Title:
TRANSMISSION TYPE SCREEN
Document Type and Number:
Japanese Patent JP2005017919
Kind Code:
A
Abstract:
To easily provide a transmission type screen which less absorbs light and has the gain reduction reduced and controls white scattering to have optical characteristics adequate as a screen and uses microlenses and has a wide area and allows the material cost and the working cost to be made inexpensive.
A transmission type screen 10 has a microlens array part which is arranged on at least one surface of a light-transmissive substrate and has a plurality of unit lenses 11 arranged two-dimensionally like a matrix, and each unit lens 11 has an approximately semicircularly projecting shape in a sectional view, and unit lenses 11 are so arranged that side surfaces of adjacent unit lenses are brought into direct contact with each other.
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Inventors:
EBINA KAZUYOSHI
KAGOTANI AKIHITO
KAGOTANI AKIHITO
Application Number:
JP2003185319A
Publication Date:
January 20, 2005
Filing Date:
June 27, 2003
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
G02B3/00; G02B3/02; G02B5/02; G03B21/62; G03B21/625; (IPC1-7): G03B21/62; G02B3/00; G02B3/02; G02B5/02
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama