TWI392904B - Focus assembly and projector having same - Google Patents
Focus assembly and projector having same Download PDFInfo
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- TWI392904B TWI392904B TW97135152A TW97135152A TWI392904B TW I392904 B TWI392904 B TW I392904B TW 97135152 A TW97135152 A TW 97135152A TW 97135152 A TW97135152 A TW 97135152A TW I392904 B TWI392904 B TW I392904B
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Description
本發明涉及一種調焦組合及具有該調焦組合之投影機。The invention relates to a focusing combination and a projector having the focusing combination.
隨著投影技術之發展，各種類型之投影機被廣泛應用到商務，教學，家庭影院等場合，同時，微型投影機也得到極大發展及應用，尤其是手持投影機，可像手電筒一樣單手攜帶或進行演示。目前，該投影機一般由一個投射圖像產生裝置，一個鏡頭模組及一個外殼組成。該投射圖像產生裝置及鏡頭模組均容置於該外殼內，該投射圖像產生裝置產生需要投射之圖像，並經該鏡頭模組投射出去。為使投射之圖像清晰，該鏡頭模組上經常設置一旋轉之調焦環對鏡頭模組進行調焦操作，然而通過旋轉調焦環之方式進行調焦，操作起來比較麻煩，尤其是手持投影機，幾乎很難單手完成調焦操作。With the development of projection technology, various types of projectors are widely used in business, teaching, home theater and other occasions. At the same time, micro projectors have been greatly developed and applied, especially handheld projectors, which can be carried with one hand like a flashlight. Or for a demo. Currently, the projector generally consists of a projection image generating device, a lens module and a housing. The projection image generating device and the lens module are both housed in the housing, and the projection image generating device generates an image to be projected and projects through the lens module. In order to make the projected image clear, the lens module is often provided with a rotating focus ring to perform focusing operation on the lens module. However, the focus adjustment is performed by rotating the focus ring, which is troublesome to operate, especially handheld. With the projector, it is almost impossible to perform the focusing operation with one hand.
有鑒於此，有必要提供一種調焦方便之調焦組合及具有該調焦組合之投影機。In view of this, it is necessary to provide a focusing combination that is convenient for focusing and a projector having the focusing combination.
一種調焦組合，其包括一鏡頭模組，該鏡頭模組包括一外鏡筒及一安裝於該外鏡筒內之內鏡筒，該內鏡筒內容置有一鏡頭。該外鏡筒之側壁開設有一與該鏡頭模組之光軸平行之導槽及至少一個與該鏡頭模組之光軸呈一定角度之凸輪槽。該內鏡筒具有一與該導槽嚙合之導銷，該內鏡 筒之側壁開設有凸輪槽對應之限位槽，該凸輪槽相對該光軸斜向設置。該鏡頭沿其徑嚮往外延伸出一凸輪銷，該凸輪銷穿過該限位槽與凸輪槽。該調焦組合還進一步包括一調焦按鍵，該調焦按鍵與該外鏡筒配合，當沿該鏡頭模組之軸向方向推動該調焦按鍵時，該鏡頭沿該鏡頭模組之軸向方向移動。A focus adjustment assembly includes a lens module, the lens module including an outer lens barrel and an inner lens barrel mounted in the outer lens barrel, the inner lens barrel being provided with a lens. The side wall of the outer lens barrel defines a guiding groove parallel to the optical axis of the lens module and at least one cam groove at an angle to the optical axis of the lens module. The inner lens barrel has a guide pin that meshes with the guide groove, and the inner mirror The side wall of the cylinder is provided with a limiting groove corresponding to the cam groove, and the cam groove is disposed obliquely with respect to the optical axis. The lens protrudes outwardly from a radial direction of a cam pin, and the cam pin passes through the limiting slot and the cam groove. The focusing combination further includes a focusing button, and the focusing button cooperates with the outer lens barrel, and when the focusing button is pushed along the axial direction of the lens module, the lens is along the axial direction of the lens module Move in direction.
