US4514039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens mounting
Assignee: Canon Inc
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Filing: 1982-12-22
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Granted: 1985-04-30
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Expires: 2002-12-22
Abstract
Abstract Formed in a movable sleeve of a lens mounting are axial guide portions and cutout portions imparting to the guide portions an elastic deformation when the guide portions are brought into fitting engagement with respective guide grooves of a fixed sleeve.
Inventors
- 👤 Tohru Kawai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:49
CPC Classifications
G; G02; G02B; G02B7/00; G02B7/02; G02B7/026
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
A lens mounting assembly defining an optical axis comprising: a generally cylindrical support member having an inner surface; an integrally formed sleeve fitted within said support member for sliding movement relative thereto; guide means interposed between said sleeve and said inner surface to guide movement of said sleeve relative to said support member longitudinally along said optical axis, said guide means including guide members projecting radially outwardly from said sleeve for sliding engagement with said support member; lens support means on said sleeve formed integrally with said guide means for supporting a lens member therein; and cutout portions on said sleeve between said guide means and said lens support means for imparting resiliency to parts of said sleeve having said guide portions thereon to enable said guide portions to resiliently adjust in position when said sleeve is fitted into said support member.
Claim 2
Dependent Claim
142 words
A lens mounting assembly defining an optical axis comprising: a generally cylindrical support member having an inner surface; an integrally formed sleeve fitted within said support member for sliding movement relative thereto; guide means interposed between said sleeve and said inner surface to guide movement of said sleeve relative to said support member longitudinally along said optical axis, said guide means including guide members projecting radially outwardly from said sleeve for sliding engagement with said support member; lens support means on said sleeve formed integrally with said guide means for supporting a lens member therein; and cutout portions on said sleeve between said guide means and said lens support means for imparting resiliency to parts of said sleeve having said guide portions thereon to enable said guide portions to resiliently adjust in position when said sleeve is fitted into said support member.
Claim 3
Dependent Claim
26 words
An assembly according to claim 1, wherein said guide members comprise keys and wherein said inner surface is formed with slots having said keys engaged therein.
Claim 4
Dependent Claim
121 words
A lens mounting assembly having an optical axis comprising: an outer lens barrel having a plurality of guide slots; and a movable sleeve having a support portion for containing optical element means therein, a cylindrical portion formed on the outer periphery of said lens support portion, key portions arranged on said cylindrical portion to fit in said guide slots, and a plurality of cutout portions formed between said cylindrical portion and said lens support portion about an optical axis; said key portions having resiliency imparted thereto by said cutout portion, with said optical element means being held on said optical axis by fitting engagement of said guide slots of the outer lens barrel and said key portions of said movable sleeve.
Claim 5
Dependent Claim
121 words
A lens mounting assembly having an optical axis comprising: an outer lens barrel having a plurality of guide slots; and a movable sleeve having a support portion for containing optical element means therein, a cylindrical portion formed on the outer periphery of said lens support portion, key portions arranged on said cylindrical portion to fit in said guide slots, and a plurality of cutout portions formed between said cylindrical portion and said lens support portion about an optical axis; said key portions having resiliency imparted thereto by said cutout portion, with said optical element means being held on said optical axis by fitting engagement of said guide slots of the outer lens barrel and said key portions of said movable sleeve.
Claim 6
Dependent Claim
88 words
A lens mounting assembly having an optical axis comprising: a lens barrel having a plurality of guide slots; a movable sleeve having a lens support portion for containing optical element means therein, key portions fitting in said guide slots of said lens barrel, and an arcuate cutout portion for imparting a resilient property to said key portions; and a member for transmitting an exposure control signal, said transmission member being arranged to penetrate said cutout portion and to be swingable within the arcuate opening of said cutout portion.
Claim 7
Dependent Claim
88 words
A lens mounting assembly having an optical axis comprising: a lens barrel having a plurality of guide slots; a movable sleeve having a lens support portion for containing optical element means therein, key portions fitting in said guide slots of said lens barrel, and an arcuate cutout portion for imparting a resilient property to said key portions; and a member for transmitting an exposure control signal, said transmission member being arranged to penetrate said cutout portion and to be swingable within the arcuate opening of said cutout portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |