JP2010114343A - Portable laser light vertical application device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable laser light vertical application device capable of simply, stably and vertically irradiating an optional object surface with laser light, excelling in accuracy of the application direction, being an assembly type, and efficiently manufacturable. <P>SOLUTION: The portable laser light vertical application device includes: an application guide means 1 manufactured by arranging a bearing 14 and a rotating tubular body 15 incorporated in the bearing 14 in a hollow part of a cylindrical member 12 including a diameter-increased end 11 to be pressed against an object surface, and including a guide hole 13 at the center part; and a laser emitter 2 connected to the rotating tubular body 15 of the application guide means 1 and capable of irradiating the object surface with the laser light through the guide hole 13 from an emission part 23 arranged nearly on the center axis of the guide hole 13, wherein the rotating tubular body 15 and the laser emitter 2 of the application guide means 1 are connected to each other by a joint mechanism J capable of changing and adjusting the connection angle. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention is an improvement of a portable laser beam irradiation device, more specifically, it can easily and stably vertically irradiate laser light to any target surface, has excellent irradiation direction accuracy, and is manufactured in an assembling manner. Further, the present invention relates to a portable laser beam vertical irradiation apparatus that can be efficiently performed.

  In recent years, high-performance solar furnaces capable of obtaining a large amount of heat by concentrating sunlight with a Fresnel lens have been developed, and a Fresnel lens used in such a solar furnace, as shown in FIG. The size can be further increased by dividing the lens into a plurality of parts.

  However, after assembling the Fresnel lens by attaching the divided lenses L, L,... To the frame F, if the position of the divided lens is not adjusted, the focal point of each lens and the focal point of the entire lens do not match exactly. It remains in a state and tends to cause a decrease in light collecting performance due to energy dispersion.

  Therefore, after assembling, it is necessary to adjust the position of the split lens firmly, but the adjustment work needs to be done while checking the location of the condensing point of each lens with the lens raised. A portable laser irradiation device is suitably used as a tool for confirming the position of the condensing point (for example, Patent Document 1).

  However, in order to accurately grasp the position of the condensing point, it is necessary to irradiate the laser light vertically to all the divided lenses, whereas in the conventional laser irradiation apparatus, the laser light is held in the hand. It was difficult to stably irradiate vertically without blurring, and it was difficult to detect the position of the condensing point of each lens with high accuracy.

  In view of this, the present inventor has devised a technique of providing a pressing portion having an enlarged diameter at the tip of the irradiation device so that the laser beam can be irradiated in a stable state perpendicular to the target surface. If the contact part and the apparatus main body are produced as separate members, a slight error will occur in the connection angle between them when they are connected, and the flange surface formed at the connection end of the apparatus main body will be in the laser beam emission direction. On the other hand, there are many cases in which the laser beam irradiation direction is misaligned, for example, it is not exactly perpendicular.

Moreover, it is almost impossible to recognize such a deviation in the irradiation direction during use, and even if it can be recognized, it is very difficult to correct the deviation. This is one of the factors that hinder high-precision adjustment in the position adjustment operation of the split lens that needs to be accurately matched with the focal point.
JP-A-6-326380 (page 1-5, Fig. 1-3)

  The present invention has been made in view of the problems as described above, and the object of the present invention is to easily and stably vertically irradiate a laser beam on an arbitrary target surface, with high accuracy in the irradiation direction. It is another object of the present invention to provide a portable laser beam vertical irradiation device that is excellent in assembly and can be manufactured efficiently.

  Means employed by the present inventor for solving the above-described problems will be described with reference to the accompanying drawings.

That is, the present invention is a portable laser beam vertical irradiation apparatus capable of irradiating a laser beam in a direction perpendicular to a target surface,
The hollow part of the cylindrical member 12 provided with the enlarged diameter end part 11 for pressing against the target surface is provided with a bearing 14 and a rotating cylinder 15 housed in the bearing 14, and is formed in the center part. Is an irradiation guide tool 1 provided with a guide hole 13; connected to the rotating cylinder 15 of the irradiation guide tool 1, and the target surface through the guide hole 13 from the emitting part 23 arranged on the substantially central axis of the guide hole 13. While including a laser emitter 2 capable of irradiating a laser beam,
The rotary cylinder 15 of the irradiation guide 1 and the laser emitter 2 are connected by a joint mechanism J that can change and adjust the connection angle.
When the irradiation guide tool 1 is pressed against the translucent plate X and irradiated with laser light, the light spot P appearing on the projection surface Y arranged on the back side is maintained at a fixed position even if the rotating cylinder 15 is rotated. In addition, the laser beam irradiation direction can be adjusted vertically by adjusting the connection angle of the laser emitter 2 by the joint mechanism J.

