TWI735087B - Lens structure of scanning device - Google Patents

Abstract

The present invention provides a lens structure of a scanning device which receives a light. The lens structure of the scanning device includes an outer casing, a collimating lens is arranged in an accommodation space of the outer casing, and an optical scanning mirror is arranged adjacent to On one side of the collimating lens, a support seat is adjacently arranged above one of the optical scanning mirrors, the support seat is provided with two sliding rails, and two protruding parts are arranged under one of the fixing frames, and are slidably arranged on the two slides. Above one of the rails, an objective lens is arranged on the inner side of one of the fixing frames; wherein, the light enters through the collimating lens to the optical scanning mirror, and then is reflected from the optical scanning mirror to the objective lens, and the light passes through The objective lens shoots out to scan the object under test.

Description

Lens structure of scanning device

The present invention relates to a lens structure of a scanning device, in particular to a lens structure that has reinforced internal components and can replace the objective lens.

The investigation of tumor development is crucial to cancer research. In the conventional biological experimental environment, culturing cells is a standard biotechnology, which is used to study cell changes under controlled conditions to predict cell responses. In addition, the colony formation assay has become a standard experimental method to characterize the development of tumors in vitro, but it is difficult to quantify the growth of cell colonies under microscope observation. Because the cell line is suspended in a cell culture environment, it is difficult to observe and count its number from a plane; Therefore, the industry and academia have designed optical coherence tomography (OCT) imaging technology for scanning and monitoring the growth of cell colonies.

Optical coherence tomography (OCT) can obtain the surface and subsurface images of transparent or translucent materials, and the images can reach the resolution of small microscope level; optical coherence tomography can be regarded as a kind of similar to ultrasonic imaging Optical scanning technology, which obtains cross-sectional images through the reflection of light from the object under test. Compared with other scanning imaging technologies, optical coherence tomography can provide accurate images of the morphology of living tissues. Therefore, in the medical field, optical coherence tomography is A very attractive technology.

Optical coherence tomography (Optical coherence tomography, OCT) is a technology for obtaining and processing optical signals, which can scan optical scattering media, such as skin tissue, organ tissue, etc., three-dimensional images obtained by optical coherence tomography Resolution can reach Micron level; optical coherent tomography technology uses the principle of light interference, usually using near-infrared light to take pictures, because the selected light has a long wavelength, it can penetrate a certain depth of the scanning medium.

The conventional optical coherent tomography system detects the light entering the lens of the scanning mirror. The collimator in the lens enters the mirror, and then reflects from the mirror to the scanning mirror. The scanning mirror shoots the light out of the objective lens to obtain a proxy measurement. It uses scanning mirrors to control the movement of the emitted light to obtain three-dimensional scanning images.

However, the conventional scanning device lens has the objective lens set at the bottom and is connected to the housing of the scanning device in a hanging manner. In the use state, the objective lens often shifts due to the movement of the scanning device. This is unacceptable for scanning devices that require accurate data. This situation will cause errors in the scanned image. Therefore, the industry and academia need to change the design of the scanning device or add reinforcement devices for this situation to avoid the lens of the scanning device. The problem of the shaking of the objective lens occurs.

In view of the above-mentioned problems of the conventional technology, the present invention provides a lens structure of a scanning device, which slides the objective lens and its fixing frame on the sliding groove structure of the support base, and uses the design of the objective lens to be set up from the bottom up, using gravity And the friction force stabilizes the objective lens, and reduces the size of the lens structure of the scanning device, which solves the problem that the objective lens moves randomly when the conventional scanning lens moves.

One object of the present invention is to provide a lens structure of a scanning device, which is fixed by a fixing frame to fix the objective lens. The above setting uses gravity and friction to stabilize the holder and objective lens, and reduces the size of the lens structure of the scanning device.

