JPH0364906B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a micro-fishery search device.

[Technical background and purpose of the invention]

When a roll film is used for a search, blip marks attached to the sides of each frame of the roll film are usually used for the search. For this reason, browsing search (a function that stops each frame at the projection position for a set time and searches while projecting)
If you want to search for frames, you can use blip marks to search for frames. Even if there is a frame for which no image is recorded (hereinafter referred to as a blank frame), this blank frame will not be marked. Since the frames do not stop at the projection position, the operator does not see blank frames and there is no time loss. However, when browsing and searching using film, the film usually does not have frame identification marks such as blip marks, so if there is a blank frame in the film, the image will not be recorded. If you perform a browsing search to treat the blank frames in the same way as the blank frames, the blank frames will stop at the projected position for a certain period of time, and
Since this blank frame is projected onto the screen, the operator has to wait until the next frame is sent to the projection position, which is a great waste of time. Also,
When the blank frame stops at the projection position for the set time, this part is blank and transparent, so the entire screen becomes almost at its maximum brightness, which is bad for the operator's eyes and can cause eye fatigue. Put it away.

The present invention eliminates such drawbacks, and by skipping blank frames when browsing and searching for fish film, it is possible to eliminate wasted search time and eliminate any negative impact on the eyes of the operator. The purpose of the present invention is to provide a micro-fish search device that can perform the following tasks.

The present invention provides a carrier capable of carrying a microfissure and moving in a two-dimensional direction, a driving means for moving the carrier, and a selected frame that is stopped at a projection position for a set time and then moved to the next position. a first drive control means for driving the drive means so as to repeat the operation of stopping the frame at the projection position; a detection means for detecting whether an image is recorded on the frame; and a detection means for detecting a blank frame without an image. It is characterized by comprising a second drive control means for driving the drive means so as not to stop the blank frame at the projection position for a set time when the blank frame is detected.

〔Example〕

FIG. 1 is a top view of a micro-fishery search device according to an embodiment of the present invention. An X-direction carrier table 22 that is slidable in the X-direction is mounted on the carrier base 21, and a Y-direction carrier table 23 that is slidable in the Y-direction is mounted on the X-direction carrier table 22. . Further, a transparent member 24 supporting a microfish is placed on the Y-direction carrier table 23, and when the Y-direction carrier table moves in one Y direction, the transparent member 24 rotates from a certain point centering on the rear end. The front end moves upward and begins to open, and when it comes to the front end, it is completely opened. (This open position is assumed to be the eject position.) At this time, the operator can replace, remove, or insert the microfissure film.

An X-direction reference position detection member 25 is coupled to the X-direction carrier table 22, and the X-direction reference position detection member 25 is arranged so as to be detected by an X-direction sensor 27. Further, a Y-direction reference position detection member 26 is similarly coupled to the Y-direction carrier table 23, and the Y-direction sensor 26 is connected to the Y-direction carrier table 23.
It is arranged to be detected at 8.

Also, through the cable 32, the driver 30a
The signal systems of the X-direction sensor 27 and the Y-direction sensor 28 are connected to a CPU board 31a within the keyboard 31 (FIG. 2). Also, cable 35
The DC output voltage from the power supply unit 33 is supplied to the driver 30a, the X direction sensor 27, the Y direction sensor 28, etc. in the carrier through the cable 32, and the output voltage from the power supply unit 33 is further supplied to the CPU board 31a in the keyboard 31 through the cable 32. has been done. The power supply section 33 is provided with a power switch 34, which turns on/off the voltage supplied to each section. The driver 30a and the X, Y direction motor (pulse motor) 30b are connected, and the CPU board 31a
It is controlled by pulses and direction switching signals sent by the controller.

Also, the CPU board 31a inside the keyboard 31
and a sensor section 37 are connected through a cable 36, and the sensor section 37 detects the presence or absence of an image within the frame of the microfiche, and inputs the signal to the CPU board 31a. The sensor section 37 is the third
As shown in the figure, it has a sensor 37a that receives the light transmitted through the microfissure (third
figure).

In FIG. 3, reference numeral 1 denotes a micro-fishery on a Y-direction carrier table 23, and the micro-fishery 1 is illuminated by an illumination device comprising an illumination lamp 2, a spherical reflector 3, and a condensing lens 4. The entire image of one frame of the microfish 1 is projected onto a screen 8 by a projection lens 5 via a fixed mirror (reflecting member) 6 and a half mirror (semi-transparent reflecting member) 7 placed at a fixed position.
The sensor 37A is placed behind the half mirror 7, and is placed at a position equal to the optical path length from the film to the screen 8. For sensor 37A
It consists of a photoelectric conversion element such as CdS, and one or more are provided. A portion of the projection light is projected onto the sensor 37A.

FIG. 4 shows a block diagram of the sensor unit 37 that processes the output signal of the sensor 37A to determine the presence or absence of an image.
By comparing the magnitudes of both voltages, it is possible to know whether there is an image or not, and the output of the comparator 17 is input to the CPU board 31a. The comparison voltage Vr is the amplifier 16 with and without an image.
This is a constant voltage value predetermined by the output voltage of.

