JPH09159451A - Laser apparatus for marking - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a laser apparatus by which an arbitrary projection line can be projected and by which a marking operation can be performed easily and quickly by a method wherein it is not required to move the laser apparatus which is set once and a lens system can be changed or replaced. SOLUTION: An apparatus is constituted in such a way that it is provided with a laser apparatus body 6 comprising a laser oscillator 14 radiating a laser beam A and with an optical system 7 which is arranged in the passage route of the laser beam A and that a marking operation is performed by the laser beam A via an optical system 18. The optical system 7 is composed of optical head units 26a, 26b, 26c which can be coupled to a plurality of stages so as to be freely detachable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blackout laser device mainly used for architectural blackout work by projecting a laser beam onto, for example, an indoor wall or ceiling.

[0002]

2. Description of the Related Art Conventionally, this type of ink-marking laser device is
There is a laser apparatus having a laser device main body having a laser oscillator for irradiating a laser beam, and an optical system disposed in a passage of the laser beam, and performing blackout with the laser beam passing through the optical system.

[0003]

However, in the above-described conventional ink-marking laser device, since a predetermined lens system is attached to the laser device main body, only a specific projection line can be projected on a wall surface or a ceiling. Did not. For this reason,
It is necessary to bring multiple types of laser devices that can project different types of projection lines and spots to the site at all times, which is extremely troublesome, and the entire device must be replaced every time the blackout work is changed. In particular, in the case of a large-sized apparatus, the blacking-out operation is complicated and time-consuming.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and does not require moving a laser device which has been once set. An object of the present invention is to provide a blackout laser device that can project a line and can easily and quickly perform a blackout operation.

[0005]

The technical measures taken by the present invention to solve the above problems include a laser device main body 6 having a laser oscillator 14 for irradiating a laser beam A;
An optical system 7 disposed in the passage of the laser beam A, wherein the laser system A is adapted to perform the indexing with the laser beam A passing through the optical system 18; the optical system 7 is detachably connected to a plurality of stages; Possible optical head unit
26a, 26b, 26c.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. 1, 2 and 4 show an embodiment of the present invention. In FIG. 4, reference numeral 1 denotes a blackout laser device according to the present invention, and the blackout laser device 1 has a cylindrical shape on a leg 3. Windshield 5 is fixed in the vertical direction.

[0007] A laser device main body 6 is built in the windshield 5, and an optical system 7 is provided above the laser device main body 6. Reference numeral 9 denotes a cover body for covering the optical system 7, which is detachably provided on the windshield 5. The laser device body 6 is set in a vertical state by a gyro mechanism (not shown).

As shown in FIG. 2, the laser device main body 6 includes an upper cylindrical body 10, an intermediate cylindrical body 11 which is detachably screwed into a lower portion of the upper cylindrical body 10, and an intermediate cylinder 11 which is detachably attached to the lower cylindrical body 11. And a lower tubular body 12 that is freely screwed.

Reference numeral 14 denotes a semiconductor upper laser oscillator which irradiates a red laser beam vertically upward, for example, and is mounted on the upper laser oscillator.
The laser oscillator 14 is fixed to the mount 15 by a nut 16.

Reference numeral 18 denotes a holding cylinder for holding the upper laser oscillator 14 together with the mount 15. The holding cylinder 18 is inserted into the upper cylinder 10 and screwed to the upper cylinder 10. By moving the adjusting bolts 20 back and forth, the holding cylinder 18 is moved in the radial direction, so that the optical axis of the laser beam A emitted from the upper laser oscillator 14 can be adjusted. The lower part of the holding cylinder 18 is set longer than the lower part of the upper cylinder 10, so that the work of inserting and removing the holding cylinder 18 from the upper cylinder 10 and adjusting the position thereof can be easily performed. Has become.

