JPH053214Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a light processing device that guides emitted light from a short-arc type discharge lamp or the like to an object to be irradiated and optically processes the object.

[Prior Art] Light irradiation can be used to cure or dry adhesives, paints, inks, resists, etc.
On the contrary, various treatments such as melting and softening are performed. The objects to be irradiated, such as adhesives, paints, inks, and resists, are then subjected to light irradiation treatment using light generated from a short arc discharge lamp, etc., to specific parts of the object to be irradiated. It is done by

Therefore, there have conventionally been light processing devices that condense and guide light generated from the short arc type discharge lamp or the like to a desired portion of the object to be irradiated.

FIG. 3 is a side sectional view of a conventional optical processing device.
1 is a short arc type discharge lamp; 2 is an elliptical condensing mirror arranged so that the center of the discharge arc of this discharge lamp is located at its first focal point; and 3 reflects the light from the elliptical condenser mirror 2. 4 is a shutter for blocking the light from the reflecting mirror 3; 5 is a filter for cutting off heat rays from the luminous flux passing through the shutter 4; 6 is the discharge lamp 1, the elliptical condensing mirror 2, and the reflecting mirror 3; This is a lamp body that houses a mirror 3 and a shutter 4. The lamp body 6 is provided with an optical fiber unit joint 7a that allows various optical fiber units to be attached to the object to be irradiated to derive the luminous flux through the filter 5. The optical fiber unit 14 is attached to this optical fiber unit joint 7a as described above.
It is designed to be removable.

The screw 8 is used to fix the fiber unit 14 to the optical fiber unit joint 7a.

In the light processing device as described above, light from a discharge lamp 1 located at a first focal point is focused by an elliptical condenser mirror 2 at a second focal point via a reflecting mirror 3, a shutter 4, and a filter 5. Since the second focal point is located near the unit joint 7a, the light from the discharge lamp 1 is focused near the unit joint 7a of the lamp body 6. The light focused on this second focal point is
Thereafter, the light passes through the fiber unit 14 connected to the unit joint 7a and is irradiated onto a photo-processed portion of the object (not shown).

In general, objects to be irradiated have various shapes, sizes, and structures, and there may be one or more objects. Therefore, in order to irradiate the object to be irradiated with the light processing device, it is necessary to select the fiber unit 14 accordingly. For example, when there are five objects to be irradiated, a five-branch fiber unit 14 is selected and distributed to the five objects. In this case, the optical fiber bundle is usually about 100 fibers each having a diameter of about 100 to 250 μm. For this purpose, a fiber unit 14 is attached to the lamp body 6 of the conventional optical processing apparatus to perform optical processing, which can correspond to the number of objects to be irradiated and the size, shape, and structure of the light-treated portion of the irradiated objects.

[Problems to be solved by the invention] Conventional devices such as those described above cannot be used to treat objects with complex shapes and structures that have minute areas to be irradiated, or where the light processing device itself cannot be brought very close to the irradiated object. In some cases, the fiber unit can be selected accordingly, but in other cases, when the irradiated object is in a state where it is not necessarily necessary to use fibers that are expensive and have low light utilization efficiency. There is. In such a case, in a conventional device using only fibers, the unit joint 7a
Since it has an engagement structure exclusively for fibers, lens-based units cannot be joined. In this case, there was a problem in that it was not possible to meet various irradiation conditions such as small irradiation area and high illuminance, or large irradiation area and uniform illuminance. Further, when a fiber is used, there is a problem in that when the output of the light source is increased in order to obtain a desired irradiation intensity on the object to be irradiated, the heat resistance of the fiber must be taken into consideration.

This idea was made to solve the problems of the conventional methods.
Another object of the present invention is to provide an optical processing device that can connect an optical unit with a desired irradiation intensity and optimal conditions to an irradiated object of any size, shape, or structure.

[Means for Solving the Problems] In order to achieve the above object, the light processing device of this invention uses a short arc type discharge lamp and a structure in which the center of the arc of this discharge lamp is the position of the first focal point. The lamp body is equipped with an elliptical condensing mirror placed in the elliptical condenser, or a reflecting mirror that reflects the light flux from the elliptical condenser mirror and the elliptical condenser mirror. It has a structure in which a unit joint part is provided in which a plurality of types of light irradiation optical units can be freely attached to optimally irradiate light onto an object by condensing, parallel, or diverging light.

[Function] With the above structure, the optical processing device of this invention can not only use various fiber sets, but also use an optical unit that combines a lens system to focus light, or an integrator that can be used to connect an integrator and a lens. Any optical unit that combines systems to irradiate uniform light onto a large area of irradiation object can be used.

