WO2018230540A1 - Illumination device - Google Patents

Illumination device Download PDF

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Publication number
WO2018230540A1
WO2018230540A1 PCT/JP2018/022336 JP2018022336W WO2018230540A1 WO 2018230540 A1 WO2018230540 A1 WO 2018230540A1 JP 2018022336 W JP2018022336 W JP 2018022336W WO 2018230540 A1 WO2018230540 A1 WO 2018230540A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
shielding member
light sources
lighting device
row
Prior art date
Application number
PCT/JP2018/022336
Other languages
French (fr)
Japanese (ja)
Inventor
一乃大 八木
Original Assignee
シーシーエス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シーシーエス株式会社 filed Critical シーシーエス株式会社
Priority to AU2018282844A priority Critical patent/AU2018282844B2/en
Priority to EP18817506.1A priority patent/EP3640526A4/en
Priority to JP2019525442A priority patent/JP7217702B2/en
Publication of WO2018230540A1 publication Critical patent/WO2018230540A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/15—Thermal insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/001—Arrangement of electric circuit elements in or on lighting devices the elements being electrical wires or cables
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements

Definitions

  • the present invention relates to a lighting device.
  • an illuminating device including a light source using a filament such as a halogen lamp is superior to that using an LED light source in that it emits light having a wide wavelength region and high intensity up to the infrared region.
  • a filament such as a halogen lamp
  • an LED light source in that it emits light having a wide wavelength region and high intensity up to the infrared region.
  • it is used together with an infrared camera for contamination inspection and appearance inspection.
  • Patent Document 1 there is a lighting device in which a plurality of halogen lamps in which filaments are housed in a cylindrical housing whose tip is sealed are arranged in a line. Specifically, in this lighting device, an elliptical reflecting mirror is provided behind each halogen lamp, and a reflecting plate is provided in front, so that the light emitted from each halogen lamp is condensed and reflected toward the object. It is configured.
  • the light from the filament is refracted in an unexpected direction at the sealed portion, and the condensing property of the light emitted from the halogen lamp and the target object It is difficult to control the uniformity of the irradiated light.
  • the inventor of the present application has developed a configuration in which the cylindrical containers with the tips sealed are arranged in a row in a state of being tilted, and the light emitted from the outer peripheral surface of the container is guided to the object. I thought in the middle.
  • the light from the filament is emitted from the outer peripheral surface of the container without being refracted in an unexpected direction and guided to the object. It becomes easy to control the uniformity.
  • a light source using a filament as described above is configured to connect a container for accommodating a filament to a socket and supply current to the filament through the socket.
  • the socket is irradiated with light in a wide wavelength region including infrared wavelengths.
  • the socket is damaged by heat, or light of a specific wavelength among the light from the filament is absorbed by the socket, and the intensity distribution of the light irradiated to the object is undulated.
  • a problem is also a problem that occurs when the container is connected to a connected portion such as an electric cable or a relay board without using a socket.
  • the present invention has been made to solve the above problems all at once, and in an illuminating device including a light source using a filament, it is easy to control the light condensing property and uniformity of light irradiated to an object. At the same time, it is possible to protect a connected portion such as a socket from heat, and to make the intensity distribution of light applied to the object flattened as a main problem.
  • the illumination device includes a plurality of light sources arranged in one or a plurality of rows, and a casing that accommodates the light sources and is formed with a light extraction port for taking out light from the light sources.
  • the light source has a light emitting part in which a filament is accommodated in a cylindrical container and a connected part to which the light emitting part is connected, and is emitted from an outer peripheral surface of the container.
  • a shielding member that covers at least a part of the connected part and shields light emitted from the light emitting part and directed to the connected part. It is characterized by having.
  • the “light toward the connected portion” here includes not only light directly traveling from the light emitting portion toward the connected portion but also light traveling toward the connected portion after being reflected by surrounding members.
  • the tip of the container is sealed. Even so, the light from the filament is emitted from the outer peripheral surface of the container without being refracted in an unexpected direction and guided to the object. Thereby, it becomes easy to control the condensing property and uniformity of the light irradiated to the object.
  • the shielding member covers at least a part of the connected portion and shields light traveling from the light emitting portion to the connected portion, the connected portion can be protected from heat, and light of a specific wavelength is also emitted.
  • the intensity distribution of the light applied to the object can be flattened without being absorbed by the connected portion.
  • the shielding member covers at least a part of the electric cable and is emitted from the light emitting part to the electric cable. It is preferable to block the light that goes.
  • the "light which goes to an electric cable” here contains not only the light which goes to an electric cable directly from a light emission part but the light which goes to an electric cable after reflecting with a surrounding member. With such a configuration, the electric cable can be protected from heat.
  • the shielding member has a long shape extending along the arrangement direction of the light sources and covers the connected portions of the light sources included in one row. With such a configuration, for example, the number of parts can be reduced and the assembly of the apparatus is easy as compared with a configuration in which a shielding member is provided for each light source.
  • the shielding member is fixed to the casing, and the connected portion is attached to the shielding member.
  • the shielding member is fixed to the casing, and the connected portion is attached to the shielding member.
  • the shielding member forms an accommodation space that accommodates the connected portion and allows air to flow in and out.
  • the air inside the casing and the air outside the casing flow into the housing space, so that the connected portion can be cooled by this air, and the connected portion is more reliably protected from heat. Can do.
  • the plurality of light sources arranged in a row are arranged in a posture in which the outer peripheral surface of the container faces the light extraction port.
  • Specific embodiments include a configuration in which a plurality of the light sources arranged in a row are arranged in a posture in which the arrangement direction and the axial direction of the container are orthogonal to each other.
  • the plurality of light sources arranged in a row are arranged in a posture in which the tips of the containers are in the same direction.
  • the shielding member and the electric cable can be concentrated on one side, and the overall configuration can be simplified and the wiring can be facilitated.
  • the plurality of light sources arranged in a row are arranged in a posture in which the tips of the containers of the light sources adjacent to each other along the arrangement direction are opposite to each other.
  • light sources arranged in the opposite direction can be arranged between light sources arranged in a certain direction, so that the arrangement interval of the light sources can be reduced, and line light Illuminance unevenness in the longitudinal direction can be reduced.
  • the light source emits light including an infrared wavelength
  • the shielding member is formed of a material that reflects infrared wavelength light.
  • an illuminating device including a light source using a filament
  • the perspective view which shows the structure of the illuminating device of this embodiment The perspective view which shows the structure in the casing of the illuminating device of this embodiment.
  • the top view which shows the structure and arrangement
  • Sectional drawing which shows the structure in the casing of the illuminating device of this embodiment.
  • the perspective view which shows the structure in the casing of the illuminating device of this embodiment.
  • the top view which shows the structure of the light source in other embodiment.
  • the perspective view which shows the periphery structure of the light source in other embodiment.
  • the illuminating device 100 is used, for example, for carrying out a foreign substance contamination inspection, an appearance inspection, and the like using an infrared camera. It is a surface light emitting device that emits light).
  • an infrared camera for example, a hyperspectral camera that includes a spectroscope and can acquire information in a wide wavelength region is preferable, but various other types can be used.
  • the lighting device 100 includes a casing 10 in which a light extraction port X is formed and a plurality of light sources 20 accommodated in the casing 10.
  • FIG. 2 shows the internal configuration of the casing 10, but the description of an electric cable EL described later is omitted.
  • the casing 10 has, for example, a substantially rectangular parallelepiped shape, and the light extraction port X is formed on one surface (the upper plate 11).
  • the light extraction port X is provided with a diffusing plate 30 having transparency.
  • the light extraction port X may be provided with a light transmission window that transmits light without diffusing, instead of the diffusion plate 30.
  • a heat radiating member 40 such as a heat radiating fin for radiating heat from the light source 20 is provided on the back surface (outer surface) of the bottom plate 12 opposite to the light extraction port X, and the surface (inner surface) of the bottom plate 12 is provided.
  • the reflecting plate 50 is provided on at least a part of the inner surface of the side plate 13 of the casing 10.
  • the bottom plate 12 and the side plate 13 are not necessarily provided with the reflecting plate 50.
  • the light sources 20 are arranged in a row in the casing 10 as shown in FIG. 2. Specifically, as shown in FIG. 3, the filament 21 is placed in a cylindrical container 22 whose tip is sealed. This is a so-called halogen lamp having a light emitting portion 20A accommodated and a socket 20B as a connected portion to which the light emitting portion 20A is connected.
  • the filament 21 is formed by winding a conducting wire, and emits light while generating Joule heat when a current is supplied.
  • the filament 21 here extends in a direction perpendicular to the axial direction of the container 22, and an introduction line 23 extends from both ends thereof.
  • Each of these lead wires 23 is connected to a terminal 24 drawn to the outside of the container 22, and the light emitting portion 20A and the socket 20B are connected by inserting each terminal 24 into the socket 20B.
  • the container 22 is called a glass bulb, and here has a cylindrical tapered shape, and a tip 25 formed when the tip opening is sealed by glass fusion or the like at the tip. Is provided. The rear end opening is sealed by a flat sealing member 26.
  • the socket 20B has a block shape in which an insertion port (not shown) to which the terminal 24 is connected is formed, and here, the light emitting unit 20A is configured to be inserted along the axial direction of the container 22.
  • the socket 20B has a cylindrical shape, for example, larger in diameter than the housing 22 and protrudes outside the housing 22 when viewed from the axial direction of the housing 22 and faces the light emitting portion 20A.
  • the insertion port is formed in the mounting surface 27 to be performed.
  • An electrical cable EL for supplying current to the filament 21 is connected to the socket 20B. As shown in FIG. 1, the electrical cable EL is connected to the side plate 13 of the casing 10 in a state where, for example, a plurality of cables are bundled. It is drawn out of the casing 10 from the formed through hole 1h and connected to a power source (not shown).
  • each light source 20 is arranged in a posture in which the axial direction of the container 22 and the plane direction of the light extraction port X (direction perpendicular to the normal direction of the light extraction port X) are parallel. .
  • the axial direction of the container 22 is not necessarily parallel to the planar direction of the light extraction port X, and may be inclined with respect to the light extraction port X.
  • the light sources 20 arranged in a row are arranged such that the arrangement direction and the axial direction of the container 22 are orthogonal, that is, the filaments 21 of the light sources 20 extend along the arrangement direction.
  • the axial directions of the containers 22 are parallel to each other.
  • the light sources 20 arranged in a row are in a posture in which the tips of the containers 22 are in the same direction, that is, in a posture in which the tips and rear ends of the containers 22 are linearly positioned along the arrangement direction.
  • the filament 21 does not necessarily extend along the arrangement direction, and may extend in a direction inclined with respect to the arrangement direction. Moreover, it is not always necessary that all the axial directions of the containers 22 are parallel to each other.
  • the illumination device 100 further includes a shielding member 60 that covers at least a part of the socket 20B and shields light emitted from the light emitting unit 20A and traveling toward the socket 20B. It becomes.
  • the shielding member 60 is made of a material that reflects infrared light without transmitting it.
  • the reflection includes specular reflection and diffuse reflection.
  • the shielding member 60 covers at least a part of the socket 20 ⁇ / b> B between the mounting surface 27 of the socket 20 ⁇ / b> B and the housing 22 and covers the mounting surface 27. It has a long shape extending along 20 arrangement directions.
  • the shielding member 60 is provided for each row of the light sources 20 arranged in a row, and each shielding member 60 is configured to cover the sockets 20B of all the light sources 20 included in the corresponding row. .
  • the shielding member 60 forms an accommodation space S for accommodating the socket 20B, and has a rectangular shape with a transverse section opened downward. Specifically, as shown in FIG. 4, this includes a front wall 61 that covers the mounting surface 27 of the socket 20B, a rear wall 62 that faces the front wall 61 and is provided behind the socket 20B, and a front wall 61. An upper wall 63 is provided between the rear wall 62 and provided above the socket 20B.
  • the front wall 61, the rear wall 62, and the upper wall 63 may be integrally formed or may be separate members, but here the front wall 61 and the upper wall 63 are integrally formed. While forming, the rear wall 62 is made separate from these.
  • the shielding member 60 does not necessarily need to have the front wall 61, the rear wall 62, and the upper wall 63. If it has at least the front wall 61, it will be shown in the last row of FIG.2 and FIG.4.
  • the shielding member 60 may not have the upper wall 63, or may not have the upper wall 63 and the rear wall 62 although not shown.
  • the front wall 61 is a flat plate having a through hole 6h through which the light emitting unit 20A is inserted.
  • a plurality of through holes 6h are formed at regular intervals along the longitudinal direction, for example. These through holes 6h are formed at positions corresponding to the light emitting portions 20A of the respective light sources 20 arranged in a line, and the front wall 61 is formed by passing each through hole 6h from the tip of the corresponding light source 20. Is arranged in a state of facing the mounting surface 27 of the socket 20B.
  • the upper wall 63 is provided integrally with the front wall 61 as described above, the upper wall 63 is attached to the socket 20B by placing the front wall 61 close to the mounting surface 27 of the socket 20B. Is disposed above.
  • the rear wall 62 is a flat plate provided in parallel with the front wall 61, and a flange portion that is bent along the bottom surface of the casing 10 is formed at a lower end portion thereof.
  • the shielding member 60 is fixed to the casing 10 by attaching the flange portion to the bottom surface of the casing 10 with screws or the like.
  • the socket 20B is attached to the surface of the rear wall 62 facing the front wall 61 via a screw or the like, and the shielding member 60 is also used for fixing the socket 20B or positioning the socket 20B.
  • the space surrounded by the front wall 61, the rear wall 62, and the upper wall 63 described above is the accommodation space S, and the accommodation space S here is configured to allow air to flow in and out without being sealed. .
  • the accommodation space S is configured to flow into and out of S.
  • the shielding member 60 in the longitudinal direction is opened, and the other end is partially blocked by the reflection plate 50 described above.
  • the reflecting plate 50 is formed with a through hole 5 h for allowing the electric cable EL to pass therethrough and wired between the reflecting plate 50 and the inner surface of the casing 10.
  • the electric cable EL can be inserted into the accommodation space S through the through hole 5h. That is, the accommodation space S of the present embodiment accommodates at least a part of the electric cable EL, and the shielding member 60 covers at least a part of the electric cable EL and is emitted from the light emitting unit 20A to the electric cable EL. It is configured to shield the light that is heading.
  • the light source 20 is disposed in such a posture that the light emitted from the outer peripheral surface 221 of the container 22 is extracted from the light extraction port X. Therefore, the filament The light from 21 is emitted from the outer peripheral surface 221 of the container 22 without being refracted in an unexpected direction and guided to the object. Thereby, it becomes easy to control the condensing property and uniformity of the light irradiated to the object.
  • the shielding member 60 covers the socket 20B and shields the light emitted from the light emitting unit 20A, the socket 20B can be protected from heat, and light of a specific wavelength is absorbed by the socket 20B.
  • the intensity distribution of the light applied to the object can be made flat.
  • the shielding member 60 covers the electric cable EL and shields the light emitted from the light emitting portion 20A, the electric cable EL can be protected from heat.
  • the shielding member 60 is a long one extending along the arrangement direction of the light sources 20 and the shielding member 60 is provided corresponding to each row, the shielding member 60 is provided for each light source 20. Compared to the configuration, the number of parts is small and the assembly of the apparatus is easy.
  • the shielding member 60 is fixed to the casing 10 and the socket 20B is attached to the shielding member 60, there is no need to separately provide a member for fixing or positioning the socket 20B, and the device configuration Can be simplified.
  • the accommodation space S is configured to allow air to flow in and out, the air in the casing 10 and the air outside the casing 10 flow into the accommodation space S. Thereby, the socket 20B can be cooled and the socket 20B can be more reliably protected from heat.
  • the plurality of light sources 20 arranged in a row are arranged in a posture in which the outer peripheral surface 221 of the container 22 faces the light extraction port X, the light from the filament 21 seals the container 22. Even if the light is refracted in an unexpected direction, the light extracted from the light extraction port X is hardly affected, and the light collecting property and uniformity of the light extracted from the light extraction port X can be further improved. .
  • the shielding member 60 and the electric cable EL are collected on one axial side of the container 22. It is possible to simplify the overall configuration and facilitate wiring.
  • the shielding member 60 is formed of a material that reflects infrared light, the output of infrared light extracted from the light extraction port X can be improved.
  • the illumination device has been described as a surface light emitting device in which light sources are arranged in a plurality of rows in the above embodiment, but may be used as a line light irradiation device in which light sources are arranged in one row.
  • the shielding member has a long shape and covers all the sockets of the light sources included in one row.
  • one shielding member is provided for each light source.
  • the shape and arrangement of the members may be changed as appropriate.
  • the shielding member of the above embodiment has a rectangular shape whose cross section is opened downward, but the cross sectional shape such as a semicircular shape, an elliptical shape, or a triangular shape that opens downward is appropriately changed. I do not care.
  • the shielding member of the above embodiment is arranged to shield the light emitted from the light source and directly directed to the socket. However, for example, the shielding member is reflected on a peripheral member such as a diffusion plate provided at the light extraction port and then reflected on the socket. You may arrange
  • the socket is attached to the shielding member, but the socket may be attached to the bottom surface of the casing, for example, or may be attached to a member different from the shielding member.
  • the socket 20B of the said embodiment was comprised so that the light emission part 20A might be inserted along the axial direction of the container 22, the insertion direction of the light emission part 20A does not need to be along the axial direction.
  • the configuration may be changed to various configurations.
  • the light source of the said embodiment was demonstrated as what a filament extended in the direction perpendicular
  • column was arrange
  • the light sources 20 arranged in the opposite direction can be arranged between the light sources 20 arranged in a certain direction, so that the light sources without causing interference between the adjacent sockets 20B.
  • the arrangement interval of 20 can be narrowed, and the illuminance unevenness in the longitudinal direction of the line light can be reduced.
  • the reflecting plate 50 which is a reflecting member provided facing the light extraction opening X is provided integrally with the shielding member 60.
  • FIG. May be.
  • the shielding member 60 has a front wall 61, a rear wall 62, and an upper wall 63, as in the above-described embodiment.
  • the rear wall 62 is integrated with the reflector 50. Is provided.
  • the front wall 61 and the reflecting plate 50 may be provided integrally.
  • the reflecting plate 50 and the shielding member 60 are further integrated with the light source 20.
  • the socket 20B constituting the light source 20 is connected to the shielding member 60 by screws or the like.
  • the light source 20, the reflecting plate 50, and the shielding member 60 comprise the unit structure Z formed by unitizing them.
  • the plurality of light sources 20 arranged along the direction orthogonal to the optical axis of the light source 20 and the reflecting plate 50 and the shielding member 60 provided corresponding to the plurality of light sources 20 form the unit structure Z. It is composed.
  • the unit structure Z is supported by a support member 70 as shown in FIG.
  • the support member 70 supports the unit structure Z while being spaced apart from the surface (bottom plate 12) facing the light extraction port X of the casing toward the light extraction port X.
