CN108982990B - Image intensifier tester - Google Patents
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- CN108982990B CN108982990B CN201810539643.1A CN201810539643A CN108982990B CN 108982990 B CN108982990 B CN 108982990B CN 201810539643 A CN201810539643 A CN 201810539643A CN 108982990 B CN108982990 B CN 108982990B
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention relates to an image intensifier tester, which comprises a mounting seat, an outer cover, a target plate projector, a clamping regulator, a light source, a microscope, an illuminometer and a brightness meter, wherein the mounting seat is provided with a positioning hole; the dustcoat, the target plate projecting apparatus, centre gripping regulator and microscope are all installed on the mount pad, target plate projecting apparatus and centre gripping regulator are located the dustcoat, be equipped with the cover door on the dustcoat, the light source interface connection of light source and target plate projecting apparatus, the centre gripping regulator is used for centre gripping image intensifier, and adjust the position of image intensifier, the projection export of target plate projecting apparatus sets up towards the income plain noodles of image intensifier, set up the observation mouth that sets up towards the play plain noodles of image intensifier on the dustcoat, microscopical objective stretches into in the dustcoat through observing the mouth, illuminometer and luminance meter all rotationally set up on the inner wall of dustcoat, the rotatable projection direction to the target plate projecting apparatus of illuminometer, the rotatable light-emitting direction to image intensifier of luminance meter. The invention has the technical effects of multiple functions, accurate measurement and compact structure.
Description
Technical Field
The invention relates to the technical field of electrical parameter testing of image intensifiers, in particular to an image intensifier tester.
Background
The existing instrument for testing the electrical parameters of the image intensifier can only measure a small part of parameters of the image intensifier generally, and has single function and low integration level.
Disclosure of Invention
The present invention is directed to provide an image intensifier tester, which can measure the in-axis resolution, the off-axis resolution and the brightness gain of the image intensifier, and has multiple functions.
The technical scheme for solving the technical problems is as follows: an image intensifier tester is provided, which comprises an image intensifier,
the device comprises a mounting seat, an outer cover, a target plate projector for generating a target plate image, a clamping regulator, a light source, a microscope, an illuminometer and a luminance meter;
the outer cover, the target plate projector, the clamping regulator and the microscope are all arranged on the mounting seat, the target plate projector and the clamping regulator are arranged in the outer cover, the microscope is arranged outside the outer cover, a cover door is arranged on the outer cover, the light source is connected with a light source interface light path of the target plate projector, the clamping regulator is used for clamping the image intensifier and regulating the position of the image intensifier, a projection outlet of the target plate projector faces to a light inlet face of the image intensifier and projects the target plate image to the image intensifier, an observation port arranged towards a light outlet face of the image intensifier is arranged on the outer cover, an objective lens of the microscope extends into the outer cover through the observation port and is used for observing the target plate image intensified by the image intensifier, and the illuminometer and the luminance meter are both rotatably arranged on the inner wall of the outer cover, the luminance meter can rotate to the projection direction of the target plate projector and is used for calibrating the illuminance of the light source, and the luminance meter can rotate to the light emitting direction of the image intensifier and is used for detecting the gain of the image intensifier.
The invention has the beneficial effects that: the target plate projector, the microscope, the illuminometer and the brightness meter are integrated into a whole, so that the test of various parameters of the in-axis resolution, the out-axis resolution and the brightness gain is realized, and meanwhile, the illuminometer and the brightness meter are rotatably arranged on the inner wall of the outer cover, so that the test of the brightness gain and the test of the in-axis resolution and the out-axis resolution can be carried out in sequence without mutual influence. The clamping adjusting assembly is further arranged to fix the image intensifier and adjust the position of the image intensifier, so that the electric parameters of the image intensifier can be conveniently tested.
On the basis of the technical scheme, the invention can be further improved as follows:
further: the target plate projector comprises a projection base, a sliding cover, a resolution target plate, a lens cone and a projection lens;
the projection base is installed on the installation base, an installation groove is formed in the projection base, the sliding cover is slidably arranged on the installation groove in a covering mode, a first projection hole and a second projection hole which are communicated with the installation groove are formed in the projection base along the light path direction of the light source respectively, the first projection hole and the second projection hole are located on the same straight line, the first projection hole and the second projection hole are located on two sides of the installation groove respectively, a notch is formed in one end, facing the installation groove, of the first projection hole, the resolution target plate is installed in the notch, and a light source interface is arranged at one end, away from the installation groove, of the first projection hole; the lens cone penetrates through the second projection hole, the projection lens is mounted at one end, far away from the mounting groove, of the second projection hole and is connected with the lens cone, and one end, far away from the lens cone, of the projection lens faces the light incident surface of the image intensifier.
