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WO1992002840A1 - Instrument d'imagerie permettant l'observation d'un objet grossi - Google Patents

Instrument d'imagerie permettant l'observation d'un objet grossi Download PDF

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Publication number
WO1992002840A1
WO1992002840A1 PCT/JP1991/001021 JP9101021W WO9202840A1 WO 1992002840 A1 WO1992002840 A1 WO 1992002840A1 JP 9101021 W JP9101021 W JP 9101021W WO 9202840 A1 WO9202840 A1 WO 9202840A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
light source
incident
guide
source means
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP1991/001021
Other languages
English (en)
Japanese (ja)
Inventor
Masao Yamamoto
Katuyuki Igarashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scalar Corp
Original Assignee
Scalar Corp
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 JP20138690A external-priority patent/JPH0486718A/ja
Priority claimed from JP20138590A external-priority patent/JPH0486717A/ja
Priority claimed from JP2224329A external-priority patent/JP2950946B2/ja
Priority claimed from JP2224330A external-priority patent/JP2950947B2/ja
Application filed by Scalar Corp filed Critical Scalar Corp
Publication of WO1992002840A1 publication Critical patent/WO1992002840A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/06—Means for illuminating specimens

Definitions

  • Imaging device for magnifying observation
  • the present invention can be used in various fields such as medical, academic, and industrial fields, for example, by processing the outer surface or surface layer of an observation object such as human skin, microscopic organisms, or integrated circuits in the same position as it is.
  • TECHNICAL FIELD The present invention relates to an image pickup device for magnifying observation that can be magnified and observed without performing image processing. (Background technology)
  • Japanese Patent Publication Nos. 26642/2001 and 305852/27 or U.S. Pat.No. 4,930,851 describe an imaging device for magnifying observation. Have been.
  • imaging devices are used by reproducing an image of an observation object taken by the imaging device on a display, that is, a display means, for observation.
  • a display that is, a display means
  • - Stand-free observation that is, an observation device itself like a conventional microscope. Requires a state in which the object is fixed in a predetermined prone position.
  • the imaging tool is moved to the side of the observation target.
  • ⁇ ⁇ which can be easily carried by anyone without any skill or skill, e.g., 50x to 100x It is capable of magnifying observations at a high magnification of 0x.
  • the illumination light that illuminates the observation object generally includes the incident light that illuminates the observation object from the front and the steep angle that is almost parallel to the front of the observation object
  • transmitted light that illuminates the surface layer from the inside with light transmitted inside.
  • the incident light is suitable for the whole observation, but is easily affected by the reflected light from the surface of the observation object, and the side light is shaded so that it cannot be seen only by the incident light.
  • the transmitted light can be used only for translucent objects.However, it is possible to observe the surface of the object with a certain depth in shadow. Each has its own strengths and weaknesses. Therefore, if these lights can be freely selected and appropriately combined, more effective observation can be performed.
  • the aforementioned Japanese Patent Publication No. 308527/1999 discloses one of them, in which a converging guide is formed in a hemispherical or hemispherical shape, so that side light (horizontal light) is generated.
  • the main component is that the incident light and transmitted light are appropriately combined to enable good observation.
  • the technology of the above-mentioned U.S. Pat. No. 4,930,851, which is another one, enables selection of image light, and enables more versatile observation. I have. However, none of them can select illumination light.
  • an object of the present invention is to provide an imaging device capable of selecting the type of illumination light.
  • a front portion has a hemispherical shape, an irradiation hole is formed at the center thereof, and a base end surface is formed at a base end surface through which illumination light from the light source means can enter the solid interior.
  • Light guide at the tip the observation area of the observation object illuminated by the illumination light from the focusing guide is formed into an image by the optical means on the imaging means, and is incident on the base end face of the focusing guide. Surfaces and reflection surfaces are formed alternately, and illumination light from light source means is selectively applied to the entrance surface and the reflection surface.
  • the illumination light provided by the light source means passes through the inner space of the converging guide, the incident light illuminates the observation object from the front through the irradiation hole, and the solid reflection inside the converging guide.
  • Side light that irradiates the observation object at a steep angle near parallel to the front by emitting through the inner surface of the irradiation hole, and irradiates the observation object from a part other than the irradiation hole and once the surface layer
  • transmitted light that illuminates the observation object from the inside is obtained. Then, by selectively irradiating the illumination light from the light source means to the entrance surface and the reflection surface formed on the base end surface of the light guide, it is possible to select either the incident light or the side incident light.
