JP3281495B2 - Solid state laser oscillator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optically pumped solid-state laser oscillation device, and more particularly to a structure of the device.

[0002]

2. Description of the Related Art Conventionally, as shown in Japanese Patent Application Laid-Open No. 1-304790, a holder holding a laser medium and a lamp is housed in a case body and fixed to both sides of the case body by bolts. There is provided a laser oscillation device in which both sides of the holder are fixedly held by the provided lid.

[0003]

However, in the above-mentioned conventional structure, when the holding body is taken out for maintenance or the like, the bolts are removed and the lids are detached from both sides of the case body, and then the holding body is moved to the case body. Since both of the lids have to be removed as described above, there is a problem that the operation is troublesome.

[0004]

According to a first aspect of the present invention, there is provided a solid-state laser oscillator comprising a cylindrical housing in which a solid-state laser medium and a flash lamp for exciting the solid-state laser medium are arranged substantially in parallel. Lids for closing the openings are provided at both end openings, respectively.These lids are provided integrally with the solid-state laser medium and the flash lamp, and one lid is provided at a stopper provided at one opening edge of the housing. The other lid body is arranged so as to abut from the inside, and the outer peripheral edge thereof is arranged to abut against the other opening edge of the housing from the outside.

According to a second aspect of the present invention, in the solid-state laser oscillation device, the other opening edge of the housing or the outer peripheral edge of the other lid is detached so that the other lid is detached from the housing. Means are provided.

[0006]

In the solid-state laser oscillator according to the first aspect, when maintenance or the like is performed, a bolt for fixing the outer peripheral edge of the other lid to the other opening edge of the housing is removed, and the other lid is moved outward from the housing. Then, the solid-state laser medium and the flash lamp, which are provided integrally with the other lid, and one lid are simultaneously taken out of the housing.

In the solid-state laser oscillation device according to the second aspect,
The other lid is easily detached from the other opening edge of the housing by the detaching means.

[0008]

An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show a schematic configuration of a solid-state laser oscillation device according to the present invention. FIG. 1 is a longitudinal sectional view of the solid-state laser oscillation device, and FIG. 2 is a sectional view taken along line AA in FIG.

In FIG. 1, reference numeral 1 denotes a cylindrical housing having both ends opened. A solid laser medium 2 and a flash lamp 3 are housed in the housing 1 while being supported by lids 4 and 5 described later. ing.

The solid-state laser medium 2 is disposed substantially at the center of the housing 1. As the solid laser medium 2, YAG, glass, ruby, or the like is used.

The flash lamp 3 serves to optically excite the solid-state laser medium 2, and the solid-state laser medium 2
Are arranged in parallel with the target position.

Openings at both ends of the housing 1 are lids 4,
5 closed.

One of the lids 4 is attached to a stopper ring 1b fixed to one opening edge of the housing 1.
The contact is arranged from inside.

The other lid 5 has a flange portion 5a formed on the outer edge thereof. The flange portion 5a is disposed in contact with the flange 1a formed on the other opening edge of the housing 1 from the outside, and the inner surface side expansion. The protrusion 5b is inserted into the other opening of the housing 1. The other lid 5 has the flange portion 5a fixed to the flange 1a of the housing 1 by an appropriate number of bolts 5c.

The lids 4 and 5 support both ends of the solid-state laser medium 2, and the flash lamps 3 and 3 are disposed through the lids 4 and 5.

A cooling water pipe 6 is disposed on the outer periphery of each of the flash lamps 3 located between the lids 4 and 5 with an appropriate gap therebetween. , 5
It is supported by. The cooling water pipe 6 is formed of a transparent body so as not to block the light of the flash lamp 3.

Both ends of the flash lamp 3 projecting from the lids 4 and 5 are provided with bolts 7b and
8b, the cooling water supply member 7 and the cooling water discharge member 8, which are integrally fixed to each other, are loosely fitted inside the cooling water supply member 7 and the passage 9 formed in the cooling water supply member 7 and the cooling water discharge member 8.
And the inside of the cooling water pipe 6 are communicated. The cooling water supply member 7 has a cooling water supply port 7a formed therein, and the cooling water discharge member 8 has a cooling water discharge port 8a formed therein. The cooling water supply port 7a, the passage 9 and the cooling water pipe 6 , And a cooling water discharge port 8 a constitute a cooling path for cooling the flash lamp 3.

The outer ends of the cooling water supply member 7 and the cooling water discharge member 8 are closed by a support member 10, and both ends of the flash lamp 3 are supported by the support member 10.

Outside the cooling water pipe 6, a reflection plate 11 is arranged at a target position as shown in FIGS. The reflector 11 is integrally fixed between the lids 4 and 5 by bolts 13 via a reflector mounting member 12.

Therefore, the solid-state laser medium 2, the flash lamp 3, and the reflection plate 11 are integrally provided on the right and left lids 4, 5, and these lids 4, 5 and the solid-state laser medium 2, , Flash lamp 3 and reflector 1
1 is fixed to the housing 1 only by fastening the flange portion 5a of the lid 5 to the flange 1a of the housing 1 with a bolt 5c.