The beneficial effects of the further scheme are as follows: the target plate projector is used for generating a target plate image for testing, irradiating the resolution target plate through the light source to form a target plate image, and then projecting the target plate image to the image intensifier through the lens cone and the projection lens, so that the image intensifier can conveniently intensify the target plate image.
Further: the clamping adjuster comprises a clamping assembly and an adjusting assembly, wherein the adjusting assembly comprises a front limiting plate, a rear limiting plate, a guide rail, a first sliding seat, a second sliding seat, a front adjusting rod, a rear adjusting rod, a left adjusting rod, a right adjusting rod and a locking rod;
the front limiting plate and the rear limiting plate are arranged on the mounting seat at intervals, the guide rail is connected between the front limiting plate and the rear limiting plate along the projection direction of the target plate projector, a sliding hole is formed in the first sliding seat, the first sliding seat is sleeved on the guide rail through the sliding hole and can slide along the guide rail, and one end of the locking rod penetrates through the first sliding seat and extends into the sliding hole and is used for locking the first sliding seat on the guide rail; the second sliding seat is connected to the first sliding seat in a sliding mode along the left-right direction, the first sliding seat is connected with an installation block, and one end of the left adjusting rod and one end of the right adjusting rod penetrate through the installation block and are in transmission connection with the second sliding seat; the clamping assembly can be installed on the second sliding seat in a sliding mode in the front-back direction, the front limiting plate is connected with an installation plate, and one end of the front-back adjusting rod penetrates through the installation plate and is in transmission connection with the clamping assembly.
The beneficial effects of the further scheme are as follows: the clamping adjuster is used for clamping the image intensifier and adjusting the position of the image intensifier, the first sliding seat is used for roughly adjusting the front and back positions of the image intensifier, the front and back adjusting rods are used for finely adjusting the front and back positions of the image intensifier, and the left and right adjusting rods are used for adjusting the left and right positions of the image intensifier.
Further: the clamping assembly comprises a clamping seat, two clamping blocks and a clamping adjusting rod, the clamping seat can be installed on the second sliding seat in a sliding mode along the direction of the guide rail and can move along with the second sliding seat, the two clamping blocks extend into the clamping seat at the lower ends and the two clamping grooves of the V-shaped clamping blocks are formed in the clamping surfaces of the clamping blocks, and the clamping adjusting rod extends into the clamping seat and penetrates through the two clamping blocks at the lower ends and is used for adjusting the distance between the two clamping blocks.
The beneficial effects of the further scheme are as follows: the clamping assembly is used for clamping and fixing the image intensifier, the V-shaped clamping groove is beneficial to stable clamping of the image intensifier, and the distance between the two clamping blocks is adjusted through the clamping adjusting rod, so that the clamping assembly can be suitable for image intensifiers of different types.
Further: the microscope includes objective, eyepiece and observation base, observe the pedestal mounting in on the mount pad, objective and eyepiece set up respectively in observe the upper end of base, and be located observe the upper end both sides of base, objective with the coaxial setting of eyepiece, objective with the eyepiece is connected, just objective with the eyepiece junction cover is equipped with the lens hood.
The beneficial effects of the further scheme are as follows: the light shield is used for preventing the interference of external stray light to the observation result.
Further: be connected with the regulation pole on the inner wall of dustcoat, it is located to adjust the pole one side of centre gripping regulator, illuminometer and luminance meter all overlap and locate adjust on the pole, and all can wind adjust the pole and rotate, the illuminometer can wind adjust the pole and rotate extremely the projection direction of target plate projector, the luminance meter can wind adjust the pole and rotate extremely the light-emitting direction of image intensifier.
The beneficial effects of the further scheme are as follows: realize the rotation of illuminometer and luminance meter through adjusting the pole for illuminometer and luminance meter can test illuminance and luminance, can rotate to other positions after testing moreover, make things convenient for the microscope to test resolution ratio.