一種投影機，其包括一鏡頭模組及一收容該鏡頭模組之外殼。該鏡頭模組包括一外鏡筒及一安裝於該外鏡筒內之內鏡筒，該內鏡筒內容置有一鏡頭。該外鏡筒之側壁開設有一與該鏡頭模組之光軸平行之導槽及至少一個與該鏡頭模組之光軸呈一定角度之凸輪槽。該內鏡筒具有一與該導槽嚙合之導銷，該內鏡筒之側壁開設有凸輪槽對應之限位槽，該凸輪槽相對該光軸斜向設置。該鏡頭沿其徑嚮往外延伸出一凸輪銷，該凸輪銷穿過該限位槽與凸輪槽。該投影機還進一步包括一調焦按鍵，該調焦按鍵與該外鏡筒配合，當沿該鏡頭模組之軸向方向推動該調焦按鍵時，該鏡頭沿該鏡頭模組之軸向方向移動。該外殼上設置有一供該鏡頭穿過之出光孔及一與該調焦按鍵對應之滑槽。該滑槽開設於外殼平行於該光軸之一個側壁，該出光孔開設於外殼垂直於該光軸之一個側壁。A projector includes a lens module and a housing for housing the lens module. The lens module includes an outer lens barrel and an inner lens barrel mounted in the outer lens barrel, and the inner lens barrel is provided with a lens. The side wall of the outer lens barrel defines a guiding groove parallel to the optical axis of the lens module and at least one cam groove at an angle to the optical axis of the lens module. The inner lens barrel has a guide pin that engages with the guide groove. The side wall of the inner lens barrel defines a limiting groove corresponding to the cam groove, and the cam groove is disposed obliquely with respect to the optical axis. The lens protrudes outwardly from a radial direction of a cam pin, and the cam pin passes through the limiting slot and the cam groove. The projector further includes a focus button, the focus button cooperates with the outer lens barrel, and when the focus button is pushed along the axial direction of the lens module, the lens is along the axial direction of the lens module mobile. The housing is provided with a light exiting hole through which the lens passes and a sliding slot corresponding to the focusing button. The sliding slot is formed on a side wall of the outer casing parallel to the optical axis, and the light exiting hole is formed in a side wall of the outer casing perpendicular to the optical axis.
與先前技術相比，本發明提供之調焦組合能夠通過推按該調焦按鍵，經過該外鏡筒及內鏡筒之傳動，使該鏡頭沿鏡頭模組之軸向移動，從而達到調焦之目的。本發明還提供了一具該調焦組合之投影機。Compared with the prior art, the focusing combination provided by the present invention can push the focusing button, and the lens is moved along the axial direction of the lens module through the driving of the outer lens barrel and the inner lens barrel to achieve focusing. The purpose. The invention also provides a projector with the focusing combination.
請參閱圖1及圖2，本發明實施方式提供之投影機100包括一投射圖像產生裝置10，一調焦組合調焦組合200及一外殼30。該調焦組合200包括一鏡頭模組20及一調焦按鍵40。該調焦組合200容置於該外殼30且固定於該投射圖像產生裝置10上。Referring to FIG. 1 and FIG. 2 , the projector 100 provided by the embodiment of the present invention includes a projected image generating device 10 , a focusing combined focusing combination 200 and a casing 30 . The focus combination 200 includes a lens module 20 and a focus button 40. The focus adjustment assembly 200 is housed in the housing 30 and is fixed to the projection image generating device 10.
請參閱圖3，該投射圖像產生裝置10固定於該外殼30內且其產生之圖像經該鏡頭模組20投射出去。該投影投射圖像產生裝置10自靠近鏡頭模組20之表面11上延伸出複數用於固定該鏡頭模組20之定位柱12。Referring to FIG. 3, the projected image generating device 10 is fixed in the outer casing 30 and the generated image is projected through the lens module 20. The projection projection image generating device 10 extends from the surface 11 of the lens module 20 to a plurality of positioning posts 12 for fixing the lens module 20.
