JPH04137347U - Image monitor mask - Google Patents

Abstract

(57) [Summary] [Purpose] A monitor mask used for an image monitor that monitors image information of printing conditions in a photoprinting device can be inserted into a light-transmitting hole of a reference monitor mask plate provided for a reference negative film. A removable mask plate is installed to improve work efficiency.
Try to simplify parts. [Structure] The image monitor mask 20 is composed of a reference mask plate 21 attached to the conveyance guide 3a and a removable mask plate 23 fitted in and attached to a light transmission hole 22 of a reference screen size formed in the center of the reference mask plate 21. . The removable mask plate 23 has a light transmission hole 24 of the screen size of a small film, a small film guide groove in its cross section, and collars 34, 3 around it.
5. Further, the removable mask plate 23 is provided with a pair of lock arms 26, 26, and the distance between both lock arms 26 can be adjusted by a pin 28 inserted through a spring 27. They are slidably fitted into the provided guide holes, and each has a locking surface formed at its tip. This locking surface is the mask plate 21, 23
The removable mask plate 23 is locked by engaging with one of the locking surfaces.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea allows each image on the negative film to be The present invention relates to a monitor mask used for an image monitor that monitors the image status of each camera.

0002

[Conventional technology]

Printing equipment that prints color images from photographic negative film onto photographic paper generally A reading unit optically reads printing conditions such as image density from the film in advance, and Based on the data, the density of the light from the light source is adjusted using each of the three primary color filters to create a negative image. Equipped with a printing section that irradiates the film and prints it on the photographic paper via the lens unit. There is. In the above-mentioned reading section, light from a light source is irradiated onto the negative film to provide image information such as image density. In addition to reading the information with a scanner unit, it also reads each frame separately from this scanner unit. An image monitor is provided to monitor the image status of the image. The image monitor is generally a TV. It consists of a camera and a CRT cathode ray tube, and creates the images projected on the cathode ray tube. Employees visually monitor whether the image is in good condition and respond as necessary based on customer requests, etc. The correction information is then specified as the burning condition.

0003 A negative mask is placed on the conveying surface of the negative film in order to provide image information to the TV camera. A mask board with predetermined light-transmitting holes called a mask plate is installed, and the required screen for negative film is It works by irradiating only the inside and masking the other surrounding areas.

0004

[Problem that the idea aims to solve]

By the way, in general, photo printing machines use negative film such as 135 Multiple types are used, including those named (35 mm) and 110 (16 mm). However, the negative film transport path has a maximum width, for example, a negative film with the name 135. The width of the irradiation light source is also adjusted to the maximum width. For this reason, for example For example, when using a negative film with the name 110, do not remove any excess area other than the image surface. It will be irradiated. In order to avoid exposing such extra areas, conventionally a small width negative was used. Remove the base mask plate with light-transmitting holes corresponding to the film. It was designed to be fitted in the desired position.

[0005] However, in the conventional mask board method, there are many types of masks that can be individually attached to the conveyance path. It is necessary to prepare multiple mask plates, each of which is large in size, and the negative film The work of removing and fitting each time the type of lume changes is extremely troublesome. There has been a desire for a mask board that can be easily changed in size with one touch.

[0006] This invention is based on the mask used for the image monitor in such conventional photo printing equipment. Taking into account the current state of the mask board, a reference mask board and a removable mask board are placed on the transport guide. Depending on the size of each negative film, use one of the mask plates to print. Improve work efficiency by making it possible to monitor images, and reduce the number of types of parts. Our goal is to provide a mask for image monitors that can reduce the number of items. Ru.

[0007]

[Means to solve the problem]

In order to solve the above problem, this invention has a reference negative film on the film guide member. A reference mask plate is provided which forms a guide groove for the mask and has a light transmitting hole having the size of the reference screen. A small-sized film guide groove and a small screen sensor that can be loosely inserted into the above-mentioned light-transmitting hole. Equipped with a removable mask plate with a light-transmitting hole of 100 mm, and a pair of locks on this removable mask plate. In addition to providing an arm, both lock arms are connected with a pin with a spring inserted, and the lock arm is A claw is provided at the end of the beam, and the claw engages with the guide member or reference mask plate. The image monitoring mask has a structure in which a locking surface is formed.

[0008]

[Effect]

Since the image monitor mask of this invention is constructed as described above, it can be used for negative film. Depending on the size, the image can be monitored using either the reference mask plate or the removable mask plate. It is done. When the reference negative film is fed, the removable mask plate is removed and the monitor is It is done.

[0009] When feeding small-sized negative film, attach the removable mask plate to the reference mask plate. Install it. At that time, pinch the lock arms between your fingers and shorten the distance between them to create a reference mass. It can be inserted into the optical hole of the When the lock arm is released after insertion, it will lock onto the lock surface provided on the reference mask plate. The locking surface at the end of the lock arm abuts and the removable mask plate is attached and fixed.

0010

【Example】

Examples of this invention will be described below with reference to the drawings. FIG. 1 is an overall schematic diagram of a photo printing apparatus equipped with an image monitor mask according to an embodiment. . The photo printing apparatus consists of an image information reading unit 1 and a printing unit 2. Image information A transport unit 3 is provided in the information reading unit 1, and a transport unit 3 is installed in the information reading unit 1 to scan multiple negative films. The negative film F sent out from the priced and wound supply reel 4 passes through a number of guide rollers. It is sent by roller 6 via dancer roller 5 and guide (not shown), and is sent by dancer roller 7. Tension is adjusted.

[0011] As shown in the figure, a notch detector 8 and a splice detector 9 are located in the middle of the conveyance route. , a DX code detector 10, etc. are provided. The notch detector 8 has a negative In some cases, a notch is provided for each image frame of the image. The position of each image along the length of the film is detected. The splice detector 9 is This sensor uses optical signals to detect the positions where multiple films are spliced in advance. The DX code detector 10 detects the D written on both ends of the negative film F for each frame. This is a sensor that detects the X code, and obtains information such as film type using an optical signal. Furthermore, along the path, the light from a light source 11 consisting of a halogen lamp is split into three directions. , a screen detector 12, an image density detector 13, and and a monitoring TV camera 14 are sequentially provided. 15 is a monitor TV.

0012 FIG. 2 and subsequent figures show the mounting position and details of the monitor mask of this embodiment. In Figure 2 As shown, at the position where the monitor mask is attached, there is a reference negative with respect to the transport guide 3a. Based on the guide surface provided with the guide groove A for guiding the film (for example, the name 135 film). A light transmitting hole B having a quasi-screen size is provided. This light hole B is smaller than the standard screen size. It can be large. A reference mask plate is provided at this position. C is its mounting hole , D is a sensor mounting plate. FIG. 3 is a front view of the monitor mask 20 (the conveyance guide 3a is provided vertically). ). This monitor mask 20 includes the reference mask plate 21 described above and the light transmitting hole B. A removable mask plate 2 of a size that can loosely fit into a light transmitting hole 22 formed in the same size as It consists of 3. The removable mask plate 23 has a smaller size than the standard negative film (e.g. For example, a light transmission hole 24 of the small screen size of the film (named 110 film) is provided, and the A guide groove 25 (details will be explained later) that guides the film up and down the center of the surface, and a pair of A lock arm 26 is provided.