Further: be connected with the regulation pole on the inner wall of dustcoat, it is located to adjust the pole one side of centre gripping regulator, illuminometer and luminance meter all overlap and locate adjust on the pole, and all can wind adjust the pole and rotate, the illuminometer can wind adjust the pole and rotate extremely the projection direction of target plate projector, the luminance meter can wind adjust the pole and rotate extremely the light-emitting direction of image intensifier.
The beneficial effects of the further scheme are as follows: the LED light source is small in size, so that the whole tester is compact in structure.
Further: the light source further comprises an integrating sphere light source, the integrating sphere light source is located outside the outer cover, a preformed hole is formed in a light source interface, close to the target plate projector, of the outer cover, and a light outlet port of the integrating sphere light source penetrates through the preformed hole to be detachably connected with the light source interface of the target plate projector.
The beneficial effects of the further scheme are as follows: two different light sources are provided in order to meet different light source requirements.
Further: the image intensifier tester also comprises a light shielding plate used for shielding the reserved hole when the integrating sphere light source is detached, and the light shielding plate is detachably connected with the outer cover.
The beneficial effects of the further scheme are as follows: when the LED light source is selected for testing, the integrating sphere light source can be detached, and the reserved hole is blocked by the light shielding plate, so that the reserved hole is prevented from influencing the testing precision.
Further: the mounting base is supported on the ground through a plurality of supporting legs, wherein at least one supporting leg is a telescopic supporting leg.
The beneficial effects of the further scheme are as follows: the mounting seat can be stably supported on the unstable ground through the telescopic supporting legs.
Drawings
FIG. 1 is a schematic structural diagram of an image intensifier tester provided by the present invention;
FIG. 2 is a schematic diagram of a target board projector of an image intensifier tester provided by the present invention;
FIG. 3 is a schematic view of a clamping adjuster of an image intensifier tester according to the present invention;
fig. 4 is a schematic structural diagram of a microscope of an image intensifier tester provided by the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a mounting seat, 11, a supporting foot, 2, an outer cover, 21, a cover door, 3, a target plate projector, 31, a projection base, 311, a mounting groove, 32, a sliding cover, 33, a resolution target plate, 34, a projection lens, 4, a clamping adjuster, 410, a front limiting plate, 411, a rear limiting plate, 412, a guide rail, 413, a first sliding seat, 414, a second sliding seat, 415, a front and rear adjusting rod, 416, a left and right adjusting rod, 417, a locking rod, 418, a mounting plate, 419, a mounting block, 421, a clamping seat, 422, a clamping block, 423, a clamping adjusting rod, 424, a clamping groove, 51, an LED light source, 52, an integrating sphere light source, 6, a microscope, 61, an objective lens, 611, a shading cover, 62, an eyepiece, 63, an observation base, 71, an illuminometer, 72, a brightness meter, 8 and an image intensifier.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
The present invention will be described with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides an image intensifier tester, hereinafter referred to as a tester, which includes a mounting base 1, a housing 2, a target board projector 3 for generating a target board image, a holding regulator 4, a light source, a microscope 6, an illuminometer 71 and a luminance meter 72;
the outer cover 2, the target plate projector 3, the clamping adjuster 4 and the microscope 6 are all installed on the installation base 1, the target plate projector 3 and the clamping adjuster 4 are installed in the outer cover 2, the microscope 6 is installed outside the outer cover 2, a cover door 21 is installed on the outer cover 2, the light source is connected with a light source interface light path of the target plate projector 3, the clamping adjuster 4 is used for clamping the image intensifier 8 and adjusting the position of the image intensifier 8, a projection outlet of the target plate projector 3 is arranged towards a light inlet surface of the image intensifier 8 and projects the target plate image to the image intensifier 8, an observation port arranged towards a light outlet surface of the image intensifier 8 is arranged on the outer cover 2, an objective lens of the microscope 6 extends into the outer cover 2 through the observation port and is used for observing the target plate image intensified by the image intensifier 8, the illuminometer 71 and the luminance meter 72 are both rotatably arranged on the inner wall of the outer cover 2, the illuminometer 71 can rotate to the projection direction of the target plate projector 3 and is used for calibrating the illuminance of the light source, and the luminance meter 72 can rotate to the light emitting direction of the image intensifier 8 and is used for detecting the gain of the image intensifier 8.
The image intensifier tester provided by the invention has the following working process: the tester is placed on a flat working table surface, a mains supply is connected into the tester, the power switch is pressed down, and the tester is powered on to enter a standby state. The cover door 21 is opened, the light source is turned on, the clamping adjuster 4 is adjusted to enable the image intensifier 8 to be coaxial with the projection lens of the target plate projector 3, and the cover door 21 is closed. The microscope 6 is adjusted so that the target plate image appears in the middle of the field of view of the microscope 6. Then the cover door 21 is opened, the illuminometer 71 is rotated to the projection direction of the target plate projector 3, so that the probe of the illuminometer 71 is coaxial with the projection lens of the target plate projector 3, the cover door 21 is closed, the size of the light source is adjusted, the reading of the illuminometer 71 is observed, and the light intensity of the light source is adjusted to the intensity required by the test. Specifically, the illuminometer 71 in this embodiment is implemented by a KLL-04 type wide-range illuminometer. The cover door 21 is opened, the illuminometer 71 is turned back to the original position, the image intensifier 8 is clamped on the clamping adjuster 4 so that the image intensifier 8 is coaxial with the target plate projector, and the cover door 21 is closed. And electrifying the image intensifier 8, observing the light emergent surface of the image intensifier 8 through the microscope 6, adjusting the microscope 6 to ensure that the observed target plate image is most clear, recording the numerical value of the resolvable highest resolution, and disconnecting the power supply of the image intensifier 8 after recording. The cover door 21 is opened, the luminance meter 72 is rotated to the light emitting direction of the image intensifier 8, so that the probe of the luminance meter 72, the image intensifier 8 and the target plate projector 3 are coaxial, and the cover door 21 is closed. The image intensifier 8 is powered on when the test is started, the brightness value of the brightness meter 72 is read out, the gain of the image intensifier 8 is calculated, the power supply of the image intensifier 8 is turned off, and the test is finished. After the test is completed, the cover door 21 is opened and the luminance meter 72 is turned back to the original position, the image intensifier 8 is removed, the cover door is closed, and all power supplies are turned off.
And (3) sliding the sliding cover, moving the sliding cover to the left end after replacing the resolution target plate, and adjusting the image tube clamping group to enable the image intensifier and the lens group in the low-light-level resolution projection group to be coaxial, as shown in figure 1.
The locking hand wheel of the image tube clamping group is loosened and is contacted with the back baffle plate, the hand wheel is locked, the light incident surface of the image intensifier is flush with the end surface of the V-shaped block, and the copper nut is positioned in the middle position before and after adjustment
During testing, it should be noted that the image intensifier 8 can be powered on only when the cover door is closed, and the light source is ensured to be in a closed state when the image intensifier 8 is clamped, replaced and debugged. In the process of detecting the image intensifier 8, the cover door 21 must be locked, so that the inside of the outer cover 2 is in a sealed and light-tight state.
The tester should be placed in a dry, clean and ventilated room, and is preferably used in an environment with a constant temperature of 10 ℃ to 25 ℃ and a humidity of less than or equal to 60%. The tester surfaces should be kept clean from time to time, and the rails, gears, threads and other friction parts should be lubricated from time to time. The surface of the optical part should be kept clean, so as to prevent oil stain contact and avoid touching the optical part by hands. If there is dust or dirt, the dust is lightly brushed off by a brushing pen and then wiped by a lint, or the cotton is wiped by a mixture of ether and alcohol after being dipped in the wiping cotton. After the tester is used, the cover door is locked, and various accessories are put into the accessory box.
The image intensifier tester provided by the invention can realize the test of various electrical parameters of the image intensifier, and has the advantages of accurate measurement result, compact structure and convenience in operation.
Preferably, as shown in fig. 2, the target plate projector 3 includes a projection base 31, a sliding cover 32, a resolution target plate 33, a lens barrel, and a projection lens 34;
the projection base 31 is installed on the installation base 1, an installation groove 311 is formed in the projection base 31, the sliding cover 32 is slidably covered on the installation groove 311, a first projection hole and a second projection hole which are communicated with the installation groove 311 are respectively formed in the projection base 31 along the light path direction of the light source, the first projection hole and the second projection hole are located on the same straight line, the first projection hole and the second projection hole are respectively located on two sides of the installation groove 311, a notch is formed in one end, facing the installation groove 311, of the first projection hole, the resolution target plate 33 is installed in the notch, and a light source interface is formed in one end, away from the installation groove 311, of the first projection hole; the lens barrel penetrates through the second projection hole, the projection lens 34 is mounted at one end, far away from the mounting groove 311, of the second projection hole and is connected with the lens barrel, and one end, far away from the lens barrel, of the projection lens 34 faces the light incident surface of the image intensifier 8.
