JP2000018946A - Reflector, laser irradiating device, and laser device for marking - Google Patents

Abstract

PROBLEM TO BE SOLVED: To successively provide the marking laser device which displays laser irradiation lines in all horizontal or perpendicular azimuths. SOLUTION: This reflection mirror M is constituted by forming a conic recessed part 4 which has a 90 deg. vertical angle and its peak part aligned with the center line 3 of a solid columnar body on one end surface of the solid columnar body made of a light-transmissive member and forming a reflecting film 5 on the internal surface of the conic recessed part, so that the border surface formed with the internal surface of the conic recessed part is a reflecting surface. This laser irradiating device L has a semiconductor laser light source 21, a condenser lens system 23, and the reflecting mirror M arranged and held in order on the center line of a holder 10 forming a hold chamber, which is sectioned circularly at right angles to the center line and reflects the laser light emitted by the semiconductor laser light in all azimuths crossing the center line at right angles for irradiation. The setting-out laser device L displays reference lines, which are successive horizontally and perpendicular in all the azimuth by irradiation by supporting the laser irradiating device L in a freely oscillatory state on a support frame which is equipped with a horizontal control means for controlling the horizontal adjustment according to a horizontal detecting means and utilizing the reflection mirror of the laser irradiating device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflector used for reflecting and emitting a laser beam in an optical system, a laser irradiation device using the reflector, and supporting the laser irradiation device horizontally and / or vertically. In addition, the present invention relates to a blackout laser device for irradiating a horizontal or vertical reference line when setting the ceiling or floor horizontally, or setting the layout or partition of a room.

[0002]

2. Description of the Related Art First, as a conventional technique of a reflecting mirror, there are a corner cube prism used in distance measurement and the like for reflecting an irradiated laser beam in parallel,
The center of the irradiated laser beam is aligned with the corner vertex of the cone and the laser beam is reflected to the periphery of the metal-deposited conical surface, and the height reference horizontal line is illuminated or the horizontality calculated from the received height of the illuminated light A so-called `` cone lens '' or a truncated cone lens having a truncated cone cone used to fine-tune the laser irradiation device to correct the deviation of the cone is well known. It is also used for laser devices for ink marking.

[0003] In addition, as a blackout laser device using a semiconductor laser as a light source, a laser irradiation device itself or a support supporting the laser irradiation device is gyroscopically swingable in a vertical plane in a plumb bob. Provide a rod lens on the optical axis of the laser beam to be irradiated and on the reflected optical axis or on the optical axis with the central axis horizontal and vertical, and directly or cover the light beam emitted through the rod lens to the vertical plane. Actually based on a configuration in which light is emitted from the slit for light emission of the body to the outside,
No. 943, JP-A-6-297350 or JP-A-9-250926 are known.

[0004]

However, like a cone lens or a truncated cone lens, a laser beam is made to coincide with the corner apex of the cone, and a metal-deposited cone surface is used as a reflection surface to reflect the laser beam around the cone. Is required to ensure high production accuracy and surface roughness, which significantly increases the production cost.Moreover, when metal deposition is performed, the accuracy of the deposited film thickness is not ensured. Unacceptable errors occur when irradiating the level line such as setting the floor, flattening the site, erecting columns and beams, and erection.

In a blackout laser device using a cone lens or a truncated cone lens, even if the processing accuracy is secured without performing metal deposition, which is a major factor of error,
Not only is there a problem in practicality, such as the reflection efficiency is reduced and the radiation distance of the light beam does not reach far, even if it reaches, the line becomes unclear and can not be the reference line,
Due to the structure, the center of the light beam from the light source such as a semiconductor laser and the center of the cone need to be aligned and confronted. For this reason, when the cone lens or the like is connected and held by the holding arm or the like, the holding arm is It does not radiate in all directions as a hindrance, that is, it does not irradiate continuous lines, and there is an error in the radiation direction due to the mounting accuracy of the cone lens on the holding arm. The quality in terms of surface cannot be ensured, resulting in low quality.

[0006] Further, the blackout laser device described in Japanese Utility Model Publication No. 4-22943 discloses a laser tube (a helium gas laser type 1 mmW rectilinear deflection type disposed in a cylindrical protective tube made of aluminum) which is automatically vertically gyroscopically mounted. The laser tube is installed in a windshield suspended from the head, and the windshield has a plurality of screw-type fixing devices for fixing the protection tube of the laser tube. Therefore, the laser tube can be prevented from being perturbed, but the operation is very troublesome because a plurality of fixtures must be rotated separately from the power supply connection.

Further, in the blackout device described in JP-A-6-297350, since the weight-supported support for supporting the laser irradiation device is in a free state, the device is transported to the site. When the laser irradiation device collides with the inner wall or the support of the cover during transportation, or when moving from place to place on the site, these may be damaged or the pivots may be damaged, and irradiation of the vertical or horizontal ink level line may be disrupted. There was an issue in the point.

According to the present invention, there is provided a reflecting mirror which can be formed by a simple means for forming a highly accurate reflecting conical surface, and using the reflecting mirror without interfering with a radiation obstacle around a central axis of a reflecting area of the reflecting mirror. A laser irradiation device capable of emitting a laser beam in all directions perpendicular to the axis, and a laser beam from the laser irradiation device is used as a laser irradiation line in a high-precision, accurate horizontal or vertical omnidirectional direction to a predetermined position such as an indoor peripheral wall. It is an object of the present invention to provide a low-cost laser device for inking, which can clearly and clearly display the centering, horizontal and vertical inking by one worker, accurately and quickly.

[0009]

SUMMARY OF THE INVENTION The present invention provides a reflector (M),
A laser irradiation device (L) and a laser device for marking out, wherein the reflecting mirror (M) is a solid columnar body (1) made of a translucent member.
A conical concave portion (4) is formed on one end surface of the solid conical concave portion (4) so that the vertex angle is 90 degrees and the vertex (2) is aligned with the center line (3) of the solid columnar body (1). A reflective film (5) is formed on the inner surface of (5) by vapor deposition means or the like, and a boundary surface between the reflective film (5) and the inner surface of the conical recess (4) is used as a reflective surface. Light rays incident from the end face are reflected in all directions orthogonal to the center line (3).

The laser irradiation apparatus (L) has a holder (10) in which a light source chamber (14) and an adjustment holding chamber (16) are sequentially formed on the center line (3) by making a cross section perpendicular to the center line into a circular hole. And light source room (14)
Holds the semiconductor laser light source (21) housed in the lens holder, the lens holding cylinder (22) holding the condenser lens system (23) and the reflecting mirror (M), which are housed and held in the adjustment holding hole (16). A mirror holding cylinder (24), and a semiconductor laser light source (21), a condenser lens system (23), and a reflecting mirror (M) housed and held in each chamber. Solid columnar body made of translucent member
A conical recess (4) is formed on one end face of (1) with a vertex angle of 90 degrees and the vertex (2) coincident with the center line (3) of the solid columnar body (1).
A reflective film (5) is formed on the inner surface of the conical recess (4) by vapor deposition means or the like, and a boundary surface between the reflective film (5) and the inner surface of the conical recess (4) is used as a reflective surface. The laser beam incident on the other end face through the line (3) is reflected and irradiated in all directions orthogonal to the center line (3).

Further, in the laser device for inking, the laser irradiation device (L) is swingably supported by a support frame provided with horizontal control means for controlling horizontal adjustment based on horizontal detection means, and is provided with a single axis or Adjustment plate (51) equipped with biaxial horizontal detection means, center line of laser irradiation device (L)
(3) and a horizontal or vertical reference line formed by the horizontal control means are made to coincide or parallel with each other, and are held without intervening radiation obstacles around the central axis (12) of the reflection area of the reflector (M). The entire structure is covered with a cover body with at least the reflecting mirror (M) projecting to the outside, and the cover body is fixed to the base, so that the laser beam from the laser irradiation device (L) can be accurately High accuracy and accurate horizontal and vertical reference lines as a reference line, clearly irradiate a predetermined position on the peripheral wall of the room, etc., to perform centering, horizontal and vertical ink marking accurately and quickly with one worker It is possible to obtain an optimum ink-marking laser device.

[0012]

The reflector (M) constructed as described above is formed on one end surface of a solid columnar body (1) made of a translucent member.
A metal reflecting member made of aluminum, zinc, or the like is deposited on the inner surface of a conical recess (4) whose apex angle is 90 degrees and whose apex (2) coincides with the center line (3) of the solid columnar body (1). To form a reflection film (5), and a boundary surface between the reflection film (5) and the inner surface of the conical recess (4) is used as a reflection surface. Regardless of the unevenness in the thickness of 5), the higher the inner surface accuracy of the conical concave portion (4), the higher the accuracy of the reflective surface (reflection intensity ratio is 25 to 80 (R _e = 0.05 to 0.8
μm)) can be easily formed, and equipment setting, goniometer, surveying meter,
In addition to providing a reflecting mirror (M) for use in measuring instruments, etc., a highly accurate reflecting surface can be easily formed,
The production cost can be reduced.