請參閱圖4及圖5，該鏡頭模組20包括一外鏡筒210，一內鏡筒220及一鏡頭230。Referring to FIG. 4 and FIG. 5 , the lens module 20 includes an outer barrel 210 , an inner barrel 220 and a lens 230 .
該外鏡筒210於其側壁211上具有一個導槽212，均勻分佈於側壁211上之三個凸輪槽213及一第一連接部214。該導槽212與該鏡頭模組20之光軸平行，該凸輪槽213與該光軸具有一夾角，該凸輪槽213之形狀為由兩條平行邊及兩條相對之圓弧組成之類矩形，該第一連接部214用於與該調焦按鍵40配合以傳動該調焦按鍵40之動作。在本實施方式中，該第一連接部214為一自外鏡筒210之外表面向外延伸之突起。The outer lens barrel 210 has a guiding groove 212 on the side wall 211 thereof, and is evenly distributed on the three cam grooves 213 and a first connecting portion 214 on the side wall 211. The guiding groove 212 is parallel to the optical axis of the lens module 20. The cam groove 213 has an angle with the optical axis. The shape of the cam groove 213 is a rectangle composed of two parallel sides and two opposite arcs. The first connecting portion 214 is configured to cooperate with the focus button 40 to drive the focus button 40. In the embodiment, the first connecting portion 214 is a protrusion extending outward from the outer surface of the outer barrel 210.
該內鏡筒220安裝於外鏡筒210內並固定於該投射圖像產生裝置10上。該內鏡筒220具有一與該導槽212嚙合之導銷221，該導銷221能夠順著該導槽212沿該光軸方向滑動。該內鏡筒220之側壁222上開設有與該凸輪槽213 對應之限位槽223，該限位槽223之形狀為由兩條平行邊及兩條相對之圓弧組成之類矩形，該凸輪槽213沿內鏡筒220軸向之長度大於該限位槽223沿該內鏡筒220軸向之長度，且該限位槽223與該光軸具有一個夾角。該凸輪槽213自鏡頭模組20之入光方嚮往出光方向順時針延伸，而該限位槽223自入光方嚮往出光方向逆時針延伸。The inner barrel 220 is mounted in the outer barrel 210 and fixed to the projected image generating device 10. The inner lens barrel 220 has a guide pin 221 that engages with the guide groove 212. The guide pin 221 can slide along the guide groove 212 in the optical axis direction. The side wall 222 of the inner lens barrel 220 is opened with the cam groove 213 Corresponding to the limiting slot 223, the limiting slot 223 is formed by two parallel sides and two opposite arcs. The length of the cam slot 213 along the axial direction of the inner barrel 220 is greater than the limiting slot. 223 is along the axial length of the inner barrel 220, and the limiting groove 223 has an angle with the optical axis. The cam groove 213 extends clockwise from the light entering direction of the lens module 20 to the light emitting direction, and the limiting groove 223 extends counterclockwise from the light entering direction to the light emitting direction.
該內鏡筒220靠近鏡頭模組20之表面11之端面具有一固定板224，該固定板224上具有與該定位柱12對應之定位孔225，該內鏡筒220通過該固定板224固定於該投射圖像產生裝置10上。該導銷221與該內鏡筒220可為一體結構，也可為分體結構，於本市實施方式中，為組裝方便，該導銷221與該內鏡筒220為分體結構。The end surface of the lens barrel 220 adjacent to the surface 11 of the lens module 20 has a fixing plate 224. The fixing plate 224 has a positioning hole 225 corresponding to the positioning post 12, and the inner lens barrel 220 is fixed to the fixing plate 224 by the fixing plate 224. The projected image is produced on the device 10. The guide pin 221 and the inner lens barrel 220 may have a single structure or a separate structure. In the embodiment of the present invention, the guide pin 221 and the inner lens barrel 220 have a separate structure.
該鏡頭230安裝於內鏡筒220內。該鏡頭230沿其徑向向外延伸出三個凸輪銷231，該凸輪銷231穿過該凸輪槽213與限位槽223。該凸輪銷231為能夠繞其中心軸旋轉之滾輪結構，從而可減小凸輪銷231與凸輪槽213及限位槽223之間之摩擦，且該凸輪銷231之直徑等於該凸輪槽213或限位槽223之兩條平行邊之寬度，當然該凸輪槽213之兩條平行邊之寬度也可等於限位槽223之兩條平行邊之寬度，使凸輪銷231滑動時不產生振盪。當該外鏡筒210沿其軸向移動時，該凸輪銷231將隨該凸輪槽213滑動，同時，該凸輪銷231又處於限位槽223中，因此，該凸輪銷231之運動軌跡為該凸輪槽213與限位槽223形成之貫通孔之運動軌跡。根據實際需要設計該限位元槽223與該凸輪 槽213之間之夾角，可使該凸輪銷231於該光軸方向之移動幅度小於該外鏡筒210沿光軸方向之移動幅度。該凸輪銷231與該鏡頭230可為一體結構，也可為分體結構，在本實施方式中，為組裝方便，該凸輪銷231與該鏡頭230為分體結構。The lens 230 is mounted in the inner barrel 220. The lens 230 extends outwardly in the radial direction of the three cam pins 231, and the cam pins 231 pass through the cam grooves 213 and the limiting slots 223. The cam pin 231 is a roller structure that is rotatable about a central axis thereof, so that the friction between the cam pin 231 and the cam groove 213 and the limiting groove 223 can be reduced, and the diameter of the cam pin 231 is equal to the cam groove 213 or the limit. The width of the two parallel sides of the groove 223, of course, the width of the two parallel sides of the cam groove 213 may also be equal to the width of the two parallel sides of the limiting groove 223, so that the cam pin 231 does not oscillate when sliding. When the outer lens barrel 210 moves along its axial direction, the cam pin 231 will slide with the cam groove 213, and at the same time, the cam pin 231 is again in the limiting groove 223, so the movement track of the cam pin 231 is The movement path of the through hole formed by the cam groove 213 and the limiting groove 223. Designing the limit slot 223 and the cam according to actual needs The angle between the slots 213 allows the movement of the cam pin 231 in the direction of the optical axis to be smaller than the extent of movement of the outer barrel 210 in the optical axis direction. The cam pin 231 and the lens 230 may be of a unitary structure or a separate structure. In the present embodiment, the cam pin 231 and the lens 230 have a separate structure for assembly.
該外殼30用於收容該投射圖像產生裝置10及鏡頭模組20。該外殼30上設置有一供該鏡頭230穿過之出光孔31及一與該調焦按鍵40對應之滑槽32。該滑槽32開設於外殼30平行於該光軸之一個側壁，該出光孔31開設於外殼30垂直於該光軸之一個側壁。The housing 30 is for housing the projection image generating device 10 and the lens module 20. The housing 30 is provided with a light exit hole 31 through which the lens 230 passes and a sliding slot 32 corresponding to the focus button 40. The sliding slot 32 is defined in a side wall of the outer casing 30 parallel to the optical axis. The light exiting hole 31 is defined in a side wall of the outer casing 30 perpendicular to the optical axis.
