easy to match indoor and outdoor lighting in the process of manufacturing various video objects and maintains the suitability of implementing various lighting patterns even when it is enlarged in appearance. To provide.

The present invention, in order to solve the above-described technical problem, in a lighting device for displaying a computer image on a subject based on a micro-mirror, a body having a reflective surface on one surface of the body, and disposed on the reflective surface of the body A micro-mirror-based image lighting apparatus comprising: an irradiation means having an array of micro-mirrors for irradiating a subject with a light source and control means for controlling the irradiation means to realize illumination of the same pattern as the image of the computer. to provide.

According to an embodiment of the present invention, the light source may be provided in plural.

According to another embodiment of the present invention, the reflective surface may be provided in plural.

According to another embodiment of the present invention, one side of the main body may further include a camera.

According to another embodiment of the present invention, the main body may further include a driving means.

According to another embodiment of the present invention, the driving means may be a piezoelectric actuator-type mirror driver to cause posture variation of the micro mirror.

According to another embodiment of the present invention, the driving means may be further provided with a body actuator to cause rotation of the body supported through a guide on the body.

According to another embodiment of the present invention, the control means includes a lighting compensator and a brightness control unit on a controller composed of a microcomputer circuit, and the lighting compensator corrects the lighting pattern of the subject in response to the camera input and adjusts the brightness. The part may be to adjust the lighting brightness with the frequency and duty of the posture fluctuation of the micro mirror.

According to another embodiment of the present invention, the light source may be a color rendering property of 90 CRI or more.

As described above, according to the present invention, it is easy to match indoor and outdoor lighting in the process of manufacturing various video objects and maintains the suitability of implementing various lighting patterns even if it is enlarged externally, thereby increasing the utilization for various purposes.

1 is a schematic view showing a state of use of the lighting device according to the present invention,
2 is a view schematically showing an example of the lighting device of the present invention, (A) is an array of micromirrors, (B) is a cross section of the micromirror showing the shape driven by the driver around the hinge,
3 is a view conceptually showing another example of the lighting device of the present invention,
4 is a view showing the main body of the lighting device from the front of FIG. 3,
5 is a block diagram showing the circuit connection of the lighting device according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail preferred embodiments that can be easily carried out by the person of ordinary skill in the art.

However, in the detailed description of the operating principle for the preferred embodiment of the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

This is to more clearly communicate the core of the present invention by omitting unnecessary description.

In addition, the present invention can be applied to various changes and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description, but this is not intended to limit the present invention to specific embodiments. , It should be understood to include all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

In addition, terms including ordinal numbers such as first and second are used to describe various components, and are used only to distinguish one component from other components, and to limit the components It is not used.

For example, the second component may be referred to as a first component without departing from the scope of the present invention, and similarly, the first component may also be referred to as a second component.

In addition, when referring to a component being "connected" or "connected" to another component, it means that it can be connected or connected logically or physically. In other words, it may be understood that a component may be directly connected to or connected to other components, but other components may exist in the middle and may be connected or connected indirectly.

In addition, the terms used herein are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In addition, terms such as "comprises" or "have" described herein are intended to designate the existence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, or one or more thereof. It should be understood that the above or other features or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

1 is a schematic view showing a state of use of the lighting device according to the present invention, Figure 2 is a view schematically showing an example of the lighting device of the present invention, (A) is an array of micromirrors, (B) is a micromirror A cross section of the hinge showing a shape driven by a driver, FIG. 3 is a view conceptually showing another example of the lighting device of the present invention, and FIG. 4 is a picture showing the main body of the lighting device in front of FIG. 3 5 is a block diagram showing the circuit connection of the lighting device according to the present invention, which will be described with reference to this.

The micro-mirror-based image lighting apparatus according to the present invention is a lighting apparatus for displaying an image of a computer 15 on a subject based on a micro-mirror, the main body 20 having a reflective surface 22 on one surface of the body , A plurality of micro-mirrors (36) for reflecting light by a light source (32) arranged to irradiate the reflective surface of the main body (20), and a plurality of to realize the lighting of the same pattern as the image of the computer (15) It is characterized by including a control means for controlling the micro-mirror (36).

In addition, the lighting device relates to a lighting device that displays an image of the computer 15 on the subject 10 based on a micro-mirror, and the computer is a normal personal computer, as well as a laptop, laptop, notepad, smart Refers to an apparatus or system capable of computing, such as a pad, and receiving graphics, graphics, and images provided by a user to drive graphic-based applications.

The light source is preferably a high color rendering white light-emitting diode (LED) of 90 CRI (units) or more, and as another example, a white light-emitting diode in which warm tones or cool tones are respectively or mixed may be used. have.