  • both can be combined in an appropriate ratio. That is, if the illumination light from the light source means is applied only to the reflecting surface, only the incident light is obtained, and if it is applied only to the incident surface, only the side incident light is obtained. If the light is applied to both surfaces at an appropriate ratio, the incident light and the side light can be combined at an appropriate ratio.
  • a mask body is interposed between the light source means and the base end face of the focusing guide, and the light from the light source means is selectively applied to the incident surface and the reflection surface by operating the mask body.
  • the light source means is formed in two systems of a side light source means and an incident light source means, and the side light source means is provided on the incident surface, and the incident light source is provided.
  • the light sources can be selectively turned on and off by associating the means with the reflecting surfaces.
  • Each of the imaging devices is divided into a detachable front block and a rear block, and an optical unit and a light source of a light source unit are incorporated in the front block, and signals from the imaging unit and the imaging unit are stored in the rear block.
  • the signal processing means for processing and outputting the processed signal to the display means may be incorporated.
  • the incorporation of the light source and the signal processing means into the imaging device means that the light source becomes closer to the object to be observed when it comes to the light source, so that the output of the light source can be smaller, and the light source itself can be used.
  • the signal processing means is much closer to the imaging means, so that the capacity of the signal processing means can be much smaller than in the conventional case. This leads to a significantly smaller signal processing means.
  • the incorporation of the light source and the signal processing means into the imaging device leads to the downsizing of the light source and the signal processing means, and the organic association that this downsizing also allows the incorporation leads to the overall downsizing. Is what it is.
  • FIG. 1 is a perspective view showing a relationship between a light guide means, a mask body, and a light collecting guide.
  • FIG. 2 is a partial cross-sectional view of the imaging device.
  • FIG. 3 is a plan view seen from the direction indicated by arrow A in FIG.
  • FIG. 4 is an explanatory diagram of a case where illumination light is incident on an incident surface.
  • FIG. 5 is an explanatory diagram of a case where illumination light is incident on a reflecting surface.
  • Fig. 6 is a side view of the imaging device.
  • FIG. 7 is a perspective view showing a relationship between the light guide means and the light collecting guide.
  • FIG. 8 is a partial cross-sectional view of the imaging device.
  • FIG. 9 is a plan view seen from the direction of arrow B in FIG.
  • FIG. 10 is an explanatory diagram of a case where illumination light is incident on an incident surface.
  • FIG. 11 is an explanatory diagram of a case where illumination light is applied to a reflecting surface.
  • FIG. 12 is a side view including a partial cross section of the imaging device.
  • FIG. 13 is a partial cross-sectional view of the distal end portion of the imaging device.
  • FIG. 14 is a perspective view showing the relationship between a light-condensing guide, a mask body, and a light source.
  • FIG. 15 is an explanatory diagram of a case where illumination light is incident on the incident surface.
  • FIG. 16 is an explanatory diagram of a case where illumination light is incident on a reflecting surface.
  • FIG. 17 is a side view including a partial cross section of the imaging device.
  • FIG. 18 is a partial cross-sectional view of the distal end portion of the imaging device.
  • FIG. 19 is a perspective view showing the relationship between the light-condensing guide and the light source.
  • FIG. 20 is an explanatory diagram of a case where illumination light is incident on an incident surface.
  • FIG. 21 is an explanatory diagram of a case where illumination light is incident on a reflecting surface.
  • an imaging device 1 includes an imaging device main body 2, a light-condensing guide 3, a light-shielding eave 4, and a mask body 5 (FIGS. 1 and 2). .
  • the imaging device main body 2 is a cylindrical one having a built-in light guide means 6 and an optical means 7 for enlarging an image of the observation object M.
  • an imaging device 8 (CCD device) is further built in.
  • the signal is By c, it is sent to an observation display via a processing device (not shown), and this observation display enables magnification observation of 50 to thousands times.
  • the light guide means 6 guides illumination light from a light source provided in an amplifier (not shown), and forms a light source means together with the light source.
  • the light guide means 6 forms an illuminating means together with the condensing guide 3 described later.
  • the light guide means 6 is formed of a large number of optical fibers 19.
  • the ends of the optical fibers 9 are arranged in an annular shape at the connection between the imaging device main body 2 and the light-condensing guide 3, and each of the optical fibers 9 arranged in this circular shape is
  • the base 3 faces the base end face 10 of the base 3.
