Patent US4735499A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4735499A Expired / Lapsed US ⏱️ 0.0 years remaining

Film carrier support mechanism for film projector

Assignee: Fujifilm Corp
•
Filing: 1986-11-20
•
Granted: 1988-04-05
•
Expires: 2006-11-20
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A film carrier support mechanism for a film projector of the type having an upper cylindrical member for accommodating a light source, and a lower cylindrical member for accommodating an optical arrangement for projection. The light source is adapted to project a picture stored in any of multiple frames of a film. A support member is interposed between the upper and lower bodies for supporting a film carrier, which receives therein a film to be projected, such that the film carrier is movable in a two-dimensional direction in a plane which is perpendicular to the optical axis of the optical arrangement. The support member includes guide elements which cooperate with the film carrier to guide the film carrier in a lengthwise direction of the film, while the film carrier is in a predetermined position with respect to a direction perpendicular to a lengthwise direction thereof.

Inventors

  • 👤 Takao Kiuchi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 18:10
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/08; G03B23/12; G03B21/00

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 196 words
A film carrier support mechanism for use with a film projector which includes an upper body for accommodating a light source for projecting pictures stored in a film having an array of a plurality of frames, and a lower body for accommodating an optical arrangement for projection, comprising: support means, coupling said upper and lower bodies, for holding a film carrier which receives therein a film to be projected, said film carrier being movable in two dimensions within a plane which is substantially perpendicular to an optical axis of said optical arrangement; said support means including guide means cooperative with said film carrier for normally keeping said film carrier in a predetermined position with respect to a direction perpendicular to a lengthwise direction of the film and for guiding said film carrier in the lengthwise direction; said guide means being freed upon a force being applied to said film carrier to cause said film carrier to move perpendicularly to the lengthwise direction of the film within the plane so as to bring a portin of a frame carried on the film other than the center of the frame to the optical axis of said optical arrangement.
Claim 2
Dependent Claim 196 words
A film carrier support mechanism for use with a film projector which includes an upper body for accommodating a light source for projecting pictures stored in a film having an array of a plurality of frames, and a lower body for accommodating an optical arrangement for projection, comprising: support means, coupling said upper and lower bodies, for holding a film carrier which receives therein a film to be projected, said film carrier being movable in two dimensions within a plane which is substantially perpendicular to an optical axis of said optical arrangement; said support means including guide means cooperative with said film carrier for normally keeping said film carrier in a predetermined position with respect to a direction perpendicular to a lengthwise direction of the film and for guiding said film carrier in the lengthwise direction; said guide means being freed upon a force being applied to said film carrier to cause said film carrier to move perpendicularly to the lengthwise direction of the film within the plane so as to bring a portin of a frame carried on the film other than the center of the frame to the optical axis of said optical arrangement.
Claim 3
Dependent Claim 32 words
A film carrier support mechanism in accordance with claim 1, wherein the guide means comprises means for halting a movement of the film carrier at a predetermined frame position of the film.
Claim 4
Dependent Claim 42 words
A film carrier support mechanism in accordance with claim 1, wherein the support means is integrally connected to the upper body, and rotatable about the optical axis of the optical arrangement in a plane which is substantially perpendicular to the optical axis.
Claim 5
Dependent Claim 55 words
A film carrier support mechanism in accordance with claim 1, wherein said guide means include projecting members positioned on an inner surface of said support means, said projecting members being engagable with grooves formed in the rear surface of said film carrier for maintaining said film carrier in a predetermined orientation with said support means.

References Cited (Backward Citations)

GB616804A Cited
AT75767B Cited
US2177638A Cited
US2744444A Cited
US2782680A Cited
FR1230050A Cited
US3164058A Cited
US3301128A Cited
US3741637A Cited
US3720463A Cited
US3807850A Cited
EP0094878A2 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-04-05 1991-10-05 1992-04-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-04-05 1995-10-05 1996-04-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-04-05 1999-10-05 2000-04-05 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag