KR20080008982A - Lighting equipment - Google Patents

Abstract

Lighting equipment is provided to control lighting range of a light irradiated to a target simply and efficiently. An optical fiber part(12) emits an incident light from a covered end. An outer barrel(11) has a reflection plane capable of reflecting the light and is inserted into the outside of the optical fiber part. A relative transportation part transports a part of the outer barrel the position pushed from the end of the optical fiber part.

Description

Irradiation Device {LIGHTING EQUIPMENT}

The present invention relates to an irradiation apparatus using an optical fiber.

Background Art Conventionally, various kinds of irradiation apparatuses using optical fibers have been proposed, and have been widely used as those capable of irradiating light to various places preferably (see Patent Document 1, for example).

As shown in the above document, the light is led from the light source to the irradiated tip portion by the optical cable, and light is preferably emitted from the irradiated tip portion. By providing a plurality of lenses at the tip of the irradiation and using special means for adjusting the relative distance between the lenses, it is possible to adjust the focus or irradiation range of the irradiation light to irradiate the object preferably. .

[Patent Document 1] Japanese Patent Application Laid-Open No. 2001-117021

However, in the above-mentioned patent document, when irradiating the light of the optical fiber to the object appropriately, as described above, the relative distance of the plurality of lenses provided at the tip of the irradiation apparatus is adjusted so that the light having the appropriate irradiation range is applied to the object. Investigation is indispensable. In other words, as long as the lens is required to irradiate the object preferably, work on the cost of manufacturing the lens and the fine adjustment of the position of the lens are inevitably required.

SUMMARY OF THE INVENTION The present invention focuses on such a problem, and provides an irradiation apparatus that can easily and effectively adjust the irradiation range of light to be irradiated to an object while effectively avoiding adopting a lens.

In order to achieve the above object, the present invention seeks the following means. That is, the irradiation apparatus according to the present invention has an optical fiber portion that emits light incident from a base end from a tip, and an optical fiber having a reflection surface capable of reflecting light in an inner surface thereof. An outer cylinder fitted to the outside and a relative moving portion capable of relatively moving a portion of the outer cylinder to the position pushed out from the base end or the tip of the optical fiber part.

Such a configuration makes it possible to adjust the irradiation range of light without using a lens. That is, since the lens is not used, the irradiation apparatus itself can be manufactured at low cost by effectively reducing the cost of the lens and the mounting process of the lens.

And when irradiating light to an object, if it has an outer cylinder of the incidence side which can move to the position pushed out from the base end of an optical fiber part, it will gradually weaken light from the edge part of an irradiation range, and will emphasize the center part of an irradiation range. The light which shows the visual effect which can be obtained can be obtained. On the other hand, if it has the outer cylinder of the emission side which can move to the position pushed out from the tip of an optical fiber part, the light which concentrated the light effectively in the center part of an irradiation range will be obtained.

In particular, in order to irradiate light in a form of blurring the edges in stepless illumination as it goes to the edge of the irradiated light, in other words, a diffuse reflection surface capable of reflecting light on the reflective surface It is preferable to set it as.

And as a specific aspect which can preferably comprise an optical fiber part, what has an optical fiber main body which can permeate | transmit light, and what has an inner cylinder which coat | covers this optical fiber main body is mentioned. In addition, when the optical fiber main body is composed of a plurality of optical fiber elements converged, various types of optical fiber parts can be configured by adjusting the number of optical fiber elements bundled together.

And in order to implement the above-mentioned relative moving part by a simple structure, it is preferable to comprise this relative moving part by the male threaded surface provided in the outer surface of an inner cylinder, and the female threaded surface provided in the inner surface of an outer cylinder.

According to the present invention, it is possible to effectively and effectively control the irradiation range of the light to be irradiated to the object while effectively avoiding the adoption of the lens and effectively reducing the cost and mounting process of the lens.

EMBODIMENT OF THE INVENTION Hereinafter, one Embodiment of this invention is described with reference to drawings.

