TWI432775B - Light guide structure - Google Patents
Light guide structure Download PDFInfo
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- TWI432775B TWI432775B TW98146319A TW98146319A TWI432775B TW I432775 B TWI432775 B TW I432775B TW 98146319 A TW98146319 A TW 98146319A TW 98146319 A TW98146319 A TW 98146319A TW I432775 B TWI432775 B TW I432775B
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- lens barrel
- image sensor
- guiding structure
- circuit board
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Description
本發明是有關於一種導光結構，特別是有關於一種應用於內視鏡的導光結構。 The present invention relates to a light guiding structure, and more particularly to a light guiding structure applied to an endoscope.
目前，習知之導光結構應用於內視鏡之結構順序依序為：影像感測器、鏡頭筒(其內部係設有光學鏡片)及導(遮)光罩。其中，導光罩、鏡頭筒及影像感測器係依序組裝在一起。惟習知之內視鏡於組裝導光罩時，由於組件過多，不僅徒增組裝人員之組裝工序，若組裝人員組裝不當，鏡頭的視角即遭阻擋；再者，此導光結構主要由導光罩及鏡頭二項分件所組成，更提高製造及倉儲成本；另外，於習知之導光結構內部，影像感測器及光學鏡片之間，尚設有一抗紅外線玻璃，藉以避免紅外線抵達影像感測器，進而干擾鏡頭所擷取的影像，且於導光罩頂面內緣處更設有一保護玻璃以保護及隔離鏡頭筒內的光學鏡片及影像感測器與外界環境，換言之，此種結構設計藉由許多光學元件達到保護鏡頭或提高影像的擷取效果的目的，但是過多的光學元件，反而增加光線進入鏡頭前的干擾，造成光線的穿透率降低許多。 At present, the structure of the conventional light guiding structure applied to the endoscope is sequentially: the image sensor, the lens barrel (with the optical lens inside) and the guiding (masking) mask. The light guide, the lens barrel and the image sensor are assembled in sequence. However, when the conventional endoscope is assembled with the light guide, due to too many components, the assembly process of the assembler is not increased, and if the assembler is improperly assembled, the angle of view of the lens is blocked; further, the light guide structure is mainly guided by light. The cover and the lens are composed of two parts, which further increases the manufacturing and storage costs. In addition, inside the light guide structure, there is an anti-infrared glass between the image sensor and the optical lens to avoid infrared rays reaching the image. The detector further interferes with the image captured by the lens, and a protective glass is disposed on the inner edge of the top surface of the light guide to protect and isolate the optical lens and the image sensor in the lens barrel from the external environment, in other words, The structural design achieves the purpose of protecting the lens or improving the image capturing effect by many optical components, but excessive optical components increase the interference of light into the lens, resulting in a much lower transmittance of light.
有鑑於上述先前技術之問題，本發明之目的就是在提供一種導光 結構，其係以一體成型之導光罩及鏡頭筒搭配減少使用及製造光學元件之數量，不僅可提升光線穿透率，又可簡化組裝工序，且有效解決組裝不當及阻擋視角等問題，並能進一步降低生產成本。 In view of the above prior art problems, the object of the present invention is to provide a light guide The structure, which is integrated with the light guide and the lens barrel, reduces the number of optical components used and manufactured, not only improves the light transmittance, but also simplifies the assembly process, and effectively solves problems such as improper assembly and blocking viewing angle, and Can further reduce production costs.
根據本發明之目的，係提供一種導光結構，包括一鏡頭筒及一複合玻璃。其中，鏡頭筒之一端之筒徑較另一端之筒徑小，故鏡頭筒之一端即形成一遮光結構，鏡頭筒內設有複數個光學鏡片而形成一光路，導引所欲觀察之一物體之一反射光線。複合玻璃則於其表面設有一抗紅外線塗層，設於鏡頭筒一端之頂面內緣處，以隔離鏡頭筒與外界環境並過濾紅外光。 In accordance with the purpose of the present invention, a light directing structure is provided that includes a lens barrel and a composite glass. Wherein, the diameter of one end of the lens barrel is smaller than the diameter of the other end, so that one end of the lens barrel forms a light-shielding structure, and a plurality of optical lenses are arranged in the lens barrel to form an optical path for guiding an object to be observed. One reflects light. The composite glass is provided with an anti-infrared coating on the surface thereof, and is disposed at the inner edge of the top surface of one end of the lens barrel to isolate the lens barrel from the external environment and filter the infrared light.
承上所述，依本發明之導光結構，其可具有一或多個下述優點： In view of the above, the light guiding structure according to the present invention may have one or more of the following advantages:
(1)鏡頭筒及其所包含的遮光結構以一體成型的模式製造，可減少組裝人員之組裝工序，避免組裝導光罩與鏡頭筒不當而造成阻擋視角的風險，並降低成本。 (1) The lens barrel and the light-shielding structure contained therein are manufactured in an integrated molding mode, which can reduce the assembly process of the assembler, avoid the risk of blocking the viewing angle by assembling the light guide cover and the lens barrel, and reduce the cost.
(2)僅於鏡頭筒內部設有一片複合玻璃，減少光學元件之使用及製造，進而提升光線穿透率，並降低成本。 (2) Only one composite glass is provided inside the lens barrel to reduce the use and manufacture of optical components, thereby increasing the light transmittance and reducing the cost.
(3)鏡頭筒及所包含之遮光結構成一體成型狀可減低習知導(遮)光罩的高度。 (3) The lens barrel and the light-shielding structure included therein can be integrally formed to reduce the height of the conventional guide (mask) mask.
1‧‧‧導光結構 1‧‧‧Light guiding structure
10‧‧‧鏡頭筒 10‧‧‧ lens barrel
100‧‧‧光學鏡片 100‧‧‧Optical lenses
101‧‧‧容置空間 101‧‧‧ accommodating space
11‧‧‧複合玻璃 11‧‧‧Composite glass
12‧‧‧影像感測器載板 12‧‧‧Image Sensor Carrier
13‧‧‧影像感測器 13‧‧‧Image sensor
130‧‧‧封膠 130‧‧‧Packing
14‧‧‧電路板(PCB) 14‧‧‧Circuit Board (PCB)
15‧‧‧發光源 15‧‧‧Light source
16‧‧‧支架 16‧‧‧ bracket
2‧‧‧物體 2‧‧‧ objects
20‧‧‧反射光線 20‧‧‧Reflected light
第1圖 係為本發明之導光結構之剖面示意圖；第2圖 係為本發明之鏡頭筒及複合玻璃之剖面示意圖；以及第3圖 係為本發明之導光結構之立體結構實施例示意圖。 1 is a schematic cross-sectional view of a light guiding structure of the present invention; FIG. 2 is a schematic cross-sectional view of a lens barrel and a composite glass according to the present invention; and FIG. 3 is a schematic view showing a three-dimensional structure of the light guiding structure of the present invention. .
請參閱第1圖，其係為本發明之導光結構之剖面示意圖。如圖所示，本發明之改良導光結構1結構係包含一鏡頭筒10及一複合玻璃11。鏡頭筒10於其一端之筒徑較其另一端之筒徑小，此一端即成為一遮光結構，其即為習知之導(遮)光罩的部分，但於本發明中即以鏡頭筒10之小筒徑端作為此等結構。鏡頭筒10內設有複數個光學鏡片100而形成一光路，導引所欲觀察之一物體2之一反射光線20。複合玻璃11則於其一面設有一抗紅外線塗層，且設於鏡頭筒10一端之內緣處，如第2圖所示，複合玻璃11設於鏡頭筒10頂面內緣處之一容置空間101。複合玻璃11係以點膠黏合之方式，與鏡頭筒10連接固定，以隔離鏡頭筒11與外界環境並過濾紅外光。 Please refer to FIG. 1 , which is a schematic cross-sectional view of a light guiding structure of the present invention. As shown, the improved light guiding structure 1 structure of the present invention comprises a lens barrel 10 and a composite glass 11. The lens barrel 10 has a smaller diameter than the tube diameter of the other end, and this end becomes a light-shielding structure, which is a part of a conventional guide (mask) reticle, but in the present invention, the lens barrel 10 is used. The small diameter end is used as such a structure. A plurality of optical lenses 100 are disposed in the lens barrel 10 to form an optical path for guiding one of the objects 2 to be observed to reflect the light 20. The composite glass 11 is provided with an anti-infrared coating on one side thereof and is disposed at the inner edge of one end of the lens barrel 10. As shown in FIG. 2, the composite glass 11 is disposed at one of the inner edges of the top surface of the lens barrel 10. Space 101. The composite glass 11 is attached to the lens barrel 10 in a manner of adhesive bonding to isolate the lens barrel 11 from the external environment and filter infrared light.
另外，本發明之導光結構更包含一影像感測器載板12，一影像感測器13、一電路板14、至少一發光源15以及至少一支架16。其中，影像感測器13係放置於影像感測器載板12之上，鏡頭筒10另一端之內側再以筒壁搭接影像感測器13後，以封膠130密封以隔絕影像感測器13與外界環境，如此鏡頭筒10便可固定由光學鏡片100到影像感測器13之間的距離，而不會受到影像感測器載板12與鏡頭筒10之間可能會產生的一些形狀變化或位移，使焦距產生變化。鏡頭筒10內設有的光學鏡片100形成一光路，係導引入射鏡頭筒10前方物體2之反射光線20進入影像感測器13。電路板(PCB)14係呈圓形平板狀，且其中央處為圓形中空，並包圍鏡頭筒10。其中，於電路板14之一面更安裝至少一發光源15，發光源係為發光二極體(LED)，並圍繞於鏡頭筒10，其係用以發出照 亮物體2之可見光。另外，介於電路板14及影像感測器載板12之間係以至少一支架16做為支撐。 In addition, the light guiding structure of the present invention further includes an image sensor carrier 12, an image sensor 13, a circuit board 14, at least one light source 15 and at least one bracket 16. The image sensor 13 is placed on the image sensor carrier 12, and the inside of the other end of the lens barrel 10 is overlapped with the image sensor 13 by the tube wall, and sealed by the sealant 130 to isolate the image sensing. The lens 13 and the external environment, such that the lens barrel 10 can fix the distance between the optical lens 100 and the image sensor 13 without being affected by some between the image sensor carrier 12 and the lens barrel 10. The shape changes or shifts, causing a change in the focal length. The optical lens 100 provided in the lens barrel 10 forms an optical path for guiding the reflected light 20 of the object 2 incident on the lens barrel 10 into the image sensor 13. The circuit board (PCB) 14 has a circular flat shape and is circularly hollow at the center thereof and surrounds the lens barrel 10. The light source is a light emitting diode (LED) and surrounds the lens barrel 10 for emitting a photo. The visible light of the bright object 2. In addition, at least one bracket 16 is supported between the circuit board 14 and the image sensor carrier 12 .
請參閱第3圖，其係為本發明之導光結構之立體結構實施例示意圖。圖中，影像感測板1設有一影像感測器13，接收由鏡頭筒10所傳遞之反射光線20並產生影像。其中，此反射光線20乃由安裝於電路板14上之至少一發光源15所發出，經照映在物體2上之後，再由物體表面反射回來所稱。而由發光源15所發射出之直接光源，其發射方向係無特定方向，倘若無特定方向之光源直接射入鏡頭筒10，並傳遞至影像感測器13而成像，則所欲觀察物體之影像即遭干擾或破壞。故鏡頭筒10即以其一端之筒徑較小的部分為遮光結構，用以阻擋此無特定方向之光源，並限制鏡頭筒10僅接收正前方入射之物體2之反射光線20，避免曝光過度，以清楚地成像所欲觀察之物體2。 Please refer to FIG. 3, which is a schematic diagram of a three-dimensional structure embodiment of the light guiding structure of the present invention. In the figure, the image sensing board 1 is provided with an image sensor 13 for receiving the reflected light 20 transmitted by the lens barrel 10 and generating an image. The reflected light 20 is emitted by at least one of the illumination sources 15 mounted on the circuit board 14, and is reflected by the surface of the object after being reflected on the object 2. The direct light source emitted by the light source 15 has no specific direction of emission. If the light source without a specific direction directly enters the lens barrel 10 and is transmitted to the image sensor 13 for imaging, the object to be observed is observed. The image is disturbed or destroyed. Therefore, the lens barrel 10 is a light-shielding structure with a portion having a smaller diameter at one end thereof for blocking the light source having no specific direction, and restricts the lens barrel 10 from receiving only the reflected light 20 of the object 2 incident directly in front, thereby avoiding overexposure. To clearly image the object 2 to be observed.