[0013] Even if a conical outer surface which is difficult to manufacture like a conventional cone lens is finished to a high precision of 0.8 μm or more at a cost, or if a metal is vapor-deposited on the conical outer surface, a high precision in vapor deposition thickness is obtained. It had happened because it could not be obtained,
The inconvenience that the linearity of the laser beam irradiation line cannot be ensured can be solved.

The laser irradiation device (L) has a center line (3)
A light source room (14), which is sequentially formed on the center line (3) as a circular hole with a cross section perpendicular to the circular hole, and a holder having an adjustment holding hole (16)
The semiconductor laser light source housed and held in the light source room (14) of (10)
(21), a lens holding cylinder (22) for holding the condenser lens system (23) and a reflecting mirror to be stored and held in the adjustment holding hole (16).
(M) and a mirror holding tube (24), and especially the configuration of the reflecting mirror (M) is a solid columnar body made of a translucent member.
A conical recess (4) is formed on one end face of (1) with a vertex angle of 90 degrees and the vertex (2) aligned with the center line (3) of the solid columnar body (1).
And a reflective film (5) is formed on the inner surface of the conical concave portion (4) by vapor deposition means or the like, and the center of the conical concave portion (4) is formed with a boundary surface between the inner surface and the reflective film (5) as a reflective surface. The laser beam is incident on the other end face through the line (3) and reflected so as to be reflected in all directions perpendicular to the center line (3), so that the center line (3) of the laser beam and the reflecting mirror (M ) Can be easily and accurately matched with the center line (3), and the laser beam reflected on the anti-slope surface is partially shielded in all directions orthogonal to the center line (3) of the reflector (M). The conical concave part (4), which is finished with high precision without forming a part, the boundary surface between the inner surface and the reflective film (5) becomes a reflective surface, so that irradiation can be performed while ensuring the linearity of the irradiation line .

Further, in the laser device for inking, a laser irradiating device (L) using the reflecting mirror (M) is attached to an adjusting plate (51) having a uniaxial or biaxial horizontal detecting means. (L) and the horizontal or vertical reference line formed by the horizontal control means are held on condition that they coincide with or parallel to each other, and the adjusting plate (51) is held by the horizontal detection means. The mirror (M) is supported swingably on a support frame provided with horizontal control means for controlling horizontal adjustment, and is held without intervening radiation obstacles around the central axis (12) of the reflection area of the reflector (M). The entire structure is covered with a cover body with at least the reflecting mirror (M) part protruding outside, and the cover body is fixed to the base, so that the laser beam from the laser irradiation device (L) can be highly accurate. Laser irradiation in precise horizontal or vertical directions As a line, it is clearly illuminated to a predetermined position such as the indoor peripheral wall, and the centering, horizontal,
It is possible to provide an optimal blackout laser device that can perform vertical blackout accurately and quickly by one operator.

[0016]

DETAILED DESCRIPTION OF THE INVENTION AND

DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment of Reflecting Mirror) First, a reflecting mirror according to the present invention.
FIG. 1 is an enlarged front view of a reflecting mirror (M), and FIG. 2 is an enlarged sectional view taken along a central axis, and a methacrylic resin having excellent light transmittance as a light transmitting member. (E.g.,
Using a parapet (trademark) resin member, an opening diameter of 7 mm (depth) is formed on one end surface of a solid columnar body (1) having a diameter of 8 mm (processing accuracy +0, -1/50) and a length of 5 mm by molding means. 3.
5 mm), the apex angle is 90 degrees (± 20 seconds), and the apex (2) is aligned with the center line (3) of the solid columnar body (1) to form a conical recess (4). (4) Reflective coating on inner surface by aluminum evaporation
(5) is formed, and the boundary surface between the reflection film (5) and the inner surface of the conical concave portion (4) is formed at a reflection intensity ratio of 25 to 80 (R _e = 0.05 to 0.8 μm).
In this configuration, a light beam passing through the center line (3) and entering from the other end surface is reflected in all directions orthogonal to the center line (3).

