CN113035673A - Electron bombardment imaging type photoelectric device - Google Patents
Electron bombardment imaging type photoelectric device Download PDFInfo
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- CN113035673A CN113035673A CN202110252433.6A CN202110252433A CN113035673A CN 113035673 A CN113035673 A CN 113035673A CN 202110252433 A CN202110252433 A CN 202110252433A CN 113035673 A CN113035673 A CN 113035673A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 28
- 238000009434 installation Methods 0.000 claims abstract description 38
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 238000003780 insertion Methods 0.000 claims description 14
- 230000037431 insertion Effects 0.000 claims description 14
- 230000005693 optoelectronics Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000007123 defense Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010894 electron beam technology Methods 0.000 description 13
- 230000003116 impacting effect Effects 0.000 description 3
- 206010034972 Photosensitivity reaction Diseases 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000036211 photosensitivity Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/86—Vessels; Containers; Vacuum locks
- H01J29/89—Optical or photographic arrangements structurally combined or co-operating with the vessel
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/26—Image pick-up tubes having an input of visible light and electric output
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
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- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
The invention discloses an electron bombardment imaging photoelectric device, relates to the technical field of photoelectric devices, and solves the problems that the existing imaging photoelectric device and an electron bombardment PSD (phase-sensitive detector) device do not have a timely active defense function and a better impact protection structure, cannot obtain better impact protection and has higher damage probability. An electron bombardment imaging type photoelectric device comprises an installation support frame, wherein the bottom of an installation tube is fixedly welded with the installation support frame, and an optical eyepiece is embedded in the front end section of the installation tube; two limiting rings are sleeved on the front end section of the mounting pipe in a sliding mode at intervals, and a rotating ring is sleeved on the two limiting rings in a rotating mode; the installation pipe comprises a rear cover plate, and the rear end of the installation pipe is slidably inserted and covered with the rear cover plate. The automatic tripping active defense function of the electron bombardment type PSD device under impact is matched with the shielding protection of a circle of shading inserted rods and a light transmission ring to be used together, so that a better impact protection effect can be realized.
Description
Technical Field
The invention relates to the technical field of photoelectric devices, in particular to an electron bombardment imaging type photoelectric device.
Background
The photoelectric imaging device is an electric vacuum imaging detection device, mainly composed of a photoelectric conversion component, an electron beam modulation component, an electron beam scanning component and an electron beam image display component, wherein the most representative is a stripe image converter. The main function of the image-variable tube photoelectric imaging device is to convert an optical signal emitted by a detection target into a space electron beam signal, the electron beam signal is accelerated and focused in an electron beam modulation component, and then the electron beam is scanned by an electron beam scanning component, so that electron beams generated at different moments move to different positions of an electron beam image display component, thereby realizing the space-time conversion of an optical image, and analyzing the intensity information and the like of the signal light signal at different moments and different space positions by acquiring data at different positions of the image.
For example, patent No. CN202010556150.6 discloses an electron bombardment imaging type photoelectric device and a high speed camera, the electron bombardment imaging type photoelectric device includes: the vacuum vessel is provided with an optical input window, and the vacuum vessel is internally provided with: the electron beam scanning device comprises a photocathode, an accelerating system, a modulating system, a scanning system and a potential equipotential region, and further comprises a semiconductor imaging system which is used for collecting and imaging the deflected electron beam and amplifying the image information of the electron beam with certain gain. The electron bombardment imaging type photoelectric device can realize the optical image enhancement function with certain magnification, can further improve the resolution ratio, the signal-to-noise ratio and other key parameters of the photoelectric imaging device, and can further reduce the volume and the weight of a high-speed camera taking the photoelectric imaging device as a core.
The light inlet quantity and the photosensitivity of the existing imaging type photoelectric device are mostly adjusted by adopting elements such as an electronic resistor, the manufacturing cost is higher although the precision is higher, the maintenance is not convenient, and the device can not be well suitable for matching with high-cost-performance equipment.
Disclosure of Invention
The invention aims to provide an electron bombardment imaging type photoelectric device, which solves the problems that the electron bombardment type PSD device provided by the background technology does not have a timely active defense function, does not have a better impact protection structure, cannot obtain better impact protection and has higher damage probability.
In order to achieve the purpose, the invention provides the following technical scheme: an electron bombardment imaging type photoelectric device comprises an installation support frame, wherein the bottom of an installation tube is fixedly welded with the installation support frame, and an optical eyepiece is embedded in the front end section of the installation tube; two limiting rings are sleeved on the front end section of the mounting pipe in a sliding mode at intervals, and a rotating ring is sleeved on the two limiting rings in a rotating mode; the mounting pipe comprises a rear cover plate, supporting frames and a positioning shaft, wherein the rear end of the mounting pipe is slidably inserted and covered with the rear cover plate, and the rear half section of the circumferential outer wall of the mounting pipe is welded with the supporting frames in an annular array manner; four insertion frames are inserted in the four supporting frames in a penetrating and inserting mode through spring pushing, and four longitudinal positioning shafts are welded on the pipe walls of the adjacent sides of the four supporting frames in an annular array supporting mode; a round electron bombardment type PSD device is inserted and installed in the rear half section of the installation tube; the electron bombardment type PSD device comprises a photoelectric cathode light receiving plate, a round photoelectric cathode light receiving plate is supported and installed in front of the electron bombardment type PSD device, and a light transmitting ring is supported and installed in the front space inside the installation tube at the position of the photoelectric cathode light receiving plate; the periphery of the inner side end face of the rear cover plate is circumferentially and externally provided with an annular array support welded with four cylindrical top shafts, and the cylindrical top shafts extend forwards and are inserted through an annular channel at intervals between the electron bombardment type PSD device and the installation pipe.
Preferably, the mounting pipe comprises pull rods, the circumferential end face of the rear cover plate is supported by four pull rods in an annular array manner, the four pull rods are attached to the circumferential outer wall of the mounting pipe in a sliding manner, and the tail ends of the four pull rods are respectively supported and welded with a trapezoidal top frame.
Preferably, the swivel includes holding ring and triangle kicking block, it is provided with the round friction strip to be annular array on the circumference outer wall of swivel, and the equidistance interval is provided with the round holding ring on the rear side annular end face of swivel, and the equidistance interval is provided with round triangle kicking block on the circumference inner wall of this swivel, and the inboard hypotenuse of round triangle kicking block is the arc structure.
Preferably, the installation pipe further comprises an inserted link, the inserted link penetrates through and is inserted into the circumferential outer wall of the rear half section of the installation pipe through spring pushing, and the inserted link is correspondingly and selectively inserted and matched with a circle of positioning rings.
Preferably, the inserting frame comprises a horizontal stress plate, the whole inserting frame is of a Chinese character 'shan' shaped structure, one side of the bottom of the inserting frame is welded with the horizontal stress plate, four rows of inserting shafts on the four inserting frames are correspondingly matched with four fixing strips on the circumferential outer wall of the electron bombardment type PSD device in a top inserting mode, and four trapezoidal top frames at the tail ends of the four pull rods are correspondingly contacted with inclined planes of the four horizontal stress plates in a top pushing mode.
Preferably, the light-transmitting ring comprises a shading inserted rod, a circle of shading inserted rod penetrates through and is inserted into the pipe wall between the two limiting rings on the upper half section of the installation pipe through spring pushing, and the head end section of the circle of shading inserted rod correspondingly penetrates through the light-transmitting ring.
Preferably, the cylindrical top shaft comprises a transparent circular plate, the front end of the cylindrical top shaft is welded with the transparent circular plate in a supporting mode, and the transparent circular plate is abutted and contacted with the back end face of the optical eyepiece.
Preferably, the tail end section of the shading inserted bar is protruded out of the installation tube, and the tail end convex section of the shading inserted bar is correspondingly abutted to contact with the arc-shaped bevel edge of the triangular ejecting block.
