KR101916329B1 - Projector and lamp equipped with projector - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projector for diffusing, projecting, and illuminating images of characters, symbols, figures and the like of a specific shape, and a lighting apparatus having the projector. More particularly, And more particularly to a projector capable of image conversion that can freely convert an image to be projected as needed, and a lighting apparatus having the projector.

Description

TECHNICAL FIELD [0001] The present invention relates to a projector capable of image conversion,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projector for diffusing, projecting, and illuminating images of characters, symbols, figures and the like of a specific shape, and a lighting apparatus having the projector. More particularly, And more particularly to a projector capable of image conversion that can freely convert an image to be projected as needed, and a lighting apparatus having the projector.

In general, streetlights and security lights are lighting devices that illuminate lights installed on roads, parks, alleys, etc. for convenience of night driving vehicles or pedestrians, crime prevention, etc. The main function of these lighting devices is limited to simple night lighting Therefore, there is a limitation in that it is not possible to separately project the features of the installation site, warning texts, and announcement texts.

On the other hand, unlike the above illuminating device, there is a projector that projects an image such as a specific character, symbol, figure or the like to the outside by using transmitted light. Such a projector has a function of transmitting information through a projected image, .

Accordingly, devices for implementing information transmission or design functions together with a night lighting function by combining the projector with an illumination device such as a streetlight or a security light have been developed.

As a conventional technique of such a device, there is a " Streetlight image illumination device ", registered patent No. 10-0938171,

The above-mentioned prior art includes a streetlight light source installed in the back, an image light source, and an image light transmitting member for transmitting only the image portion of light incident from the image light source by printing a specific type of image, In addition to the function, it forms various real image with light and provides the effect of realizing the theme-type and culture-type streetlight image lighting that matches with the surrounding environment.

However, in the above-described conventional art, an image of a specific type is drawn on the image light-transmitting member. Therefore, when the image to be projected needs to be changed, the image light-transmitting member must be separately manufactured and replaced.

That is, when the image to be projected needs to be changed due to a change in the surrounding environment of the place where the streetlight image illuminating device is installed, the conventional art needs to replace the image light transmitting member itself inside the backlight, There is a problem that the cost required for replacing such an image light transmitting member is excessively high and a considerable time is required for the replacement operation.

In addition, since the conventional technique projects only a fixed image, the image can not be changed automatically or by a user's operation in a predetermined cycle, and the information transfer function is limited. Thus, This is an impossible problem.

Accordingly, the present invention has been made to solve the above-mentioned problems,

An image projection unit having an LCD panel capable of image conversion is provided so that the image of the image projection unit can be freely converted through wireless operation without having to newly produce and replace the image projection unit of the projector when the image to be projected needs to be changed And a lighting apparatus including the same.

In order to achieve the above object, a projector according to the present invention includes:

Light source;

And an image projection unit for projecting and illuminating the light emitted from the light source with a specific image,

The image projection unit may include an LCD panel capable of image conversion.

In the projector according to the present invention,

Wherein the control unit for converting the image of the image projection unit comprises a wireless communication unit,

And the user can convert the image of the image projection unit to wireless using the terminal.

In addition, the lighting device according to the present invention

A main body having an illumination unit; And

And a projector mounted on the main body to project and illuminate a specific image,

The projector includes:

Light source;

And an image projection unit for projecting and illuminating the light emitted from the light source with a specific image,

The image projection unit may include an LCD panel capable of image conversion.

Further, in the lighting apparatus according to the present invention,

Wherein the control unit for converting the image of the image projection unit comprises a wireless communication unit,

And the user can convert the image of the image projection unit to wireless using the terminal.

 The projector according to the present invention and the illuminating device having the same can convert an image of an image projection unit using an LCD panel and thus it is unnecessary to manufacture and replace a new image projection unit when the image needs to be changed,

The image can be easily converted by wirelessly operating the image projection unit through the wireless communication unit, so that it is very convenient to use,

Since the image conversion is easy, it is possible to change the image according to the change of the surrounding environment or the administrator's needs, and to control the image conversion periodically according to the case, so that it can be utilized as a projector and a lighting device for design purpose. And the effect is extremely excellent.

1 is a perspective view showing a projector according to the present invention;
Figs. 2 and 3 are exploded perspective views of Fig. 1; Fig.
Fig. 4 is a sectional view of Fig. 1; Fig.
5 is a view for explaining an image conversion method using the LCD panel of the present invention.
6 is a perspective view schematically showing a lighting apparatus according to the present invention and an exploded perspective view of the projector.
7 is a side view schematically illustrating an embodiment of a lighting device according to the present invention.

While the present invention has been described in connection with certain embodiments, it is obvious that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

In the drawings, the same reference numerals are used for the same reference numerals, and in particular, the numerals of the tens and the digits of the digits, the digits of the tens, the digits of the digits and the alphabets are the same, Members referred to by reference numerals can be identified as members corresponding to these standards.

In the drawings, the components are expressed by exaggeratingly larger (or thicker) or smaller (or thinner) in size or thickness in consideration of the convenience of understanding, etc. However, It should not be.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise.

 In the present application, the term " comprising " or " consisting of ", or the like, refers to the presence of a feature, a number, a step, an operation, an element, a component, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

It is to be understood that the first to second aspects described in the present specification are merely referred to in order to distinguish between different components and are not limited to the order in which they are manufactured, It may not match.

In describing the projection apparatus and the illumination apparatus according to the present invention, when an unambiguous approximate direction reference is referred to as 1 for convenience, the gravity acts on the basis of the direction in which the lens unit 50 is viewed Direction is set to be downward, downward, leftward and rightward as viewed in the direction of the downward direction, and direction is specified according to this standard unless otherwise specified in the detailed description and claims of the invention relating to other drawings.

Prior to the description, the projector (P) of the present invention is not only used for a specific use but also can be used separately from lighting in addition to the lighting device (L)

Such a lighting apparatus L is applicable to all types of lighting apparatuses L capable of implementing specific information transfer or design functions together with a night lighting function such as a street light, security, etc., The illuminating device L to be used is exemplarily described but not limited thereto, and the interpretation of rights of the present invention should not be limited in this regard.

Hereinafter, a projector P capable of image conversion according to the present invention and a lighting apparatus L having the projector P will be described with reference to the accompanying drawings.

1 to 4, a projector P according to the present invention mainly includes a body 10 having a light source 20, an image projection unit 40, and a lens unit 50, And a mounting member 70 capable of mounting the projector P by adjusting the image irradiation direction.

The body 10 is provided with a pipe-shaped barrel portion 11 having a predetermined length so as to prevent mutual interference with the light of the illumination portion 110 provided in the illuminating device L described later. A heat dissipating member 30 having a light source 20 coupled to the rear end of the lens barrel 11 and a lens unit 50 mounted on the front end of the lens barrel 11, The image projection unit 40 is mounted.

Reference numeral 12 denotes a lens mounting part which is coupled to the front end of the lens barrel 11 and is used for adjusting the position of the lens by interpolating the body of the lens part 50. [

The casing 10 is provided with a casing coupling portion 13 on its lower face and has a cable passage hole 13a penetrating the lower portion of the barrel portion 11, a screw hole 13b, And a shaft portion 14 to which the mounting member 70 is hinged is formed on both side surfaces thereof.

Particularly, at the rear end of the body 10, a cutout portion 11a formed by cutting a part of the barrel portion 11 is provided so that the radiation member 30 is exposed to the outside.

The light source 20 is configured in the form of a substrate 22 on which one or more LED lamps 21 (light emitting diodes) are mounted, and is coupled to the front plate of the heat dissipating member 30.

The substrate 22 is provided with a plurality of communication portions 22a for communicating the space on the rear side of the heat radiation member 30 and the space on the front side of the substrate 22 to each other, .

The heat dissipating member 30 has a cylindrical shape corresponding to the barrel portion 11 and has a substrate joining groove on the front plate and a hollow portion having a rear end opened rearwardly of the front plate, Respectively.

The heat dissipating member 30 includes a plurality of first radiating fins 33 formed on the outer circumferential surface in a circumferential direction and having a concavo-convex structure. The plurality of second radiating fins 33 protrude from the rear surface of the front plate, A radiating fin 34 is provided.

The plurality of second radiating fins 34 may be circular and concentrically spaced apart from each other by a predetermined distance and may include a spacing portion 34a formed by cutting a part of the second radiating fin 34,

And the air-contacting area of the second radiating fins (34) is maximized, thereby maximizing the cooling efficiency.

The heat dissipating member 30 is inserted into the barrel 11 through a screw hole 13b formed in the casing coupling portion 13 so that a bolt And may be used to adjust the coupling position of the heat dissipating member 30 by changing the position of the groove 33a to which the bolt is fastened.

The bolts for fixing the heat dissipating member 30 are exposed to the interior of the casing 60 to assist the heat transfer medium to transmit the heat generated from the control unit 61 to the heat dissipating member 30 through the bolts.

And is provided in front of the light source 20 (between the light source 20 and the image projection unit 40) to condense and amplify the light emitted from the light source 20 to pass through the image projection unit 40, And a condenser lens 24 for amplifying light to form parallel light is mounted on the optical amplifier 34. The condenser lens 24 may be a condenser lens, .

The condensing lens 24 is mounted on the inner circumferential surface of the lens barrel 11 by being fitted into the lens mount 25. The lens barrel 25 has a plurality of through portions 25b are radially arranged to perform a thermocycling function and one of the passing portions 25b is fitted to the cable passage hole 13a so that cable connection and air circulation between the control portion 61 and the substrate 22 .

Reference numeral 26 denotes a cap for fixing the condensing lens 24 to the lens mounting member 25. [

The image projecting unit 40 is mounted in a mounting groove provided in the inner peripheral surface of the lens barrel 11 and is mounted on the light source 20 so that the light projected from the light source 20, So that the parallel light is projected and illuminated onto a specific image.

The light passing through the image projection unit 40 can be both monochromatic and color, and allows forward light to be projected and illuminated onto a specific image.

The image to be projected in the present invention can be variously used and used for various countries, such as specific letters, numbers, symbols, figures, pictures, logos and patterns, as well as various information, Means any shape, shape, color, or combination thereof for the purpose of ensuring any marking scheme or functionality for advertisement, design, warning, etc., or for improving design or aesthetics.

In particular, the present invention provides an image projection unit (40) that introduces an LCD panel (41) capable of image conversion and automatically converts images at predetermined intervals through a control unit (61) ) Can be separately operated so that the image can be converted only when necessary.

In the LCD panel 41, a liquid crystal portion is coupled to the panel mounting member 42 and fitted in the mounting groove, and a fitting groove 13c is formed in the casing fitting portion 13 at a position corresponding to the mounting groove The panel mounting member 42 is inserted into the casing 60 and the LCD panel 41 and the control unit 61 are electrically connected.

The image projection method of the image projection unit 40 includes attaching a vertical polarizer and a horizontal polarizer on both sides of the liquid crystal unit constituting the LCD panel 41 and then turning on and off the vertical polarizer as shown in FIG. By controlling the twist of the liquid crystal molecules and allowing the light to selectively transmit through the horizontal polarizer, a desired image can be arbitrarily created and changed.

Therefore, unlike the conventional film transmission type projector, the present invention can freely implement and change an image through continuous transformation of various types of images or images, so that the projector can be easily used according to a necessary purpose.

The image conversion using the LCD panel 41 may be connected to the control unit 61 through a wired communication network so that it can be controlled in a separate management room. However, it is preferable that wireless operation can be performed in consideration of easiness of image change and management.

As shown in FIGS. 1 to 4, the lens unit 50 diffuses the light passing through the image projection unit 40 into an image, and diffuses the transmitted light into a predetermined size. A body 52 for slidably coupling the diffusion lens 51 to the lens mount 12 and a diffusion lens 51 for coupling the diffusion lens 51 to the body 52, And a fixed cap 53 fixed to the front end portion.

The diffusing lens 51 arranges one or more lenses in the longitudinal direction of the lens unit 50 to adjust the diffusion and the surface of the projected image,

In the figure, one double-sided convex lens is exemplarily shown as the diffusing lens 51.

Alternatively, the lens portion 50 may include a first double-convex lens having a front portion projecting relatively thicker than a rear portion thereof, a second double-side convex lens having a rear portion projecting relatively thicker than the front portion, A concave convex lens having a deep concavity and a front convex lens having a front portion projecting and a rear portion flat are sequentially arranged from a rear end portion to a front end portion of the lens portion 50, Lt; / RTI >

The body portion 52 having the diffusing lens constructed of the lens assembly is inserted into the lens mounting portion 12 so as to be adjustable in the length of the pulling out so that the operator can insert the pulling- By adjusting the length, it is possible to adjust the focusing or zooming function according to the distance between the projector P and the surface (wall surface, bottom surface, ceiling, etc.) on which the image is projected and illuminated.

The casing (60) is coupled to the casing coupling part (13) of the body (10) to protect the control part (61) provided therein.

The control unit 61 is embedded in the casing 60 and is electrically connected to the light source 20 and the LCD panel 41 to control the LED lamp 21 to be turned on and off, And is a PCB substrate on which various devices and / or chips are mounted, which is responsible for various electrical control functions such as image conversion of the panel 41.

The control unit 61 includes a wireless communication unit so that the user can convert the image of the image projection unit 40 to wireless using the terminal.

In the drawing, an IR receiver 62 is shown as a wireless communication unit that receives an operation signal of a remote control terminal and loads image information stored in a memory to be displayed on the LCD panel 41. However, the IR receiver 62 is not limited thereto,

Known means capable of wireless communication such as Bluetooth or Wi-Fi may be used as the wireless communication unit. By introducing such a two-way wireless communication unit, the user can access the control unit 61 by using a terminal such as a tablet PC, Or the image information to be changed is transferred to the memory so that the image projected from the projector P can be easily converted or changed.

Reference numeral 63 denotes an RF cover which is exposed outside the casing 60 to hold an infrared signal transmitted from the remote control terminal to reach the IR receiver 62. Reference numeral 64 denotes a cable connection portion for supplying power .

Of course, it is also possible to supply power to the control unit using a battery rather than a wire.

Meanwhile, the control unit 61 further includes a USB memory port 65.

The USB memory port 65 is exposed to one side of the casing 60 and can utilize the USB memory as an auxiliary storage device.

In particular, since the projector P of the present invention can be used for external facilities such as a streetlight, the casing 60 is provided with a lid 66 covering the USB memory port 65, And is also protected by the lid 66 when the USB memory is used.

The mounting member 70 can adjust the angle of the image projection direction of the projector P while mounting the projector P to the illumination device L or the like. The mounting member 70 has one end hinged to the shaft portion 14 And the mounting plate 71 is provided at the other end.

The mounting plate 71 is provided with a bolt coupling hole 71a to which the mounting member 70 can be bolted to the lighting device L or the like and the shaft coupling portion 72 of the mounting member 70 is provided with a body 10 so that the protruding portion of the shaft portion 14 is engaged with the groove of the toothed portion 72a to change the image projection direction through the angle adjustment of the projector P have.

Next, a lighting apparatus L provided with the above-described projector P will be described.

6 and 7, a lighting apparatus L according to the present invention mainly includes a main body 100 having an illumination unit 110, and the projector P.

