JP2017121061A - Image conversion apparatus and imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image conversion apparatus for event extraction where desired delay etc. can accurately and easily be set.SOLUTION: An image conversion part 33 comprises: an image detection part 33a for detecting an image; an image output part 33b capable of displaying the image detected by the image detection part 33a; and a display control part 33c for event extraction which, in generating an output image at the image output part 33b on the basis of the image detected by the image detection part 33a, performs at least one of image processing to adjust the output image with a temporal element and image processing to adjust the output image with a positional element.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an image conversion device for event extraction that performs processing such as a predetermined delay and transmits an image, and more particularly to an image conversion device used in an imaging device that can detect and record irregularly occurring events at high speed. The present invention also relates to an imaging apparatus incorporating the image conversion apparatus.

  An event to be imaged is converted into a fluorescent image, and the fluorescence image is distributed to two fluorescent images by the light distribution unit, and the shutter signal for the imaging unit that captures the other fluorescent image is used. As a result, there has been proposed an optical distribution type imaging device that selectively images an event to be imaged (see Patent Document 1). The imaging apparatus of Patent Document 1 is provided with a delay mechanism that appropriately delays the timing at which one of the distributed fluorescent images is input to the electronic multiplier (MCP) of the imaging unit. Specifically, in the imaging apparatus of Patent Document 1, a delay time is set using a phosphor in an image intensifier tube constituting a delay mechanism. At this time, the trigger timing based on the shutter signal is adjusted according to the afterglow characteristics of the fluorescence, but it is not easy to set and adjust the exposure time. Can occur. That is, particularly when weak and high-speed events that are buried in the background are extracted, a sufficient judgment time for trigger output is required, and a sufficient delay time for full-scale observation needs to be ensured. For this reason, as described above, the afterglow characteristic of the phosphor is used, but the phosphor selection range is narrow and there is no freedom of adjustment of the delay time, resulting in waveform disturbance in the afterglow, It is not easy to obtain a precise trigger signal.

  As an astronomical telescope technique, luminance information and color information are acquired from images acquired by imaging one of two branched images with two types of image sensors, and image processing is performed from these image information. Some display the processed image on a display or the like (see Patent Document 2). In the case of the technique disclosed in Patent Document 2, no consideration is given to delay display that enables a desired delay time to be set on the image display side. Further, the apparatus of Patent Document 2 does not have a function that enables high-speed trigger imaging.

JP 2004-207980 A JP 2002-341256 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide an event extraction image conversion device that can easily set a desired delay and the like with high accuracy and an imaging device incorporating the image device.

  In order to solve the above problems, an image conversion apparatus according to the present invention is based on an image detection unit that detects an image, an image output unit that can display an image detected by the image detection unit, and an image detected by the image detection unit. When generating an output image in the image output unit, an event extraction display control unit that performs at least one of image processing adjusted by a temporal element and image processing adjusted by a positional element is provided.

  According to the above-described image conversion device, the output image to be displayed on the image output unit by the display control unit is displayed by adjusting and displaying at least one of the temporal element and the positional element. When detecting the changing event as an image, at least one of the exposure time and the position can be made appropriate so that the brightness becomes higher than a predetermined level. At this time, since display in the image output unit can be controlled by digital image processing, it is not necessary to apply a high voltage between the input and output units as in the case of MCP, and the signal-to-noise ratio (S / N) of the image conversion apparatus Can be increased. As a result, when incorporated in an imaging apparatus, low power consumption can be achieved while achieving high speed, clearness, and high sensitivity, and reliability can be increased.

  In a specific aspect or aspect of the present invention, in the image conversion device, the display control unit displays an image so that the predetermined image detected by the image detection unit is displayed with a predetermined time delay by image processing that is adjusted by a temporal element. Operate the output unit. The necessary image recognition and processing are completed within such a time delay. In this case, the output image can be displayed with a stable delay time.

  In another aspect of the present invention, the display control unit includes an image output unit configured to display a predetermined region of the predetermined image by image processing that adjusts the predetermined image detected by the image detection unit using a positional element. Make it work. In this case, a specific image region corresponding to the detection target can be selectively displayed.

  In still another aspect of the present invention, the image detection unit detects a predetermined image in units of predetermined pixels, and the display control unit includes one or more pixels of the predetermined image by image processing adjusted by positional elements. The image output unit is operated so as to display a predetermined area. In this case, the S / N of the image conversion apparatus can be increased by detecting the pixel unit.

  In still another aspect of the invention, the display control unit processes the output image based on an adjustment signal that indicates an adjustment amount of at least one of a temporal element and a positional element.

  In still another aspect of the present invention, the display control unit generates an adjustment signal from the image detected by the image detection unit.

  In yet another aspect of the present invention, the display control unit processes the output image based on an adjustment signal that indicates an adjustment amount of at least one of the temporal element and the positional element obtained separately in parallel.

  In order to solve the above problems, a first imaging device according to the present invention includes an image intensifier that converts a weak event into a fluorescent image, and a fluorescent image output from the image intensifier as an electrical image signal. A signal conversion device for conversion, and the signal conversion device includes the above-described image conversion device.

  According to the first imaging device, when detecting an event in which the weak light that is the detection target changes at high speed, at least one of the exposure time and position at which the luminance is higher than a predetermined level is appropriate, Low power consumption can be realized while achieving high speed, clearness and high sensitivity.

  In order to solve the above problems, a second imaging device according to the present invention includes an image intensifier that converts a weak event into a fluorescent image, and the fluorescent image output from the image intensifier as an electrical image signal. A signal conversion device for conversion, and a detection device for acquiring in parallel a fluorescent image corresponding to an image detected by the image detection unit of the image conversion device, the signal conversion device having the above-described image conversion device, and detecting The apparatus outputs an adjustment signal indicating an adjustment amount of at least one of a temporal element and a positional element from the detected image to the display control unit of the image conversion apparatus, and the display control unit is obtained based on the adjustment signal The image output unit of the image conversion apparatus is operated so as to display the output image.

  According to the second imaging apparatus, when detecting an event in which the weak light that is the detection target changes at high speed as an image, at least one of the exposure time and the position is more appropriate so that the brightness is higher than a predetermined level. As a result, low power consumption can be realized while achieving high speed, clearness and high sensitivity.

  In another aspect of the present invention, in the first and second imaging devices, the signal conversion device includes a CMOS image sensor and a display element such as an organic EL panel. In this case, the operation of the imaging apparatus can be made highly accurate and reliable.

It is the schematic explaining the imaging device which concerns on one Embodiment of this invention. It is a figure explaining the delay time from the event detection in the imaging device of FIG. 1 to an output image display. FIG. 2 is a schematic diagram of an image conversion device incorporated in the imaging device of FIG. 1. (A) is a figure explaining a display control part among the image converters of FIG. 3, (B) is a figure explaining a memory | storage part among display control parts. 4 is a flowchart for explaining the operation of the image conversion apparatus in FIG. 3. (A)-(E) are timing charts explaining a specific operation example of the imaging apparatus. It is a figure explaining the modification of the image converter shown in FIG. It is a conceptual diagram explaining the operation | movement of FIG. It is the schematic explaining the structure of the measuring device incorporating the imaging device of FIG.

[1. Overall structure of the imaging device etc.)
Hereinafter, the structure and the like of an imaging apparatus according to an embodiment of the present invention will be described. An imaging apparatus 10 shown in FIG. 1 includes an image intensifier 11 that converts a weak event into a fluorescent image, and a temporal element from a fluorescent image output (hereinafter simply referred to as a fluorescent image) obtained by the image intensifier 11. And a signal converter 12 that selects an output image based on the spatial element and converts it into an electrical image signal, and a fluorescent image obtained by the image intensifier 11 is projected onto the signal converter 12 as a first fluorescent image. A relay optical system 13 and a detection device 17 that sets an imaging timing and the like for operating the signal conversion device 12 based on a second fluorescent image separated by a distributor 15 provided in the relay optical system 13 are provided.

  The image intensifier 11 converts, for example, events that occur randomly in the natural world, that is, the arrival of weak electromagnetic waves, the generation and disappearance of light, or their movement into a fluorescent image. That is, the image intensifier 11 detects the arrival of an electromagnetic wave having a predetermined wavelength (incident incidence of the electromagnetic wave to the photoelectric conversion unit 21), and outputs a fluorescent image corresponding to the detected electromagnetic wave intensity distribution from the output surface 11b. For this reason, the image multiplying device 11 includes a photoelectric conversion unit 21 disposed in the input stage and a proximity type multiplying element 23 disposed in the subsequent stage.

  In the image intensifier 11, the photoelectric conversion unit 21 has a photoelectron conversion surface 21a, an electrode unit 21b, and a fluorescent screen 21c. The photoelectron conversion surface 21a is disposed on the input side where electromagnetic waves arrive and photoelectrically converts the incident electromagnetic waves. The electrode portion 21b causes electrons emitted from the photoelectron conversion surface 21a to converge while accelerating and enter the phosphor screen 21c. The phosphor screen 21c is provided, for example, on the incident surface of the fiber optic plate, and converts accelerated electrons into a fluorescence image. The proximity type multiplying element 23 is formed by superposing two or more microchannel plates (MCP) 23a for multiplying the fluorescent image from the fluorescent screen 21c. The output surface 11b emits a fluorescent image emitted from the fluorescent screen 21c and amplified by the multistage MCP 23a.

  The relay optical system 13 includes a distributor 15 disposed on the upstream side of the optical path along the optical axis OA and a main body optical system 14 disposed on the downstream side of the optical path from the distributor 15. The relay optical system 13 projects the fluorescent image on the output surface 11 b of the image intensifier 11 on the light receiving surface 33 s of the signal converter 12 at approximately the same magnification. The relay optical system 13 is telecentric on the output surface 11 b of the image intensifier 11, that is, on the object side, and is non-telecentric on the light receiving surface 33 s of the signal converter 12, that is, on the image side.

  The distributor 15 is a prism having a built-in beam split mirror 15c which is a kind of half mirror. The distributor 15 distributes the fluorescent image on the output surface 11b of the image intensifier 11 into two fluorescent images having a predetermined intensity, that is, a first fluorescent image and a second fluorescent image. The light beam of the first fluorescent image that travels straight through the beam split mirror 15c of the distributor 15 is guided to the first optical path OP1, passes through the main body optical system 14, and enters the light receiving surface 33s of the signal converter 12. The light beam of the second fluorescent image reflected and bent by the beam split mirror 15c of the distributor 15 is guided to the second optical path OP2 and is incident on the imaging surface 41a of the trigger sensor 41 of the detection device 17. The distributor 15 is set so that the intensity of light transmitted through the beam split mirror 15c and the intensity of light reflected without being transmitted are in an appropriate ratio. Specifically, when the reduction in transmittance due to the absorption of the distributor 15 itself is not taken into account, for example, the transmittance α = 70% and the reflectance β = 30% are set. Note that it is generally desirable that the α / β ratio be greater than 1 from the viewpoint of increasing the amount of light of the first fluorescent image incident on the light receiving surface 33 s of the signal conversion device 12.

[Detection device]
The detection device 17 detects the second fluorescent image guided to the second optical path OP2 by being reflected by the distributor 15, and the signal conversion device 12 based on the detection image obtained from the detection unit 40. And a management unit 50 for controlling the operation of The detection device 17 monitors the light flux of the second fluorescent image distributed by the distributor 15 and operates the signal converter 12, particularly the first fluorescent image by the solid-state imaging device 31 via the image converter 33 described later. (Accurately, image capture after performing temporal and positional adjustment on the first fluorescent image) is appropriate.

  The detection unit 40 includes a trigger sensor 41 on which the light flux of the second fluorescent image is incident, and a trigger optical system 42 that projects the second fluorescent image onto the imaging surface 41 a of the trigger sensor 41.

  The trigger sensor 41 is, for example, a multipolar photomultiplier tube, and its imaging surface 41a has m (for example, 12) rows in the Y direction and n (for example, 12) columns in the X direction, and m rows × n as a whole. Column = A (for example, 144) channel segment area AR1. That is, the trigger sensor 41 has a mesh dynode corresponding to the segment area AR1 of the A channel. In the trigger sensor 41, a current signal obtained by photoelectrically converting the second fluorescent image on the imaging surface 41a is output only from the anode of the dynode to which the second fluorescent image is input with a predetermined intensity or higher. Note that the time required for the light beam of the second fluorescent image to enter the imaging surface 41a and output the current signal is about 1 nanosecond. The trigger sensor 41 outputs a current signal output from each anode so that it can be specified along with the appearance timing to which divided area AR1 the light flux of the second fluorescent image is incident. In other words, the output surface 11b of the image intensifier 11 is virtually divided into m rows × n columns = A channel by the divided area AR1 constituting the imaging surface 41a of the trigger sensor 41, and can be individually monitored. ing. Note that the virtual segmented area AR1 on the output surface 11b of the image intensifier 11 corresponding to such a segmented area AR1 also corresponds to segmented areas AR2, AR3, AR4 of the signal converter 12 described later. It has become. Here, a segmented area in which a weak event appears on the output surface 11b is referred to as an appearing area.