Specifically, the mounting groove 311 is provided with a chute, the sliding cover is provided with a convex edge matched with the chute, and the convex edge is clamped in the chute and can slide along the chute. When the sliding cover 32 slides to the position right above the installation groove 311, the sliding cover 32 covers the installation groove 311 to form a closed space, and when the sliding cover 32 slides out of the range of the installation groove 311, the sliding cover can extend into the installation groove 311 to install or disassemble the resolution target plate 33. The light source is used as a light source base during detection, and the resolution target plate 33 is projected onto the light incident surface of the image intensifier 8 through the lens barrel and the projection lens 34, so as to provide an optical irradiation source for detecting the resolution and gain of the image intensifier 8. The image intensifier 8 intensifies the target plate image, and the microscope 6 tests the resolution of the image intensifier 8 through the target plate image. The resolution target plate 33 is detachably mounted in the notch, so that the resolution target plate 33 can be replaced conveniently.
Preferably, as shown in fig. 3, the clamping adjuster 4 includes a clamping assembly and an adjusting assembly, the adjusting assembly includes a front limiting plate 410, a rear limiting plate 411, a guide rail 412, a first sliding seat 413, a second sliding seat 414, a front and rear adjusting rod 415, a left and right adjusting rod 416 and a locking rod 417;
the front limiting plate 410 and the rear limiting plate 411 are mounted on the mounting base 1 at intervals, the guide rail 412 is connected between the front limiting plate 410 and the rear limiting plate 411 along the projection direction of the target plate projector 3, a sliding hole is formed in the first sliding seat 413, the first sliding seat 413 is sleeved on the guide rail 412 through the sliding hole and can slide along the guide rail 412, and one end of the locking rod 417 is inserted into the first sliding seat 413 and extends into the sliding hole and is used for locking the first sliding seat 413 on the guide rail 412; the second sliding seat 414 is connected to the first sliding seat 413 in a left-right sliding manner, the first sliding seat 413 is connected to an installation block 419, and one end of the left-right adjusting rod 416 penetrates through the installation block 419 and is in transmission connection with the second sliding seat 414; the clamping assembly is slidably mounted on the second sliding base 414 along a front-back direction, a mounting plate 418 is connected to the front limiting plate 410, and one end of the front-back adjusting rod 415 penetrates through the mounting plate 418 and is in transmission connection with the clamping assembly.
In the adjusting assembly, the first sliding base 413 can slide on the guide rail 412 to realize coarse adjustment of the front and rear positions of the image intensifier 8, after the coarse adjustment is completed, the first sliding base 413 is locked on the guide rail 412 through the locking rod 417, then the front and rear positions of the image intensifier 8 are finely adjusted through the front and rear adjusting rods 415, and the left and right positions of the image intensifier 8 are adjusted through the left and right adjusting rods 416, so that the image intensifier 8 can receive the target plate image projected by the target plate projector 3.
Specifically, the front-back direction refers to the projection direction of the target plate projector 3, the left-right direction refers to the vertical direction of the projection direction of the target plate projector 3, and the front-back adjustment lever 415 and the left-right adjustment lever 416 can be implemented by using the prior art, for example, by using a ball spline pair. The left and right adjustment rods 416 may be disposed in the left and right directions, and at this time, the left and right adjustment rods 416 may be directly connected to the second slider 414. In order to save space, the left and right adjusting rods 416 can also be arranged along the front and back direction, at this time, the left and right adjusting rods 416 can be in transmission connection with the second sliding seat 414 through bevel gears, and the direction of thrust of the left and right adjusting rods 416 is changed through the bevel gears, so that the left and right movement of the second sliding seat 414 is realized. The front and rear adjusting rods 415 can be directly connected with the clamping assembly, and also can be connected with the clamping assembly through bevel gears, which can be realized by the prior art and are not described in detail herein.