In order to achieve the aforementioned objectives and effects, the present invention provides a lens structure of a scanning device that receives a light beam. The lens structure of the scanning device includes: a housing, a collimating lens, an optical scanning mirror, and a support Holder, a fixing frame and an objective lens, one of the outer shells An accommodating space is provided on the inner side, a first through hole is penetrated on one side of the outer shell, a second through hole is penetrated on one of the outer shells, and the collimating lens is arranged in the accommodating space of the outer shell and fixed Is arranged in the first perforation, the optical scanning mirror is adjacently arranged on one side of the collimating lens, the supporting base is arranged adjacently above one of the optical scanning mirrors, the supporting base is provided with two sliding rails, and the fixing frame Two protruding pieces are arranged below one, the two protruding pieces are slidably arranged above one of the two sliding rails, the other end of the fixing frame corresponds to the second perforation, and the objective lens is arranged inside one of the fixing frames; wherein, the The light enters the first perforation, passes through the collimating lens and reaches the optical scanning mirror, and then reflects from the optical scanning mirror to the objective lens. The light passes through the objective lens and exits the second perforation; this structure changes the objective lens The sliding groove structure of the support base and the fixing frame are slidably arranged to stabilize the objective lens by using gravity and friction force and reduce the structure size of the scanning device.

In an embodiment of the present invention, a culture member is arranged above one of the outer shells, and the position of the culture member corresponds to the second perforation.

In an embodiment of the present invention, the optical scanning mirror includes a first scanning mirror and a second scanning mirror, the first scanning mirror and the second scanning mirror are arranged crosswise, and one end of the first scanning mirror is aligned Straight lens, one end of the second scanning mirror corresponds to the objective lens.

In an embodiment of the present invention, a scanning mirror support member is arranged under one of the support bases, and the optical scanning mirror is fixed on one side of the scanning mirror support member.

In an embodiment of the present invention, an objective lens accommodating space is provided above one of the support bases, and the fixing frame is located inside one of the objective lens accommodating spaces.

In an embodiment of the present invention, a third perforation is penetrated through the support base, and the position of the third perforation corresponds to the position of the optical scanning mirror.

In an embodiment of the present invention, a fourth through hole and a sixth through hole are penetrated from the bottom to the top of the fixing frame, and the position of the fourth through hole corresponds to the position of the third through hole.

In an embodiment of the present invention, an objective lens limiter is sleeved under one of the fourth through holes of the fixing frame.

In an embodiment of the present invention, it further includes two notches, and the two notches are provided with two outer sides below one of the two sliding rails.

In an embodiment of the present invention, it further includes two limiting members, the two limiting members are arranged outside the two ends of the two protruding members, and the positions of the two limiting members correspond to the positions of the two cutting grooves.

1: The lens structure of the scanning device

10: Outer shell

12: accommodating space

14: The first perforation

16: second perforation

18: opening

20: Collimating lens

30: Optical scanning mirror

32: The first scanning mirror

34: second scanning mirror

40: Support seat

41: Objective lens housing space

42: Slide

43: grooving

44: third perforation

46: Scanning mirror support

50: fixed frame

52: protruding piece

53: limit piece

54: Fourth Piercing

56: Objective lens limiter

57: Fifth Piercing

58: Sixth Piercing

60: Objective

70: Culture Pieces

L: light

Figure 1: It is a schematic diagram of the structure of the embodiment of the present invention; Figure 2: It is a schematic diagram of other elements of the embodiment of the present invention; Figure 3: It is a schematic diagram of other objective lenses of the embodiment of the present invention; and fourth Figure: It is a schematic diagram of the sliding component of the embodiment of the present invention.

In order to enable your reviewer to have a further understanding and understanding of the features of the present invention and the effects achieved, the following examples and descriptions are provided here: The present invention provides a lens structure of a scanning device, which receives a light, The lens structure of the scanning device includes an outer casing, a collimating lens is arranged in an accommodating space of the outer casing, an optical scanning mirror is arranged adjacent to one side of the collimating lens, and a supporting seat is arranged adjacent to Above one of the optical scanning mirrors, the support base is provided with two sliding rails, one of the fixing frames is provided with two protruding pieces under one of the two sliding rails, and is slidably arranged above one of the two sliding rails, and an objective lens is arranged on the inner side of one of the fixing frames ; With this structure, the objective lens and its fixed frame are slidably arranged in the sliding groove structure of the support base, which solves the problem of the objective lens moving randomly when the conventional scanning lens is moved.