Reference numeral 22 denotes a lower laser oscillator for semiconductor which emits the same red laser beam B downward as described above. The lower laser oscillator is fitted in a mount 23, and the mount 23 is inserted into the lower cylinder 12, and A plurality of adjustment bolts 25 screwed to the body 12 allow the lower laser oscillator 22 to be mounted together with the mount 23.
Can be adjusted in the radial direction of the lower cylindrical body 12. Therefore, the laser beam A of the upper laser oscillator 14 and the laser beam B of the lower laser oscillator 22 are coaxial.

The optical system 7 comprises optical head units 26a, 26b, 26c which can be detachably connected to a single or a plurality of stages, and each optical head unit 26a, 26b, 26c is half as shown in FIG. Mirror bases 28, 35, 48 and lens mounts 33, 46, 52 are provided.

The first half mirror base 28 of the lowermost first optical head unit 26a has a fitting portion 28a which is fitted to the upper cylindrical body 10 so as to be relatively rotatable and fixed at a predetermined rotational position by screws 27. On the upper surface of the first half mirror base 28, an inclined surface 28b inclined at 45 ° with respect to the laser beam A emitted from the upper laser oscillator 14 is formed.

Reference numeral 30 denotes a first half mirror for splitting the laser beam A into a vertical direction and a horizontal direction.
b. In addition, 31a is a vertical hole in the vertical direction for passing the laser beam, and 31b is a horizontal hole in the horizontal direction, which are formed on the first half mirror base 28, respectively.

The lens mount 33 has a cylindrical shape, and has a large diameter portion 33a fitted and fixed to the first half mirror base 28.
And a small diameter portion 33b to which the fitting portion 35a of the second half mirror base 35 of the second optical head unit 26b in the middle stage is fitted and fixed.

A mounting plane 37 is formed on one side of the large diameter portion 33a of the lens mounting body 33 and on the side facing the horizontal hole 31b of the first half mirror base 28, and the mounting plane 37 has a circular shape. A fixing base 38 to which the columnar rod lens 40 is fixed is detachably attached by screws (not shown). Note that the rod lens 40 can be selectively selected from a horizontal direction, a vertical direction, and an oblique direction. 41 is the horizontal hole
A laser beam transmitting hole formed in the large diameter portion 33a corresponding to 31b.

The second half mirror base 35 of the second optical head unit 26b also has a vertical hole 42a and a horizontal hole 42b communicating with the vertical hole 34 of the mounting body 33, respectively.
The second half mirror 44 is fixed to a.

A third half mirror base 48 is detachably fitted and fixed to the small diameter portion 47 of the lens mount 46 fitted to the second half mirror base 35. Reference numeral 49 denotes a third half mirror 49 fixed to the inclined surface 48a of the third half mirror base 48, and reference numerals 50a and 50b denote vertical holes and horizontal holes for passing a laser beam.

The lens mounting body 52 fitted and fixed to the third half mirror base 48 has a large diameter portion, and has holes 54a and 54b for passing a laser beam. The second
Also, in the lens attachment bodies 46 and 52 of the third optical head units 26b and 26a, the cylindrical rod lenses 40 can be attached to the respective attachment planes 37, respectively.

Numeral 55 denotes a collimator formed of a lens, and an upper cylindrical body is positioned above the upper laser oscillator 14.
Fixed to 10 side.

The first embodiment of the present invention has the above-described configuration. Next, the case where the laser device 1 is used will be described.

In the optical system 7 shown in FIGS. 3 and 4, first, when the first optical head unit 26a is used alone as shown in FIG.
The laser beam B irradiated vertically downward from above is projected on the floor surface 60 as a spot 59 as ground ink, and the laser device 1 for blackout is positioned.

On the other hand, the laser beam A emitted upward from the upper laser oscillator 14 passes through the collimator 55, is corrected to a predetermined parallel line, and enters the first half mirror 30.
Half of the laser beam A is reflected by the first half mirror 30 and is incident on the horizontal rod lens 40a.
Are projected in the circumferential direction, and a straight projection line 42 is projected over the ceiling 61, the one side wall surface 62, and the floor surface 60 shown in FIG. The laser beam A passing through the first half mirror 30 is projected as a spot 64 on the ceiling 61.

