LIGHTING APPARATUS HAVING ANGLE INDICATING MEANS BACKGROUND OF THE INVENTION 5 1. Field of the Invention The present invention relates, in general, to lighting apparatuses having angle indicating means and, more particularly, to a lighting apparatus having an angle indicating means, which is mounted to various types of 10 vehicles or equipment, such as an SUV vehicle mainly driven on a rough road, a construction vehicle, mining equipment or a heavy vehicle for construction to secure illumination at night, and which allows an irradiation angle of a light source to be easily and conveniently adjusted depending on various 15 driving conditions, thus ensuring stability of an angle adjusted state, and which can be rotated even at 360 degrees, thus adapting to a site situation and reliably satisfying needs of consumers. 20 2. Description of the Related Art Currently, traditional incandescent lamps, fluorescent lamps, halogen lamps, and even special lamp such as HID lamps are being replaced with LED lamps. Since the LED lamp is small, light, emits little heat, is 25 semi-permanent, and has fast response characteristics, pulse 1 operation characteristics, and optical-power control characteristics by current, the LED lamp has become popular. Technologies related to control characteristics, heat dissipation, and high luminance are continuously being 5 developed. As long as there is no government regulation, the LED lamp is usually adopted to special lighting fields. Related art dealing with angle indicating means that are applied to various lighting apparatuses are as follows: 10 First, Korean U.M. Registration No. 20-0445406 (registered on July 20, 2009) was proposed, which is entitled "Angle adjusting Device for Lighting Apparatus". The cited document relates to the angle adjusting device for the lighting apparatus, which is intended to adjust and 15 maintain the angle of the lighting apparatus so as to illuminate a desired region and obtain lighting effects. However, in the cited document, the lighting apparatus is simply mounted to a support, and the support and the lighting apparatus are mainly installed in a place where vibrations or 20 shocks do not occur, so that this lighting apparatus is suitable for a factory, a physical plant, a flower garden, etc. Hence, this is irrelevant to a technology that enables convenient angle adjustment and offers stability when fixed in an adjusted state. 25 Further, Korean Patent Laid-Open Publication No. 10-2010 2 0100986 (published on Sep. 15, 2010) was proposed, which is entitled "LED-Based Lighting Apparatus for Illuminating Large Structure". The cited document is intended to provide a fixture for a 5 lighting apparatus so as to offer a full-spectrum lighting source that is good in performance and robust as LED technology is developed. This cited fixture for mounting a lighting unit includes a yoke base and a pair of yoke arms attached thereto. 10 However, it is also installed in a place where vibrations or shocks do not occur. Furthermore, Korean Patent No. 10-0997746 (registered on Nov. 25, 2010) was proposed, which is entitled "LED Lighting Apparatus Capable of Changing Irradiation Angle". 15 The cited document relates to the LED lighting apparatus, which is capable of changing an irradiation angle in response to forward and backward movement of a lens assembly obtained by mounting lens elements to a fixed panel, and is capable of adjusting the irradiation angle, and besides is superior in 20 heat dissipating performance, thus being suitable for a light projector. However, as explicitly described in the document, it is suitable for port lighting, a large factory, an indoor or outdoor physical plant, etc., according to the purpose of the 25 light projector. 3 In view of the characteristics of the cited document, an angle adjusting means is applied to a housing having the LED assembly therein, and gradations are marked thereon. By performing a simulation depending on the characteristics of an 5 installation locale, a horizontal angle and a vertical angle are previously adjusted. Thereby, after the apparatus is mounted to a desired position of a site, only a fine control is performed. In such a state, the apparatus is utilized as the light projector. This is suitable for a final aiming 10 operation. This technology is also suitable for a place where vibrations or shocks do not occur. SUMMARY OF THE INVENTION 15 Accordingly, the present invention has been made keeping in mind the above problems occurring in the related art, and an object of the present invention is to provide a lighting apparatus, which adopts an angle indicating means, and is mounted to various types of vehicles or equipment, such as an 20 SUV vehicle mainly driven on a rough road, a construction vehicle, mining equipment or a heavy vehicle for construction to secure illumination at night, thus ensuring a stable fixing force to prevent an angle adjusted state from being changed even if vibrations are generated under various driving 25 conditions. 