TWI480580B - Microscope - Google Patents

Description

Microscope device

The present invention relates to a microscope device, and more particularly to a microscope device with an anti-collision bar.

Binocular stereo microscopes are widely used in the slicing operations and microsurgery in the biological and medical fields, as well as in the observation, assembly, and inspection of small parts and integrated circuits in the industry. The imaging principle of the binocular stereo microscope is that two monocular barrel microscopes are placed side by side. The optical axes of the two eyepiece barrels are equivalent to the angle of view formed when people observe an object with binoculars, thereby forming a three-dimensional space. Visual image.

The binocular stereo microscope is used by placing the object to be observed on the stage, aligning the specimen with the center of the light-passing hole, lowering the objective lens barrel or raising the stage, and observing from the side, so that the lower end of the objective lens The object to be tested is gradually approaching, but the object cannot be touched, and then observed from the eyepiece, and slowly adjusted to a clear image with a focusing device.

When using a binocular stereo microscope to observe the surface condition at different positions of an object having a height difference on the surface, it is necessary to move the object back and forth, often because the object image is not observed, and the microscope lens is adjusted too low, so that the microscope is made The lens collides with the object and can damage the microscope lens in severe cases. Moreover, when observing a batch object using a binocular stereo microscope, each of the observations needs to be refocused using the above method, resulting in inconvenience in operation and waste of time.

In view of this, it is necessary to provide a microscope device that prevents the lens from colliding with the object and can focus quickly in batch observation.

The present invention provides a microscope apparatus including a stage, an objective lens barrel, an objective lens, an eyepiece, a focusing device, and an anti-collision bar mounted on the objective lens barrel. The anti-collision bar includes a first fixing portion, a second fixing portion and a supporting portion. The first fixing portion is fixedly connected to the second fixing portion, the first fixing portion is for fixing the collision bar to the objective lens barrel, and the second fixing portion is for fixing the The support portion is in the form of a strip, has a positioning and supporting action, and is capable of adjusting the height in the moving direction of the objective lens.

The first fixing portion includes an unclosed ring and a clamping device, and the inner circle radius of the ring is substantially the same as the cylindrical radius of the lower end of the lens barrel, and the unclosed ring can be sleeved on The outer circumferential surface of the objective lens barrel. The clamping device is fixed to an opening of the unclosed ring, and the clamping device fixes the unclosed ring to the objective lens barrel.

The second fixing portion includes a columnar body and a pressing device, and the columnar body has a through hole, and the through hole allows the supporting portion to pass. The pressing device is placed on the side of the second fixing portion, and the pressing device can press the support portion to fix the supporting portion.

When the surface condition of the different positions of the object having the height difference on the surface is observed by using the microscope device of the present invention, the support portion of the anti-collision bar is fixed at the same position as the height of the object, that is, because of the supporting action of the supporting portion, It prevents the microscope objective lens from being adjusted too low, thus preventing the microscope objective lens from colliding with the object. When observing a batch object using the microscope device of the present invention, only the observation of the first object needs to be gradually focused, and after obtaining the best observation state, the support portion of the anti-collision bar can be fixed at the focus height for positioning, and the like. When the object is observed, the positioning of the support portion can be used to quickly focus, and then a slight focus can be observed.

The invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 , an embodiment of the present invention provides a microscope device 100 including a stage 12 , an objective lens barrel 14 , an objective lens 16 , an eyepiece 18 , a focusing device 20 , and an anti-frame mounted on the objective lens barrel 14 . Hit the rod 22.

Referring to FIG. 2 , the anti-collision bar 22 includes a first fixing portion 24 , a second fixing portion 26 , and a supporting portion 28 . The first fixing portion 24 is fixedly connected to the second fixing portion 26 for fixing the anti-collision bar 22 to the objective lens barrel 14, and the second fixing portion 26 is used to fix the support portion 28.

