TWI448814B - Camera module - Google Patents
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- TWI448814B TWI448814B TW098118292A TW98118292A TWI448814B TW I448814 B TWI448814 B TW I448814B TW 098118292 A TW098118292 A TW 098118292A TW 98118292 A TW98118292 A TW 98118292A TW I448814 B TWI448814 B TW I448814B
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- electromagnet
- camera module
- magnetic
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- control unit
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- 239000002122 magnetic nanoparticle Substances 0.000 claims description 32
- 239000007788 liquid Substances 0.000 claims description 22
- 239000011553 magnetic fluid Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000004094 surface-active agent Substances 0.000 claims description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 4
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000005642 Oleic acid Substances 0.000 claims description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 3
- 235000021313 oleic acid Nutrition 0.000 claims description 3
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- MZZUATUOLXMCEY-UHFFFAOYSA-N cobalt manganese Chemical compound [Mn].[Co] MZZUATUOLXMCEY-UHFFFAOYSA-N 0.000 claims description 2
- 230000005347 demagnetization Effects 0.000 claims description 2
- 229940044949 eucalyptus oil Drugs 0.000 claims description 2
- 239000010642 eucalyptus oil Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000004006 olive oil Substances 0.000 claims description 2
- 235000008390 olive oil Nutrition 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 2
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 5
- 229910003321 CoFe Inorganic materials 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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Description
本發明涉及一種應用於光學成像領域之相機模組。The invention relates to a camera module applied in the field of optical imaging.
光圈係成像裝置之相機模組上用以控制進入成像裝置內之感光元件(如感光膠片、影像感測器等)上之進光量，該光圈之大小決定透過鏡頭進入感光元件之進光量，且光圈值越大表示進入感光元件之光線越多。惟，有些時候，如拍攝較大景深需要足夠之進光量，反而不需要光圈，因此，如何需要在有光圈與無光圈之間變換成為需要解決之技術問題。The camera module of the aperture imaging device controls the amount of light entering the photosensitive element (such as photographic film, image sensor, etc.) entering the imaging device, and the size of the aperture determines the amount of light entering the photosensitive element through the lens, and The larger the aperture value, the more light entering the photosensitive element. However, sometimes, if you take a large depth of field, you need enough light to enter, but you don't need an aperture. Therefore, how to change between aperture and no aperture becomes a technical problem that needs to be solved.
有鑒於此，有必要提供一種能在有光圈與無光圈之間變換之相機模組。In view of this, it is necessary to provide a camera module that can change between aperture and without aperture.
一種相機模組，其包括一控制單元及沿從該相機模組之物側至像側方向依次排列之一透光腔體、一感光元件及一電磁鐵組件。該腔體內充滿透明磁性流體。該電磁鐵組件包括呈圓環狀之第一電磁鐵及纏繞在該第一電磁鐵上且與該控制單元電性連接之第一線圈。該腔體包括一物側表面及一與該物側表面相對之像側表面。該磁性流體包括一透明載液及複數均勻分散在該載液內且由表面活性劑包覆之磁性奈米微粒。該控制單元籍由控制該第一線圈通電使該第一電磁鐵產生磁場以吸引該磁性奈米微粒聚集至該腔體之像側表面上並構成一光圈；該控制單元撤銷該第一線圈之電流使該第一電磁鐵產生之磁場消失時，構成該光圈之磁性奈米微粒均勻分散在該載液中。A camera module includes a control unit and a light-transmitting cavity, a photosensitive element and an electromagnet assembly arranged in sequence from the object side to the image side of the camera module. The chamber is filled with a transparent magnetic fluid. The electromagnet assembly includes a first electromagnet in an annular shape and a first coil wound on the first electromagnet and electrically connected to the control unit. The cavity includes an object side surface and an image side surface opposite the object side surface. The magnetic fluid comprises a transparent carrier liquid and a plurality of magnetic nanoparticles uniformly dispersed in the carrier liquid and coated with a surfactant. The control unit controls the first coil to energize to cause the first electromagnet to generate a magnetic field to attract the magnetic nanoparticle to concentrate on the image side surface of the cavity and constitute an aperture; the control unit cancels the first coil When the current causes the magnetic field generated by the first electromagnet to disappear, the magnetic nanoparticles constituting the aperture are uniformly dispersed in the carrier liquid.
與先前技術相比，所述相機模組將大量由表面活性劑包覆之磁性奈米微粒與透明載液構成之透明磁性流體容納在透光腔體內，籍由控制單元控制纏繞在第一電磁鐵上之第一線圈之通電與斷電，從而控制該第一電磁鐵產生磁場，進而控制該大量磁性奈米微粒構成光圈或均勻分散在該載液中，使該相機模組能在有光圈與無光圈之間變換。Compared with the prior art, the camera module accommodates a large amount of transparent magnetic fluid composed of a surfactant-coated magnetic nanoparticle and a transparent carrier liquid in a light-transmitting cavity, and is controlled by the control unit to be wound around the first electromagnetic The first coil on the iron is energized and de-energized, thereby controlling the first electromagnet to generate a magnetic field, thereby controlling the large amount of magnetic nano-particles to form an aperture or uniformly dispersed in the carrier liquid, so that the camera module can have an aperture Change between without aperture.
下面將結合附圖，對本發明作進一步的詳細說明。The invention will be further described in detail below with reference to the accompanying drawings.
請一併參閱圖1及圖2，為本發明第一實施方式提供之相機模組100。該相機模組100包括一個控制單元10及沿從該相機模組100之物側至像側方向依次排列之一個鏡頭20、一個用於承載該鏡頭20之基座30、一個透光腔體40、一個感光元件50、一個用於電性連接該感光元件50之電路板60及一電磁鐵組件70。該透光腔體40、該感光元件50、該電路板60及該電磁鐵組件70收容在該基座30內。該控制單元10電性設置在該電路板60上。Please refer to FIG. 1 and FIG. 2 together to provide a camera module 100 according to a first embodiment of the present invention. The camera module 100 includes a control unit 10 and a lens 20 arranged in sequence from the object side to the image side of the camera module 100, a base 30 for carrying the lens 20, and a light-transmissive cavity 40. A photosensitive element 50, a circuit board 60 for electrically connecting the photosensitive element 50, and an electromagnet assembly 70. The light transmissive cavity 40, the photosensitive element 50, the circuit board 60, and the electromagnet assembly 70 are housed in the susceptor 30. The control unit 10 is electrically disposed on the circuit board 60.
鏡頭20包括一個鏡筒21、一個透鏡22、一個間隔環23及一個濾光片24。該鏡筒21用於收容透鏡22、間隔環23及濾光片24。該透鏡22用於匯聚被拍攝物體反射之光線以在該感光元件50上形成影像。該間隔環23設置在透鏡22與濾光片24之間，用於在透鏡22與濾光片24之間隔開一定距離，防止二者接觸或碰撞而造成損壞。該濾光片24設置於透鏡22靠近該感光元件50之一側，用於截止某種波段之光線之通過。該基座30籍由螺紋與鏡筒21耦合，並將鏡筒21收容在內。The lens 20 includes a lens barrel 21, a lens 22, a spacer ring 23, and a filter 24. The lens barrel 21 is for housing the lens 22, the spacer ring 23, and the filter 24. The lens 22 is used to condense light reflected by the object to form an image on the photosensitive element 50. The spacer ring 23 is disposed between the lens 22 and the filter 24 for spacing a distance between the lens 22 and the filter 24 to prevent contact or collision between the two to cause damage. The filter 24 is disposed on the side of the lens 22 adjacent to the photosensitive element 50 for turning off light of a certain wavelength band. The base 30 is coupled to the lens barrel 21 by a thread and houses the lens barrel 21 therein.
該腔體40內充滿透明磁性流體41，且該腔體40包括一個物側表面42、一個與該物側表面42相對之像側表面43及一個垂直連接該物側表面42與該像側表面43之一個側壁45。優選地，該側壁45之形狀為環型。該物側表面42及該像側表面43係可透光之表面；而該側壁45之材質則以不透光材料為佳。The cavity 40 is filled with a transparent magnetic fluid 41, and the cavity 40 includes an object side surface 42, an image side surface 43 opposite to the object side surface 42, and a vertically connecting the object side surface 42 and the image side surface. One side wall 45 of 43. Preferably, the side wall 45 is in the shape of a ring. The object side surface 42 and the image side surface 43 are light transmissive surfaces; and the side wall 45 is preferably made of an opaque material.
容納在該腔體40內之磁性流體41包括大量磁性奈米微粒410及透明載液412。該磁性奈米微粒410由表面活性劑包覆，其均勻分佈在該載液412中。該磁性奈米微粒410可選用四氧化三鐵(Fe3 O4 )、錳鈷鐵氧磁體(MnFe2 O4 、CoFe2 O4 )等磁性奈米微粒，其粒徑大小優選為10~100奈米。該磁性奈米微粒410在該磁性流體41中之含量優選為1~4%。該載液412可選用水、矽油、乙醇、甲醇、環己烷或正辛烷等透明液態物質。該表面活性劑可選用聚乙烯醇、油酸、亞油酸或橄欖油等高分子材料。在本實施方式中，該載液412為水，該表面活性劑為油酸。由於磁性奈米微粒410一般由Fe3 O4 、MnFe2 O4 、CoFe2 O4 等單晶所構成，其不溶於水，因此需要在磁性奈米微粒410表面披覆上一層親水性之表面活性劑，以使磁性奈米微粒410能穩定地分散在水中。在無外加磁場下，該磁性流體41無自發性磁偶極。但當有磁場施加在該磁性流體41時，液體中之磁性奈米微粒410之磁矩會傾向沿着外加磁場方向，因而產生了磁偶極。而當外加磁場移除時，由於磁性奈米微粒410受水分子熱擾動之作用，再度呈現出零磁偶極，這現象即所謂之超順磁性(superparamagnetism)。由於水分子之熱擾動現象會加速磁性奈米微粒410安定之分散在水中，該相機模組100還可配置有加熱元件47，該加熱元件47可為電阻絲等。該加熱元件47可設置在該腔體40之側壁45內，且該加熱元件47由該控制單元10控制加熱與否。進一步說明，該加熱元件47與該控制單元10之電性連接可以籍由埋藏在該側壁45內之導線(圖未示)連接。The magnetic fluid 41 contained within the cavity 40 includes a plurality of magnetic nanoparticles 410 and a transparent carrier liquid 412. The magnetic nanoparticle 410 is coated with a surfactant which is uniformly distributed in the carrier liquid 412. The magnetic nanoparticle 410 may be selected from magnetic nanoparticles such as Fe 3 O 4 , manganese cobalt ferrite (MnFe 2 O 4 , CoFe 2 O 4 ), and the particle size thereof is preferably 10 to 100. Nano. The content of the magnetic nanoparticle 410 in the magnetic fluid 41 is preferably from 1 to 4%. The carrier liquid 412 can be selected from transparent liquid materials such as water, eucalyptus oil, ethanol, methanol, cyclohexane or n-octane. The surfactant may be selected from a polymer material such as polyvinyl alcohol, oleic acid, linoleic acid or olive oil. In the present embodiment, the carrier liquid 412 is water and the surfactant is oleic acid. Since the magnetic nanoparticle 410 is generally composed of a single crystal such as Fe 3 O 4 , MnFe 2 O 4 , or CoFe 2 O 4 , which is insoluble in water, it is necessary to coat the surface of the magnetic nanoparticle 410 with a hydrophilic surface. The active agent is such that the magnetic nanoparticle 410 can be stably dispersed in water. The magnetic fluid 41 has no spontaneous magnetic dipole in the absence of an applied magnetic field. However, when a magnetic field is applied to the magnetic fluid 41, the magnetic moment of the magnetic nanoparticles 410 in the liquid tends to follow the direction of the applied magnetic field, thereby generating a magnetic dipole. When the applied magnetic field is removed, the magnetic nanoparticle 410 is again subjected to the thermal perturbation of the water molecules, and the zero magnetic dipole is again exhibited. This phenomenon is called superparamagnetism. Since the thermal disturbance of the water molecules accelerates the dispersion of the magnetic nanoparticles 410 in the water, the camera module 100 can also be provided with a heating element 47, which can be a resistance wire or the like. The heating element 47 can be disposed within the side wall 45 of the cavity 40, and the heating element 47 is controlled by the control unit 10 for heating or not. It is further explained that the electrical connection between the heating element 47 and the control unit 10 can be connected by wires (not shown) buried in the side wall 45.
該感光元件50可為電荷耦合器件(Charge Coupled Device, CCD)感測器或互補金屬氧化物半導體(Complementary Metal-Oxide Semiconductor, CMOS)感測器等。The photosensitive element 50 can be a Charge Coupled Device (CCD) sensor or a Complementary Metal-Oxide Semiconductor (CMOS) sensor or the like.
該電磁鐵組件70包括呈圓環狀之電磁鐵71及纏繞在該電磁鐵71上之線圈73。該線圈73與該控制單元10電性連接，並由該控制單元10控制該線圈73之通電與斷電。該線圈73通電時，該電磁鐵71產生磁場；該線圈73斷電時，該電磁鐵71產生之磁場消失。進一步說明，該線圈73與該控制單元10之電性連接可以籍由埋藏在該側壁45內之導線(圖未示)連接。The electromagnet assembly 70 includes an electromagnet 71 having an annular shape and a coil 73 wound around the electromagnet 71. The coil 73 is electrically connected to the control unit 10, and the control unit 10 controls the energization and de-energization of the coil 73. When the coil 73 is energized, the electromagnet 71 generates a magnetic field; when the coil 73 is de-energized, the magnetic field generated by the electromagnet 71 disappears. It is further explained that the electrical connection between the coil 73 and the control unit 10 can be connected by wires (not shown) buried in the side wall 45.
請結合圖3，對物體進行拍攝前，從物側表面42一側入射至該腔體40內之光線，經過透明磁性流體41到達像側表面43。該控制單元10籍由控制該線圈73通電使該電磁鐵71產生磁場以吸引該磁性奈米微粒410聚集至腔體40之像側表面43上構成一光圈49。可以理解，該光圈49之形狀與該電磁鐵71之形狀相同，均呈圓環型。該控制單元10撤銷該線圈73之電流使該電磁鐵71產生之磁場消失時，構成該光圈49之磁性奈米微粒410均勻分散在該透明載液412中。該控制單元10控制該加熱元件47產生熱量以加熱磁性流體41，從而可加快磁性奈米微粒410退磁，使其更快地均勻地分散在透明載液412中。可以理解，籍由設計該控制單元10之運行程式就可以控制該加熱元件47與該線圈73之通電順序及通電時間。Referring to FIG. 3, the light incident into the cavity 40 from the object side surface 42 side before the object is photographed passes through the transparent magnetic fluid 41 to reach the image side surface 43. The control unit 10 generates an aperture 49 by controlling the energization of the coil 73 to cause the electromagnet 71 to generate a magnetic field to attract the magnetic nanoparticle 410 to the image side surface 43 of the cavity 40. It can be understood that the shape of the aperture 49 is the same as that of the electromagnet 71, and both have a ring shape. When the control unit 10 cancels the current of the coil 73 and the magnetic field generated by the electromagnet 71 disappears, the magnetic nanoparticles 410 constituting the diaphragm 49 are uniformly dispersed in the transparent carrier liquid 412. The control unit 10 controls the heating element 47 to generate heat to heat the magnetic fluid 41, thereby accelerating the demagnetization of the magnetic nanoparticle 410 to be uniformly dispersed in the transparent carrier liquid 412 more quickly. It can be understood that the power-on sequence and the energization time of the heating element 47 and the coil 73 can be controlled by designing the running program of the control unit 10.
綜上所述，對物體進行拍攝時，相機模組100具有兩種工作狀態：In summary, when shooting an object, the camera module 100 has two working states:
(a)第一狀態，參見圖3，給纏繞在該電磁鐵71上之線圈73供電，該電磁鐵71將產生一磁場，磁化分散在透明載液412中之磁性奈米微粒410，從而使該磁性奈米微粒410聚集至腔體40之像側表面43上形成該光圈49。(a) In the first state, referring to Fig. 3, the coil 73 wound around the electromagnet 71 is supplied with power, and the electromagnet 71 generates a magnetic field to magnetize the magnetic nanoparticles 410 dispersed in the transparent carrier liquid 412, thereby The magnetic nanoparticle 410 is collected on the image side surface 43 of the cavity 40 to form the aperture 49.
(b)第二狀態，參見圖2，停止給纏繞在該電磁鐵71上之線圈73供電，由於該電磁鐵71不產生磁場，所述腔體40內之磁性奈米微粒410將立即退磁，當停止給線圈73供電之時給加熱元件47供電，使加熱元件47產生熱量以加熱磁性流體41，從而可加快磁性奈米微粒410退磁，使其更快地均勻地分散在透明載液412中。(b) The second state, referring to Fig. 2, stops supplying power to the coil 73 wound around the electromagnet 71. Since the electromagnet 71 does not generate a magnetic field, the magnetic nanoparticle 410 in the cavity 40 is immediately demagnetized. The heating element 47 is energized when the supply of the coil 73 is stopped, so that the heating element 47 generates heat to heat the magnetic fluid 41, so that the magnetic nanoparticle 410 can be demagnetized to be uniformly dispersed in the transparent carrier liquid 412 more quickly.
所述相機模組100將大量由表面活性劑包覆之磁性奈米微粒410與透明載液412構成之透明磁性流體41容納在透光腔體40內，籍由控制單元10控制纏繞在電磁鐵71上之線圈73之通電與斷電，從而控制該電磁鐵71產生磁場，進而控制該大量磁性奈米微粒410構成光圈49或均勻分散在該載液412中，使該相機模組100能在有光圈49與無光圈49之間變換，具有變換光圈49之功能。The camera module 100 accommodates a large amount of the transparent magnetic fluid 41 composed of the surfactant-coated magnetic nano-particles 410 and the transparent carrier liquid 412 in the light-transmitting cavity 40, and is controlled by the control unit 10 to be wound around the electromagnet. The coil 73 is energized and de-energized to control the electromagnet 71 to generate a magnetic field, thereby controlling the large amount of magnetic nano-particles 410 to form a diaphragm 49 or uniformly dispersed in the carrier liquid 412, so that the camera module 100 can be There is a change between the aperture 49 and the non-aperture 49, and has the function of changing the aperture 49.
請參閱圖4，為本發明第二實施方式提供之相機模組100a。該相機模組100a與第一實施方式提供之相機模組100之區別在於：該相機模組100a之電磁鐵組件70a包括兩個直徑不同並呈圓環型之第一電磁鐵71a與第二電磁鐵71b及兩個分別纏繞在該第一電磁鐵71a與該第二電磁鐵71b上之第一線圈73a與第二線圈73b，該第二電磁鐵71b收容在該第一電磁鐵71a內且該第一電磁鐵71a與該第二電磁鐵71b同心設置；該相機模組100a之控制單元10a控制該第一線圈73a通電使第一電磁鐵71a產生磁場，該磁場構成一光圈49a；該控制單元控制該第二線圈73b通電使第二電磁鐵71b產生磁場，該磁場構成另一光圈49b。該光圈49b收容在該光圈49a內，且該光圈49a與該光圈49b同心設置，該光圈49a與該光圈49b構成多段光圈491。該相機模組可以變換該多段光圈491。Please refer to FIG. 4 , which illustrates a camera module 100 a according to a second embodiment of the present invention. The camera module 100a is different from the camera module 100 provided in the first embodiment in that the electromagnet assembly 70a of the camera module 100a includes two first electromagnets 71a and a second electromagnetic body having different diameters and a ring shape. An iron 71b and two first coils 73a and a second coil 73b respectively wound around the first electromagnet 71a and the second electromagnet 71b, the second electromagnet 71b being housed in the first electromagnet 71a and The first electromagnet 71a and the second electromagnet 71b are disposed concentrically; the control unit 10a of the camera module 100a controls the first coil 73a to be energized to generate a magnetic field by the first electromagnet 71a, the magnetic field forming an aperture 49a; the control unit Controlling the second coil 73b to energize causes the second electromagnet 71b to generate a magnetic field, which constitutes another aperture 49b. The aperture 49b is housed in the aperture 49a, and the aperture 49a is disposed concentrically with the aperture 49b. The aperture 49a and the aperture 49b constitute a plurality of apertures 491. The camera module can transform the multi-segment aperture 491.
請參閱圖5，為本發明第三實施方式提供之相機模組100c。該相機模組100c與第一實施方式提供之相機模組100相比，該相機模組100之電磁鐵組件70c包括兩個呈圓環型之第一電磁鐵71c與第二電磁鐵71d及分別纏繞在該第一電磁鐵71c、該第二電磁鐵71d上之第一線圈73c、第二線圈73d。該第一電磁鐵71c與第一線圈73c在該相機模組100c中之設置第一實施方式中之相機模組100之電磁鐵71與線圈73在該相機模組100中之設置相同，在此不再細述。該第二電磁鐵71d收容在該側壁45a內且與該側壁45a同心設置。Please refer to FIG. 5 , which is a camera module 100 c according to a third embodiment of the present invention. Compared with the camera module 100 provided by the first embodiment, the camera module 100c includes two first electromagnets 71c and a second electromagnet 71d in a ring shape and respectively The first coil 73c and the second coil 73d are wound around the first electromagnet 71c and the second electromagnet 71d. The first electromagnet 71c and the first coil 73c are disposed in the camera module 100c. The electromagnet 71 and the coil 73 of the camera module 100 in the first embodiment are disposed in the same manner in the camera module 100. No more details. The second electromagnet 71d is housed in the side wall 45a and is disposed concentrically with the side wall 45a.
該控制單元10a控制該第一線圈73c之通電使該第一電磁鐵71c產生磁場，此時由該磁場構成一光圈49c(如圖5中之虛線所示)。該控制單元10a控制該第二線圈73d之通電使該第二電磁鐵71d產生磁場，此時由該磁場構成一光圈49d。該光圈49c與該光圈49d直徑不同，因此，該相機模組100c可改變光圈之直徑大小。進一步說明，該第一線圈73c與該第二線圈73d不同時供電，從而該光圈49c與該光圈49d不同時出現。該相機模組100c可變換直徑不同之光圈49c與光圈49d。The control unit 10a controls the energization of the first coil 73c to cause the first electromagnet 71c to generate a magnetic field, and at this time, the magnetic field constitutes an aperture 49c (shown by a broken line in FIG. 5). The control unit 10a controls the energization of the second coil 73d to cause the second electromagnet 71d to generate a magnetic field, and at this time, the magnetic field constitutes an aperture 49d. The aperture 49c is different in diameter from the aperture 49d. Therefore, the camera module 100c can change the diameter of the aperture. Further, the first coil 73c and the second coil 73d are not supplied with power at the same time, so that the aperture 49c does not simultaneously with the aperture 49d. The camera module 100c can change the aperture 49c and the aperture 49d having different diameters.
可以理解，第二實施方式提供之電磁鐵組件70a中之第二電磁鐵71b及第二線圈73b還可以增加在第三實施方式提供之電磁鐵組件70c中，使相應之光圈不僅實現變換功能，還實現直徑可變及多段功能。It can be understood that the second electromagnet 71b and the second coil 73b of the electromagnet assembly 70a provided by the second embodiment can also be added to the electromagnet assembly 70c provided in the third embodiment, so that the corresponding aperture not only realizes the conversion function, Variable diameter and multi-segment functions are also implemented.
綜上所述，本發明符合發明專利要件，爰依法提出專利申請。惟，以上所述者僅為本發明之較佳實施方式，本發明之範圍並不以上述實施方式為限，舉凡熟悉本案技藝之人士援依本發明之精神所作之等效修飾或變化，皆應涵蓋於以下申請專利範圍內。In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.
