JPH089701Y2 - Laser pointer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a laser pointer device, and in particular, a laser beam generated by a semiconductor laser is condensed by an optical system to form a light beam, which is projected onto a projection surface. The present invention relates to a laser pointer device that gives instructions.

[Conventional technology]

Handy type laser pointer devices are being widely used because they can be used easily, but the output of the light beam must be confirmed by the user from the laser safety standards (see Japanese Industrial Standards) before use. Class 2
Belong to.

Conventionally, this type of laser pointer device is generally not provided with a safety mechanism, and its safety depends on the user.

In addition, the conventional laser pointer device generally has an elongated outer shape, and a user holds a hand and emits a light beam in one direction from the tip in the longitudinal direction.

[Problems to be solved by the device]

The above-described conventional laser pointer device can emit the light beam only in one direction from the tip in the longitudinal direction. Therefore, when projecting the light beam, the projection surface such as a screen or a wall far away is projected. It is easy to instruct with the elbow extended and the wrist largely bent, but for the projection surface such as a screen or a wall nearby, it is necessary to bend the elbow further and bend the wrist accordingly to give instructions. However, there was a problem that it was difficult to give instructions.

Further, in the conventional laser pointer device, a light beam is emitted by operating the light emitting operation member, but the light beam is emitted to the outside of the housing due to erroneous operation of the light emitting operation member, failure of an electronic circuit, or the like. There is a problem in that the laser light leaks out and the user or the like carelessly exposes it to the laser light.

In view of the above points, an object of the present invention is to make it possible to emit a light beam in a plurality of directions to facilitate pointing of a projection surface and to prevent inadvertent exposure to laser light. It is to provide a laser pointer device.

[Means for solving the problem]

The laser pointer device of the present invention is a laser pointer device that gives instructions by projecting a laser beam generated by a semiconductor laser by an optical system into a light beam and projecting the light beam onto a projection surface. A light beam direction changing operation member that is displaced to a first position that emits laser light in a vertical direction with respect to a surface, a second position that emits laser light in a horizontal direction, and a third position that exposes only in the housing. And a reflecting mirror that moves in conjunction with the operation of the light beam direction changing operation member and changes the direction of the light beam by reflecting or not reflecting the light beam.

[Action]

In the laser pointer device of the present invention, the light beam direction changing operation member emits the laser light in the vertical direction at least with respect to the light emitting surface of the semiconductor laser, the second position in which the laser light is emitted in the horizontal direction, and the casing. It is displaced to the third position where it is exposed only in the body, and the reflecting mirror moves in conjunction with the operation of the light beam direction changing operation member to change the direction of the light beam by reflecting or not reflecting the light beam. .

〔Example〕

Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing the outer appearance of a laser pointer device according to an embodiment of the present invention. The laser pointer device according to the present embodiment is housed in a vertically long rectangular parallelepiped casing 1, and a tip end surface (upper end surface in the drawing) of the laser pointer device is notched obliquely toward one end, and a light emitting operation is performed on the inclined surface. A member 2 is provided.

A light beam direction switching operation member 3 for switching the emission direction of the light beam is rotatably provided on the side surface (right side surface in the drawing) of the housing 1.

Further, a first light beam emitting port 1a for emitting a light beam in a direction perpendicular to the light emitting surface of the semiconductor laser 7 (see FIGS. 2A to 2C) is formed on the front end surface of the housing 1. A second light beam emission port 1b for emitting a light beam in the horizontal direction to the light emitting surface of the semiconductor laser 7 is provided on the front surface (left side surface in the drawing) orthogonal to the tip surface.

In FIG. 1, reference numeral 1c designates a regulating ridge that regulates the position of the index finger when the housing 1 is gripped by the hand (prevents the index finger from covering the second light beam emission port 1b). Reference numeral 4 denotes a focus adjustment operation member for adjusting the focus of the light beam by moving the optical system 8 (see FIGS. 2A to 2C) in the optical axis direction.

The light beam direction switching operation member 3 is shown in FIG.
As shown in (c), a reflecting mirror 6 is connected to the rotating plate 5 and is mounted and fixed on the rotating plate 5 for switching the direction of the light beam. The rotating plate 5 has a direction in which a light beam obtained by collecting visible laser light generated by the semiconductor laser 7 with an optical system 8 including a lens is perpendicular to the light emitting surface of the semiconductor laser 7 (longitudinal direction of the housing 1). 1) to be emitted to
Rotation position (see FIG. 2A) and the horizontal direction (case 1
A second rotational position (see FIG. 2 (b)) that emits light in a direction (perpendicular to the longitudinal direction of) and a third rotational position (see FIG. 2 (c)) that reflects the light inside the housing 1. The click stop is performed by the engagement of the click groove 1d on the housing 1 side with the first click protrusion 5a, the second click protrusion 5b, and the third click protrusion 5c on the rotating plate 5 side at the three rotation positions. It is like this.

At the first rotation position of the rotary plate 5, the reflection mirror 6 retracts the laser beam generated from the semiconductor laser 7 from the traveling path of the light beam condensed by the optical system 8, and at the second rotation position of the rotary plate 5. The light beam travels at an inclination angle of 45 degrees, and at the third rotation position of the rotating plate 5, the light beam travels at an inclination angle of 90 degrees or more. .

In FIGS. 2A to 2C, reference numeral 9 is an electronic circuit for driving the semiconductor laser 7, etc., and 10 is a power source composed of a battery such as a dry battery for driving the semiconductor laser 7, electronic circuit 9, etc. Shown respectively.

Next, the operation of the laser pointer device of this embodiment having the above configuration will be described.

As shown in FIG. 2A, by operating the light beam direction changing operation member 3, the click groove 1d on the housing 1 side and the first click protrusion 5a on the rotating plate 5 side are engaged with each other to rotate the rotating plate 5. At the first rotation position of the rotary plate 5 where is click-stopped, the laser light generated from the semiconductor laser 7 by the operation of the light emitting operation member 2 is condensed by the optical system 8 and is converted into a light beam by the reflection mirror 6. 1st without being reflected
Is emitted in the longitudinal direction of the housing 1. Therefore, if a laser beam is emitted from the laser pointer device in the longitudinal direction of the housing 1 with the laser pointer device held in the hand, the elbow extended and the wrist bent, the light is projected onto a projection surface such as a screen or a wall located far away. A beam can be projected.

Further, as shown in FIG. 2 (b), by operating the light beam direction changing operation member 3, the click groove 1d on the housing 1 side and the second click protrusion 5b on the rotating plate 5 side are engaged and rotated. At the second rotation position of the rotary plate 5 where the plate 5 is click-stopped, the laser light generated from the semiconductor laser 7 by the operation of the light emitting operation member 2 is condensed by the optical system 8 to be a light beam. , Reflected by reflection mirror 6 90
The light beam is deflected once and is emitted from the second light beam emission port 1b in a direction orthogonal to the longitudinal direction of the housing 1. Therefore, a light beam can be emitted from the laser pointer device in a direction orthogonal to the longitudinal direction of the housing 1 without bending the wrist while holding the laser pointer device with a hand and holding the elbow, and a screen or a nearby screen can be emitted. The light beam can be easily projected onto the projection surface such as a wall.

Further, as shown in FIG. 2 (c), by operating the light beam direction changing operation member 3, the click groove 1d on the housing 1 side and the third click protrusion 5c on the rotating plate 5 side are engaged and rotated. Board 5
At the third rotation position of the rotary plate 5 where is click-stopped, the laser light generated from the semiconductor laser 7 by the operation of the light emitting operation member 2 is condensed by the optical system 8 to be a light beam and then reflected. The light is reflected by the mirror 6 and deflected toward the inside of the housing 1 so that the inside of the housing 1 does not leak to the outside.