In the above configuration, first, when the power is turned on, the X-direction carrier table 22 and the Y-direction carrier table 23 are moved to the reference position. The moving direction is determined based on whether or not the X-direction reference position detection member 25 and the Y-direction reference position detection member 26 are detected by the X-direction sensor 27 and the Y-direction sensor 28, respectively. For example, if the power is turned on in the state shown in FIG. 1, the X and Y direction sensors 27 and 28
5 and 26 are not detected, each carrier table 22 and 23 is moved in the -X and -Y directions, and when each direction sensor 27 and 28 detects each detection member 25 and 26, the carrier table 22 and 23 is moved. Stop moving. When the carrier is moved to the reference position in this manner, input from the keyboard 31 is accepted. First, operate the eject key to move the carrier to the eject position, and insert the flash film at the eject position. Next, when an index key or an address designation key is pressed, the carrier moves, searches for the index frame in the microfiche, or the desired frame to which the address has been specified, places this frame at the projection position, and stops.

Next, press and hold the +1 or -1 key for more than 2 seconds to enter the browsing search mode. +1 key is +
A browsing search is performed by moving the carrier in the X direction or +Y direction, and the -1 key is pressed continuously for 2 seconds or more when the carrier is moved in the -X direction or -Y direction and a browsing search is performed.
When set to browsing search mode, when the carrier moves in a specified direction and sends one frame of microfetch, the carrier stops and the index frame or frame next to the desired frame searched is placed in the projection position. The carrier stops for a set time, and after the set time, the carrier moves again in a predetermined direction to feed the microfissure by one frame, and then stops at the projection position for the next frame for a set time, and thereafter the above operation is automatically repeated. For example, if you perform a browsing search by moving the carrier in the column direction (horizontal direction), and if images are recorded in all the frames in each row, then each row from the leftmost frame to the rightmost frame of the micro-Fish The carrier moves so that the pieces are placed at the projection position for each set time. If a no-image signal is sent from the sensor section 37 on the way, the carrier is moved so as to place the next frame after this blank frame at the projection position without stopping the blank frame at the projection position. That is, when the sensor 37A detects a blank frame, the carrier is moved to place the next frame at the projection position without stopping this blank frame at the projection position for a set time.

FIG. 5 is a diagram showing the flowchart,
Check whether the browsing search is canceled in the step, and if the browsing search is canceled, exit from the browsing search mode, otherwise proceed to the step. In the step, if the image presence/absence detection signal from the sensor section 37 is in the no-image state when the carrier stops (when the sensor 37A detects a blank frame), the process goes to step;
7 detects an image frame), the process advances to step. At the step, the timer is set to 3 seconds,
The carrier will stop for 3 seconds. After the timer expires, proceed to step. In the step, the pulse for moving one frame is sent to the driver 30a, and the +1 key is pressed.
- The feed direction is determined depending on which key is operated, and the carrier is sent one frame in the specified direction.
Place the next frame at the projection position. After completing the step, return to the step. Thereafter, repeat steps ~ until you cancel the browsing search. Therefore, when the sensor 37 detects a blank frame, each blank frame in this row or column does not stop at the projection position for the set time, so there is no wasted time, and there is Browsing search time can be significantly reduced even if there are many blank frames.

Note that the sensor 37A detects light from each frame when it is placed at a predetermined projection position.
Detection is made when the micro-fish is moving or stopped. Further, when the sensor 37 detects a blank frame, the carrier may be stopped for a short time and then resume movement.

In the embodiment described above, the browsing search mode is activated when the +1 or -1 key is pressed continuously for 2 seconds, but a dedicated key for instructing the browsing search mode may be provided. Further, the frame stop time during browsing search can be arbitrarily varied.

In addition, in the above embodiment, the comparison voltage Vr of the comparator is given a constant value, but if the comparison voltage Vr is controlled according to conditions such as lens magnification, the presence or absence of an image can be detected even when the lens is replaced. It can be done with high precision.

Note that the position of the sensor 37 is not limited to that in the embodiment, and can be placed at any position where the presence or absence of an image can be detected.

〔effect〕

As explained above, in the browsing search mode of a fish film, when a blank frame with no image is detected, the blank frame is not stopped at the projection position for a set time, and the next frame is placed at the projection position. By moving the carrier in such a way that the image is displayed, it is possible to eliminate wasted search time, and also to eliminate the effects of frames with no images causing the screen to become brighter for a set time, tiring the operator's eyes.

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram of a micro-fish search device to which the present invention is applied, Fig. 2 is a block diagram of the circuit of the above-mentioned search device, Fig. 3 is a diagram showing the position of a sensor for detecting the presence or absence of images, and Fig. 4 5 is a block diagram of a sensor unit that detects the presence or absence of an image, and FIG. 5 is a flowchart. 22...X direction carrier table, 23...Y
Directional carrier table, 31...Keyboard, 3
1a...CPU board, 31b...key input section,
37A...Sensor.

Claims (1)

[Claims] 1. A carrier that holds the microfuge,
A driving means for moving the carrier in the X and Y directions, a detection means for detecting whether or not an image exists on a frame of a microfissure placed at a predetermined projection position, and a detection means for detecting whether or not an image exists on a frame of a microfissure placed at a predetermined projection position; If it is detected that the frame exists at the projection position, this frame is stopped at the projection position for a set time, the carrier starts moving, the next frame in the X direction or Y direction is placed at the projection position, and the frame is stopped at the projection position. If it is detected that there is no image in the frame placed at the frame, the driving means is controlled so as to place the next frame in the X direction or Y direction at the projection position without stopping this frame for the set time. 1. A micro-fish search device, characterized in that it is provided with means for searching.