  • the support member 70 here supports the light source 20, but may support the reflection plate 50 and the shielding member 60. In FIG. 9, two support members 70 are shown, but the number of support members 70 is not limited to this, and may be one or three or more.
  • a second accommodation space S2 for accommodating, for example, a circuit board C or an electric cable (not shown) is formed between the unit structure Z and the bottom plate 12. Is done.
  • the circuit board C here is supported by the support member 70 and constitutes a part of the unit structure Z.
  • the reflecting plate 50 and the shielding member 60 are integrated, so that the reflecting plate 50 is disposed around the light source 20 by attaching them to the light source 20.
  • a structure in which the socket 20B is shielded by the shielding member 60 can be obtained, and the assemblability can be improved.
  • the unit structure Z is formed by unitizing the light source 20, the reflector 50, the shielding member 60, and the circuit board C, the structure can be simplified and the assemblability can be further improved.
  • the light source of the above embodiment is arranged such that the outer peripheral surface of the container faces the light extraction port, and the light emitted from each light source goes directly to the light extraction port.
  • the structure it is good also as a structure which makes the light inject
  • the lighting device of the present invention may further include a relay substrate to which a plurality of light sources arranged in a row are connected.
  • this relay board is electrically connected to an electric cable connected to the socket of each light source.
  • the relay board is provided in the accommodation space S to be protected from heat. it can.
  • an electric cable may be connected to the light emitting unit without using the socket, or the light emitting unit may be connected to the relay substrate.
  • an electric cable or a relay board is the connected part.
  • the illumination device of the above embodiment is a halogen lamp used for inspection purposes.
  • the lighting device is not limited to inspection purposes, and may be used for general purposes.
  • halogen lamps krypton lamps, incandescent lamps, and UV lamps Etc.
  • to-be-connected parts such as a socket
  • to-be-connected parts can be protected from a heat
  • the intensity distribution of light applied to the object can be made flatter.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

The present invention is an illumination device comprising light sources (20) in which filaments (21) are used, wherein the illumination device (100) comprises: a plurality of light sources (20) with which control of the light-gathering properties and of the uniformity of light irradiated on an object is facilitated and parts that are to be connected, such as sockets (20B), can be protected from heat, the plurality of light sources (20) being aligned in one row or a plurality of rows and being designed to flatten the intensity distribution of light irradiated on the object; and a casing (10) that accommodates the light sources (20) and has a light extraction port X formed therein for extracting light from the light sources. The light sources (20) have: light-emitting parts (20A) in which the filaments (21) are accommodated in tubular accommodating bodies (22); and parts that are to be connected, such as the sockets (20B), to which the light-emitting parts (20A) are connected. The illumination device (100) furthermore comprises shielding members (60) disposed in an orientation in which light emitted from the outer circumferential surfaces (221) of the accommodating bodies (22) can be extracted from the light extraction port X, the shielding members (60) covering at least part of the sockets (20B) and shielding the light emitted from the light-emitting parts (20A) toward the sockets (20B).

Description

照明装置Lighting device
　本願発明は、照明装置に関するものである。 The present invention relates to a lighting device.
　例えばハロゲンランプ等のようにフィラメントを用いた光源を備える照明装置は、広い波長領域であって赤外領域まで高い強度を有する光を射出する点において、ＬＥＤ光源を用いたものよりも優れており、例えば赤外カメラとともに異物混入検査や外観検査等に用いられている。 For example, an illuminating device including a light source using a filament such as a halogen lamp is superior to that using an LED light source in that it emits light having a wide wavelength region and high intensity up to the infrared region. For example, it is used together with an infrared camera for contamination inspection and appearance inspection.
　この種の照明装置としては、特許文献１に示すように、先端が封止された筒状の収容体にフィラメントを収容してなるハロゲンランプを列状に複数並べたものがある。具体的にこの照明装置は、各ハロゲンランプの後方に楕円反射鏡を設けるとともに、前方に反射板を設けて、各ハロゲンランプから射出された光を集光しつつ対象物に向かって反射させるように構成されている。 As this type of lighting device, as shown in Patent Document 1, there is a lighting device in which a plurality of halogen lamps in which filaments are housed in a cylindrical housing whose tip is sealed are arranged in a line. Specifically, in this lighting device, an elliptical reflecting mirror is provided behind each halogen lamp, and a reflecting plate is provided in front, so that the light emitted from each halogen lamp is condensed and reflected toward the object. It is configured.
　しかしながら、収容体の先端が封止されたハロゲンランプでは、フィラメントからの光が封止部分で予期せぬ方向に屈折してしまい、ハロゲンランプから射出された光の集光性や、対象物に照射される光の均一性を制御することが難しい。 However, in the halogen lamp in which the tip of the container is sealed, the light from the filament is refracted in an unexpected direction at the sealed portion, and the condensing property of the light emitted from the halogen lamp and the target object It is difficult to control the uniformity of the irradiated light.
実開昭５６－６０９４９号公報Japanese Utility Model Publication No. 56-60949
　そこで本願発明者は、先端が封止された筒状の収容体を倒した状態で列状に並べて、収容体の外側周面から射出される光を対象物に導く構成を、本願発明の開発に当たって中間的に考えた。 Therefore, the inventor of the present application has developed a configuration in which the cylindrical containers with the tips sealed are arranged in a row in a state of being tilted, and the light emitted from the outer peripheral surface of the container is guided to the object. I thought in the middle.
　このような構成であれば、フィラメントからの光は予期せぬ方向に屈折することなく収容体の外側周面から射出されて対象物に導かれるので、対象物に照射する光の集光性や均一性を制御し易くなる。 With such a configuration, the light from the filament is emitted from the outer peripheral surface of the container without being refracted in an unexpected direction and guided to the object. It becomes easy to control the uniformity.
　ところで、上述したようにフィラメントを用いた光源は、フィラメントを収容する収容体をソケットに接続して、このソケットを介してフィラメントに電流を供給するように構成されているので、フィラメントの発光により生じた赤外波長を含む広い波長領域の光がソケットに照射される。
　その結果、ソケットが熱によるダメージを受けたり、フィラメントからの光のうち特定波長の光がソケットに吸収されて、対象物に照射される光の強度分布に起伏が生じたりするといった問題が生じる。かかる問題は、ソケットを介さずに収容体を電気ケーブルや中継基板等の被接続部に接続する場合にも同様に生じる問題である。 By the way, a light source using a filament as described above is configured to connect a container for accommodating a filament to a socket and supply current to the filament through the socket. The socket is irradiated with light in a wide wavelength region including infrared wavelengths.
As a result, the socket is damaged by heat, or light of a specific wavelength among the light from the filament is absorbed by the socket, and the intensity distribution of the light irradiated to the object is undulated. Such a problem is also a problem that occurs when the container is connected to a connected portion such as an electric cable or a relay board without using a socket.
　そこで、本願発明は、上記問題点を一挙に解決すべくなされたものであり、フィラメントを用いた光源を備える照明装置において、対象物に照射する光の集光性や均一性を制御し易くするとともに、ソケット等の被接続部を熱から保護することができ、なおかつ対象物に照射する光の強度分布をよりフラットにすることをその主たる課題とするものである。 Accordingly, the present invention has been made to solve the above problems all at once, and in an illuminating device including a light source using a filament, it is easy to control the light condensing property and uniformity of light irradiated to an object. At the same time, it is possible to protect a connected portion such as a socket from heat, and to make the intensity distribution of light applied to the object flattened as a main problem.
　すなわち本願発明にかかる照明装置は、１列又は複数列に並べられた複数の光源と、前記光源を収容するとともに、前記光源からの光を取り出すための光取出し口が形成されたケーシングとを具備する照明装置であって、前記光源が、フィラメントを筒状の収容体に収容してなる発光部及び前記発光部が接続される被接続部を有し、前記収容体の外側周面から射出された光が前記光取出し口から取り出される姿勢で配置されており、前記被接続部の少なくとも一部を覆うとともに、前記発光部から射出されて前記被接続部に向かう光を遮蔽する遮蔽部材をさらに具備していることを特徴とするものである。なお、ここでいう「被接続部に向かう光」とは、発光部から直接被接続部に向かう光のみならず、周囲の部材で反射した後に被接続部に向かう光も含まれる。 That is, the illumination device according to the present invention includes a plurality of light sources arranged in one or a plurality of rows, and a casing that accommodates the light sources and is formed with a light extraction port for taking out light from the light sources. The light source has a light emitting part in which a filament is accommodated in a cylindrical container and a connected part to which the light emitting part is connected, and is emitted from an outer peripheral surface of the container. And a shielding member that covers at least a part of the connected part and shields light emitted from the light emitting part and directed to the connected part. It is characterized by having. Note that the “light toward the connected portion” here includes not only light directly traveling from the light emitting portion toward the connected portion but also light traveling toward the connected portion after being reflected by surrounding members.
　このように構成された照明装置であれば、光源が収容体の外側周面から射出された光が光取出し口から取り出される姿勢で配置されているので、収容体の先端が封止されているとしても、フィラメントからの光は予期せぬ方向に屈折することなく収容体の外側周面から射出されて対象物に導かれる。これにより、対象物に照射する光の集光性や均一性を制御し易くなる。
　そのうえ、遮蔽部材が被接続部の少なくとも一部を覆うとともに、発光部から被接続部に向かう光を遮蔽しているので、被接続部を熱から保護することができ、なおかつ特定波長の光が被接続部に吸収されることなく、対象物に照射される光の強度分布をフラットにすることができる。 In the lighting device configured as described above, since the light source is arranged in a posture in which light emitted from the outer peripheral surface of the container is extracted from the light extraction port, the tip of the container is sealed. Even so, the light from the filament is emitted from the outer peripheral surface of the container without being refracted in an unexpected direction and guided to the object. Thereby, it becomes easy to control the condensing property and uniformity of the light irradiated to the object.
In addition, since the shielding member covers at least a part of the connected portion and shields light traveling from the light emitting portion to the connected portion, the connected portion can be protected from heat, and light of a specific wavelength is also emitted. The intensity distribution of the light applied to the object can be flattened without being absorbed by the connected portion.
　前記フィラメントに電流を供給するための電気ケーブルが前記被接続部に接続された状態において、前記遮蔽部材が、前記電気ケーブルの少なくとも一部を覆うとともに、前記発光部から射出されて前記電気ケーブルに向かう光を遮蔽することが好ましい。なお、ここでいう「電気ケーブルに向かう光」とは、発光部から直接電気ケーブルに向かう光のみならず、周囲の部材で反射した後に電気ケーブルに向かう光も含まれる。
　このような構成であれば、電気ケーブルを熱から保護することができる。 In a state where an electric cable for supplying current to the filament is connected to the connected part, the shielding member covers at least a part of the electric cable and is emitted from the light emitting part to the electric cable. It is preferable to block the light that goes. In addition, the "light which goes to an electric cable" here contains not only the light which goes to an electric cable directly from a light emission part but the light which goes to an electric cable after reflecting with a surrounding member.
With such a configuration, the electric cable can be protected from heat.
　前記遮蔽部材が、前記光源の配列方向に沿って延びる長尺状のものであり、１列に含まれる前記各光源の前記被接続部を覆っていることが好ましい。
　このような構成であれば、例えば各光源それぞれに対して遮蔽部材を設ける構成に比べて、部品点数を少なくすることができ、装置の組み立てが容易である。 It is preferable that the shielding member has a long shape extending along the arrangement direction of the light sources and covers the connected portions of the light sources included in one row.
With such a configuration, for example, the number of parts can be reduced and the assembly of the apparatus is easy as compared with a configuration in which a shielding member is provided for each light source.
　前記遮蔽部材が前記ケーシングに固定されており、該遮蔽部材に前記被接続部が取り付けられていることが好ましい。
　このような構成であれば、被接続部を固定するための部材を別途設ける必要がなく、装置構成を簡単化することができる。 It is preferable that the shielding member is fixed to the casing, and the connected portion is attached to the shielding member.
With such a configuration, it is not necessary to separately provide a member for fixing the connected portion, and the device configuration can be simplified.
　前記遮蔽部材が、前記被接続部を収容するとともに空気が流入出可能な収容空間を形成していることが好ましい。
　このような構成であれば、収容空間内にケーシング内の空気やケーシング外の空気が流れ込むので、この空気によって被接続部を冷却することができ、被接続部を熱からより確実に保護することができる。 It is preferable that the shielding member forms an accommodation space that accommodates the connected portion and allows air to flow in and out.
With such a configuration, the air inside the casing and the air outside the casing flow into the housing space, so that the connected portion can be cooled by this air, and the connected portion is more reliably protected from heat. Can do.
　列状に並べられた複数の前記光源が、前記光取出し口に前記収容体の外側周面が対向する姿勢で配置されていることが好ましい。
　このような構成であれば、フィラメントからの光が収容体の封止部分で予期せぬ方向に屈折しても、光取出し口から取り出される光はその影響をほとんど受けず、光取出し口から取り出される光の集光性や均一性をより向上させることができる。 It is preferable that the plurality of light sources arranged in a row are arranged in a posture in which the outer peripheral surface of the container faces the light extraction port.
With such a configuration, even if the light from the filament is refracted in an unexpected direction at the sealed portion of the container, the light extracted from the light extraction port is hardly affected and is extracted from the light extraction port. It is possible to further improve the light condensing property and uniformity.
　具体的な実施態様としては、列状に並べられた複数の前記光源が、配列方向と前記収容体の軸方向とが直交する姿勢で配置されている構成が挙げられる。 Specific embodiments include a configuration in which a plurality of the light sources arranged in a row are arranged in a posture in which the arrangement direction and the axial direction of the container are orthogonal to each other.
　より具体的には、列状に並べられた複数の前記光源が、前記収容体の先端が互いに同じ向きになる姿勢で配置されていることが好ましい。
　このような配置であれば、遮蔽部材や電気ケーブルを片側に集約させることができ、全体構成の簡素化や配線の容易化を図れる。 More specifically, it is preferable that the plurality of light sources arranged in a row are arranged in a posture in which the tips of the containers are in the same direction.
With such an arrangement, the shielding member and the electric cable can be concentrated on one side, and the overall configuration can be simplified and the wiring can be facilitated.
　一方、上述したように収容体の先端が互いに同じ向きになる姿勢で光源を配置した場合、光源の間隔を狭くすると互いに隣り合う光源のソケットが干渉してしまう恐れがあり、光源の間隔をソケットが干渉しない程度に保つ必要がある。その結果ライン光の長手方向における照度ムラが生じてしまう。
　そこで、列状に並べられた複数の前記光源が、配列方向に沿って互いに隣り合う前記光源の前記収容体の先端が互いに逆向きになる姿勢で配置されていることが好ましい。
　このような配置であれば、ある方向を向いて並べられた光源の間に、その逆向きに並べられた光源を配置することができるので、光源の配置間隔を狭くすることができ、ライン光の長手方向における照度ムラを低減できる。 On the other hand, as described above, when the light sources are arranged in such a posture that the tips of the containers are in the same direction, if the distance between the light sources is reduced, the sockets of the adjacent light sources may interfere with each other. Must be kept to the extent that does not interfere. As a result, illuminance unevenness in the longitudinal direction of the line light occurs.
Therefore, it is preferable that the plurality of light sources arranged in a row are arranged in a posture in which the tips of the containers of the light sources adjacent to each other along the arrangement direction are opposite to each other.
With such an arrangement, light sources arranged in the opposite direction can be arranged between light sources arranged in a certain direction, so that the arrangement interval of the light sources can be reduced, and line light Illuminance unevenness in the longitudinal direction can be reduced.
　前記光源が、赤外波長を含む光を射出するものであり、前記遮蔽部材が、赤外波長の光を反射させる材質で形成されていることが好ましい。
　このような構成であれば、光取出し口から取り出される赤外光の出力を向上させることができる。 It is preferable that the light source emits light including an infrared wavelength, and the shielding member is formed of a material that reflects infrared wavelength light.
With such a configuration, it is possible to improve the output of infrared light extracted from the light extraction port.
　このように構成した本願発明によれば、フィラメントを用いた光源を備える照明装置において、対象物に照射する光の集光性や均一性を制御し易くするとともに、熱によるソケット等の被接続部へのダメージを低減し、なおかつ対象物に照射する光の強度分布をよりフラットにすることができる。 According to the present invention configured as described above, in an illuminating device including a light source using a filament, it is easy to control the light condensing property and uniformity of light applied to an object, and a connected portion such as a socket by heat Damage can be reduced, and the intensity distribution of the light applied to the object can be made flatter.
本実施形態の照明装置の構成を示す斜視図。The perspective view which shows the structure of the illuminating device of this embodiment. 本実施形態の照明装置のケーシング内の構成を示す斜視図。The perspective view which shows the structure in the casing of the illuminating device of this embodiment. 本実施形態の光源の構成及び配置を示す平面図。The top view which shows the structure and arrangement | positioning of the light source of this embodiment. 本実施形態の照明装置のケーシング内の構成を示す断面図。Sectional drawing which shows the structure in the casing of the illuminating device of this embodiment. 本実施形態の照明装置のケーシング内の構成を示す斜視図。The perspective view which shows the structure in the casing of the illuminating device of this embodiment. その他の実施形態における光源の構成を示す平面図。The top view which shows the structure of the light source in other embodiment. その他の実施形態における光源の構成を示す平面図。The top view which shows the structure of the light source in other embodiment. その他の実施形態における照明装置のケーシング内の構成を示す断面図。Sectional drawing which shows the structure in the casing of the illuminating device in other embodiment. その他の実施形態における光源の周辺構成を示す斜視図。The perspective view which shows the periphery structure of the light source in other embodiment.
　以下に本願発明に係る照明装置の一実施形態について図面を参照して説明する。 Hereinafter, an embodiment of a lighting device according to the present invention will be described with reference to the drawings.
　本実施形態に係る照明装置１００は、例えば、赤外カメラを使用して異物混入検査や外観検査等を実施するために用いられるものであり、検査対象に赤外波長の光（以下、赤外光という）を照射する面発光装置である。
　なお、赤外カメラとしては、例えば分光器を備えて広い波長領域の情報を取得することができるハイパースペクトルカメラが好ましいが、その他の種々のタイプのものを用いることができる。 The illuminating device 100 according to the present embodiment is used, for example, for carrying out a foreign substance contamination inspection, an appearance inspection, and the like using an infrared camera. It is a surface light emitting device that emits light).
As the infrared camera, for example, a hyperspectral camera that includes a spectroscope and can acquire information in a wide wavelength region is preferable, but various other types can be used.
　具体的にこの照明装置１００は、図１及び図２に示すように、光取出し口Ｘが形成されたケーシング１０と、ケーシング１０内に収容された複数の光源２０とを具備している。なお、図２は、ケーシング１０の内部構成を示しているが、後述する電気ケーブルＥＬの記載は省略している。 Specifically, as shown in FIGS. 1 and 2, the lighting device 100 includes a casing 10 in which a light extraction port X is formed and a plurality of light sources 20 accommodated in the casing 10. FIG. 2 shows the internal configuration of the casing 10, but the description of an electric cable EL described later is omitted.