Compared with the prior art, the invention has the beneficial effects that:
1. when the photoelectric device is impacted, the four insertion frames can automatically slide upwards to loosen the electron bombardment type PSD device by utilizing impact force, so that the electron bombardment type PSD device is ensured to instantaneously loosen and slide backwards when being impacted to deal with violent impact force, the impact force is prevented from directly impacting the electron bombardment type PSD device again, and the impact damage probability of the electron bombardment type PSD device is greatly reduced;
2. the invention can synchronously rotate and inwardly push a circle of shading inserted rods through a circle of triangular top blocks, adjust the extension length of the shading inserted rods, shade and change the light inlet quantity, and realize the adjustment of the photosensitivity of the photoelectric device, so that the photoelectric device can be suitable for different application environments.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the rear three-dimensional structure of the present invention;
FIG. 3 is a schematic view of the internal three-dimensional structure of the half-section of the present invention;
FIG. 4 is a schematic diagram of the installation position of the electron bombardment type PSD device of the present invention;
FIG. 5 is a schematic view of a swivel structure according to the present invention;
FIG. 6 is a schematic view of the installation position of the light-transmitting ring of the present invention;
FIG. 7 is a schematic view of the structure of the insert frame of the present invention;
FIG. 8 is an enlarged view of portion A of FIG. 1 according to the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. mounting a support frame; 2. installing a pipe; 201. a rear cover plate; 202. a support frame; 203. a pull rod; 204. inserting a rod; 205. positioning the shaft; 3. rotating the ring; 301. a positioning ring; 302. a triangular top block; 4. an optical eyepiece; 5. inserting a frame; 501. a horizontal force-bearing plate; 6. electron bombardment type PSD devices; 601. a photocathode light-receiving plate; 7. a light transmitting ring; 701. a shading inserted link; 8. a cylindrical top shaft; 801. a transparent circular plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 8, an embodiment of the present invention includes: an electron bombardment imaging type photoelectric device comprises an installation support frame 1, wherein the bottom of an installation tube 2 is fixedly welded with the installation support frame 1, and an optical eyepiece 4 is embedded in the front end section of the installation tube 2; two limiting rings are sleeved on the front end section of the mounting pipe 2 in a sliding manner at intervals, and a rotating ring 3 is sleeved on the two limiting rings in a rotating manner; the mounting pipe 2 comprises a rear cover plate 201, supporting frames 202 and a positioning shaft 205, the rear end of the mounting pipe 2 is slidably inserted and covered with the rear cover plate 201, and the supporting frames 202 are welded on the rear half section of the circumferential outer wall of the mounting pipe 2 in an annular array mode; four insertion frames 5 are inserted in the four supporting frames 202 in a penetrating and inserting manner through spring pushing, and four longitudinal positioning shafts 205 are supported and welded on the pipe walls of the adjacent sides of the four supporting frames 202 in an annular array manner; a round electron bombardment type PSD device 6 is inserted and installed in the rear half section of the installation tube 2; the electron bombardment type PSD device 6 comprises a photoelectric cathode light receiving plate 601, a round photoelectric cathode light receiving plate 601 is supported and installed in front of the electron bombardment type PSD device 6, and a light transmitting ring 7 is supported and installed in the front space inside the installation tube 2 at the position of the photoelectric cathode light receiving plate 601; four cylindrical top shafts 8 are supported and welded on the circumferential outer ring of the end face of the inner side of the rear cover plate 201 in an annular array, and the cylindrical top shafts 8 extend forwards and are inserted through spaced annular channels between the electron bombardment type PSD devices 6 and the mounting tubes 2; the installation pipe 2 further comprises pull rods 203, the four pull rods 203 are supported on the circumferential end face of the rear cover plate 201 in an annular array mode, the four pull rods 203 are attached to the circumferential outer wall of the installation pipe 2 in a sliding mode, the tail ends of the four pull rods 203 are respectively supported and welded with a trapezoidal top frame, the rotating ring 3 comprises a positioning ring 301 and a triangular top block 302, a circle of friction strips are arranged on the circumferential outer wall of the rotating ring 3 in an annular array mode, a circle of positioning rings 301 are arranged on the rear side annular end face of the rotating ring 3 at equal intervals, a circle of triangular top blocks 302 are arranged on the circumferential inner wall of the rotating ring 3 at equal intervals, and the inner oblique edge of the circle of triangular top blocks 302 is of an arc-shaped structure; the installation tube 2 also comprises an insertion rod 204, the outer wall of the circumference of the rear half section of the installation tube 2 is pushed by a spring to penetrate and be inserted with one insertion rod 204, the insertion rod 204 is correspondingly and selectively inserted and matched with a circle of positioning rings 301, and the insertion rod 204 can be inserted and positioned with the rotary ring 3, so that the rotary ring 3 is kept in a shading use state of inward top insertion; the inserting frame 5 comprises a horizontal stress plate 501, the inserting frame 5 is of a herringbone structure integrally, one horizontal stress plate 501 is welded at the bottom of one side of the inserting frame in a hanging and supporting mode, four rows of inserting shafts on four inserting frames 5 are correspondingly matched with four fixing strips on the circumferential outer wall of the electron bombardment type PSD device 6 in a top inserting mode, four trapezoidal top frames at the tail ends of four pull rods 203 are correspondingly in top pushing contact with the inclined planes of the four horizontal stress plates 501, the electron bombardment type PSD devices 6 can be inserted and positioned in the installing pipe 2 by the four inserting frames 5, in addition, the four pull rods 203 can be pulled backwards and pushed to drive the four horizontal stress plates 501 to slide upwards and be pulled out through the four trapezoidal top frames, and the electron bombardment type PSD devices 6 are loosened; the light transmission ring 7 comprises a shading inserted rod 701, a circle of shading inserted rods 701 penetrates through and is inserted into the pipe wall between two limiting rings on the upper half section of the installation pipe 2 in a pushing mode through a spring, the head end section of the circle of shading inserted rods 701 correspondingly penetrates through the light transmission ring 7, and the light transmission quantity of shading light and the light receiving quantity of the photocathode light receiving plate 601 can be inserted into the circle of shading inserted rods 701.
