TW201430433A - Structure of the lens - Google Patents
Structure of the lens Download PDFInfo
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- TW201430433A TW201430433A TW102104110A TW102104110A TW201430433A TW 201430433 A TW201430433 A TW 201430433A TW 102104110 A TW102104110 A TW 102104110A TW 102104110 A TW102104110 A TW 102104110A TW 201430433 A TW201430433 A TW 201430433A
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- lens barrel
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- Lens Barrels (AREA)
- Projection Apparatus (AREA)
Abstract
Description
本發明涉及一種鏡頭結構，尤其涉及一種投影鏡頭，可避免使用初期霧氣產生的鏡頭結構。The invention relates to a lens structure, in particular to a projection lens, which can avoid the lens structure generated by using the initial fog.
投影機所使用的投影鏡頭通常包括二群鏡片，該二群鏡片分別組裝在鏡筒內，通過二鏡筒的組合構成該投影鏡頭。目前該投影鏡頭二鏡筒的組合是以螺絲直接鎖固的方式進行連接，該二鏡筒連接後在二鏡筒之間形成一閉合的空間，當該投影鏡頭配合投影機的光機光源進行影像投影運作時，由於光源所產生的高熱可超過攝氏八十度，投影機內部的溫度也會迅速提高，越靠近光源的位置溫度越高，而該投影鏡頭是以後群鏡片靠近光源，因此，該投影鏡頭的溫度也是由後群鏡片逐漸傳導至前群鏡片。該投影鏡頭在溫度傳導的過程中，會造成二鏡筒之間閉合空間中的氣體有前冷後熱的現象，這個現象導至相對溫度較低的前群鏡片的最後一片鏡片表面產生霧氣，該鏡片上的霧氣會使投影的影像變得模糊，需要等到前群鏡片溫度與後群鏡片溫度相同時霧氣才會消失，造成投影機使用初期會有一段模糊時間(約五分鐘)，形成使用上的不便而影響投影機品質。如何解決該投影鏡頭使用初期的起霧現象，在該投影鏡頭結構設計上應持續予以研究改善。The projection lens used in the projector usually includes two groups of lenses, which are respectively assembled in the lens barrel, and the projection lens is constituted by a combination of two barrels. At present, the combination of the two lens barrels of the projection lens is directly connected by screws, and the two barrels are connected to form a closed space between the two barrels, when the projection lens is matched with the light source of the projector. When the image projection operation, because the high heat generated by the light source can exceed 80 degrees Celsius, the temperature inside the projector will also increase rapidly. The temperature closer to the light source is higher, and the projection lens is the group lens closer to the light source. Therefore, The temperature of the projection lens is also gradually transmitted from the rear group lens to the front group lens. In the process of temperature conduction, the projection lens causes the gas in the closed space between the two barrels to be heated before being cold, and this phenomenon leads to fogging on the surface of the last lens of the front group lens with relatively low temperature. The fog on the lens will blur the projected image, and the fog will disappear when the temperature of the front lens is the same as the temperature of the rear lens, which will cause a fuzzy time (about five minutes) in the initial use of the projector. The inconvenience affects the quality of the projector. How to solve the fogging phenomenon in the initial stage of the projection lens, the design of the projection lens should be continuously studied and improved.
有鑑於此，有必要提供一種可防止在組合鏡筒間的鏡片上產生霧氣的鏡頭結構。In view of the above, it is necessary to provide a lens structure that prevents fog from being generated on the lenses between the combined barrels.
本發明提供一種鏡頭結構，其包括一第一鏡筒以及一第二鏡筒，該第一鏡筒相對該第二鏡筒具有一承接面，該第二鏡筒相對該第一鏡筒具有一接合面，該承接面的表面上具有至少一凹槽，該凹槽在該承接面與該接合面組合時，構成在該第一鏡筒與該第二鏡筒之間具有的通氣孔。The present invention provides a lens structure including a first lens barrel and a second lens barrel. The first lens barrel has a receiving surface opposite to the second lens barrel, and the second lens barrel has a receiving surface opposite to the first lens barrel. The joint surface has at least one groove on the surface thereof, and the groove forms a vent hole between the first barrel and the second barrel when the receiving surface is combined with the joint surface.
相較現有技術，本發明鏡頭結構，通過該第一鏡筒在該承接面的表面上具有該凹槽設置，從而使得該第一鏡筒與該第二鏡筒組合時，該凹槽構成在該第一鏡筒及該第二鏡筒之間的通氣孔，可快速排除在該第一鏡筒與該第二鏡筒間產生的霧氣，有效解決鏡頭使用初期發生模糊不清的情況，提高該鏡頭的品質。Compared with the prior art, the lens structure of the present invention has the groove arrangement on the surface of the receiving surface through the first lens barrel, so that when the first lens barrel is combined with the second lens barrel, the groove is formed in The vent hole between the first lens barrel and the second lens barrel can quickly eliminate the mist generated between the first lens barrel and the second lens barrel, thereby effectively solving the problem that the lens is blurred at the initial stage of use, and improving The quality of the lens.
10．．．鏡頭10. . . Lens
12．．．第一鏡筒12. . . First barrel
120．．．第一筒孔120. . . First cylinder hole
1200．．．最後鏡片1200. . . Last lens
1202．．．第一群鏡片1202. . . First group of lenses
122．．．投射端122. . . Projection end
124．．．承載端124. . . Bearer
126．．．承接面126. . . Receiving surface
1262．．．定位座1262. . . Positioning seat
1264．．．凹槽1264. . . Groove
1266、1444．．．螺孔1266, 1444. . . Screw hole
14．．．第二鏡筒14. . . Second barrel
140．．．第二筒孔140. . . Second cylinder hole
1400．．．最前鏡片1400. . . Front lens
1402．．．第二群鏡片1402. . . Second group of lenses
142．．．接收端142. . . Receiving end
144．．．接合端144. . . Joint end
1440．．．氣孔1440. . . Stomata
1442．．．凸環1442. . . Convex ring
1446．．．接合面1446. . . Joint surface
16．．．固定螺絲16. . . Fixing screw
圖1是本發明鏡頭結構的實施例示意圖。1 is a schematic view of an embodiment of a lens structure of the present invention.
圖2是圖1的鏡頭結構的第一鏡筒示意圖。2 is a schematic view of a first lens barrel of the lens structure of FIG. 1.
圖3是圖1的鏡頭結構的組合剖視圖。3 is a combined cross-sectional view of the lens structure of FIG. 1.
下面將結合附圖對本發明作一具體介紹。The present invention will be specifically described below with reference to the accompanying drawings.
請參閱圖1，為本發明鏡頭結構的實施例示意圖。該鏡頭10包括一第一鏡筒12以及一第二鏡筒14，該第一鏡筒12與該第二鏡筒14相對組合構成該鏡頭10。該第一鏡筒12具有一投射端122以及一承載端124，該投射端122與該承載端124分別位於該第一鏡筒12的兩端，該投射端122用以將影像光束投射出去，該承載端124用以組合該第二鏡筒14。該第二鏡筒14具有一接收端142以及一接合端144，該接收端142與該接合端144分別位於該第二鏡筒14的兩端，該接收端142用以接收光源的影像光束並導引朝向該第一鏡筒12，該接合端144用以連接該第一鏡筒12，該第一鏡筒12與該第二鏡筒14組合後具有同一光軸。Please refer to FIG. 1 , which is a schematic diagram of an embodiment of a lens structure of the present invention. The lens 10 includes a first barrel 12 and a second barrel 14. The first barrel 12 and the second barrel 14 are combined to form the lens 10. The first lens barrel 12 has a projection end 122 and a bearing end 124. The projection end 122 and the carrying end 124 are respectively located at two ends of the first lens barrel 12, and the projection end 122 is used for projecting an image beam. The carrying end 124 is used to combine the second barrel 14. The second lens barrel 14 has a receiving end 142 and an engaging end 144. The receiving end 142 and the engaging end 144 are respectively located at two ends of the second lens barrel 14. The receiving end 142 is configured to receive an image beam of the light source. The guiding end 144 is for guiding the first lens barrel 12, and the first lens barrel 12 and the second lens barrel 14 are combined to have the same optical axis.
