CN204215096U - Lens structure - Google Patents

Abstract

The utility model provides a lens structure. The lens structure includes an image capture module, a circuit substrate, a waterproof shield and a light source module. The image capture module is composed of multiple optical lenses and a light sensing component. The circuit substrate includes an upper substrate and a lower substrate, and the image capture module is disposed on the upper surface of the upper substrate. In addition, the waterproof shielding sleeve is set on the image capture module. The waterproof shield includes a light-transmitting thin layer and a light-shielding structure. The light-transmitting thin layer is located at the top of the light-shielding structure, and the light-shielding structure is attached to the surrounding periphery of the light-transmitting thin layer. end. The light source module includes a light panel with a through hole in the center. It is characterized in that the waterproof shield passes through the through hole so that the light panel is disposed on the upper surface of the upper substrate. The beneficial effect of the utility model is that it can reduce the occurrence of glare and uneven light and dark in optical images, and also has the function of waterproofing.

Description

lens structure

technical field

The utility model relates to a lens structure, in particular to a lens structure applied to an endoscope device.

Background technique

At present, a general endoscope device (not shown) for inspecting the inside of the body is composed of a lens structure and a pipeline for transmitting signals. Then, the pipeline transmits the image captured by the lens structure to a screen for viewing by the user. The internal organs of the body can be inspected with an endoscopic device as long as there is a hole that communicates with the outside of the body. A colonoscope is inserted through the anus. In addition, the internal structure of the object can also be inspected internally using an industrial endoscope device. For example, an industrial endoscope can check whether there is carbon deposit in a car engine.

Please refer to FIG. 1 , which is a schematic diagram of a lens structure 10 of a known endoscope device. The lens structure 10 includes an image capturing module 11 , a circuit board 12 , a light source module 13 and a waterproof sleeve 14 . The image capture module 11 is composed of a plurality of optical lenses 111 and a light sensor component 112 . The waterproof sleeve 14 covers the image capture module 11 , the circuit board 12 and the light source module 13 to prevent bodily fluids inside the human body from invading the image capture module 11 and the light source module 13 . The light source module 13 needs to illuminate the front to allow the image capture module 11 to successfully capture the internal image of the body or object (because the inside of the human body or object does not transmit light). However, when the top surface of the waterproof sleeve 14 is stained with dust or foreign matter is attached, the light beam emitted by the light source module 13 will be reflected into the image capture module 11 when the light beam emitted by the light source module 13 irradiates the dust, resulting in the optical The glare of the image, in detail, is that the captured optical image produces bright spots (or bright areas), thereby reducing the quality of the optical image.

In addition, please refer to FIG. 1 again. When the top surface 141 of the waterproof sleeve 14 is not flatly pushed to the image capture module 11, there will be a gap between the image capture module 11 and the top surface 141 of the waterproof sleeve 14, causing the light source The light beam emitted by the module 13 will also be reflected into the image capture module 11 through the top surface of the waterproof sleeve 14, thus causing glare and uneven light and shade of the optical image.

Therefore, how to design a lens structure applied to the endoscope device, which can reduce the occurrence of glare and uneven light and shade of the optical image, and also have the effect of waterproofing, is worth considering by those with ordinary knowledge in the field. land.

Contents of the invention

The purpose of this utility model is to provide a lens structure, which can reduce the occurrence of glare and uneven light and shade of the optical image, and also has the effect of waterproofing.

The utility model provides a lens structure, which includes an image capture module, a circuit substrate, a waterproof shield and a light source module. The image capturing module is composed of a plurality of optical lenses and a light sensing component. The circuit substrate includes an upper substrate and a lower substrate, the lower substrate is connected under the upper substrate, and the image capture module is arranged on the upper surface of the upper substrate. In addition, the waterproof shield is set on the image capture module. The waterproof shield includes a light-transmitting thin layer and a light-shielding structure. The light-transmitting thin layer is located on the top of the light-shielding structure, and the light-shielding structure is attached to the periphery of the light-transmitting thin layer. end. The light source module includes a lamp board, and a through hole is formed in the center of the lamp board. The waterproof shield passes through the through hole, so that the lamp board is arranged on the upper surface of the upper substrate.

In the above lens structure, the light source module further includes a flexible circuit board, one end of the flexible circuit board is connected to the light board, and the other end of the flexible circuit board is electrically connected to the lower part in a detachable manner substrate.

The above lens structure further includes a first encapsulant, and the waterproof shield, the upper substrate and the optical film group are positioned using the first encapsulant.

In the above lens structure, the first packaging colloid is silica gel.

The lens structure above further includes a second encapsulant, and the waterproof shield, the circuit substrate and the optical film group are positioned using the second encapsulant.

In the above lens structure, the second packaging colloid is silica gel.

The above-mentioned lens structure further includes a housing structure, and the housing structure covers the second encapsulant.

In the above lens structure, the light source module further includes at least one light emitting unit, and the light emitting unit is arranged on the light board.

In the above lens structure, the light emitting unit is an LED light bulb.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the attached drawings.

Description of drawings

FIG. 1 shows a lens structure 10 of a known endoscope device.

FIG. 2 shows the lens structure 20 of this embodiment.

3 and 4 are perspective views of some components of the lens structure 20 of this embodiment.

FIG. 5 is a schematic diagram of the direction of the light beam emitted by the light emitting unit.

FIG. 6 shows a lens structure 30 of another embodiment.

FIG. 7 is a three-dimensional exploded view of some components of the lens structure 30 .

FIG. 8 shows a lens structure 40 of still another embodiment.

Detailed ways

Please refer to FIG. 2 , FIG. 3 and FIG. 4 . FIG. 2 shows the lens structure 20 of this embodiment, and FIG. 3 and FIG. 4 are perspective views of some components of the lens structure 20 of this embodiment. The lens structure 20 of this embodiment is suitable for installation in medical and industrial endoscope devices. The lens structure 20 includes an image capture module 21 , a circuit substrate 22 , a waterproof shield 24 and a light source module 23 . The image capture module 21 is composed of a plurality of optical lenses 211 and a light sensor component 212 , these optical lenses 211 form an optical path to guide the light reflected from the outside, and then received by the light sensor component 212 . The circuit substrate 22 is composed of an upper substrate 221 and a lower substrate 222 , the lower substrate 222 is connected directly below the upper substrate 221 , and the image capture module 21 is connected to the upper surface of the upper substrate 221 . The image capture module 21 transmits the captured optical image to an external transmission pipeline (not shown) through the circuit substrate 22 . In addition, the above-mentioned waterproof shield 24 includes a light-transmitting thin layer 241 and a light-shielding structure 242, the light-transmitting thin layer 241 is located at the top position of the light-shielding structure 242, and the light-shielding structure 242 is attached to the four peripheral ends of the light-transmitting thin layer 241 The light-transmitting thin layer 241 is, for example, transparent glass or transparent acrylic, and the light-shielding structure 242 is made of an opaque material. The waterproof shield 24 is mainly sleeved on the image capture module 21 and closely cooperates with the image capture module 21 (refer to FIG. 4 ), so as to effectively prevent body fluids from entering the image capture module 21 . In addition, the light source module 23 includes a light board 232 and at least one light emitting unit 231. The light board 232 is a flat hollow ring structure. Moreover, a through hole 233 is formed at the center of the lamp board 232 , and the waterproof shield 24 passes through the through hole 233 so that the lamp board 232 is disposed on the upper surface of the upper substrate 221 . The waterproof shield 24 , the upper substrate 221 and the optical film set 24 are sealed and positioned by a first encapsulant 25 , and the first encapsulant 25 also has the function of protecting the optical film set 24 . Afterwards, the first encapsulant 25 is tightly covered by a housing structure 26, and the material of the housing structure 26 is, for example, metal. Among the above, the first encapsulant 25 is, for example, optical-grade glue (silica gel), and the optical-grade glue after solid molding has the advantages of high light transmission, anti-glare, and scratch resistance. In addition, the formed optical grade glue has low viscosity and easy removal. In this way, the first encapsulant 25 can be easily removed from the waterproof shield 24 , the upper substrate 221 and the optical film group 24 .