In the above embodiment, the emission direction of the light beam can be changed to three directions, that is, the horizontal direction, the vertical direction, and the inside of the housing with respect to the light emitting surface of the semiconductor laser 7.
If a continuous elongated hole is formed from the light beam outlet 1a to the second light beam outlet 1b, and the rotating plate 5 can be stopped at any rotation position, the light beam emission direction can be continuous in any direction. It is also possible to change to.

FIG. 3 is a perspective view showing the outer appearance of a laser pointer device according to another embodiment of the present invention. In the laser pointer device of this embodiment, a sliding type light beam direction changing operation member 13 is provided instead of the rotary type light beam direction changing operation member 3 in the laser pointer device of the embodiment shown in FIG. It is the one. Therefore, other members not specifically mentioned are given the same reference numerals as those of the laser pointer device of the embodiment shown in FIG. 1 and their detailed description will be omitted.

The light beam direction switching operation member 13 is shown in FIG.
As shown in (c), the first reflecting mirror 16A and the second reflecting mirror 16B, which are connected to the sliding plate 15 and switch the direction of the light beam, are placed on the sliding plate 15, respectively. It is fixed. The sliding plate 15 has a light beam obtained by condensing visible laser light emitted from the semiconductor laser 7 with an optical system 8 including a lens in a direction perpendicular to the emission surface of the semiconductor laser 7 (longitudinal direction of the housing 1). Direction) and a second sliding position (see FIG. 4 (FIG. 4 (a))) and a horizontal direction (direction orthogonal to the longitudinal direction of the housing 1). b)) and a third sliding position (see FIG. 4 (c)) for reflecting the light inside the housing 1 at three sliding positions, the click groove 1e and the sliding plate on the housing 1 side. 15th first click protrusion
15a, second click protrusion 15b and third click protrusion 1
It is designed to be click-stopped by engagement with 5c.

The first reflection mirror 16A and the second reflection mirror 16B are
At the first sliding position of the sliding plate 15, the laser beam generated from the semiconductor laser 7 is retracted from the traveling path of the light beam condensed by the optical system 8, and at the second sliding position of the sliding plate 15. The first reflecting mirror 16A enters at a tilt angle of 45 degrees with respect to the traveling path of the light beam, and at the third sliding position of the sliding plate 15, the second reflecting mirror 16A is at the second position.
The reflection mirror 16B enters the optical path of the light beam at an inclination angle of 90 degrees or more.

Next, the operation of the laser pointer device of this embodiment having the above configuration will be described.

As shown in FIG. 4 (a), by operating the light beam direction changing operation member 13, the click groove 1e on the housing 1 side and the first click protrusion 15a on the sliding plate 15 side engage and slide. At the first sliding position of the sliding plate 15 where the plate 15 is click-stopped, the laser light generated from the semiconductor laser 7 by the operation of the light emitting operation member 2 is condensed by the optical system 8 as a light beam, First reflection mirror 16A and second reflection mirror 16B
First light beam exit without being reflected by
The light is emitted from 1a in the longitudinal direction of the housing 1. Therefore, if a laser beam is emitted from the laser pointer device in the longitudinal direction of the housing 1 with the laser pointer device held in the hand, the elbow extended and the wrist bent, the light is projected onto a projection surface such as a screen or a wall located far away. A beam can be projected.

Further, as shown in FIG. 4B, the click groove 1e on the housing 1 side and the second click protrusion 15b on the sliding plate 15 side are engaged by the operation of the light beam direction changing operation member 13. Sliding plate 15
At the second sliding position of the sliding plate 15 where is click-stopped, after the laser light generated from the semiconductor laser 7 by the operation of the light emitting operation member 2 is condensed by the optical system 8 to be a light beam. The light is reflected by the first reflection mirror 16A, deflected by 90 degrees, and emitted from the second light beam emission port 1b in a direction orthogonal to the longitudinal direction of the housing 1. Therefore, it is possible to emit a light beam from the laser pointer device in a direction orthogonal to the longitudinal direction of the housing 1 without bending the wrist while holding the laser pointer device in the hand and bending the elbow.
The light beam can be easily projected onto a projection surface such as a screen or a wall located nearby.

