JP4834043B2 - Hidden mark visual recognition device for spectacle lenses - Google Patents

Hidden mark visual recognition device for spectacle lenses Download PDF

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JP4834043B2
JP4834043B2 JP2008204990A JP2008204990A JP4834043B2 JP 4834043 B2 JP4834043 B2 JP 4834043B2 JP 2008204990 A JP2008204990 A JP 2008204990A JP 2008204990 A JP2008204990 A JP 2008204990A JP 4834043 B2 JP4834043 B2 JP 4834043B2
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JP2010039401A (en
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公 尾形
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株式会社サンニシムラ
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本発明は、眼鏡レンズに設けてある隠しマークを明確に視認するための装置に関する。   The present invention relates to an apparatus for clearly viewing a hidden mark provided on a spectacle lens.

この種の装置は、例えば特許文献１に公知である。そこでは、光源（蛍光灯）と拡大レンズとの間の光路に光量制限具を位置させて照明光の照射状態を調整し、眼鏡レンズに設けられている隠しマークを拡大レンズで視認できるようにしている。光量制限具は、第１の面板と第２の面板とでＬ字状に形成してあり、第１面板部には防眩効果を発揮するフィルターが設けられ、第２面板部には眼鏡レンズの照明領域をレンズ周縁部に限定するマスクが設けられている。第１・第２の各面板部を介して眼鏡レンズに照射される照明光によって、プラスチック製の眼鏡レンズに設けた突状の隠しマークや、ガラス製の眼鏡レンズに設けた凹状の隠しマークを視認することができる。なお、眼鏡レンズは手で持った状態で、拡大レンズの焦点位置付近に支持する。同様の隠しマーク視認装置は、特許文献２にも開示してあるが、そこでは、眼鏡レンズを本体ケースの上面の載置面に載置した状態で隠しマークを確認する。   This type of device is known, for example, from US Pat. There, a light quantity limiter is positioned in the optical path between the light source (fluorescent lamp) and the magnifying lens to adjust the illumination state of the illumination light so that the hidden mark provided on the spectacle lens can be viewed with the magnifying lens. ing. The light amount limiter is formed in an L shape with a first face plate and a second face plate, a filter that exhibits an antiglare effect is provided on the first face plate portion, and a spectacle lens is provided on the second face plate portion. A mask is provided to limit the illumination area to the lens periphery. A projection-like hidden mark provided on a plastic spectacle lens or a concave hidden mark provided on a glass spectacle lens is illuminated by illumination light applied to the spectacle lens via the first and second face plate portions. It can be visually recognized. The spectacle lens is supported in the vicinity of the focal position of the magnifying lens while being held by hand. A similar hidden mark visual recognition device is also disclosed in Patent Document 2, in which the hidden mark is confirmed in a state where the spectacle lens is placed on the placement surface of the upper surface of the main body case.

上記の隠しマーク視認装置とは異なり、光源からの照明光を背景体で反射させたのち、拡大レンズへ向かって照射する隠しマーク視認装置が提案されている（特許文献３）。光源は背景体の斜め上方に配置してあり、光源からの直接光のみで眼鏡レンズを照射し、あるいは直接光と背景体からの反射光とで眼鏡レンズを照射するなどにより、眼鏡レンズに設けた隠しマークを視認することができる。背景体は黒色のつや消し塗料が塗布されたプラスチック板で構成され、あるいは前記背景体の黒色の反射面にアルミニウム箔などの反射材を点状や線状などに配置して構成してある。   Unlike the above-described hidden mark visual recognition device, a hidden mark visual recognition device has been proposed in which illumination light from a light source is reflected by a background body and then irradiated toward a magnifying lens (Patent Document 3). The light source is arranged obliquely above the background body and is provided on the eyeglass lens by irradiating the spectacle lens only with direct light from the light source, or by irradiating the spectacle lens with direct light and reflected light from the background body. The hidden mark can be visually recognized. The background body is composed of a plastic plate coated with a black matte paint, or a reflector such as an aluminum foil is arranged in a dotted or linear shape on the black reflective surface of the background body.

特許第３００９４０１号公報（段落番号００２３〜００２４、図２）Japanese Patent No. 3009401 (paragraph numbers 0023 to 0024, FIG. 2) 特許第３１３３４３０号公報（段落番号００２１、図１）Japanese Patent No. 3133430 (paragraph number 0021, FIG. 1) 特開２００１−２８１５６１号公報（段落番号００１５、図２）JP 2001-281561 (paragraph number 0015, FIG. 2)

特許文献１の隠しマーク視認装置は、光源が収容されるハウジングの上部にＬ字状の光量制限具を載置して照明光の照射状態を調整する。そのため、眼鏡レンズの隠しマークが既知でないような場合に、第１面板部と第２面板部とを交互に照明用の光路に臨ませ、眼鏡レンズに照射される光の状態を変更して隠しマークを視認する必要があり、光量制限具の姿勢を変更する手間が煩わしい。また、光源としてリング状の蛍光灯を使用するため商用電源の近傍で使用する必要があり、さらに装置全体の高さおよび前後寸法が大きいので、設置場所が比較的広いスペースに限られる不便がある。蛍光灯用の安定器などが不可欠であるうえ、ケース構造が複雑であるため全体コストが高く付く不利もある。   The hidden mark visual recognition device of Patent Literature 1 adjusts the irradiation state of illumination light by placing an L-shaped light amount limiter on top of a housing in which a light source is accommodated. Therefore, when the hidden mark of the spectacle lens is not known, the first face plate portion and the second face plate portion are alternately exposed to the illumination optical path, and the state of the light irradiated to the spectacle lens is changed and concealed. It is necessary to visually recognize the mark, and it is troublesome to change the posture of the light amount limiter. In addition, since a ring-shaped fluorescent lamp is used as a light source, it is necessary to use it in the vicinity of a commercial power supply. Further, since the overall height and front and rear dimensions of the apparatus are large, there is an inconvenience that the installation place is limited to a relatively wide space. . A ballast for fluorescent lamps is indispensable, and the case structure is complicated, so that the overall cost is high.

特許文献３の隠しマーク視認装置においては、複数種類の背景体をハウジング内の所定位置に差し換えて、照明光の照射状態を切り換えながら眼鏡レンズの隠しマークを視認しなければならない。そのため、眼鏡レンズに適合する背景体を選び出し、隠しマークを特定するのに多くの手間が掛かる。また、特許文献１の隠しマーク視認装置と同様に、設置場所が商用電源の近傍で比較的広いスペースに限られる不便がある。   In the hidden mark visual recognition device of Patent Document 3, it is necessary to replace a plurality of types of background bodies with predetermined positions in the housing and visually recognize the hidden mark of the spectacle lens while switching the irradiation state of the illumination light. Therefore, it takes much time to select a background body suitable for the spectacle lens and specify the hidden mark. Further, like the hidden mark visual recognition device of Patent Document 1, there is an inconvenience that the installation place is limited to a relatively wide space near the commercial power source.

