A high speed camera electronic shutter system

Abstract

This invention discloses an electronic shutter system for a high-speed camera, belonging to the field of high-speed camera technology. It includes a laser and a camera; the laser provides a light source for the camera, and the laser controller has control pins for controlling the laser's on and off states. The camera has output pins for outputting high and low voltage levels, and the control pin is electrically connected to the camera's output pins via a filter. The output pins output high and low voltage levels according to the camera's state, and when the control pin receives the high or low voltage level output from the output pins, the controller accordingly turns the laser on or off. This invention generates a trigger signal to the laser controller through the electronic shutter system, controlling the laser's on and off states. The laser's on-time is the camera's exposure time, thus replacing the mechanical shutter in existing technologies and reducing camera and experimental costs.

Description

Technical Field

[0001] This utility model relates to the field of high-speed camera technology, specifically to a high-speed camera electronic shutter system. Background Technology

[0002] Both the Sanger sequencer and capillary electrophoresis apparatus utilize high-speed cameras. Currently, high-speed cameras employ the opening and closing of mechanical shutters to allow and block laser beams, thereby controlling the camera's exposure time. However, high-performance mechanical shutters are expensive, increasing equipment maintenance costs; furthermore, the response time of mechanical shutters is in the millisecond range, resulting in a certain degree of latency. Utility Model Content

[0003] The purpose of this invention is to provide a high-speed camera electronic shutter system that can more accurately control camera exposure time and reduce response time.

[0004] This utility model adopts the following technical solution: a high-speed camera electronic shutter system, including a laser and a camera, wherein the laser provides a light source for the camera.

[0005] The camera has an output pin, which is used to output high and low levels.

[0006] The controller of the laser has a control pin for controlling the laser to turn on and off, and the control pin is electrically connected to the output pin of the camera; when the control pin receives a high or low level output from the output pin, the controller turns the laser on or off accordingly.

[0007] Preferably, a filter is connected between the control pin of the laser and the output pin of the camera, and the filter is used to filter the high and low levels output by the output pin.

[0008] Preferably, the output pins use differential signal output, and the output pin interfaces are compatible with BNC connectors.

[0009] Preferably: the exposure time of the camera is recorded as time T1, and the frame time is recorded as time T2; the output pin outputs a high level at time T1 and a low level at time T2;

[0010] When the control pin receives a high level, the controller turns on the laser; when the control pin receives a low level, the controller turns off the laser.

[0011] Preferably, the laser beam emitted by the laser passes through a filter and a first set of reflectors to reach a beam splitter. The two laser beams split by the beam splitter pass through a second set of reflectors and a third set of reflectors to reach the target sample, respectively. The light reflected from the target sample is captured and imaged by a camera.

[0012] Preferably, the first reflector group includes two position-adjustable reflectors.

[0013] Preferably, the second reflector group includes two position-adjustable reflectors, and the third reflector group includes three position-adjustable reflectors.

[0014] The beneficial effects of this invention are as follows: an electronic shutter system generates a trigger signal to the laser controller to control the laser's opening and closing. The laser's opening time is the camera's exposure time, thus replacing the mechanical shutter in the prior art and reducing camera costs. The laser's response time is in the microsecond range, with low response delay, which can reduce materials and lower experimental costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a high-speed camera electronic shutter system provided for an embodiment of the present invention.

[0017] Figure 2 This is a control principle diagram of a high-speed camera electronic shutter system provided for an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram showing the high and low levels output by the output pins in this utility model.

[0019] In the diagram: 1. Laser; 11. Control pin; 2. Camera; 21. Output pin; 3. Filter; 4. Filter lens; 5. First reflector group; 6. Beam splitter; 7. Second reflector group; 8. Third reflector group. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] like Figures 1 to 3 As shown, this utility model provides an electronic shutter system for a high-speed camera 2, including a laser 1 and a camera 2, wherein the laser 1 provides a light source for the camera 2.

[0023] In this embodiment, camera 2 has an output pin 21, which is used to output high and low levels. For example... Figure 3 The timing diagram shown has the exposure time recorded as T1 and the frame time recorded as T2 in the total time used for one frame. The output pin 21 outputs a high level at T1 and a low level at T2.