　ケーシング１０は、例えば略直方体形状をなし、その一面（上板１１）に前記光取出し口Ｘが形成されたものであり、ここでは前記光取出し口Ｘに透過性を有する拡散板３０が設けられている。なお、光取出し口Ｘには、拡散板３０の代わりに、光を拡散させることなく透過させる光透過窓を設けても良い。
　また、光取出し口Ｘとは反対側の底板１２の裏面（外面）には、光源２０からの熱を放熱するための放熱フィン等の放熱部材４０が設けられており、底板１２の表面（内面）には赤外光を反射させる反射板５０が設けられている。さらに本実施形態では、ケーシング１０の側板１３の内面における少なくとも一部に反射板５０を設けている。なお、底板１２や側板１３には必ずしも反射板５０を設けておく必要はない。 The casing 10 has, for example, a substantially rectangular parallelepiped shape, and the light extraction port X is formed on one surface (the upper plate 11). Here, the light extraction port X is provided with a diffusing plate 30 having transparency. ing. The light extraction port X may be provided with a light transmission window that transmits light without diffusing, instead of the diffusion plate 30.
Further, a heat radiating member 40 such as a heat radiating fin for radiating heat from the light source 20 is provided on the back surface (outer surface) of the bottom plate 12 opposite to the light extraction port X, and the surface (inner surface) of the bottom plate 12 is provided. ) Is provided with a reflecting plate 50 for reflecting infrared light. Furthermore, in this embodiment, the reflecting plate 50 is provided on at least a part of the inner surface of the side plate 13 of the casing 10. The bottom plate 12 and the side plate 13 are not necessarily provided with the reflecting plate 50.
　光源２０は、図２に示すように、ケーシング１０内において列状に配置されており、具体的には図３に示すように、フィラメント２１を先端が封止された筒状の収容体２２に収容してなる発光部２０Ａと、発光部２０Ａが接続される被接続部たるソケット２０Ｂとを有した所謂ハロゲンランプである。 The light sources 20 are arranged in a row in the casing 10 as shown in FIG. 2. Specifically, as shown in FIG. 3, the filament 21 is placed in a cylindrical container 22 whose tip is sealed. This is a so-called halogen lamp having a light emitting portion 20A accommodated and a socket 20B as a connected portion to which the light emitting portion 20A is connected.
　より具体的に説明すると、フィラメント２１は導線が巻回されてなり、電流が供給されるとジュール熱を発生しながら発光するものである。ここでのフィラメント２１は、収容体２２の軸方向と垂直な方向に延びており、その両端からは導入線２３が延びている。これらの導入線２３はそれぞれ、収容体２２の外側に引き出された端子２４に接続されており、各端子２４がソケット２０Ｂに差し込まれることで発光部２０Ａとソケット２０Ｂとが接続される。 More specifically, the filament 21 is formed by winding a conducting wire, and emits light while generating Joule heat when a current is supplied. The filament 21 here extends in a direction perpendicular to the axial direction of the container 22, and an introduction line 23 extends from both ends thereof. Each of these lead wires 23 is connected to a terminal 24 drawn to the outside of the container 22, and the light emitting portion 20A and the socket 20B are connected by inserting each terminal 24 into the socket 20B.
　収容体２２は、ガラス製のバルブと呼ばれるものであり、ここでは円筒状の先細り形状をなすものであり、先端には先端開口をガラス融着などによって封止する際に形成されたチップ２５が設けられている。また、後端開口は扁平状の封止部材２６によって封止されている。 The container 22 is called a glass bulb, and here has a cylindrical tapered shape, and a tip 25 formed when the tip opening is sealed by glass fusion or the like at the tip. Is provided. The rear end opening is sealed by a flat sealing member 26.
　ソケット２０Ｂは、端子２４が接続される図示しない差込口が形成されたブロック状のものであり、ここでは収容体２２の軸方向に沿って発光部２０Ａが差し込まれるように構成されている。具体的にこのソケット２０Ｂは、収容体２２の軸方向から視たときに、収容体２２よりも外側にはみ出す例えば収容体２２よりも大径の円筒状をなすものであり、発光部２０Ａに対向する取付面２７に前記差込口が形成されている。ソケット２０Ｂには、フィラメント２１に電流を供給するための電気ケーブルＥＬが接続されており、電気ケーブルＥＬは、図１に示すように、例えば複数本が束ねられた状態でケーシング１０の側板１３に形成された貫通孔１ｈからケーシング１０の外部に引き出されて図示しない電源に接続される。 The socket 20B has a block shape in which an insertion port (not shown) to which the terminal 24 is connected is formed, and here, the light emitting unit 20A is configured to be inserted along the axial direction of the container 22. Specifically, the socket 20B has a cylindrical shape, for example, larger in diameter than the housing 22 and protrudes outside the housing 22 when viewed from the axial direction of the housing 22 and faces the light emitting portion 20A. The insertion port is formed in the mounting surface 27 to be performed. An electrical cable EL for supplying current to the filament 21 is connected to the socket 20B. As shown in FIG. 1, the electrical cable EL is connected to the side plate 13 of the casing 10 in a state where, for example, a plurality of cables are bundled. It is drawn out of the casing 10 from the formed through hole 1h and connected to a power source (not shown).
　上述した光源２０は、図２に示すように、互いに平行な複数列に並べられており、各列に並べられた複数の光源２０は、収容体２２の外側周面２２１が光取出し口Ｘに対向する姿勢で配置されている。より詳細に説明すると、各光源２０は、収容体２２の軸方向と光取出し口Ｘの平面方向（光取出し口Ｘの法線方向に垂直な方向）とが平行になる姿勢で配置されている。
　なお、収容体２２の軸方向は必ずしも光取出し口Ｘの平面方向と平行である必要はなく、光取出し口Ｘに対して傾斜していても良い。 As shown in FIG. 2, the light sources 20 described above are arranged in a plurality of rows parallel to each other, and the plurality of light sources 20 arranged in each row has the outer peripheral surface 221 of the container 22 at the light extraction port X. It is arranged in an opposing posture. More specifically, each light source 20 is arranged in a posture in which the axial direction of the container 22 and the plane direction of the light extraction port X (direction perpendicular to the normal direction of the light extraction port X) are parallel. .
Note that the axial direction of the container 22 is not necessarily parallel to the planar direction of the light extraction port X, and may be inclined with respect to the light extraction port X.
　本実施形態では、列状に並べられた各光源２０は、配列方向と収容体２２の軸方向とが直交する姿勢、すなわち配列方向に沿って各光源２０のフィラメント２１が延びるように配置されており、各収容体２２の軸方向は互いに平行である。また、列状に並べられた各光源２０は、収容体２２の先端が互いに同じ向きになる姿勢、すなわち各収容体２２の先端及び後端それぞれが配列方向に沿って直線上に位置する姿勢で配置されている。
　なお、フィラメント２１は必ずしも配列方向に沿って延びている必要はなく、配列方向に対して傾いた方向に延びていても良い。また、各収容体２２の軸方向は必ずしも全てが互いに平行である必要はない。 In the present embodiment, the light sources 20 arranged in a row are arranged such that the arrangement direction and the axial direction of the container 22 are orthogonal, that is, the filaments 21 of the light sources 20 extend along the arrangement direction. The axial directions of the containers 22 are parallel to each other. In addition, the light sources 20 arranged in a row are in a posture in which the tips of the containers 22 are in the same direction, that is, in a posture in which the tips and rear ends of the containers 22 are linearly positioned along the arrangement direction. Has been placed.
The filament 21 does not necessarily extend along the arrangement direction, and may extend in a direction inclined with respect to the arrangement direction. Moreover, it is not always necessary that all the axial directions of the containers 22 are parallel to each other.
　然して、本実施形態の照明装置１００は、図４に示すように、ソケット２０Ｂの少なくとも一部を覆うとともに、発光部２０Ａから射出されてソケット２０Ｂに向かう光を遮蔽する遮蔽部材６０をさらに具備してなる。 However, as shown in FIG. 4, the illumination device 100 according to the present embodiment further includes a shielding member 60 that covers at least a part of the socket 20B and shields light emitted from the light emitting unit 20A and traveling toward the socket 20B. It becomes.
　遮蔽部材６０は、赤外光を透過させずに反射させる材質からなる。なお反射には、鏡面反射や拡散反射が含まれる。 The shielding member 60 is made of a material that reflects infrared light without transmitting it. The reflection includes specular reflection and diffuse reflection.
　本実施形態の遮蔽部材６０は、図２及び図４に示すように、少なくとも一部がソケット２０Ｂの取付面２７と収容体２２との間に介在して取付面２７を覆うものであり、光源２０の配列方向に沿って延びる長尺状をなす。この遮蔽部材６０は、列状に配置された光源２０の各列毎に設けられており、各遮蔽部材６０が対応する列に含まれる全ての光源２０のソケット２０Ｂを覆うように構成されている。 As shown in FIGS. 2 and 4, the shielding member 60 according to the present embodiment covers at least a part of the socket 20 </ b> B between the mounting surface 27 of the socket 20 </ b> B and the housing 22 and covers the mounting surface 27. It has a long shape extending along 20 arrangement directions. The shielding member 60 is provided for each row of the light sources 20 arranged in a row, and each shielding member 60 is configured to cover the sockets 20B of all the light sources 20 included in the corresponding row. .
