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| Number | Title | Issue Date |
| 7418202 | Article having a birefringent surface and microstructured features having a variable pitch or angles for use as a blur filter An optical low pass filter or blur filter, and method of making the filters, using an article having a birefringent surface for refracting incoming light when used with an image sensor. The birefringent surface of the article, such as a film, is structured or tilted... | 08/26/2008 |
| 7038722 | Optical imaging system for suppressing the generation of red-toned ghosting particularly when there is background light An optical imaging system suppresses the generation of red-toned ghosting in an image particularly when there is a background light or when a strong light source shines on the screen. The optical imaging system has a reflection-type infrared cut filter comprising a ... | 05/02/2006 |
| 6940648 | Optical low pass filter There is provided an optical low pass filter, which is provided with a first birefringence plate that divides an incident ray into two rays, a second birefringence plate that divides an incident ray into two rays, and a third birefringence plate that divides an inci... | 09/06/2005 |
| 6549336 | Optical low pass filter An optical low-pass filter for a solid-state image sensor of an offset sampling structure is constituted of first and second optical members. The first optical member splits an incident light ray into a rectilinear ray and a refracted ray whose propagatio... | 04/15/2003 |
| 5592223 | Charge-coupled device having on-chip lens In a color CCD (charge-coupled device) imaging device where chromatic filter components are formed on sensor units functioning as pixels, respectively, and small condenser lenses are provided on the respective chromatic filter components, it is so constru... | 01/07/1997 |
| 5452129 | Optical low-pass filter A video camera equipped with an optical low-pass filter, which is to be arranged in front of a solid state imaging device. The optical low-pass filter comprises: a first sub-refractive plate adapted to separate an incident ray of light by a separation dis... | 09/19/1995 |
| 4916528 | Color stripe filter in color image pickup apparatus A color separation stripe filter in a color image pickup apparatus in which a color image is focused on a photo-electric conversion target through the filter to be converted to an electrostatic image so as to generate a color multiplexed signal. The filte... | 04/10/1990 |
| 4630107 | Color video signal processing device for enhancing at least one of a plurality of primary color signal components output from a color image pickup apparatus A color video signal processing device for a color image pickup apparatus which allows the saturation of a particular primary color to be enhanced with a good S/N ratio and without affecting the other colors. The image pickup apparatus generates a multipl... | 12/16/1986 |
| 4616255 | Color television signal generating apparatus having circuit for reducing noise in output primary color signals of camera tube having color-resolving striped filter A color television signal generating apparatus has a noise reduction circuit for reducing noise in output primary color signals of a camera tube which has a color-resolving striped filter. The noise reduction circuit operates so that the noise included in... | 10/07/1986 |
| 4527189 | Color image pickup device The invention provides a color image pickup device in which image light from a white object to be photographed or image light integrated by a diffusion plate or the like is incident on a pickup tube through an electrochromic element. Two primary color sig... | 07/02/1985 |
| 4347529 | Color-resolving striped filter for camera tube A color-resolving striped filter used for a camera tube comprises a plurality of groups of filter stripes. The groups are disposed in parallel and consecutively in a sequentially repeated arrangement. Each of the groups comprises six filter strips from am... | 08/31/1982 |
| 4215364 | Color television signal generating apparatus A color television camera has red filter stripes overlying wider blue filter stripes which in turn overlie a green filter layer. Frequency selective decoding circuitry is provided for separating the red, blue and green representative components of the cam... | 07/29/1980 |
| 4041528 | Color television signal generating apparatus for use in a single camera tube A color television signal generating apparatus comprises a color-resolving striped filter, in a camera tube, for separating the output signal of the camera tube into required signals. Detecting means detects the envelopes of specific positive wave and neg... | 08/09/1977 |