  Further, according to the present invention, a joint mechanism J for connecting the irradiation guide tool 1 and the laser emitter 2 is provided to the laser emitter 2 on the rotary cylinder 15 and the laser emitter 2 of the irradiation guide tool 1. A pair of flange ends; and at least three connecting screws 3, 3... Attached to the female screw holes at the flange ends of the rotary cylinder 15 through the insertion holes at the flange ends of the laser emitter 2; .. Are formed in the female screw hole at the flange end portion of the emitter 2 adjacent to the connecting screws 3, 3..., And each pressing is performed according to the loosening operation of each connecting screw 3. It is possible to adopt a technical means that enables the connection angle to be changed and adjusted by screwing the screws 4 and tightening the flange ends.

  Further, according to the present invention, a joint mechanism J for connecting the irradiation guide tool 1 and the laser emitter 2 is provided to the laser emitter 2 on the rotary cylinder 15 and the laser emitter 2 of the irradiation guide tool 1. A pair of flange ends; and at least three connecting screws 3, 3... Attached to the female screw holes at the flange ends of the rotating cylinder 15 through the insertion holes at the flange ends of the laser emitter 2; The compression springs 5, 5 ... are mounted on the screws 3, 3 ... and sandwiched between the flange ends, and each of the flange ends is maintained in a tightened state by the restoring force of the stored compression spring 5. It is possible to adopt a technical means that allows the connection angle to be changed and adjusted by loosening the connecting screw 3.

  In addition, the present invention can employ technical means for forming a stepped edge portion on at least one of the connection surfaces of the rotating cylinder 15 of the irradiation guide 1 and the flange end of the laser emitter 2. .

  In the present invention, the irradiation guide device having the expanded pressing portion is connected to the laser emitter so that the irradiation guide device is stabilized in the direction perpendicular to the target surface simply by pressing the irradiation guide device against the target surface. Therefore, if the apparatus of the present invention is used, it is possible to easily adjust the position of each lens of the split Fresnel lens.

  In addition, a laser emitter is connected to the rotating cylinder provided in the irradiation guide tool to make it rotatable, and a joint mechanism that can adjust the connection angle at the connection portion between the irradiation guide tool and the laser emitter is used. Once the laser beam is irradiated with the irradiation guide tool pressed against the transparent plate once before, the light spot appearing on the projection plate placed on the back side moves by the rotation of the laser emitter. If the connection angle is adjusted so as not to move at a fixed position, the irradiation direction of the laser light can be corrected vertically, so that the deviation of the connection angle can be eliminated and the accuracy of the irradiation direction can be improved.

  On the other hand, since the irradiation guide tool and the laser emitter can be manufactured as separate members by adopting the assembly-type structure, the manufacturing efficiency can be improved.

  Therefore, according to the present invention, a laser beam vertical irradiation apparatus that is very convenient for work that needs to vertically irradiate laser light onto an arbitrary target surface such as a split lens, and that can sufficiently cope even when direction accuracy is required. Therefore, the practical utility value of the present invention is very high.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described in more detail with reference to the drawings specifically shown as follows.

Example 1
Embodiment 1 of the present invention is shown in FIGS. In the figure, what is indicated by reference numeral 1 is an irradiation guide, and what is indicated by reference numeral 2 is a laser emitter. Also, what is indicated by reference numeral 3 is a connecting screw, and what is indicated by reference numeral 4 is a push screw.

  Next, the configuration of the first embodiment will be described below. First, in the first embodiment, the enlarged diameter end portion 11 to be pressed against the target surface is provided at one end of the cylindrical member 12, and the laser emitting device 2 is connected to the irradiation guide device 1 having the guide hole 13 in the central portion. (See FIGS. 1 and 2).

