JP2000056401A - Mirror unit for exposure processing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability by attaching a mirror unit which is freely folded and housed in an exposure processing device, always housing a mirror in the mirror unit and drawing it out from the mirror unit if necessary so that operation such as cleaning a lens or adjusting an optical axis may be performed and to prevent trouble in a device caused by a careless mistake and to improve the reliability of the device by attaching the mirror unit to the device. SOLUTION: In this exposure processing device an image on a film is projected and exposed on printing paper 5 placed on an exposure base 4 from a light source 2 through a lens 3. A mirror plate 11 equipped with a mirror 10 is attached to be freely folded and housed in the exposure processing device. The mirror plate 11 is always folded and housed in the mirror unit 6 and is drawn out from the mirror unit 6 so as to arrange the mirror at a specified position in the case of performing the operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a mirror unit for cleaning a lens and adjusting an optical axis used in an exposure processing apparatus.

[0002]

2. Description of the Related Art Generally, in an exposure processing apparatus, a light source is used.
An image on a film is projected and exposed on photographic paper via a lens. That is, the lens is usually arranged in the apparatus so as to face the photographic paper placed on the exposure table.

In recent years, with the adoption of a zoom lens or the like, there is no need to replace the lens depending on the type of the object to be processed, and the lens is fixed at a predetermined position in the apparatus.

[0004] Therefore, when cleaning the lens, an operator looks into the lens installed in the apparatus, looks in from below, or gropings using a mirror (a hand mirror, a table mirror, or the like) to clean the lens. Was doing. Also, when adjusting the optical axis of the lens, in order to see a preset point on the exposure table set in the apparatus, the operator plunges his face into the apparatus and the projection point from the light source to the exposure table is adjusted. Operations such as angle adjustment and position adjustment of the lens are performed so as to approach the set point.

[0005]

However, in the case described above, the operator plunges his face into a narrow device and looks into the lens or the exposure table to check the lens installed in the device. It is necessary to drop in or bring a hand mirror, a table mirror, or the like to an easily viewable position in the apparatus, and to perform the work of adjusting the angle and the position of the lens by groping, there is a problem that the workability is poor.

[0006] In addition, the operator may leave a hand mirror, a table mirror, or the like in the apparatus during each of the above operations, and when the apparatus is operated, each unit in the apparatus may be damaged. There was.

[0007]

SUMMARY OF THE INVENTION In view of the above problems, the present invention provides a method for projecting and exposing an image on a film from a light source to a photographic paper placed on an exposure table via a lens. In the exposure processing apparatus, a mirror plate having a mirror is foldably attached to the exposure processing apparatus, and the mirror plate is always folded and stored in a mirror unit. And a mirror is arranged at a predetermined position.

Thus, the mirror plate is always folded and stored in the mirror unit, and the image on the film is projected and exposed on photographic paper. When cleaning the lens or adjusting the optical axis, pull out the mirror plate from the mirror unit, arrange the mirror at a predetermined position in the apparatus, and visually check the lens and the exposure table to perform cleaning and optical axis adjustment. Can be performed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a mirror unit of an exposure processing apparatus according to the present invention will be described below with reference to the drawings.

FIG. 1 shows the overall configuration of an exposure processing apparatus.
An image on a film is formed on a photographic paper 5 placed on an exposure table 4 from a light source 2 via a lens 3 on a main body frame 1 of the apparatus.

A mirror unit 6 that can be folded and housed is attached to the main body frame 1.
This mirror unit 6, as shown in FIGS. 2 and 3,
A mirror plate 11 provided with a mirror 10 on a box-shaped unit main body 7 via hinges 8 and 8 ′ via a connecting plate 9.
Is installed so that it can be folded and stored.

Further, as shown in FIG. 3, a notch 11b is formed in each side wall 11a of the mirror plate 11, and when the mirror plate 11 is folded and stored, the notch 11b is attached to the unit body. It is designed to be fitted into a mounting portion of a hinge 8 provided on both sides of the device 7. In addition, 12
Is a mirror plate 11 housed in the unit body 7
Holding bolt.

The mirror plate 11 is mounted so as to be slidable along a hinge 8 extending in the left-right direction in FIG. And is held by a holding plate 13 in the unit body 7. The holding plate 13 is provided with a sensor 14 for detecting a state in which the mirror plate 11 is housed in the unit body 7. In FIG. 1, reference numeral 15 denotes an opening / closing door provided on the side wall of the main body frame 1. The opening / closing door 15 is opened when cleaning the lens 3 or adjusting the optical axis. I have.

When the lens 3 is cleaned, when the fixing bolt 12 of the mirror unit 6 is released, the mirror plate 11 is pulled out from the unit body 7 of the mirror unit 6 through the connecting plate 9 to the outside. The plate 11 is arranged at the position indicated by the solid line in FIG. In this case, the state of the lens 3 can be viewed from a visual point near the opening / closing door 15 via the mirror 10 along the direction of the dotted arrow, and the lens 3 can be cleaned via the mirror 10. Can be. When the focus adjustment of the lens 3, that is, the optical axis adjustment is performed, the mirror plate 11 is disposed at the position indicated by the two-dot chain line in FIG.
Along the direction of the dashed line arrow, via the mirror 10,
The set point of the exposure table 4 is made visible so that the light source 2
The optical axis of the lens 3 can be adjusted by adjusting the position and angle of the lens 3 while checking the difference from the projection light from the lens 3.

Therefore, in the above embodiment, when cleaning the mirror 10, the mirror 10 is pulled out from the mirror unit 6, placed at the solid line position shown in FIG. 5, and the lens 3 is cleaned. When the optical axis of the mirror 10 is adjusted, the mirror 10 is pulled out to a position indicated by a two-dot chain line in FIG.
The position and angle of the lens 3 can be adjusted so that the projected image approaches a set point set in advance on the exposure table 4. Therefore, the cleaning of the mirror 10 and the adjustment of the optical axis do not require the operator to dig his face into the inside of the apparatus and work in an unreasonable manner. As a result, maintenance of the apparatus is facilitated, and the work is facilitated and accurate.

If the mirror 10 is not cleaned or the optical axis is not adjusted, the mirror 10 is folded and housed in the mirror unit 6, so that the mirror 10 hinders ordinary photographic processing. There is no. In other words, there is no fear that a hand mirror, a table mirror, or the like may be left in the apparatus when performing operations such as cleaning the lens. Further, the mirror unit 6 is provided with a sensor 14 for detecting the storage state of the mirror 10, and when the mirror 10 comes off, the interlock mechanism operates to stop the operation of the apparatus, and an error message is displayed on a display (not shown). Is displayed. Therefore, the device does not break down due to the careless mistake of the worker, and the reliability of the device is improved.

[0017]

As described above, according to the present invention, in an exposure processing apparatus for exposing a film image onto photographic paper placed on an exposure table from a light source via a lens, the exposure processing apparatus includes a mirror. The mirror plate equipped with a mirror plate can be folded and stored so that the mirror plate is always folded and stored in the mirror unit, and at the time of work, the mirror plate is pulled out of the mirror unit and the mirror is arranged at a predetermined position. . This allows the operator to perform lens cleaning and optical axis adjustment while looking at the lens and the exposure table through the mirror simply by pulling out the mirror plate, thereby facilitating lens maintenance. , Workability and reliability are improved. In addition, if the storage state of the mirror is monitored by a sensor or the like, or if the device is provided with an interlock mechanism, a hand mirror or a hand mirror can be provided in the device at the time of work such as lens cleaning and optical axis adjustment as in the related art. Carelessness such as misplacement of the table mirror is reduced. Accordingly, damage to the device due to carelessness can be prevented, and the reliability of the device is improved.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a main part of a mirror unit of an exposure processing apparatus according to the present invention.

FIG. 2 is a perspective view showing the overall configuration of a mirror unit.

FIG. 3 is a front perspective view showing a state where a mirror is pulled out from a mirror unit.

FIG. 4 is a rear perspective view showing a state where a mirror is pulled out from a mirror unit.

FIG. 5 is an explanatory view showing the operation of a mirror unit of the exposure processing apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 ... Light source 3 ... Lens 4 ... Exposure table 5 ... Printing paper 6 ... Mirror unit 10 ... Mirror 11 ... Mirror plate 14 ... Sensor

Claims (4)

[Claims] 1. An exposure processing apparatus for projecting and exposing an image on a film from a light source to a photographic paper placed on an exposure table via a lens, wherein the exposure processing apparatus includes a mirror plate having a mirror. And the mirror plate is always folded and stored in the mirror unit, and the mirror plate is pulled out of the mirror unit during operation and the mirror is arranged at a predetermined position. Mirror unit of the exposure processing apparatus. 2. The mirror unit of the exposure processing apparatus according to claim 1, wherein the mirror unit includes a sensor for determining a storage state of the mirror. 3. The mirror unit according to claim 1, wherein the predetermined position is a position where the lens can be viewed from a visual point via the mirror when cleaning the lens. . 4. The apparatus according to claim 1, wherein the predetermined position is a position where a set point of the exposure table can be viewed from a visual point via the mirror when the optical axis of the lens is adjusted. Mirror unit of exposure processing equipment.