本発明の目的は、照明光の照射状態の切り換えを簡単に行なって、隠しマークを迅速に確認できる眼鏡レンズの隠しマーク視認装置を提供することにある。本発明の目的は、全体構造が簡単でコンパクト化でき、その分だけ低コスト化できる眼鏡レンズの隠しマーク視認装置を提供することにある。本発明の目的は、商用電源が不必要でどこででも使用でき、長期にわたってメンテナンスが不要な眼鏡レンズの隠しマーク視認装置を提供することにある。   An object of the present invention is to provide a hidden mark visualizing device for a spectacle lens that can easily switch the irradiation state of illumination light and quickly confirm the hidden mark. An object of the present invention is to provide a hidden mark visualizing device for a spectacle lens that has a simple overall structure, can be made compact, and can be reduced in cost accordingly. An object of the present invention is to provide a hidden mark visualizing device for spectacle lenses that does not require a commercial power source and can be used anywhere, and does not require maintenance over a long period of time.

本発明に係る眼鏡レンズの隠しマーク視認装置は、光源３、および背景体５を収容する本体ケース１と、拡大レンズ６を支持するレンズホルダー２とを備えている。本体ケース１の上面には、眼鏡レンズ８を載置するための載置面９と、載置面９に臨んで開口する照射開口１０とが設けてある。背景体５は、照射開口１０を介して拡大レンズ６と正対する状態で本体ケース内１に配置する。光源３は複数個のＬＥＤ２８を含んで構成し、背景体５の斜め上方に配置する。以って、ＬＥＤ２８から照射される照明光の照射中心軸Ｐが、載置面９に載置した眼鏡レンズ８を指向する第１照射状態と、背景体５を指向する第２照射状態とに切り換えできるように光源３を構成する。本体ケース１の外面に、光源３を第１照射状態と第２照射状態とに切り換える切換具３９を設ける。   The hidden mark visual recognition device for spectacle lenses according to the present invention includes a main body case 1 that houses a light source 3 and a background body 5, and a lens holder 2 that supports a magnifying lens 6. On the upper surface of the main body case 1, there are provided a mounting surface 9 for mounting the spectacle lens 8 and an irradiation opening 10 that opens toward the mounting surface 9. The background body 5 is disposed in the main body case 1 so as to face the magnifying lens 6 through the irradiation opening 10. The light source 3 includes a plurality of LEDs 28 and is disposed obliquely above the background body 5. Thus, the irradiation center axis P of the illumination light emitted from the LED 28 is changed into the first irradiation state in which the spectacle lens 8 placed on the placement surface 9 is directed and the second irradiation state in which the background body 5 is directed. The light source 3 is configured so that it can be switched. A switching tool 39 for switching the light source 3 between the first irradiation state and the second irradiation state is provided on the outer surface of the main body case 1.

光源３は、図４に示すように複数個のＬＥＤ２８と、これらのＬＥＤ２８を支持する支持体２７とで構成する。支持体２７は、ＬＥＤ２８の照射中心軸Ｐが載置面９に載置した眼鏡レンズ８を指向する第１照射状態と、ＬＥＤ２８の照射中心軸Ｐが背景体を指向する第２照射状態とに変位可能に本体ケース１で支持する。本体ケース１の外面に、支持体２７を変位操作する切換えつまみ３９を設ける。   As shown in FIG. 4, the light source 3 includes a plurality of LEDs 28 and a support 27 that supports the LEDs 28. The support 27 has a first irradiation state in which the irradiation center axis P of the LED 28 is directed to the spectacle lens 8 placed on the placement surface 9 and a second irradiation state in which the irradiation center axis P of the LED 28 is directed to the background body. It is supported by the main body case 1 so that it can be displaced. A switching knob 39 for displacing the support 27 is provided on the outer surface of the main body case 1.

光源３は、図９に示すように載置面９に載置した眼鏡レンズ８を照射する複数個の第１ＬＥＤ群４６と、背景体５を照射する複数個の第２ＬＥＤ群４７と、これらのＬＥＤ群４６・４７を支持する支持体２７とで構成する。本体ケース１の外面に、第１ＬＥＤ群４６と第２ＬＥＤ群４７の点灯状態を切り換える切換えスイッチ３９を設ける（図８参照）。   As shown in FIG. 9, the light source 3 includes a plurality of first LED groups 46 that irradiate the spectacle lens 8 placed on the placement surface 9, a plurality of second LED groups 47 that irradiate the background body 5, and these It is comprised with the support body 27 which supports LED group 46 * 47. A changeover switch 39 for switching the lighting state of the first LED group 46 and the second LED group 47 is provided on the outer surface of the main body case 1 (see FIG. 8).

拡大レンズ６の焦点領域を、載置面９に載置した眼鏡レンズ８の高さ位置に合致させる。焦点領域とは、焦点が合っている領域を意味する。   The focal region of the magnifying lens 6 is matched with the height position of the spectacle lens 8 placed on the placement surface 9. A focal area means an area in focus.

本体ケース１の内部に、光源点灯用の電池１６を収容する。本体ケース１は中空箱状に形成して、その前後面および左右側面のいずれかひとつに電池開口１８を開口する。レンズホルダー２が電池開口１８を塞ぐ蓋体を兼ねるように、本体ケース１に対して着脱可能に固定する。   A battery 16 for lighting the light source is housed inside the main body case 1. The main body case 1 is formed in a hollow box shape, and the battery opening 18 is opened on any one of the front and rear surfaces and the left and right side surfaces thereof. The lens holder 2 is detachably fixed to the main body case 1 so that it also serves as a lid for closing the battery opening 18.

回路基板２７で構成された支持体を、本体ケース１で回動変位自在に軸支される回動軸３０に固定する。回動軸３０と本体ケース１との間に、回路基板２７を任意の回動位置において位置保持する摩擦抵抗体３１を配置する（図４参照）。   The support body constituted by the circuit board 27 is fixed to a rotation shaft 30 that is pivotally supported by the main body case 1 so as to be freely rotatable. Between the rotating shaft 30 and the main body case 1, a frictional resistor 31 that holds the circuit board 27 in an arbitrary rotating position is disposed (see FIG. 4).

本発明では、照明用の光源３を複数個のＬＥＤ２８を含んで構成し、本体ケース１内に設けた背景体５の斜め上方に配置した。そのうえで、本体ケース１の外面に設けた切換具３９を切り換え操作してＬＥＤ２８の照射中心軸Ｐの向きを変更することにより、照明光の照射状態を変更できるようにした。したがって、本発明の隠しマーク視認装置によれば、切換具３９を切り換え操作するだけの簡単な操作で、眼鏡レンズ８の形成素材の違いに対応して照明光の照射状態を変更でき、従来のこの種の装置において不可欠であった光量制限具の姿勢変更や、背景体の差し換えなどを行なう必要もなく、隠しマークの確認を迅速にしかも的確に行なえる。   In the present invention, the light source 3 for illumination includes a plurality of LEDs 28 and is disposed obliquely above the background body 5 provided in the main body case 1. In addition, the illumination tool can be changed in the irradiation state by changing the direction of the irradiation center axis P of the LED 28 by switching the switching tool 39 provided on the outer surface of the main body case 1. Therefore, according to the hidden mark visual recognition device of the present invention, the irradiation state of the illumination light can be changed corresponding to the difference in the forming material of the spectacle lens 8 by a simple operation of simply switching the switching tool 39. There is no need to change the posture of the light amount limiter or replace the background body, which is indispensable in this type of apparatus, and the hidden mark can be confirmed quickly and accurately.