  • the optical fibers 19 are sparsely shown in FIG. 1 and FIG. 2, they are actually arranged densely as shown in FIG.
  • the focusing guide 3 has its tip abutted on the surface of the object M to be observed, so that the focus of the objective lens of the optical means 7 (not shown in FIGS. 1 and 2) can be adjusted.
  • the cylindrical rear part 3 r, the hemispherical front part 3 f, and the force consist of the same.
  • the base end face 10 formed at the end of the rear part 3 r has the same shape.
  • the incident surface 1 2 and the reflecting surface 1 3 A small irradiation hole 14 is formed in the front part 3 f at the center of its tip.
  • the entrance surface 12 is for allowing the illumination light from the optical fiber 19 to penetrate into the solid inside the condensing guide 3, and is made to be orthogonal to the traveling direction of the illumination light.
  • the reflecting surface 13 reflects the entire illumination light from the optical fiber 9 and guides the illumination light to the inner space between the condensing guide 3 and the light shielding eaves 4. Is in an inclined state in which the light can be totally reflected.
  • the light-shielding eaves 4 are for blocking the other light so that only the image light from the observation object M is guided to the optical means 7 of the imaging device main body 2. Although it has a cylindrical shape according to the inner surface shape, the front part 4 f is formed in a conical cylindrical shape, and a light-collecting hole 15 is formed at the tip thereof.
  • the mask body 5 is used to selectively apply the illumination light from the light guide means 6 to the entrance surface 12 or the reflection surface 13 of the base end surface 10 of the condensing guide 3.
  • 6 is a disc-like shape with four slit holes 1 ⁇ formed around the entrance surface 12 to the reflection surface 13 according to the size, arrangement interval, and number of the reflection surfaces 13. It is disposed between the distal end of the means 6 and the base end face 10 of the focusing guide 3 so as to be freely rotatable as indicated by an arrow X.
  • the illumination light passes from the incident surface 12 to the focusing guide 3.
  • the observation object M is limited to only the side emission L s that irradiates the observation object M at a steep angle close to the front of the object, and conversely. If the slit 17 is aligned only with the reflecting surface 13, as shown in FIG. 5, the illuminating light is totally reflected by the reflecting surface 13 and passes through the focusing guide 3.
  • the imaging device according to this embodiment is provided with a means for selectively applying illumination light to the entrance surface 112 and the reflection surface 113 formed on the base end surface 110 of the light-collecting guide 103 described later.
  • the only difference is the imaging device 1 according to the first embodiment.
  • the light guide means 106 d for the incident light and the light guide means 106 s for the side light are provided. It is divided into two systems. Each system is composed of a large number of optical fibers] 09 d, 109 s, and each optical fiber 109 d, 109 s has its tip collected with the imaging device main body 102. At the connection with the optical guide 103, the optical fibers 109 d and 109 s arranged in an annular shape are condensed guides for each system. Of the base end face 110 of the light-emitting element 110 face the incident surface 112 to the reflecting surface 113. Each system can selectively perform ON / OFF control of illumination light and intensity control of illumination light for each system.
  • the illumination light is totally reflected by the reflective surface 113 and the inner surface of the light-collecting guide 103 and the outer surface of the light-shielding eaves 104, as shown in Fig. 11. Only the incident light L d that illuminates the observation object M from the front from the irradiation hole 1 1 4 through the inner space between the light source and the illumination light from the side light guide means 6 s and the incident light guide light If the illumination light from the means 106 d is applied to both the entrance surface 1 1 2 and the reflection surface 1 1 3 while changing the intensity of each, the side light Ls and the incident light L d are combined at an appropriate ratio be able to.
  • the imaging device 201 is a modified example of the imaging device 1 according to the first embodiment, and is divided into a front block 203 and a rear block 204 as shown in FIG.
  • the front block 203 can be attached to and detached from the rear block 204, and the front block 203 includes optical means 205 for enlarging an observation object and a light source 200 for light source means. 6 is built-in, and the light-collecting guide 207 is connected to the tip of the camera, while the rear block 204 is used to capture an enlarged image of the observation object M obtained by the optical means 205.
  • a signal processing means 221 for processing the signal from the means 220 and the imaging means 220 is built-in.
  • the optical means 205 comprises a cylindrical holder 208 holding an objective lens 209 and other lenses, and a tip of the holder 208. — 1 o—
  • the portion is provided with a light-shielding eave 210 formed in a tapered shape.
  • the optical means 205 basically has a configuration in which the tip of the focusing guide 207 contacts the surface of the observation object M so that the focus of the objective lens 209 is adjusted to the surface of the observation object M. Non-contact observation is also possible by adjusting the positioning force ⁇ , by adjusting the screwing state of the focusing guide 207 to the front block 203.
