JP3157973U - Optical microscope illumination device - Google Patents

Abstract

In an optical microscope, an illumination device that can be retrofitted to an optical microscope that is inexpensive and does not originally have a configuration for dark field observation illumination or entity observation illumination, and is movable in the vicinity of an observation sample With the simple configuration arranged in, bright-field illumination and dark-field illumination can be implemented, and illumination can be obtained by switching to either the bright-field optical system or the dark-field optical system, and it is lightweight, compact, and power-saving Provided is an illumination device for a transmission microscope and a stereomicroscope that can be realized. The illumination apparatus is mounted on an existing transmission optical microscope and a stereoscopic microscope that are not originally configured for dark field illumination or stereoscopic observation illumination, thereby transmitting bright field transmission and dark field transmission. Observation and entity observation are possible, and a plurality of light sources arranged three-dimensionally are selectively turned on as necessary. In addition, changing the color type of the light source has the same effect as observing with the filter replaced. [Selection] Figure 1

Description

  The present invention relates to bright-field illumination and dark-field illumination used for an optical microscope, and entity observation illumination.

  2. Description of the Related Art Conventionally, optical microscopes include dark field microscopes that can perform dark field observation in order to observe scratches or the like on an observation sample (specimen) that is difficult to see in a bright field. An optical microscope capable of performing such dark field observation has a dark field illumination device for illuminating an observation sample (specimen).

  Conventionally, as a dark field illumination device, for example, as shown in Patent Documents 1, 2, and 3, a ring-shaped fiber is inserted into an optical path from an illumination light source to an observation sample (specimen), and ring illumination using this fiber is performed. Many devices for performing dark field illumination have been proposed.

  The dark field illumination device of Patent Document 1 is an epi-illumination device for an optical microscope that illuminates an observation sample (specimen) with an illumination light path surrounding an objective lens and illumination light guided by the dark field illumination light path. In the dark field illumination device of Patent Document 1, an annular light source that supplies illumination light to dark field illumination is provided in a revolver.

  The dark field illumination device of Patent Document 2 has a half mirror for introducing epi-illumination light and an exit end of an annular fiber between objective lenses, and an incident end of the fiber at a position conjugate with the light source in the epi-illumination system. Or the aperture stop is arranged to be switchable.

  The dark field illumination device of Patent Document 3 is provided in an optical microscope including an objective lens that is selectively disposed in an observation optical path. The dark field illumination device of Patent Document 3 is provided with a light transmission means that is detachably attached to an objective lens and includes a light incident part and a light irradiation part that irradiates an object with light from the light incident part; The light source has a light source that is mechanically separated from the light unit and emits light toward the light incident portion of the light unit.

Japanese Patent No. 3080393 “Epi-illumination device” Japanese Patent Laid-Open No. 2003-5082 “Microscope System” Japanese Patent No. 3322260 “Appearance Inspection Device”

  The dark field illumination device of Patent Document 1 requires a dark field illumination optical path that surrounds the objective lens and a revolver that can be attached to and detached from the optical microscope body in order to perform dark field illumination. An objective lens having an optical path for dark field illumination has a different mounting screw diameter from a general objective lens. Specifically, an objective lens having a dark field illumination optical path has a larger screw diameter than an objective lens not having a dark field illumination optical path. Thus, since the objective lens having the dark field illumination optical path has a special shape, the manufacturing cost is increased. Moreover, the detachable revolver is expensive in itself, and the manufacturing cost of the optical microscope body itself is increased by configuring the optical microscope body so that the revolver can be detached.

  Thus, the dark field illumination device of Patent Document 1 has a problem that it is difficult to apply to a normal inexpensive optical microscope.

  Moreover, since the dark field illumination device of Patent Document 2 employs an objective lens having a dark field illumination optical path as in Patent Document 1, the price of the objective lens is increased. In addition, a considerable space is required to switch the incident end of the fiber or the aperture stop at a position conjugate with the light source in the epi-illumination system, and the epi-illumination device may be built in the microscope body. In many inverted optical microscopes, there is a drawback that the microscope body itself becomes large. In addition, a significant increase in manufacturing cost is expected by arranging a switching mechanism and the like. For this reason, the dark field illumination device of Patent Document 2 also has a problem that it is difficult to apply to a normal inexpensive optical microscope.

