SU1282055A1 - Reading apparatus - Google Patents

Abstract

The invention relates to a projection technique and makes it possible to increase the reliability of the apparatus. It contains frame 8 in the form of racks 9 and 10, rigidly interconnected between the upper 11 and lower 12 shelves. When installing the screen in the working position, turning the handle 20 releases it from rigid fixation of the stopper 18. The frame 8 is extended by the handle 14 to the extreme upper position. On the carriage 7 between the glasses 28 install mic

Description

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Roof. Its frames are illuminated by an illuminating unit 6 fixed on the lid 13. The carriage 7 is mounted with the possibility of moving in a horizontal plane to bring the desired microfiche frame to the screen and rotate

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The invention relates to a projection technique, in particular to portable microfiche readers.

The purpose of the invention is to increase reliability.

FIG. 1 shows a reading device in the working position, a general view; in fig. 2 - the same, in the transport position i in FIG. 3 - the same, front view; in fig. 4 - the same, side view; in fig. 5 is a microfiche carriage with guides.

The reading device includes a housing 1 with a crunch 2, hinged on one of the walls of the housing 1, a lumen screen 3, a lens 4, a mirror 5 mounted to it at an angle, a lighting unit 6 and a carriage 7 for microfiche. The reading device also contains a frame 8 in the form of two 9 IP 10 racks, rigidly interconnected by two shelves, one of which is the top 11, the other bottom 12, between the racks 9 and 10 there is an additional kryshka 13, and also a handle 14. On the racks 9 and 10 mounted ball bearings 15, on which the frame 8 moves in a vertical plane along the vertical guides 16 and 17 located on the opposite walls of the housing 1 and fixing in the working and transport positions with the help of pin stoppers 18 having springs 19 and handles 20. Upper bit 13 Replenna on the frame 8, is located above the upper shelf 11 parallel to the latter. The lighting unit 6 is fixed on the inside of the flap 13. Moreover, the optical axis of the lighting system of unit 6 is aligned with the optical axis of the lens 4 mounted in the sleeve 21 on the bottom side of the shelf 11. The carriage 7 is mounted to move in a horizontal plane in two

on the sleeve 24 relative to the shelf 11 to rotate the image in the image plane. The optical axis of the illumination unit 6 is aligned with the optical axis of the lens 4 installed in the sleeve 21. 5 Il.

mutual perpendicular directions along guides 22 and 23 (Fig. 5).

In addition, the carriage 7 has the ability to rotate in horizontal

the plane at 360 with the sleeve 24, the axis of which is combined with the optical axis of the system and installed in the opening of the shelf 11 with the possibility of rotation in the horizontal plane. The carriage 7 travel guide 22 is made in the form of a rectangular frame mounted on the sleeve 24 so as to move in the transverse direction relative to the sleeve 24. The travel carriage guide 23 is made in the form of rods fixed on opposite sides of the guide 22 and is located - centered perpendicular to these sides. 7 is mounted on top of the guide 22 on the springs 25 and has openings through which the guide 23 passes. From two seconds to horon

5 of the translucent screen 3, the shutters 26 are mounted. On the lens 4, there is a focus knob 27.

Glasses 28 are mounted on carriage 7, between which microfi is placed. Sha (not shown), the reflective mirror 5 is fixed at an angle to the base of the housing 1.

The reader operates as follows.

After removing the cover 2, the screen 3 is set to the working position, turning it at the bottom. Freeing the rotation of the handles 20 from the rigid fixation of the stopper 18, by the handle 14 push the frame 8 into the uppermost

 position until the stoppers click 18. After that, the knobs 20 return to their original condition by rigidly fixing the frame 8 in the stoppers 18. Install a micro fish on the carriage 7 between the panes 28. Lighting unit 6 lights

a microfiche frame located between the panes 28. The desired microfiche frame is displayed on the screen 3 by moving the carriage 7 in a horizontal plane in two mutually perpendicular directions. Moving the carriage 7 along the Y axis is carried out by moving the guide 22 relative to the sleeve 24. Moving the carriage along the X axis occurs along the guides 23. Moving the carriage 7, you can set the required microfiche frame. Rotating the knob 27 focuses the image on the screen 3. If necessary, you can rotate the image in the plane of the screen 3 by 360 °, rotating the carriage 7 relative to the upper shelf 11 on the sleeve 24.

Claims (1)

Invention Formula A reading apparatus, comprising a housing with a lid, a lighting unit arranged therein in series, 25 a microfiche carriage mounted fj} f / 2.f 0 5 0 five with the ability to move in two mutually perpendicular directions in the horizontal plane, a lens, a mirror at an angle to its optical axis, and a luminous screen, hinged on one of the walls of the body, which is in order to increase the reliability of work, it is equipped with a frame installed in the case, made in the form of two racks, rigidly interconnected with zvum shelves, and an additional cover, while the additional cover is fixed between the racks, and the lighting unit is fixed on An additional cover, a microfiche carriage and a lens are placed on one of the shelves, the carriage is additionally mounted so that the optical axis of the lens can be rotated, and the frame is movable in a vertical plane along the inserted guides mounted on opposite walls of the housing. relation4 ag. 2 five GB f1 / g. cpuiS