　遮蔽部材６０は、ソケット２０Ｂを収容する収容空間Ｓを形成するものであり、横断面が下向きに開口した矩形形状をなす。具体的にこのものは、図４に示すように、ソケット２０Ｂの取付面２７を覆う前壁６１、前壁６１と対向するとともにソケット２０Ｂの後方に設けられた後壁６２、及び前壁６１と後壁６２との間に介在するとともにソケット２０Ｂの上方に設けられた上壁６３とを有している。なお、前壁６１、後壁６２、及び上壁６３は、一体的に形成されていても良いし、別部材であっても良いが、ここでは前壁６１と上壁６３とを一体的に形成するとともに、後壁６２をこれらと別体にしている。また、遮蔽部材６０は、必ずしも前壁６１、後壁６２、及び上壁６３を有している必要はなく、少なくとも前壁６１を有していれば、図２及び図４の最後列に示す遮蔽部材６０のように、例えば上壁６３を有していないものであっても良いし、図示していないが上壁６３及び後壁６２を有していないものであっても良い。 The shielding member 60 forms an accommodation space S for accommodating the socket 20B, and has a rectangular shape with a transverse section opened downward. Specifically, as shown in FIG. 4, this includes a front wall 61 that covers the mounting surface 27 of the socket 20B, a rear wall 62 that faces the front wall 61 and is provided behind the socket 20B, and a front wall 61. An upper wall 63 is provided between the rear wall 62 and provided above the socket 20B. The front wall 61, the rear wall 62, and the upper wall 63 may be integrally formed or may be separate members, but here the front wall 61 and the upper wall 63 are integrally formed. While forming, the rear wall 62 is made separate from these. Moreover, the shielding member 60 does not necessarily need to have the front wall 61, the rear wall 62, and the upper wall 63. If it has at least the front wall 61, it will be shown in the last row of FIG.2 and FIG.4. For example, the shielding member 60 may not have the upper wall 63, or may not have the upper wall 63 and the rear wall 62 although not shown.
　前壁６１は、発光部２０Ａが挿通される貫通孔６ｈが形成された平板状のものであり、ここでは長手方向に沿って複数の貫通孔６ｈが例えば等間隔で形成されている。これらの貫通孔６ｈは、列状に並べられた各光源２０の発光部２０Ａそれぞれに対応する位置に形成されており、各貫通孔６ｈを対応する光源２０の先端から通すことで、前壁６１がソケット２０Ｂの取付面２７に対面した状態で配置される。
　本実施形態では、上述したように上壁６３が前壁６１と一体的に設けられていることから、前壁６１をソケット２０Ｂの取付面２７に近接配置させることで、上壁６３がソケット２０Ｂの上方に配置される。 The front wall 61 is a flat plate having a through hole 6h through which the light emitting unit 20A is inserted. Here, a plurality of through holes 6h are formed at regular intervals along the longitudinal direction, for example. These through holes 6h are formed at positions corresponding to the light emitting portions 20A of the respective light sources 20 arranged in a line, and the front wall 61 is formed by passing each through hole 6h from the tip of the corresponding light source 20. Is arranged in a state of facing the mounting surface 27 of the socket 20B.
In the present embodiment, since the upper wall 63 is provided integrally with the front wall 61 as described above, the upper wall 63 is attached to the socket 20B by placing the front wall 61 close to the mounting surface 27 of the socket 20B. Is disposed above.
　後壁６２は、前壁６１と平行に設けられた平板状のものであり、その下端部にはケーシング１０の底面に沿うように折れ曲げられたフランジ部が形成されている。そして、このフランジ部をケーシング１０の底面に螺子等によって取り付けることで、遮蔽部材６０がケーシング１０に固定されている。
　本実施形態では、後壁６２における前壁６１と対向する面にソケット２０Ｂが螺子等を介して取り付けられており、遮蔽部材６０がソケット２０Ｂの固定やソケット２０Ｂの位置決めに兼用されている。 The rear wall 62 is a flat plate provided in parallel with the front wall 61, and a flange portion that is bent along the bottom surface of the casing 10 is formed at a lower end portion thereof. The shielding member 60 is fixed to the casing 10 by attaching the flange portion to the bottom surface of the casing 10 with screws or the like.
In the present embodiment, the socket 20B is attached to the surface of the rear wall 62 facing the front wall 61 via a screw or the like, and the shielding member 60 is also used for fixing the socket 20B or positioning the socket 20B.
　上述した前壁６１、後壁６２、及び上壁６３によって囲まれた空間が収容空間Ｓであり、ここでの収容空間Ｓは、密閉されることなく、空気が流入出可能に構成されている。具体的には、図２に示すように、遮蔽部材６０の長手方向の一端又は両端が塞がれることなく開放されており、この一端開口又は両端開口を介してケーシング１０内の空気が収容空間Ｓに流入出するように構成されている。 The space surrounded by the front wall 61, the rear wall 62, and the upper wall 63 described above is the accommodation space S, and the accommodation space S here is configured to allow air to flow in and out without being sealed. . Specifically, as shown in FIG. 2, one end or both ends in the longitudinal direction of the shielding member 60 are opened without being blocked, and the air in the casing 10 is accommodated through the one end opening or both end openings. S is configured to flow into and out of S.
　本実施形態では、遮蔽部材６０の長手方向の一端は開口するとともに、他端は上述した反射板５０によって一部が塞がれている。ただし、この反射板５０には、図５に示すように、電気ケーブルＥＬを通すための貫通孔５ｈが形成されており、反射板５０とケーシング１０の内側面との間に沿って配線された電気ケーブルＥＬが前記貫通孔５ｈを介して収容空間Ｓ内に挿入できるように構成されている。つまり、本実施形態の収容空間Ｓは、電気ケーブルＥＬの少なくとも一部を収容しており、遮蔽部材６０が電気ケーブルＥＬの少なくとも一部を覆って、発光部２０Ａから射出されて電気ケーブルＥＬに向かう光を遮蔽するように構成されている。 In the present embodiment, one end of the shielding member 60 in the longitudinal direction is opened, and the other end is partially blocked by the reflection plate 50 described above. However, as shown in FIG. 5, the reflecting plate 50 is formed with a through hole 5 h for allowing the electric cable EL to pass therethrough and wired between the reflecting plate 50 and the inner surface of the casing 10. The electric cable EL can be inserted into the accommodation space S through the through hole 5h. That is, the accommodation space S of the present embodiment accommodates at least a part of the electric cable EL, and the shielding member 60 covers at least a part of the electric cable EL and is emitted from the light emitting unit 20A to the electric cable EL. It is configured to shield the light that is heading.
　このように構成された本実施形態の照明装置１００によれば、光源２０が収容体２２の外側周面２２１から射出された光が光取出し口Ｘから取り出される姿勢で配置されているので、フィラメント２１からの光は予期せぬ方向に屈折することなく収容体２２の外側周面２２１から射出されて対象物に導かれる。これにより、対象物に照射する光の集光性や均一性を制御し易くなる。
　そのうえ、遮蔽部材６０がソケット２０Ｂを覆って発光部２０Ａから射出される光を遮蔽しているので、ソケット２０Ｂを熱から保護することができ、なおかつ特定波長の光がソケット２０Ｂに吸収されることなく、対象物に照射される光の強度分布をフラットにすることができる。 According to the illuminating device 100 of the present embodiment configured as described above, the light source 20 is disposed in such a posture that the light emitted from the outer peripheral surface 221 of the container 22 is extracted from the light extraction port X. Therefore, the filament The light from 21 is emitted from the outer peripheral surface 221 of the container 22 without being refracted in an unexpected direction and guided to the object. Thereby, it becomes easy to control the condensing property and uniformity of the light irradiated to the object.
In addition, since the shielding member 60 covers the socket 20B and shields the light emitted from the light emitting unit 20A, the socket 20B can be protected from heat, and light of a specific wavelength is absorbed by the socket 20B. In addition, the intensity distribution of the light applied to the object can be made flat.
　また、遮蔽部材６０が電気ケーブルＥＬを覆って発光部２０Ａから射出される光を遮蔽しているので、電気ケーブルＥＬを熱から保護することができる。 Further, since the shielding member 60 covers the electric cable EL and shields the light emitted from the light emitting portion 20A, the electric cable EL can be protected from heat.
　さらに、遮蔽部材６０が光源２０の配列方向に沿って延びる長尺状のものであり、各列に対応して遮蔽部材６０を設けているので、各光源２０それぞれに対して遮蔽部材６０を設ける構成に比べて、部品点数が少なく装置の組み立てが容易である。 Furthermore, since the shielding member 60 is a long one extending along the arrangement direction of the light sources 20 and the shielding member 60 is provided corresponding to each row, the shielding member 60 is provided for each light source 20. Compared to the configuration, the number of parts is small and the assembly of the apparatus is easy.
　加えて、遮蔽部材６０がケーシング１０に固定されており、遮蔽部材６０にソケット２０Ｂが取り付けられているので、ソケット２０Ｂを固定したり位置決めしたりするための部材を別途設ける必要がなく、装置構成を簡単化することができる。 In addition, since the shielding member 60 is fixed to the casing 10 and the socket 20B is attached to the shielding member 60, there is no need to separately provide a member for fixing or positioning the socket 20B, and the device configuration Can be simplified.
　さらに加えて、収容空間Ｓを空気が流入出可能に構成しているので、ケーシング１０内の空気やケーシング１０の外部の空気が収容空間Ｓに流れ込む。これにより、ソケット２０Ｂを冷却することができ、ソケット２０Ｂを熱からより確実に保護することができる。 In addition, since the accommodation space S is configured to allow air to flow in and out, the air in the casing 10 and the air outside the casing 10 flow into the accommodation space S. Thereby, the socket 20B can be cooled and the socket 20B can be more reliably protected from heat.