  Further, the dark field illumination device of Patent Document 3 does not require a dark field illumination optical path that surrounds the objective lens and a revolver that can be attached to and detached from the microscope main body, which increases the manufacturing cost of the objective lens and the microscope main body. Is avoided. However, since the illumination means in the dark field illumination device of Patent Document 3 is configured to transmit light between the light incident portion and the light emission portion by a fiber or the like, the manufacturing cost of the illumination means with this configuration is also expensive. End up. Further, it is necessary to prepare as many illumination means as the number of objective lenses for which dark field observation is desired. For this reason, the optical microscope system using the dark field illumination device of Patent Document 3 has a drawback that the manufacturing cost of the entire system increases.

  In view of the above problems, an object of the present invention is to provide an illumination device that is inexpensive and can be retrofitted to an optical microscope that does not originally have a configuration for dark field illumination. ) Can be used at low cost for bright-field illumination and dark-field illumination, and can be switched to either bright-field optical system or dark-field optical system, and is lightweight and compact. An illumination device for an optical microscope capable of realizing power saving is provided.

  The illumination device for an optical microscope of the present invention has the following configuration in view of the above problems.

  The illumination device for a microscope according to one embodiment of the present invention is used for an optical microscope having an objective lens and a removable observation sample support (stage) on which an observation sample is arranged at the time of observation. This illuminating device has a power source (for example, a dry cell), a switch, and a light emitting part that outputs illumination light, and the light emitting part is disposed in the vicinity of the observation sample on the observation sample support part (stage). When used for dark field system observation, the illuminating device is disposed on the opposite side of the objective lens with the observation sample support (stage) in between on the optical axis of the objective lens. When this illumination device irradiates the illumination light toward the observation sample (specimen) from obliquely below the observation sample support (stage), reflected light from the observation sample (specimen) is reflected by the objective lens. It arrange | positions so that it may inject into an optical axis. As necessary for observation, a plurality of light sources (for example, ultra-bright light emitting diodes) arranged three-dimensionally are selectively turned on.

  The microscope illumination device according to another aspect of the present invention is used in an optical microscope having an objective lens and a removable observation sample support (stage) on which an observation sample is arranged during observation. This illuminating device has a power source (for example, a dry cell), a switch, and a light emitting part that outputs illumination light, and the light emitting part is disposed in the vicinity of the observation sample on the observation sample support part (stage). When used for bright field system observation, the illuminating device is arranged on the opposite side of the objective lens with the observation sample support (stage) in between on the optical axis of the objective lens. This illuminating device is arranged so that transmitted light from the observation sample (specimen) is incident on the optical axis of the objective lens when the illumination light is directed toward the observation sample from below. A plurality of light sources (for example, ultra-bright light emitting diodes) arranged three-dimensionally as needed for observation are selectively turned on.

  The illumination device for a microscope according to still another aspect of the present invention is used in an optical microscope having an objective lens and a removable observation sample support (stage) on which an observation sample is arranged at the time of observation. This illuminating device has a power source (for example, a dry cell), a switch, and a light emitting part that outputs illumination light, and the light emitting part is disposed in the vicinity of the observation sample on the observation sample support part (stage). When a normal transmission optical microscope is used as a stereomicroscope, it is arranged on the same side as the objective lens with respect to the observation sample support. This illuminating device is arranged so that the reflected light from the observation sample (specimen) is incident on the optical axis of the objective lens when the illumination light is directed toward the observation sample from obliquely above. A plurality of light sources (for example, ultra-bright light emitting diodes) arranged three-dimensionally as needed for observation are selectively turned on.

  The present invention is an illumination device that can be retrofitted to a transmission type optical microscope that is inexpensive and does not originally have a configuration for dark field illumination or entity observation illumination, and is arranged near the sample. A microscope that can perform bright-field illumination and dark-field illumination with a simple configuration, and can obtain illumination by switching to either a bright-field optical system or a dark-field optical system, and can achieve light weight, miniaturization, and power saving. Can be provided.

FIG. 1 is a side view of an illumination device of an optical microscope. FIG. 2 is a schematic side view in which an illuminating device is applied to a transmission optical microscope as dark field system observation according to the mode of the first embodiment. FIG. 3 is a schematic side view in which an illuminating device is applied to a transmission optical microscope as a bright field system observation according to the mode of the second embodiment. FIG. 4 is a schematic side view in which an illuminating device is applied to a transmission type optical microscope as entity observation according to the form of Example 3.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a side view of the device of the present invention, and FIGS. 2, 3 and 4 are overall configuration diagrams when the embodiment of the present invention is applied to a transmission optical microscope. FIG. FIG. 3 shows bright field illumination, and FIG. 4 shows entity observation illumination.

  FIG. 2 is a side view of Example 1 of the device of the present invention, and shows a schematic structure in which an illumination device is applied to a transmission optical microscope when used as dark field system observation.

  The illuminating device of the present invention is an illuminating device that is inexpensive and can be retrofitted to an optical microscope that does not originally have a configuration for dark field illumination, and is arranged near the observation sample (specimen). This is an illumination device for an optical microscope that can provide dark field illumination with a simple configuration and that can achieve light weight, downsizing, and power saving.

  An illumination device used in an optical microscope having an objective lens and a detachable observation sample support (stage) on which an observation sample is arranged at the time of observation, the illumination device including a light emitting unit that outputs illumination light, and the observation sample It arrange | positions in the vicinity of the observation sample of a support part. When used for dark field system observation, the illuminating device is disposed on the opposite side of the objective lens with the observation sample support (stage) in between on the optical axis of the objective lens. When the illumination light is directed toward the observation sample and irradiated from obliquely below the observation sample support portion (stage), the reflected light enters the objective lens. By retrofitting an existing optical microscope that originally has no configuration for dark field illumination, dark field observation can be easily performed. A plurality of light sources (for example, ultra-bright light emitting diodes) arranged three-dimensionally as needed for observation are selectively turned on. Further, by changing the color type (white, blue, red, light bulb color, etc.) of the light source (for example, ultra-high luminance light emitting diode), the effect is the same as that obtained by exchanging the filter.

FIG. 3 is a side view of Example 2 of the device of the present invention, and when used for bright field system observation,
1 shows a schematic structure in which an illumination device is applied to a transmission optical microscope.

  The present invention is an illumination device that can be retrofitted to a microscope that does not have a configuration for bright-field illumination, such as a transmission illumination device, for observation with an optical microscope, and in the vicinity of an observation sample (specimen). It is an illumination device for an optical microscope that can obtain bright-field illumination with a simple arrangement and that can achieve light weight, downsizing, and power saving.

  An illumination device used in an optical microscope having an objective lens and a detachable observation sample support (stage) on which an observation sample is arranged at the time of observation, the illumination device including a light emitting unit that outputs illumination light, and the observation sample It arrange | positions in the vicinity of the observation sample of a support part (stage). When used for bright field system observation, the illuminating device is arranged on the opposite side of the objective lens with the observation sample support (stage) in between on the optical axis of the objective lens. When the illumination light is directed toward the observation sample and irradiated from below the observation sample support (stage), the transmitted light enters the objective lens. By retrofitting an existing simple transmission optical microscope that does not originally have a configuration for bright field illumination such as a transmission illumination device, bright field system observation can be easily performed. A plurality of light sources (for example, ultra-bright light emitting diodes) arranged three-dimensionally as needed for observation are selectively turned on. Further, by changing the color type (white, blue, red, light bulb color, etc.) of the light source (for example, ultra-high luminance light emitting diode), the effect is the same as that obtained by exchanging the filter.

  FIG. 4 is a side view of Embodiment 3 of the device of the present invention, and shows a schematic structure in which an illuminating device is applied to a transmission type optical microscope when used as entity observation.

  The present invention is an illumination device that is inexpensive and can be retrofitted to a microscope that does not originally have a configuration for observing an optical microscope. Further, the present invention is a simple device arranged near the observation sample (specimen). It is an illumination device for an optical microscope that can obtain illumination for entity observation according to the configuration, and can achieve light weight, downsizing, and power saving.