請再參閱圖2，為本發明鏡頭結構的第一鏡筒示意圖。該第一鏡筒12的中央是為一第一筒孔120，該第一筒孔120內設置第一群鏡片1202 (如圖3所示) ，該第一群鏡片1202具有一光軸 。該第一鏡筒12的該承載端124相對該第二鏡筒14設置一承接面126，該承接面126的表面上凹陷具有一定位座1262，該定位座1262是為環狀座體並環繞該第一筒孔120。該定位座1262的底表面上具有至少一凹槽1264以及至少一螺孔1266設置，該凹槽1264是由該第一筒孔120處向外緣延伸到達該定位座1262的外環壁，該凹槽1264與該螺孔1266以交錯方式排列設置。本實施例中，該凹槽1264與該螺孔1266以等角交錯的方式排列在該定位座1262環形的底表面上。該第一鏡筒12是為金屬材質鏡筒，用以連接同為金屬材質的該第二鏡筒14。該第二鏡筒14的中央同樣是為一第二筒孔140，該第二筒孔140用以設置第二群鏡片1402，該第二群鏡片1402具有一光軸。該第二鏡筒14的該接合端144的端部具有一凸環1442設置，該凸環1442上設置至少一螺孔1444，該螺孔1444貫穿該凸環1442，該凸環1442相對該第一鏡筒12具有一接合面1446設置。Please refer to FIG. 2 again, which is a schematic view of the first lens barrel of the lens structure of the present invention. The center of the first barrel 12 is a first barrel 120. The first barrel 120 is provided with a first group of lenses 1202 (shown in FIG. 3). The first group of lenses 1202 has an optical axis. The bearing end 124 of the first lens barrel 12 is disposed with a receiving surface 126 opposite to the second lens barrel 14. The surface of the receiving surface 126 is recessed to have a positioning seat 1262. The positioning seat 1262 is a ring-shaped seat and surrounds. The first cylindrical hole 120. The bottom surface of the positioning seat 1262 has at least one groove 1264 and at least one screw hole 1266. The groove 1264 extends from the outer edge of the first cylindrical hole 120 to the outer ring wall of the positioning seat 1262. The groove 1264 and the screw hole 1266 are arranged in a staggered manner. In this embodiment, the groove 1264 and the screw hole 1266 are arranged in an equiangular manner on the annular bottom surface of the positioning seat 1262. The first lens barrel 12 is a metal lens barrel for connecting the second lens barrel 14 of the same metal material. The center of the second lens barrel 14 is also a second cylindrical hole 140 for providing a second group of lenses 1402. The second group of lenses 1402 has an optical axis. The end of the engaging end 144 of the second lens barrel 14 has a convex ring 1442. The convex ring 1442 is provided with at least one screw hole 1444. The screw hole 1444 extends through the convex ring 1442. The convex ring 1442 is opposite to the first ring. A barrel 12 has an engagement surface 1446 disposed.
該第一鏡筒12與該第二鏡筒14的組合，通過該第一鏡筒12的該定位座1262與該第二鏡筒14的該凸環1442進行相對連接。該定位座1262凹陷的環狀座體提供該凸環1442嵌合，使該第一鏡筒12內的該第一群鏡片1202的光軸對正該第二鏡筒14內的第二群鏡片1402的光軸。再通過固定螺絲16自該凸環1442上的該螺孔1444鎖固於該定位座1262的該螺孔1266完成該第一鏡筒12與該第二鏡筒14組合的穩固。該第一鏡筒12與該第二鏡筒14組合後，該凸環1442的該接合面1446緊貼於該定位座1262的底表面，從而使該第一鏡筒12內該第一群鏡片1202排列在最後的鏡片1200(鄰近該承載端124)與該第二鏡筒14內該第二群鏡片1402排列在最前的鏡片1400(鄰近該接合端144)之間形成一閉合空間。該閉合空間內的氣體在前後相對溫差大時，若沒有適時排出於該鏡頭10之外，就會產生霧氣形成在該第一群鏡片1202排列在最後的鏡片1200上，影響該鏡頭10使用初期的投影效能。本實施例，該定位座1262底表面上設置的該凹槽1264，在該凸環1442的該接合面1446緊貼時，能在接合處形成更多的間隙，使該第二鏡筒14的該接收端142受光源溫度影響而增溫時，該第二群鏡片1402排列在最前的鏡片1400附近的氣體溫度隨著增高升溫，增溫的氣體就會循著該凹槽1264在接合處形成的間隙向該鏡頭10外排出，避免該第二群鏡片1402最前的鏡片1400與該第一群鏡片1202最後的鏡片1200之間前後氣體的溫差過大而形成的霧氣，從而該鏡頭10在使用初期就不會有模糊現象，可有效提升該鏡頭10的品質。