Here, the micromirror means a digital driving fine mirror, and is a reflector capable of controlling the driving of a micro mirror having a size of several tens of micros in a digital manner.

In addition, it targets lighting in indoor and outdoor environments that are required in the course of filming movies, dramas, and pictorial photos, but is not limited thereto.

 The body may be provided with a reflective surface on one surface of the body, the reflective surface may have a form (A: array, array) of a plurality of micromirrors 36 arranged horizontally and vertically in succession. A plurality of slopes are provided, and various colors can be realized by irradiating the subject through reflection by a multicolor light source.

The micromirror 36 of the array may represent a pixel that is a minimum unit constituting an image of a screen formed on the subject 10.

The micro-mirror may be provided as a square having a length of 10 to 1000 μm on one side, and it is advantageous in terms of simplicity of control and cost reduction to increase or decrease the resolution depending on the purpose of the lighting device. It is difficult to manufacture the micro mirror, and the cost is increased. On the contrary, when it exceeds 1000 µm, the shape of the image on the subject may be coarse.

In driving the micromirror array, the posture of the individual micromirrors 36 can be changed. For example, when the posture is changed so that a specific micromirror 36 rotates 17 degrees, the incident light of the corresponding light source is subject 10 ) Is reflected in the direction to form a specific pixel of the lighting.

The driving means 40 for changing the posture of the individual micromirrors of the array may cause the posture change of the micromirrors 36 with the piezoelectric actuator type mirror actuator 46.

That is, when an external force is applied to an individual micromirror by turning the piezoelectric actuator on / off, an inclination may be formed around a pivot axis hinge 38 disposed across the center of the micromirror to reflect the light source. To irradiate the subject.

Such a piezoelectric actuator has a light and small structure, which can accurately control and generate high torque required for rotation even when the size of the micromirror 36 is small or large, and the micro mirror 36 is a hinge protruding from both sides. By forming (38), it is possible to increase smoothness and accuracy of rotation.

Of course, the mirror actuator 46 can selectively apply a known method such as an electromagnet or a CMOS memory cell in addition to the piezoelectric actuator, so that the subject 10 is displayed as a general flat screen, but at various angles to a three-dimensional object including a person. As it can be investigated, it can be said that the utility value is high.

In the lighting device according to the present invention, the main body 20 is a structure having a plurality of reflective surfaces on one surface of the body 26, and the main body 20 may be formed of various cylindrical structures such as a box, a cylinder, or the like, at least one surface of which is open, , It may be provided with a cover for opening and closing, vents on the other side.

In addition, a camera 58 is further provided on one side of the main body 20, so that the camera captures an image or image irradiated to the subject and inputs it to the control unit, so that the control unit can correct the lighting pattern of the subject 10. .

On the other hand, a reflective surface may be provided to expose at least one surface to the opening of the main body 20, that is, there may be a plurality of reflective surfaces, such as a two-part reflective surface, a three-part reflective surface, and a four-part reflective surface. However, the four-part structure, for example, the inclination angle of the reflective surfaces 21, 22, 23, 24 in the body 26 is set differently according to the scale of the device, and correspondingly, the light source 31 The installation postures of the 32, 33 and 34 are also set differently.

The body 26 of the main body 20 has four reflective surfaces 21, 22, 23, 24, and the irradiation means 30 has four light sources 31, 32, 33, 34 ).

The irradiation means 30 is a light source that is arranged to irradiate the reflective surface of the main body 20 and has a micro mirror 36 for irradiating the subject 10 in the form of an array.

The micro-mirrors 36 provided on the respective reflective surfaces 21, 22, 23 and 24 are arranged sufficiently close to each other to constitute an array (mirror array).

In response to this, the irradiation means 30 may be an R light source (31, red series), a G light source (32, green series), a B light source (33, blue series) or a white light source (34).

The R light source 31, G light source 32, and B light source 33 are suitable for expressing variously synthesized color lighting, while the white light source 34 is suitable for expressing black and white color lighting with a simple control algorithm. .

These light sources are selectively used for fluorescent lighting, high-pressure discharge lamps, LEDs, lasers and other lighting for shooting.

Meanwhile, the main body of the present invention may further include a driving means 40, and any one of the R light source 31, the G light source 32, the B light source 33, and the white light source 34 in driving the light source Based on the function to turn on and off, in addition, it can be configured to additionally vary the illuminance (Lux) of the light source.

In addition, the driving means 40 may further include a body driver 42 to cause rotation of the body 26 supported through the guide 28 on the body 20.

Here, it is possible to illustrate a state in which the body 26 is rotatably supported through a guide 28 on the body 20, and, of course, corresponds to the reflective surfaces 21, 22, 23, 24 Each of the light sources (31, 32, 33, 34) is also interlocked with the micro lens and the body 26 at the same time, it is possible to produce a full natural color of the RGB mixed color of a conventional screen display device.