  An illumination device used in an optical microscope having an objective lens and a detachable observation sample support (stage) on which an observation sample is arranged at the time of observation, the illumination device including a light emitting unit that outputs illumination light, and the observation sample It arrange | positions in the vicinity of the observation sample (specimen) of a support part (stage). When a normal transmission optical microscope is used as a stereomicroscope, the illumination device is arranged on the same side as the objective lens with respect to the observation sample support (stage). When the illumination light is directed toward the observation sample from obliquely above, the reflected light enters the objective lens. By retrofitting an existing transmission optical microscope that does not have a stereo microscope illumination configuration, it is possible to easily perform stereo observation. A plurality of light sources (for example, ultra-bright light emitting diodes) arranged three-dimensionally as needed for observation are selectively turned on. Further, by changing the color type (white, blue, red, light bulb color, etc.) of the light source (for example, ultra-high luminance light emitting diode), the effect is the same as that obtained by exchanging the filter.

  As described above, according to the illumination device of the present invention, bright field transmission and dark field transmission can be achieved by mounting on existing transmission optical microscopes and stereomicroscopes that are not originally configured for dark field illumination. Observation and entity observation can be easily performed, and an inexpensive, lightweight, compact, long-life and power-saving lighting device can be provided.

1 Light Emitting Unit 2 Cover 3 Power Supply (Battery)
4 Main switch 5 Changeover switch 6 Movable arm 7 Base part 8 Support part 9 Conductor 10 Illumination light 11 Reflected light 12 Transmitted light 100 Optical axis 101 of objective lens Objective lens 102 Observation sample support part 103 Observation sample 104 Revolver 105 Diaphragm

Claims (4)

  An illuminating device having a light emitting unit for illuminating an observation sample in an optical microscope, the illuminating device used for the optical microscope having an objective lens and an observation sample supporting unit, comprising a base unit, a power source, a switch, and a movable arm And the light emitting unit is arranged in a movable state in the vicinity of the observation sample of the observation sample support unit, and when used for dark field system observation, the light emitting unit is provided on the objective lens. The optical axis is disposed on the opposite side of the observation sample support portion with respect to the objective lens, and the illumination light from the light emitting portion is directed toward the observation sample from obliquely below the observation sample support portion. An illumination apparatus for an optical microscope characterized in that reflected light from the observation sample is incident on the optical axis of the objective lens, and dark field system observation can be easily performed.   An illuminating device having a light emitting unit for illuminating an observation sample in an optical microscope, the illuminating device used for the optical microscope having an objective lens and an observation sample supporting unit, comprising a base unit, a power source, a switch, and a movable arm And the light emitting unit is arranged in a movable state in the vicinity of the observation sample of the observation sample support unit, and when used for bright field system observation, the light emitting unit of the objective lens In the optical axis, arranged on the opposite side of the objective lens with respect to the objective sample support part, and when illuminating the illumination light from the light emitting part toward the observation sample, from below the observation sample support part, An illumination device for an optical microscope, wherein transmitted light from the observation sample is incident on the optical axis of the objective lens and facilitates bright field observation.   An illuminating device having a light emitting unit for illuminating an observation sample in an optical microscope, the illuminating device used for the optical microscope having an objective lens and an observation sample supporting unit, comprising a base unit, a power source, a switch, and a movable arm And the light emitting part is arranged in a movable state in the vicinity of the observation sample of the observation sample support part, and when using a normal transmission optical microscope as a stereomicroscope, the light emitting part Is arranged on the same side as the objective lens with respect to the observation sample support part, and when the illumination light from the light emitting part is directed to the observation sample from obliquely above the observation sample support part, The optical microscope illumination device is characterized in that the reflected light is incident on the optical axis of the objective lens and can be easily observed.   An illumination apparatus for an optical microscope has the apparatus according to claim 1, claim 2, and claim 3, and selectively switches dark field system, bright field system and entity observation system illumination by switching a switch. An illumination device for an optical microscope, which can be easily turned on.

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