[0024] The controller of laser 1 has a control pin 11, which is connected to the output pin 21 of camera 2 via a filter 3. The control pin 11 receives the high and low levels output from the output pin 21, triggering the laser 1 to turn on or off accordingly. The main function of the filter 3 is to filter the high and low levels output from the output pin 21, removing high-frequency noise and interference, preventing fluctuations in the control pin 11 of laser 1 due to external noise and interference, and ensuring stable start-up and shutdown of laser 1. In this embodiment, the output pin 21 uses differential signal output to enhance anti-interference capability and ensure the stability of high and low level signal transmission. The interface of the output pin 21 is compatible with BNC connectors, facilitating quick connection with the filter 3 and the controller.

[0025] During operation, the output pin 21 of camera 2 outputs high and low levels according to the working state of camera 2. When the level is high, it represents the exposure time, and when the level is low, it represents the frame time. The output high and low levels are received by the control pin 11 of the controller after passing through the filter 3. When the control pin 11 receives a high level, the controller turns on laser 1. When the control pin 11 receives a low level, the controller turns off laser 1. The turning on and off time of laser 1 corresponds to the exposure time of camera 2, achieving the technical effect of equivalent camera 2 shutter speed.

[0026] Example 2:

[0027] Based on the above embodiment one, combined with Figure 1 As shown, in this embodiment, the laser beam emitted by the laser 1 passes through the filter 4 and the first reflector group 5 to reach the beam splitter 6. The two laser beams split by the beam splitter 6 pass through the second reflector group 7 and the third reflector group 8 to reach the target sample, respectively. The light reflected by the target sample is captured and imaged by the camera 2.

[0028] In this embodiment, the first reflector group 5 includes two reflectors mounted on an adjustment frame, allowing for position adjustment to facilitate optical path calibration. The second reflector group 7 includes two position-adjustable reflectors, and the third reflector group 8 includes three position-adjustable reflectors. Each reflector is adjustable to facilitate control of the laser beam propagation path or focused spot.

[0029] During operation, the laser beam emitted by laser 1 is reflected onto the target sample by multiple optical control elements and finally captured by camera 2. According to the shooting cycle of camera 2, the electronic shutter system generates a trigger signal to the controller of laser 1 to control the opening and closing of laser 1. The opening time of laser 1 is the exposure time of camera 2, thereby replacing the mechanical shutter in the prior art, reducing the cost of camera 2 and improving the response speed.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An electronic shutter system for a high-speed camera (2), comprising a laser (1) and a camera (2), wherein the laser (1) provides a light source for the camera (2), characterized in that: The camera (2) has an output pin (21) for outputting high and low levels; The controller of the laser (1) has a control pin (11) for controlling the laser (1) to turn on and off. The control pin (11) is electrically connected to the output pin (21) of the camera (2). When the control pin (11) receives a high or low level output from the output pin (21), the controller turns the laser (1) on or off accordingly.

2. A high speed camera (2) electronic shutter system according to claim 1, characterized in that: A filter (3) is connected between the control pin (11) of the laser (1) and the output pin (21) of the camera (2). The filter (3) is used to filter the high and low levels output by the output pin (21).

3. A high speed camera (2) electronic shutter system according to claim 1, characterized in that: The output pin (21) uses differential signal output, and the interface of the output pin (21) is compatible with BNC connector.

4. The electronic shutter system for a high-speed camera (2) according to claim 1, characterized in that: The exposure time of the camera (2) is recorded as time T1, and the frame time is recorded as time T2; the output pin (21) outputs a high level at time T1 and a low level at time T2; When the control pin (11) receives a high level, the controller turns on the laser (1); when the control pin (11) receives a low level, the controller turns off the laser (1).

5. The electronic shutter system for a high-speed camera (2) according to claim 1, characterized in that: The laser beam emitted by the laser (1) passes through the filter (4) and the first reflector group (5) to reach the beam splitter (6). The two laser beams split by the beam splitter (6) pass through the second reflector group (7) and the third reflector group (8) to reach the target sample. The light reflected by the target sample is captured and imaged by the camera (2).

6. The electronic shutter system for a high-speed camera (2) according to claim 5, characterized in that: The first reflector group (5) includes two position-adjustable reflectors.

7. The electronic shutter system for a high-speed camera (2) according to claim 5, characterized in that: The second reflector group (7) includes two position-adjustable reflectors, and the third reflector group (8) includes three position-adjustable reflectors.

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