DE2716803C2 - Optical marking device - Google Patents
Optical marking deviceInfo
- Publication number
- DE2716803C2 DE2716803C2 DE19772716803 DE2716803A DE2716803C2 DE 2716803 C2 DE2716803 C2 DE 2716803C2 DE 19772716803 DE19772716803 DE 19772716803 DE 2716803 A DE2716803 A DE 2716803A DE 2716803 C2 DE2716803 C2 DE 2716803C2
- Authority
- DE
- Germany
- Prior art keywords
- projection surface
- projector
- umzeichengerät
- light illumination
- lighting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/14—Devices for drawing in perspective
- B43L13/16—Devices for drawing in perspective free-hand
- B43L13/18—Devices for drawing in perspective free-hand having optical or projecting equipment
Landscapes
- Projection Apparatus (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Projection-Type Copiers In General (AREA)
Description
Die Erfindung betrifft ein optisches Umzeichengeräl, mit einer durchscheinenden Projektionsfläche, auf deren Vorderseite der Zeichner ein durchscheinendes Bild nachzeichnen kann und mit einem Projektor, der auf die Rückseite der Projektionsfläche ein Bild projizieren kann. (DE-OS 24 41 072).The invention relates to an optical marking device with a translucent projection surface the front of which the draftsman can trace a translucent image and with a projector that can project an image onto the rear of the screen. (DE-OS 24 41 072).
Der praktische Einsatz dieser Geräte, z. B. im Technischen Büro, wird dadurch eingeschränkt, daß zunächst eine fotografische Aufnahme — wie Mikrofilm — vorhanden sein muH, um das projizierte Bild erzeugen zu können, und dieses in neue Zeichnungen durch Nachzeichnen zu übernehmen. In der täglichen Arbeit, beim Anfertigen von Zeichnungen ergeben sich jedoch sich wiederholende Darstellungen, die in neuen Zeichnungen in anderen Zeichenmaßstäben erneut gezeichnet werden müssen. Es wäre daher von großem Vorteil, unmittelbar nach Fertigstellung einer Zeichnung oder eines Zeichnungsausschnittes, diesen am Zeichenbrett zu fotografieren, zu entwickeln und im nächsten Moment zur Übertragung in eine neue Zeichnung zu projizieren. Damit würden sich Wartezeiten vermeiden lassen, die dadurch entstehen, daß dieThe practical use of these devices, e.g. B. in the technical office is restricted by the fact that First of all, a photographic recording - such as microfilm - must be available in order to capture the projected image to be able to generate, and to adopt this in new drawings by tracing. In the daily Work, when making drawings, however, repetitive representations result in new Drawings must be redrawn at different drawing scales. It would therefore be of great importance Advantage, immediately after completion of a drawing or a drawing excerpt, this on To photograph the drawing board, to develop it and in the next moment to transfer it to a new one Project drawing. This would avoid waiting times that arise because the
1010
1515th
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772716803 DE2716803C2 (en) | 1977-04-15 | 1977-04-15 | Optical marking device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19772716803 DE2716803C2 (en) | 1977-04-15 | 1977-04-15 | Optical marking device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2716803B1 DE2716803B1 (en) | 1978-05-24 |
DE2716803C2 true DE2716803C2 (en) | 1979-01-18 |
Family
ID=6006403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19772716803 Expired DE2716803C2 (en) | 1977-04-15 | 1977-04-15 | Optical marking device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2716803C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2660598A1 (en) * | 1990-04-05 | 1991-10-11 | Maurence Franck | Method for assisting in the reproduction of images |
-
1977
- 1977-04-15 DE DE19772716803 patent/DE2716803C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2716803B1 (en) | 1978-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EGA | New person/name/address of the applicant | ||
8339 | Ceased/non-payment of the annual fee |