Therefore, a mark is made on the projection line 42 and the spot 64, whereby the ceiling 61, the one side wall surface 62 and the floor surface
60 can be sumied appropriately. By rotating the first optical head unit 26a with respect to the laser device main body 6, the projection line 42 is shifted to the orthogonal wall 68 orthogonal to the one side wall surface 62.
Alternatively, it can be projected on the other side wall 69 facing the same.

Next, as shown in FIG.
The second optical head unit 26b including only the half mirror 44
In the case of the optical system 7 which is connected to the first optical head unit 26a, the laser beam reflected by the second half mirror 44 as shown in FIG.
2. The spot 65 can be projected on the orthogonal wall 68 or the other side wall 69.

Further, the optical system 7 shown in FIG.
The rod lens 40a of the optical head unit 26a is made vertical, and the rod lens of the second optical head unit 26b is
40b is leveled. In such a case, the horizontal projection line 66 is formed by the vertical rod lens 40a on one side wall surface 6.
2. The projection line 42 can be projected on the orthogonal wall 68 and the other side wall 69, and the horizontal rod lens 40b can project the projection line 42.

FIGS. 5 and 6 show another optical system 7, and FIGS.
The optical system 7 shown in (a) includes a first optical head unit 26a.
Rod lens 40a is horizontal, and the rod lens 40b of the second optical head unit 26b is
And an angle of 90 ° and are arranged horizontally. Therefore, as shown in FIG. 6, the angle α between the two projection lines 42 and 42a is a right angle (90 °), which is optimal for marking out large amounts of gold.

The optical system 7 shown in FIG. 5 (b) further includes a rod lens 40 of the first optical head unit 26a.
and a third optical head unit 26c having a horizontal rod lens 40c at a position 180.degree. Therefore, in addition to the projection lines 42 and 42a, it is possible to project the projection line 42b at a position (the ceiling 61, the other side wall 69, and the floor surface 60) that is 180 ° from the one projection line 42.

In the optical system 7 shown in FIG. 5C, the rod lens 40b of the second optical head unit 26b is arranged vertically so that a horizontal projection line 66 can be projected.

7 and 8 show still another optical system 7,
The optical system 7 shown in FIG. 7A is a first optical head unit.
26a and a second optical head unit 26
b and the rod lens 40b are opposite to each other, and
Each is provided horizontally. Moreover, these rod lenses 40a,
A rod lens 40d is provided in a direction orthogonal to 40b.

Therefore, in such a case, the projection line 42 is projected over the ceiling 61, the one side wall surface 62 and the floor surface 60 by the horizontal rod lens 40a as shown in FIG. Further, the projection line 42b is projected over the ceiling 61, the other side wall surface 69, and the floor surface 60 by the horizontal rod lens 40b. In addition, the projection line 42c orthogonal to the projection lines 42 and 42b is projected by the rod lens 40d.

The optical system 7 shown in FIG.
The rod lens 40a of the optical head unit 26a is arranged in the vertical direction. Therefore, as shown in FIG. 8, it is possible to project a horizontal projection line 66 in addition to the projection lines 42, 42b and 42c. Becomes The optical system 7 shown in FIGS. 7 and 8 is not projected as a spot on the ceiling 61.

In the present embodiment, since the optical system 7 in which the optical head units are arbitrarily combined as described above is detachably provided in the laser device main body 6, the respective optical head units are combined in advance. A plurality of types of optical systems 7 are prepared, and necessary lens systems 7
Can be selected and mounted on the laser device main body 6. Further, it is also possible to prepare a plurality of optical head units and combine the necessary optical head units on site to form the lens system 7, and the replacement or change of these lens systems 7 can be performed. Although it can be performed with the laser device set in a predetermined position,
When the apparatus is small, the operation can be performed while holding the apparatus, and it is possible to simplify and speed up the blackout operation.

