【発明の名称】カラーテレビジョンカメラ

Title:

【発明の名称】カラーテレビジョンカメラ

Document Type and Number:

Japanese Patent JPH06100682

Kind Code:

B2

Abstract:

PURPOSE:To enable increase in the aperture diameter of the four color sepn. prisms of a color sepn. prism system and to reduce the size of a color TV camera by setting the refractive indices and vertical angles of the color sepn. prisms at prescribed values. CONSTITUTION:A color sepn. prism system have the 1st, 2nd, 3rd and 4th prisms from an objective lens 4 side along the optical axis of an objective lens 4. The 1st prism 10 and the 2nd prism 11 as well as the 2nd prism 11 and the 3rd prism 12 face respectively each other via air layers. The 1st die chroic layer 11'' is formed on the face of the 2nd prism 11 facing the 3rd prism 12. The 3rd prism 12 and the 4th prism 13 are joined via the 2nd dichroic layer 12''. The prism system is so manufactured as to satisfy the equation I - the equation III when the vertical angles of the prisms 10, 11, 12, 13 are designated as theta10, theta10+theta11, theta12, theta13 and the refractive indices of the materials constituting the respective prisms are designated as (n).

Inventors:

Seiji Fukami
Sekiguchi Takeshi
Shigeru Oshima

Application Number:

JP14975983A

Publication Date:

December 12, 1994

Filing Date:

August 17, 1983

Export Citation:

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