US4129898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-diverting attachment for photographic flash units
Assignee: Individual
•
Filing: 1976-12-06
•
Granted: 1978-12-12
•
Expires: 1996-12-06
Abstract
Abstract An attachment for a photographic flash unit which functions to divert the high intensity light rays emanating from the flash unit along a path or paths axially or angularly offset relative to the focal axis of the flash unit and an associated camera to thereby provide unusual lighting effects for the subject being photographed, and to prevent intense illumination of the blood vessels of the eyes of a human or other animal subject being photographed.
Inventors
- 👤 Charles L. Ohrstedt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:06
CPC Classifications
G; G03; G03B; G03B15/00; G03B15/02; G03B15/03; G03B2215/00; G03B2215/05; G03B2215/0514; G03B2215/0517; G03B2215/055
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A light-diverting attachment for a photoflash unit having a light-emitting aperture, comprising: (a) a mounting bracket for quickly detachable external connection to a photoflash unit and having an opening for registration with the light-emitting aperture of the photoflash unit and a channel-forming flange disposed in surrounding relation to said opening; and (b) an elongated, hollow, bendable tube having an open, light-transmitting passage extending therethrough and a proximal end portion provided with a connector frame detachably engaged with the channel-forming flange of said mounting bracket in surrounding relation to the opening thereof and a distal, light-projecting end portion extending remotely from said mounting bracket, said tube being normally shape-retentive, but being manually bendable to locate the light-projecting end portion thereof at various axially offset positions with respect to the opening of said mounting bracket and the light-emitting aperture of the photoflash unit.
Claim 2
Dependent Claim
141 words
A light-diverting attachment for a photoflash unit having a light-emitting aperture, comprising: (a) a mounting bracket for quickly detachable external connection to a photoflash unit and having an opening for registration with the light-emitting aperture of the photoflash unit and a channel-forming flange disposed in surrounding relation to said opening; and (b) an elongated, hollow, bendable tube having an open, light-transmitting passage extending therethrough and a proximal end portion provided with a connector frame detachably engaged with the channel-forming flange of said mounting bracket in surrounding relation to the opening thereof and a distal, light-projecting end portion extending remotely from said mounting bracket, said tube being normally shape-retentive, but being manually bendable to locate the light-projecting end portion thereof at various axially offset positions with respect to the opening of said mounting bracket and the light-emitting aperture of the photoflash unit.
References Cited (Backward Citations)
US2881685A
Cited
US3449036A
Cited
US3638013A
Cited
US3649118A
Cited
US3683167A
Cited
US3712724A
Cited
US3825335A
Cited
US3900858A
Cited
FR2260746A1
Cited
US4009382A
Cited
DE2436378A1
Cited
US4060724A
Cited
US4017727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-12-11 | 1982-06-12 | 1982-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-11 | 1986-06-12 | 1986-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-11 | 1990-06-12 | 1990-12-12 | $7700.00 | Window Closed / Lapsed |