As shown in FIG. 1 and FIG. 2, the display case A according to the present embodiment is installed in, for example, an interior of a museum, a museum, and the like, and an exhibition space A10 covered by a plurality of transparent plates A11. Various exhibits (T) can be displayed inside. 2 schematically shows the interior of the box A2 described later.

As shown in FIG. 2, the display case A includes a display unit A1 capable of forming the display case A10 covered by the plurality of transparent plates A11 and the display space A10 from below. It mainly includes the box body A2 to support. And the box A2 below the floor A12 of the exhibition space A10 has the lighting installation A20 provided with the irradiation apparatus 1 mentioned later. In addition, inside the box A2, in addition to the lighting equipment A20, air conditioning equipment for controlling the temperature and humidity in the display base A10 is incorporated, but the detailed description thereof will be omitted. do.

Here, the irradiation apparatus 1 provided with the display case A which concerns on this embodiment is the optical fiber part 12 which radiates the light incident from the base end from the front end, and can reflect light in the inner surface. The incidence-side outer cylinder 13 and the outgoing-side outer cylinder 11, which are outer cylinders that are externally fitted to the optical fiber portion 12 with a reflecting surface, and a part of these incidence-side outer cylinder 13 and the outgoing-side outer cylinder 11, It has the irradiation apparatus 1 mentioned later equipped with the relative moving part S which can move relatively to the position pushed out from the base end or the tip of (12), It is characterized by the above-mentioned.

Hereinafter, the specific structure of the irradiation apparatus 1 with the structure of illumination installation A20 is explained in full detail.

As shown in FIG. 2, the lighting installation A20 includes a light source A21 mounted inside the box A2, an optical cable A22 that transmits light from the light source A21, and an optical cable ( Reflecting apparatus A23 for mainly irradiating the light from A22), and in this embodiment, irradiating the light from the irradiating apparatus 1 toward the display object T correctly in this embodiment. Equipped with.

The light source A21 can emit light of a predetermined intensity based on power by a power source (not shown). The specific structure of the light source A21 is not limited here, For example, various things, such as a halogen lamp and LED, can be employ | adopted. In addition, in this embodiment, although the structure which connects two optical cables A22 and the irradiation apparatus 1 with respect to one light source A21 is shown in FIG. 2, the light connected to the light source A21 is shown. Detailed specifications such as the number of cables A22 and the position of the irradiation device 1 are not limited.

In this embodiment, the optical cable A22 mainly uses an existing optical cable having flexibility. Specifically, the light source connection part A221 connected to the light source A21, the optical cable part A222 which forms the main part of the optical cable A22, and the external cylinder connection part connected to the incident side outer cylinder 13 mentioned later. (A223) The optical cable A22 part covers the cable main body which made diameter 3mm diameter by the cover of resin by collecting a plurality of optical fiber elements in detail. The outer cylinder connecting portion A223 is configured to be connected while allowing the rotational and vertical movement of the incident side outer cylinder 13. In addition, the optical cable A22 which concerns on this embodiment is not limited to the above-mentioned structure, For example, it does not specifically limit also in the diameter of a cable main body, etc., It can employ | adopt in various specifications.

The reflecting apparatus A23 reflects the outer cylinder mounting portion A231 for attaching the output side outer cylinder 11 of the irradiation apparatus 1 described later in the vicinity of the bottom A12 and the irradiation light irradiated from the irradiation apparatus 1. It has a reflecting plate A232 and a reflecting plate cover A233 which protrudes from the bottom A12 surface and can mount the reflecting plate A232 so that angle change is possible.

However, the irradiation apparatus 1 which concerns on this embodiment has the optical fiber part 12 which emits the light incident from the base end from the front-end | tip, and the incident side as a reflecting surface which can reflect light in an inner surface as mentioned above. Incident-side outer cylinder 13 and exit-side outer cylinder 11, which are outer cylinders having an external thread surface 132 and an exit-side female thread surface 112, which fit outside the optical fiber unit 12, and these inward-side outer cylinder 13 and exit It is characterized by including the relative moving part S which can move a part of the side outer cylinder 11 to the position pushed out from the base end or the front end of the optical fiber part 12. It is characterized by the above-mentioned.

Hereinafter, the structure of the irradiation apparatus 1 is demonstrated concretely.

As shown in FIG. 2 and FIG. 3, the irradiation apparatus 1 is comprised from the emission side outer cylinder 11, the optical fiber part 12, and the incident side outer cylinder 13 from the upper side of illustration.

As shown in FIG. 3, the exit-side outer cylinder 11 includes, for example, a cylindrical exit-side outer cylinder main body 110 made of aluminum and an upper portion of the exit-side outer cylinder main body 110. The fixing part 111 fixed to the outer cylinder mounting part A231, and the output side female threaded surface 112 which comprises the diffuse reflection surface which has an unevenness for diffusely reflecting light installed in the inner surface of the emission side outer cylinder main body 110, Have.

As shown in FIG. 3, the optical fiber part 12 is the cylindrical inner cylinder 120 which consists of brass, the external thread surface 121 provided in the surface of the inner cylinder 120, and the inner cylinder 120, for example. The optical fiber main body 122 which filled the optical fiber element 122a of 50 micrometers diameter, for example in the state which bundled 3000, for example in the inside of the inside is included. In this embodiment, the inner diameter of the inner cylinder 120 is set to 3 mm. In addition, the diameter of the inner cylinder 120 is not limited to this 3 mm, For example, even if it is 4 mm or 6 mm, light can be irradiated preferably.

As shown in FIG. 3, the incident side outer cylinder 13 is substantially the same as the exit side outer cylinder 11 mentioned above, for example, the cylindrical incident side outer cylinder main body 130 which consists of aluminum, and an incident side outer cylinder main body. For diffuse reflection of light, which will be described later, provided on the inner surface of the incidence-side outer cylinder main body 130 and the optical cable connection portion 131 connected to the outer cylinder connection portion A223 of the optical cable A22 in the lower portion of the 130, It has the incidence side female threaded surface 132 which comprises the diffuse reflection surface which has an unevenness | corrugation.

And the relative moving part S is the incident which the external threaded surface 121 which the optical fiber part 12 mentioned above, the exit-side female threaded surface 112 which the exit side outer cylinder 11 has, and the incident side outer cylinder 13 have. The side female threaded surface 132 is comprised. With this configuration, the adjustment of the emission side dimension d1 can be accurately adjusted by a so-called screw feed operation of rotating the inner cylinder 120 with respect to the exit side outer cylinder 11 fixed to the reflector A23 described above. Is letting go. In addition, the incident side dimension d2 is adjusted by the screw feed operation by rotating the incident side outer cylinder 13 with respect to the inner cylinder 120. Moreover, since the external cylinder connection part A223 of the optical cable A22 part and the optical cable connection part 131 of the incidence side external cylinder 13 are connected in the state allowed to rotate relatively, by the operation of the relative movement part S, Even if the incident side outer cylinder 13 is rotated, the problem that the optical cable A22 is rotated is effectively excluded. Here, in this specification, the dimension which the exit side female-threaded surface 112 pushed out from the front-end | tip of the inner cylinder 120 by operating this relative moving part S is made into the exit side dimension d1. Moreover, the dimension which the incident side female-threaded surface 132 pushed out from the base end of the inner cylinder 120 by the same relative moving part S is made into the incident side dimension d2.

Next, in the irradiation apparatus 1 which has such a structure, the irradiation apparatus 1 is modeled about the irradiation range of irradiation light and the shape of irradiation light by adjusting the emission side dimension d1 and the incident side dimension d2. A description will be given with reference to FIGS. 4 to 7, which are operation explanatory diagrams, and FIGS.

