JP5406665B2 - Light emitting device using liquid crystal lens - Google Patents
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- JP5406665B2 JP5406665B2 JP2009246816A JP2009246816A JP5406665B2 JP 5406665 B2 JP5406665 B2 JP 5406665B2 JP 2009246816 A JP2009246816 A JP 2009246816A JP 2009246816 A JP2009246816 A JP 2009246816A JP 5406665 B2 JP5406665 B2 JP 5406665B2
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Description
本発明は、発光部からの出力光を液晶レンズにより集めて配光する発光装置に関する。 The present invention relates to a light-emitting device that collects and distributes output light from a light-emitting unit by a liquid crystal lens.
従来から、発光部から照射される出力光を、液晶レンズで集めて配光する発光装置が知られている（例えば、特許文献１参照）。図１５は、このような発光装置１０１の構成を示す。発光装置１０１は、筐体１０２と、筐体１０２に収容される発光部１０３と、発光部１０３からの出力光を集めて配光する液晶レンズ１０４と、液晶レンズ１０４の外周縁端部に接続された給電部１０５と、を備える。給電部１０５は、液晶レンズ１０４を駆動制御し、給電ライン１１２で繋がっている液晶レンズ制御回路１１１と電気的に接続されている。 Conventionally, a light-emitting device that collects and distributes output light emitted from a light-emitting unit with a liquid crystal lens is known (for example, see Patent Document 1). FIG. 15 shows a configuration of such a light emitting device 101. The light emitting device 101 is connected to a housing 102, a light emitting unit 103 accommodated in the housing 102, a liquid crystal lens 104 that collects and distributes output light from the light emitting unit 103, and an outer peripheral edge of the liquid crystal lens 104. The power supply unit 105 is provided. The power supply unit 105 drives and controls the liquid crystal lens 104 and is electrically connected to a liquid crystal lens control circuit 111 connected by a power supply line 112.
発光装置１０１は、給電部１０５を介して液晶レンズ制御回路１１１から液晶レンズ１０４を制御するための電力が供給されて、液晶レンズ１０４の屈折率が調整されることにより、光の照射範囲を制御することができる。しかしながら、この発光装置１０１は、給電部１０５が筐体１０２の外部に配置されているので、装置が大型化する。また、給電部１０５を筐体１０２に収容したとき、給電部１０５が発光部１０３からの出力光を遮光し、発光効率が低下する虞がある。 The light emitting device 101 is supplied with electric power for controlling the liquid crystal lens 104 from the liquid crystal lens control circuit 111 via the power supply unit 105, and adjusts the refractive index of the liquid crystal lens 104, thereby controlling the light irradiation range. can do. However, since the power supply unit 105 is disposed outside the housing 102, the light emitting device 101 is increased in size. Further, when the power feeding unit 105 is accommodated in the housing 102, the power feeding unit 105 may block the output light from the light emitting unit 103, and the light emission efficiency may be reduced.
本発明は、上記問題を解決するためになされたものであり、給電部が発光部からの出力光を遮光して発光効率が低下することを防止しつつ、装置を小型化することができる発光装置を提供することを目的とする。 The present invention has been made in order to solve the above-described problem. The light emitting device can reduce the size of the device while preventing the power feeding unit from blocking the output light from the light emitting unit to reduce the light emission efficiency. An object is to provide an apparatus.
上記目的を達成するために請求項１の発明は、発光部と、前記発光部を収容し、光を照射するための開口を有する筐体と、前記筐体の開口に臨むように配置される液晶レンズと、を備えた液晶レンズを用いる発光装置であって、前記液晶レンズを制御する電力を外部電源から受ける給電部を備え、前記液晶レンズは、前記筐体の開口と重畳する内周領域と、前記筐体の開口の外側であって開口と重畳しない外周領域とを有し、前記内周領域内には液晶が封入されており、前記外周領域には前記給電部が配置され、前記給電部は、前記液晶レンズの外周領域を保持すると共に、液晶レンズ側電極部及び筐体側端子部との間を電気接続する電極部を有し、前記筐体の開口より外周側に配置されるものである。 In order to achieve the above object, the invention of claim 1 is arranged so as to face the opening of the light emitting part, the case that houses the light emitting part and has an opening for irradiating light. A light-emitting device using a liquid crystal lens including a liquid crystal lens, comprising: a power supply unit that receives power for controlling the liquid crystal lens from an external power source; and the liquid crystal lens overlaps with an opening of the housing When the an outer opening of the casing and a peripheral region that does not overlap with the opening, the said inner region and the liquid crystal is sealed, the feeding portion is disposed on the outer peripheral region, the The power supply unit holds an outer peripheral region of the liquid crystal lens and has an electrode unit that electrically connects the liquid crystal lens side electrode unit and the housing side terminal unit, and is disposed on the outer peripheral side from the opening of the housing. Is.
