Television – Special applications – Simulator
Patent
1992-06-30
1995-02-07
Gellner, Michael L.
Television
Special applications
Simulator
348224, G02F 100
Patent
active
053879589
ABSTRACT:
A camera which has an electrochromic neutral density filter. The neutral density filter is placed in the optical path of the camera. The filter changes the amount of light which may pass through it when a voltage is applied thereby regulating the amount of light which may enter the camera. By controlling the amount of light which passes through the electrochromic filter, the camera operator can control incoming light to maintain desired density (depth of field). In another embodiment, a color video camera has a color separator which separates the light into red, green and blue components. Electrochromic filters are placed between the color separator and red and blue light sensors of the camera to control the amount of light reaching the red and blue sensors. By controlling the amount of light which passes through the electrochromic filters, the camera operator can control incoming light to correct color.
REFERENCES:
patent: 3270639 (1966-09-01), Windsor
patent: 3433139 (1966-10-01), Beyen et al.
patent: 3476029 (1969-11-01), Schreckendgust
patent: 4054890 (1977-10-01), Shimomura
patent: 4480269 (1984-10-01), Yoshida et al.
patent: 4527189 (1985-07-01), Ooi et al.
patent: 4554587 (1985-11-01), Ooi et al.
patent: 4591253 (1986-05-01), Hecker et al.
patent: 4739411 (1988-04-01), Bolton
patent: 4755869 (1988-07-01), Tanaka
patent: 4887121 (1989-12-01), Pritchard
patent: 5030985 (1991-07-01), Bryant
patent: 5073013 (1991-12-01), Sonehara et al.
patent: 5075798 (1991-12-01), Sonehara et al.
patent: 5172146 (1992-12-01), Wooldridge
patent: 5191408 (1993-03-01), Takahashi et al.
Dan McCosh, "Coming for Cars: Smart Glass", Popular Science, Apr. 1991, pp. 89-91, 100.
Gellner Michael L.
Sony Electronics Inc.
Tuccillo Nicholas J.
LandOfFree
Electro-optical control of light attenuation in the optical path does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electro-optical control of light attenuation in the optical path, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-optical control of light attenuation in the optical path will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1113659