Illumination – Light source and modifier – Including reflector
Patent
1990-07-27
1992-04-07
Lazarus, Ira S.
Illumination
Light source and modifier
Including reflector
362301, 362302, 358491, F21V 700
Patent
active
051033852
ABSTRACT:
A linear light source for a film scanner is disclosed which includes an elongated light integrating cavity having diffusely reflective walls. Light is introduced into the cavity through an input port, and an output beam of diffuse illumination is produced through a slot which is generally parallel to the longitudinal axis of the integrating cavity. A baffle is disposed in the cavity along the longitudinal axis to prevent light from passing directly from the input port to the output slot. In order to provide a light source which can be positioned closely adjacent the film in a film scanner, the surfaces of the integrating cavity walls adjacent the output slot are generally linear and are disposed at an angle to the optical axis of the output beam.
REFERENCES:
patent: 3212417 (1965-10-01), Gundlach
patent: 3241440 (1966-03-01), Kugler
patent: 3455622 (1969-07-01), Cooper
patent: 3553463 (1971-01-01), Dhir et al.
patent: 4205337 (1980-05-01), Millward
patent: 4226522 (1980-10-01), Marshall
patent: 4321630 (1982-03-01), Kramer
patent: 4396834 (1983-08-01), Appel et al.
patent: 4422100 (1983-12-01), DuVall et al.
patent: 4460939 (1984-07-01), Murakami et al.
patent: 4568984 (1986-02-01), Juergensen et al.
patent: 4690564 (1987-09-01), Morgenstern et al.
patent: 4797711 (1989-01-01), Sasada et al.
patent: 4833779 (1989-05-01), Milch
patent: 4868383 (1989-09-01), Kurtz et al.
Erck Gary L.
Federico Richard J.
Cole Richard R.
Eastman Kodak Company
Lazarus Ira S.
Schaper Donald D.
LandOfFree
Linear light source does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Linear light source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear light source will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1900226