  In the trigger sensor 41, the second fluorescent image is recognized as a coarser image than the first fluorescent image, but the recognition speed and the processing speed are increased by the coarser image.

  The trigger optical system 42 projects the image of the output surface 11 b of the image intensifier 11 on the imaging surface 41 a of the trigger sensor 41 at approximately the same magnification. The trigger optical system 42 places the highest importance on brightness, and is non-telecentric on both the object side and the image side. The distributor 15 is also a part of the trigger optical system 42.

  The management unit 50 controls the determination unit 51 that operates based on the detection signal of the trigger sensor 41, the drive unit 52 that operates the signal conversion device 12 based on the output of the determination unit 51, and the operation of the signal conversion device 12. And a storage unit 53 that stores parameters captured by the solid-state imaging device 31 of the signal conversion device 12, a determination unit 51, a drive unit 52, and a control unit 54 that controls the operation of the storage unit 53. .

  The determination unit 51 includes, for example, a wave height discriminator, and determines whether or not the current signal output from each anode of the trigger sensor 41 exceeds a predetermined threshold, that is, the appearance timing of a weak event, for example, in a binary manner. Detect as sensitive information Specifically, the determination unit 51 thresholds the current signal output from the anode of an arbitrary row constituting the trigger sensor 41 and the current signal output from the anode of an arbitrary column. The second fluorescent image detected by the sensor 41 is converted into position information and timing information regarding the Y direction (m rows) and the X direction (n columns). That is, when the light flux of the second fluorescent image is incident on the specific segmented area AR1 of the trigger sensor 41, the determination unit 51 detects the time and position by the image intensifier 11 by outputting information about the time and position. For a weak event, it is possible to obtain the time, position, moving direction, etc., when this event appears. This output is logically determined based on a predetermined logic corresponding to the event to be detected. When a specific logic determination result is obtained, a trigger signal for operating the signal converter 12 is output from the determination unit 51.

  The drive unit 52 includes a communication circuit and the like, and operates the signal conversion device 12 based on information output from the determination unit 51, that is, position information and timing information regarding appearance of a weak event. More specifically, the drive unit 52 continues to capture the first fluorescent image in the segmented area AR2 of the image conversion device 33, and the image corresponding to the appearing area in which the second fluorescent image is detected in the segmented area AR1. In order to selectively display the output image in the divided area AR3 of the conversion device 33, a control signal for defining a display operation is output to the display control unit 33c. In addition, the driving unit 52 defines an imaging operation for the imaging driving unit 32 described later in order to cause the image conversion device 33 to capture an output image in the segmented area AR4 of the solid-state imaging device 31 corresponding to the appearance area. Output a control signal. Thereby, the operation | movement by the signal converter 12 can be adjusted to required minimum according to the time, the position, the moving direction, etc. where the weak event detected by the sensor 41 for triggers appears. Therefore, it is possible to extract only a weak event that changes at high speed from the output of the image intensifier 11 and image it with a high S / N. At this time, the drive unit 52 can also adjust the exposure time of imaging by the solid-state imaging device 31 based on the output (particularly intensity information) of the trigger sensor 41.

  The storage unit 53 stores timing information, position information, and the like obtained by the determination unit 51. Further, the storage unit 53 stores temporal elements (delay time ΔT and its constituent elements described later) and positional elements designated by the control unit 54. The storage unit 53 stores an image captured by the solid-state imaging device 31 of the signal conversion device 12 as a measurement result. Note that the storage unit 53 may store a temporal element related to the operation of the image conversion device 33 (a constituent element of a delay time ΔTb described later).

  The control unit 54 controls operations of the determination unit 51, the drive unit 52, and the storage unit 53, respectively. Further, the control unit 54 controls the signal conversion device 12 based on a trigger signal from the determination unit 51 (specifically, a signal including position information in addition to timing information that may be a simple signal rise). Set temporal and positional elements for operation. Thereby, the adjustment signal used for the operation of the image conversion device 33 and the drive signal used for the operation of the solid-state imaging device 31 are optimized. Here, the adjustment signal is a signal for instructing the image conversion device 33 to adjust the adjustment amount of the temporal element and the positional element from the detection image obtained by the detection unit 40, and can include a signal for adjusting the timing. .

The temporal element set by the control unit 54 takes into account the operation time in the detection device 17 from the detection timing of the detection signal in the detection unit 40 to the output timing of the adjustment signal in the management unit 50. . Specifically, as shown in FIG. 2, the fastest time until the temporal element is output is that the trigger signal is detected by the determination unit 51 after the second fluorescent image is detected as the detection image by the trigger sensor 41. The time T0 until generation is combined with the time T1 until the adjustment signal (that is, the gate signal with address) is generated by the control unit 54 based on the trigger signal from the determination unit 51. The delay time is ΔTa. Note that the image conversion device 33 of the signal conversion device 12 also requires a predetermined response time for displaying the output image. Therefore, this response time can also be included in the time element as a delay time. Specifically, as shown in FIG. 2, a time T2 for selecting and correcting an output image from an image detected by the image detection unit 33a in the display control unit 33c of the image conversion device 33, and a time that can be specified by the control unit 54 The delay time ΔTb on the display side is the sum of the variable adjustment time AT and the time T3 required to start and complete the display operation of the output image in the image output unit 33b. Therefore, the temporal element included in the adjustment signal from the control unit 54 is a value corresponding to the delay time ΔTa + ΔTb (that is, the delay time ΔT) or a value that can be calculated. Here, the delay time ΔT excluding the arbitrary variable adjustment time AT (time T0 to T3) varies depending on the devices 12 and 17 and the detected image, but is about 100 nanoseconds, for example. Information regarding these times T0 to T3 may be stored in advance in the storage unit 53 as being unique to the image conversion device 33, or may be held on the display control unit 33c side of the image conversion device 33.
In addition, when the signal converter 12, the management part 50, etc. have a common clock or timer, a time element is processed based on the clock and time information, and an appropriate delay display becomes possible. When the signal conversion device 12, the management unit 50, etc. do not have a common clock or timer, for example, a simple gate signal indicating the rise of the signal (a display command instructing the display operation start by the display control unit 33c) and the gate signal And a differential delay time (ΔT−T3) from the rise time. That is, when the display control unit 33c immediately operates the image output unit 33b at the timing when the gate signal is received, in order to secure the delay time ΔT from the occurrence of the event to the display, the image output unit is started from the target delay time ΔT. It includes a time retrospective instruction to display a detection image that has already been acquired retroactively from the detection image being acquired at the time of gate signal input only for the differential delay time (ΔT−T3) excluding the time T3 required for display at 33b. The display command needs to be output.
As for the delay time ΔT, a display maintenance time can be set in association with the delay time ΔT. That is, the image output unit 33b can display one specified frame, but the display state can be maintained for a plurality of frames designated by the control unit 54.