請參閱圖3，該調焦按鍵40安裝於該滑槽32內，用於驅動該鏡頭模組20移動而實現調焦。該調焦按鍵40包括一本體41，一按鈕42及一第二連接部43。該本體41為一平行於該光軸之平板，其具有一個靠近第一連接部214之內表面411與遠離第一連接部214之外表面412。該按鈕42自該外表面412往遠離本體41方向延伸，該按鈕42用於供用戶推按該調焦按鍵40沿該光軸方向移動。該第二連接部43自該內表面411往遠離本體41方向延伸，用於與該第一連接部214配合。在本實施方式中，該第二連接部43為一具有一個“U”型槽之收容部，該第一連接部214收容於該“U”型槽，可以理解，該“U”型槽431為半開口槽，可方便第一連接部214之組裝。當然，也可是該第一連接部214為一沿外鏡筒之徑嚮往外延伸之收容部，該第二連接部43為一突起，該第二連接部43收容於該收容 部。而且，該第二連接部43還可為一凸銷，此時該第一連接部214可為開設於該外鏡筒210之外壁上之一與該第一連接部214配合之盲孔或通孔。Referring to FIG. 3 , the focus button 40 is mounted in the sliding slot 32 for driving the lens module 20 to achieve focusing. The focus button 40 includes a body 41, a button 42 and a second connecting portion 43. The body 41 is a flat plate parallel to the optical axis, and has an inner surface 411 adjacent to the first connecting portion 214 and an outer surface 412 away from the first connecting portion 214. The button 42 extends from the outer surface 412 away from the body 41. The button 42 is used for the user to push the focus button 40 to move along the optical axis. The second connecting portion 43 extends from the inner surface 411 away from the body 41 for mating with the first connecting portion 214. In this embodiment, the second connecting portion 43 is a receiving portion having a "U" shaped groove. The first connecting portion 214 is received in the "U" shaped groove. It can be understood that the "U" shaped groove 431 is As a semi-opening groove, the assembly of the first connecting portion 214 can be facilitated. Of course, the first connecting portion 214 is a receiving portion extending outward in the radial direction of the outer barrel, the second connecting portion 43 is a protrusion, and the second connecting portion 43 is received in the receiving portion. unit. Moreover, the second connecting portion 43 can also be a protruding pin. In this case, the first connecting portion 214 can be a blind hole or a hole that is formed on the outer wall of the outer lens barrel 210 and cooperates with the first connecting portion 214. hole.
組裝該投影機100時，首先將該鏡頭230裝設於該內鏡筒220內；其次將該內鏡筒220安裝於該外鏡筒210內；再次將該導銷221自導槽212伸入固定於內鏡筒220上，將該凸輪銷231自該凸輪槽213及限位槽223所形成之貫通孔伸入固定於鏡頭230上，使該外鏡筒210，內鏡筒220及鏡頭230組裝成一個鏡頭模組20。將該調焦按鍵40與該鏡頭模組20嚙合；再將通過該固定板224將該鏡頭模組20固定於該投射圖像產生裝置10上；最後將該投射圖像產生裝置10，鏡頭模組20及調焦按鍵40一起容置於該外殼30，且使該鏡頭模組20對準出光孔31，將該按鈕41自該32伸出到外殼30外。When the projector 100 is assembled, the lens 230 is first mounted in the inner lens barrel 220; secondly, the inner lens barrel 220 is mounted in the outer lens barrel 210; the guide pin 221 is again inserted into the guide groove 212. The lens barrel 231 is fixed to the lens 230 by the through hole formed by the cam groove 213 and the limiting groove 223, and the outer lens barrel 210, the inner tube 220 and the lens 230 are fixed. Assembled into a lens module 20. The focusing button 40 is engaged with the lens module 20; the lens module 20 is fixed to the projection image generating device 10 through the fixing plate 224; finally, the projection image generating device 10, the lens module The group 20 and the focus button 40 are accommodated in the outer casing 30, and the lens module 20 is aligned with the light exit hole 31, and the button 41 is extended from the 32 to the outside of the outer casing 30.
在本實施方式中，當需要對該投影機100調焦時，推按該按鈕42，使調焦按鍵40沿光軸方向滑動，籍由該第二連接部43與第一連接部214之傳動，使外鏡筒210沿光軸方向移動。該凸輪銷231於外鏡筒210之凸輪槽213之帶動下也將順著內鏡筒220之限位槽223滑動。該凸輪銷231還繞自身之中心軸旋轉，減少該凸輪銷231與凸輪槽213及限位槽223之間之摩擦，同時使該凸輪銷231於光軸方向之移動速度小於該外鏡筒210沿光軸方向之移動速度。從而使該凸輪銷231沿光軸方向做微小移動且伴隨著轉動，帶動該鏡頭230沿光軸方向移動，實現對該投影機100 調焦之目的。In the present embodiment, when it is necessary to focus the projector 100, the button 42 is pushed to slide the focus button 40 in the optical axis direction, and the second connecting portion 43 and the first connecting portion 214 are driven. The outer barrel 210 is moved in the optical axis direction. The cam pin 231 is also slid along the limiting groove 223 of the inner barrel 220 by the cam groove 213 of the outer barrel 210. The cam pin 231 is also rotated about its central axis to reduce the friction between the cam pin 231 and the cam groove 213 and the limiting groove 223, and the moving speed of the cam pin 231 in the optical axis direction is smaller than that of the outer barrel 210. The speed of movement along the optical axis. Therefore, the cam pin 231 is slightly moved in the optical axis direction and is rotated to drive the lens 230 to move along the optical axis direction, thereby realizing the projector 100. The purpose of focusing.
與先前技術相比，本發明提供之調焦組合能夠通過推按該調焦按鍵，經過該外鏡筒及內鏡筒之傳動，使該鏡頭沿鏡頭模組之軸向移動，從而達到調焦之目的。本發明還提供了一具該調焦組合之投影機。Compared with the prior art, the focusing combination provided by the present invention can push the focusing button, and the lens is moved along the axial direction of the lens module through the driving of the outer lens barrel and the inner lens barrel to achieve focusing. The purpose. The invention also provides a projector with the focusing combination.
綜上所述，本發明確已符合發明專利之要件，遂依法提出專利申請。惟，以上所述者僅為本發明之較佳實施方式，自不能以此限制本案之申請專利範圍。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 has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application of the present invention. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.
投影機‧‧‧100Projector ‧‧100
調焦組合‧‧‧200Focusing combination ‧‧200
投射圖像產生裝置‧‧‧10Projection image generating device ‧‧10
鏡頭模組‧‧‧20Lens module ‧‧20
外殼‧‧‧30Enclosure ‧‧30
調焦按鍵‧‧‧40Focus button ‧‧40
表面‧‧‧11Surface ‧‧11
定位柱‧‧‧12Positioning column ‧‧12
外鏡筒‧‧‧210External tube ‧‧210
內鏡筒‧‧‧220Endoscope ‧‧220
鏡頭‧‧‧230Lens ‧ ‧ 230
側壁‧‧‧211、222Side wall ‧‧‧211, 222
導槽‧‧‧212Guide slot ‧‧212
凸輪槽‧‧‧213Cam groove ‧‧ 213
第一連接部‧‧‧214First connection ‧‧‧214
導銷‧‧‧221Guide ‧ ‧ 221
限位槽‧‧‧223Limit slot ‧‧‧223
固定板‧‧‧224Fixed plate ‧‧‧224
定位孔‧‧‧225Positioning hole ‧‧225
凸輪銷‧‧‧231Cam pin ‧‧‧231
出光孔‧‧‧31Light hole ‧‧31
滑槽‧‧‧32Chute ‧‧32
本體‧‧‧41Ontology ‧‧41
按鈕‧‧‧42Button ‧‧‧42
第二連接部‧‧‧43Second connection ‧‧43
內表面‧‧‧411Inner surface ‧‧ 411
外表面‧‧‧412Outer surface ‧‧‧412
“U”型槽‧‧‧431"U" trough ‧‧‧431
圖1為本發明實施方式提供之投影機之組裝示意圖。FIG. 1 is a schematic diagram of assembly of a projector according to an embodiment of the present invention.
圖2為圖1中之投影機揭去外殼時之組裝示意圖。FIG. 2 is an assembled view of the projector of FIG. 1 with the outer casing removed.
圖3為圖1中之投影機之立體分解示意圖。3 is a perspective exploded view of the projector of FIG. 1.
圖4為圖1中之投影機之鏡頭模組之組裝示意圖。4 is a schematic view showing the assembly of the lens module of the projector of FIG. 1.
