Projecting device

Details Projecting device Projecting device

1985-10-02

1987-06-30

Frankfort, Charles

Optics: image projectors

Lens support

Lens position adjustable

411397, G03B 2114

Patent

active

046766154

ABSTRACT:
Projecting device for presentation of pictures and of a kind which includes a lockable transport safety device (4, 10, 21) for members (8) which are movable for adjustment purposes and which are of such weight and form that they require the safety against shocks and vibrations. For the adjustment an adjustment device is provided having an operating member (17). The transport safety device (4, 10, 21) is so arranged that it for locking purposes requires a locking element (21). This locking element also is provided to alternatively accomplish a movement of the adjustment device (3) when operating the operating member (17) for the adjustment, whereas the adjustment device (3) being released from actuation from the operating member (17), when the locking element (21) is positioned in the transport safety device (4, 10). In this way no adjustment can take place, when the transport safety device is locked.

REFERENCES:
patent: 2366554 (1945-01-01), Peck et al.
patent: 2598573 (1952-05-01), Lutes
patent: 3191491 (1965-06-01), Pignone et al.
patent: 3712725 (1973-01-01), Eckerdt
patent: 3963337 (1976-06-01), Lundberg

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