Preferably, as shown in fig. 3, the clamping assembly includes a clamping seat 421, two clamping blocks 422, and a clamping adjusting rod 423, the clamping seat 421 is slidably mounted on the second sliding seat 414 along the direction of the guide rail 412, and can move along with the second sliding seat 414, the lower ends of the two clamping blocks 422 both extend into the clamping seat 421, V-shaped clamping grooves 424 are respectively formed on the clamping surfaces of the two clamping blocks 422, and the clamping adjusting rod 423 extends into the clamping seat 421 and passes through the lower ends of the two clamping blocks 422, and is used for adjusting the distance between the two clamping blocks 422.
The distance between the two clamping blocks 422 is adjusted by the clamping adjusting rod, so that the clamping assembly can clamp the image intensifiers 8 of different models and sizes. The clamping surfaces of the clamping blocks 422, i.e. the surfaces of the two clamping blocks 422 opposite to each other, are mostly cylindrical, and the V-shaped clamping grooves 424 facilitate stable clamping of the image intensifier 8.
Preferably, as shown in fig. 4, the microscope 6 includes an objective 61, an eyepiece 62 and an observation base 63, the observation base 63 is installed on the installation base 1, the objective 61 and the eyepiece 62 are respectively arranged on the upper end of the observation base 63 and are located on two sides of the upper end of the observation base 63, the objective 61 is coaxially arranged with the eyepiece 62, the objective 61 is connected with the eyepiece 62, and the joint of the objective 61 and the eyepiece 62 is sleeved with a light shield 611.
The microscope 6 is used for observing the target plate image enhanced by the image enhancer 8 and detecting the resolution of the image enhancer 8, and the light shield 611 is used for preventing the interference of external stray light to the observation result.
Specifically, the objective lens 61 is an ultra-long working distance microscope objective lens group, and the observation base 63 includes a three-degree-of-freedom moving assembly for realizing the lifting, front-back and left-right position adjustment of the objective lens 61 and the eyepiece lens 62 so as to realize the observation position and definition adjustment when detecting the resolution of the image tube. The existing microscope generally has a position adjusting function, and the observation base 63 of the present invention is realized by adopting the existing technology, which is not described herein again.
Preferably, the inner wall of the outer cover 2 is connected with an adjusting rod, the adjusting rod is located on one side of the clamping adjuster 4, the illuminometer 71 and the luminance meter 72 are sleeved on the adjusting rod and can rotate around the adjusting rod, the illuminometer 71 can rotate around the adjusting rod to the projection direction of the target plate projector 3, and the luminance meter 72 can rotate around the adjusting rod to the light-emitting direction of the image intensifier 8. .
The regulation pole is not shown in the figure, and this embodiment realizes the rotation of illuminometer 71 and luminance meter 72 through adjusting the pole for illuminance meter 71 can test the illuminance, and luminance meter 72 can test luminance, can rotate to other positions after testing moreover, makes things convenient for microscope 6 to test resolution ratio, thereby makes the tester realize the test of multiple different parameters.
Preferably, as shown in fig. 1, the light source includes an LED light source 1, the LED light source 1 is located in the housing 2, and the LED light source 1 is detachably connected to the light source interface of the target board projector 3.
The LED light source is small in size and convenient to install in the outer cover, so that the overall structure of the tester is more compact. Specifically, the tester also comprises a brightness adjusting knob, the brightness adjusting knob is rotationally and electrically connected with the LED light source through a brightness adjusting circuit, the brightness adjusting circuit is electrically connected with the LED ammeter, the brightness of the LED lamp is displayed through the LED ammeter, and a user can conveniently and accurately and quickly adjust the brightness of the LED light source.
Preferably, as shown in fig. 1, the light source further includes an integrating sphere light source 2, the integrating sphere light source 2 is located outside the outer cover 2, a preformed hole is opened at a light source interface of the outer cover 2 close to the target plate projector 3, and a light outlet port of the integrating sphere light source 2 passes through the preformed hole to be detachably connected with the light source interface of the target plate projector 3.
An integrating sphere light source 2 is additionally arranged to provide different light source selections for customers.
Preferably, the device further comprises a light shielding plate used for shielding the reserved hole when the integrating sphere light source 2 is removed, and the light shielding plate is detachably connected with the outer cover 2.