[0013] The lock arm 26 is secured by a pin 28 through which a spring 27 is inserted, as shown in FIG. The lock arm 26 has an L-shaped claw 29 at its tip. It slides into the L-shaped guide holes 30 and 31 opened in the removable mask plate 23. It can be inserted freely. Approximately 45° locking surfaces 32 and 33 are provided at the tip of this pawl 29. The guide member and the reference mask plate 21 are provided with corresponding locks, respectively. 32' and 33' are provided. Furthermore, the area around the removable mask plate 23 is The collars 34 and 35 are provided when the removable mask plate 23 is inserted. The removable mask plate 23 is supported by contacting the reference mask plate 21. Note that X in Figure 3 is a position detector consisting of a photosensor, and Y is a light shielding plate, which can be attached and detached. It is detected that the mask plate 23 is being used. As shown in the cross section of FIG. 5, the guide groove 25 is provided in the removable mask plate 23. I know it's there. The monitor mask of this embodiment configured as above is used as follows. . As shown in FIGS. 3 to 5, when the removable mask plate 23 is attached, a small-sized negative A monitor mask 20 is used for the film. In that case, as shown in Figure 6 Pinch the pair of lock arms 26 with your fingers to create a gap between the lock arms 26, 26. to save. In this state, insert the removable mask plate 23 into the light transmission hole 22 of the reference mask plate 21. Ru. Once the collars 34 and 35 come into contact with the surface of the reference mask plate 21, no further entry is possible. . Then, when you release the force holding the lock arms 26, 26, the force of the spring 27 will lock them. The quadarms 26, 26 widen.

[0014] When the lock arms 26, 26 are expanded, the lock surfaces 32 at the tips of the claws 29, 29, 33 abut against the locking surfaces 32' and 33', respectively, whereby the removable mask plate 23 is locked to the reference mask plate 21. When a small-sized negative film is inserted into the guide groove 25 of the removable mask plate 23, it The state of each image is monitored by an image monitor through the light transmission hole 24 of the image sensor. When you want to monitor the image of the standard size negative film, use the above removable mask plate 2. 3.Remove by doing the opposite movement to attaching. Then, the light transmitting hole 2 of the reference mask plate 21 2 appears, and the image of the reference negative film can be monitored as it is.

[0015]

【effect】

As explained in detail above, the monitor mask of this invention consists of a reference mask plate and its base. It is equipped with a removable mask plate of a size that can fit into the semi-sized light transmission hole, and a removable mask plate with a size that can fit into the semi-sized light transmission hole. A pair of lock arms are provided, and a spring is used to lock the locking surface of the tip of the arm to the guide plate or reference mass. Since it is configured so that it can be locked on the locking surface of the plate, it cannot be used against the standard negative film. Remove the removable mask plate, and use the removable mask plate for small-sized negative films. Attach the mask plate and irradiate the negative film through each light transmission hole. It is extremely easy to replace the mask, making the work easier, and also providing a removable mask plate. Moreover, the removable mask plate has an extremely simple structure and a small number of parts. Various advantages can be obtained.

[Brief explanation of drawings]

FIG. 1 is an overall schematic diagram of a photo printing apparatus equipped with an image monitor using an image monitor mask according to an embodiment.

[Figure 2] Front view of the transport guide before attaching the reference mask plate

[Figure 3] Front view of the monitor mask of the example

[Figure 4] Cross-sectional view taken from line IV-IV in Figure 3

[Fig. 5] Cross-sectional view taken along line V-V in Fig. 3

FIG. 6 is a diagram illustrating the operation and is a sectional view corresponding to FIG. 4.

[Explanation of symbols]

11 Light source 14 TV camera for monitor 15 Monitor TV 20 Image monitor mask 21 Reference mask board 22 Light hole 23 Removable mask board 24 Light hole 25 Guide groove 26 Lock arm 27 Spring 28 pin 29 Nails 32, 33, 32', 33' Lock surface 34, 35 Tsuba

Claims (1)

[Scope of utility model registration request] Claim 1: A reference mask plate having a guide groove for a reference negative film formed on a film guide member and having a light transmitting hole having the size of a reference screen is provided, the reference mask plate having a size that can be loosely inserted into the light transmitting hole. Equipped with a removable mask plate that has a small film guide groove and a small screen-sized light transmission hole, this removable mask plate is provided with a pair of lock arms, and both lock arms are connected by a pin inserted with a spring. A mask for an image monitor, wherein a claw is provided at an end of the mask, and a locking surface is formed on the guide member or the reference mask plate with which the claw engages.