Further, the flange 1a of the housing 1
A plurality of bolts (detachment means) 15 for detaching the other lid body 5 abutting on the flange 1a from the flange 1a are provided on the same circumference (for example, three bolts 15 at equal intervals on the same circumference).
) Are provided. The bolt 15 is provided on the flange 1 a of the housing 1 so as to be screwable to the lid 5 side. By gradually screwing the bolt 15, the lid 5 is detached from the housing 1 at its tip.

As shown in FIG. 2, a supply port 1c for supplying cooling water into the housing 1 and a discharge port 1d for discharging cooling water from the housing 1 are formed at appropriate places in the housing 1. A cooling path for cooling the solid-state laser medium 2 is formed in the housing 1 by the outlet 1d.

In FIG. 1, reference numeral 16 denotes a seal member interposed between the other lid 5 and the flange 1a of the housing 1, and 17 denotes a seal member between the stopper ring 1b and one opening edge of the housing 1. An interposed seal member, 18 is a seal member interposed between the stopper ring 1b and one lid 4, and 19 is a seal member interposed between the solid-state laser medium 2 and both lids 4, 5. And these sealing members 16 to
19 forms the inside of the housing 1 in a watertight structure.

Next, a case where maintenance or the like of the solid-state laser oscillator configured as described above is performed will be described.

First, the bolt 5c is removed from the flange portion 5a of the lid 5, and in this state, the flange 1c of the housing 1 is removed.
a, a plurality of bolts 15 provided on the flange portion 5a.
Then, the flange 5 a is gradually moved in the direction of arrow Q with the tip of the bolt 15, and the lid 5 is removed outward from the other open end of the housing 1.

When the cover 5 is detached outward from the other open end of the housing 1 in this manner, the solid-state laser medium 2, the flash lamp 3, the reflector 11, the
The lid 4 can be simultaneously pulled out of the housing 1 in the arrow Q direction. Thus, maintenance of the solid-state laser oscillation device is performed.

As described above, in the solid-state laser oscillation device of the present invention, the solid-state laser medium 2, the flash lamp 3 and the like can be easily taken out of the housing 1 simply by removing the bolt 5c and pulling out the lid 5 in the direction of arrow Q. be able to.

When the solid-state laser medium 2, the flash lamp 3 and the like taken out as described above are housed in the housing 1, the housing 1
And the lid 4 is brought into contact with the stopper ring 1b, and the bulging portion 5b on the inner surface side of the lid 5 is fitted into the inner surface of the opening edge of the other end of the housing 1.
And the flash lamp 3 and the like are positioned and arranged,
Thereafter, the flange 5a of the lid 5 and the flange 1a of the housing 1 are fixed with bolts 5c.

In this embodiment, the inner bulge 5 is provided on the lid 5.
b, and the inner bulge 5b is fitted into the inner surface of the opening edge of the other end of the housing 1.
When a positioning mechanism for the solid-state laser medium 2 and the flash lamp 3 with respect to the housing 1 is formed on the side, or when positioning is not required due to accuracy or structure,
There is no need to form the inner-side bulging portion 5b on the lid 1, and it may be a simple flat plate.

FIG. 3 shows another embodiment of the detaching means for detaching the lid 5 from the opening edge of the other end of the housing.

The detaching means comprises a ring 20 screwed into the peripheral surface of the flange 1a of the housing 1.
Is screwed into the flange portion 5a side and is brought into contact with the outer edge of the flange portion 5a, whereby the lid 5 is detached in the arrow Q direction.

As described above, when the lid 5 is detached by the ring 20, the lid 5 can be detached more uniformly as compared with the case where the plurality of bolts 15 are used.
The lid 5 can be operated in one operation regardless of the operation of the plurality of bolts 15.
Can be removed.

The detaching means is not limited to the bolt 15 and the ring 20 of the present embodiment, but may be configured to detach the lid 5 from the housing 1 using a mechanical device such as a cylinder device.

[0035]

As described above, according to the solid-state laser oscillator according to the first aspect of the present invention, when performing maintenance or the like, the outer peripheral edge of the other lid and the other open edge of the housing are fixed. By removing the bolt to be removed and pulling the other lid outward from the housing, the solid laser medium provided integrally with the other lid, the flash lamp, and one lid can be simultaneously taken out of the housing, Good workability without trouble.

In the solid-state laser oscillation device according to the second aspect,
By detaching the other lid from the other opening edge of the housing by the detaching means, the lid and other members can be easily taken out of the housing, and the workability can be further improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a solid-state laser oscillation device according to the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is a longitudinal sectional view showing another embodiment of the detaching means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 1b Stopper ring (stopper) 2 Solid laser medium 3 Flash lamp 4, 5 Lid 15 Bolt (separation means) 20 Ring (separation means)

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) H01S 3/00-3/30 JICST file (JOIS)

Claims (2)

(57) [Claims] 1. A cylindrical housing in which a solid-state laser medium and a flash lamp for exciting the solid-state laser medium are disposed substantially parallel to each other. Is provided integrally with the solid-state laser medium and the flash lamp, one of the lids is disposed in contact with a stopper provided at one opening edge of the housing from inside, and the other lid has an outer peripheral edge of the housing. A solid-state laser oscillation device configured to be disposed in contact with the other opening edge from the outside. 2. A solid-state laser oscillation device according to claim 1, further comprising a detaching means for detaching the other lid outward from the housing at the other opening edge of the housing or the outer peripheral edge of the other lid. apparatus.