4 Another object of the present invention is to provide a lighting apparatus, which applies a shock absorbing assembly to a body, thus protecting an angle adjusting means from vibrations, and which prevents a bolt from being loosened from 5 an internal threaded portion, as if a spring washer were applied, due to inherent elasticity of a shock absorbing member of the shock absorbing assembly. A further object of the present invention is to provide a lighting apparatus, which ensures good coupling ability and 10 assemblability for a binding member, a shock absorbing member, and a second fixing member of a shock absorbing assembly, and which further includes an end plate on a mounting means for fixing a body of the lighting apparatus to an object (e.g. a vehicle), and in which a fastening plate of a mounting bracket 15 constituting the mounting means for fixing the body to the object is interposed between a mounting plate constituting an angle indicating means and an end plate, thus considerably increasing a coupling ability. In order to accomplish the above objects, the present 20 invention provides a lighting apparatus having an angle indicating means, including a light source; a body accommodating the light source therein; and a mounting means fixing the body to an object, wherein the mounting means includes a mounting bracket, the mounting bracket having a 25 connecting plate, and a fastening plate connected to each of 5 opposite ends of the connecting plate in such a way as to be bent, with a rotary hole formed in the fastening plate, the lighting apparatus further including an angle indicating means between the fastening plate and the body. 5 In the lighting apparatus having the angle indicating means, the angle indicating means may include a mounting plate disposed between the fastening plate and the body and having an annular groove, and an angle indicating plate coupled to the annular groove of the mounting plate. 10 The mounting means may further include an end plate disposed outside the fastening plate of the mounting bracket. Preferably, the fastening plate of the mounting bracket may include a rotary hole, and the end plate may include an annular guide protrusion that is seated in the rotary hole of 15 the fastening plate. As is apparent from the above description, the lighting apparatus having the angle indicating means according to the present invention is advantageous in that it adopts an angle indicating means that can be freely and easily adjusted, and 20 it is mounted to various types of vehicles or equipment, such as an SUV vehicle mainly driven on a rough road, a construction vehicle, mining equipment or a heavy vehicle for construction to secure illumination at night, thus ensuring a stable fixing force to prevent an angle adjusted state from 25 being changed even if vibrations are generated under various 6 driving conditions, and it applies a shock absorbing assembly to a body, thus protecting an angle adjusting means from vibrations, and it prevents a bolt from being loosened from an internal threaded portion, as if a spring washer were applied, 5 due to inherent elasticity of a shock absorbing member of the shock absorbing assembly, and it ensures good coupling ability and assemblability for a binding member, a shock absorbing member, and a second fixing member of a shock absorbing assembly, and it further includes an end plate on a mounting 10 means for fixing a body of the lighting apparatus to an object (e.g. a vehicle), and a fastening plate of a mounting bracket constituting the mounting means for fixing the body to the object is interposed between a mounting plate constituting an angle indicating means and an end plate to considerably 15 increase a coupling ability, thus allowing an irradiation angle of a light source to be easily and conveniently adjusted depending on various driving conditions, ensuring stability of an angle adjusted state, and enabling the lighting apparatus to be rotated even at 360 degrees and thereby adapting to a 20 site situation and reliably satisfying needs of consumers. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of 25 the present invention will be more clearly understood from the 7 following detailed description taken in conjunction with the accompanying drawings, in which: FIGS. 1A to 1C illustrate a lighting apparatus having an angle indicating means according to the present invention in 5 various perspective views and a photograph; and FIGS. 2 and 3 are exploded perspective views illustrating the lighting apparatus having the angle indicating means according to the present invention, when seen in different directions. 