Further, the top cylindrical shaft 8 comprises a transparent circular plate 801, the front end of the top cylindrical shaft 8 is supported and welded with one transparent circular plate 801, the transparent circular plate 801 is in abutting contact with the back end face of the optical eyepiece 4, when the optical eyepiece 4 is impacted and broken by the top stamp, the transparent circular plate 801 is pushed backwards by impact force, the transparent circular plate 801 can drive the back cover plate 201 and the four pull rods 203 to move together when sliding backwards, driving force is provided for the upward sliding and loosening of the four insertion frames 5, when the optoelectronic device is impacted, the four insertion frames 5 can automatically slide upwards and loosen the electron bombardment type PSD device 6 by utilizing impact force, the electron bombardment type PSD device 6 is ensured to be instantly loosened and slide backwards to deal with violent impact force when being impacted, the impact force is prevented from directly impacting the electron bombardment type PSD device 6, the impact damage probability of the electron bombardment type PSD device 6 is greatly reduced, the automatic tripping active defense function of the impact type PSD device 6 is matched with a circle of shading insertion rods 701, and the automatic tripping active Use with the sheltering from of printing opacity ring 7 and protect the work together and can realize better striking protective effect.
Furthermore, the tail end section of the circle of shading inserted rods 701 is arranged outside the installation pipe 2 in a protruding mode, the tail end protruding section of the circle of shading inserted rods 701 is correspondingly abutted and contacted with the arc-shaped bevel edge of the circle of triangular top blocks 302, the circle of triangular top block 302 can synchronously rotate to push a circle of shading inserted rods 701 inwards, the extending and inserting length of the shading inserted rods is adjusted, the light inlet quantity is shaded and changed, the photosensitive sensitivity of the photoelectric device is adjusted, the photoelectric device can be suitable for different application environments, in addition, a circle of shading inserted rods 701 and a light-transmitting ring 7 are arranged at the front end of the electron bombardment type PSD device 6, so that a certain auxiliary anti-collision function can be achieved, and further the circle of shading inserted rods 701 has the using effect of dual purposes.
The working principle is as follows: the inserting rod 204 can be inserted into the positioning swivel 3, so that a circle of the swivel 3 is kept in a shading use state of being inserted inwards in a jacking mode, the electron bombardment type PSD device 6 can be inserted and positioned in the installation pipe 2 by the four inserting frames 5, and in addition, the four pull rods 203 can be pulled backwards to push and pull the four horizontal stress plates 501 to slide upwards and be pulled out through the four trapezoidal top frames;
the circle of triangular top block 302 can synchronously rotate to push the circle of shading inserted rods 701 inwards, the extension length of the shading inserted rods is adjusted, the light inlet quantity is shielded and changed, the photosensitive sensitivity of the photoelectric device is adjusted, the photoelectric device can be suitable for different application environments, and in addition, the circle of shading inserted rods 701 and the light transmission ring 7 are arranged at the front end of the electron bombardment type PSD device 6, so that a certain auxiliary anti-collision function can be realized;
when the optical eyepiece 4 is put on the top stamp and is impacted and broken, the transparent circular plate 801 is pushed backwards by the impact force, the transparent circular plate 801 can drive the rear cover plate 201 and the four pull rods 203 to move together when sliding backwards, so as to provide driving force for the upward sliding and loosening of the four insertion frames 5, when the photoelectric device is impacted, the four insertion frames 5 can automatically slide upwards to loose the electron bombardment type PSD device 6 by utilizing impact force, so that the electron bombardment type PSD device 6 is ensured to instantaneously loosen and slide backwards to deal with violent impact force when being impacted, the impact force is prevented from directly impacting the electron bombardment type PSD device 6 again, and the impact damage probability of the electron bombardment type PSD device 6 is greatly reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. An electron bombardment imaging type photoelectric device, which is characterized in that: the device comprises a mounting support frame (1), wherein the bottom of the mounting pipe (2) is fixedly welded with the mounting support frame (1), and an optical eyepiece (4) is embedded in the front end section of the mounting pipe (2); two limiting rings are sleeved on the front end section of the mounting pipe (2) in a sliding mode at intervals, and a rotating ring (3) is sleeved on the two limiting rings in a rotating mode; the mounting pipe (2) comprises a rear cover plate (201), a supporting frame (202) and a positioning shaft (205), the rear end of the mounting pipe (2) is slidably inserted and covered with the rear cover plate (201), and the rear half section of the circumferential outer wall of the mounting pipe (2) is welded with the supporting frames (202) in an annular array mode; four insertion frames (5) are inserted in the four supporting frames (202) in a penetrating and inserting mode through spring pushing, and four longitudinal positioning shafts (205) are supported and welded on the pipe walls of the adjacent sides of the four supporting frames (202) in an annular array mode; a round electron bombardment type PSD device (6) is inserted and installed in the rear half section of the installation tube (2); the electron bombardment type PSD device (6) comprises a photoelectric cathode light receiving plate (601), a round photoelectric cathode light receiving plate (601) is supported and installed in front of the electron bombardment type PSD device (6), and a light transmitting ring (7) is supported and installed in the front space inside the installation tube (2) where the photoelectric cathode light receiving plate (601) is located; the circumference outer ring of rear shroud (201) medial surface is gone up to be annular array support welding and is had four places cylinder apical axis (8), and this cylinder apical axis (8) stretch forward and insert through the interval annular channel between electron bombardment type PSD device (6) and installation pipe (2).