圖5為圖1中之投影機之鏡頭模組之分解示意圖。FIG. 5 is an exploded perspective view of the lens module of the projector of FIG. 1. FIG.
投影機‧‧‧100Projector ‧‧100
投射圖像產生裝置‧‧‧10Projection image generating device ‧‧10
鏡頭模組‧‧‧20Lens module ‧‧20
外殼‧‧‧30Enclosure ‧‧30
調焦按鍵‧‧‧40Focus button ‧‧40
表面‧‧‧11Surface ‧‧11
定位柱‧‧‧12Positioning column ‧‧12
外鏡筒‧‧‧210External tube ‧‧210
內鏡筒‧‧‧220Endoscope ‧‧220
鏡頭‧‧‧230Lens ‧ ‧ 230
第一連接部‧‧‧214First connection ‧‧‧214
固定板‧‧‧224Fixed plate ‧‧‧224
定位孔‧‧‧225Positioning hole ‧‧225
出光孔‧‧‧31Light hole ‧‧31
滑槽‧‧‧32Chute ‧‧32
本體‧‧‧41Ontology ‧‧41
按鈕‧‧‧42Button ‧‧‧42
第二連接部‧‧‧43Second connection ‧‧43
內表面‧‧‧411Inner surface ‧‧ 411
外表面‧‧‧412Outer surface ‧‧‧412
“U”型槽‧‧‧431"U" trough ‧‧‧431
Claims (11)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW97135152A TWI392904B (en) | 2008-09-12 | 2008-09-12 | Focus assembly and projector having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW97135152A TWI392904B (en) | 2008-09-12 | 2008-09-12 | Focus assembly and projector having same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201011366A TW201011366A (en) | 2010-03-16 |
| TWI392904B true TWI392904B (en) | 2013-04-11 |
Family
ID=44828585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW97135152A TWI392904B (en) | 2008-09-12 | 2008-09-12 | Focus assembly and projector having same |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI392904B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM403038U (en) | 2010-11-19 | 2011-05-01 | Young Optics Inc | Lens module and projection device using the same |
| TWI505065B (en) * | 2012-08-31 | 2015-10-21 | Sintai Optical Shenzhen Co Ltd | Electronic device |
| CN107577047B (en) * | 2017-05-27 | 2020-12-29 | 深圳多哚新技术有限责任公司 | Virtual reality equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285322A (en) * | 1992-09-08 | 1994-02-08 | Eastman Kodak Company | Mechanisms for mounting cam barrels |
| US6204977B1 (en) * | 1998-09-09 | 2001-03-20 | Olympus Optical Co., Ltd. | Lens barrel |
| CN1721900A (en) * | 2004-07-05 | 2006-01-18 | 鸿富锦精密工业（深圳）有限公司 | Digital camera lens module and assemble method thereof |
| CN1847899A (en) * | 2005-04-12 | 2006-10-18 | 亚洲光学股份有限公司 | Barrel combination with cam mechanism and lens combination |
| TWM318729U (en) * | 2007-03-23 | 2007-09-11 | Asia Optical Co Inc | Lens structure with focus restriction |
-
2008
- 2008-09-12 TW TW97135152A patent/TWI392904B/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5285322A (en) * | 1992-09-08 | 1994-02-08 | Eastman Kodak Company | Mechanisms for mounting cam barrels |
| US6204977B1 (en) * | 1998-09-09 | 2001-03-20 | Olympus Optical Co., Ltd. | Lens barrel |
| CN1721900A (en) * | 2004-07-05 | 2006-01-18 | 鸿富锦精密工业（深圳）有限公司 | Digital camera lens module and assemble method thereof |
| CN1847899A (en) * | 2005-04-12 | 2006-10-18 | 亚洲光学股份有限公司 | Barrel combination with cam mechanism and lens combination |
| TWM318729U (en) * | 2007-03-23 | 2007-09-11 | Asia Optical Co Inc | Lens structure with focus restriction |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201011366A (en) | 2010-03-16 |
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| MM4A | Annulment or lapse of patent due to non-payment of fees |