Please refer to FIG. 5 , which is a schematic diagram of the direction of the light beam emitted by the light emitting unit 231 . Compared with the known lens structure 10, the light beam emitted by the light emitting unit 222 of the lens structure 20 of this embodiment will pass through the first encapsulant 25 with high light transmittance and then be emitted to the outside, so it will not be reflected to the image capture The optical image captured by the image capturing module 21 is not prone to glare, white-out or uneven brightness. Moreover, the side light beam emitted by the light emitting unit 231 will be blocked by the light shielding structure 242, so the light beam emitted by the light emitting unit 231 will be concentrated in the front, so the front of the lens structure 20 will have a brighter field of vision. More importantly, the lens structure 20 makes the image capture module 21 that does not have waterproof performance waterproof, and strengthens the protective effect of the lens structure 20 .

Please refer to FIG. 6 and FIG. 7 . FIG. 6 shows a lens structure 30 of another embodiment, and FIG. 7 shows a three-dimensional exploded view of some components of the lens structure 30 . In addition to the lens structure 30 including all the technical features of the lens structure 20, the light source module 33 of the lens structure 30 further includes a flexible circuit board 333, one end of the flexible circuit board 333 is connected to the light board 232, and the other end It is electrically connected to the lower substrate 222 of the circuit substrate 22 in a detachable manner, and transmits power to the light emitting unit 231 on the lamp board 232 through the lower substrate 222 . In this way, the lens structure 30 can change the quantity or type of the light emitting units 231 according to different needs, and the assembly and change are flexible and easy to replace.

Please refer to FIG. 8. FIG. 8 shows a lens structure 40 in another embodiment. The lens structure 40 is changed through the lens structure 20. The difference between the lens structure 40 and the lens structure 20 is that the lens structure 40 uses a first The second encapsulant 45 replaces the first encapsulant 25 of the lens structure 20. The second encapsulant 45 is, for example, optical-grade glue (silica gel), and the second encapsulant 45 will be sealed and positioned together with the lower substrate 222, that is, the circuit The upper and lower sides of the substrate 24 are encapsulated (the first encapsulant 25 of the lens structure 20 is not encapsulated on the lower substrate 242 ). Then, the second encapsulant 45 is also tightly covered by the shell 26 structure.

Although the utility model has been disclosed above with preferred embodiments, it is not intended to limit the utility model. Any person with ordinary knowledge in the technical field may make some modifications without departing from the spirit and scope of the utility model. Change and retouching, so the scope of protection of the present utility model should be defined by the scope of the attached patent application as the criterion.

Claims (9)

1. A lens structure, the lens structure is characterized in that, comprising: An image capture module, the image capture module is composed of a plurality of optical lenses and a light sensor component; A circuit substrate, the circuit substrate includes an upper substrate and a lower substrate, the lower substrate is connected below the upper substrate, and the image capture module is arranged on the upper surface of the upper substrate; A waterproof shield, the waterproof shield is sleeved on the image capture module, the waterproof shield includes a light-transmitting thin layer and a light-shielding structure, the light-transmitting thin layer is located at the top of the light-shielding structure, and the light-shielding structure is bonded at the peripheral ends of the light-transmitting sheet; and A light source module, the light source module includes a lamp board with a through hole in the center of the lamp board; wherein the waterproof shield passes through the through hole so that the lamp board is arranged on the upper surface of the upper substrate. 2. The lens structure according to claim 1, wherein the light source module further comprises a flexible circuit board, one end of which is connected to the light board, and the other end of the flexible circuit board is The lower substrate is electrically connected in a detachable manner. 3. The lens structure according to claim 1, further comprising a first encapsulant, the waterproof shield, the upper substrate and the optical film group are positioned using the first encapsulant. 4. The lens structure according to claim 3, wherein the first encapsulant is silica gel. 5. The lens structure as claimed in claim 1, further comprising a second encapsulant, the waterproof shield, the circuit substrate and the optical film group are positioned using the second encapsulant. 6. The lens structure according to claim 5, wherein the second encapsulant is silica gel. 7. The lens structure as claimed in claim 5, further comprising a housing structure, the housing structure covering the second encapsulant. 8. The lens structure according to claim 1, wherein the light source module further comprises at least one light emitting unit, and the light emitting unit is disposed on the light board. 9. The lens structure according to claim 8, wherein the light emitting unit is an LED light bulb.