Spacer with an inclined surface for mounting a solid image pickup element to a color separation prism
AssigneeFuji Photo Optical Co., Ltd.
InventorsShigehiro Kanayama, Kazuto Tanaka, Masaki Ito
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Abstract
A solid image pickup element is adhesively attached via a spacer to the light leaving end of a color separation prism which is employed in a television camera to separate the light of an object from an optical lens system into a plurality of wavelength band components. The spacer has at least one surface to be engaged with either the color separation prism or the solid image pickup element, and the engagement surface is inclined relative to the light leaving optical axis of the prism. Therefore, a single spacer can be satisfactorily utilized for different clearances between the prism and the solid image pickup element.
Claims12
A structure for mounting a solid image pickup element to the light leaving end of a color separation prism for separating the light of an object from an optical lens system into a plurality of wavelength band components, said structure comprising at least one spacer interposed between and attached to said color separation prism and said solid image pickup element, said spacer having at least one surface obliquely inclined with respect to the light leaving axis of said color separation prism and being capable of maintaining, between said solid image pickup element and said color separation prism, a required clearance selectable from a range of possible clearances varying in width in a stepless manner.
Dependencies are inferred from the claim text.