10 DESCRIPTION OF PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. 15 Since the present invention may be variously changed and have several shapes, aspects (or embodiments) of the present invention will be described in detail herein. However, it should be understood that the present invention is not limited to a specific embodiment, but embraces all changes, 20 equivalents, and substitutes within the technical idea and scope of the present invention. The same reference numerals throughout the drawings, that is, the same reference numerals in a second digit and a first digit, or in a second digit, a first digit, and an alphabet 25 character denote elements having the same or similar function. 8 If there is no special mention, the members denoted by the reference numerals are to be comprehended as the members complying with the above-mentioned reference scheme. For clarity and convenience of description, the size or 5 thickness of components shown in the drawings may be expressed to be exaggeratedly large (or thick) or small (or thin), or may be simplified. Furthermore, it should not be interpreted that the scope of this invention is limited to this size or thickness. 10 Terms employed herein are for the purpose of description of particular aspects (or embodiments), and are not intended to limit the present invention. Further, the singular forms "a" and "an" include plural referents unless the context clearly dictates otherwise. In this description, it should be 15 understood that terms such as "include" or "comprise" are inclusive of characteristics, numerals, steps, operations, components, parts or combination thereof, but are not exclusive of one or more different characteristics, numerals, steps, operations, components, parts or combination thereof. 20 Unless the context clearly defines otherwise, all terms or words used herein have the same meaning as common meanings understood by those skilled in the art. Terms defined in a dictionary are to be interpreted as having the same meaning as meanings used in the related art, and should not be 25 interpreted ideally or excessively unless this application 9 clearly defines otherwise. The terms "first", "second", etc. are only used to distinguish one component from another component, and are not restricted by an order in which the components are 5 manufactured. These may be varied in the description and claim. For convenience when various couplings A of the lighting apparatus having the angle indicating means according to the present invention are described, directions are roughly 10 specified in FIGS. 1A to 1C and FIG. 2. As seen in the drawings, the lighting apparatus is divided into upper and lower portions, left and right portions, and front and rear portions. A portion between left and right side surfaces is referred to as an inner portion. 15 Based on the specified direction, the lighting apparatus will be explained in the detailed description related to another drawing and claim. FIG. 1A is a perspective view of the lighting apparatus, FIG. 1B is a photograph corresponding to a side view, FIG. 1C 20 is a view showing the lighting apparatus when a body rotated at 360 degrees, and FIGS. 2 and 3 are exploded perspective views seen from different directions. As shown in the drawings, the lighting apparatus A having the angle indicating means according to the present invention mainly includes a 25 light source 20, a body 10 accommodating the light source 20 10 therein, a mounting means 60 fixing the body 10, particularly the lighting apparatus to an object (e.g. a vehicle), and the angle indicating means disposed between the body 10 and the mounting means 60 to indicate an angle adjusted state of the 5 body 10, namely, the light source 20. As shown in FIGS. 2 and 3, the body 10 includes a first mounting portion llA, second mounting portions 11B, first and second fastening portions 13A and 13B, and a heat dissipating portion 15 having a plurality of heat dissipation fins to 10 enlarge a heat dissipation area of a rear surface. Further, the second mounting portions 11B are provided on both sides of the body 10. A shock absorbing assembly 40 is disposed on each second mounting portion 11B to mitigate vibrations or shocks transmitted from the object through the 15 mounting means for fixing the lighting apparatus to the object (e.g. the vehicle) . Locking steps 17 are provided on front surfaces of the second mounting portions 11B to enable the convenient assembly of a second fixing member 50 for coupling the shock absorbing assembly 40 to the second mounting portion 20 11B of the body 10 and to specify a coupling position. A seating recess 17a is provided in a rear surface of the locking step 17 (see, the rear view of the body encircled with a dashed dotted line at an upper portion of FIG. 2) and engages with a seating protrusion 57 of the second fixing 25 member 50. 