FIG. 4 shows the irradiation apparatus 1 when the incident side outer cylinder 13 and the exit side outer cylinder 11 are not moved from the inner cylinder 120 and the exit side dimension d1 and the incident side dimension d2 are not provided. And the shape of the irradiation light irradiated from this irradiation apparatus 1 is shown typically. In this case, as shown in FIG. 10, irradiation light can be irradiated to a wide range. In addition, the irradiation light in this case has an irradiation range of 500 mm in diameter when the distance to the exhibit T to be irradiated is set to 300 mm (FIG. 8).

Next, FIG. 5 shows the irradiation apparatus 1 and irradiation in the case where the emission side dimension d1 is provided by moving only the emission side outer cylinder without moving the incident side outer cylinder 13 from the state shown in FIG. The shape of light is shown typically. In this case, although the irradiation range is narrower than that in FIG. 10, irradiation light in which light is effectively concentrated in the center portion of the irradiation range as shown in FIG. 11 can be obtained.

On the other hand, FIG. 6 shows the irradiation apparatus 1 in the case where the incident side dimension d2 is provided by moving only the incident side outer cylinder 13 without moving the exit side outer cylinder 11 from the state shown in FIG. And the shape of the irradiation light is shown schematically. In this case, although the irradiation range is narrower than that in FIG. 10, as shown in FIG. 12, the irradiation light exhibits a visual effect that can gradually weaken the light from the edge of the irradiation range to emphasize the central portion of the irradiation range. You get

7 shows the irradiation apparatus 1 and the irradiation light in the case where the incident side outer cylinder 13 and the exit side outer cylinder 11 are moved together to provide the incident side dimension d2 and the exit side dimension d1 side by side. The shape is typically shown. As shown in FIG. 13, the irradiation light in this case is a time point at which the light can be gradually weakened from the edge of the irradiation range to emphasize the center part of the irradiation range while irradiating light effectively to the center portion of the irradiation range. Irradiation light showing an effect can be obtained.

Moreover, of course, by adjusting the incident side dimension d2 and the exit side dimension d1 to arbitrary dimensions, the irradiation light which varied the shape of the irradiation range and the edge part of an irradiation range can be obtained, and a display object Irradiation light appropriate to the size and shape of (T) can be irradiated.

By setting it as the above structure, the irradiation apparatus 1 which concerns on this embodiment can adjust the irradiation range of light, without using a lens. That is, since the lens is not used, the irradiation apparatus 1 itself can be manufactured at low cost by effectively reducing the cost of attaching the lens and the step of attaching the lens.

Moreover, since this irradiation apparatus 1 has provided the incident side outer cylinder 13 which can move to the position pushed out from the base end of the optical fiber part 12, and can form an incident side dimension d2, such an incident side outer cylinder By (13), by appropriately adjusting the incident side dimension d2, the irradiation range of the irradiation light can be preferably adjusted. In addition, as shown in the photograph shown in FIG. 11, it is possible to obtain irradiation light showing visual effects that can gradually weaken the light from the edge portion of the irradiation range to emphasize the central portion of the irradiation range.

On the other hand, since the exit side outer cylinder 11 which moves to the position pushed out from the tip of the optical fiber part 12 and forms the exit side dimension d1 is provided, the exit side outer cylinder 11 is also preferably The scope of the survey can be adjusted. In addition, as shown in the photograph shown in FIG. 12, irradiation light in which light is effectively concentrated in the center portion of the irradiation range can be obtained. And when the incident side dimension d2 and the exit side dimension d1 are provided by the incident side outer cylinder 13 and the exit side outer cylinder 11, the irradiation light of the shape which has the characteristic of each irradiation light mentioned above is obtained. Can be. Moreover, by suitably adjusting this incidence side dimension d2 and the emission side dimension d1, the irradiation light of various irradiation ranges and patterns can be selected suitably according to the display object T, etc., and can be obtained.