請求項１の発明によれば、給電部を液晶レンズの外周領域であって、筐体の外周内に設けることができるので、筐体の開口から照射される光が給電部によって遮光されることがなく、装置を小型化することができる。また、給電部が筐体の開口より外周側に配置されるので、筐体の開口から照射される光が筐体側端子部によって遮光されることがなく、装置をより小型化することができる。 According to the first aspect of the present invention, since the power feeding portion can be provided in the outer peripheral region of the liquid crystal lens and in the outer periphery of the housing, the light emitted from the opening of the housing is shielded by the power feeding portion. Therefore, the apparatus can be reduced in size. In addition, since the power feeding unit is arranged on the outer peripheral side from the opening of the housing, the light emitted from the opening of the housing is not shielded by the housing-side terminal unit, and the apparatus can be further downsized.
（第１の実施形態）
本発明の第１の実施形態に係る発光装置について、図１乃至図６を参照して説明する。図１及び図２に示されるように、液晶レンズを用いる発光装置１は、筐体２と、筐体２に収容される発光部３と、発光部３からの出力光を集めて配光する液晶レンズ４と、液晶レンズ４に給電するための給電部５、６と、発光部３を点灯制御する点灯回路１０と、液晶レンズ４を駆動制御する液晶レンズ制御回路１１（以下、制御回路という）と、を備える。給電部５、６は、液晶レンズ４の外周縁の一部（図２において左右対称位置）を溝部１５で挟んで支持し、液晶レンズ４を制御するための電力を供給する。液晶レンズ４は、供給される電圧に応じて屈折率が調整され、光の照射範囲を制御するものである。
(First embodiment)
A light emitting device according to a first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the light emitting device 1 using a liquid crystal lens collects and distributes a housing 2, a light emitting unit 3 accommodated in the housing 2, and output light from the light emitting unit 3. A liquid crystal lens 4, power supply units 5 and 6 for supplying power to the liquid crystal lens 4, a lighting circuit 10 that controls the lighting of the light emitting unit 3, and a liquid crystal lens control circuit 11 that drives and controls the liquid crystal lens 4 (hereinafter referred to as a control circuit). And). The power feeding units 5 and 6 support a part of the outer peripheral edge of the liquid crystal lens 4 (a symmetric position in FIG. 2) sandwiched between the grooves 15 and supply electric power for controlling the liquid crystal lens 4. The liquid crystal lens 4 has a refractive index adjusted according to the supplied voltage, and controls the light irradiation range.
筐体２は、一方側に開口８を有した筒形状であり、発光部３からの出力光を液晶レンズ４へ向けて反射する反射板７と、給電部５、６と機械的及び電気的に接続される筐体側端子部９（以下、端子部という）と、を備える。また、筐体２は、点灯回路１０と、制御回路１１と、端子部９と制御回路１１を繋ぐ給電ライン１２と、を収容する。点灯回路１０と制御回路１１への電源供給は外部電源（図示せず）から行われる。 The housing 2 has a cylindrical shape having an opening 8 on one side, and reflects the output light from the light emitting unit 3 toward the liquid crystal lens 4, the power feeding units 5 and 6, and mechanical and electrical. And a housing side terminal portion 9 (hereinafter referred to as a terminal portion) connected to the housing. The housing 2 houses the lighting circuit 10, the control circuit 11, and the power supply line 12 that connects the terminal unit 9 and the control circuit 11. Power is supplied to the lighting circuit 10 and the control circuit 11 from an external power source (not shown).
