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JPH06124875A Expired / Lapsed JP ⏱️ 0.0 years remaining

Lighting equipment

Assignee: Toshiba Corp
•
Filing: 1991-04-12
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Granted: —
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Expires: 2011-04-12
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Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 照明の均一性により優れた照明装置を提供す ることである。 【構成】 露光面を照明する照明光学系において、該照 明光学系の中の少なくとも1ヵ所に前記露光面と共役な 位置を設け、該共役位置の近傍に、露光面の光量分布と 逆の特性をもつ補正フィルタを設けている。 (57) [Abstract] [Purpose] To provide a lighting device which is more excellent in uniformity of lighting. In an illumination optical system for illuminating an exposure surface, a position conjugate with the exposure surface is provided at at least one position in the illumination optical system, and a characteristic opposite to the light amount distribution of the exposure surface is provided near the conjugate position. Is provided with a correction filter.

Inventors

  • 👤 Susumu Saito
  • 👤 晋 斉藤
  • 👤 Hitoshi Suzuki
  • 👤 等 鈴木
  • 👤 Toshikazu Yoshino
  • 👤 寿和 芳野
  • 👤 Osamu Kuwabara
  • 👤 理 桑原
  • 👤 Takeshi Nishisaka
  • 👤 武士 西坂

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-01 05:26
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/70; G03F7/70058

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