As the light-transmitting member, there are glass material, polycarbonate resin, polystyrene resin and the like. The glass material is formed by press molding, and the acrylic resin and polycarbonate resin are formed by splitting the opening surface of the conical recess (4). It is manufactured by injection molding using a mold having a dividing line and a gate having a part of the peripheral surface that does not hinder the reflection, but the material and the manufacturing means are not limited to the above.

(Embodiment of Laser Irradiating Apparatus) Next, an embodiment of the laser irradiating apparatus (L) equipped with the reflecting mirror (M) will be described. FIG. 3 shows an exploded cross section (partly) of the laser irradiating apparatus (L). FIG. 4 is a sectional view of the assembled state of the laser irradiation device (L), showing a holder (10) and a semiconductor laser light source (2).
1), lens holding tube (22), condenser lens system (23), mirror holding tube (2
4), a reflecting mirror (M) and a cap (26). The configuration of each part is as follows.

First, as shown in the partial cross-sectional view of FIG. 3, the holding body (10) is made of aluminum and has mounting flanges (11) on both sides of a substantially square pole having a total length of 40 mm in the longitudinal direction. The other surface is provided on the mounting bottom surface (13) which is provided along the central axis (12) along the axis and secures the parallelism with the central axis (12).
Along (12), from one end surface to the other end surface, a diameter of 9 mm,
Following the light source room (14) with a depth of 5 mm, a diameter of 6.5 mm and a depth of 2 mm
A light source exit hole (15), an adjustment holding hole (16) with a diameter of 9 mm and opening to the other end, are sequentially opened, and a lens holding cylinder
On the outer wall of the adjustment holding hole (16) in which the (22) fits, two adjustment fixing screws (17) for pressing the outer surface of the lens holding cylinder (22) at the tip to finely adjust and fix the position in the biaxial direction are provided. ).

The semiconductor laser light source (21) has a wavelength of 63
A 5 nm visible light semiconductor laser, wherein the holder (10)
The light source room (14) is fixed so that its radiating portion is directed from the light source exit hole (15) to the adjustment holding hole (16).

The lens holding cylinder (22) is an aluminum cylinder having a total length of 8 mm and having a light path at the center thereof. The lens holding cylinder (22) has an adjusting body (22a) having a slightly smaller diameter in the intermediate body.
A holding chamber (22b) for holding the condenser lens system (23) is formed at one end opening, and the outer peripheral surface of the outer wall is tapered to an outer surface taper (22c). ) Is stored in the adjustment holding hole (16).

The condenser lens system (23) is a semiconductor laser light source.
The laser beam emitted from the lens (21) is provided with a function to stop and collimate the laser beam, and is stored and held in a holding chamber (22b) of the lens holding cylinder (22).

Further, the mirror holding tube (24) is provided with the lens holding tube.
Similarly to (22), it is an aluminum cylindrical body having a total length of 16 mm with a light path at the center, an inner taper (24a) at the rear end, and the reflecting mirror (M) described in the above embodiment is fitted into the opening at the front end. A mirror holding chamber (24b) for fixing and fixing is provided at a depth that does not hinder the reflection azimuth, and a rear end of the lens holding chamber (22b) provided in the adjustment holding hole (16). ) Holding room (22
b) is brought into contact with the end formed with, and is held and fixed in the adjustment holding hole (16) so that the tip protrudes from the holder (10).

The reflecting mirror (M) is as described above, that is, a methacrylic resin (commonly called acrylyl resin) member having excellent light transmittance is used as the light-transmitting member, and has a diameter of 8 mm (processing accuracy +0). , -1 / 50), one end face of a solid columnar body (1) having a length of 5 mm has an opening diameter of 7 mm (depth 3.5 mm),
The apex angle is 90 degrees (± 20 seconds) and the apex (2) is a solid pillar (1)
A conical concave portion (4) is formed so as to coincide with the center line (3) of the conical concave portion, and a reflective film (5) is formed on the inner surface of the conical concave portion (4) by aluminum vapor deposition. 4) a boundary surface with the inner surface of (1) as a reflecting surface, and a light beam passing through the center line (3) and entering from the other end surface is reflected in all directions orthogonal to the center line (3). There is a conical recess with aluminum deposition
(4) is on the outside, and the center line (3) is
It is fitted to the mirror holding chamber (24b) of the mirror holding cylinder (24) so as to coincide with the center axis (12) of (0).