発光部３は、例えば、ＬＥＤチップ、蛍光灯、白熱灯、高輝度放電灯などで構成される。液晶レンズ４は、円板形状に形成され、平面視において筐体２の開口８と重畳する内周領域１３と、筐体２の開口８の外側であって開口８と重畳しない外周領域１４と、を有し、筐体２の開口８に臨むように配置される。 The light emitting unit 3 is composed of, for example, an LED chip, a fluorescent lamp, an incandescent lamp, a high-intensity discharge lamp, and the like. The liquid crystal lens 4 is formed in a disc shape and has an inner peripheral region 13 that overlaps the opening 8 of the housing 2 in a plan view, and an outer peripheral region 14 that is outside the opening 8 of the housing 2 and does not overlap the opening 8. Are arranged so as to face the opening 8 of the housing 2.
給電部５、６は、液晶レンズ４の外周領域１４を保持し、筐体２の開口８側にある端面３７上に配置される。反射板７は、筐体２の開口８へ向けて拡径した椀状に形成され、内面に光反射率の高いアルミニウムが蒸着された樹脂構造体から成る。 The power feeding units 5 and 6 hold the outer peripheral region 14 of the liquid crystal lens 4 and are disposed on the end surface 37 on the opening 8 side of the housing 2. The reflection plate 7 is formed in a bowl shape whose diameter is expanded toward the opening 8 of the housing 2 and is made of a resin structure in which aluminum having a high light reflectance is deposited on the inner surface.
図３及び図４に示されるように、液晶レンズ４は、２枚の透明基板２０、２１と、これら透明基板２０、２１に封入される液晶２２と、液晶２２を制御するための電圧を印加する液晶レンズ側電極部２３と、透明基板２０、２１間に液晶２２を封じ込めるためのシール材２４と、を有する。液晶レンズ側電極部２３は、透明基板２０、２１の対向面に設けられ、給電部５、６から電力供給を受ける。透明基板２０、２１は、円状に形成されたガラス板や透明なプラスチック板から成る。液晶２２は、シール材２４が液晶レンズ側電極部２３の最外周に沿って設けられることで、液晶レンズ４の内周領域１３内に配置される。 As shown in FIGS. 3 and 4, the liquid crystal lens 4 applies two transparent substrates 20 and 21, a liquid crystal 22 sealed in the transparent substrates 20 and 21, and a voltage for controlling the liquid crystal 22. A liquid crystal lens side electrode portion 23 and a sealing material 24 for containing the liquid crystal 22 between the transparent substrates 20 and 21. The liquid crystal lens side electrode unit 23 is provided on the opposing surface of the transparent substrates 20 and 21 and receives power supply from the power supply units 5 and 6. The transparent substrates 20 and 21 are made of a circular glass plate or a transparent plastic plate. The liquid crystal 22 is disposed in the inner peripheral region 13 of the liquid crystal lens 4 by providing the sealing material 24 along the outermost periphery of the liquid crystal lens side electrode portion 23.
液晶レンズ側電極部２３は、ＩＴＯ透明導電膜から成り、図中で上側の透明基板２０に設けられた中心電極２５及び帯状電極２６、２７と、図中で下側の透明基板２１に設けられた円状電極２８と、を有する。各電極２５〜２８は、引出電極２５ａ、２６ａ、２７ａ、２８ａをそれぞれ有する。中心電極２５は円状に形成され、帯状電極２６、２７はＣ字の相似形状にそれぞれ形成され、中心電極２５の外周に各Ｃ字の切欠部分の開口方向が揃えられて配置される。各電極２５〜２７は引出電極２５ａ〜２７ａを介して給電部５と、円状電極２８は引出電極２８ａを介して給電部６とそれぞれ繋がっており、制御回路１１により個別に電圧制御される。これら電極２５〜２８の形状は、上記に限定されず、例えば、透明基板２０に設けられた中心電極２５及び帯状電極２６、２７と同じ形状の電極が透明基板２１に設けられていてもよい。 The liquid crystal lens side electrode portion 23 is made of an ITO transparent conductive film, and is provided on the center electrode 25 and the strip electrodes 26 and 27 provided on the upper transparent substrate 20 in the drawing, and on the lower transparent substrate 21 in the drawing. And a circular electrode 28. Each electrode 25-28 has extraction electrode 25a, 26a, 27a, 28a, respectively. The center electrode 25 is formed in a circular shape, and the strip electrodes 26 and 27 are formed in a C-shaped similar shape, and the opening direction of each C-shaped notch portion is arranged on the outer periphery of the center electrode 25. Each of the electrodes 25 to 27 is connected to the power supply unit 5 via the extraction electrodes 25 a to 27 a, and the circular electrode 28 is connected to the power supply unit 6 via the extraction electrode 28 a, and is individually voltage controlled by the control circuit 11. The shapes of these electrodes 25 to 28 are not limited to the above. For example, electrodes having the same shape as the center electrode 25 and the strip electrodes 26 and 27 provided on the transparent substrate 20 may be provided on the transparent substrate 21.