  The positional element set by the control unit 54 corresponds to the address of the appearing area in the section area AR1 of the trigger sensor 41.

[Signal converter]
The signal conversion device 12 includes an image conversion device 33 on which the light beam of the first fluorescent image guided to the first optical path OP1 through the distributor 15 is incident, and an output image (detection) displayed on the image conversion device 33. The first fluorescent image obtained by performing temporal and positional adjustment), an imaging drive unit 32 that causes the solid-state imaging device 31 to perform an imaging operation, and an image conversion device 33. And an imaging optical system 34 that projects a displayed output image onto the solid-state imaging device 31. The signal conversion device 12 causes the image conversion device 33 and the solid-state imaging device 31 to operate based on the adjustment signal and the drive signal (specifically, an addressed gate signal or the like) output from the detection device 17.

  The solid-state imaging device 31 has an imaging surface 12a. The entire imaging surface 12a is divided into m (for example, 12) rows in the Y direction and n (for example, 12) columns in the X direction so as to divide the imaging surface 12a into a grid. As a result, it has a divided area AR4 of m rows × n columns = A (for example, 144) channels. Each of the divided areas AR4 functions as a CMOS type image pickup device alone, and two-dimensional image detection is possible. Each segmented area AR4 can perform an imaging operation at different timings, and can independently perform an imaging operation based on an individual drive signal output from the detection device 17. In other words, the output surface 11b of the image intensifier 11 can be individually observed by being divided into m rows × n columns = A channels virtually by the divided area AR4 constituting the solid-state imaging device 31.

  The imaging optical system 34 is provided between the image output unit 33b of the image conversion device 33 and the solid-state imaging device 31, and the output image of the light emitting surface 33t of the image output unit 33b is used as the imaging surface 12a of the solid-state imaging device 31. Project to the top. The imaging optical system 34 is unnecessary when the image output unit 33b and the solid-state imaging device 31 are brought into close contact with each other.

The image conversion device 33 includes an image detection unit 33a that detects an image, an image output unit 33b that can display an image detected by the image detection unit 33a, and an image output unit 33b based on the image detected by the image detection unit 33a. And a display control unit 33c that performs image processing for adjusting the output image to be displayed on the basis of temporal elements and image processing for adjusting on the basis of positional elements.
The image conversion device 33 selectively outputs an image of a portion corresponding to a predetermined position where the second fluorescent image is detected as a detection image by the trigger sensor 41 of the detection device 17 and outputs the selective image. From the time when the second fluorescent image is detected to the time when the output image is displayed on the image output unit 33b, the time obtained by adding the positive variable adjustment time AT designated by the control unit 54 to the minimum time ΔTa + T2 + T3 (That is, delay by the delay time ΔT). Here, the time when the second fluorescent image is detected as the detection image by the trigger sensor 41 corresponds to the time when the first fluorescent image is detected by the image detection unit 33a, and the delay time ΔT is determined by the image conversion device 33. This can be regarded as a delay time of image transmission.
The display control unit 33c needs to hold the detected image without making it an output image for a period corresponding to the time ΔTa + T2 + AT (= ΔT−T3), which corresponds to the number of frames assumed as the maximum value of the time ΔT−T3. Has image memory. As described above, in the output image displayed on the image output unit 33b, the temporal element based on the designation from the control unit 54 and the appearance area where the weak event detected by the trigger sensor 41 appears. By adjusting the positional elements to be performed, it is possible to accurately capture an image of a weak event in the appearance area.

[Details of image conversion device]
FIG. 3 illustrates a specific configuration example of the image conversion device 33. In this case, the image detection unit 33a includes a light receiving FOP (Fiber Optic Plates) 71, a light receiving element array LSI 72 (Large-Scale Integration), and a light receiving circuit board 73. The light receiving element array LSI 72 is provided on a light receiving circuit board 73, and a light receiving FOP 71 is provided on the input side thereof. In the image detector 33a, the light receiving element array LSI 72 receives the image (specifically, the first fluorescent image) distributed by the distributor 15 and guided to the light receiving FOP 71. The light receiving FOP 71 has an incident surface 71 a that is provided on the input side and allows the fluorescent image to be incident as it is, and an output surface 71 b that emits the incident fluorescent image as it is to the light receiving element array LSI 72. The incident surface 71a of the light receiving FOP 71 corresponds to the light receiving surface 33s of the light receiving element array LSI 72, but the image transmitted between them does not necessarily have to be the same magnification. The light receiving surface 33 s has m (for example, 12) rows in the Y direction and n (for example, 12) columns in the X direction so as to be divided into a lattice shape, and the entire m rows × n columns = A (for example, 144) channels It has a segment area AR2. Each divided area AR2 functions as, for example, a CMOS image sensor alone, and two-dimensional image detection is possible. Each segmented area AR2 performs an imaging operation independently based on a common drive signal output from the detection device 17 described above. As a result, the image detection unit 33a can detect an image substantially at the same time in units of the divided area AR2.
The above is an example, and the segmented area AR2 has a larger area than the segmented area AR1 on the imaging surface 41a of the trigger sensor 41 and is configured with a smaller number of matrices (that is, m rows × n columns or less) than the segmented area AR1. May be.

