Victor Company of Japan, Limited

Masao Nozaki

Satoru Moriya

Yoshitaka Iwabuchi

Junsuke Tokumitsu

Keizo Kono

Norimasa Arai

Takaharu Nishino

Tatsumi Takahashi

Yoichi Kashida

The present invention provides a video projector equipped with a projection lens system having only one optical axis for projecting a plurality color images displayed on a plurality of CRTs. The color images displayed on the CRTs 2R, 2B and 2G are respectively focused onto a writing side of respective spatial light modulators 4R, 4G and 4B through a plurality of writing lens 3R, 3G and 3B. On the other hand, a light from a reading light source 5 is divided into 3-color lights of R, G and B by a cross-type 3-color separation member 25. The three color lights are respectively inputted into a reading side of the respective spatial light modulators through a plurality of polarization beam splitter blocks 26R, 26G and 26B each having a pair of dielectric multiple layers 26a, 26b disposed parallel to each other. A plurality of reading light outputted from the spatial light modulators are synthesized and outputted as a composite color light by a cross-type 3-color composition member 28 so as to be projected with a magnification onto a screen by the projection lens system.

Video projector

A transducer feeding mechanism is used for an apparatus for recording and reproducing a signal on and from a rotary recording medium by means of a transducer fed over the recording medium in the radial direction thereof. The mechanism comprises a rotational motive power source having a rotary shaft and a pinion provided on the shaft, a rack meshed with said pinion and fed in translational movement by the rotation of the pinion, a single guide bar extending in the direction of feeding of the transducer, a first feeding carriage on which the rack is mounted, and which is guided by said guide bar, a second feeding carriage on which the transducer is mounted, and which is guided by said guide bar, a contact bar extending in substantially parallel with the guide bar, a contact member mounted on the second feeding carriage and contacting said contact bar, and biasing means provided between the first and second feeding carriages and functioning to impart torques to the first feeding carriage in a direction to cause the rack to mesh further with the pinion and to the second feeding carriage in a direction to cause the contact member to contact the contact bar.

Transducer feeding mechanism in an apparatus for recording and

A series of film-containing cassettes are placed in projecting positions and thereafter in rewinding positions. First and second take-up reels are arranged to be axially movable between first and second positions. An elongate film guide member is movable between an active position in which the guide defines a straight threading path between the cassette occupying the projecting position and the take-up reel occupying the first position and a normally inactive position in which the guide is clear of the threading path. In the film threading mode, the leading end of film is driven through the straight threading path and taken up by the take-up reel. A film handling mechanism is provided between the opposite ends of the threading path. Upon completion of film threading, the movable elongate guide is restored to the inactive position and the film handling mechanism is brought into operation to engage the film with an aperture plate. Upon completion of film projection, the cassette and the first take-up reel which occupy the projecting and first positions, respectively, are shifted to the rewinding and second positions, respectively. A subsequent cassette is shifted to the projecting position and the second take-up reel occupies the first position. Film threading of the subsequent film cassette is effected simultaneously with rewinding of the previous cassette.

Projecting system for automatically loading, threading projecting and

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Kawasaki, Japan

Masao Nozaki