The light shielding plate is not shown in the figure, specifically, the light shielding plate is made of opaque material in the present invention, and the detachable connection between the light shielding plate and the outer cover 2 can be realized by using the prior art, such as a snap connection, a threaded connection, etc.
LED light source 1 and integrating sphere light source 2 supply the user to choose for use according to different demands, when the user chooses for use LED light source 1 to test, can pull down integrating sphere light source 2, then cover the preformed hole through the light screen, provide a stable test environment for the test of image intensifier, avoid external light to influence the measuring accuracy.
Preferably, as shown in fig. 1, the mounting base 1 is supported on the ground by a plurality of supporting feet 11, wherein at least one of the supporting feet 11 is a telescopic supporting foot.
The telescopic supporting legs are adapted to the ground through adjusting the height, so that the mounting base 1 can be stably supported on the ground when being arranged on the smooth or uneven ground, and a stable testing platform is provided for the image intensifier tester.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. An image intensifier tester is characterized by comprising a mounting base (1), an outer cover (2), a target plate projector (3) for generating a target plate image, a clamping adjuster (4), a light source, a microscope (6), an illuminometer (71) and a brightness meter (72);
the outer cover (2), the target plate projector (3), the clamping regulator (4) and the microscope (6) are all installed on the installation seat (1), the target plate projector (3) and the clamping regulator (4) are arranged in the outer cover (2), the microscope (6) is arranged outside the outer cover (2), a cover door (21) is arranged on the outer cover (2), the light source is connected with a light source interface light path of the target plate projector (3), the clamping regulator (4) is used for clamping the image intensifier (8) and regulating the position of the image intensifier (8), a projection outlet of the target plate projector (3) faces to a light inlet surface of the image intensifier (8) and projects the target plate image to the image intensifier (8), and an observation hole arranged towards a light outlet surface of the image intensifier (8) is formed in the outer cover (2), an objective lens of the microscope (6) extends into the outer cover (2) through the observation port and is used for observing a target plate image enhanced by the image enhancer (8), the illuminometer (71) and the luminance meter (72) are both rotatably arranged on the inner wall of the outer cover (2), the illuminometer (71) can rotate to the projection direction of the target plate projector (3) and is used for calibrating the illuminance of the light source, and the luminance meter (72) can rotate to the light emitting direction of the image enhancer (8) and is used for detecting the gain of the image enhancer (8);
the clamping adjuster (4) comprises a clamping assembly and an adjusting assembly, wherein the adjusting assembly comprises a front limiting plate (410), a rear limiting plate (411), a guide rail (412), a first sliding seat (413), a second sliding seat (414), a front and rear adjusting rod (415), a left and right adjusting rod (416) and a locking rod (417);
the front limiting plate (410) and the rear limiting plate (411) are mounted on the mounting base (1) at intervals, the guide rail (412) is connected between the front limiting plate (410) and the rear limiting plate (411) along the projection direction of the target plate projector (3), a sliding hole is formed in the first sliding seat (413), the first sliding seat (413) is sleeved on the guide rail (412) through the sliding hole and can slide along the guide rail (412), one end of the locking rod (417) penetrates through the first sliding seat (413) and extends into the sliding hole, and the locking rod is used for locking the first sliding seat (413) on the guide rail (412); the second sliding seat (414) is connected to the first sliding seat (413) in a left-right sliding mode, a mounting block (419) is connected to the first sliding seat (413), and one end of the left-right adjusting rod (416) penetrates through the mounting block (419) and is in transmission connection with the second sliding seat (414); the clamping assembly can be installed on the second sliding seat (414) in a sliding mode along the front-back direction, a mounting plate (418) is connected to the front limiting plate (410), and one end of the front-back adjusting rod (415) penetrates through the mounting plate (418) and is in transmission connection with the clamping assembly.
2. The image intensifier tester according to claim 1, wherein the target plate projector (3) comprises a projection base (31), a slide cover (32), a resolution target plate (33), a lens barrel and a projection lens (34);
the projection base (31) is installed on the installation base (1), an installation groove (311) is formed in the projection base (31), the sliding cover (32) is slidably arranged on the installation groove (311), a first projection hole and a second projection hole which are communicated with the installation groove (311) are formed in the projection base (31) along the light path direction of the light source respectively, the first projection hole and the second projection hole are located on the same straight line and located on two sides of the installation groove (311), a notch is formed in one end, facing the installation groove (311), of the first projection hole, the resolution target plate (33) is installed in the notch, and a light source interface is formed in one end, away from the installation groove (311), of the first projection hole; the lens cone penetrates through the second projection hole, the projection lens (34) is installed at one end, far away from the installation groove (311), of the second projection hole and is connected with the lens cone, and one end, far away from the lens cone, of the projection lens (34) faces the light inlet face of the image intensifier (8).
3. The image intensifier tester according to claim 1, wherein the clamping assembly comprises a clamping seat (421), two clamping blocks (422) and a clamping adjusting rod (423), the clamping seat (421) is slidably mounted on the second sliding base (414) along the direction of the guide rail (412) and can move along with the second sliding base (414), the lower ends of the two clamping blocks (422) extend into the clamping seat (421), the clamping surfaces of the two clamping blocks (422) are respectively provided with a V-shaped clamping groove (424), and the clamping adjusting rod (423) extends into the clamping seat (421) and passes through the lower ends of the two clamping blocks (422) for adjusting the distance between the two clamping blocks (422).
4. The image intensifier tester as recited in claim 1, wherein the microscope (6) comprises an objective lens (61), an eyepiece (62) and an observation base (63), the observation base (63) is mounted on the mounting base (1), the objective lens (61) and the eyepiece (62) are respectively arranged at the upper end of the observation base (63) and are positioned at two sides of the upper end of the observation base (63), the objective lens (61) and the eyepiece (62) are coaxially arranged, the objective lens (61) is connected with the eyepiece (62), and a light shield (611) is sleeved at the joint of the objective lens (61) and the eyepiece (62).
5. The image intensifier tester as recited in claim 1, wherein an adjusting lever is connected to an inner wall of the housing (2), the adjusting lever is located at one side of the clamping adjuster (4), the illuminometer (71) and the luminance meter (72) are both sleeved on the adjusting lever and can rotate around the adjusting lever, the illuminometer (71) can rotate around the adjusting lever to the projection direction of the target plate projector (3), and the luminance meter (72) can rotate around the adjusting lever to the light emitting direction of the image intensifier (8).
6. The image intensifier tester according to claim 1, characterised in that the light source comprises an LED light source (51), the LED light source (51) being located inside the housing (2), the LED light source (51) being detachably connected to the light source interface of the target plate projector (3).
7. The image intensifier tester as recited in claim 6, wherein the light source further comprises an integrating sphere light source (52), the integrating sphere light source (52) is located outside the housing (2), a reserved hole is opened at a light source interface of the housing (2) close to the target plate projector (3), and a light outlet port of the integrating sphere light source (52) passes through the reserved hole to be detachably connected with the light source interface of the target plate projector (3).
8. The image intensifier tester as recited in claim 7, further comprising a light blocking plate for blocking the prepared hole when the integrating sphere light source (52) is removed, the light blocking plate being detachably connected to the housing (2).
9. The image intensifier tester according to any of claims 1 to 8, characterised in that the mounting base (1) is supported on the ground by a plurality of support feet (11), at least one of which (11) is a telescopic support foot.
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| CN201810539643.1A CN108982990B (en) | 2018-05-30 | 2018-05-30 | Image intensifier tester |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810539643.1A CN108982990B (en) | 2018-05-30 | 2018-05-30 | Image intensifier tester |
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| CN108982990A CN108982990A (en) | 2018-12-11 |
| CN108982990B true CN108982990B (en) | 2020-12-04 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110149506A (en) * | 2019-06-28 | 2019-08-20 | 浙江水晶光电科技股份有限公司 | Image projection detection device and image projection detection method |
| CN113375908B (en) * | 2021-05-26 | 2022-09-23 | 北方夜视技术股份有限公司 | Dark box system for automatic test of low-light-level image intensifier |
| CN113432839B (en) * | 2021-06-09 | 2022-09-16 | 北方夜视技术股份有限公司 | System and method for comprehensively testing image quality of low-light-level image intensifier |
| CN114770067B (en) * | 2022-06-21 | 2022-09-02 | 昆明昆科测控技术有限公司 | Equipment suitable for picture tube and sleeve automatic assembly |
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