In addition, in this embodiment, the incident side female threaded surface 132 and the emitting side female threaded surface 112 which can diffusely reflect light are provided as reflecting surfaces provided in the incident side outer cylinder 13 and the exit side outer cylinder 11. . With such a configuration, by illuminating the light in the inside of the incident side outer cylinder 13 or the exit side outer cylinder 11, the illuminance is reduced steplessly from the center of the irradiation light to the edge, in other words, the shape that blurs the edge. It is possible to irradiate irradiated light.

In addition, the optical fiber main body 122 capable of transmitting light to the optical fiber unit 12 and an inner cylinder 120 covering the optical fiber main body 122 are preferably provided in the inner cylinder 120. I can keep it. In addition, by tying 3000 optical fiber elements 122a which collected the optical fiber main body 122, specifically, optical fiber elements 122a having a diameter of 50 µm into the inner cylinder 120, an inner cylinder having a diameter of 3 mm ( The inside diameter of 120 is preferably stored. In addition, by adjusting the number of bundles of the optical fiber elements 122a, even if the inner diameter of the inner cylinder 120 is 4 mm or 6 mm, the desired optical fiber elements 122a are bundled and used. By this, the optical fiber part 12 can be comprised preferably.

And the external threaded surface 121 which provided the relative moving part S which can adjust the relative distance between the optical fiber part 12, the entrance side outer cylinder 13, and the exit side outer cylinder 11 on the outer surface of the inner cylinder 120. ) And the incidence side female threaded surface 132 and the outlet side female threaded surface 112 are realized by a simple configuration. Moreover, also operation | movement of the relative moving part S can be performed by the simple operation | movement called what is called screw feed operation which only rotates the optical fiber part 12 or the incident side outer cylinder 13. FIG. In addition, by this structure, the incident side female threaded surface 132 and the exit side female threaded surface 112 exhibit the function as the diffuse reflection surface which can diffusely reflect the above-mentioned light as it is.

As mentioned above, although embodiment of this invention was described, the specific structure of each part is not limited only to embodiment mentioned above, A various deformation | transformation is possible in the range which does not deviate from the meaning of this invention.

For example, in the above embodiment, the reflection surface is a female threaded surface, and the female threaded surface is also shown to function as a relative moving part. For example, a separate ratchet structure or the like is adopted as the relative moving part. As the diffuse reflection surface, an emboss surface may be used, or a special material capable of diffuse reflection of light may be attached or applied.

In addition, the specific structure of each part is not limited to the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the meaning of this invention.

EXAMPLE

Hereinafter, although the Example of this invention is described, this invention is not limited to this Example.

<Irradiation light measurement test>

The irradiation range of irradiation light by the irradiation apparatus which concerns on the said embodiment was measured.

<Test method>

Using the irradiation apparatus according to the above embodiment, the incident side outer cylinder and the exit side outer cylinder were respectively moved relative to the inner cylinder of the optical fiber portion, and the irradiation range of the irradiation light when the incident side dimensions and the exit side dimensions were set respectively was measured, respectively. .

The measurement of the irradiation range measured the diameter of the irradiation light projected on the screen which installed 300 mm apart from the edge part of the emission side outer cylinder. In addition, this diameter shall be measured about the part which has a fixed intensity | strength in the inside and center part of irradiation light.

<Test result>

The irradiation range of the irradiation light when the incident side dimension and the exit side dimension are set respectively is shown in a table in FIGS. 8 and 9. Moreover, each irradiation light is shown as a photograph in FIGS. 10-13. In addition, the letters a to g shown on the right side of the test tool in FIG. 8 correspond to the letters attached to the photographs shown in FIGS. 10 to 13.