11 Meanwhile, the light source 20 accommodated in the body 10 does not comprise one simple light source device, particularly the LED, but comprises an LED 21, particularly a high luminance LED that has high availability and satisfaction 5 as specific night lighting. In order to satisfy a luminance condition, a PCB 21A on which a plurality of LEDs 21 is mounted is utilized. The PCB 21A is disposed on the first mounting portion of the body 10, and is preferably a light source assembly so that it may be fixedly mounted to a mounter 10 25. A power block 23 that may include a control chip such as an SMPS has on a rear surface thereof a socket 23a or a connector to which a power line is connected. After the power block 23 is connected to the PCB, it is fastened to the 15 mounter 25. A reflector 27 is coupled to every mounting recess 25b (the number of mounting recesses is four to correspond to the number of LEDs) of the mounter 25 to enhance the luminance and linearity of light. Such a mounter assembly, in other words, the light source 20 can be easily 20 assembled by inserting a fastening hook 25a of the mounter 25 into a fastening hole (not designated) of the body 10. In such a coupled state, the assembly is covered with a window 33. A locking flange 33A of the window 33 is restrained by a first fixing member 30. Bolts Ba are inserted 25 into four corner holes 31 of the first fixing member 30. Each 12 bolt is fastened to a first fastening portion 13A around the first mounting portion of the body 10, namely, an internal threaded portion. Various waterproofing means such as a packing ring may be provided between the window 33 and the 5 body 10 to ensure a waterproofing property. The mounting means 60 for fixing the body 10 to the object mainly includes a mounting bracket 61. This includes a connecting plate 61A, and fastening plates 61B connected to both ends of the connecting plate 61A in such a way as to be 10 bent. An insertion hole 61a is formed in the connecting plate 61A, so that a fastening means such as a mounting bolt is inserted into the insertion hole 61a to mount the lighting apparatus to the object (e.g. the vehicle). 15 A rotary hole 61b is formed in each fastening plate 61B to enable the angle adjustment of the body 10, namely, the light source 20. Particularly according to a specific relation between the height of the connecting plate 61A of the mounting bracket 61 and the height of the body 10, the light 20 source may be rotated at 360 degrees. Moreover, the mounting means 60 prevents the body or the second fixing member from being damaged by friction between the body or the second fixing member and the mounting-bracket fastening plate 61B, due to the mounting plate 63 disposed 25 between the fastening plate 61B of the mounting bracket and 13 the second fixing member 50 (such a configuration is excellent to prevent abrasion that may be more serious, if it is made of aluminum or aluminum alloy to achieve lightness). When the bolt Bc is tightened in order to hold the 5 adjusted state after the angle of the light source is adjusted by the angle adjusting means, the bolt is not prevented from being in direct contact with the body (or the second fixing member), so that a damage to the lighting apparatus can be prevented despite the repetitive angle adjustment. Further, 10 when the bolt is loosened to some extent to adjust the angle, a smooth angle adjustment is ensured. The above-mentioned protection characteristics, convenient angle adjustment, and smoothness can be further enhanced due to the end plate 65 disposed outside the 15 fastening plate 61B of the mounting bracket 61. The binding member and the shock absorbing member of the shock absorbing assembly 40, which will be described later, are fastened to a mounting plate 63 constituting the angle indicating means together with an angle indicating plate 63B, 20 via a bolt Bc. To this end, the end plate 65 has a hole 65a. An annular guide protrusion 65A is provided in the end plate 65, so that the guide protrusion is inserted into the rotary hole 61b of the fastening plate of the mounting bracket. Hence, although the body 10 is not directly axially 25 coupled to the center of the rotary hole 61b, the body can 14 smoothly rotate about the center of the rotary hole. Even when the lighting apparatus is heavier than general lighting equipment to ensure high luminance, a load generated by the rotation of the body, including a centrifugal force, is 5 dispersed by the annular guide protrusion 65A of the end plate having a larger outer diameter (as compared to a fixing configuration using a single shaft pin), thus increasing the durability of the lighting apparatus. Moreover, the mounting plate 63 constituting the angle 10 indicating means has an annular groove 65A around the hole 63c, with notches 