Optical: systems and elements – Diffraction – Using fourier transform spatial filtering
Patent
1994-09-02
1995-09-12
Ben, Loha
Optical: systems and elements
Diffraction
Using fourier transform spatial filtering
359558, 369 4412, 369112, G02B 2746
Patent
active
054502373
ABSTRACT:
A hyper-resolution optical device which can focus a beam of light to a diameter less than the diffraction limit. The optical device has an optical system disposed on a transmissive substrate. One component in the optical system is a hyper-resolution optical component which passes or reflects light and which has a central portion which does not pass or reflect light, respectively. The hyper-resolution optical component can be integrated with the transmissive substrate. Such optical devices are particularly suitable for optical pick-up devices, laser printers, sensors.
REFERENCES:
patent: 4861128 (1989-08-01), Ishikawa et al.
patent: 4937808 (1990-06-01), Shimada et al.
patent: 5025438 (1991-06-01), Emoto
patent: 5121378 (1992-06-01), Hirose et al.
patent: 5191624 (1993-03-01), Ito et al.
patent: 5206852 (1993-04-01), Kim et al.
patent: 5231624 (1993-07-01), Finegan
patent: 5349592 (1994-09-01), Ando 369112
Hiroyuki, H., Patent Abstracts of Japan (4 Nov. 1987) vol. 11, No. 335 (P-632).
Hirose et al., Extended Abstracts (The 49th Autumn Meeting, 1988) The Japan Society of Applied Physics, No. 3, p. 838, 4a-ZD-6.
Yamanaka et al., Extended Abstracts (The 49th Autumn Meeting, 1988) The Japan Society of Applied Physics, No. 3, p. 838, 4a-ZD-7.
Kojima, T., "Aspherical plastic singlets for optical disc use" Ohyo Butsuri (1988) 57(5):762-764.
Shigeru et al., Patent Abstracts of Japan (29 Mar. 1987) vol. 15, No. 131, (P-1186). The corresponding Japanese Patent Publication No. 3-15003 is also enclosed.
Yamanaka et al., "High density recording by superresolution in an optical disk memory system" Applied Optics (1990) 29(20):3046-3051.
Tetsuya et al., Patent Abstracts of Japan (25 Sep. 1990) vol. 14, No. 445, (P-1110). The corresponding Japanese Patent Publication No. 2-177026 is also enclosed.
Hamada Toshimasa
Kato Shohichi
Matsui Sadayoshi
Nakamichi Masumi
Yamamoto Osamu
Ben Loha
Jr. John Juba
Sharp Kabushiki Kaisha
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