WO2000006942A1 - Ensemble projecteur - Google Patents

Ensemble projecteur Download PDF

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Publication number
WO2000006942A1
WO2000006942A1 PCT/JP1999/004118 JP9904118W WO0006942A1 WO 2000006942 A1 WO2000006942 A1 WO 2000006942A1 JP 9904118 W JP9904118 W JP 9904118W WO 0006942 A1 WO0006942 A1 WO 0006942A1
Authority
WO
WIPO (PCT)
Prior art keywords
shutter
light source
source device
light
plate
Prior art date
Application number
PCT/JP1999/004118
Other languages
English (en)
Japanese (ja)
Inventor
Moriyuki Ito
Original Assignee
Hamamatsu Photonics K.K.
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
Priority claimed from JP21799598A external-priority patent/JP4112694B2/ja
Priority claimed from JP21799698A external-priority patent/JP3488635B2/ja
Application filed by Hamamatsu Photonics K.K. filed Critical Hamamatsu Photonics K.K.
Priority to AU49316/99A priority Critical patent/AU4931699A/en
Publication of WO2000006942A1 publication Critical patent/WO2000006942A1/fr

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0006—Coupling light into the fibre

Definitions

  • the present invention relates to a spot light source device that emits light.
  • a reflection mirror such as an elliptical condensing mirror
  • a fiber or the like connected to the output port. It is emitted to the outside by light means (light guide).
  • the condensed light should be blocked on the optical axis in order to control the light guide and emission ON / OFF from the reflection mirror to the exit port without turning the discharge tube to 0 N / 0 FF.
  • a shutter that controls the passage of light is used.
  • a rotary solenoid is used as shutter driving means for driving and controlling the shutter.
  • a spot light source device for example, there is a device disclosed in Japanese Patent Application Laid-Open No. 1-75069. Disclosure of the invention
  • Fig. 8 shows an example of such a spot light source device in a conventional shirt and its ON / OFF operation.
  • the shutter 6 is composed of a shirt evening plate 60 and a shutter driving unit 61, and the shirt evening plate 60 having a predetermined shape is connected to a shutter driving unit 61 including a mouth and a solenoid. Then, the drive is controlled.
  • the rotation axis 6 la of the rotation drive of the shirt 6 is set parallel to the optical axis of the emitted light, and the shutter plate 60 of the shutter 6 is driven at a rotation angle S by this axis. ON / OFF of light emission is performed.
  • FIG. 1 ON / OFF of light emission is performed.
  • the position of the shirt evening board 60 when ON is indicated by a solid line, and the position when OFF is indicated by a dotted line.
  • the position at the time of ON is confirmed by detecting the protrusion 60a provided on the shirt evening plate 60 by the position sensor 61b.
  • the shutter driving unit 61 becomes large, which is a problem in reducing the size of the spot light source device. . That is, when the rotation axis is parallel to the optical axis, the distance 1 between the rotation axis 61 a of the shutter driving unit 61 and the center of the optical axis. However, since this is a direction perpendicular to the rotation axis 61 a, the rotation radius of the shirt 60 is directly changed, and the rotation radius is increased. 1. When the angle is reduced, the rotation angle 0 must be increased in order to have a sufficiently large area through which the light can pass while the light emission is ON. As a result, the shirt driving unit 6 1 It is not possible to reduce the load on the shutter and to downsize the shutter drive unit 61.
  • the shutter driving unit 61 As described above, when the size of the shutter 6 is increased and the load on the shutter driving unit 61 is large, the amount of heat generated by the driving of the shutter driving unit 61, the operation sound, vibration, and the like increase, and as a result, the shutter The drive section 61 is liable to be deteriorated, which causes a decrease in reliability in long-time operation.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a spot light source device which has a small size, can operate at high speed, and has a stable shirt.
  • a spot light source device includes a discharge tube that emits light, a reflection mirror that reflects light emitted from the discharge tube, a discharge tube, and a reflection mirror. And a housing provided in the housing, and an emission port provided on the emission surface of the housing for emitting light from the reflection mirror.
  • the discharge tube and the reflection mirror and the emission surface of the housing are provided. In between, a light source region on the surface side facing the emission surface inside the housing including the discharge tube and the reflection mirror is separated from an output region on the emission surface side inside the housing, and a shield having an opening through which light passes.
  • It has a plate, a shutter plate installed between the shielding plate and the emission port in the output area, and shutter driving means for rotating and driving the shutter plate, and switches ON / OFF of light emission.
  • a shirt driving plate wherein the shutter driving plate is rotatably driven by shutter driving means around an axis perpendicular to the optical axis of the emitted light.
  • the distance between the rotation axis part of the drive of the shirt driving means and the center of the optical axis is used as the rotation axis. It can be a shutter with a parallel turning direction, a small turning radius of the shirt and a small turning angle. As a result, the moment for driving the shutter plate is reduced, and the load on the shutter driving means is reduced. A spot light source device can be realized.
  • FIG. 1 is a top view showing a first embodiment of a UV spot light source device.
  • FIG. 2 is a cross-sectional view taken along the line I-I of the UV spot light source device shown in FIG.
  • FIG. 3 is a perspective view showing a configuration of a shutter used in the UV spot light source device shown in FIG.
  • FIG. 4 is a perspective view of the UV spot light source device shown in FIG. 1 with a housing cover and an inner box removed.
  • FIG. 5 is a perspective view of the UV spot light source device shown in FIG. 1 with an inner box mounted.
  • FIG. 6 is a perspective view of the UV spot light source device shown in FIG. 1 with a housing cover attached.
  • FIG. 7 is a perspective view showing a second embodiment of the UV spot light source device with a housing cover and an inner box removed.
  • FIG. 8 is a perspective view showing a configuration of a shutter used in a conventional spot light source device.
  • one side surface of the housing is set as an emission surface.
  • each surface of the housing constituting the outer surface of the spot light source device has a bottom surface and a top surface, and the other four surfaces are provided with emission ports facing the discharge tube and the opening of the reflection mirror.
  • the emission surface is the front surface, the surface opposite to the emission surface is the rear surface, the left side of the front surface is the left side surface, and the right side is the right side surface.
  • FIG. 1 is a top view showing a schematic configuration of a UV spot light source device according to the first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the UV spot light source device shown in FIG.
  • the housing 1 in the present embodiment includes a housing base 11 and a housing cover 12, but the housing cover 12 is not shown in FIGS. An inner box 18 described later is not shown here.
  • the front surface is l a
  • the rear surface is l b
  • the left side surface is 1 c
  • the right side surface is l d
  • the bottom surface is l e
  • the top surface is If.
  • the housing base 11 constitutes the front 1a, the rear 1b and the bottom 1e of the housing 1
  • the housing cover 1 2 comprises the left side 1c and the right side 1 of the housing 1. Construct d and upper surface 1f.
  • the inside of the housing 1 is divided into left and right regions by a partition plate 14, the left region is a light irradiation system region, and an optical system such as a discharge tube is installed, while the right region is a drive system.
  • a driving device 13 for driving and controlling the discharge tube (specifically, (Not shown).
  • the driving device 13 may be connected to, for example, a panel installed at a predetermined position on the front surface 1a of the housing 1 and operated by an operator.
  • the light irradiation system area is further divided into a rear light source area B and a front output area C by a shielding plate 41 (for a spot light source device provided with a shielding plate and a shielding member, for example, See Japanese Patent Application Laid-Open No. Hei 9-91281).
  • the shielding plate 41 is provided with an opening 4la, and is configured so that light other than the light passing through the opening 41a does not enter the output region C from the light source region B.
  • the discharge tube 2 that emits ultraviolet light is positioned inside the reflection mirror 21, which is an elliptical condensing mirror whose opening is directed toward the front surface 1 a of the housing 1. is set up.
  • the reflection mirror 21 is fixed and installed by a reflection mirror fixing plate 21a.
  • an emission port 2 2 which is an opening for emitting ultraviolet light from the reflection mirror 21.
  • a fiber insertion port 23 is connected to the outside thereof.
  • the ultraviolet light emitted from the discharge tube 2 is reflected by the inner surface of the reflecting mirror 21 toward the opening, passes through the opening 41 a of the shielding plate 41, and enters the output area C. Is done.
  • the ultraviolet light that has reached the emission port 22 is emitted to the outside by a fiber 25 that is a light guide connected to the fiber insertion port 23.
  • the emitted light can be guided by the light guide in this way, but in this case, a light guide having the form and performance according to the application such as the above-mentioned fiber is applied. As a result, efficient light emission and utilization can be achieved.
  • an ultraviolet transmitting filter 24 is provided so as to cover the opening 41a.
  • the opening 41a of the shielding plate 41 is formed as a circular opening 41a around the optical axis of the emitted ultraviolet light (hereinafter simply referred to as the optical axis).
  • shielding plate 4 The bottom surface 1 e side of the housing 1 of 1 is formed in an L-shape, and is fixed to the bottom surface 1 e of the housing 1 by a bottom portion 4 1 b in contact with the bottom surface 1 e.
  • a shirt 5 for controlling ON / OFF of ultraviolet light emission is provided between the shield plate 41 and the emission port 22 in the output area C.