  The image output unit 33 b includes a light emitting FOP 74, a light emitting element array LSI 75, and a light emitting circuit board 76. The light emitting element array LSI 75 is provided on the light emitting circuit board 76, and the light emitting FOP 74 is provided on the output side thereof. In the image output unit 33b, the light emitting element array LSI 75 displays an output image in a predetermined region of the predetermined image detected by the image detection unit 33a at a predetermined timing. The light emission FOP 74 has an incident surface 74a that is provided on the input side and allows an output image to be incident as it is, and an output surface 74b that emits the incident output image as it is to the solid-state imaging device 31 side. The light emitting surface 33t of the light emitting element array LSI 75 corresponds to the output surface 74b of the light emitting FOP 74, but the image transmitted between them does not necessarily have to be the same magnification. The light emitting surface 33t has m (for example, 12) rows in the Y direction and n (for example, 12) columns in the X direction so as to be divided into a lattice shape, and as a whole, m rows × n columns = A (for example, 144) channels. It has a segment area AR3. Each section area AR3 corresponds to each section area AR2 on the light receiving surface 33s. Each divided area AR3 functions independently as a two-dimensional light emitting element or an image display element, and two-dimensional image display is possible. Each divided area AR3 can perform display operation at different timings, and is displayed independently based on individual adjustment signals (specifically, gate signals with addresses) output from the detection device 17 described above. Perform the action.

  Note that the image detection unit 33a and the image output unit 33b do not have to have the same size as long as there is a spatial correspondence between the pixels constituting each of the image detection unit 33a and the image output unit 33b. The light receiving surface 33 s of the LSI 72 can be enlarged or reduced to M times including a decimal number. Further, the image detection unit 33a need not be operated in units of the divided area AR2, and can be operated collectively. At this time, the timing at which charges are accumulated in each pixel of the CMOS can be easily matched.

  The light receiving FOP 71 and the light emitting FOP 74 can be exchanged according to the light receiving area or the light emitting area required according to the application, and a window and a holder are formed in a part of the housing casing 77. The light receiving circuit board 73 and the light emitting circuit board 76 are coupled via a circuit coupling connector 78. The housing casing 77 can be an airtight container, for example, and supports the light receiving FOP 71, the light receiving circuit board 73, the light emitting FOP 74, the light emitting circuit board 76, and the like. The housing casing 77 not only has a dustproof and waterproof role, but also holds the light receiving circuit board 73 and the light emitting circuit board 76 in a nitrogen gas atmosphere or in a vacuum.

  The display control unit 33c is distributed between the light receiving circuit board 73 and the light emitting circuit board 76.

  The display control unit 33c is connected to the management unit 50 shown in FIG. 2 through the following connectors 91 to 94. Among these, the charge accumulation timing gate signal connector 91 supplies a periodic drive signal related to the timing from the management unit 50 to the display control unit 33c. The light emission timing gate signal connector 93 supplies the timing control gate or trigger portion of the adjustment signal from the management unit 50 to the display control unit 33c. The light emission area designating address signal connector 94 supplies an address portion related to the position of the adjustment signal from the management unit 50 to the display control unit 33c. The power supply connector 92 supplies power to the light receiving circuit board 73 and the light emitting circuit board 76, respectively.

  As shown in FIG. 4A, the display control unit 33c includes a detection drive unit 101 that operates the image detection unit 33a, a display drive unit 102 that operates the image output unit 33b, a detection image or an output image, and a detection image. Main unit for controlling the operation of the storage unit 103 for storing parameters and the like, the communication unit 104 for communicating with the detection device 17, the detection drive unit 101, the display drive unit 102, the storage unit 103, and the communication unit 104. And a control unit 105. An image detected by the image detection unit 33 a and an output image for the image output unit 33 b are temporarily stored in a frame memory constituting the storage unit 103.

  The detection drive unit 101 in the display control unit 33c is a drive circuit that causes the light receiving element array LSI 72 to perform an imaging operation. The first fluorescent image incident on the image detection unit 33 a is sequentially converted and temporarily stored in the storage unit 103.

  The display drive unit 102 is a drive circuit that causes the light emitting element array LSI 75 to perform a display operation. Based on the command from the main control unit 105, the display driving unit 102 causes the light emitting surface 33t of the light emitting element array LSI 75 to perform a display operation in the designated area or designated timing and in the designated area AR3. The output image displayed by the image output unit 33b is input to the solid-state imaging device 31 via the light emitting FOP 74.

  The main control unit 105 controls the operations of the detection drive unit 101, the display drive unit 102, the storage unit 103, and the communication unit 104, respectively.

  The main control unit 105 performs image output processing based on the adjustment signal from the detection device 17 that instructs the adjustment amount of the temporal element and the positional element. Specifically, the main control unit 105 receives, as inputs, for example, a simple gate signal indicating the rise of the signal and a differential delay time (ΔT−T3) from the rise of the gate signal as a signal relating to the temporal element. In addition, the detection image that has already been acquired that has been acquired by the differential delay time (ΔT−T3) from the detection image that is currently being acquired is specified, and only the detection image that corresponds to the specified positional element (address division area AR3). Is read from the storage unit 103. Further, the main control unit 105 operates the image output unit 33b or the light emitting element array LSI 75 via the display driving unit 102 to display only the designated positional element (address division area AR3). As a result, the image output unit 33b can be operated so as to delay the desired delay time ΔT from the detection of the event and selectively display a predetermined region.

  As illustrated in FIG. 4B, the storage unit 103 includes an acquired image storage unit 103a, a parameter storage unit 103b, and a corrected image storage unit 103c.

  The acquired image storage unit 103a stores the image detected by the image detection unit 33a. This image is acquired every 10 nanoseconds, for example, and each image is given a serial number for each frame while being synchronized with the image acquired by the trigger sensor 41. In the acquired image storage unit 103a, for example, the number of images that can be stored is set in advance, and old images that do not correspond to an event to be measured are deleted at regular intervals.

  In the parameter storage unit 103b, when the main control unit 105 receives the adjustment signal from the detection device 17, the main control unit 105 uses the addresses (that is, the position of the divided areas AR2 and AR3 corresponding to the position information included in the adjustment signal). Are temporarily stored and reflected in the display position of the image displayed on the light emitting element array LSI 75 or the image output unit 33b. In addition to the address information, the parameter storage unit 103b also stores timing information related to the setting of the differential delay time (ΔT−T3) (that is, the time factor) received from the detection device 17 and the display time.

  The corrected image storage unit 103c temporarily stores a corrected image whose address and timing are specified by the main control unit 105 in order to cause the light emitting element array LSI 75 or the image output unit 33b to perform a display operation. At this time, image processing such as amplification may be performed on the corrected image.

  Returning to FIG. 2, the timing of the imaging operation of the solid-state imaging device 31 is related to the timing of the display operation of the image output unit 33 b by the gate signal output also from the driving unit 52 of the detection device 17 to the solid-state imaging device 31 side. And set to the optimal timing. The gate signal output also from the drive unit 52 to the solid-state imaging device 31 side can be an addressed one.

Hereinafter, a specific operation example of the image conversion apparatus 33 will be described with reference to FIG.
First, the detection drive unit 101 is operated by the main control unit 105 to capture an image detected by the light receiving element array LSI 72 (step S11). The image capture is repeatedly performed at regular intervals, and the acquired images are sequentially stored in the storage unit 103 (No in step S12). At this time, the main control unit 105 assigns serial numbers (for example, m = 0, m = 1,... M = n) to the acquired image.

  In this state, when an addressed gate signal (adjustment signal) is input from the detection device 17 to the main control unit 105 via the communication unit 104, the main control unit 105 determines that an image output display command has been received ( In step S12, the image corresponding to the adjustment signal is read from the large number of images acquired so far from the storage unit 103 (step S13). For example, when the m = n-th image is designated by the addressed gate signal, the main control unit 105 uses the image output unit 33b that is an image that is backed by the differential delay time (ΔT−T3) from the currently acquired detection image. An image that is traced back by the delay time ΔT specified with reference to the timing at which the output image is displayed is read. At this time, the differential delay time (ΔT−T3) or the delay time ΔT is converted into a frame difference. For example, if the differential delay time (ΔT−T3) is i frames, the currently acquired m = n + ith image. The image before i frames (that is, the m = nth image) is read out. An address corresponding to the position information of the adjustment signal is specified for the read image, and the image read for the segmented area AR3 corresponding to the address is temporarily stored in the storage unit 103 as an extracted image.

  Next, the display control unit 102 is operated by the main control unit 105, and the extracted image read from the storage unit 103 in step S13 is displayed on the light emitting element array LSI 75 (step S14). The above display operation requires time T3 from the input of the gate with address. Thus, a desired image is displayed on the image output unit 33b with a delay of time ΔT from the detection of the event. As a result, the image output unit 33b displays an image adjusted by the temporal element and the positional element based on the adjustment signal corresponding to the event.

  If the process is not terminated (No in step S15), the main control unit 105 returns to step S11 to repeatedly capture an image, and when an image output command is received, the image corresponding to the adjustment signal is read out. (Step S13).

  6A to 6E are timing charts illustrating a specific operation example. 6A shows the appearance of the event, and FIG. 6B shows the output of the trigger signal corresponding to the event by the determination unit 51. FIG. FIG. 6C shows a state in which a gate signal is output from the control unit 54 to the display control unit 33c after the elapse of time T1, and FIG. 6D shows the state in the image output unit 33b after the elapse of time AT ′ + T3. The output image is displayed. Here, the time AT ′ means time adjustment by the display control unit 33 c and is preset by the control unit 54. As a result, the output image is displayed after ΔT from the appearance of the event (that is, when the image detection unit 33a detects the image). FIG. 6E shows an imaging operation by the solid-state imaging device 31, and the imaging operation is performed in a time width wider than the image output period by the image output unit 33b. In addition, δ is an advance time for slightly starting the operation start of the solid-state imaging device 31 than the operation start of the image output unit 33b.

  According to the image conversion apparatus described above, the output light to be displayed on the image output unit 33b by the display control unit 33c is displayed by adjusting the temporal element and the positional element, so that the weak light that is the detection target can be displayed at high speed. When detecting a changing event as an image, it is possible to make appropriate at least one of the exposure time and the position where the brightness is higher than a predetermined level. At this time, since display on the image output unit 33b can be controlled by digital image processing, it is not necessary to apply a high voltage between the input and output units as in the case of MCP, and the S / N of the image conversion device 33 is increased. be able to. As a result, when incorporated in the imaging device 10, high speed, clearness, high sensitivity, and low power consumption can be achieved, and reliability can be enhanced.

(Example)
Examples of the image conversion apparatus according to the present invention will be described below.
[Light receiving element array LSI]
Chip size: 2.5 mm square Design rule: CMOS 0.18 μm (ROHM Co., Ltd.)
Number of pixels: 8 × 8
Pixel size: 250 μm × 250 μm
Effective pixel size: 230 μm × 230 μm
Signal readout method: circuit in parallel pixel: PMOS reset, trigger switch, output amplifier input / output signal: all 68ch (output: 64ch, global reset: 1ch, global trigger: 1ch, VDD (3.3V): 1ch, VCC (0V): 1ch)
[Light emitting element array LSI]
Chip size: 2.5 mm square Design rule: CMOS 0.18 μm (ROHM Co., Ltd.)
Number of pixels: 8 × 8
Pixel size: 250 μm × 250 μm
Circuit in pixel: voltage-current conversion circuit, voltage protection circuit, EL drive electrode, selection switch I / O signal: all 69ch (electrode 64ch, global reset; 1ch, global trigger; 1ch, bias voltage (6V); 1ch, VDD (3.3V); 1ch, VCC (0V): 1ch)

[Modification]
In the example shown in FIG. 7, the integration of the image detection unit 33a, the image output unit 33b, and the display control unit 33c constituting the image conversion device 33 is advanced. The image conversion device 33 is an SOI (Silicon On Insulator) type stacked integrated circuit, and an image detection unit 33 a and a part of the display control unit 33 c are formed as an SOI layer on the first surface 61 a of the Si substrate 61. The image output unit 33b and a part of the display control unit 33c are formed as an SOI layer on the second surface 61b of the Si substrate 61. The image detection unit 33a on the first surface 61a side is a CMOS image sensor. More specifically, the image detection unit 33a has an integrated circuit formed of Si active layers, electrodes, wirings, and the like, and photodiodes (not shown) arranged in a matrix are formed. Transistors and the like are also formed along with the photodiodes, and driver circuits are attached around these. The image output unit 33b on the second surface 61b side is an organic EL display element. More specifically, the image detection unit 33b has an integrated circuit formed of organic EL layers, electrodes, wirings, and the like, and organic EL light emitting elements (not shown) arranged in a matrix are formed. A transistor or the like is also formed along with each organic EL light emitting element, and a driver circuit is attached around these.
Note that in the image detection unit 33a, a photodiode is formed by forming a silicon thin film, an electrode pattern, or the like on an insulating film using a known semiconductor manufacturing technique and covering them with a sealing layer. A transistor circuit is also formed by the technique. In the image output unit 33b, the organic EL light emitting element includes, for example, a pixel positive electrode, an organic EL layer, a transparent negative electrode, a transparent sealing layer, and a protective and antireflection coating on the insulating layer. A film is formed.

