PL152193B2 - Enlarger for workshop use - Google Patents

Description

REPUBLIC

POLAND

PATENT DESCRIPTION OF THE TEMPORARY PATENT

Provisional patent additional to patent no. Applied for: 88 05 10 (P. 272393)

Precedence ---- Int. Cl. ^s G03B 21/00 G02B 27/22

OFFICE

PATENT

RP

Application announced: 09 02 20

Patent description published: 1991 03 29

Creators of the invention: Stanisław Łętowski, Stanisław Zachara, Stefan Żuliński

Authorized by a provisional patent: University of Gdańsk,

Gdansk (Poland)

Workshop magnifier

The subject of the invention is a workshop enlarger, consisting of an illuminator and a monitor. The detail, processed on the machine tool and illuminated by an illuminator, is displayed on the screen.

The workshop projector known from the description of the patent application No. 256 354 (BUP 19 / Θ6) consists of an illuminator, processed on a workpiece machine tool, and a screen with a screen showing the enlarged image of the contours of the detail. It contains a green filter in the housing at the entrance, behind it a lens made of two lenses, between which there is a microscale, and at the end an oblique flat mirror. At the exit there is a screen, equipped on the outside with two auxiliary grips for fixing drawings. The monitor housing is mounted on a vertical tripod embedded in a bracket ending the first horizontal bracket. The tripod is slidably and rotatably mounted. Also, the first bracket slidably engages in a handle ending the second horizontal bracket which in turn slides on a second horizontal and perpendicular to the first bracket with the handle. The second bracket is slidably mounted in a chuck attached to the machine table. The head of the first holder is provided with an angle scale in the direction of the optical axis in relation to the direction of the main axis of the machine tool. This good and simple workshop projector, however, allows only the contours of the workpiece to be viewed.

The essence of the invention is a stereoscopic workshop enlarger. It also consists of an illuminator and a monitor, forming a single structural and optical system, and also includes an illuminating lamp with an optical system, and optical systems, including lenses, mirrors and a screen. According to the invention, on both sides of the illuminator, there are two optical channels, each containing two-lens lenses, behind which polarizers are positioned with mutually

152 193

152,193 perpendicular directions of polarization planes. Behind them, in turn, there are flat mirrors, directing polarized light beams to the screen. The two-eyed screen is equipped with two polarizers, which are analyzers with mutually perpendicular directions of the polarization planes, corresponding to the directions of the polarization planes, preferably in the form of glasses. The observer then perceives the images formed on the screen as one spatial image of the illuminated detail.

The invention, by achieving the set goal, demonstrates favorable technical, technical and operational effects. The enlarger is of relatively simple construction, it contains well-known and proven optical and mechanical components. It can be easily produced in workshops. The device is cheap and works reliably. The stereoscopic workshop enlarger makes it much easier to obtain high-quality workpieces, while increasing occupational health and safety.

The subject of the invention is schematically shown in the drawing showing the optical system in top view.

The workshop enlarger consists of an illuminator 1 and a monitor 2, creating a uniform optical and structural system. It is attached to the table of the machine tool so that the optical beam 3 of illuminating light falls on the front surface of the workpiece 4.

The optical system of the illuminator 1 comprises a light source in the form of a lamp 5 behind which a concave mirror 6 is located, and in front of which a capacitor '7 is situated. The monitor 2 comprises two lenses 8 situated on both sides of the illuminator 1. and 9, representing the inputs of two independent optical channels 10 and 11. Each of these lenses 8 and 9 is formed of pairs of lenses 12, 13 and 14, 15. In the first optical channel 10, in the path of the light beam, a polarizer 16 is located, and behind it, a flat mirror 17 directing the reflected polarized light onto the screen 18 constituting the rear wall of the monitor 2. Similarly, in the second optical channel 11, in the path of the light beam, a second polarizer 19 with a polarization plane perpendicular to the polarization plane of the first polarizer 16. Behind the latter the polarizer 19 also includes a flat mirror 20, directing reflected and polarized light onto the screen 18.

The observer with both eyes 2] and 22 observes the screen 18 through two polarizers 23 and 24, which are analyzers with mutually perpendicular polarization planes, corresponding to the polarization planes 16 and 19, respectively. As a result, the observer sees binocularly one spatial image of the processed element - detail 4.

Claims (1)

Patent claim Workshop enlarger, consisting of an illuminator and a monitor, forming a uniform structural and optical system, including an illuminating lamp with a system forming a beam illuminating the workpiece, optical systems, including lenses, mirrors and a screen, characterized in that on both sides of the illuminator (1) there are two optical channels (10 and 11), containing two-lens lenses (8 and 9), behind which polarizers (16 and 19) are positioned with mutually perpendicular directions of polarization planes, behind which there are flat mirrors (17 and 20) , directing polarized light beams to the screen (18), while the screen (18) observed binocularly is equipped with polarizers (23 and 24), which are analyzers, with mutually perpendicular directions of polarization planes, corresponding to the directions of polarization planes (16). and 19), preferably in the form of glasses, perceiving the observed images on the screen (18) as one three-dimensional image of the illuminator cast workpiece (4). 152 193