  • the shirt 5 includes a shirt 50 and a shutter drive unit 51 including a stepping motor. Stepping motors have low operating noise and vibration, and high stability.
  • the shutter driver 51 to which the shirt 50 is connected is fixed to the L-shaped bottom 41 b of the shielding plate 41, and the axis perpendicular to the optical axis is used as the rotation axis.
  • Plate 50 is connected and driven. 1 and 2, the position of the shutter plate 50 indicates a state where the ultraviolet light emission is 0 N, and in FIG. 1, the state where the ultraviolet light is 0 FF is indicated by a dotted line.
  • an intensity adjusting means (a diaphragm mechanism) may be further provided between the shutter 5 and the emission port 22.
  • the cylindrical shielding member 40 is fixed to the shielding plate 41 so that the cylindrical shielding member 40 projects in the direction of the front surface 1a of the housing 1. Installed.
  • the cylindrical shielding member 40 has a light guide portion 40a inside, and a cross section of the light guide portion 40a in the direction of the optical axis is directed toward the emission port 22 as shown in FIG. It is formed in a truncated cone shape with a small opening and a tapered trapezoid shape. The center of the truncated cone is aligned with the optical axis in the output area C between the shielding plate 41 and the emission port 22. It is connected to the shielding plate 41 and installed.
  • the configuration is such that the ultraviolet light is incident on the output area C only when passing through the opening 41 a of the shielding plate 41 and the light guide 40 a of the cylindrical shielding member 40.
  • This not only limits the position of ultraviolet light passing through the shielding plate 41 with respect to the ultraviolet light incident on the output area C, but also the ultraviolet light that has passed through the opening 41 a of the shielding plate 41.
  • Light is incident on the light by the light guide 40 a of the cylindrical shielding member 40.
  • the direction and angle can also be limited. This makes it possible to suppress the leakage of ultraviolet light from between the opening 41 a of the shielding plate 41 and the shirt 50, and to more effectively and reliably shield and emit ultraviolet light.
  • NZO FF can be performed.
  • FIG. 3 is an enlarged perspective view showing the configuration of the shutter 5 used in the UV spot light source device shown in FIGS. 1 and 2.
  • the cylindrical shielding member 40 is broken, and only the tip portion is shown in FIG.
  • the shutter drive unit 51 using a stepping motor is configured so that the rotation axis 51 a perpendicular to the optical axis is used as the rotation drive axis, and can be driven to rotate in both left and right rotation directions. ing. Specifically, for example, the direction of the rotation drive can be reversed by reversing the current supplied to the stepping motor.
  • the rotary shaft 5 la is turning radius 1 2 shirt evening first plate connecting portion 5 lb is connected to be driven in a plane perpendicular to the rotation shaft 5 1 a.
  • Shutter plate 5 0 has a ing shape from a portion of a radius 1 2 of a cylinder about the rotation axis 5 1 a, shirt evening perpendicular to one plate connecting portion 5 1 b, thus times It is mounted parallel to the turning shaft 51a and is driven to rotate at a rotation angle 6> to perform ONZOFF of light emission.
  • FIG. 3 for the shutter plate 50 and the shutter plate connection portion 5 lb, the position when ON is indicated by a solid line, and the position when OFF is indicated by a dotted line.
  • the stepping motor of the shutter drive unit 51 is set with two drive steps corresponding to the two states of light emission ON / OFF, and the light emission is turned ON by rotational driving in both rotation directions. / OFF is switched.
  • the shutter drive means can drive only in one direction as in the past, for example, when the shutter drive means is not energized, the shutter plate is in the position where light emission is OFF, and the shutter When the drive means is energized, the shirt evening board emits light.
  • the shutter can be configured to be driven to the ON position, but when the light emission is ON and the spot light source device is in use, the shutter drive means is continuously energized. Therefore, the heat generation and the deterioration of the driving means of the shirt due to the heat are particularly problematic.
  • the shirt evening driving section 51 is driven only when the light emission is switched ON / OFF, and deterioration due to the driving is minimized.
  • a shutter driving unit for example, a unit other than a stepping motor such as a rotary solenoid configured to be rotatable in both rotation directions may be used. .
  • the shirt evening plate 50 having a small turning radius of the shirt evening plate 50 and a small rotation angle. That is, since the rotation axis 5 la is perpendicular to the optical axis, the distance 1 i between the rotation axis 51 a of the shutter drive unit 51 and the center of the optical axis is parallel to the rotation axis 51 a. . Accordingly, the distance 1 is not related to the turning radius, the radius of rotation of the shirt evening first plate 5 0 driving, shirts evening the turning radius 1 2 one plate connecting portion 5 1 b. In this case, the distance can be reduced while keeping the rotation angle 0 constant, and the shutter plate 50 can be reduced in size.