此外，設於鏡頭筒10內側上緣之複合玻璃11，係提供雙重之功效：其一為保護玻璃，其二則為濾光板。其中，保護玻璃之功效係阻隔鏡頭筒10與外界環境，避免鏡頭筒10內之光學鏡片及影像感測器13於內視鏡操作時接觸到外界環境，如酸鹼環境或人體體液等，以防止產生腐蝕或功能喪失等情形。上述濾光板之功效則係過濾紅外光，使影像感測器13所接收到的光為所需之可見光，而不會有不可見之紅外光之干擾，而影響成像之品質。 In addition, the composite glass 11 disposed on the inner edge of the inner side of the lens barrel 10 provides a dual effect: one is a protective glass, and the other is a filter. The function of the protective glass is to block the lens barrel 10 from the external environment, and prevent the optical lens and the image sensor 13 in the lens barrel 10 from contacting the external environment during the operation of the endoscope, such as an acid-base environment or a human body fluid, etc. Prevent corrosion or loss of function. The function of the above filter plate is to filter the infrared light, so that the light received by the image sensor 13 is the desired visible light without interference of invisible infrared light, which affects the quality of the image.
綜合上述之說明，本發明之導光結構之鏡頭筒係以一體成型的模式包含一個遮光結構做為習知之導(遮)光罩，可減少組裝人員之組裝導(遮)光罩的工序，避免組裝導(遮)光罩與鏡頭筒不 當而造成視角被阻擋的風險，且可降低成本；另外尚改進習知導光結構使用過多的光學元件，而僅於鏡頭筒內部設有一片複合玻璃，減少光學元件之使用及製造，進而提升光線穿透率，並降低成本。 In view of the above description, the lens barrel of the light guiding structure of the present invention comprises a light shielding structure as a conventional guide (mask) mask in an integrally formed mode, which can reduce the assembly process of the assembly person by covering the light shield. Avoid assembling the guide (mask) reticle and lens barrel When the viewing angle is blocked, the cost is reduced, and the cost can be reduced. In addition, the conventional light guiding structure is used to use too many optical components, and only one composite glass is disposed inside the lens barrel, thereby reducing the use and manufacture of the optical components, thereby improving Light penetration and reduce costs.
以上所述僅為舉例性，而非為限制性者。任何未脫離本發明之精神與範疇，而對其進行之等效修改或變更，均應包含於後附之申請專利範圍中。 The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.
1‧‧‧導光結構 1‧‧‧Light guiding structure
10‧‧‧鏡頭筒 10‧‧‧ lens barrel
100‧‧‧光學鏡片 100‧‧‧Optical lenses
11‧‧‧複合玻璃 11‧‧‧Composite glass
12‧‧‧影像感測器載板 12‧‧‧Image Sensor Carrier
13‧‧‧影像感測器 13‧‧‧Image sensor
130‧‧‧封膠 130‧‧‧Packing
14‧‧‧電路板(PCB) 14‧‧‧Circuit Board (PCB)
15‧‧‧發光源 15‧‧‧Light source
16‧‧‧支架 16‧‧‧ bracket
2‧‧‧物體 2‧‧‧ objects
20‧‧‧反射光線 20‧‧‧Reflected light
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW98146319A TWI432775B (en) | 2009-12-31 | 2009-12-31 | Light guide structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW98146319A TWI432775B (en) | 2009-12-31 | 2009-12-31 | Light guide structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201122544A TW201122544A (en) | 2011-07-01 |
| TWI432775B true TWI432775B (en) | 2014-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| TW98146319A TWI432775B (en) | 2009-12-31 | 2009-12-31 | Light guide structure |
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| TW (1) | TWI432775B (en) |
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| CN112903694A (en) * | 2021-01-18 | 2021-06-04 | 苏州华兴源创科技股份有限公司 | Flying shoot detection system and method |
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| TW201122544A (en) | 2011-07-01 |
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