The cap (26) covers the surface of the conical concave portion (4) of the reflector (M) on which aluminum is deposited, and does not damage the outer peripheral surface of the reflector (M). It is composed of a synthetic resin or rubber member and is covered with an end on the side where the conical concave portion (4) opens.

(Embodiment of Inking Laser Apparatus) Finally, an embodiment of an inking laser apparatus (R) for irradiating a horizontal reference line according to the present invention will be described. FIG. Laser device for marking out in a state of being cleaned (R)
FIG. 6 is a schematic exploded front view showing a main body base portion (30), a horizontal support (40), and an adjustment block portion (50) substantially divided into three parts. FIG. 6 is a schematic plan view of the adjustment block portion (50) in FIG. It is.

The laser device (R) for horizontal marking in accordance with an embodiment of the present invention will be described with reference to the above-described drawings. The laser device (R) comprises a main body portion (A) and a cover body (B) which covers the main body portion. The device main part (A) indicated by a solid line in FIG. 1 is roughly divided into a main body base part (30), a horizontal support (40), and an adjustment block part (50). The support (40) is fixed, and the adjustment block (50) is attached to the horizontal support (4).
It is connected and supported by means allowing swinging in at least two directions perpendicular to the horizontal direction.

The main body base portion (30) is a female screw cylinder (3) for mounting on a stand such as a tripod provided at the center of the bottom surface.
Around the periphery of 1), three directly mounted legs (32) projecting below the female screw cylinder (31) are protruded, and a main pillar (33) having a screw hole formed at the upper end surface in the center of the upper surface. ), And a battery storage tube (34) with a lid, which is screwed and penetrated into the main body base portion (30) in the surrounding space portion, and whose bottom side is an exchange port, is erected.

The horizontal support (40) is located at an edge of the substrate (41), and has a motor shaft hole at each of two fixed radial positions on an orthogonal horizontal axis at which the center of the mounting hole intersects. The control motor (44) is fixed to the substrate (41) in a state where the drive shaft (43) having a screw shaft (42) at the tip portion passes through from below the motor shaft hole and projects upward. In addition, the control motor (4) is controlled by analog signals from two uniaxial horizontal sensors (S1) described later.
The control circuit for driving and controlling the 4) and the control circuit board (45) on which the laser irradiation device (L) is energized are fixed to the main pillar (33), and the swing direction of the adjustment block (50) is The guide column (46) for guiding is fixed.

Further, the adjusting block portion (50) has a swing support hole formed at the center thereof and an orthogonal horizontal biaxial line coinciding with the orthogonal horizontal biaxial line of the substrate (41) of the horizontal support (40). On a line and at a position corresponding to the motor shaft hole, an upper surface smooth horizontal adjusting plate (51) having a nut swingably with a horizontal pin parallel to each orthogonal horizontal biaxial line, and an upper surface thereof. And on the intersection of the orthogonal horizontal two axes, the holder (10)
The laser irradiator (L) attached via a support bracket so that the central axis (12) becomes a right angle, and the position of the air bubbles fixed in a plane T-shape in parallel with each of the orthogonal horizontal two axes. A single-axis horizontal sensor (S1) configured to control the control motor (44) by detecting with an electric detection means is provided.

Since the configuration of the laser irradiation device (L) is the same as that described above (embodiment of the laser irradiation device), detailed description of the configuration is omitted to avoid redundant description.

The adjusting block portion (50) is provided at the center thereof with a spherical support (46) and a substrate (41) of a horizontal support (40).
Control motor fixed to the board (41)
The screw shaft (42) connected to the drive shaft (43) of (44) and the adjusting plate (5
By means of screwing with a nut (52) supported by 1), the screw is connected and supported on the horizontal support (40) so as to be swingably adjustable, and the screw shaft is
In order to eliminate the vertical backlash error caused by the screwing of the nut (42) and the nut (52), the swing side adjustment plate (51)
And the fixed horizontal support (40) are connected by a tension spring (53).

FIG. 7 is a longitudinal sectional view of a uniaxial horizontal sensor.
FIG. 8 is a cross-sectional view of the same, and FIG. 9 is an explanatory view of a sensor amplifier of the single-axis horizontal sensor. The single-axis horizontal sensor shown in FIGS.
(S1) is an electrode disposition chamber (6) for enclosing the electrolyte (61) and bubbles (62).
3) The inner wall has a predetermined radius centered on the point (P) on the vertical line (V) passing through the center and is bisected by the vertical line (V).
This is a rotator shape obtained by rotating (AL) around a horizontal center line (H) orthogonal to the vertical line (V).