Please refer to Figure 1, which is a schematic structural diagram of an embodiment of the present invention. As shown in the figure, this embodiment is the first embodiment. It is a lens structure 1 of a scanning device, which receives a light L of the scanning device. The light L is used to scan the detection light of the object to be measured. The lens structure 1 of the scanning device includes an outer housing 10, a collimating lens 20, an optical scanning mirror 30, a support base 40, a fixing frame 50, and a The objective lens 60, wherein an accommodating space 12 is provided inside one of the outer casings 10, and the collimating lens 20, the optical scanning lens 30, the support base 40, the fixing frame 50, and the objective lens 60 are provided in the accommodating space 12 Inside.

Referring to Figure 1 again, as shown in the figure, in this embodiment, a first perforation 14 is penetrated on one side of the outer casing 10, and a second perforation 16 is also penetrated on one of the outer casings 10, and the collimation The lens 20 is arranged in the accommodating space 12, the collimating lens 20 is fixed on one side of the first through hole 14, and the optical scanning mirror 30 is adjacently arranged on one side of the collimating lens 20 so that light can be The collimating lens 20 is projected to the optical scanning mirror 30, and the supporting seat 40 is arranged adjacently above one of the optical scanning mirrors 30 and connected to the inner wall of the outer housing 10, and the supporting seat 40 is provided with two sliding rails 42 (Only one of them is marked in the figure) to provide a component sliding arrangement. Two protruding pieces 52 are provided under one of the fixing frames 50 (only one of them is marked in the figure), and the two protruding pieces 52 are slidably arranged on the two protruding pieces 52. Above one of the slide rails 42, gravity and friction are used to prevent the fixing frame 50 from moving freely on the support base 40. One end of the fixing frame 50 corresponds to the second perforation 16, and the objective lens 60 is set on the fixing frame 50. On the inner side, the fixed frame 50 is used to cover the objective lens 60 to prevent the objective lens 60 from moving randomly.

Following the above, this embodiment is used for the lens structure of the scanning device, such as the scanning lens structure of optical coherence tomography (OCT). The scanning device emits the light L into the first perforation 14 and then passes through the The collimating lens 20 is then shot from the collimating lens 20 to the optical scanning mirror 30, and then the light L is reflected from the optical scanning mirror 30 to the objective lens 60, and the light L passes through the objective lens 60 and then exits the second perforation 16. Complete the movement path of the light in this embodiment.

Following the above, in this embodiment, the optical scanning mirror 30 uses a conventional biaxial scanning mirror (or Galvo scanner). The optical scanning mirror 30 includes a first scanning mirror 32 and a second scanning mirror 32. Scanning mirror 34. The first scanning mirror 32 and the second scanning mirror 34 are arranged crosswise. For example, a plastic frame is used to cross the first scanning mirror 32 and the second scanning mirror 34. One end of the first scanning mirror 32 Corresponding to the collimating lens 20, one end of the second scanning mirror 34 corresponds to the objective lens 60, the light L passes through the collimating lens 20 and is directed to the first scanning mirror 32, and the first scanning mirror 32 reflects the light L To the second scanning mirror 34, the second scanning mirror 34 then reflects the light L to the objective lens 60; a motor (such as a servo motor) is used to control the rotation angle of the first scanning mirror 32 and the second scanning mirror 34 ( For example, the first scanning mirror 32 controls the x-axis, and the second scanning mirror 34 controls the y-axis) to control the movement of the light L to obtain a three-dimensional image of the object to be measured.

Following the above, in this embodiment, an objective lens accommodating space 41 is provided above one of the support seats 40 to provide component accommodation, and the fixing frame 50 is located inside one of the objective lens accommodating spaces 41; wherein the support seat 40 passes through A third perforation 44 is provided. The position of the third perforation 44 corresponds to the position of the optical scanning mirror 30. The fixing frame 50 penetrates a fourth perforation 54 and a sixth perforation 58 from bottom to top, and the fourth perforation 54 And the position of the sixth perforation 58 corresponds to the position of the third perforation 44, the light L is reflected by the optical scanning mirror 30, passes through the third perforation 44 and the fourth perforation 54 in sequence, and then reaches the objective lens 60, The light L passes through the sixth perforation 58 and exits the second perforation 16.

In this embodiment, the light L is received, and the collimating lens 20 is arranged in the accommodating space 12 of the outer casing 10, and the optical scanning mirror 30 is adjacently arranged on one side of the collimating lens 20, and then opposite to each other. The support base 40 is adjacently arranged above one of the optical scanning mirrors 30, the two sliding rails 42 provided in the support base 40 are used to slide the two protrusions 52 of the fixing frame 50, and the objective lens 60 is set on the fixing frame 50 One inner side; using this structure to slide the two protrusions 52 of the fixing frame 50 on the two sliding grooves 42 of the support base 40 to fix the structure of the objective lens 60 to solve the problem of the conventional scanning lens when the objective lens is moving The problem of arbitrary movement.

Please refer to Figures 2 and 4. Figure 2 is a schematic diagram of other components of the embodiment of the present invention, and Figure 4 is a schematic diagram of the component sliding of the embodiment of the present invention. As shown in the figure, this embodiment is based on the above The structure of the first embodiment. In this embodiment, the support base 40 further includes two slits 43. The two slits 43 are arranged under one of the two sliding rails 42 and outside the two sliding rails 42 so that the two sliding rails 42 form an L-shape. The groove body and the corresponding fixing frame 50 further include two limiting members 53, which are arranged outside the two ends of the two protruding members 52, so that the two protruding members 42 form an L-shaped protrusion The position of the two stoppers 53 corresponds to the position of the two slots 43. The combination of the two slots 43 and the two stoppers 53 mentioned above can strengthen the combination of the support base 40 and the fixing frame 50 and prevent The fixing frame 50 moves up and down to make it stronger.

Following the above, in this embodiment, a culture member 70 can be provided on one of the outer shells 10, and the position of the culture member 70 corresponds to the second perforation 16. The culture member 70 is a conventional culture plate or can be loaded into the test For a transparent container of objects, a scanning mirror support 46 is further provided under one of the support bases 40, and the optical scanning mirror 30 is fixed on one side of the scanning mirror support 46 to prevent the optical scanning mirror 30 from being in the lens of the scanning device The structure 1 is loose during movement; an objective lens limiter 56 is sleeved under one of the fourth through holes 54 of the fixing frame 50 for fixing the objective lens 60, and the objective lens 60 is inserted into the fixing frame 50 from bottom to top The fourth perforation 54 is arranged on the inner side of the fixing frame 50, and the objective lens limiting member 56 is inserted into the inner side of the fourth perforation 54 to restrict the position of the objective lens 60 and prevent it from moving, wherein the objective lens is limited The member 56 passes through a fifth perforation 57. The light L passes through the fifth perforation 57 and the fourth perforation 54 in sequence and is emitted to the objective lens 60, and finally passes through the objective lens 60 to emit the sixth perforation 58 and the second perforation. Perforation 16; other elements and their operating relationships in this embodiment are the same as those in the first embodiment, so they will not be described again.

Following the above, in this embodiment, an opening 18 can be penetrated on one side of the outer housing 10, and the opening 18 provides for the insertion of a data transmission line or a power supply line and is connected to the optical scanning mirror 30. For example, an external control device transmits a control signal to the optical scanning mirror 30 to control the rotation angles of the first scanning mirror 32 and the second scanning mirror 34.

Please refer to Figure 3, which is a schematic diagram of another objective lens of the embodiment of the present invention. As shown in the figure, in this embodiment, the fixed frame 50 can be changed according to the magnification and numerical aperture of the objective lens 60. The objective lens 60 of different magnifications is installed in the holder 50 of different sizes in advance. If you want to change the objective lens 60 of different magnifications, you only need to slide it into the two sliding grooves 42 of the support 40. The complicated objective lens installation steps of the conventional device are eliminated.

This embodiment is the structure of the above-mentioned first embodiment adding the two cut grooves 43 and the two limit members 53, and the combination of the two cut grooves 43 and the two limit members 53 prevents the fixing frame 50 from being attached to the support base 40 Move up and down to make it firmer; at the same time, the objective lens limiter 56 is inserted into the fourth through hole 54 of the fixing frame 50 to limit the position of the objective lens 60 to prevent it from moving. This embodiment is compared with the above-mentioned first In an embodiment, it can further fix the fixing frame 50 and the objective lens 60 on the supporting base 40.

In summary, the present invention provides a lens structure of a scanning device that receives the light of the scanning device. The lens structure of the scanning device includes the outer casing, and the collimating lens is disposed in the accommodating space of the outer casing, The optical scanning mirror is adjacently arranged on one side of the collimating lens, the supporting base is adjacently arranged above one of the optical scanning mirrors, the supporting base is provided with the two sliding rails, and the two convexes are provided under one of the fixing frames. The object lens is arranged on the inner side of one of the fixing frames, and the fixing frame is slidably installed in the two sliding groove structure of the supporting base by this structure, and the fixing frame The objective lens is fixed at the same time to solve the problem that the objective lens is loose and arbitrarily moving when the conventional scanning lens is moved; and the present invention can also use the fixing frame of different sizes to replace the objective lens of different magnifications, and simply slide it into the two supporting bases. The slide groove eliminates the complicated objective lens installation steps of the conventional device.

Therefore, the present invention is really novel, progressive, and available for industrial use. It should meet the patent application requirements of my country's patent law. Undoubtedly, I filed an invention patent application in accordance with the law. I pray that the Bureau will grant the patent as soon as possible.

However, the foregoing is only an embodiment of the present invention, and is not used to limit the scope of implementation of the present invention. Therefore, all the equivalent changes and modifications of the shape, structure, characteristics and spirit described in the scope of the patent application of the present invention are mentioned. All should be included in the scope of the patent application of the present invention.

1: The lens structure of the scanning device

10: Outer shell

12: accommodating space

14: The first perforation

16: second perforation

20: Collimating lens

30: Optical scanning mirror

32: The first scanning mirror

34: second scanning mirror

40: Support seat

41: Objective lens housing space

42: Slide

44: third perforation

50: fixed frame

52: protruding piece

54: Fourth Piercing

58: Sixth Piercing

60: Objective

L: light

Claims (9)

A lens structure of a scanning device, which receives a light. The lens structure of the scanning device includes: an outer casing, an inner side of which is provided with an accommodating space, one side of the outer casing is penetrated with a first perforation, and the outer casing A second through hole is penetrated above one; a collimating lens is arranged in the accommodating space and fixed on the first through hole; an optical scanning mirror is arranged adjacent to one side of the collimating lens; A support seat, which is adjacently arranged above one of the optical scanning mirrors, the support seat is provided with two sliding rails; a fixing frame, one of which is provided with two protruding pieces below one, and the two protruding pieces are slidably arranged on one of the two slide rails An upper side, one end of the fixing frame corresponds to the second perforation; and an objective lens, which is arranged inside one of the fixing frames; wherein the light enters the first perforation and passes through the collimating lens to the optical The scanning mirror is then reflected from the optical scanning mirror to the objective lens, and the light rays pass through the objective lens and exit the second perforation. The lens structure of the scanning device according to claim 1, wherein a culture member is arranged above one of the outer shells, and the position of the culture member corresponds to the second perforation. The lens structure of the scanning device according to claim 1, wherein the optical scanning mirror is a biaxial scanning mirror (or Galvanometer scanner), and the optical scanning mirror includes a first scanning mirror and a second scanning mirror The first scanning mirror and the second scanning mirror are arranged crosswise, one end of the first scanning mirror corresponds to the collimating lens, one end of the second scanning mirror corresponds to the objective lens, which utilizes the first scanning mirror and the The rotation angle of the second scanning mirror controls the movement of the light. The lens structure of the scanning device according to claim 1, wherein one of the supporting seats is arranged above An objective lens accommodating space, and the fixing frame is located inside one of the objective lens accommodating spaces. The lens structure of the scanning device according to claim 1, wherein a third perforation is penetrated through the support base, and the position of the third perforation corresponds to the position of the optical scanning mirror. The lens structure of the scanning device according to claim 5, wherein the fixing frame is provided with a fourth perforation and a sixth perforation from bottom to top, and the position of the fourth perforation corresponds to the position of the third perforation. The lens structure of the scanning device according to claim 6, wherein an objective lens limiter is sleeved under one of the fourth through holes of the fixing frame. The lens structure of the scanning device according to claim 1 further includes two notches, and the two notches are disposed on two outer sides below one of the two sliding rails. The lens structure of the scanning device as described in claim 8, further comprising two limiting members, the two limiting members are arranged outside the two ends of the two protruding members, and the positions of the two limiting members correspond to the two grooves Location.

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