また、複数個のＬＥＤ２８を発光源にして光源３を構成するので、蛍光灯を発光源とする従来装置に比べて安定器などの余分な機器を省略でき、蛍光灯や安定器などを収容するスペースも省略できる。したがって、本発明装置の本体ケース１は、少なくとも複数個のＬＥＤ２８や背景体５などを収容できるスペースがあればよく、従来装置に比べて隠しマーク視認装置の全体構造の簡素化と小形化とを同時に実現して、全体コストを削減できる。電池１６を電源とする場合には商用電源が不必要であり、しかも小形化できることと相俟って、使用場所の制限がなく、どこででも使用できる隠しマーク視認装置とすることができる。光源として寿命の長いＬＥＤ２８を使用するので、長期にわたって光源のメンテナンスを行なう必要がない利点もある。   In addition, since the light source 3 is configured by using a plurality of LEDs 28 as a light source, extra equipment such as a ballast can be omitted as compared with a conventional device using a fluorescent lamp as a light source, and a fluorescent lamp and a ballast are accommodated. Spaces can be omitted. Therefore, the main body case 1 of the device of the present invention only needs to have a space that can accommodate at least a plurality of LEDs 28, the background body 5 and the like, and simplifies and miniaturizes the overall structure of the hidden mark visual recognition device compared to the conventional device. At the same time, the overall cost can be reduced. When the battery 16 is used as a power source, a commercial power source is unnecessary, and coupled with the fact that the battery 16 can be downsized, there is no limitation on the place of use, and a hidden mark visual recognition device that can be used anywhere can be obtained. Since the LED 28 having a long lifetime is used as the light source, there is an advantage that it is not necessary to perform maintenance of the light source over a long period.

複数個のＬＥＤ２８と、これらのＬＥＤ２８を支持する支持体２７とで光源３を構成し、本体ケース１の外面に設けた切換えつまみ３９で支持体２７を変位操作して、ＬＥＤ２８の照射中心軸Ｐの向きを第１照射状態と第２照射状態に変更できるようにすると、切換えつまみ３９を切り換え操作するだけの簡単な操作で、眼鏡レンズ８の形成素材の違いに対応して照明光の照射状態を変更できる。また、拡大レンズ６を覗き込んだ状態のままで切換えつまみ３９を操作して照明光の照射状態を変更できるので、例えば第１照射状態で隠しマーク４４を視認できなかった場合などに、第２照射状態への切り換えを即座に行なって、隠しマーク４４の確認作業を迅速に行なえる。ＬＥＤ２８を支持する支持体２７の姿勢を変更して照射中心軸Ｐの向きを切り換えるので、切換えつまみ３９の操作量を加減して、照明光の照射状態を使用者の好みの状態に微調整できる利点もある。   A plurality of LEDs 28 and a support body 27 that supports these LEDs 28 constitute the light source 3, and the support body 27 is displaced by a switching knob 39 provided on the outer surface of the main body case 1, so that the irradiation center axis P of the LED 28 is changed. If the orientation of the lens can be changed between the first irradiation state and the second irradiation state, the illumination light irradiation state can be changed according to the difference in the formation material of the spectacle lens 8 by a simple operation of switching the switching knob 39. Can be changed. In addition, since the illumination light irradiation state can be changed by operating the switching knob 39 while looking into the magnifying lens 6, the second mark is displayed when the hidden mark 44 cannot be visually recognized in the first irradiation state, for example. Switching to the irradiation state can be performed immediately, and the confirmation work of the hidden mark 44 can be performed quickly. Since the orientation of the irradiation center axis P is switched by changing the posture of the support 27 that supports the LED 28, the amount of operation of the switching knob 39 can be adjusted to finely adjust the irradiation state of the illumination light to the user's favorite state. There are also advantages.

載置面９に載置した眼鏡レンズ８を照射する複数個の第１ＬＥＤ群４６と、背景体５を照射する複数個の第２ＬＥＤ群４７と、これらのＬＥＤ群４６・４７を支持する支持体２７とで光源３を構成し、本体ケース１の外面に設けた切換えスイッチ３９を操作して、両ＬＥＤ群４６・４７の点灯状態を切り換えるようにすると、可動部分を一掃できるので、隠しマーク視認装置が故障する確率を大幅に低下して、耐久性と信頼性を向上できる。また、各ＬＥＤ群４６・４７の照度を異ならせ、あるいは発光色を異ならせるなど、眼鏡レンズ８の形成素材の違いに対応して照明光の特性を好適化して、隠しマーク４４の確認作業をさらに効果的に行なうことができる。   A plurality of first LED groups 46 that irradiate the spectacle lens 8 placed on the placement surface 9, a plurality of second LED groups 47 that irradiate the background body 5, and a support that supports these LED groups 46 and 47. 27 to configure the light source 3 and operate the changeover switch 39 provided on the outer surface of the main body case 1 to switch the lighting state of both the LED groups 46 and 47, so that the movable part can be wiped out. Durability and reliability can be improved by greatly reducing the probability of equipment failure. In addition, the illumination light characteristics are optimized in accordance with the difference in the material of the spectacle lens 8 such that the illuminances of the LED groups 46 and 47 are different or the emission colors are different. This can be done more effectively.

拡大レンズ６の焦点領域を、載置面９に載置した眼鏡レンズ８の高さ位置に合致させると、拡大レンズ６に対する眼鏡レンズ８の高さ位置を調整して、眼鏡レンズ８を焦点領域に位置させる手間を省くことができる。したがって、拡大レンズ６を覗き込んだ状態で眼鏡レンズ８を載置面９に沿って移動させることにより隠しマーク４４を探すことができ、より確実にしかも簡便に隠しマーク４４を視認できる。   When the focal region of the magnifying lens 6 is matched with the height position of the spectacle lens 8 placed on the placement surface 9, the height position of the spectacle lens 8 with respect to the magnifying lens 6 is adjusted, and the spectacle lens 8 is moved to the focal region. It is possible to save the time and effort of positioning. Therefore, the hidden mark 44 can be searched by moving the spectacle lens 8 along the placement surface 9 while looking into the magnifying lens 6, and the hidden mark 44 can be visually recognized more reliably and easily.

中空箱状に形成した本体ケース１の周囲壁に電池開口１８を開口し、本体ケース１に対して着脱されるレンズホルダー２で電池開口１８を塞ぐようにすると、電池開口１８を塞ぐ蓋体を別途設ける必要がなく、その分だけケース構造を簡素化して隠しマーク視認装置の製造に要するコストを削減できる。本体ケース１の内部に電池１６を収容するので、電池１６を本体ケース１の外部に別設する場合に比べて、隠しマーク視認装置の保管や収納に要するスペースを小さくできる。   When the battery opening 18 is opened in the peripheral wall of the main body case 1 formed in a hollow box shape and the battery opening 18 is closed with the lens holder 2 attached to and detached from the main body case 1, the lid for closing the battery opening 18 is provided. There is no need to provide it separately, and the case structure can be simplified accordingly and the cost required for manufacturing the hidden mark visual recognition device can be reduced. Since the battery 16 is accommodated inside the main body case 1, the space required for storage and storage of the hidden mark visual recognition device can be reduced as compared with the case where the battery 16 is separately provided outside the main body case 1.

回路基板２７を回動軸３０に固定し、回動軸３０と本体ケース１との間に摩擦抵抗体３１を配置すると、回路基板２７を任意の回動位置において位置保持することができる。したがって、第１照射状態と第２照射状態に切り換えた光源３が、外部から加わる衝撃や自重によって回動するのを確実に防止して、照射中心軸Ｐを常に適正な状態に保持することができる。   When the circuit board 27 is fixed to the rotation shaft 30 and the frictional resistor 31 is disposed between the rotation shaft 30 and the main body case 1, the circuit board 27 can be held at an arbitrary rotation position. Therefore, it is possible to reliably prevent the light source 3 switched between the first irradiation state and the second irradiation state from rotating due to an external impact or its own weight and to keep the irradiation center axis P in an appropriate state at all times. it can.

（実施例） 図１ないし図７は本発明に係る隠しマーク視認装置の実施例を示す。図１ないし図３において隠しマーク視認装置は、本体ケース１と、本体ケース１の背面に着脱可能に固定されるレンズホルダー２と、本体ケース１の内部に収容される光源３、電池ユニット４、および背景体５と、レンズホルダー２で支持される拡大レンズ６などで構成する。 (Example) FIG. 1 thru | or FIG. 7 shows the Example of the hidden mark visual recognition apparatus based on this invention. 1 to 3, the hidden mark visual recognition device includes a main body case 1, a lens holder 2 that is detachably fixed to the back of the main body case 1, a light source 3 that is housed in the main body case 1, a battery unit 4, And a background body 5 and a magnifying lens 6 supported by the lens holder 2.

本体ケース１は、プラスチック製の縦長直方体状の中空箱からなり、その上面に眼鏡レンズ８を載置するための載置面９を有し、載置面９の前後中央に光源３からの照射光を通過させるための照射開口１０が開口してある。照射開口１０は帯状の光源３に対応して横長四角形状に形成してある。本体ケース１の内部は、ケース内部に固定した区画板１２で上区画１３と下区画１４とに区分されており、上区画１３に光源３と背景体５が配置され、下区画１４に電池ユニット４が収容してある。   The main body case 1 is made of a plastic, vertically long rectangular parallelepiped hollow box, and has a mounting surface 9 for mounting the spectacle lens 8 on its upper surface, and irradiation from the light source 3 at the front and rear center of the mounting surface 9. An irradiation opening 10 for passing light is opened. The irradiation opening 10 is formed in a horizontally long rectangular shape corresponding to the strip-shaped light source 3. The inside of the main body case 1 is divided into an upper compartment 13 and a lower compartment 14 by a partition plate 12 fixed inside the case, the light source 3 and the background body 5 are arranged in the upper compartment 13, and a battery unit in the lower compartment 14. 4 is housed.

電池ユニット４は、上向きに開口する電池ケース１５と、電池ケース１５に装填される４個の電池（単３電池）１６とで構成してある。電池ケース１５は下区画１４の底壁に面ファスナー１７で着脱可能に固定してある。電池１６を交換するために、本体ケース１の背面全体が電池開口１８として開口してある。電池１６を交換する場合には、レンズホルダー２を取り外し、さらに面ファスナー１７を分離して電池ケース１５を本体ケース１の外へ取り出して行なう。本体ケース１の内面全体および区画板１２の少なくとも上面は、黒色のつや消し塗料が塗布してあり、これにより光源３の照射光が本体ケース１の内面および区画板１２で反射するのを防いでいる。   The battery unit 4 includes a battery case 15 that opens upward, and four batteries (AA batteries) 16 that are loaded in the battery case 15. The battery case 15 is detachably fixed to the bottom wall of the lower compartment 14 with a hook-and-loop fastener 17. In order to replace the battery 16, the entire back surface of the main body case 1 is opened as a battery opening 18. When replacing the battery 16, the lens holder 2 is removed, the surface fastener 17 is further separated, and the battery case 15 is taken out of the main body case 1. The entire inner surface of the main body case 1 and at least the upper surface of the partition plate 12 are coated with a black matte paint, thereby preventing the irradiation light of the light source 3 from being reflected by the inner surface of the main body case 1 and the partition plate 12. .

レンズホルダー２は、プラスチック板材を逆Ｌ字状に折り曲げて構成してあり、その上面板２ａに開口した円形の視認開口２１に拡大レンズ６を装着している。拡大レンズ６は、上面板２ａと、上面板２ａの下面側に固定される押え枠２２とで取り外し不能に挟持固定してある。レンズホルダー２は先の電池開口１８を塞ぐ蓋体を兼ねており、その縦壁２ｂの過半下部が４個のビス２３で本体ケース１に締結固定してある。４個のビス２３を取り外すと、レンズホルダー２を本体ケース１から分離できる。上区画１３に臨む縦壁２ｂの内面には、光源３の回動限界を規定する板状のストッパー２４が固定してある。レンズホルダー２を本体ケース１に組み付けた状態において、拡大レンズ６は照射開口１０と上下に正対している。   The lens holder 2 is formed by bending a plastic plate material in an inverted L shape, and the magnifying lens 6 is attached to a circular visual opening 21 opened in the upper surface plate 2a. The magnifying lens 6 is detachably clamped and fixed by the upper surface plate 2a and a presser frame 22 fixed to the lower surface side of the upper surface plate 2a. The lens holder 2 also serves as a lid for closing the battery opening 18, and a majority lower portion of the vertical wall 2 b is fastened and fixed to the main body case 1 with four screws 23. The lens holder 2 can be separated from the main body case 1 by removing the four screws 23. A plate-like stopper 24 that defines the rotation limit of the light source 3 is fixed to the inner surface of the vertical wall 2 b facing the upper section 13. In the state where the lens holder 2 is assembled to the main body case 1, the magnifying lens 6 faces the irradiation opening 10 vertically.

図４および図２において光源３は、横長四角形状の回路基板（支持体）２７と、回路基板２７の一方の長辺部に沿って定間隔ごとに直線列状に実装される８個のＬＥＤ２８と、回路基板２７に取付金具２９で固定される回動軸３０と、回動軸３０と本体ケース１との間に配置される摩擦抵抗体３１などで構成する。個々のＬＥＤ２８は、白色を発光する発光ダイオードからなり、各ＬＥＤ２８の隣接ピッチを５ｍｍとして、全体として帯状の照明光を照射できる。   4 and 2, the light source 3 includes a horizontally-long rectangular circuit board (support) 27 and eight LEDs 28 mounted in a straight line at regular intervals along one long side portion of the circuit board 27. And a rotation shaft 30 fixed to the circuit board 27 with a mounting bracket 29, a friction resistor 31 disposed between the rotation shaft 30 and the main body case 1, and the like. Each LED 28 is formed of a light emitting diode that emits white light, and the adjacent pitch of each LED 28 is set to 5 mm to irradiate strip-shaped illumination light as a whole.

光源３は背景体５のケース後面側の斜め上方に配置する。詳しくは、図１に示すように、拡大レンズ６の中心と照射開口１０の中心を結ぶ垂直の仮想中心軸線よりもケース後方で、しかも上区画１３の上下中央に回動軸３０の中心が位置する状態で光源３を配置する。このように、光源３を背景体５の後方斜め上方に配置することにより、ＬＥＤ２８から照射される直接照明光が拡大レンズ６に照射されるのを防止できる。   The light source 3 is disposed obliquely above the case body rear surface side of the background body 5. Specifically, as shown in FIG. 1, the center of the rotating shaft 30 is located at the rear of the case with respect to the vertical virtual central axis connecting the center of the magnifying lens 6 and the center of the irradiation opening 10 and at the center of the upper section 13 in the vertical direction. In this state, the light source 3 is arranged. Thus, by arranging the light source 3 obliquely above and behind the background body 5, it is possible to prevent the direct illumination light emitted from the LED 28 from being applied to the magnifying lens 6.

回動軸３０は、回路基板２７にビス３２で締結されるΩ字状の取付金具２９を介して回路基板２７に固定され、その両側端が本体ケース１の左右側壁で回動自在に軸支してある。摩擦抵抗体３１は、回動軸３０に固定される止金具３３、および座金３４と、これら両者３３・３４の間に配置される圧縮コイル形のばね３５と、本体ケース１に接着固定される摩擦体３６で構成する。座金３４は止金具３３と共に回動軸３０に同行して回動し、このとき座金３４と摩擦体３６との間に発生する摩擦力によって、光源３を任意の回動位置で位置保持することができる。本体ケース１から外側方へ突出する回動軸３０の軸端には、光源３を回動変位操作する切換えつまみ（切換具）３９が固定してある。また、本体ケース１の前面には、電池ユニット４から光源３へ供給される電流をオン・オフする電源スイッチ３７が設けてある。   The rotating shaft 30 is fixed to the circuit board 27 via Ω-shaped mounting brackets 29 fastened to the circuit board 27 with screws 32, and both side ends thereof are pivotally supported by the left and right side walls of the main body case 1. It is. The frictional resistor 31 is adhesively fixed to the main body case 1 with a fastener 33 and a washer 34 fixed to the rotating shaft 30, a compression coil-shaped spring 35 disposed between both of them 33, 34. The friction body 36 is used. The washer 34 rotates together with the stopper 33 along the rotation shaft 30 and holds the light source 3 at an arbitrary rotation position by the frictional force generated between the washer 34 and the friction body 36 at this time. Can do. A switching knob (switching tool) 39 for rotating and displacing the light source 3 is fixed to the shaft end of the rotating shaft 30 protruding outward from the main body case 1. A power switch 37 for turning on / off the current supplied from the battery unit 4 to the light source 3 is provided on the front surface of the main body case 1.

図５に示すように背景体５は、光沢のある白色の紙またはプラスチックシートの表面に、黒色のつや消しインクで格子模様４１を印刷して、シート表面の全体に明部と暗部を形成してなる。格子模様４１の格子幅ｂ１は、格子模様４１で囲まれる正方形の白地４２の一辺の長さｂ２より僅かに小さく設定してある。図５に示す拡大図にあっては、拡大図の周縁を囲む円の直径が１０ｍｍであるときの格子模様４１の状態を示している。このように、格子模様４１を設けることにより、背景体５で反射される照射光の光量を落として防眩作用を発揮することができる。なお、紙またはプラスチックシートに印刷される模様としては、格子模様である必要はなく、一群の点状のあるいは斑点状の模様であってもよい。また、黒色のつや消しされたシート表面に、反射性に優れた金属箔片やガラスの微粉末を接着して背景体５を形成することができる。   As shown in FIG. 5, the background 5 is formed by printing a lattice pattern 41 with a black matte ink on the surface of a glossy white paper or plastic sheet to form bright and dark portions on the entire surface of the sheet. Become. The lattice width b1 of the lattice pattern 41 is set slightly smaller than the length b2 of one side of the square white background 42 surrounded by the lattice pattern 41. The enlarged view shown in FIG. 5 shows the state of the lattice pattern 41 when the diameter of the circle surrounding the periphery of the enlarged view is 10 mm. Thus, by providing the lattice pattern 41, the amount of irradiation light reflected by the background body 5 can be reduced and the anti-glare action can be exhibited. The pattern printed on the paper or plastic sheet does not need to be a lattice pattern, and may be a group of dot-like or spot-like patterns. Further, the background body 5 can be formed by adhering a metal foil piece or glass fine powder excellent in reflectivity to the black matte sheet surface.

先に説明した光源３は、ガラス製の眼鏡レンズ８に設けられた隠しマークを視認するときと、プラスチック製の眼鏡レンズ８に設けた隠しマークを視認するときとで、切換えつまみ３９を回動操作してＬＥＤ２８の照射中心軸を切り換える。詳しくは、ガラス製の眼鏡レンズ８に設けられた隠しマークを視認する場合には、図６に示すように、ＬＥＤ２８から照射される照明光の照射中心軸Ｐが、載置面９に載置した眼鏡レンズ８を指向して斜め上向きに傾斜する第１照射状態とする。このとき、回路基板２７の下面上縁側をストッパー２４の上端縁に接当させることにより、第１照射状態における照射中心軸Ｐの傾斜角度を一定にし、摩擦抵抗体３１で位置保持することができる。   The light source 3 described above rotates the switching knob 39 when visually recognizing the hidden mark provided on the glass spectacle lens 8 and when visually recognizing the hidden mark provided on the plastic spectacle lens 8. Operate to switch the irradiation center axis of LED28. Specifically, when the hidden mark provided on the glass spectacle lens 8 is visually recognized, the irradiation center axis P of the illumination light emitted from the LED 28 is placed on the placement surface 9 as shown in FIG. A first irradiation state in which the spectacle lens 8 is directed obliquely upward and obliquely upward is set. At this time, by bringing the upper edge of the lower surface of the circuit board 27 into contact with the upper edge of the stopper 24, the inclination angle of the irradiation center axis P in the first irradiation state can be made constant and the position can be held by the frictional resistor 31. .

また、プラスチック製の眼鏡レンズ８に設けた隠しマークを視認する場合には、図７に示すように、ＬＥＤ２８から照射される照明光の照射中心軸Ｐが、背景体５を指向して斜め下向きに傾斜する第２照射状態とする。このとき、回路基板２７の下面下縁側をストッパー２４の下部表面に接当させることにより、第２照射状態における照射中心軸Ｐの傾斜角度を一定にして、背景体５で反射される反射光量を好適化できる。この状態においても、光源３の傾斜姿勢は摩擦抵抗体３１で保持されている。   When the hidden mark provided on the plastic spectacle lens 8 is visually recognized, the irradiation center axis P of the illumination light emitted from the LED 28 is directed obliquely downward toward the background body 5 as shown in FIG. It is set as the 2nd irradiation state which inclines to. At this time, the lower edge of the lower surface of the circuit board 27 is brought into contact with the lower surface of the stopper 24 so that the angle of inclination of the irradiation center axis P in the second irradiation state is constant and the amount of reflected light reflected by the background body 5 is reduced. Can be optimized. Even in this state, the inclined posture of the light source 3 is held by the frictional resistor 31.

眼鏡レンズ８に形成された隠しマーク４４の一例を図２に示している。そこでは、レンズ中心を通る基準直径位置を意味する左右一対の丸印表示と、遠視用の度数と近視用の度数の差を意味するアラビア数字表示などで隠しマーク４４を構成している。アラビア数字の表示は、図２において丸印表示より手前側に（ケース前方）に設けてある。また、図示していないが眼鏡レンズ８の凸表面には、レンズの中心線や、丸印表示の大まかな位置、あるいは右用あるいは左用などの表示が印刷してある。これらの印刷表示はレンズの加工が終了した時点で払拭除去される。   An example of the hidden mark 44 formed on the spectacle lens 8 is shown in FIG. There, the hidden mark 44 is composed of a pair of left and right circles indicating the reference diameter position passing through the center of the lens, and an Arabic numeral display indicating the difference between the power for hyperopia and the power for near vision. The display of Arabic numerals is provided on the front side (front of the case) from the circle display in FIG. Although not shown in the drawing, the center line of the lens, the rough position of the round mark display, or the display for right or left is printed on the convex surface of the spectacle lens 8. These printed displays are wiped away when the lens processing is completed.

眼鏡レンズ８の隠しマーク４４を確認する場合には、載置面９に眼鏡レンズ８を載置したうえで、図１および図３に示すように眼鏡レンズ８の周縁をレンズホルダー２に接当させ、さらに先の印刷表示のうち中心線表示を照射開口１０の後縁の真上付近に位置させる。この状態で、電源スイッチ３７をオンしてＬＥＤ２８を点灯する。光源３は、眼鏡レンズ８がガラスである場合には第１照射状態に切り換え、眼鏡レンズ８がプラスチックである場合には第２照射状態に切り換える。   When the hidden mark 44 of the spectacle lens 8 is confirmed, the spectacle lens 8 is placed on the placement surface 9, and the periphery of the spectacle lens 8 is contacted to the lens holder 2 as shown in FIGS. Further, the center line display of the preceding print display is positioned immediately above the rear edge of the irradiation opening 10. In this state, the power switch 37 is turned on to light the LED 28. The light source 3 is switched to the first irradiation state when the spectacle lens 8 is glass, and is switched to the second irradiation state when the spectacle lens 8 is plastic.

第１照射状態における背景体５は、ＬＥＤ２８の直接照射光が背景体５に照射されないので、拡大レンズ６を覗き込んだ状態において殆ど暗黒状に見える。また、第２照射状態の背景体５は、拡大レンズ６を覗き込んだ状態において、格子模様４１の輪郭がにじんだ状態でぼんやりと見える。拡大レンズ６の焦点のあう領域が、載置面９に載置いた眼鏡レンズ８の高さ位置に合致させてあるからである。   Since the background body 5 in the first irradiation state is not irradiated with the direct irradiation light of the LED 28, the background body 5 looks almost dark in a state where the magnifying lens 6 is looked into. In addition, the background body 5 in the second irradiation state looks blurred in a state where the outline of the lattice pattern 41 is blurred when looking into the magnifying lens 6. This is because the in-focus area of the magnifying lens 6 matches the height position of the spectacle lens 8 placed on the placement surface 9.

上記の状態で、眼鏡レンズ８を丸印表示の大まかな位置を示す印刷表示に従って左右いずれかへずらすことにより、隠しマーク４４を視認することができる。ガラス製の眼鏡レンズ８の隠しマーク４４は、レンズ表面に凹溝状に形成されている。そのため、図６に示すように、ＬＥＤ２８から照射される斜め上向きの照明光を受けると、隠しマーク４４は暗黒状に見える背景体５を背景にして乱反射作用により光輝し、明確に確認することができる。   In the above state, the hidden mark 44 can be visually recognized by shifting the spectacle lens 8 to the left or right according to the print display indicating the rough position of the circle display. The hidden mark 44 of the glass spectacle lens 8 is formed in a concave groove shape on the lens surface. Therefore, as shown in FIG. 6, when receiving obliquely upward illumination light emitted from the LED 28, the hidden mark 44 shines by the diffuse reflection action against the background body 5 that looks dark, and can be clearly confirmed. it can.

また、プラスチック製の眼鏡レンズ８の隠しマーク４４は、レンズ表面に凸リブ状に形成されている。そのため、図７に示すように、ＬＥＤ２８から照射されて背景体５で反射された照明光を受けると、凸リブ状の隠しマーク４４は背景体５からの反射光を拡散させる。その結果、拡大レンズ６で見る隠しマーク４４は周辺部位より暗く見え、陰文字として明確に確認することができる。   The hidden mark 44 of the plastic spectacle lens 8 is formed in a convex rib shape on the lens surface. Therefore, as shown in FIG. 7, when receiving illumination light irradiated from the LED 28 and reflected by the background body 5, the convex rib-shaped hidden mark 44 diffuses the reflected light from the background body 5. As a result, the hidden mark 44 seen with the magnifying lens 6 appears darker than the surrounding portion and can be clearly confirmed as a shadow character.

以上のように、本発明の隠しマーク視認装置によれば、切換えつまみ３９を回動操作するだけで、光源３を第１照射状態と第２照射状態とに切り換えて、眼鏡レンズ８の形成素材の違いに応じて照射状態を変更できるので、眼鏡レンズ８の隠しマークをより少ない手間で迅速に、しかも明確に確認することができる。   As described above, according to the hidden mark visual recognition device of the present invention, the light source 3 is switched between the first irradiation state and the second irradiation state only by rotating the switching knob 39, so that the material for forming the spectacle lens 8 is formed. Since the irradiation state can be changed according to the difference, the hidden mark of the spectacle lens 8 can be quickly and clearly confirmed with less effort.