  • the rotation radius 1 2 also, the rotation radius 1 in the conventional shirt evening one shown in FIG. Compared with, it can be made much smaller. That is, in the case of the conventional shutter 6 shown in FIG. 8, the range in the radius direction of rotation of the region through which light passes is, for example, 1 Q ⁇ ⁇ 1.
  • the required rotation angle 0 is determined by the operation of the shutter plate 60 at a distance closer to the rotation axis 61a than the rotation axis 61a. 1. Since ⁇ 1 remains constant even when is reduced, The required rotation angle 0 increases rapidly compared to the rate of decrease.
  • FIGS. 4, 5, and 6 show perspective views of the UV spot light source device according to the present embodiment.
  • FIG. 4 shows the inside of the UV spot light source device with the housing cover 12 and the inner box 18 removed.
  • FIG. 5 is a perspective view showing a schematic configuration
  • FIG. 5 is a perspective view showing a schematic configuration inside the UV spot light source device with the inner box 18 attached
  • FIG. 6 is a UV spot with the housing cover 12 attached.
  • FIG. 3 is a perspective view illustrating a schematic configuration of an outer surface of the light source device.
  • the fixing members such as the columns connected behind the reflecting mirror-fixing plate 2 la, the connection method between the discharge tube 2 and the driving device 13 and the like are not shown.
  • the inner box 18 for shielding extra light radiated from the discharge tube 2 and causing reflection and scattering at each part of the light source area B without being guided to the output area C has a rear face 18 b (see FIG. (Not shown), left side 18c and top 18f.
  • the front side is the shielding plate 41
  • the right side is the partition plate 14
  • the bottom side is the housing 1 It is composed of the bottom surface 1e to realize shielding as shown in Fig.5.
  • a ventilation port 16 is provided as shown in FIG. Further, a fan 15 is provided at a predetermined portion of the rear surface 1b of the housing base 11 facing the drive system region A.
  • the outside air introduced from the ventilation port 16 cools parts such as the shielding plate 41, the cylindrical shielding member 40, the shutter plate 50 of the shutter 5, and the shutter driving unit 51. After passing through the upper part of the partition plate 14 or the left side and the upper part of the inner box 18, it flows into the drive system area A and is exhausted from the fan 15.
  • cylindrical shielding member 40 By installing the cylindrical shielding member 40, even when the ventilation port 16 is provided on the side surface of the housing as shown in FIG. 6, light is shielded so that light leakage does not occur. Further, the cylindrical shielding member 40 protruding into the output area C itself also functions as a radiating fin, and the shielding plate 41 heated by shielding light and The cooling of the cylindrical shielding member 40 is effectively performed.
  • the housing 1 and the inner box 18 are installed so that a space is provided between the left side 1 c of the housing 1 and the left side 18 c of the inner box 18.
  • a ventilation hole 17 is provided at a predetermined portion facing the light source area B on the left side surface 1 c of the housing cover 12. May be provided.
  • FIG. 7 is a perspective view of the UV spot light source device according to the second embodiment of the present invention with the housing cover 12 and the inner box 18 removed, and the UV spot light source device shown in FIG.
  • a shielding cover 42 is provided between the shirt evening plate 50 and the emission port 22 so as to cover the cylindrical shielding member 40 and the shirt evening plate 50.
  • the shielding cover 42 is formed in a semi-cylindrical shape such that the shutter plate 50 is driven along the inner wall thereof, and is provided on the light exit portion 22 a side of the light guide portion 40 a of the cylindrical shielding member 40.
  • An opening 42a of a predetermined size is formed at a position facing the opening.
  • the spot light source device is not limited to the UV spot light source device as described above, but can be applied to spot light source devices of various forms and uses, for example, a visible light spot light source device.
  • the rotation axis of the shutter may have various configurations depending on the configuration and shape of other components and parts in the output area, such as a configuration in which the shutter is on the exit side with respect to the shirt plate. it can.
  • the spot light source device is small, capable of high-speed operation, and can be used as a spot light source device having a highly stable shutter, such as a UV spot light source.
  • a spot light source device having a highly stable shutter such as a UV spot light source.
  • a shirt for switching light emission ON / OFF By using a shutter configured with the axis perpendicular to the optical axis of the emitted light as the rotation axis, the rotation radius and rotation angle of the rotation drive were small, and the shutter with a reduced load on the shutter drive unit was used.
  • a spot light source device capable of operating stably for a long time can be realized.

