US 12,316,939 B2
Camera lens system filter
Edwin Iovanni Galindo, West Hills, CA (US); Charles P. Hagmaier, Jr., Arroyo Grande, CA (US); Daniel Keith Sasaki, Glendale, CA (US); and Guy Hamilton McVicker, Simi Valley, CA (US)
Assigned to Panavision International, L.P., Woodland Hills, CA (US)
Filed by Panavision International, L.P., Woodland Hills, CA (US)
Filed on Nov. 29, 2021, as Appl. No. 17/537,456.
Application 17/537,456 is a continuation in part of application No. 17/534,318, filed on Nov. 23, 2021.
Application 17/534,318 is a continuation of application No. 16/381,433, filed on Apr. 11, 2019, granted, now 11,184,510, issued on Nov. 23, 2021.
Claims priority of provisional application 62/657,574, filed on Apr. 13, 2018.
Prior Publication US 2022/0166906 A1, May 26, 2022
Int. Cl. H04N 23/55 (2023.01); G02B 5/20 (2006.01); G03B 11/00 (2021.01); G09G 3/3208 (2016.01); H04N 23/56 (2023.01)
CPC H04N 23/55 (2023.01) [G02B 5/20 (2013.01); G03B 11/00 (2013.01); G09G 3/3208 (2013.01); H04N 23/56 (2023.01)] 28 Claims
OG exemplary drawing
 
1. A filter for use with a camera system comprising a camera and a camera lens, the filter comprising:
an electronic display configured for attachment with the camera system to filter an image passed through the electronic display to the camera, wherein the electronic display functions only as a neutral density filter to adjust an amount of light from an image received by the electronic display that is transmitted to the camera, wherein the electronic display comprises different neutral density filter level settings that are calibrated to at least one of different iris T-stop settings of the camera lens, different focus settings of the camera lens, different zoom settings of the camera lens, and different light exposure measurements of a light meter and stored in a memory within the electronic display;
a housing connected along one or more sides of the electronic display forming a combined assembly, wherein the combined electronic display and housing assembly has a planar configuration defined by opposed front and back electronic display and housing surfaces;
a controller disposed in the housing and configured to electrically control the filtering of the electronic display;
an input that is part of the housing for receiving a control signal from a remote device separate from the camera and configured to control one or more of the focus setting, zoom setting, T-stop setting, wherein the control signal controls the electronic display controller; and
a user input that is part of the housing and configured to enable a user manual interaction therewith to provide a control signal for controlling the controller;
wherein the electronic display is configured to operate in synchrony with at least one of the camera lens iris, the camera lens focus, the camera lens zoom, and the light meter to provide a setting selected by the controller among the calibrated stored different neutral density filter level settings as a respective calibrated neutral density filter level setting change simultaneously based on at least one of different iris T-stop settings, different focus settings, different zoom settings, and different light exposure measurements.