DE2713169A1 - Projection appts. enlarging or reducing microfilm, photographs etc. - has lens system swivelable out of path of plane mirror in housing - Google Patents

Abstract

Projection appts. is used to copy, enlarge or reduce microfilms, diapositives, photographs, prints etc. The appts. includes a housing (1) with a reproduction or drawing surface (2), an object support plate (4) located in the interior of the housing, a drawing machine (3) and an illuminating element (5). There is a lens with holder (6), swivelling and height adjustable mirror (7), projection surface (8) and a blower (9) arranged in such a way that a projection of the illuminated object is achieved either enlarged or made smaller, correctly lined up as to its sides on to the drawing surface.

Description

"Labeling device

The subject of the innovation concerns a device for projection, for Redrawing, tracing, enlarging and reducing microfilms, slides, photos, all drawings, printed templates and workpieces.

Devices or devices for redrawing are in themselves unknown. It is only a projection of the corresponding templates, such as photos, slides etc. by devices such as slide projectors, episcopes, known on a wall surface. Of the The main disadvantage of this type of drawing is the shadow created by the person drawing and an unwieldy slope of the wall or. Artboard.

Devices for tracing are known per se. These are in theirs However, possible applications are limited.

Enlarging and reducing devices for microfilms, slides, photos, etc. can be used in the phototechnical field find and are not intended for direct redrawing. Curved screens for playback of enlargements and reductions are not suitable because a flat projection and display surface is required.

The inventor set himself the task in the field of drawing technology to create a substantial improvement.

This object is achieved according to the invention by a device which nevertheless suitable for several areas of application, such as redrawing and tracing, Enlarging and reducing perspective drawings, photos, slides, microfilms, technical drawings of all kinds, artwork and workpieces or objects suitable and in addition graphical-optical effects can be achieved and graphically be held.

According to the innovation, the device is essentially characterized by a housing with recessed projection and display or drawing surface, one distortion-free mirror, a slide plate, lighting fixtures, as well as one Objective, one built-in fan for heat dissipation and one on the outside drawing machine attached to the housing.

The illuminated object on the slide plate is mediated of the lens on the mirror and thus reversed on the projection surface projected, so that on the display or drawing surface a correct and enlarged image is created.

The examined object on the slide plate is mediated of the mirror through the tilted lens reversed onto the projection surface projected, so that on the display or drawing surface a correct-sided, scaled-down Image is created.

The slide plate can according to the invention in the form of a with a Recess provided wood plate, glass plate or the like.

be designed, whereas the lens is in a pivotable holder is attached.

The distortion-free mirror is attached so that it is in the Height and angle is adjustable, whereas the projection surface and the Playback or drawing surface, made of a known glass plate with a matted surface.

A drawing machine known per se, as used on drawing boards is attached to the outside of the case above the drawing surface.

So that the distances between the slide plate, objective, and Mirrors are to be changed, they are hung or attached in the housing in such a way that that these conditions are achieved 0 The housing including the slide plate, Lens with bracket, mirror, projection and display or drawing surface, The drawing machine, lighting fixture and fan are formed as a unit.

The subject of the innovation is shown in the drawing, it shows: Fig. 1 The redesigner according to the invention in section. According to FIG. 1, the housing is marked with (1). In the present case, the housing (1) consists of a steel frame with wooden cladding. It is box-shaped and has an incline Front side a playback resp.

Drawing surface (2), which consists of a frosted glass plate and serves as a projection surface (8) on the rear. On this drawing surface (2) lies the drawing machine (3). Inside the housing (1) is a slide plate (4), consisting of a height-adjustable glass plate attached.

The lighting fixtures (5) have the task of being on the slide plate (4) sufficiently illuminate the attached object. The lens (6) with a swivel The bracket is positioned in the pivot point so that it is in front of the slide plate for enlargement (4), or can be swiveled in front of the projection surface (8) to reduce the size. The mirror (7) is mounted in the housing (1) so that it can be adjusted in height and can be pivoted at an angle. The blower (9) has the task of the heat, which is created by the lighting fixture (5) to be discharged from the housing (1).

The subject of the innovation has the advantage of previously known and perform unknown drawing techniques with one device.

Claims (9)

P A T E N T A N S P R Ü C H E Device for projection, for drawing, Drawing, enlarging and reducing of Nikrofilm, slides, photos, everything Drawings, printed templates and work pieces, not shown d u r c h, a housing (1), with a display or drawing surface (2), a Zei -machining machine (3), a slide plate attached inside the housing (1) (4), lighting fixtures (5), lens with bracket (6), swiveling and height-adjustable Mirror (7), projection surface (8) and fan (9) such that a projection of the Illuminated object on the right side on the drawing surface (2) enlarged or is reduced in size. 2) Device according to claim 1) d a d u r c h g e n n n z e i c h n e t that the housing (1) in the form of a closed hollow body of any dimensions is designed so that there is a translucent, matted drawing surface on one side (2) owns. 3) Device according to claim 1) d a d u r c h g e n n n z e i c h n e t, which the drawing machine (3) in the form of a known parallel gram or Carriage drawing machine on -or. is arranged above the drawing area. v 4) Device according to claim 1) d a d u r c h g e n n n z e i c h n e t, which consists of an object carrier plate (4) on which the original is placed made of glass, wood, metal or the like, height or is pivotable. 5) Device according to claim 1) d a d u r c h g e n n n z e i c h n e t that the lighting body (5) provides shadow-free illumination of the object ensure0 6) Device according to claim 1) d a d u r c h g e n n n z e i c h n e t that the objective lens (6) with a pivotable and height-adjustable bracket so is stored that it is used for enlargement as well as for reduction. 7) Device according to claim 1) d a d u r c h g e n n n z e i c h n e t that the mirror (7) ensures a distortion-free projection and in his Bracket is attached so that it clears the distances between the slide plate (4), lens (6) and the projection surface (8) expanded or reduced0 8) device according to claims 1 to 3) that the housing (1) is designed with drawing surface (2) in such a way that drawing in a seated position or standing posture made by means of the drawing machine (3) can be. 9) Device according to claim 1 to 8) d a d u r c h g e k e n n z e i c h n e t that the housing (1) including the drawing surface (2), drawing machine (3), slide plate (4), lighting fixtures (5), objective with holder (6), for enlargement and reduction, mirror (7), projection surface (8) and fan (9), form a unit of plastic, glass, metal or the like. Materials exist.