また、蛍光灯を光源とする従来装置に比べて安定器などの余分な機器を省略し、さらにケース構造を簡素化できるので、隠しマーク視認装置の全体構造を大幅に簡素化できるうえ、外形寸法を充分に小さくして全体コストを削減できる。電池１６を電源とするので、商用電源から遠く離れた場所であっても隠しマーク視認装置を問題なく使用できる。加えて、光源として寿命の長いＬＥＤ２８を使用するので、長期にわたって光源のメンテナンスを行なう必要がなく、時おりレンズホルダー２を取り外して電池１６を交換する程度の保守を行なえば足りる。   Compared with conventional devices that use fluorescent lamps as light sources, extra equipment such as ballasts can be omitted, and the case structure can be simplified. The overall structure of the hidden mark visual recognition device can be greatly simplified, and the external dimensions Can be made sufficiently small to reduce the overall cost. Since the battery 16 is used as a power source, the hidden mark visual recognition device can be used without any problem even at a location far away from the commercial power source. In addition, since the long-life LED 28 is used as the light source, it is not necessary to perform maintenance of the light source over a long period of time, and it is sufficient to occasionally perform maintenance to the extent that the lens holder 2 is removed and the battery 16 is replaced.

図８および図９は隠しマーク視認装置の別の実施例を示す。そこでは、光源３の構造が先の実施例と異なっている。詳しくは、載置面９に載置された眼鏡レンズ８を照射する８個の第１ＬＥＤ群（ＬＥＤ）４６と、背景体５を照射する８個の第２ＬＥＤ群（ＬＥＤ）４７と、これらのＬＥＤ群４６・４７を支持する支持体２７とで光源３を構成する。支持体２７は、各ＬＥＤ群４６・４７が実装される回路基板４８・４９と、両基板４８・４９を所定の角度で支持する支持枠５０とで構成する。支持枠５０の両端は本体ケース１に固定してある。   8 and 9 show another embodiment of the hidden mark visual recognition device. There, the structure of the light source 3 is different from the previous embodiment. Specifically, eight first LED groups (LEDs) 46 for irradiating the spectacle lens 8 placed on the placement surface 9, eight second LED groups (LEDs) 47 for irradiating the background body 5, and these The light source 3 is composed of the support 27 that supports the LED groups 46 and 47. The support body 27 includes circuit boards 48 and 49 on which the LED groups 46 and 47 are mounted, and a support frame 50 that supports both the boards 48 and 49 at a predetermined angle. Both ends of the support frame 50 are fixed to the main body case 1.

第１ＬＥＤ群４６の照射中心軸Ｐの傾斜角度は、上記の実施例における第１照射状態時のＬＥＤ２８の照射中心軸Ｐの傾斜角度に一致させてあり、第２ＬＥＤ群４７の照射中心軸Ｐの傾斜角度は、上記の実施例における第２照射状態時のＬＥＤ２８の照射中心軸Ｐの傾斜角度に一致させてある。必要があれば、各ＬＥＤ群４６・４７の照度を異ならせ、あるいは発光色を異ならせて、各ＬＥＤ群４６・４７の発光特性を好適化することができる。他は先の実施例と同じであるので、同じ部材に同じ符号を付してその説明を省略する。   The inclination angle of the irradiation center axis P of the first LED group 46 is matched with the inclination angle of the irradiation center axis P of the LED 28 in the first irradiation state in the above-described embodiment, and the irradiation center axis P of the second LED group 47 The tilt angle is made to coincide with the tilt angle of the irradiation center axis P of the LED 28 in the second irradiation state in the above embodiment. If necessary, the light emission characteristics of the LED groups 46 and 47 can be optimized by changing the illuminance of the LED groups 46 and 47 or changing the emission color. Since others are the same as the previous embodiment, the same reference numerals are assigned to the same members, and descriptions thereof are omitted.

使用時には、電源スイッチ３７をオン操作したのち、本体ケース１の側面に設けた切換えスイッチ（切換具）３９をＧ側あるいはＰ側へ切り換えて、両ＬＥＤ群４６・４７のいずれか一方を点灯させることにより、ガラス製の眼鏡レンズ８およびプラスチック製の眼鏡レンズ８に適合した照明状態を形成することができる。必要があれば、両ＬＥＤ群４６・４７を同時に点灯してもよい。   In use, after the power switch 37 is turned on, the changeover switch (switching tool) 39 provided on the side surface of the main body case 1 is switched to the G side or the P side, and either one of the LED groups 46 and 47 is lit. Thus, an illumination state suitable for the glass spectacle lens 8 and the plastic spectacle lens 8 can be formed. If necessary, both LED groups 46 and 47 may be turned on simultaneously.

上記の実施例以外に、光源３は、拡大レンズ６の中心と照射開口１０の中心を結ぶ垂直の仮想中心軸線よりもケース前方へ位置ずれした状態で配置することができる。必要があれば、平面から見て先の仮想中心軸線よりもケース側方、あるいは斜め側方に位置ずれした状態で配置することができ、要は照明光が直接に拡大レンズ６に照射されない位置であればよい。電源スイッチ３７はパイロットランプ（ＬＥＤ）が組み込まれたスイッチであってもよい。   In addition to the above-described embodiment, the light source 3 can be arranged in a state of being shifted to the front of the case with respect to the vertical virtual center axis line connecting the center of the magnifying lens 6 and the center of the irradiation opening 10. If necessary, it can be arranged in a state shifted from the imaginary central axis in the case side or oblique side with respect to the previous virtual center axis, and the point is that the illumination light is not directly irradiated on the magnifying lens 6. If it is. The power switch 37 may be a switch in which a pilot lamp (LED) is incorporated.

拡大レンズ６のレンズ中心軸は垂直である必要はなく、斜めに傾斜することができる。光源３の照射中心軸Ｐを第１照射状態から第２照射状態に変位する構造としては、回動軸３０を中心とする回動変位である必要はない。例えば、回路基板２７の両端に固定した一対のピンを本体ケース１に設けたガイド溝で案内して、光源３の姿勢を変更することができる。本体ケース１は角箱状である必要はなく、丸筒状や角錐台状など任意形状に形成できる。電池開口１８を本体ケース１の底壁に開口し、専用の蓋体で開閉することができる。   The lens central axis of the magnifying lens 6 does not have to be vertical, and can be inclined obliquely. The structure for displacing the irradiation center axis P of the light source 3 from the first irradiation state to the second irradiation state does not have to be a rotation displacement around the rotation shaft 30. For example, the posture of the light source 3 can be changed by guiding a pair of pins fixed to both ends of the circuit board 27 with guide grooves provided in the main body case 1. The main body case 1 does not need to have a square box shape, and can be formed in an arbitrary shape such as a round tube shape or a truncated pyramid shape. The battery opening 18 is opened in the bottom wall of the main body case 1 and can be opened and closed with a dedicated lid.

隠しマーク視認装置の縦断側面図である。It is a vertical side view of a hidden mark visual recognition apparatus. 隠しマーク視認装置の斜視図である。It is a perspective view of a hidden mark visual recognition device. 隠しマーク視認装置の平面図である。It is a top view of a hidden mark visual recognition apparatus. 光源の詳細構造を示す横断平面図である。It is a cross-sectional top view which shows the detailed structure of a light source. 図１におけるＡ−Ａ線断面図である。It is the sectional view on the AA line in FIG. 第１照射状態の光源を示す縦断側面図である。It is a vertical side view which shows the light source of a 1st irradiation state. 第２照射状態の光源を示す縦断側面図である。It is a vertical side view which shows the light source of a 2nd irradiation state. 別の実施例に係る隠しマーク視認装置の斜視図である。It is a perspective view of the hidden mark visual recognition apparatus which concerns on another Example. 別の実施例に係る光源の構造を示す縦断側面図である。It is a vertical side view which shows the structure of the light source which concerns on another Example.

符号の説明Explanation of symbols

１ 本体ケース
２ レンズホルダー
３ 光源
５ 背景体
６ 拡大レンズ
８ 眼鏡レンズ
９ 載置面
１０ 照射開口
２７ 支持体（回路基板）
２８ ＬＥＤ
３０ 回動軸
３９ 切換具（切換えつまみ） DESCRIPTION OF SYMBOLS 1 Main body case 2 Lens holder 3 Light source 5 Background body 6 Magnifying lens 8 Eyeglass lens 9 Placement surface 10 Irradiation opening 27 Support body (circuit board)
28 LED
30 Rotating shaft 39 Switching tool (switching knob)

Claims (6)

光源（３）および背景体（５）を収容する本体ケース（１）と、拡大レンズ（６）を支持するレンズホルダー（２）とを備えており、
本体ケース（１）の上面には、眼鏡レンズ（８）を載置するための載置面（９）と、載置面（９）に臨んで開口する照射開口（１０）とが設けられており、
背景体（５）は、照射開口（１０）を介して拡大レンズ（６）と正対する状態で本体ケース内（１）に配置されており、
光源（３）は複数個のＬＥＤ（２８）を含んで構成されて、背景体（５）の斜め上方に配置されており、
ＬＥＤ（２８）から照射される照明光の照射中心軸（Ｐ）が、載置面（９）に載置した眼鏡レンズ（８）を指向する第１照射状態と、背景体（５）を指向する第２照射状態とに切り換えできるように光源（３）が構成されており、
本体ケース（１）の外面に、前記光源（３）を第１照射状態と第２照射状態とに切り換える切換具（３９）が設けてあることを特徴とする眼鏡レンズの隠しマーク視認装置。 A main body case (1) for housing the light source (3) and the background body (5), and a lens holder (2) for supporting the magnifying lens (6);
On the upper surface of the main body case (1), there are provided a placement surface (9) for placing the spectacle lens (8) and an irradiation opening (10) that opens to face the placement surface (9). And
The background body (5) is disposed in the main body case (1) in a state of facing the magnifying lens (6) through the irradiation opening (10),
The light source (3) includes a plurality of LEDs (28) and is disposed obliquely above the background body (5).
The irradiation central axis (P) of the illumination light emitted from the LED (28) is directed to the first irradiation state in which the spectacle lens (8) placed on the placement surface (9) is directed and the background body (5). The light source (3) is configured so that it can be switched to the second irradiation state.
A hidden mark visual recognition device for a spectacle lens, characterized in that a switching tool (39) for switching the light source (3) between a first irradiation state and a second irradiation state is provided on the outer surface of the main body case (1). 光源（３）が、複数個のＬＥＤ（２８）と、これらのＬＥＤ（２８）を支持する支持体（２７）とで構成されており、
前記支持体（２７）は、ＬＥＤ（２８）の照射中心軸（Ｐ）が載置面（９）に載置した眼鏡レンズ（８）を指向する第１照射状態と、ＬＥＤ（２８）の照射中心軸（Ｐ）が背景体を指向する第２照射状態とに変位可能に本体ケース（１）で支持されており、
本体ケース（１）の外面に、前記支持体（２７）を変位操作する切換えつまみ（３９）が設けてある請求項１に記載の眼鏡レンズの隠しマーク視認装置。 The light source (3) is composed of a plurality of LEDs (28) and a support (27) that supports these LEDs (28).
The support (27) has a first irradiation state in which the irradiation central axis (P) of the LED (28) is directed to the spectacle lens (8) mounted on the mounting surface (9), and irradiation of the LED (28). The central axis (P) is supported by the main body case (1) so as to be displaceable to the second irradiation state in which the background body is oriented.
The hidden mark visual recognition device for a spectacle lens according to claim 1, wherein a switching knob (39) for displacing the support (27) is provided on the outer surface of the main body case (1). 光源（３）が、載置面（９）に載置した眼鏡レンズ（８）を照射する複数個の第１ＬＥＤ群（４６）と、背景体５を照射する複数個の第２ＬＥＤ群（４７）と、これらのＬＥＤ群（４６・４７）を支持する支持体（２７）とで構成されており、
本体ケース（１）の外面に、前記第１ＬＥＤ群（４６）と第２ＬＥＤ群（４７）の点灯状態を切り換える切換えスイッチ（３９）が設けてある請求項１に記載の眼鏡レンズの隠しマーク視認装置。 The light source (3) has a plurality of first LED groups (46) for irradiating the spectacle lens (8) placed on the placement surface (9), and a plurality of second LED groups (47) for irradiating the background body 5. And a support (27) that supports these LED groups (46, 47),
The eyeglass lens hidden mark visualizing device according to claim 1, wherein a changeover switch (39) for switching the lighting state of the first LED group (46) and the second LED group (47) is provided on an outer surface of the main body case (1). . 拡大レンズ（６）の焦点領域が、載置面（９）に載置した眼鏡レンズ（８）の高さ位置に合致してある請求項１、２または３に記載の眼鏡レンズの隠しマーク視認装置。   The hidden mark visual recognition of the spectacle lens according to claim 1, 2 or 3, wherein the focal region of the magnifying lens (6) matches the height position of the spectacle lens (8) placed on the placement surface (9). apparatus. 本体ケース（１）の内部に、光源点灯用の電池（１６）が収容されており、
本体ケース（１）が中空箱状に形成されて、その前後面および左右側面のいずれかひとつに電池開口（１８）が開口されており、
レンズホルダー（２）が、電池開口（１８）を塞ぐ蓋体を兼ねて、本体ケース（１）に対して着脱可能に固定してある請求項１から４のいずれかに記載の眼鏡レンズの隠しマーク視認装置。 A battery (16) for lighting the light source is accommodated in the body case (1).
The main body case (1) is formed in a hollow box shape, and the battery opening (18) is opened on any one of the front and rear surfaces and the left and right side surfaces thereof,
The concealment of the spectacle lens according to any one of claims 1 to 4, wherein the lens holder (2) serves as a lid for closing the battery opening (18) and is detachably fixed to the main body case (1). Mark visual recognition device. 回路基板（２７）で構成された支持体が、本体ケース（１）で回動変位自在に軸支される回動軸（３０）に固定されており、
前記回動軸（３０）と本体ケース（１）との間に、回路基板（２７）を任意の回動位置において位置保持する摩擦抵抗体（３１）が配置してある請求項２、４または５に記載の眼鏡レンズの隠しマーク視認装置。 A support body composed of a circuit board (27) is fixed to a rotation shaft (30) supported rotatably by the main body case (1).
A friction resistor (31) for holding the circuit board (27) at an arbitrary rotation position is disposed between the rotation shaft (30) and the main body case (1). The hidden-mark visual recognition apparatus of the spectacle lens of 5.
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