From the numerical values shown in FIG. 8 and FIG. 9, as the incident side dimension or the exit side dimension becomes large, the irradiation range becomes small. As shown in Fig. 11, the irradiation light of the test sphere in which only the emission-side dimension is formed is shown in Fig. 11, so that the irradiation light in which the light is effectively concentrated in the center of the irradiation range can be obtained. It is. On the other hand, as shown in FIG. 12, the irradiation light of the test tool which formed only the incident side dimension gradually weakens light from the edge of an irradiation range, irradiating light effectively to the center part of an irradiation range, as the photograph shown in the same figure. Thus, it is possible to obtain irradiation light showing a visual effect that can emphasize the central portion of the irradiation range. Moreover, as shown in FIG. 13, the irradiation light which concerns on the test fixture provided with each of the incident side dimension and the emission side dimension was made to weaken light gradually from the edge part of an irradiation range, irradiating light effectively to the center part of an irradiation range. Irradiation light having a shape, that is, irradiation light having a shape having the features relating to the irradiation light shown in FIGS. 11 and 12.

In particular, in Fig. 11, Fig. 12 and Fig. 13, the incident light tends to be irradiated light such as so-called "blurred" in which the irradiation light weakens the intensity steplessly from the center portion to the edge portion. In the incident side female threaded surface of the outer cylinder or the exited female threaded surface of the exiting outer cylinder, light reflection can be considered. Specifically, this tendency is particularly remarkable in Figs. 12 and 13 in which the incidence side dimension is generally provided, so that the incidence side dimension is formed so as to make the edge of the irradiation light as so-called "blurred". It was found to represent more strongly.

As mentioned above, it turns out that according to this Example, the irradiation apparatus which concerns on this embodiment can adjust the irradiation range of irradiation light preferably, without using a lens at all. In addition, if the exit side dimension and the incident side dimension are appropriately adjusted, irradiation light having various shapes can be obtained, and thus it is found that it is possible to irradiate the irradiation light having a visual effect that cannot be obtained only by adjusting the lens. It became.

BRIEF DESCRIPTION OF THE DRAWINGS The external view of the display case incorporating the irradiation apparatus which concerns on one Embodiment of this invention.

2 is an explanatory diagram of the configuration according to the embodiment;

3 is an explanatory diagram of a configuration illustrating the irradiation apparatus according to the embodiment;

4 is an explanatory diagram of an operation of the copper irradiation apparatus;

5 is the same as above.

6 is the same as above.

7 is the same as above.

8 is a table showing test results according to an embodiment of the present invention.

9 is the same as above.

10 is a diagram showing irradiation light according to an embodiment and example of the present invention.

11 is as above.

12 is the same as above.

13 is the same as above.

<Description of the code>

One … Probe

11. External cylinder, external cylinder of exit side

112. Reflecting surface, diffuse reflection surface, female thread surface (output female side)

12... Optical fiber part

122... Fiber optic body

120... Inner tube

121. Male thread

122... Fiber optic body

122a. Fiber optic element

13. External cylinder, external cylinder on the incident side (incident side external cylinder)

132. Reflective surface, diffuse reflection surface, female thread surface (incident side female thread surface)

S… Relative moving parts

Claims (7)

An optical fiber section for emitting light incident from the base end from the tip; An outer cylinder externally fitted to the optical fiber unit with a reflecting surface capable of reflecting light on the inner surface thereof; And a relative moving part capable of moving a part of the outer cylinder relative to the position pushed out from the base end or the tip of the optical fiber part. The method according to claim 1, The irradiation apparatus which has an outer cylinder on the incidence side which can move to the position pushed out from the base end of the said optical fiber part. The method according to claim 1 or 2, The irradiation apparatus which has an outer cylinder of the emission side which can move to the position pushed out from the tip of the said optical fiber part. The method according to claim 1, 2 or 3, The irradiation apparatus which makes the said reflection surface the diffuse reflection surface which can diffuse light. The method according to claim 1, 2, 3 or 4, An irradiation apparatus which has an optical fiber main body which can permeate | transmit this optical fiber part, and an inner cylinder which coat | covers this optical fiber main body. The method according to claim 5, The irradiation apparatus which comprises the said optical fiber main body with the several optical fiber element which converged. The method according to claim 5 or 6, An irradiation apparatus comprising the male screw surface provided on the outer surface of the inner cylinder and the female thread surface provided on the inner surface of the outer cylinder.

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