The first fixing portion 24 includes an unclosed ring 240 and a clamping device. The first fixing portion 24 fixes the unclosed ring 240 to the objective lens barrel 14 by the clamping device. The radius of the inner circle of the ring 240 is substantially the same as the radius of the cylinder of the objective lens barrel 14, and the unclosed ring 240 is sleeved on the outer circumferential surface of the objective lens barrel 14. The clamping device is fixed to both end faces of the opening 242 of the unclosed ring 240. In this embodiment, the clamping device is two fixing pieces 241 arranged in parallel, and each of the fixing pieces 241 is provided with a screw hole 243, and one of the screw holes 243 of the fixing piece 241 is coupled to the other. The screw holes 243 on the fixing piece 241 are opposed to each other. The two screw holes 243 are connected by a bolt 244 and a nut (not shown) and can be locked, so that the unclosed ring 240 is fixed to the objective lens barrel 14.

The second fixing portion 26 includes a columnar body 260 and a pressing device. The columnar body 260 has a rectangular outer shape with a through hole 262 in the middle, the through hole 262 can allow the support portion 28 to pass, that is, the support portion 28 can be in the through hole 262 relative to the The second fixing portion 26 slides. The through hole 262 of the second fixing portion 26 extends in a direction parallel to the central axis of the unclosed ring 240. A portion of the outer side surface of the second fixing portion 26 is fixed to an outer side surface of the unclosed ring 240. In this embodiment, the pressing device is a bolt 261, and one side of the second fixing portion 26 is provided with a threaded through hole 262, and the bolt 261 can be screwed into the threaded through hole 262, and can be pressed. The support portion 28 is tightly fixed to the support portion 28 in the through hole 262.

The support portion 28 is strip-shaped, has positioning and supporting functions, and is capable of adjusting the height in the moving direction of the lens of the objective lens 16. In this embodiment, the support portion 28 has a square end 280 and a frustoconical end 281 opposite the square end 280.

It can be understood that the clamping device can also be two latches that can be engaged with each other; the second fixing portion 26 can also be of a cylindrical outer shape, and the through hole 262 can also be cylindrical; the supporting portion The square end 280 of 28 may also be a cylindrical end, and the frustoconical end 281 may also be a square end, a tapered end or a cylindrical end, but a truncated tapered end is preferred; the pressing device may also be a shrapnel . When the height of the support portion 28 is adjusted, it can also be adjusted by adjusting the position of the first fixing portion 24 on the objective lens barrel 14. The unclosed ring 240 can also be directly welded and fixed to the objective lens barrel 14.

When observing the surface condition of different positions of the object having the height difference on the surface, the microscope device 100 is operated by fixing the first fixing portion 24 of the anti-collision bar 22 to the objective lens barrel 14, The support portion 28 is inserted into the through hole 262 of the second fixing portion 26, and the frustoconical end 281 faces the stage 12, and the position of the support portion 28 is adjusted so that the frustoconical end 281 and the bottom end of the objective lens 16 in the moving direction of the objective lens 16 are exactly equal to the height of the object, screwing the bolt 261 into the threaded through hole 262, and pressing the support portion 28, so that The support portion 28 is fixed at this position. The object to be tested 30 is placed on the stage 12, and the objective lens barrel 14 is lowered to gradually approach the lower end of the objective lens 16 and the specimen, and then viewed from the eyepiece 18, and the object is sharpened by the focusing device 20. Because of the fixing action of the supporting portion 28, when the object is moved back and forth on the stage 12 to observe different positions of the object, the lens of the microscope objective lens 16 can be prevented from being adjusted too low, thereby preventing the lens of the microscope objective lens 16 from being Objects collided.

In the batch observation, the microscope device 100 is operated by fixing the first fixing portion 24 of the anti-collision bar 22 to the objective lens barrel 14, and inserting the supporting portion 28 into the second fixing portion. In the through hole 262 of 26, and the frustoconical end 281 faces the stage 12. One object to be tested 30 of a batch of objects is placed on the stage 12, and the objective lens barrel 14 is lowered to bring the lower end of the objective lens 16 closer to the specimen, but the object cannot be touched, and then viewed from the eyepiece 18, and the focusing is performed. The device 20 is adjusted to a clear image. Keeping the microscope device 100 stationary, adjusting the position of the support portion 28 such that the frustoconical end 281 just contacts the stage 12, screwing the bolt 261 into the threaded through hole 262, and The support portion 28 is pressed to fix the support portion 28. After the first object to be tested 30 is observed, the objective lens barrel 14 is raised, and the other of the plurality of objects is placed on the stage 12, and the objective lens barrel 14 is lowered to bring the frustoconical end 281 closer. The stage 12 is then viewed from the eyepiece 18 and adjusted to a sharp image by the focusing device 20. Other items in a batch of objects can operate in the same way.

When the surface condition of the different positions of the object having the height difference on the observation surface is observed by using the microscope apparatus 100 of the present invention, the support portion 28 of the collision bar 22 is fixed at the same position as the height of the object, that is, because the support portion The support of 28 prevents the lens of the microscope objective lens 16 from being adjusted too low, thereby preventing the lens of the microscope objective lens 16 from colliding with the object. When observing a batch object using the microscope device of the present invention, only the observation of the first object needs to be gradually focused, and other objects can be quickly focused by the positioning action of the support portion 28, and then can be observed by slightly adjusting the focus.

In addition, those skilled in the art can make other changes within the spirit of the invention, and all changes that are made according to the spirit of the invention are included in the scope of the invention.

100. . . Microscope device

12. . . Stage

14. . . Objective lens tube

16. . . Objective lens

18. . . eyepiece

20. . . Focusing device

twenty two. . . Anti-collision bar

twenty four. . . First fixed part

26. . . Second fixed part

28. . . Support

240. . . Unclosed ring

241. . . Fixed piece

242. . . Opening of the ring that is not closed

243. . . Screw hole

244,261. . . bolt

260. . . Columnar body

262. . . Through hole

280. . . Square end

281. . . Truncated tapered end

1 is a schematic view showing the structure of a microscope according to an embodiment of the present invention.

2 is a schematic structural view of a bumper on a microscope according to an embodiment of the present invention.

twenty four. . . First fixed part

26. . . Second fixed part

28. . . Support

240. . . Unclosed ring

241. . . Fixed piece

242. . . Opening of the ring that is not closed

243. . . Screw hole

244,261. . . bolt

260. . . Columnar body

262. . . Through hole

280. . . Square end

281. . . Truncated tapered end

Claims (9)

A microscope device comprising: a stage, an objective lens barrel, an objective lens, an eyepiece, a focusing device, and a bumper mounted on the objective lens barrel;
The anti-collision bar includes a first fixing portion, a second fixing portion fixedly coupled to the first fixing portion, and a supporting portion, wherein the supporting portion is strip-shaped for adjusting in a moving direction of the objective lens a height, the first fixing portion is sleeved on an outer circumferential surface of the objective lens barrel;
The second fixing portion includes a columnar body and a pressing device, the columnar body has a through hole, and the supporting portion passes through the through hole and moves in the through hole, the pressing device The side wall of the second fixing portion is placed and the support portion is pressed to fix the support portion in the through hole. The microscope device of claim 1, wherein the first fixing portion comprises an unclosed ring and a clamping device, and the unclosed ring is sleeved on the objective lens barrel. On the outer circumferential surface, the clamping device is fixed to the opening of the unclosed ring, and the clamping device fixes the unclosed ring to the objective lens barrel. The microscope device of claim 2, wherein the clamping device is two parallel fixing pieces, each of which is provided with a screw hole, and a screw hole on one of the fixing pieces The screw holes on the other fixing piece are opposite to each other, and the two screw holes are connected and locked by a bolt and a nut, so that the unclosed ring is fixed to the objective lens barrel. The microscope device of claim 2, wherein the clamping device is a two latch that can be engaged with each other. The microscope device according to claim 1, wherein the first fixing portion is directly welded and fixed to the objective lens barrel. The microscope device according to claim 1, wherein the second fixing portion has a rectangular parallelepiped shape. The microscope device of claim 6, wherein the pressing device is a bolt, and a threaded through hole is provided on one side of the second fixing portion, and the bolt is screwed into the threaded through hole. And pressing the support portion to fix the support portion in the through hole. The microscope device of claim 6, wherein the pressing device is a resilient piece, the elastic piece is placed on an inner side wall of the second fixing portion, and the supporting portion is pressed to make the The support portion is fixed in the through hole. The microscope apparatus of claim 1, wherein the support portion includes a frustoconical end, the frustoconical end facing the console.