Accordingly, it is easy to tilt the pattern irradiated onto the subject 10 at a certain angle or rotate it at a desired speed, thereby increasing usefulness by not requiring additional manpower and equipment input in the field of shooting a movie, drama, pictorial, etc. .

In addition, the control means 50 serves to control the irradiation means 30 or the driving means 40 to implement the same pattern of lighting as the image of the computer 15.

The control means 50 is controlled to irradiate the subject to the graphic or picture input through the computer 15, for example, an image expressed by an image program such as Photoshop and Fateshop in the same pattern on the subject 10. Describe it.

That is, the control means 50 may output a command signal to operate the above-described body driver 42, light source driver 44 or mirror driver 46 in response to the input of the computer 15.

In addition, the control means 50 may further include a lighting correction unit 54 and a brightness control unit 56 on a controller 52 composed of a microcomputer circuit.

The illumination compensator 54 corrects the illumination pattern of the subject 10 in response to the input of the camera 58, and the brightness control unit 56 adjusts the illumination brightness with the posture variation frequency and duty of the micro mirror 36. Can be adjusted.

The controller 52 is based on a microcomputer circuit equipped with a microprocessor, memory, and input / output interface, and one of the main algorithms of the controller 52 converts the image of the computer 15 into an irradiation image of the subject 10 Program.

The lighting correction unit 54 and the brightness control unit 56 are mainly composed of subroutine programs stored in the memory area of the controller 52, but may include separate hardware. The camera 58 may be installed at the center or side of the body 26 to capture an image of the subject 10.

As an example of the operation, assuming that the object 10, the computer 15, and the lighting device are prepared, it is assumed that the red and blue squares are represented by the computer 15 image program, and the controller 52 converts this file. And store it in its own memory, then execute the subroutine program, and in the state where the R light source 31 and the B light source 33 are turned on, the corresponding first and second reflecting surfaces 21 and 23 The rotation of the set micro mirror 36 is caused.

Subsequently, when the camera 58 is photographed by the illumination correction unit 54 and the input of this information is checked and the light source and the mirror array are finely adjusted again, the red and blue squares on the subject 10 are clearly and accurately Can be investigated.

In this process, when the brightness control unit 56 is operated by an external input or the like, the brightness of the color circle and the blue circle is adjusted while the rotation frequency and duty of the micro mirror 36 are changed.

Of course, when irradiating with more various colors, the three-color light sources 31, 32, 33 are turned on, and the mixed colors and patterns through the respective reflective surfaces 21, 22, 23 are realized as somewhat abstract images. do. In order to exclude the color from the lighting, it is preferable to use only the white light source 34 and the fourth reflecting surface 24 rather than controlling with RGB mixed color.

10: subject, 15: computer
20: main body, 21, 22, 23, 24: reflective surface
26: body, 28: guide
30: irradiation means, 31: R light source
32: G light source, 33: B light source
34: white light source, 36: micro mirror
38: hinge, 40: driving means
42: body actuator, 44: light source actuator
46: mirror actuator, 50: control means
52: controller, 54: image correction
56: brightness control unit, 58: camera

Claims (9)

A lighting device for displaying a computer image on a subject based on a micro-mirror,
A body having a reflective surface on one side of the body;
Irradiation means having an array of micro mirrors for irradiating a subject with a light source disposed on a reflective surface of the main body; And
And a control means for controlling the irradiation means to implement the same pattern of illumination as the image of the computer.
According to claim 1,
The light source is a micro-mirror-based image lighting apparatus, characterized in that provided in plural.
According to claim 1,
The reflective surface is provided with a plurality of micro-mirror-based image lighting apparatus, characterized in that.
According to claim 1,
A micro-mirror-based image illuminating device, further comprising a camera on one side of the main body.
According to claim 1,
The main body further comprises a driving means micro-mirror-based image lighting apparatus.
The method of claim 5,
The driving means is a micro-mirror-based image lighting apparatus, characterized in that it causes a posture variation of the micro-mirror with a piezoelectric actuator type mirror driver.
The method of claim 5,
The driving means is a micro-mirror-based image lighting apparatus characterized in that it further comprises a body driver to cause the rotation of the body supported by a guide through the body.
According to claim 1,
The control means is provided with a lighting correction unit and a brightness control unit on a controller composed of a microcomputer circuit, the lighting correction unit corrects the lighting pattern of the subject in response to the input of the camera, and the brightness adjustment unit adjusts the posture variation frequency and duty of the micro mirror. Micro-mirror-based image lighting device, characterized in that for adjusting the brightness of the lighting.
According to claim 1,
The light source is a micro-mirror-based image illumination device, characterized in that the color rendering of more than 90 CRI.

Images