　そのうえ、列状に並べられた複数の光源２０が、収容体２２の外側周面２２１が光取出し口Ｘに対向する姿勢で配置されているので、フィラメント２１からの光が収容体２２の封止部分で予期せぬ方向に屈折しても、光取出し口Ｘから取り出される光はその影響をほとんど受けず、光取出し口Ｘから取り出される光の集光性や均一性をより向上させることができる。 In addition, since the plurality of light sources 20 arranged in a row are arranged in a posture in which the outer peripheral surface 221 of the container 22 faces the light extraction port X, the light from the filament 21 seals the container 22. Even if the light is refracted in an unexpected direction, the light extracted from the light extraction port X is hardly affected, and the light collecting property and uniformity of the light extracted from the light extraction port X can be further improved. .
　また、列状に並べられた複数の光源２０が、収容体２２の先端が互いに同じ向きになる姿勢で配置されているので、遮蔽部材６０や電気ケーブルＥＬを収容体２２の軸方向片側に集約させることができ、全体構成の簡素化や配線の容易化を図れる。 In addition, since the plurality of light sources 20 arranged in a row are arranged in such a posture that the tips of the containers 22 are in the same direction, the shielding member 60 and the electric cable EL are collected on one axial side of the container 22. It is possible to simplify the overall configuration and facilitate wiring.
　また、遮蔽部材６０が、赤外波長の光を反射させる材質で形成されているので、光取出し口Ｘから取り出される赤外光の出力を向上させることができる。 Further, since the shielding member 60 is formed of a material that reflects infrared light, the output of infrared light extracted from the light extraction port X can be improved.
　なお、本願発明は前記実施形態に限られるものではない。 Note that the present invention is not limited to the above embodiment.
　例えば、照明装置は、前記実施形態では光源を複数列に並べた面発光装置として説明したが、光源を１列に並べたライン光照射装置として用いても良い。 For example, the illumination device has been described as a surface light emitting device in which light sources are arranged in a plurality of rows in the above embodiment, but may be used as a line light irradiation device in which light sources are arranged in one row.
　また、前記実施形態では遮蔽部材が長尺状のものであり、１列に含まれる光源全てのソケットを覆う構成であったが、例えば１つの光源に対して１つの遮蔽部材を設けるなど、遮蔽部材の形状や配置は適宜変更して構わない。 In the above embodiment, the shielding member has a long shape and covers all the sockets of the light sources included in one row. However, for example, one shielding member is provided for each light source. The shape and arrangement of the members may be changed as appropriate.
　さらに、前記実施形態の遮蔽部材は、横断面が下向きに開口した矩形形状をなすものであったが、下向きに開口する半円形状や楕円形状や三角形状等、横断面形状は適宜変更して構わない。
　また、前記実施形態の遮蔽部材は、光源から射出されて直接ソケットに向かう光を遮蔽するように配置されていたが、例えば光取出し口に設けた拡散板などの周囲部材で反射した後にソケットに向かう光を遮蔽するように配置されていても良い。 Further, the shielding member of the above embodiment has a rectangular shape whose cross section is opened downward, but the cross sectional shape such as a semicircular shape, an elliptical shape, or a triangular shape that opens downward is appropriately changed. I do not care.
Further, the shielding member of the above embodiment is arranged to shield the light emitted from the light source and directly directed to the socket. However, for example, the shielding member is reflected on a peripheral member such as a diffusion plate provided at the light extraction port and then reflected on the socket. You may arrange | position so that the light which heads may be shielded.
　前記実施形態では、ソケットを遮蔽部材に取り付けていたが、ソケットは例えばケーシングの底面に取り付けられていても良いし、遮蔽部材と別の部材に取り付けられていても良い。 In the above embodiment, the socket is attached to the shielding member, but the socket may be attached to the bottom surface of the casing, for example, or may be attached to a member different from the shielding member.
　また、前記実施形態のソケット２０Ｂは、収容体２２の軸方向に沿って発光部２０Ａが差し込まれるように構成されていたが、発光部２０Ａの差込方向は軸方向に沿っている必要はなく、種々の構成に変更して構わない。 Moreover, although the socket 20B of the said embodiment was comprised so that the light emission part 20A might be inserted along the axial direction of the container 22, the insertion direction of the light emission part 20A does not need to be along the axial direction. The configuration may be changed to various configurations.
　さらに、前記実施形態の光源は、フィラメントが収容体の軸方向と垂直な方向に延びるものとして説明したが、図６に示すように、フィラメント２１が収容体２２の軸方向に沿って延びるものであって良い。 Furthermore, although the light source of the said embodiment was demonstrated as what a filament extended in the direction perpendicular | vertical to the axial direction of a container, as shown in FIG. 6, the filament 21 extends along the axial direction of the container 22. As shown in FIG. It's okay.
　また、前記実施形態では、列状に並べられた各光源は、収容体の先端が互いに同じ向きになる姿勢で配置されていたが、図７に示すように、配列方向に沿って互いに隣り合う光源２０の収容体２２の先端が互いに逆向きになる姿勢で配置されていても良い。
　このような構成であれば、ある方向を向いて並べられた光源２０の間に、その逆向きに並べられた光源２０を配置することができるので、互いに隣り合うソケット２０Ｂを干渉させることなく光源２０の配置間隔を狭くすることができ、ライン光の長手方向における照度ムラを低減できる。 Moreover, in the said embodiment, although each light source arranged in a row | line | column was arrange | positioned with the attitude | position in which the front-end | tip of a container becomes the mutually same direction, as shown in FIG. 7, it adjoins mutually along an arrangement direction. You may arrange | position with the attitude | position in which the front-end | tip of the container 22 of the light source 20 becomes mutually opposite.
With such a configuration, the light sources 20 arranged in the opposite direction can be arranged between the light sources 20 arranged in a certain direction, so that the light sources without causing interference between the adjacent sockets 20B. The arrangement interval of 20 can be narrowed, and the illuminance unevenness in the longitudinal direction of the line light can be reduced.
　また、本願発明に係る照明装置１００としては、図８及び図９に示すように、光取出し口Ｘに対向して設けられた反射部材たる反射板５０が、遮蔽部材６０と一体的に設けられていても良い。 Moreover, as the illuminating device 100 which concerns on this invention, as shown in FIG.8 and FIG.9, as shown in FIG.8 and FIG.9, the reflecting plate 50 which is a reflecting member provided facing the light extraction opening X is provided integrally with the shielding member 60. FIG. May be.
　より具体的に説明すると、遮蔽部材６０は、前記実施形態と同様に、前壁６１、後壁６２、及び上壁６３を有しており、ここでは後壁６２が反射板５０と一体的に設けられている。なお、前壁６１と反射板５０とが一体的に設けられていても良い。 More specifically, the shielding member 60 has a front wall 61, a rear wall 62, and an upper wall 63, as in the above-described embodiment. Here, the rear wall 62 is integrated with the reflector 50. Is provided. In addition, the front wall 61 and the reflecting plate 50 may be provided integrally.
　さらに、これらの反射板５０及び遮蔽部材６０は、光源２０とさらに一体化されている。具体的には、光源２０を構成するソケット２０Ｂがネジ等によって遮蔽部材６０に連結されている。これにより、光源２０、反射板５０、及び遮蔽部材６０は、これらがユニット化されてなるユニット構造体Ｚを構成している。ここでは、光源２０の光軸と直交する方向に沿って並べられた複数の光源２０と、これら複数の光源２０に対応して設けられた反射板５０及び遮蔽部材６０とがユニット構造体Ｚを構成している。 Furthermore, the reflecting plate 50 and the shielding member 60 are further integrated with the light source 20. Specifically, the socket 20B constituting the light source 20 is connected to the shielding member 60 by screws or the like. Thereby, the light source 20, the reflecting plate 50, and the shielding member 60 comprise the unit structure Z formed by unitizing them. Here, the plurality of light sources 20 arranged along the direction orthogonal to the optical axis of the light source 20 and the reflecting plate 50 and the shielding member 60 provided corresponding to the plurality of light sources 20 form the unit structure Z. It is composed.
　このユニット構造体Ｚは、図９に示すように、支持部材７０に支持されている。この支持部材７０は、ユニット構造体Ｚをケーシングの光取出し口Ｘに対向する面（底板１２）から光取出し口Ｘ側に離間させて支持するものである。ここでの支持部材７０は光源２０を支持しているが、反射板５０や遮蔽部材６０を支持しても良い。また、図９では、２つの支持部材７０を示しているが、支持部材７０の数はこれに限らず、１つであっても良いし、３つ以上であっても良い。
　このようにユニット構造体Ｚを底板１２から離間させて配置することで、ユニット構造体Ｚと底板１２との間に例えば回路基板Ｃや図示しない電気ケーブル等を収容する第２収容空間Ｓ２が形成される。なお、ここでの回路基板Ｃは、支持部材７０によって支持されており、ユニット構造体Ｚの一部を構成している。 The unit structure Z is supported by a support member 70 as shown in FIG. The support member 70 supports the unit structure Z while being spaced apart from the surface (bottom plate 12) facing the light extraction port X of the casing toward the light extraction port X. The support member 70 here supports the light source 20, but may support the reflection plate 50 and the shielding member 60. In FIG. 9, two support members 70 are shown, but the number of support members 70 is not limited to this, and may be one or three or more.
By disposing the unit structure Z away from the bottom plate 12 in this way, a second accommodation space S2 for accommodating, for example, a circuit board C or an electric cable (not shown) is formed between the unit structure Z and the bottom plate 12. Is done. The circuit board C here is supported by the support member 70 and constitutes a part of the unit structure Z.