63a symmetrically formed on two opposite sides of the annular groove 63c. The angle indicating plate 63B is mounted to the annular groove 65A (projections 63b are fitted into the notches 63a to 15 ensure the coupling in a specific direction). The angle adjusted state of the body, namely, the light source can be observed through an angle observation hole 61c of the fastening plate of the mounting bracket (the angle observation hole has an edge to allow the angle to be more 20 precisely observed) . Such an adjusted angle can be seen in the photograph of FIG. 1B corresponding to the side view. Meanwhile, the shock absorbing assembly 40 not only performs its original function but also protects the angle adjusting means from vibrations (the angle adjusted state can 25 be maintained even under vibrations or shocks). 15 The shock absorbing member of the shock absorbing assembly serves to prevent the bolt from being loosened from the internal threaded portion due to its inherent elasticity, as if a spring washer were applied between the bolt and the 5 nut. Moreover, the lighting apparatus ensures good coupling ability and assemblability for the binding member, the shock absorbing member, and the second fixing member of the shock absorbing assembly, and further includes the end plate on the 10 mounting means for fixing the body of the lighting apparatus to the object (e.g. a vehicle), and besides, the fastening plate of the mounting bracket constituting the mounting means for fixing the body to the object is interposed between the mounting plate constituting the angle indicating means and the 15 end plate to considerably increase a coupling ability, thus allowing the irradiation angle of the light source to be easily and conveniently adjusted depending on various driving conditions, ensuring the stability of the angle adjusted state, and enabling the lighting apparatus to be rotated even 20 at 360 degrees and thereby adapting to a site situation and reliably satisfying needs of consumers. To be more specific, the end plate 65 is stably coupled to the rotary hole 61b formed in the fastening plate 61B of the mounting bracket 61 via the annular guide protrusion 65A. 25 After the bolt Bc inserted into the hole 65a of the end plate 16 sequentially passes through the hole 63c of the mounting plate 63 and the hole 43a of the shock absorbing member 43, the bolt is fastened to a binding portion 41a of the binding member 41 of the shock absorbing assembly 40, namely, a threaded hole. 5 Further, the shock absorbing assembly 40 is stably coupled to the second mounting portion 11B of the body 10 via the second fixing member 50. In the state where the mounting bracket 61 of the mounting means 60 is fixed to the object, the outward rotation 10 of the body 10, namely, the light source 20 leads to the rotation of the mounting plate 63 of the angle indicating means. The angle indicating plate 63B mounted to the annular groove 63A of the mounting plate is rotated (idle rotation is 15 prevented by the engagement of the notch 63a with the projection 63b). A change in angle can be observed by the gradation of the angle indicating plate 63B via the angle observation hole 61c of the fastening plate 61B of the mounting bracket. This is 20 shown in the photograph of FIG. 1B corresponding to the side view. As seen in FIG. 1C showing the rotation of the body, the body 10, namely, the light source 20 can be rotates at 360 degrees according to the relation between the height of the 25 connecting plate 61A of the mounting bracket 61 and the height 17 of the body. To be more specific, a height hl from the upper surface of the connecting plate 61A of the mounting bracket 61 to the center line of the rotary hole 61b of the fastening plate 61B 5 is higher than half of the maximum height of the body 10, namely, a height h2 from a center of a line (it corresponds to an imaginary rotary axis of the body and is identical with the center line of the rotary hole 61b when the body is coupled to the mounting bracket) to a lower end, the line connecting the 10 holes 43a or binding portions 41a of the shock absorbing member 43 or binding member 41 of the shock absorbing assembly 40 that is coupled to the first mounting portion llA of the body. Such a configuration allows the light source (namely, the body) to be rotated at 360 degrees. Upper and lower 15 portions encircled with dashed dotted lines on the left side of FIG. 1C show that the body rotates at 180 degrees. Next, the shock absorbing assembly will be described in detail. That is, the shock absorbing assembly 40 disposed on each 20 of the second mounting portions 11B provided on both sides of the body 10 includes the binding member 41 and the shock absorbing member 43. For the angle adjusting properties of the lighting apparatus, it is preferable that the body 10, the