Then, a cross section perpendicular to the horizontal center line (H) is formed in a circular shape, and an enclosing wall having an inner peripheral wall surface having a high three-dimensional surface roughness of JIS Rmax 0.8 or less and a sealing end body are formed. In an electrode installation chamber (63) made of an insulating material (for example, made of polycarbonate or the like), the surface is polished using 18K (Au), Ag, Pt, or a similar metal or alloy material having a low ionization tendency. A common electrode that projects radially through the electrode disposition chamber (63) at a position corresponding to the vertical line (V) to make the surface area uniform.
(64) and the horizontal center line (H) with the common electrode (64) as the center.
At the left-right symmetrical position along, the surrounding electrode (65) projecting radially higher in the electrode disposition chamber (63) than the common electrode (64) and having a uniform surface area is penetrated in a liquid-tight state. .

In the electrode disposing chamber (63), bubbles (6)
2) Electrolyte mixed at a ratio where the surface tension is small and the impedance between electrodes is a predetermined value in a horizontal state.
(61), the common electrode (64) is always immersed in the electrolytic solution (61), does not touch the air bubbles (62), and the surrounding electrode (6
5) is sealed and sealed so as not to touch the air bubbles (62).

The electrolytic solution (61) is prepared by mixing purified water as a solvent, magnesium sulfate as a solute, and anhydrous methanol or ethanol as a solution at a ratio such that the impedance between the electrodes is about 40 to 50 KΩ. And
A material having a high boiling point and a low freezing point is used.

The single-axis horizontal sensor (S1), as shown in the explanatory diagram of the sensor amplifier in FIG. 9, forms an alternating current into a predetermined 4 KHz basic pulse by an oscillator OSC, and a 50% duty by a frequency divider F / F. The pulse is applied to the surrounding electrode (65) by the buffer amplifier SP1 and the buffer amplifier SP2 of the opposite phase pulse, and the signal is sent from the common electrode (64) to the signal amplifier circuit AMP1 in order to extract information from the pulse. The analog switch MP is output via an amplifier circuit AMP2 having a zero drift correction function by a variable resistor VR1.
At the same time, the synchronization signal from the frequency divider F / F is drawn into an analog switch, and the analog signal synchronized at the analog switch is sampled and held by a sample and hold circuit SH.
1 to the amplifier AMP3, and outputs a predetermined analog signal corresponding to the slope in the amplifier AMP3.Using the analog signal, the analog signal is controlled to zero by the mechanical control means as described above, and the slope is controlled. Although a high degree of horizontality with an accuracy of zero angle can be obtained, the mechanical control means is not limited to the means described above, and it is needless to say that a known conversion means can be used.

The reflecting mirror of the laser irradiating device (L) is provided on the device main body portion (A) configured as described above and in which the impedance between the electrodes is set to a predetermined value in a horizontal state.
A cover hole (B) provided with a window hole for projecting the (M) portion upward and a male screw ring (B1) surrounding the window hole is covered with the crown, and protrudes from the male screw ring (B1). The reflector (M) is covered with a protective cap (B2) that is screwed (B) to the male screw ring to complete the horizontal marking laser device.

The laser device for horizontal marking according to the present invention, which is constructed as described above, removes the protective cap and emits a laser beam in the horizontal direction to form a laser irradiation line with high precision and accuracy in all directions. It is displayed. For example, when the power is turned on after being placed on an arbitrary surface such as a room or fixed to a tripod base, the adjustment plate (51) supported swingably on the horizontal support (40) is attached to the adjustment plate ( The control motor (44) is driven by output signals from the two single-axis horizontal sensors (S1) on (51), thereby controlling the adjustment plate (51) to be horizontal and on the adjustment plate (51). Fixed laser irradiation device
The laser beam emitted from the semiconductor laser light source (21) of (L) is reflected in all directions in the horizontal direction by the anti-slope of the reflector (M), so that a continuous and accurate horizontal reference line is irradiated on a wall or the like. , This horizontal reference line to the ceiling,
Each work is performed as a standard for setting the floor and beams.