　このように構成された照明装置１００であれば、反射板５０及び遮蔽部材６０が一体化されているので、これらを光源２０に取り付けることで、光源２０の周囲に反射板５０が配置されるとともに、ソケット２０Ｂを遮蔽部材６０により遮蔽する構造を得ることができ、組立性の向上を図れる。しかも、光源２０、反射板５０、遮蔽部材６０、及び回路基板Ｃがユニット化されてなるユニット構造体Ｚを構成しているので、構造の簡易化や組立性のさらなる向上を図れる。 In the lighting device 100 configured as described above, the reflecting plate 50 and the shielding member 60 are integrated, so that the reflecting plate 50 is disposed around the light source 20 by attaching them to the light source 20. In addition, a structure in which the socket 20B is shielded by the shielding member 60 can be obtained, and the assemblability can be improved. In addition, since the unit structure Z is formed by unitizing the light source 20, the reflector 50, the shielding member 60, and the circuit board C, the structure can be simplified and the assemblability can be further improved.
　さらに別の実施形態を述べると、前記実施形態の光源は、収容体の外側周面が光取出し口と対向する姿勢で配置されており、各光源から射出された光がそのまま光取出し口に向かう構成であったが、各光源から射出された光を例えば反射ミラー等を用いて光取出し口に向かわせる構成としても良い。 To describe still another embodiment, the light source of the above embodiment is arranged such that the outer peripheral surface of the container faces the light extraction port, and the light emitted from each light source goes directly to the light extraction port. Although it was the structure, it is good also as a structure which makes the light inject | emitted from each light source direct to a light extraction opening using a reflective mirror etc., for example.
　さらに加えて、本願発明の照明装置としては、列状に配置された複数の光源が接続される中継基板をさらに備えていても良い。
　具体的にこの中継基板は、各光源のソケットに接続された電気ケーブルが電気的に接続されるものであり、例えば前記実施形態において中継基板を収容空間Ｓに設けることで熱から保護することができる。 In addition, the lighting device of the present invention may further include a relay substrate to which a plurality of light sources arranged in a row are connected.
Specifically, this relay board is electrically connected to an electric cable connected to the socket of each light source. For example, in the above embodiment, the relay board is provided in the accommodation space S to be protected from heat. it can.
　また、前記実施形態では、発光部をソケットに接続する態様を説明したが、発光部にソケットを介さずに電気ケーブルを接続しても良いし、発光部を中継基板に接続しても良い。このような場合には、電気ケーブルや中継基板が被接続部である。 In the above embodiment, the mode in which the light emitting unit is connected to the socket has been described. However, an electric cable may be connected to the light emitting unit without using the socket, or the light emitting unit may be connected to the relay substrate. In such a case, an electric cable or a relay board is the connected part.
　その上、前記実施形態の照明装置は、検査用途に用いられるハロゲンランプであったが、検査用途に限らず一般用途等としても良いし、ハロゲンランプ以外にも、クリプトンランプや白熱灯やＵＶランプ等であっても良い。 In addition, the illumination device of the above embodiment is a halogen lamp used for inspection purposes. However, the lighting device is not limited to inspection purposes, and may be used for general purposes. In addition to halogen lamps, krypton lamps, incandescent lamps, and UV lamps Etc.
　その他、本願発明は前記実施形態に限られず、その趣旨を逸脱しない範囲で種々の変形が可能である。 In addition, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
１００・・・照明装置
ＥＬ　・・・電気ケーブル
１０　・・・ケーシング
Ｘ　　・・・光取出し口
２０　・・・光源
２１　・・・フィラメント
２２　・・・収容体
２２１・・・外側周面
２０Ａ・・・発光部
２０Ｂ・・・ソケット
２５　・・・チップ
６０　・・・遮蔽部材
Ｓ　　・・・収容空間 DESCRIPTION OF SYMBOLS 100 ... Illuminating device EL ... Electric cable 10 ... Casing X ... Light extraction opening 20 ... Light source 21 ... Filament 22 ... Container 221 ... Outer peripheral surface 20A ... -Light emitting part 20B ... Socket 25 ... Chip 60 ... Shielding member S ... Storage space
　本発明によれば、フィラメントを用いた光源を備える照明装置において、対象物に照射する光の集光性や均一性を制御し易くするとともに、ソケット等の被接続部を熱から保護することができ、なおかつ対象物に照射する光の強度分布をよりフラットにすることができる。
  ADVANTAGE OF THE INVENTION According to this invention, in an illuminating device provided with the light source using a filament, while making it easy to control the condensing property and uniformity of the light irradiated to a target object, to-be-connected parts, such as a socket, can be protected from a heat | fever. In addition, the intensity distribution of light applied to the object can be made flatter.

Claims (12)

  1. 　１列又は複数列に並べられた複数の光源と、前記光源を収容するとともに、前記光源からの光を取り出すための光取出し口が形成されたケーシングとを具備する照明装置であって、
    　前記光源が、フィラメントを筒状の収容体に収容してなる発光部及び前記発光部が接続される被接続部を有し、前記収容体の外側周面から射出された光が前記光取出し口から取り出される姿勢で配置されており、
    　前記被接続部の少なくとも一部を覆うとともに、前記発光部から射出されて前記被接続部に向かう光を遮蔽する遮蔽部材をさらに具備している照明装置。     A lighting device comprising: a plurality of light sources arranged in one row or a plurality of rows; and a casing that houses the light sources and is formed with a light outlet for taking out light from the light sources,
    The light source has a light emitting part in which a filament is accommodated in a cylindrical container and a connected part to which the light emitting part is connected, and light emitted from the outer peripheral surface of the container is the light extraction port. Is placed in a posture to be taken out from,
    The lighting device further includes a shielding member that covers at least a part of the connected part and shields light emitted from the light emitting part and directed to the connected part.
  2. 　前記フィラメントに電流を供給するための電気ケーブルが前記被接続部に接続された状態において、前記遮蔽部材が、前記電気ケーブルの少なくとも一部を覆うとともに、前記発光部から射出されて前記電気ケーブルに向かう光を遮蔽する請求項１記載の照明装置。 In a state where an electric cable for supplying current to the filament is connected to the connected part, the shielding member covers at least a part of the electric cable and is emitted from the light emitting part to the electric cable. The illuminating device of Claim 1 which shields the light which goes.
  3. 　前記遮蔽部材が、前記光源の配列方向に沿って延びる長尺状のものであり、１列に含まれる前記各光源の前記被接続部を覆っている請求項１記載の照明装置。 The illuminating device according to claim 1, wherein the shielding member has a long shape extending in the arrangement direction of the light sources and covers the connected portions of the light sources included in one row.
  4. 　前記遮蔽部材が前記ケーシングに固定されており、該遮蔽部材に前記被接続部が取り付けられている請求項１記載の照明装置。 The lighting device according to claim 1, wherein the shielding member is fixed to the casing, and the connected portion is attached to the shielding member.
  5. 　前記遮蔽部材が、前記被接続部を収容するとともに空気が流入出可能な収容空間を形成している請求項１記載の照明装置。 The lighting device according to claim 1, wherein the shielding member accommodates the connected portion and forms an accommodating space through which air can flow in and out.
  6. 　列状に並べられた複数の前記光源が、前記収容体の外側周面が前記光取出し口に対向する姿勢で配置されている請求項１記載の照明装置。 The lighting device according to claim 1, wherein the plurality of light sources arranged in a row are arranged in a posture in which an outer peripheral surface of the container faces the light extraction port.
  7. 　列状に並べられた複数の前記光源が、配列方向と前記収容体の軸方向とが直交する姿勢で配置されている請求項１記載の照明装置。 The lighting device according to claim 1, wherein the plurality of light sources arranged in a row are arranged in a posture in which an arrangement direction and an axial direction of the container are orthogonal to each other.
  8. 　列状に並べられた複数の前記光源が、前記収容体の先端が互いに同じ向きになる姿勢で配置されている請求項１記載の照明装置。 The lighting device according to claim 1, wherein the plurality of light sources arranged in a row are arranged in a posture in which tips of the containers are in the same direction.
  9. 　列状に並べられた複数の前記光源が、配列方向に沿って互いに隣り合う前記光源の前記収容体の先端が互いに逆向きになる姿勢で配置されている請求項１記載の照明装置。 The lighting device according to claim 1, wherein the plurality of light sources arranged in a row are arranged in a posture in which tips of the containers of the light sources adjacent to each other along the arrangement direction are opposite to each other.
  10. 　前記光源が、赤外波長を含む光を射出するものであり、
    　前記遮蔽部材が、赤外波長の光を反射させる材質で形成されている請求項１記載の照明装置。     The light source emits light including infrared wavelengths;
    The lighting device according to claim 1, wherein the shielding member is made of a material that reflects light having an infrared wavelength.
  11. 　前記光取出し口に対向して設けられ、前記発光部から射出された光を反射させる反射部材をさらに具備し、
    　前記反射部材が、前記遮蔽部材と一体的に設けられている請求項１記載の照明装置。     A reflection member that is provided opposite to the light extraction port and reflects the light emitted from the light emitting section;
    The lighting device according to claim 1, wherein the reflecting member is provided integrally with the shielding member.
  12. 　前記光源、前記反射部材、前記遮蔽部材、及び前記光源を制御する回路基板が、これらが一体化されてなるユニット構造体を構成している請求項１１記載の照明装置。 The lighting device according to claim 11, wherein the light source, the reflecting member, the shielding member, and a circuit board for controlling the light source constitute a unit structure in which these are integrated.
PCT/JP2018/022336 2017-06-12 2018-06-12 Illumination device WO2018230540A1 (en)

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