  • the light source 206 is disposed so as to face the base end surface 21 3 of the light-collecting guide 207 at a position corresponding to the outside of the light-shielding eave 210 of the holder 208, and the light is optically transmitted. Care is taken to avoid direct entry into means 205.
  • a large number of small light emitting sources 206b may be arranged in an annular shape, or an annular lamp may be used.
  • the converging guide 207 is the same as the converging guide 3 of the first embodiment.
  • the tip of the converging guide is brought into contact with the surface of the object M to be observed.
  • the surface of the observation object M is aligned with the focal point of the observation object M, and the illumination light from the light source 206 is divided into the incident light L d, the side irradiation light L s, and the transmitted light L t and irradiates the observation object M. ( Figure 13).
  • the screw is screwed to the front end of the front block 203 by a screwing screw 214 formed on the rear portion 207 r. In this screwed state, the above-mentioned focusing is performed. ing. More specifically, as shown in FIG.
  • a mask body 21 6 similar to that of the first embodiment is provided between the base end face 2 13 of the light-collecting guide 2 07 and the light source 206, and this mask body 2 1 6 allows the same control of the illumination light as in the first embodiment.
  • this mask body 2 16 irradiates the irradiation light from the light source 206 with the incident surface 2 13 s of the base end surface 2 13 of the focusing guide 2 07 or the reflection surface.
  • the disk is formed in a disk shape with four slit holes 218 formed. It is arranged rotatably.
  • the irradiating light will be limited to the reflecting surface 2 1 It is totally reflected by 3d, passes through the space inside the light guide cap 7, and is limited to only the incident light Ld that illuminates the object M from the front from the irradiation hole 2 15 through the illumination hole 2 15 and enters the slit hole 2 18 Surface 2 1 3 s and reflective surface 2 1
  • the side light Ls and the incident light Ld can be combined at an appropriate ratio.
  • the front block 203 can be attached to and detached from the rear block 204, a plurality of special specifications corresponding to the enlargement ratio and the type of the target observation object are prepared in advance, and these special blocks are prepared. Selective things It is possible to use properly.
  • the rear block 204 is an imaging unit 220 that captures an enlarged image of the observation object M obtained by the optical unit 205, and in this example,
  • Signal processing means 221 for processing signals from the CCD element 220 and the CCD element 220 is incorporated. Also, this rear block 20
  • the imaging device 301 has a structure in which the structure of the third embodiment, which is divided into front and rear blocks, is combined with the structure of selecting illumination light by two light sources in the second embodiment. There are special features.
  • the image pickup device 301 is divided into a front block 303 and a rear block 304, and the front block 303 is arranged with respect to the rear block 304.
  • the front block 303 is provided with optical means for enlarging an object to be observed.
  • a light guide for the light source means and a light source for the light source means are built in, and a light-collecting guide is connected to the front end thereof, while the rear block is connected to the light guide.
  • the light source 303 is formed by arranging a plurality of small light-emitting sources 312 in an annular shape on the outer side of the light-shielding eave 310 toward the base end surface 13 of the light-collecting guide 3107. Eight blocks, including a fixed number of light sources 3 1 2, are blocked into eight blocks, and each block is alternately a side emission light source.
  • the light source for incident light is 300 s to 300 d
  • the light source for side light is 300 s to 300 d
  • the incident light source 3 06 d corresponds to the reflection surface 3 13 d
  • the light source for the side light source is 30 s and the light source for the incident light source
  • the side light source 300 s is turned on by operating the switch 324 s of the switches 324 s and 324 d for ONZOFF of the light sources 306 s and 306 d. If illumination light is applied only to the incident surface 3 13 s, as shown in FIG. 20, this illumination light is transmitted from the incident surface 3 13 s to the solid inside of the focusing guide 3 07. And the light passes through the inside of the irradiation hole 315 through total internal reflection and exits from the inner surface of the irradiation hole 315, so that only the side light Ls that irradiates the observation object M at a sharp angle close to the front of the object M is obtained.
  • the illumination light from 0 6 s and the illumination light from the incident light 3 0 6 d are applied to both the entrance surface 3 13 s and the reflection surface 3 13 d while changing the intensity of each, the side emission light L s and the incident light L d can be combined at an appropriate ratio. Since the other structure is the same as that of the third embodiment, the corresponding parts are denoted by the corresponding reference numerals in the 300s in the figure, and the description thereof is omitted.
  • the imaging device can select the incident light, side emission light, and transmitted light, and can combine the respective light amounts at an appropriate ratio, and use such an imaging device. This will further expand the field of application of magnification observation.