  More specifically, when a ring-shaped fixed rubber material 11a is attached to the pressing surface side of the enlarged diameter end portion 11 of the irradiation guide tool 1, the target surface is an upright surface. However, the enlarged diameter end portion 11 can be stably fixed by a frictional force, and damage to the target surface when the enlarged diameter end portion 11 is pressed can be prevented by the buffering action of the fixed rubber material 11a ( (See FIG. 3).

  Further, in the hollow portion of the cylindrical member 12 in which the enlarged diameter end portion 11 in the irradiation guide tool 1 is formed, a bearing 14 and a rotating cylinder 15 provided therein are provided, and the laser emitter 2 is connected to the rotating cylinder 15. And can be rotated freely.

  In Example 1, after fixing a pair of bearings 14 and 14 to both ends of the hollow portion of the cylindrical member 12 of the irradiation guide 1, the rotating cylinder 15 is inserted into the bearings 14 and 14 from the connecting side, and the pressing surface A snap ring 16 is attached to the groove of the barrel of the rotating cylinder 15 protruding to the side, and the rotating cylinder 15 is attached to the bearings 14 and 14.

  Further, the cylindrical member 12 of the irradiation guide 1 is provided with a through hole by cutting a female screw in the body portion, and a clamp lever 17 is attached to the through hole, and the internal rotating cylinder 15 is attached by the attached clamp lever 17. It can be fixed by tightening.

  On the other hand, the laser emitter 2 has a structure in which a small laser pointer 21 is fixed to the mounting portion 22a of the holder member 22, so that the laser pointer 21 can be removed and repaired easily even when a failure occurs.

  In the first embodiment, the bolt member is inserted into the female screw hole penetrating the holder member 22 so that the switch portion 21a of the laser pointer 21 can be pressed. Can also be easily performed (see FIG. 4).

  As for the connection structure of the irradiation guide 1 and the laser emitter 2, a pair of flange ends 15a and 24 are provided on the rotating cylinder 15 of the irradiation guide 1 and the holder member 22 of the laser emitter 2, and the laser The connecting screws 3, 3... Are attached to the female screw holes of the flange end 15 a of the rotating cylinder 15 through the insertion holes at the flange end of the emitter 2, and the laser beam is emitted substantially on the central axis of the guide hole 13. Both are connected at the position where the portion 23 is arranged.

  .. Are disposed adjacent to the connecting screws 3... At the flange end 24 of the laser emitter 2, and the connecting screws 3 are loosened from the state shown in FIG. Then, after the state shown in FIG. 5 (b), the gap between the flange ends can be enlarged by screwing and tightening adjacent push screws as shown in FIG. 5 (c). It becomes possible to arbitrarily adjust the connection angle between the tool 1 and the laser emitter 2 (see FIG. 5).

  Incidentally, if the gap between the irradiation guide 1 and the flange end of the laser emitter 2 is excessively widened when adjusting the connection angle, the reverse operation of loosening the push screw 4 and tightening with the connecting screw 3 is performed. Thus, the gap between the flange end portions can be narrowed and returned to the original state.

  Further, in the first embodiment, since the step edge portion 24a is formed on the connection surface side of the flange end portion 24 of the laser emitter 2, the gap is generated between the flange end portions as shown in FIG. The flange end portion 24 can be tilted more greatly by a rotational operation with a small number of screws 3.

  The step edge provided at the flange end 24 of the laser emitter 2 may be provided on the connecting surface of the flange end 15a of the rotary cylinder 15 of the irradiation guide 1, or both flange ends 15a. -It may be provided on 24 opposing surfaces.

  Since the connection angle can be adjusted as described above, when the irradiation direction of the laser beam is deviated when the irradiation direction of the laser beam is checked in the preparation stage before use, the connection angle of the laser emitter 2 is determined. Can be adjusted so that the irradiation direction is perpendicular to the target surface.

  Next, a method for correcting the irradiation direction will be described in more detail with reference to FIGS. First, the transparent plate X is arranged at a position separated from the projection surface Y by a predetermined distance, and the irradiation guide tool 1 is pressed against the arranged transparent plate X as shown in FIG.

  Next, when the laser emitter 2 is rotated in this state, if the direction of laser light irradiation is appropriately perpendicular to the transparent plate X, the projection surface Y as shown in FIG. However, if the irradiation direction is deviated from the vertical, the irradiation direction of the laser beam is continuously changed by the rotation of the laser emitter 2 as shown in FIG. Therefore, as shown in FIG. 8B, the light spot P moves on the projection surface Y so as to draw a circle.