Further, as shown in FIG. 4 (c), by operating the light beam direction changing operation member 13, the click groove 1e on the housing 1 side and the third click protrusion 15c on the sliding plate 15 side are engaged with each other. Sliding plate 1
At the third sliding position of the sliding plate 15 where 5 was click-stopped, the laser light generated from the semiconductor laser 7 by the operation of the light emitting operation member 2 was condensed by the optical system 8 to be a light beam. After that, the light is reflected by the second reflection mirror 16B and deflected toward the inside of the housing 1 so that the inside of the housing 1 does not leak to the outside.

[Effect of device]

As described above, according to the present invention, the laser beam generated from the semiconductor laser is reflected or reflected by the reflection mirror in conjunction with the operation of the light beam direction changing operation member. When projecting the light beam on a projection surface such as a screen or a wall far away by deflecting it, the elbow is extended and the wrist is bent to emit the light beam from the laser pointer device in the longitudinal direction of the housing. ,
When projecting a light beam on a projection surface such as a screen or a wall nearby, the light beam can be emitted from the laser pointer device in a direction orthogonal to the longitudinal direction of the housing without bending the elbow and the wrist. There is an effect that the light beam can be easily projected on the projection surface far away and the projection surface near it to give an instruction.

Further, if the light beam direction changing operation member is at the third position, the light beam does not leak to the outside of the housing even if the light emitting operation member is erroneously operated or the electronic circuit is broken, so that the user or the like is not prepared. There is an effect that there is no possibility of being exposed to laser light.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external appearance of a laser pointer device according to an embodiment of the present invention, and FIGS. 2 (a) to 2 (c) show internal operation modes of the laser pointer device shown in FIG. FIG. 3 is a sectional view, FIG. 3 is a perspective view showing the appearance of a laser pointer device according to another embodiment of the present invention, and FIGS. 4 (a) to 4 (c) are internal operations of the laser pointer device shown in FIG. It is sectional drawing which shows each aspect. In the figure, 1 ... Casing, 1a ... 1st light beam emission port, 1b ... 2nd
Light beam outlet, 1c ... regulating ridge, 1d, 1e ... click groove, 2 ... light emitting operation member, 3,13 ... light beam direction changing operation member, 4 ... focus adjusting operation member, 5 ...... Rotating plate,
5a ... first click protrusion, 5b ... second click protrusion, 5c ... third click protrusion, 6 ... reflection mirror, 7
...... Semiconductor laser, 8 ...... Optical system, 9 ...... Electronic circuit, 10
...... Power supply, 15 ...... Sliding plate, 15a ...... First click projection, 15b ...... Second click projection, 15c ...... Third click projection, 16A ...... First reflection mirror, 16B ...... It is a second reflection mirror.

Claims (3)

[Scope of utility model registration request] 1. A laser pointer device for directing an instruction by projecting a laser beam generated by a semiconductor laser by an optical system into a light beam and projecting the light beam onto a projection surface, at least for a light emitting surface of the semiconductor laser. Light beam direction changing operation member that is displaced to a first position for emitting laser light in a vertical direction, a second position for emitting laser light in a horizontal direction, and a third position for exposing the laser light only in the housing, and A laser pointer device comprising: a reflection mirror that moves in association with the operation of the beam direction changing operation member to change the direction of the light beam by reflecting or not reflecting the light beam. 2. The laser pointer device according to claim 1, wherein the light beam direction changing operation member is a rotation operation member. 3. The laser pointer device according to claim 1, wherein the light beam direction changing operation member is a sliding operation member.