液晶レンズ４の外周縁まで引き出された引出電極２５ａ〜２８ａは、後述する給電部５、６の導通部１６と接触し易いように、透明基板２０、２１の各端面にまでさらに引き出される。なお、引出電極２５ａ〜２８ａは、透明基板２０、２１の端面にまで引き出されるのではなく、透明基板２０、２１の端面に各引出電極と対応する導体が形成され、この導体と繋がる位置にまで引き出されてもよい。 The extraction electrodes 25a to 28a drawn to the outer peripheral edge of the liquid crystal lens 4 are further drawn to the end surfaces of the transparent substrates 20 and 21 so as to easily come into contact with the conduction portions 16 of the power feeding portions 5 and 6 described later. The extraction electrodes 25a to 28a are not drawn out to the end surfaces of the transparent substrates 20 and 21, but are formed on the end surfaces of the transparent substrates 20 and 21 so that conductors corresponding to the extraction electrodes are formed and connected to the conductors. It may be pulled out.
液晶レンズ４は、制御回路１１による制御の下、中心電極２５、帯状電極２６、２７及び円状電極２８にそれぞれ異なる電圧が印加されることにより、液晶２２内の液晶分子の配光が制御されて、液晶２２の屈折率を調整することができる。 Under the control of the control circuit 11, the liquid crystal lens 4 is applied with different voltages to the center electrode 25, the strip electrodes 26, 27 and the circular electrode 28, thereby controlling the light distribution of the liquid crystal molecules in the liquid crystal 22. Thus, the refractive index of the liquid crystal 22 can be adjusted.
図５及び図６に示されるように、給電部５、６は、断面Ｕ字状のブロック体であり、液晶レンズ４を支持するための溝部１５と、電極部である複数の導通部１６及び給電ピン１７と、を有する。導通部１６及び給電ピン１７は、対応するもの同士が電気的に接続されており、さらに液晶レンズ側電極部２３と端子部９との間を電気的に接続するものである。なお、給電部５は、液晶レンズ４の３つの引出電極２５ａ〜２７ａと接するので、３つの導通部１６と３本の給電ピン１７を有し、給電部６は、液晶レンズ４の１つの引出電極２８ａと接するので、１つの導通部１６と１本の給電ピン１７を有し、さらに端子部９への保持力を向上させるための２本のダミーピン１８を有する。 As shown in FIGS. 5 and 6, the power feeding portions 5 and 6 are block bodies having a U-shaped cross section, and a groove portion 15 for supporting the liquid crystal lens 4, a plurality of conductive portions 16 that are electrode portions, and And a power supply pin 17. Corresponding parts of the conduction part 16 and the power supply pin 17 are electrically connected to each other, and further, the liquid crystal lens side electrode part 23 and the terminal part 9 are electrically connected. Since the power supply unit 5 is in contact with the three extraction electrodes 25 a to 27 a of the liquid crystal lens 4, the power supply unit 5 has three conduction units 16 and three power supply pins 17, and the power supply unit 6 is one extraction of the liquid crystal lens 4. Since it is in contact with the electrode 28a, it has one conducting portion 16 and one power supply pin 17, and further has two dummy pins 18 for improving the holding force to the terminal portion 9.
端子部９は、筐体２の開口８側にある端面３７に埋め込まれるブロック体であり、給電部５、６の給電ピン１７やダミーピン１８が挿入される挿入口１９を有し、挿入口１９に設けた導体に給電ライン１２が接続されており、これにより、給電ライン１２を介して制御回路１１と繋がっている。 The terminal portion 9 is a block body embedded in the end surface 37 on the opening 8 side of the housing 2, and has an insertion port 19 into which the power supply pins 17 and the dummy pins 18 of the power supply units 5 and 6 are inserted. Is connected to the control circuit 11 via the power supply line 12.
このような構成の発光装置１によれば、給電部５、６を液晶レンズ４の外周領域１４であって、筐体２の外周内に設けることができるので、筐体２の開口８から照射される光が給電部５、６によって遮光されることがなく、装置を小型化することができる。また、給電部５、６が筐体２の開口８より外周側に配置されるので、筐体２の開口８から照射される光が端子部９によって遮光されることがなく、装置をより小型化することができる。 According to the light emitting device 1 having such a configuration, the power feeding units 5 and 6 can be provided in the outer peripheral region 14 of the liquid crystal lens 4 and in the outer periphery of the housing 2. The light to be transmitted is not shielded by the power feeding units 5 and 6, and the apparatus can be miniaturized. Further, since the power feeding units 5 and 6 are arranged on the outer peripheral side from the opening 8 of the housing 2, the light emitted from the opening 8 of the housing 2 is not shielded by the terminal unit 9, and the apparatus is more compact. Can be
図７乃至図９は、上記実施形態の変形例に係る発光装置１の液晶レンズ４及び給電部５を示す。この発光装置１の液晶レンズ４は、引出電極２５ａ〜２８ａが全て同じ方向に向かって引き出されて形成され、これら引出電極２５ａ〜２８ａは全て一方の給電部５に接続される。この給電部５は、液晶レンズ４の４つの引出電極２５ａ〜２８ａと接するので、４つの導通部１６と４本の給電ピン１７を有する。他方の給電部相当は、給電構成を有さないもので、液晶レンズ４を支持する機能を有するものでよい。この変形例においても、上述の発光装置１と同等の作用効果が得られる。 7 to 9 show the liquid crystal lens 4 and the power feeding unit 5 of the light emitting device 1 according to the modification of the above embodiment. The liquid crystal lens 4 of the light emitting device 1 is formed by extracting all the extraction electrodes 25 a to 28 a in the same direction, and all the extraction electrodes 25 a to 28 a are connected to one power supply unit 5. Since the power supply unit 5 is in contact with the four extraction electrodes 25 a to 28 a of the liquid crystal lens 4, the power supply unit 5 includes four conduction units 16 and four power supply pins 17. The other power supply unit has no power supply structure and may have a function of supporting the liquid crystal lens 4. Also in this modified example, the same effect as the light emitting device 1 described above can be obtained.
（第２の実施形態）
図１０（ａ）（ｂ）は、第２の実施形態に係る発光装置１の液晶レンズ４と給電部５を示す。この発光装置１の給電部５は溝部１５の溝の一端を塞ぐように壁部３２を有し、液晶レンズ４は給電部５の壁部３２と対向する位置に切欠部３３を有する。液晶レンズ４は、その切欠部３３が給電部５の壁部３２と嵌合して給電部５に支持される。このため、各導通部１６と引出電極２５ａ〜２７ａの位置ずれが防止され、液晶レンズ４への給電が確実となる。なお、他方の給電部６に給電部５と同様の構成を有してもよい。
(Second Embodiment)
FIGS. 10A and 10B show the liquid crystal lens 4 and the power feeding unit 5 of the light emitting device 1 according to the second embodiment. The light feeding device 5 of the light emitting device 1 has a wall portion 32 so as to close one end of the groove of the groove portion 15, and the liquid crystal lens 4 has a notch 33 at a position facing the wall portion 32 of the power feeding portion 5. The liquid crystal lens 4 is supported by the power feeding unit 5 with the notch 33 fitting with the wall 32 of the power feeding unit 5. For this reason, the position shift of each conduction | electrical_connection part 16 and extraction electrode 25a-27a is prevented, and the electric power feeding to the liquid crystal lens 4 becomes reliable. The other power supply unit 6 may have the same configuration as the power supply unit 5.