  As shown partially enlarged in the figure, the Si substrate 61 is formed with a through hole 61h that connects the image detection unit 33a on the first surface 61a side and the image output unit 33b on the second surface 61b side. ing. The through holes 61h are provided not in units of pixels but in units of the divided areas AR2 and AR3 shown in FIG. 3, and image data can be directly exchanged between the image detection unit 33a and the image output unit 33b. I can do it.

  The display control unit 33c has, for example, a structure as shown in FIG. 4A, a sufficient frame memory, and a high-speed signal processing circuit. The signal processing circuit includes a control circuit, an event determination control circuit, a light emitting element driving circuit, and the like. In this case, the image received by the light receiving surface 33s of the image detecting unit 33a can be displayed on the light emitting surface 33t of the image output unit 33b in a state delayed by a desired time, and the addresses of the divided areas AR2 and AR3 are set as, for example, If designated from the outside, an image can be displayed only in the designated divided area AR3. This enables image output at a timing according to the purpose of the observation system.

  Furthermore, if the display control unit 33c has a threshold discrimination function, the image or the segmented region (that is, the current region) in which weak light caused by irregular events is detected by discriminating the image received on the light receiving surface 33s on the spot. It is also possible to selectively display the signal of only the outgoing area) on the light emitting surface 33t. That is, the display control unit 33c incorporates the function of the determination unit 51 shown in FIG. Furthermore, if the display control unit 33c has a high-level signal processing function (specifically, a signal detection algorithm, an image processing function, etc.), noise and background of an image signal obtained from an image received on the light receiving surface 33s. Can be removed from the source, and a weak signal that is easily buried in noise can be selectively extracted. From the viewpoint of reducing the burden of signal processing, it can be said that it is desirable to perform discrimination based on a threshold value or noise filtering for each divided region.

  FIG. 8 is a conceptual diagram illustrating a specific operation example of the image conversion device 33. Even when the input image as the input signal includes background noise, the background noise is removed by setting the threshold level, and only the weak light of the target event can be used as the output signal, that is, the output image. Here, an exposure gate signal is input to the display control unit 33c on the image detection unit 33a side, and a light emission gate signal is input to the display control unit 33c on the image output unit 33b side. With these gate signals, the output image can be output with a delay of ΔT with respect to the input image. As described above, the image conversion device 33 itself can have not only a threshold determination discrimination function but also various filter control functions including a gate signal generation function, a signal detection algorithm, an image processing function, and the like. .

  When the display control unit 33c has a threshold determination discrimination function, if the trigger signal of the discrimination result can be output to the outside of the image conversion device 33, the synchronization of the observation system and other external devices that cooperate with the image conversion device 33 The operation becomes possible, and it is not necessary to provide a detection system (specifically, for example, the trigger sensor 41 in FIG. 1) for detecting the occurrence of an irregular event in parallel.

  The image conversion device 33 includes, for example, an image detection unit 33a including a plurality of segmented regions each having 8 × 8 pixels or 126 × 126 pixels, and an image output unit 33b including a plurality of segmented regions corresponding thereto. Realized.

  Hereinafter, specific specifications of the image conversion apparatus 33 illustrated in FIG. 7 will be described. The image conversion device 33 has a configuration of 8 × 8 pixels on the light receiving side and the light emitting side. As a result of the test, on the light receiving side, the light receiving portion of the image detecting portion 33a is composed of light receiving pixels with a side of 20 μm, has a crosstalk of 10% or less, a saturation electron number of 5000, and a dark current of 1000 e / s. It has become. On the light emitting side, the light emitting section of the image output section 33b is composed of 20 μm square light emitting pixels, has a crosstalk of 4% or less, and can be arbitrarily specified with a delay time of 100 ns or more. Overall, the photon-photon gain can be specified from 1 to 100 times, and the pulsed light response rise time can be 10 ns or less.

  According to the image conversion apparatus shown in FIG. 7, not only the noise removal illustrated in FIG. 8 but also various image signal processing can be performed immediately, and application in many fields that handle images is expected in the future.

[2. Measurement system structure etc.)
Hereinafter, the structure and the like of the measurement system according to an embodiment of the present invention will be described with reference to FIG.

  The measurement system 100 includes an illumination unit 81 that outputs laser light, an illumination drive unit 82 that operates the illumination unit 81, an imaging optical system 83 that focuses and forms an electromagnetic wave from a measurement target, and an illumination unit. The illumination control unit 85 that controls the operation of 81, the imaging device 10 that captures the electromagnetic waves collected by the imaging optical system 83, and a visualization / storage device 84 associated with the imaging device 10 are provided.

  The illumination unit 81 includes a laser light source 81a having a pulse laser that generates illumination laser light, and an irradiation optical system 81b having two polygon mirrors that scan the laser light two-dimensionally. The irradiation optical system 81b is provided with a motor 81d for rotating the polygon mirror, and the motor 81d is provided with an encoder 81e for detecting the rotation angle of the motor 81d. .

  The illumination drive unit 82 includes a trigger circuit that causes the laser light source 81a to emit pulses, and adjusts the emission timing of the illumination laser light emitted from the laser light source 81a based on the reference signal from the illumination control unit 85. .

  The illumination control unit 85 associated with the illumination unit 81 or the like controls the operation of the illumination drive unit 82 and includes a pulse generator that outputs a reference signal to the trigger circuit of the illumination drive unit 82. The illumination control unit 85 controls the operation of the motor 81d while monitoring the encoder 81e provided in the illumination unit 81 based on the reference signal from the pulse generator, and the illumination unit 81 via the illumination drive unit 82. To scan with laser light.

  The imaging device 10 captures an electromagnetic wave from a measurement target through the imaging optical system 83, but has the structure shown in FIG.

  The visualization / storage device 84 converts the image signal output irregularly from the signal conversion device 12 of the imaging device 10 into data visualized according to the intensity and the like, and the visualized data is stored in the storage device as needed. store. The visualization / storage device 84 controls the operation state of the imaging device 10, and adjusts the shooting direction and the like of an object to be shot by the imaging device 10 via the imaging optical system 83. The imaging area by the imaging device 10 covers the irradiation range of the laser beam by the illumination unit 81.

  Although the present invention has been described based on the above embodiments, the present invention is not limited to the above embodiments, and can be implemented in various modes without departing from the gist thereof. Such modifications are also possible.