mounting 25 means 60 and the mounting plate 63 on which the angle 18 indicating plate 63B is disposed be assembled in a specific direction. The binding member 41, which is a metal member (aluminum or aluminum alloy is preferred to ensure lightness) that 5 provides the internal threaded portion and is manufactured by die casting, is provided with two binding portions 41a, particularly internal threaded holes. The location and number of the binding portions are determined to conform to the hole 43a of the shock absorbing member 43, the hole 63c of the 10 mounting plate 63 and the hole 65a of the end plate. The first flange 41B of the binding member 41 has a non circular shape, particularly a hexagonal shape, and is coupled to a hexagonal recess of the second mounting portion 11B of the body. 15 An exposed face 41A also protrudes from the first flange to be integrated therewith, and has a non-circular shape, particularly a hexagonal shape. A female or male first direction specifying member 41b (especially, this is a male member, namely, a protrusion) is provided on the hexagonal 20 exposed face to couple the binding member to the shock absorbing member 43 in a specific coupling direction. In order to correspond to the female or male first direction specifying member 41b, the shock absorbing member 43 has a male or female second direction specifying member 25 (especially, this is a female member, namely, a groove). 19 Next, as shown in FIG. 3, the shock absorbing member 43 of the shock absorbing assembly interposed between the binding member and the second fixing member 50 is provided with first and second receiving portions 43C and 43D that correspond to 5 the exposed face 41A and the first flange 41B of the binding member, respectively, to receive the binding member 41 therein. Further, the shock absorbing member 43 is provided with a non-circular, particularly hexagonal second flange 43B. An 10 insert portion 43A is provided in the second flange. The insert portion also has a non-circular, particularly hexagonal shape to ensure a coupling in a specific direction. The insert portion is provided with two holes 43a. A second direction specifying member is provided in the center of the 15 insert portion in such a way as to be within an area of the first receiving portion 43C, and is coupled to the first direction specifying member 41b. The second fixing member 50 is assembled with the body 10 by fastening a hole 59 to the second fastening portion 13B 20 around the second mounting portion 11B of the body 10, particularly the internal threaded portion, via the bolt Bb. In order to impart unity with the heat dissipating portion 15 in function, a heat dissipating portion 55 is provided on the rear surface of the second fixing member 50. 25 The second fixing member 50 also has a seating protrusion 20 57 that engages with the seating recess 17a formed on the rear surface of the locking step 17 of the body to ensure convenient assembly, a stable assembled state, and direction specificity. 5 Further, an exposure hole 51 is formed in a central portion of the second fixing member, so that the insert portion 43A of the shock absorbing member is coupled to the exposure hole 51 in such a way as to be exposed to the outside. 10 Moreover, as shown in FIG. 3, a removal prevention step 53A is provided along an inner circumference of the exposure hole 51, so that the second flange 43B of the shock absorbing member 43 is caught by the removal prevention step. The first flange 41B of the binding member 41 coupled to 15 the second receiving portion situated on a surface of the second flange 43B is also caught by the removal prevention step, thus ensuring the stable assembly. Further, since the holes of the insert portion 43A of the shock absorbing member 43 are exposed through the exposure 20 hole 51 of the second fixing member 50, and the binding portions 41a of the binding member 41, that is, the two internal threaded holes are exposed, the second fixing member 50 is fastened to the holes 63c of the mounting plate 63 and the holes 65a of the end plate, via the bolts Bc. 25 Furthermore, the fastening plate 61B of the mounting 21 bracket 61 constituting the mounting means 60 is interposed between the mounting plate 63 and the end plate 65. Consequently, all of the body, the shock absorbing assembly, and the mounting means are conveniently and stably 5 coupled with each other. In the foregoing description, the specification of the LED, luminance characteristics, the size and weight of the body, and specific materials of respective components as well as prior art known to those skilled in the art are omitted. 10 However, those skilled in the art can easily infer and carry out them. Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, 15 additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. 22