The main body 100 is used for a street lamp or a security lamp and includes a lighting unit 110 installed on a support 1 connected to the upper end of a support and for performing a night illumination function differently from the image illumination of the projector P. [

The illumination unit 110 includes a substrate 111 on which the LED lamp 111a is mounted like the light source 20 of the projector P. The difference between the illumination unit 110 and the light source 20 is that the light source The illumination unit 110 is configured such that the main body 100 is installed at a relatively lower brightness than that of the light source 20 while the illumination unit 20 is suitable for projection and illumination of a specific image by emitting light only to a predetermined surface with a very high brightness. And the surrounding environment can be revealed as a whole.

Therefore, it is preferable that the illumination unit 110 includes a plurality of LED lamps 111a.

The light-transmissive member 112 may be additionally provided in front of the illuminating unit 110 so as to project light in all directions. In addition, the illuminating unit may include a general street light or a security light, .

The main body 100 is provided with a projector mounting part on one side of the illuminating part 110. The projector mounting part is composed of a screw base in which the mounting plate 71 of the mounting member 70 is bolted.

The illumination device L illuminates the illumination unit 110 at night and uses the illumination unit 110 as a night illumination and illuminates the projector P at all times or when necessary so that a specific image is projected separately from the light of the illumination unit 110, As described above, the image to be projected can be easily converted and changed through an image projecting unit 40 including the LCD panel 41 without a need for a separate replacement work or the like.

While the present invention has been described with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the details of the foregoing description, Changes and substitutions are possible, and such modifications, alterations, and substitutions are to be construed as falling within the scope of the present invention.

P: Projector
10: body 11: barrel section 11a: incision section
12: Lens mounting portion 13: Casing coupling portion 13a: Through hole
13b: screw hole 13c: fitting groove 14:
14a: protrusion
20: light source 21: LED lamp 22: substrate
22a: communication unit 23: optical amplification unit 24: condensing lens
25: lens mounting member 25a: skirt portion 25b:
26: Cap
30: heat dissipating member 33: first radiating fin 33a: groove
34: second radiating fin 34a:
40: image projection part 41: LCD panel 42: panel mounting member
50: Lens part 51: Diffusion lens 52: Body part
53: fixed cap 60: casing 61:
62: IR receiver 63: RF cover 64: Cable connection
65: USB memory port 66: Cover 66a:
70: mounting member 71: mounting plate 71a: bolt coupling hole
72: shaft coupling portion 72a:

Claims (4)

A light source 20;
And an image projection unit (40) for projecting and illuminating light emitted from the light source (20) onto a specific image,
The image projection unit 40 includes an LCD panel 41 capable of image conversion,
The image projection unit 40 may be configured to attach a vertical polarizer and a horizontal polarizer to both sides of a liquid crystal unit constituting the LCD panel 41 to control twisting of liquid crystal molecules through power on / off of the vertical polarizer, By selectively transmitting the horizontal polarizing plate, a desired image can be arbitrarily created and changed,