  When the deviation in the irradiation direction can be confirmed, the connection angle of the laser emitter 2 is adjusted by the operation of the connecting screws 3, 3,. Repeat the adjustment until P no longer moves.

  At this time, if the projection surface Y and the translucent plate X are arranged in parallel, the center point of the circular orbit is at an appropriate position, so that the adjustment can be easily performed with the amount of division. Even if the light spot P is disposed in a tilted state, the light spot P moves in a circular shape, and there is no major problem in confirming the deviation.

  In the first embodiment, the connection screws 3 ···· and the push screws 4 · 4 ··· are equally spaced from the irradiation guide 1, the rotary cylinder 15, and the flange end portions 15 a and 24 of the laser emitter 2. The connection angle of the laser emitter 2 can be adjusted accurately and efficiently by arranging three portions and adjusting the orientation of the plane determined by the three screws.

  Thus, by adjusting the connection angle until the light spot P stops moving, the irradiation direction of the laser light is corrected to be perpendicular to the translucent plate X, and in this state, the device of the present invention is used for any target surface. Then, the laser beam can be vertically irradiated with high accuracy.

  When correcting the irradiation direction of the laser beam, if the distance between the light transmitting plate X and the projection plate Y is too close, the rotation radius of the light spot P becomes small and the movement of the light spot P cannot be visually recognized. As a result, there is a possibility that the required accuracy may not be obtained. Therefore, it is desirable to dispose the projection surface Y and the translucent plate X as far apart as possible.

  Further, as shown in FIG. 9, by using the apparatus of the present invention in which the irradiation direction of the laser beam is corrected, it is easy to confirm the positions of the condensing points of the divided lenses L, L,. Therefore, it is possible to adjust the position of each of the divided lenses L, L, etc. three-dimensionally so that the focal point coincides with the focal point, thereby improving the light collecting performance of the divided Fresnel lens. Can do.

  In addition, the irradiation guide tool 1 and the holder member 23 of the laser emitter 2 of the apparatus of the present invention are made by processing a metal material. However, the irradiation guide tool 1 and the laser emitter 2 can be processed separately. Since it becomes easy and can be manufactured efficiently, it is very convenient in terms of manufacturing.

“Example 2”
Next, a second embodiment of the present invention will be described with reference to FIG. In the figure, the reference numeral 5 indicates a compression spring. In the second embodiment, in the joint mechanism J that connects the irradiation guide 1 and the laser emitter 2, the compression spring 5 is replaced with each connecting screw 3 as a tightening means when the connecting screw 3 is loosened.・ Attaching between the flange ends of 3... And restoring the compression spring 5 in a state of accumulation as shown in FIG. 10 (a) as shown in FIG. The tightened state can be maintained.

  Moreover, when the form of Example 2 is employ | adopted, the clearance gap formed by the step edge part of a flange end part is used as an accommodation space of compression springs 5 * 5 ..., and the stored power of compression spring 5 is adjusted. Can be used.

  The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the claims. For example, Of course, the joint mechanism J for connecting the irradiation guide 1 and the laser emitter 2 may adopt a joint structure other than the flange connection such as a ball joint as long as the connection angle can be adjusted.

  On the other hand, the shape of the enlarged diameter end portion 11 of the irradiation guide portion 1 is not limited to a disc shape as long as the pressing portion is expanded, and may be a funnel shape, and the number of connection screws 3 and push screws 4 provided. If the adjustment surface can be determined at three or more points, the connection angle can be adjusted accurately.

  Further, the technology according to the present invention can be applied to an experimental instrument or a laser marker for examining the reflection and refraction of light in addition to the position adjusting instrument for the split lens, and any of these techniques is within the technical scope of the present invention. Belongs.

  Recently, a solar furnace has been attracting attention as one of the environmentally friendly energy systems. When the system is enlarged in order to obtain a larger amount of heat, the position of each lens of the split Fresnel lens is concerned. It is important to make adjustments to reduce energy loss as much as possible.

  Under such circumstances, the portable laser beam vertical irradiation device of the present invention is a practical tool that can easily confirm the exact focal position of each lens when adjusting the position of the split Fresnel lens. Since it is a useful technology that can be applied to other fields using laser light, its industrial utility value is very high.