In the above embodiment, the case where two single-axis horizontal sensors (S1) are used has been described. Instead, the two-axis horizontal sensor (S2) whose structure is shown in FIGS. 10 and 11 is used. The same operation and effect can be achieved by using the above-mentioned method or by providing a level and a screw adjusting means which are conventionally various.

The structure of the two-axis horizontal sensor (S2) is briefly described in which two uniaxial horizontal sensors (S1) are crossed on a horizontal orthogonal two-axis line. The electrode (64) and the four surroundings having a uniform surface area protruding above the common electrode (64) on the horizontal intersection of the concentric circle centered on the common electrode (64) and the horizontal orthogonal biaxial line. The electrode (65) is held upright on an electrode holder,
Open the electrode holder at the center or the whole surface with a spherical recess (6
6a) is closed with a window plate (66) made of an insulating material such as glass, and the common electrode (64) is always immersed in the electrolyte (61) and bubbles
The air bubbles (62) and the surface tension are small and the impedance between the electrodes is predetermined in the horizontal state so that the surrounding electrodes (65) do not touch the air bubbles (62) in the horizontal state without touching (62). With the electrolyte solution (61) mixed in a ratio that becomes a value,
Although the common electrode (64) is always sealed and sealed by an amount immersed in the electrolytic solution, its sensor amplifier is already known in Japanese Patent Application Laid-Open No. 8-219780 and the description thereof is omitted.

[Brief description of the drawings]

FIG. 1 is an enlarged front view of a reflecting mirror according to an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view along the center axis.

FIG. 3 is an exploded sectional view of the laser irradiation apparatus according to the embodiment of the present invention.

FIG. 4 is a sectional view showing an assembled state of the laser irradiation apparatus.

FIG. 5 is an exploded schematic front view of the blackout laser device according to the embodiment of the present invention, which is substantially divided into three parts with a protective cap removed.

FIG. 6 is a schematic plan view of the adjustment block unit (50) in FIG. 5;

FIG. 7 is a longitudinal sectional view of a uniaxial horizontal sensor used in a laser device for horizontal marking out according to an embodiment of the present invention.

FIG. 8 is a cross-sectional view of the uniaxial horizontal sensor of FIG. 7;

FIG. 9 is an explanatory diagram of a sensor amplifier of a one-axis horizontal sensor.

FIG. 10 is a longitudinal sectional view of a biaxial horizontal sensor used in a laser device for horizontal blackout according to an embodiment of the present invention.

FIG. 11 is a horizontal sectional view of the two-axis horizontal sensor of FIG. 10;

[Explanation of symbols]

 (M) Reflector (1) Solid pillar (2) Top (3) Centerline (4) Conical recess (5) Reflective film (L) Laser irradiation device (10) Holder (11) Mounting flange (12) Center axis (13) Mounting base (14) Light source chamber (15) Light source exit hole (16) Adjustment holding hole (17) Adjustment fixing screw (21) Semiconductor laser light source (22) Lens holding cylinder (23) Condensing lens system (24) Mirror holding tube (26) Cap (R) Laser device for blacking out (A) Device main body (B) Cover body (30) Main body base (40) Horizontal support (50) Adjustment block (S1) Single axis horizontal sensor (S2) Dual axis horizontal sensor

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[Procedure amendment]

[Submission date] June 30, 1998 (1998.6.3)
0)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 7

[Correction method] Change

[Correction contents]

FIG. 7

Claims (5)