Moreover, since the rotation of the optical system 7 can be adjusted with respect to the laser device main body 6, by appropriately rotating the entire optical system 7, the projection line is not limited to one side, and the orthogonal lines and other side walls can be formed. Can be projected to any location.

The laser device main body 6 includes the upper cylinder 1
Since the middle cylinder 11 and the lower cylinder 12 are each detachable, maintenance such as replacement of the upper and lower laser oscillators 14 and 22 becomes easy. Moreover, the collimator 55 is held by the upper cylinder 10 and the upper laser oscillator 14 is held by the holding cylinder.
Since it is held at 18, adjustment such as making the optical axis of the upper laser oscillator 14 coincide with the optical axis of the lower laser oscillator 22 can be performed independently of the collimator 55, and the adjustment work is easy. Can be done.

The present invention is not limited to the above embodiment, and each optical head unit may have four or more stages, and other constituent members are not limited to this embodiment.

[0037]

As described above, according to the present invention, since the optical system comprises an optical head unit which can be detachably connected to a plurality of stages, an optical head unit capable of projecting a desired projection line or spot is appropriately selected. Can be combined with
It becomes possible to project multiple types of projection lines, and the time and effort of exchanging the entire device each time the setup process for marking out is changed,
There is no need to bring a plurality of types of laser devices to the site, and it is possible to simplify and speed up the blackout operation.

Further, when the optical system is provided rotatably with respect to the laser device main body, there is an advantage that a predetermined projection line can be projected in an arbitrary direction at an angle of 360 °.

Further, when the optical system is provided detachably with respect to the laser device main body, a plurality of types of lens systems in which necessary optical head units are combined are prepared, and the necessary lens systems are appropriately provided. Has the advantage that it can be easily replaced on site.

Further, the laser device main body is provided with a cylindrical body for holding a collimator positioned in a passage of a laser beam, and the laser oscillator is provided in the cylindrical body so as to be adjustable in a radial direction of the cylindrical body. In this case, the position of the optical axis of the laser oscillator can be adjusted independently of the collimator, and the adjustment operation can be performed easily and quickly.

[Brief description of the drawings]

FIG. 1 is a sectional front view of a lens system showing an embodiment of the present invention.

FIG. 2 is a sectional front view of the laser device main body.

FIGS. 3A to 3C are front views each showing an optical system.

FIG. 4 is a perspective view showing an example of use of a laser device for marking out.

FIGS. 5A to 5C are front views each showing an optical system.

FIG. 6 is a perspective view showing an example of use of a laser device for marking out.

FIGS. 7A and 7B are front views showing an optical system, respectively.

FIG. 8 is a perspective view showing an example of use of a laser device for marking out.

[Explanation of symbols]

1 optical bench, 6 laser body, 7 optical system, 12
Laser oscillator, 18 optical system, 26a, 26b, 26c optical head unit, A, B laser light

Claims (4)

[Claims] 1. A laser device main body (6) having a laser oscillator (14) for irradiating a laser beam (A), and an optical system (7) arranged in a passage of the laser beam (A). In the laser device for marking out, which is designed to be marked by the laser beam (A) that has passed 18),
A laser device for marking out, wherein the optical system (7) is composed of optical head units (26a), (26b), (26c) which can be detachably connected in a plurality of stages. 2. The laser according to claim 1, wherein the optical system is rotatably provided with respect to the laser device main body. 3. The blackout laser device according to claim 1, wherein the optical system (7) is detachably provided to the laser device main body (6). 4. The laser device main body (6) includes a cylinder (10) for holding a collimator (55) positioned in a passage of the laser beam (A). 4. The laser device according to claim 1, wherein the laser oscillator (12) is provided so as to be adjustable in the radial direction of the cylinder (10).