  In the above embodiment, for example, the configuration of the image intensifier 11 is not limited to that illustrated in FIG. 1 and can be various.

  Moreover, in the said embodiment, as the solid-state image sensor 31 which comprises the signal converter 12, not only a CMOS type image sensor but a CCD type image sensor can be used. When using a CCD type image sensor, the shutter function can be utilized.

  Moreover, in the said embodiment, the sensor 41 for a trigger, the optical system 42 for a trigger, the determination part 51, the drive part 52, etc. which comprise the detection apparatus 17 are a mere illustration, and various deformation | transformation are possible. For example, the trigger sensor 41 can be a hybrid photodetector. A hybrid photodetector is a vacuum tube in which a multi-pixel sensor such as a CCD or CMOS is enclosed, and is converted into photoelectrons on the surface of the vacuum tube like a trigger sensor. The photodetection signal is obtained by propagating the laser beam directly to the silicon multi-pixel sensor.

  In the above embodiment, the adjustment signal indicates the adjustment amount of the temporal element and the positional element. However, the adjustment signal may indicate an adjustment amount of at least one of the temporal element and the positional element.

  In the above-described embodiment, the image detection unit 33a of the image conversion device 33 detects an image in a predetermined pixel unit. However, the image detection unit 33a may detect the entire image. In this case, the adjustment signal only needs to include a temporal element.

  Moreover, in the said embodiment, the number of division area AR1-AR4 may not be the same as long as the positional relationship respond | corresponds.

  In the above embodiment, the display control unit 33c of the image conversion device 33 processes the output image based on the adjustment signal separately obtained in parallel by the detection device 17, but the adjustment signal is set by the image conversion device 33. If possible, the output image can be processed by the image conversion device 33 alone. Note that the display control unit 33c may determine the delay time ΔT of the entire imaging device 10 from the delay time ΔTa caused by the detection device 17 and the delay time ΔTb caused by the image conversion device 33.

  In the measurement system 100, a control unit that comprehensively controls the operation of the illumination unit 81 and the operation of the imaging device 10 can be provided. By such a control unit, the observation direction by the imaging device 10 and the irradiation direction of the laser light by the illumination unit 81 can be matched to perform accurate association, and the observation timing by the imaging device 10 and the illumination unit It is also possible to detect a difference, that is, a delay from the timing of the laser beam by 81.

  The imaging apparatus 10 according to the above-described embodiment can be applied to various applications, for example, various fields such as inspection, monitoring, and medical care, by appropriately correcting the specification.

DESCRIPTION OF SYMBOLS 10 ... Imaging device, 11 ... Image multiplication device, 12 ... Signal conversion device, 13 ... Relay optical system, 14 ... Main body optical system, 15 ... Distributor, 17 ... Detection device, 31 ... Solid-state image sensor, 32 ... Imaging drive 33, an image conversion device, 33 a, an image detection unit, 33 b, an image output unit, 33 c, a display control unit, 34, an imaging optical system, 40, a detection unit, 41, a trigger sensor, 42, a trigger optical system, DESCRIPTION OF SYMBOLS 50 ... Management part 51 ... Determination part 52 ... Drive part 53 ... Control part 73 ... Circuit board for light reception, 76 ... Circuit board for light emission, 77 ... Housing housing | casing, 78 ... Circuit coupling connector, 81 ... Illumination part 82: Illumination drive unit, 83: Imaging optical system, 84 ... Visualization / storage device, 85 ... Illumination control unit, 100 ... Measurement system, 101 ... Detection drive unit, 1 DESCRIPTION OF SYMBOLS 02 ... Display drive part 103 ... Memory | storage part 103a ... Acquired image memory | storage part 103b ... Parameter memory | storage part 103c ... Correction | amendment image memory | storage part 104 ... Communication part 105 ... Main control part AR1, AR2, AR3, AR4 ... Segment area 71 ... FOP for light reception, 74 ... FOP for light emission, 72 ... Light receiving element array LSI, 75 ... Light emitting element array LSI, OA ... Optical axis

Claims (10)

An image detection unit for detecting an image;
An image output unit capable of displaying an image detected by the image detection unit;
When generating an output image in the image output unit based on the image detected by the image detection unit, for event extraction that performs at least one of image processing adjusted by a temporal element and image processing adjusted by a positional element An image conversion apparatus comprising: a display control unit.   The display control unit operates the image output unit so that the predetermined image detected by the image detection unit is displayed after being delayed by a predetermined time by image processing for adjusting the temporal element. The image conversion apparatus described in 1.   The display control unit operates the image output unit to display a predetermined region of the predetermined image by image processing for adjusting the predetermined image detected by the image detection unit with the positional element. The image conversion apparatus according to any one of claims 1 and 2. The image detection unit detects the predetermined image in a predetermined pixel unit,
The display control unit operates the image output unit to display a predetermined region including one or more pixels of the predetermined image by image processing adjusted with the positional element. 4. The image conversion apparatus according to 3.   The said display control part processes an output image based on the adjustment signal which instruct | indicates the adjustment amount of at least one of the said time element and the said position element, The any one of Claim 1 to 4 characterized by the above-mentioned. The image conversion apparatus described in 1.   The image conversion apparatus according to claim 5, wherein the display control unit generates the adjustment signal from an image detected by the image detection unit.   The display control unit processes an output image based on an adjustment signal indicating an adjustment amount of at least one of the temporal element and the positional element obtained separately in parallel. The image conversion apparatus according to any one of 5 to 5. An image intensifier that converts weak events into fluorescent images;
A signal conversion device that converts the fluorescent image output from the image intensifier into an electrical image signal;
The said signal converter has an image converter as described in any one of Claim 1-6, The imaging device characterized by the above-mentioned. An image intensifier that converts weak events into fluorescent images;
A signal converter for converting the fluorescent image output from the image intensifier into an electrical image signal;
A detection device for acquiring in parallel a fluorescent image corresponding to an image detected by the image detection unit of the image conversion device;
The signal conversion device includes the image conversion device according to claim 7,
The detection device outputs an adjustment signal indicating an adjustment amount of at least one of the temporal element and the positional element from the detected image to the display control unit of the image conversion device,
The display control unit operates the image output unit of the image conversion apparatus so as to display the output image obtained based on the adjustment signal.   The image pickup apparatus according to claim 8, wherein the signal conversion apparatus includes a CMOS image pickup element and a display element.

Images