A casing 60 having a control section 61 and a casing 60 having a light source 20, an image projection section 40 and a lens section 50, And a mounting member (70) that can be mounted,
The body 10 is provided with a pipe-shaped barrel portion 11 and is provided with a heat dissipating member 30 to which a light source 20 is coupled at a rear end portion of the barrel portion 11, The image projection portion 40 is mounted between the light source 20 and the lens portion 50 and the casing engagement portion 13 is provided on the lower surface thereof. A shaft portion 14 to which the heat dissipating member 30 is exposed so as to be exposed to the outside and to which the mounting member 70 is hinged is formed on both sides of the cutout portion 11a formed by cutting a part of the barrel portion 11 Respectively,
The light source 20 is configured in the form of a substrate 22 on which at least one LED lamp 21 is mounted and is coupled to the front plate of the heat radiation member 30,
The heat dissipating member 30 has a cylindrical shape corresponding to the lens barrel 11 and has a front surface plate coupling groove. The front end of the heat radiating member 30 is inserted into the lens barrel 11,
The heat dissipating member 30 includes a plurality of first radiating fins 33 formed on the outer circumferential surface in a circumferential direction in a concavo-convex structure, and a plurality of second radiating fins 33 protruding rearward from the front plate, (34)
A condensing lens 24 for condensing and amplifying light emitted from the light source 20 and passing the condensed light through the image projection unit 40 is mounted in front of the light source,
The lens unit 50 includes at least one diffusion lens 51 capable of diffusing transmitted light to a predetermined size,
The casing 60 is coupled to the casing engagement portion 13 of the body 10 to protect the control portion 61 provided therein,
The mounting member 70 can adjust the angle of the image projection direction and has one end hinged to the shaft 14 and a mounting plate 71 at the other end, The projecting portion of the shaft portion 14 is engaged with the groove of the toothed portion 72a and the angle of the projector P is adjusted by providing a toothed portion 72a for fixing and fixing the body 10 Features a projector.
The method according to claim 1,
The control unit 61 for converting the image of the image projection unit 40 includes a wireless communication unit,
And the user can convert the image of the image projection unit (40) to wireless using the terminal.
delete A main body 100 provided with a lighting unit; And
And a projector (P) mounted on the main body (100) for projecting and illuminating a specific image,

The projector (P)
A light source 20;
And an image projection unit (40) for projecting and illuminating light emitted from the light source (20) onto a specific image,
The image projection unit 40 includes an LCD panel 41 capable of image conversion,
The image projection unit 40 may be configured to attach a vertical polarizer and a horizontal polarizer to both sides of a liquid crystal unit constituting the LCD panel 41 to control twisting of liquid crystal molecules through power on / off of the vertical polarizer, By selectively transmitting the horizontal polarizing plate, a desired image can be arbitrarily created and changed,
A casing 60 having a control section 61 and a casing 60 having a light source 20, an image projection section 40 and a lens section 50, And a mounting member (70) that can be mounted,
The body 10 is provided with a pipe-shaped barrel portion 11 and is provided with a heat dissipating member 30 to which a light source 20 is coupled at a rear end portion of the barrel portion 11, The image projection portion 40 is mounted between the light source 20 and the lens portion 50 and the casing engagement portion 13 is provided on the lower surface thereof. A shaft portion 14 to which the heat dissipating member 30 is exposed so as to be exposed to the outside and to which the mounting member 70 is hinged is formed on both sides of the cutout portion 11a formed by cutting a part of the barrel portion 11 Respectively,
The light source 20 is configured in the form of a substrate 22 on which at least one LED lamp 21 is mounted and is coupled to the front plate of the heat radiation member 30,
The heat dissipating member 30 has a cylindrical shape corresponding to the lens barrel 11 and has a front surface plate coupling groove. The front end of the heat radiating member 30 is inserted into the lens barrel 11,
The heat dissipating member 30 includes a plurality of first radiating fins 33 formed on the outer circumferential surface in a circumferential direction in a concavo-convex structure, and a plurality of second radiating fins 33 protruding rearward from the front plate, (34)
A condensing lens 24 for condensing and amplifying light emitted from the light source 20 and passing the condensed light through the image projection unit 40 is mounted in front of the light source,
The lens unit 50 includes at least one diffusion lens 51 capable of diffusing transmitted light to a predetermined size,
The casing 60 is coupled to the casing engagement portion 13 of the body 10 to protect the control portion 61 provided therein,
The mounting member 70 can adjust the angle of the image projection direction and has one end hinged to the shaft 14 and a mounting plate 71 at the other end, The projecting portion of the shaft portion 14 is engaged with the groove of the toothed portion 72a and the angle of the projector P is adjusted by providing a toothed portion 72a for fixing and fixing the body 10 Characterized by a lighting device.

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