It is a whole perspective view showing the laser beam irradiation apparatus in Example 1 of this invention. It is explanatory sectional drawing showing the laser beam irradiation apparatus in Example 1 of this invention. It is a whole front view showing the irradiation guide tool in Example 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is decomposition | disassembly explanatory drawing showing the laser beam irradiation apparatus in Example 1 of this invention. It is a state explanatory view showing the joint mechanism in Example 1 of the present invention. It is a state explanatory view showing the joint mechanism in Example 1 of the present invention. It is a state explanatory drawing showing the use condition of the apparatus in Example 1 of this invention. It is a state explanatory drawing showing the use condition of the apparatus in Example 1 of this invention. It is a state explanatory drawing showing the use condition of the apparatus in Example 1 of this invention. It is a state explanatory drawing showing the joint mechanism in Example 2 of the present invention. It is a whole perspective view showing a split lens type large Fresnel lens.

Explanation of symbols

1 Irradiation guide tool
11 Expanded end
11a Fixed rubber material
12 Cylindrical member
13 Guide hole
14 Bearing
15 Rotating cylinder
15a Flange end
16 Snap ring
17 Clamp lever 2 Laser emitter
21 Laser pointer
21a Switch part
22 Holder material
22a Mounting part
23 Outgoing part
24 Flange end
24a Step edge 3 Connection screw 4 Push screw 5 Compression spring J Joint mechanism X Translucent plate Y Projection surface P Light spot L Split lens F Frame

Claims (4)

A portable laser beam vertical irradiation apparatus capable of irradiating a laser beam in a direction perpendicular to a target surface,
The hollow part of the cylindrical member 12 provided with the enlarged diameter end part 11 for pressing against the target surface is provided with a bearing 14 and a rotating cylinder 15 housed in the bearing 14, and is formed in the center part. Is an irradiation guide tool 1 provided with a guide hole 13; connected to the rotating cylinder 15 of the irradiation guide tool 1, and the target surface through the guide hole 13 from the emitting part 23 arranged on the substantially central axis of the guide hole 13. And a laser emitter 2 capable of irradiating laser light on
The rotating cylinder 15 of the irradiation guide 1 and the laser emitter 2 are connected by a joint mechanism J capable of changing and adjusting the connection angle.
When the irradiation guide tool 1 is pressed against the translucent plate X and irradiated with laser light, the light spot P appearing on the projection surface Y arranged on the back side is maintained at a fixed position even if the rotating cylinder 15 is rotated. In addition, by adjusting the connection angle of the laser emitter 2 by the joint mechanism J, the irradiation direction of the laser beam can be adjusted to be vertical, and the portable laser beam vertical irradiation device is characterized.   A joint mechanism J that connects the irradiation guide 1 and the laser emitter 2 includes a pair of flange end portions provided on the rotary cylinder 15 of the irradiation guide 1 and the laser emitter 2. ; At least three connecting screws 3, 3... Attached to the female screw hole at the flange end of the rotary cylinder 15 through the insertion hole at the flange end of the laser emitter 2; .. Are formed in the female screw hole of the portion adjacent to the connecting screws 3..., And the adjacent pressing screws 4 are screwed in according to the loosening operation of each connecting screw 3. The portable laser beam vertical irradiation apparatus according to claim 1, wherein the connection angle can be changed and adjusted by tightening the flange ends.   A joint mechanism J that connects the irradiation guide 1 and the laser emitter 2 includes a pair of flange end portions provided on the rotary cylinder 15 of the irradiation guide 1 and the laser emitter 2. ; At least three connecting screws 3 · 3 ··· attached to the female screw hole at the flange end of the rotary cylinder 15 through the insertion hole at the flange end of the laser emitter 2; Are composed of compression springs 5 which are mounted and sandwiched between flange ends, and each connecting screw 3 is loosened while maintaining the tightened state of the flange ends with the restoring force of the stored compression spring 5 The portable laser beam vertical irradiation apparatus according to claim 1, wherein the connection angle can be changed and adjusted.   The step edge part is formed in the connection surface side of at least any one of the flange end part of both the rotary cylinder 15 of the irradiation guide tool 1 and the laser emitter 2 or 3 characterized by the above-mentioned. Portable laser beam vertical irradiation device.