2. An electron-bombarded imaging type optoelectronic device according to claim 1, wherein: the installation pipe (2) comprises a pull rod (203), the circumferential end face of the rear cover plate (201) is provided with four pull rods (203) in an annular array support mode, the four pull rods (203) are attached to the outer wall of the circumference of the installation pipe (2) in a sliding mode, and the tail ends of the four pull rods (203) are all supported and welded with a trapezoidal top frame.
3. An electron-bombarded imaging type optoelectronic device according to claim 1, wherein: swivel (3) are including holding ring (301) and triangle kicking block (302), it is provided with the round friction strip to be the annular array on the circumference outer wall of swivel (3), and equidistant interval is provided with round holding ring (301) on the rear side ring end face of swivel (3), and the equidistance interval is provided with round triangle kicking block (302) on the circumference inner wall of this swivel (3), and the inboard hypotenuse of round triangle kicking block (302) is the arc structure.
4. An electron-bombarded imaging type optoelectronic device according to claim 1, wherein: the mounting pipe (2) further comprises an insert rod (204), the outer wall of the circumference of the rear half section of the mounting pipe (2) is pushed by a spring to penetrate through and be inserted with the insert rod (204), and the insert rod (204) is correspondingly matched with a circle of positioning rings (301) in a selective inserting manner.
5. An electron-bombarded imaging type optoelectronic device according to claim 1, wherein: insert frame (5) including horizontal atress board (501), insert frame (5) whole be the chevron structure, and the welding of its one side bottom is hung and is propped horizontal atress board (501) of a department, and four rows of spiales on inserting frame (5) of four places correspond and insert the cooperation with the fixed strip top of four places on electron bombardment type PSD device (6) circumference outer wall, and the trapezoidal top frame correspondence of four places of pull rod (203) tail end pushes up the contact with horizontal atress board (501) inclined plane top of four places.
6. An electron-bombarded imaging type optoelectronic device according to claim 1, wherein: the light-transmitting ring (7) comprises a shading inserted rod (701), a circle of shading inserted rod (701) penetrates through and is inserted into the pipe wall between the two limiting rings on the upper half section of the mounting pipe (2) through spring pushing, and the head end section of the circle of shading inserted rod (701) correspondingly penetrates through the light-transmitting ring (7).
7. An electron-bombarded imaging type optoelectronic device according to claim 1, wherein: the cylindrical top shaft (8) comprises a transparent circular plate (801), the front end of the cylindrical top shaft (8) is supported and welded with the transparent circular plate (801), and the transparent circular plate (801) abuts against and contacts with the back end face of the optical eyepiece (4).
8. The electron-bombarded imaging type optoelectronic device according to claim 6, wherein: the tail end section of the shading inserted bar (701) is protruded to be arranged outside the installation pipe (2), and the tail end outward-protruding section of the shading inserted bar (701) is correspondingly abutted to and contacted with the arc-shaped bevel edge of the triangular ejecting block (302).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113485059A (en) * | 2021-07-07 | 2021-10-08 | 青岛金利天源智能科技有限公司 | Method and apparatus for ambient light rejection |
| CN113485059B (en) * | 2021-07-07 | 2022-09-02 | 济南最智慧科技有限公司 | Method and apparatus for ambient light rejection |
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