ES65877U - Transmission projector in an illuminated room and on a screen behind the operator's back (Machine-translation by Google Translate, not legally binding)
- Google Patents
Transmission projector in an illuminated room and on a screen behind the operator's back (Machine-translation by Google Translate, not legally binding)
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.)
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Exacta SA
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Exacta SA
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Application filed by Exacta SAfiledCriticalExacta SA
Priority to ES0065877UpriorityCriticalpatent/ES65877Y/en
Publication of ES65877UpublicationCriticalpatent/ES65877U/en
Application grantedgrantedCritical
Publication of ES65877YpublicationCriticalpatent/ES65877Y/en
An overhead projector device in an illuminated room and on a screen located behind the operator, characterized by being made up of a box, provided with the corresponding ventilation slots, inside which a fan, a lamp, a tilted mirror is housed , and a reflector and a system of lenses that direct the luminous rays coming from the first on the second one, which in turn directs them on an opening located in the upper part of the box, in which it is situated, on the other hand outside, a flat glass on which the transparencies to be projected are placed, and, on the inside, a convergent lens of special type. (Machine-translation by Google Translate, not legally binding)
ES0065877U1958-04-221958-04-22
Transfer projector in a lighted room and on a screen located behind the operator
ExpiredES65877Y
(en)
Transmission projector in an illuminated room and on a screen behind the operator's back (Machine-translation by Google Translate, not legally binding)
Improvements in the construction of fixed view projectors for opaque and transparent bodies (Machine-translation by Google Translate, not legally binding)