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Machine translation
1. (WO1994027177) OPTICAL INSTRUMENT AND OPTICAL ELEMENT THEREOF
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1994/027177    International Application No.:    PCT/GB1994/000195
Publication Date: 24.11.1994 International Filing Date: 02.02.1994
IPC:
G02B 27/00 (2006.01), G02B 27/02 (2006.01), G02B 27/44 (2006.01)
Applicants: FREEMAN, Robin, John [GB/GB]; (GB)
Inventors: FREEMAN, Robin, John; (GB)
Agent: LOUGHREY, Richard, Vivian, Patrick; Hughes Clark & Co., 114/118 Southampton Row, London WC1B 5AA (GB)
Priority Data:
9310077.4 17.05.1993 GB
Title (EN) OPTICAL INSTRUMENT AND OPTICAL ELEMENT THEREOF
(FR) INSTRUMENT OPTIQUE ET SON ELEMENT OPTIQUE
Abstract: front page image
(EN)An optical instrument is described in which a diffractive element (25) is located at a focal or image plane (3) of the instrument and the diffractive element (25) is effective to produce an array (6) of a plurality of exit pupils at a viewing position for the instrument and thereby to form an enlarged exit pupil for the instrument.
(FR)L'invention concerne un instrument optique dans lequel un élément diffractif (25) est placé au niveau d'un plan d'image ou plan focal (3) de l'instrument; cet élément diffractif (25) est efficace pour produire un réseau (6) d'une pluralité de pupilles de sortie à une position d'observation de l'instrument et par conséquent pour former une pupille de sortie élargie pour l'instrument.
Designated States: CA, JP, KR, US.
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: English (EN)
Filing Language: English (EN)