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

Instrument d'imagerie permettant l'observation d'un objet grossi par la sélection de faisceaux lumineux définis comme étant des faisceaux latéralement incidents, incidents vers le bas, et transmis. L'extrémité de l'instrument est pourvue d'un guide condenseur destiné à commander les faisceaux lumineux provenant de la source lumineuse et à éclairer un objet à observer. Des surfaces réfléchissantes et réceptrices de lumière sont disposées en alternance sur le fond dudit guide, et la lumière de la source lumineuse éclaire ces surfaces de manière sélective de sorte que l'on obtienne des faisceaux latéralement incidents lorsque la lumière éclaire les surfaces réceptrices, et des faisceaux incidents vers le bas lorsqu'elle éclaire les surfaces réfléchissantes.
PCT/JP1991/001021 1990-07-31 1991-07-31 Instrument d'imagerie permettant l'observation d'un objet grossi Ceased WO1992002840A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP20138690A JPH0486718A (ja) 1990-07-31 1990-07-31 拡大観察用の対物具
JP2/201386 1990-07-31
JP2/201385 1990-07-31
JP20138590A JPH0486717A (ja) 1990-07-31 1990-07-31 拡大観察用の対物具
JP2224329A JP2950946B2 (ja) 1990-08-28 1990-08-28 拡大観察装置
JP2/224329 1990-08-28
JP2224330A JP2950947B2 (ja) 1990-08-28 1990-08-28 拡大観察装置
JP2/224330 1990-08-28

Publications (1)

Publication Number Publication Date
WO1992002840A1 true WO1992002840A1 (fr) 1992-02-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1991/001021 Ceased WO1992002840A1 (fr) 1990-07-31 1991-07-31 Instrument d'imagerie permettant l'observation d'un objet grossi

Country Status (1)

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WO (1) WO1992002840A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61120110A (ja) * 1984-11-13 1986-06-07 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 明視野及び暗視野顕微鏡照明装置
JPS61174505A (ja) * 1984-11-19 1986-08-06 カ−ル・ツアイス−スチフツング 顕微鏡用の直接照明装置
JPH01308527A (ja) * 1988-06-07 1989-12-13 Sukara Kk 拡大撮像装置における照明用導光装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61120110A (ja) * 1984-11-13 1986-06-07 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 明視野及び暗視野顕微鏡照明装置
JPS61174505A (ja) * 1984-11-19 1986-08-06 カ−ル・ツアイス−スチフツング 顕微鏡用の直接照明装置
JPH01308527A (ja) * 1988-06-07 1989-12-13 Sukara Kk 拡大撮像装置における照明用導光装置

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