The combination of the first barrel 12 and the second barrel 14 is connected to the convex ring 1442 of the second barrel 14 through the positioning seat 1262 of the first barrel 12. The annular seat body recessed by the positioning seat 1262 provides the convex ring 1442 to be fitted, so that the optical axis of the first group lens 1202 in the first lens barrel 12 is aligned with the second group lens in the second lens barrel 14. The optical axis of the 1402. The screw hole 1266 of the positioning seat 1262 is locked to the screw hole 1266 of the positioning seat 1262 by the fixing screw 16 to complete the stability of the combination of the first lens barrel 12 and the second lens barrel 14. After the first lens barrel 12 is combined with the second lens barrel 14, the joint surface 1446 of the convex ring 1442 is in close contact with the bottom surface of the positioning seat 1262, so that the first group of lenses in the first lens barrel 12 1202 is arranged between the last lens 1200 (adjacent to the carrier end 124) and the second lens barrel 14 in the second lens barrel 14 to form a closed space between the frontmost lens 1400 (adjacent to the engagement end 144). When the gas in the closed space is large in the front-rear relative temperature difference, if it is not properly discharged outside the lens 10, mist is generated on the lens 1200 in which the first group lens 1202 is arranged, which affects the initial use of the lens 10. Projection performance. In this embodiment, the groove 1264 disposed on the bottom surface of the positioning seat 1262 can form more gaps at the joint when the engaging surface 1446 of the convex ring 1442 is in close contact with the second lens barrel 14 When the receiving end 142 is heated by the temperature of the light source, the temperature of the gas arranged in the vicinity of the foremost lens 1400 of the second group lens 1402 increases with increasing temperature, and the warmed gas follows the groove 1264 at the joint. The gap is discharged to the outside of the lens 10 to avoid the mist formed by the excessive temperature difference between the front lens 1400 of the second group lens 1402 and the last lens 1200 of the first group lens 1202, so that the lens 10 is in use at an early stage. There will be no blurring, which can effectively improve the quality of the lens 10.
本發明鏡頭結構進一步包括在該凸環1442上設置至少一氣孔1440(如圖3中虛線所標示)，該氣孔1440貫穿該凸環1442，該氣孔1440與該凸環1442上的該螺孔1444交錯設置。該氣孔1440同樣能在該接合面1446緊貼該定位座1262底表面的接合處形成間隙，用以通過該氣孔1440間隙進行高溫氣體的排除，避免霧氣的產生。該氣孔1440設置位置與該凹槽1264相對時，可以在接合處直接形成排氣孔具有更佳的排氣效果，能徹底解決該鏡頭10初期使用的霧氣問題。The lens structure of the present invention further includes at least one air hole 1440 (as indicated by a broken line in FIG. 3) disposed on the convex ring 1442. The air hole 1440 extends through the convex ring 1442, and the air hole 1440 and the screw hole 1444 on the convex ring 1442 Interlaced settings. The air hole 1440 can also form a gap at the joint of the joint surface 1446 against the bottom surface of the positioning seat 1262 for removing the high temperature gas through the gap of the air hole 1440 to prevent the generation of mist. When the air hole 1440 is disposed at a position opposite to the groove 1264, the vent hole can be directly formed at the joint portion to have a better exhaust effect, and the fog problem initially used in the lens 10 can be completely solved.