図１１（ａ）（ｂ）は、上記実施形態の第１の変形例に係る発光装置１の液晶レンズ４と給電部５を示す。この発光装置１の給電部５は溝部１５の溝の両端を塞ぐように２つの壁部３２を有し、液晶レンズ４は給電部５の壁部３２と対向する位置に切欠部３３を有する。液晶レンズ４は、その切欠部３３が給電部５の２つの壁部３２と嵌合して給電部５に支持される。このため、各導通部１６と引出電極２５ａ〜２７ａの位置ずれがより防止され、液晶レンズ４への給電がより確実となる。 11A and 11B show the liquid crystal lens 4 and the power feeding unit 5 of the light emitting device 1 according to the first modification of the above embodiment. The power feeding unit 5 of the light emitting device 1 has two wall portions 32 so as to block both ends of the groove 15, and the liquid crystal lens 4 has a notch 33 at a position facing the wall portion 32 of the power feeding unit 5. The liquid crystal lens 4 is supported by the power supply unit 5 with the notch 33 fitting with the two wall portions 32 of the power supply unit 5. For this reason, the position shift of each conduction | electrical_connection part 16 and extraction electrode 25a-27a is prevented more, and the electric power feeding to the liquid crystal lens 4 becomes more reliable.
図１２（ａ）（ｂ）（ｃ）は、上記実施形態の第２の変形例に係る発光装置１の液晶レンズ４と給電部５を示す。この発光装置１の給電部５は溝部１５にある導通部１６間に凸部３４を有し、液晶レンズ４は給電部５の凸部３４と対向する位置に凹部３５を有する。液晶レンズ４は、その凹部３５が液晶レンズ４の凸部３４と嵌合して給電部５に支持される。このため、各導通部１６と引出電極２５ａ〜２７ａの位置ずれがより防止され、液晶レンズ４への給電がより確実となる。 12A, 12B, and 12C show the liquid crystal lens 4 and the power feeding unit 5 of the light emitting device 1 according to the second modification of the above embodiment. The light feeding device 5 of the light emitting device 1 has a convex portion 34 between the conducting portions 16 in the groove portion 15, and the liquid crystal lens 4 has a concave portion 35 at a position facing the convex portion 34 of the power feeding portion 5. The liquid crystal lens 4 is supported by the power feeding unit 5 with the concave portion 35 fitted into the convex portion 34 of the liquid crystal lens 4. For this reason, the position shift of each conduction | electrical_connection part 16 and extraction electrode 25a-27a is prevented more, and the electric power feeding to the liquid crystal lens 4 becomes more reliable.
（第３の実施形態）
図１３は、第３の実施形態に係る発光装置１を示す。この発光装置１は、給電部５、６に加えて、液晶レンズ４を支持するための複数の接続部５１をさらに備える。接続部５１は、断面Ｕ字状のブロック体であり、前述給電部の構成と同様に、液晶レンズ４を支持するための溝部と、筐体２に保持されるためのダミーピンと、を有する。筐体２は、開口８側にある端面３７上に接続部５１のダミーピンが挿入される挿入口（図示なし）を有する。液晶レンズ４は、給電部５、６及び接続部５１により支持されるので、筐体２に確実に保持される。
(Third embodiment)
FIG. 13 shows a light emitting device 1 according to the third embodiment. The light emitting device 1 further includes a plurality of connection portions 51 for supporting the liquid crystal lens 4 in addition to the power feeding portions 5 and 6. The connecting portion 51 is a block body having a U-shaped cross section, and has a groove portion for supporting the liquid crystal lens 4 and a dummy pin to be held by the housing 2, similarly to the configuration of the power feeding portion. The housing 2 has an insertion port (not shown) through which the dummy pin of the connection portion 51 is inserted on the end surface 37 on the opening 8 side. Since the liquid crystal lens 4 is supported by the power supply units 5 and 6 and the connection unit 51, the liquid crystal lens 4 is securely held by the housing 2.