Abstract

Dans un obturateur (5), un arbre rotatif, servant à entraîner en rotation une plaque d'obturateur (5), est perpendiculaire à l'axe optique de la lumière émise et est relié, de façon à permettre un entraînement, à une section d'entraînement d'obturateur (51) conçue pour réaliser un entraînement en rotation dans le sens horaire et dans le sens anti-horaire. L'obturateur (5) peut être conçu de façon telle que son rayon de rotation et son angle de rotation soient petits. Ce dispositif permet d'obtenir un ensemble projecteur dont l'obturateur subit une charge réduite au niveau de sa section d'entraînement d'obturateur (51), cela pour permettre à l'obturateur (5) d'avoir une taille plus petite, ce qui garantit un fonctionnement stable et fiable à long terme d'ouverture/de fermeture, pour l'émission de lumière.
PCT/JP1999/004118 1998-07-31 1999-07-30 Ensemble projecteur WO2000006942A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU49316/99A AU4931699A (en) 1998-07-31 1999-07-30 Spot light source device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10/217995 1998-07-31
JP10/217996 1998-07-31
JP21799598A JP4112694B2 (ja) 1998-07-31 1998-07-31 スポット光源装置
JP21799698A JP3488635B2 (ja) 1998-07-31 1998-07-31 スポット光源装置

Publications (1)

Publication Number Publication Date
WO2000006942A1 true WO2000006942A1 (fr) 2000-02-10

Family

ID=26522336

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/004118 WO2000006942A1 (fr) 1998-07-31 1999-07-30 Ensemble projecteur

Country Status (2)

Country Link
AU (1) AU4931699A (fr)
WO (1) WO2000006942A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6859454B1 (en) 1999-06-30 2005-02-22 Broadcom Corporation Network switch with high-speed serializing/deserializing hazard-free double data rate switching
US7782891B2 (en) 1999-03-17 2010-08-24 Broadcom Corporation Network switch memory interface configuration

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178597A (en) * 1974-12-19 1976-07-08 Rodenstock Optik G Hikentai oyobi kankyoyoshomeito kameraatatsuchimentoojusuru gankakansatsusochotajukogen
JPS51125510A (en) * 1975-04-07 1976-11-02 Sun Chemical Corp Lamp device for hardening photoopolymelizable substance
JPS5383371A (en) * 1976-12-28 1978-07-22 Fuji Photo Optical Co Ltd Endoscope lighr source
JPS53143219A (en) * 1977-05-19 1978-12-13 Yutaka Mouri Revolving focal plain shutter
JPS5745838A (en) * 1980-09-03 1982-03-16 Olympus Optical Co Light source apparatus of endoscope
JPS5763338U (fr) * 1980-09-30 1982-04-15
JPS61177420A (ja) * 1985-02-02 1986-08-09 Olympus Optical Co Ltd 内視鏡用光源装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178597A (en) * 1974-12-19 1976-07-08 Rodenstock Optik G Hikentai oyobi kankyoyoshomeito kameraatatsuchimentoojusuru gankakansatsusochotajukogen
JPS51125510A (en) * 1975-04-07 1976-11-02 Sun Chemical Corp Lamp device for hardening photoopolymelizable substance
JPS5383371A (en) * 1976-12-28 1978-07-22 Fuji Photo Optical Co Ltd Endoscope lighr source
JPS53143219A (en) * 1977-05-19 1978-12-13 Yutaka Mouri Revolving focal plain shutter
JPS5745838A (en) * 1980-09-03 1982-03-16 Olympus Optical Co Light source apparatus of endoscope
JPS5763338U (fr) * 1980-09-30 1982-04-15
JPS61177420A (ja) * 1985-02-02 1986-08-09 Olympus Optical Co Ltd 内視鏡用光源装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7782891B2 (en) 1999-03-17 2010-08-24 Broadcom Corporation Network switch memory interface configuration
US6859454B1 (en) 1999-06-30 2005-02-22 Broadcom Corporation Network switch with high-speed serializing/deserializing hazard-free double data rate switching

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