100、100a、100c‧‧‧相機模組
10、10a、10c‧‧‧控制單元
20‧‧‧鏡頭
21‧‧‧鏡筒
22‧‧‧透鏡
23‧‧‧間隔環
24‧‧‧濾光片
30‧‧‧基座
40‧‧‧腔體
41‧‧‧磁性流體
42‧‧‧物側表面
43‧‧‧像側表面
45、45a‧‧‧側壁
47‧‧‧加熱元件
50‧‧‧感光元件
60‧‧‧電路板
73‧‧‧線圈
410‧‧‧磁性奈米微粒
412‧‧‧載液
491‧‧‧多段光圈
70、70a、70c‧‧‧電磁鐵組件
49、49a、49b、49c、49d‧‧‧光圈
71a、71c‧‧‧第一電磁鐵
71b、71d‧‧‧第二電磁鐵
73a、73c‧‧‧第一線圈
73b、73d‧‧‧第二線圈
71‧‧‧電磁鐵100, 100a, 100c‧‧‧ camera modules
10, 10a, 10c‧‧‧ control unit
20‧‧‧ lens
21‧‧‧Mirror tube
22‧‧‧ lens
23‧‧‧ spacer ring
24‧‧‧Filter
30‧‧‧Base
40‧‧‧ cavity
41‧‧‧Magnetic fluid
42‧‧‧Side side surface
43‧‧‧Image side surface
45, 45a‧‧‧ side wall
47‧‧‧ heating element
50‧‧‧Photosensitive elements
60‧‧‧ boards
73‧‧‧ coil
410‧‧‧Magnetic Nanoparticles
412‧‧‧ Carrier liquid
491‧‧‧Multiple apertures
70, 70a, 70c‧‧‧ electromagnet assembly
49, 49a, 49b, 49c, 49d‧‧ ‧ aperture
71a, 71c‧‧‧ first electromagnet
71b, 71d‧‧‧second electromagnet
73a, 73c‧‧‧ first coil
73b, 73d‧‧‧ second coil
71‧‧‧Electromagnet
圖1為本發明第一實施方式提供之一種相機模組之截面示意圖。1 is a schematic cross-sectional view of a camera module according to a first embodiment of the present invention.
圖2為圖1中相機模組之狀態示意圖。2 is a schematic view showing the state of the camera module of FIG. 1.
圖3為圖1中相機模組之另一種狀態示意圖。3 is a schematic view showing another state of the camera module of FIG. 1.
圖4為本發明第二實施方式提供之一種相機模組之截面示意圖。4 is a schematic cross-sectional view of a camera module according to a second embodiment of the present invention.
圖5為本發明第三實施方式提供之一種相機模組之截面示意圖。FIG. 5 is a schematic cross-sectional view of a camera module according to a third embodiment of the present invention.
100‧‧‧相機模組 100‧‧‧ camera module
10‧‧‧控制單元 10‧‧‧Control unit
20‧‧‧鏡頭 20‧‧‧ lens
21‧‧‧鏡筒 21‧‧‧Mirror tube
22‧‧‧透鏡 22‧‧‧ lens
23‧‧‧間隔環 23‧‧‧ spacer ring
24‧‧‧濾光片 24‧‧‧Filter
30‧‧‧基座 30‧‧‧Base
40‧‧‧腔體 40‧‧‧ cavity
41‧‧‧磁性流體 41‧‧‧Magnetic fluid
42‧‧‧物側表面 42‧‧‧Side side surface
43‧‧‧像側表面 43‧‧‧Image side surface
45‧‧‧側壁 45‧‧‧ side wall
47‧‧‧加熱元件 47‧‧‧ heating element
50‧‧‧感光元件 50‧‧‧Photosensitive elements
60‧‧‧電路板 60‧‧‧ boards
70‧‧‧電磁鐵組件 70‧‧‧Electromagnetic assembly
71‧‧‧電磁鐵 71‧‧‧Electromagnet
73‧‧‧線圈 73‧‧‧ coil
Claims (9)
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|---|---|---|---|
| TW098118292A TWI448814B (en) | 2009-06-03 | 2009-06-03 | Camera module |
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| Application Number | Priority Date | Filing Date | Title |
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| TW098118292A TWI448814B (en) | 2009-06-03 | 2009-06-03 | Camera module |
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| TW201044104A TW201044104A (en) | 2010-12-16 |
| TWI448814B true TWI448814B (en) | 2014-08-11 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002103451A1 (en) * | 2001-06-20 | 2002-12-27 | 1... Limited | Camera lens positioning using an electro-active device |
| TW200817829A (en) * | 2006-10-11 | 2008-04-16 | Hon Hai Prec Ind Co Ltd | Image pickup apparatus |
| TW200921237A (en) * | 2007-11-09 | 2009-05-16 | Hon Hai Prec Ind Co Ltd | Lens module |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002103451A1 (en) * | 2001-06-20 | 2002-12-27 | 1... Limited | Camera lens positioning using an electro-active device |
| TW200817829A (en) * | 2006-10-11 | 2008-04-16 | Hon Hai Prec Ind Co Ltd | Image pickup apparatus |
| TW200921237A (en) * | 2007-11-09 | 2009-05-16 | Hon Hai Prec Ind Co Ltd | Lens module |
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