図１４は、上記実施形態の変形例に係る発光装置１を示す。この発光装置１は、上記接続部５１に代えて、液晶レンズ４の表面から筐体２に向かって設けられた孔を挿通するようにして取り付けられるネジ５３を有する。液晶レンズ４は、給電部５、６及びネジ５３により支持されるので、筐体２に確実に保持される。 FIG. 14 shows a light emitting device 1 according to a modification of the above embodiment. The light emitting device 1 has a screw 53 that is attached so as to be inserted through a hole provided from the surface of the liquid crystal lens 4 toward the housing 2 in place of the connection portion 51. Since the liquid crystal lens 4 is supported by the power feeding units 5 and 6 and the screw 53, the liquid crystal lens 4 is securely held by the housing 2.
なお、本発明は、上記の実施形態の構成に限られず、発明の要旨を変更しない範囲で種々の変形が可能である。例えば、上記実施形態では、給電部や接続部によって液晶レンズが支持されるものを示したが、筐体の開口側にある端面上に複数の爪部を設け、この爪部で液晶レンズの外周縁を挟んで液晶レンズを支持するものであっても構わない。 In addition, this invention is not restricted to the structure of said embodiment, A various deformation | transformation is possible in the range which does not change the summary of invention. For example, in the above-described embodiment, the liquid crystal lens is supported by the power feeding unit or the connection unit. However, a plurality of claw portions are provided on the end surface on the opening side of the housing, and the claw portion is used to remove the liquid crystal lens. The liquid crystal lens may be supported with the peripheral edge interposed therebetween.
１ 発光装置（液晶レンズを用いる発光装置）
２ 筐体
３ 発光部
４ 液晶レンズ
５、６ 給電部
８ 開口
９ 端子部（筐体側端子部）
１２ 給電ライン
１３ 内周領域
１４ 外周領域
１６ 導通部（電極部）
１７ 給電ピン（電極部）
２０、２１ 透明基板
２２ 液晶
２３ 液晶レンズ側電極部
1 Light-emitting device (light-emitting device using a liquid crystal lens)
2 Housing 3 Light emitting unit 4 Liquid crystal lens 5, 6 Power feeding unit 8 Opening 9 Terminal unit (housing side terminal unit)
12 Feeding line 13 Inner peripheral area 14 Outer peripheral area 16 Conducting part (electrode part)
17 Power supply pin (electrode part)
20, 21 Transparent substrate 22 Liquid crystal 23 Liquid crystal lens side electrode part
Claims (1)
前記液晶レンズを制御する電力を外部電源から受ける給電部を備え、
前記液晶レンズは、前記筐体の開口と重畳する内周領域と、前記筐体の開口の外側であって開口と重畳しない外周領域とを有し、前記内周領域内には液晶が封入されており、前記外周領域には前記給電部が配置され、
前記給電部は、前記液晶レンズの外周領域を保持すると共に、液晶レンズ側電極部及び筐体側端子部との間を電気接続する電極部を有し、前記筐体の開口より外周側に配置されることを特徴とする液晶レンズを用いる発光装置。 A light emitting device using a liquid crystal lens comprising: a light emitting unit; a housing that houses the light emitting unit; and a liquid crystal lens that is disposed so as to face the opening of the housing,
A power supply unit that receives electric power for controlling the liquid crystal lens from an external power source,
The liquid crystal lens has an inner peripheral region that overlaps with the opening of the housing and an outer peripheral region that is outside the opening of the housing and does not overlap with the opening, and liquid crystal is sealed in the inner peripheral region. And the power feeding part is disposed in the outer peripheral region ,
The power feeding unit holds an outer peripheral region of the liquid crystal lens and includes an electrode unit that electrically connects the liquid crystal lens side electrode unit and the housing side terminal unit, and is disposed on the outer peripheral side from the opening of the housing. emitting device using a liquid crystal lens, characterized in that that.
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| JP2009246816A JP5406665B2 (en) | 2009-10-27 | 2009-10-27 | Light emitting device using liquid crystal lens |
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