[Embodiment] Fig. 1 is a side sectional view schematically showing the main parts of an embodiment of the optical processing device of this invention, in which 9 and 11 are lenses, 10 is a reflecting mirror, and 12 is a light beam housing these optical systems. The irradiation optical unit 13 is an object to be irradiated. Further, the same reference numerals as in FIG. 3 indicate the same or corresponding parts.

In the device configured as described above, the lamp body 6
A light irradiation optical unit 12 is attached to the unit joint 7b.
Insert the mounting part and tighten screw 8 to fix it.
Therefore, if the engagement structures of the attachment portions of the light irradiation optical units to be attached to the lamp body 6 are configured to have the same shape and dimensions, mutual compatibility between the light irradiation optical units can be obtained. The light condensed in the vicinity of the unit joint 7b passes through the lens 9, reflection mirror 10, and lens 11 in the light irradiation optical unit 12, and is irradiated onto the object 13 to be irradiated. In this case, an extremely high irradiance of 2 to 3 times is obtained compared to when fibers are used.

FIG. 2 shows another embodiment of this invention, in which 15 is an integrator lens, 16 is a collimator lens, and the same reference numerals as in FIG. 1 indicate the same or equivalent parts.

In FIG. 2, if the light irradiation optical unit is a combination of an integrator lens 15, a collimator lens 16, etc., and the engagement structure of the mounting part is the same, this unit joint part 7b
It can be freely attached with screws 8 through the screws 8, and in that case, a large area of the object to be irradiated can be irradiated with light in parallel and with a uniform illuminance distribution. For example, the irradiation diameter is 50 to 200 mm, and the uniformity is ±3.
% or less was obtained. The irradiation diameter can be selected from 50 to 200 mm depending on the required irradiation diameter.

As described above, by making the mounting part 7b have a structure in which a light irradiation optical unit other than an optical fiber can be attached, the intensity of the light on the object to be irradiated, the location of the light, etc.
The light irradiation optical unit can be appropriately selected depending on the size, use, etc.

In addition, in this light processing device, each light irradiation optical unit or the lamp body is provided with a filter so that only light of a desired wavelength is irradiated depending on the purpose of light processing to the irradiated object. Of course, it is possible to cut out a lot of light.

[Effect of the invention] As explained above, this invention consists of a short-arc discharge lamp and an elliptical condenser mirror arranged so that the arc of the discharge lamp is at the first focal point, or this elliptical condenser mirror and It is equipped with a lamp body each housing a reflecting mirror that reflects the light flux from the elliptical condenser mirror, and multiple types of light irradiation optics are used to irradiate the outer wall side of the lamp body according to the size of the object to be irradiated. By providing a unit joint part with a structure that allows the unit to be attached freely, and by having a structure in which each light irradiation optical unit has the same engagement structure with respect to the unit joint part, light suitable for the object to be irradiated is provided. The irradiation optical unit can be selected as appropriate and can be installed and removed as desired. Therefore, it has become possible to perform light treatment on any location and size of the object to be irradiated, from a narrow place or a minute area such as a micro element or a minute part to a large area or a wide place.

[Brief explanation of the drawing]

FIG. 1 is a side cross-sectional view schematically showing the main parts of one embodiment of the optical processing device of this invention, FIG. 2 is a cross-sectional view schematically showing the main parts of another embodiment of the invention, and FIG. FIG. 2 is a side sectional view of a conventional optical processing device. In the figure, 1... discharge lamp, 2... elliptical collector mirror, 3...
... Reflection mirror, 6 ... Light body, 7a, 7b ... Unit joint, 8 ... Screw, 9 ... Lens, 12 ...
...Optical unit, 13...Irradiated object, 14...Optical fiber unit, 15...Integrator lens, 16...Collimator lens.

Claims (1)

[Claims for Utility Model Registration] (1) A short-arc discharge lamp and an elliptical condenser arranged so that the arc of the discharge lamp is at the first focal point, or the elliptical condenser and the elliptical condenser. It is equipped with a lamp body each housing a reflecting mirror that reflects the light flux from the light mirror, and multiple types of light irradiation optical units are attached to the outer wall side of the lamp body to optimally irradiate light onto the irradiated object. 1. A light processing device characterized in that a unit joint part having a flexible structure is provided, and each light irradiation optical unit has the same engagement structure with respect to the unit joint part. (2) The multiple types of light irradiation optical units are any of three types: an optical unit using at least one fiber, an optical unit that combines a lens system, and an optical unit that combines an integrator and a lens system. The optical processing device according to claim (1) of the utility model registration, characterized in that it is one optical unit.