[Claims] 1. A solid columnar body (1) made of a translucent member has an apex angle of 90 degrees on one end surface thereof and a top (2) of which is connected to the center line (3) of the solid columnar body (1). To form a conical concave portion (4), and a reflective member layer is formed on the inner surface of the conical concave portion (4) by vapor deposition means or the like, and the boundary surface between the reflective film (5) and the inner surface of the conical concave portion (4) is formed. A reflecting surface, and a light beam passing through the center line (3) and entering from the other end surface is reflected in all directions orthogonal to the center line (3). 2. A light source room in which a section perpendicular to the center line is a circular hole.
(14) A holder (10) in which the adjustment holding chamber (16) is sequentially formed on the center line (3), a semiconductor laser light source (21) housed and held in the light source chamber (14), and an adjustment holding hole. The lens holding tube (22) holding the condenser lens system (23) and the mirror holding tube (24) holding the reflecting mirror (M), which are stored and held in (16), are stored and held in the respective chambers. A semiconductor laser light source (21), a condenser lens system (23), and a reflecting mirror (M), and the reflecting mirror (M) is connected to one end surface of a solid columnar body (1) made of a translucent member. And the vertex angle is 90
Degrees and the top (2) is the center line (3) of the solid column (1)
To form a conical concave portion (4), and a reflective film (5) is formed on the inner surface of the conical concave portion (4) by vapor deposition means or the like.
The boundary surface between (5) and the inner surface of the conical recess (4) is used as a reflecting surface, and the laser light passing through the center line (3) and incident from the other end surface is reflected in all directions orthogonal to the center line (3). A laser irradiation apparatus characterized in that the laser irradiation is performed. 3. A light source room in which a section perpendicular to the center line is a circular hole.
(14) A holder (10) in which the adjustment holding chamber (16) is sequentially formed on the center line (3), a semiconductor laser light source (21) housed and held in the light source chamber (14), and an adjustment holding hole. The lens holding tube (22) holding the condenser lens system (23) and the mirror holding tube (24) holding the reflecting mirror (M), which are stored and held in (16), are stored and held in the respective chambers. A semiconductor laser light source (21), a condenser lens system (23), and a reflecting mirror (M), and the reflecting mirror (M) is connected to one end surface of a solid columnar body (1) made of a translucent member. And the vertex angle is 90
Degrees and the top (2) is the center line (3) of the solid column (1)
To form a conical concave portion (4), and a reflective film (5) is formed on the inner surface of the conical concave portion (4) by vapor deposition means or the like.
The boundary surface between (5) and the inner surface of the conical recess (4) is used as a reflecting surface, and the laser light passing through the center line (3) and entering from the other end is reflected in all directions orthogonal to the center line (3). The laser irradiation device (L), which is adapted to be irradiated by the laser, is swingably supported by a support frame provided with horizontal control means for controlling horizontal adjustment based on horizontal detection means, and is uniaxially or biaxially oriented. An adjustment plate (51) equipped with horizontal detection means
The center line (3) of (L) and the horizontal or vertical reference line formed by the horizontal control means are aligned or parallel, and radiation interference is caused around the center axis (12) of the reflection area of the reflector (M). An object is held without intervening, and at least the reflecting mirror (M) of the laser irradiation device (L) is entirely covered with a cover in a state of protruding to the outside. A laser device for marking out, wherein the reflected mirror (M) is protected by a removable protective cap (26). 4. The apparatus according to claim 1, wherein the horizontal detection means and the horizontal control means include a bubble.
Two or one two-axis horizontal sensor (S2) of one-axis horizontal sensor (S1) configured to output a plurality of angle information signals detected by the electric detection means corresponding to the position of (62) as analog signals, respectively. (S2) a horizontal detecting means, which is controlled by an angle information signal from the horizontal detecting means, and is mounted on a corresponding position of a support frame capable of adjusting the swing of the adjusting plate (51), and Multiple control motors for (44)
4. The laser device according to claim 3, further comprising a horizontal control unit configured to control the driving of the control motor in accordance with an angle information signal from the horizontal detection unit. 5. The uniaxial horizontal sensor (S1) is configured such that the electrode disposing chamber (63) for enclosing the electrolyte (61) and the air bubbles (62) has a predetermined radius centered on a point on the vertical line and the vertical line. Is a rotator shape obtained by rotating an arc line bisecting at about a horizontal center line (3) orthogonal to the vertical line.
(3) An electrode holder made of an insulating material formed by an inner peripheral wall and a sealing end body having a circular cross section perpendicular to, and having a high surface roughness obtained by polishing and lapping. (10), a common electrode (64) that projects radially through the electrode disposition chamber (63) at a position corresponding to the vertical line.
At the symmetrical position along the horizontal center line (3) around the common electrode (64), the common electrode (64) protrudes higher in the radial direction in the electrode disposition chamber (63) than the common electrode (64) and has a uniform surface area. And the surrounding electrodes (65) are penetrated in a liquid-tight state, respectively, and the air bubbles (62) and the surface tension are small and the impedance between the electrodes is a predetermined value in a horizontal state in the electrode arrangement chamber (63). The electrolyte solution (61) mixed at a certain ratio, the common electrode (64) always contacts the electrolyte solution (61) without touching the bubbles (62).
Immersed in air, and in a horizontal state, the surrounding electrode (65)
5. The laser according to claim 3, wherein each of the laser devices is sealed so as not to touch 2) and outputs a control signal for controlling the control motor.