本發明的鏡頭結構，該第一鏡筒12以及該第二鏡筒14在組合的接合處，通過該凹槽1264或是該氣孔1440的設置，縮減貼合面的面積以增加貼合處的間隙，使該第一鏡筒12與該第二鏡筒14之間受熱氣體容易排出於該鏡頭10外，避免因溫差產生的霧氣問題，有效解決目前投影鏡頭初期使用出現的模糊現象，提高該鏡頭10良好的影像輸出品質。In the lens structure of the present invention, the first lens barrel 12 and the second lens barrel 14 are reduced in the combined joint by the groove 1264 or the air hole 1440 to reduce the area of the bonding surface to increase the fit. The gap allows the heated gas between the first barrel 12 and the second barrel 14 to be easily discharged outside the lens 10, thereby avoiding the fog problem caused by the temperature difference, effectively solving the blur phenomenon occurring in the initial use of the projection lens, and improving the The lens 10 has good image output quality.
應該指出，上述實施例僅為本發明的較佳實施例，本領域技術人員還可在本發明精神內做其他變化。這些依據本發明精神所做的變化，都應包含在本發明所要求保護的範圍之內。It should be noted that the above-described embodiments are merely preferred embodiments of the present invention, and those skilled in the art can make other changes within the spirit of the present invention. All changes made in accordance with the spirit of the invention are intended to be included within the scope of the invention.
10．．．鏡頭10. . . Lens
12．．．第一鏡筒12. . . First barrel
120．．．第一筒孔120. . . First cylinder hole
1200．．．最後鏡片1200. . . Last lens
1202．．．第一群鏡片1202. . . First group of lenses
122．．．投射端122. . . Projection end
124．．．承載端124. . . Bearer
126．．．承接面126. . . Receiving surface
1262．．．定位座1262. . . Positioning seat
1264．．．凹槽1264. . . Groove
1266、1444．．．螺孔1266, 1444. . . Screw hole
14．．．第二鏡筒14. . . Second barrel
140．．．第二筒孔140. . . Second cylinder hole
1400．．．最前鏡片1400. . . Front lens
1402．．．第二群鏡片1402. . . Second group of lenses
142．．．接收端142. . . Receiving end
144．．．接合端144. . . Joint end
1440．．．氣孔1440. . . Stomata
1442．．．凸環1442. . . Convex ring
1446．．．接合面1446. . . Joint surface
16．．．固定螺絲16. . . Fixing screw
Claims (12)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310028644.7A CN103969782A (en) | 2013-01-25 | 2013-01-25 | Lens structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201430433A true TW201430433A (en) | 2014-08-01 |
Family
ID=51239491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW102104110A TW201430433A (en) | 2013-01-25 | 2013-02-04 | Structure of the lens |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2014146026A (en) |
| CN (1) | CN103969782A (en) |
| TW (1) | TW201430433A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10859784B2 (en) | 2017-02-06 | 2020-12-08 | Lite-On Electronics (Guangzhou) Limited | Optical assembly and camera module |
| TWI712829B (en) * | 2017-08-25 | 2020-12-11 | 揚明光學股份有限公司 | Optical lens |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589617B (en) * | 2017-09-29 | 2020-10-20 | 维沃移动通信有限公司 | Camera and mobile terminal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1279984A4 (en) * | 2000-03-31 | 2004-11-24 | Nikon Corp | Method and device for holding optical member, optical device, exposure apparatus, and device manufacturing method |
| CN2927086Y (en) * | 2006-07-11 | 2007-07-25 | 普立尔科技股份有限公司 | Lens and core-adjusting structure |
| CN100561274C (en) * | 2006-09-22 | 2009-11-18 | 鸿富锦精密工业（深圳）有限公司 | The camera lens module of camera module and application thereof |
| JP2011090058A (en) * | 2009-10-20 | 2011-05-06 | Fujifilm Corp | Lens device, and projector using the same |
-
2013
- 2013-01-25 CN CN201310028644.7A patent/CN103969782A/en active Pending
- 2013-02-04 TW TW102104110A patent/TW201430433A/en unknown
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2014
- 2014-01-21 JP JP2014008430A patent/JP2014146026A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10859784B2 (en) | 2017-02-06 | 2020-12-08 | Lite-On Electronics (Guangzhou) Limited | Optical assembly and camera module |
| TWI712829B (en) * | 2017-08-25 | 2020-12-11 | 揚明光學股份有限公司 | Optical lens |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014146026A (en) | 2014-08-14 |
| CN103969782A (en) | 2014-08-06 |
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