-
公开(公告)号：DE60111999T2
公开(公告)日：2006-05-24
申请号：DE60111999
申请日：2001-05-17
Applicant: KONICA MINOLTA OPTO INC
Inventor： OTA KOHEI , ARAI NORIKAZU
IPC: G11B7/1374 , G02B3/08 , G02B5/18 , G02B13/00 , G11B7/00 , G11B7/125 , G11B7/135 , G11B7/1353
Abstract: An optical pickup apparatus for at least two kinds of optical information recording media, comprises a first light source; a second light source; an optical converging system; and a photo detector. An optical element of the optical converging system comprises a first region including an optical axis and a second region adjoining the first region and locating at the outside of the first region, the first region is a refractive surface and the second region is a diffractive surface. When a first light flux passes through the second region, the light amount of n-th order diffracted ray of the first light flux is larger than that of any other order diffracted ray of the first light flux, and when a second light flux passes through the second region of the optical element, the light amount of n-th order diffracted ray of the second light flux is larger than that of any other order diffracted ray of the second light flux, where n is an integer except 0.
-
公开(公告)号：GB0518121D0
公开(公告)日：2005-10-12
申请号：GB0518121
申请日：2004-12-02
Applicant: KONICA MINOLTA OPTO INC
IPC: G02B5/18 , G02B13/00 , G02B13/18 , G02B27/42 , G11B7/00 , G11B7/1353 , G11B7/1369 , G11B7/139 , G11B7/1392
Abstract: A diffractive optical element, comprises a first diffractive structure to generate n 11 -th order diffracted ray when a first light flux having lambda1 (nm) of a wavelength comes in and to generate n 21 -th order diffracted ray (n 11 .>=n 21 ) when a second light flux having lambda2 (nm) (lambda2>lambda1) comes in; and a second diffractive structure to generate n 12 -th order diffracted ray when the first light flux comes in and to generate n 22 -th order diffracted ray (n 12 .>=n 22 ) when the second light comes in. The diffractive optical element satisfies the following formula: deltaphi A12 <>deltaphi B12 , where deltaphi A12 ={n 11 .lambda 1 /(N 11 -1)}/{n 21 .lambda 2 /(N 21 -1)}, and deltaphi B12 ={n 12 .lambda 1 /(N 12 -1)}/{n 22 .lambda 2 /(N 22 -1)}, wherein N 11 , N 21 are refractive index of the first diffractive structure respectively for lambda 1 and lambda 2 , and N 12 , N 22 are refractive index of the second diffractive structure respectively for lambda 1 and lambda 2 .
-
公开(公告)号：AT300085T
公开(公告)日：2005-08-15
申请号：AT01304393
申请日：2001-05-17
Applicant: KONICA MINOLTA OPTO INC
Inventor： OTA KOHEI , ARAI NORIKAZU
IPC: G11B7/1374 , G02B3/08 , G02B5/18 , G02B13/00 , G11B7/00 , G11B7/125 , G11B7/135 , G11B7/1353
Abstract: An optical pickup apparatus for at least two kinds of optical information recording media, comprises a first light source; a second light source; an optical converging system; and a photo detector. An optical element of the optical converging system comprises a first region including an optical axis and a second region adjoining the first region and locating at the outside of the first region, the first region is a refractive surface and the second region is a diffractive surface. When a first light flux passes through the second region, the light amount of n-th order diffracted ray of the first light flux is larger than that of any other order diffracted ray of the first light flux, and when a second light flux passes through the second region of the optical element, the light amount of n-th order diffracted ray of the second light flux is larger than that of any other order diffracted ray of the second light flux, where n is an integer except 0.
-
公开(公告)号：DE60018735D1
公开(公告)日：2005-04-21
申请号：DE60018735
申请日：2000-01-18
Applicant: KONICA MINOLTA OPTO INC
Inventor： ARAI NORIKAZU , KOJIMA TOSHIYUKI , KIRIKI TOSHIHIKO , OTA KOHEI , SAITO SHINICHIRO
Abstract: An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source (11) for emitting first light flux having a first wavelength; a second light source (12) for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system (1) having an optical axis and a diffractive portion, and a photo detector (30); wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted ray of the second light flux, where n stands for an integer other than zero.
-
公开(公告)号：AT291269T
公开(公告)日：2005-04-15
申请号：AT01121549
申请日：2000-01-18
Applicant: KONICA MINOLTA OPTO INC
Inventor： ARAI NORIKAZU , KOJIMA TOSHIYUKI , KIRIKI TOSHIHIKO , OTA KOHEI , SAITO SHINICHIRO
Abstract: An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source (11) for emitting first light flux having a first wavelength; a second light source (12) for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system (1) having an optical axis and a diffractive portion, and a photo detector (30); wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted ray of the second light flux, where n stands for an integer other than zero.
-
Patent Agency Ranking
公开(公告)号：HK1026977A1
公开(公告)日：2001-03-02
申请号：HK00106050
申请日：2000-09-25
Applicant: KONICA MINOLTA OPTO INC
Inventor： ARAI NORIKAZU , KOJIMA TOSHIYUKI , KIRIKI TOSHIHIKO , OTA KOHEI , SAITO SHINICHIRO
Abstract: An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source (11) for emitting first light flux having a first wavelength; a second light source (12) for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system (1) having an optical axis and a diffractive portion, and a photo detector (30); wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted ray of the second light flux, where n stands for an integer other than zero.
-
27.发明专利
公开(公告)号：MY149133A
公开(公告)日：2013-07-15
申请号：MYPI20085269
申请日：2007-06-27
Applicant: KONICA MINOLTA OPTO INC
Inventor： HIDEKI KAWAI
IPC: C03C19/00
Abstract: A METHOD FOR FABRICATING A GLASS SUBSTRATE CONTAINING SiO? AS A MAIN INGREDIENT THEREOF AND HAVING A UNIFORM AND MINUTE PATTERN OF STRIPES FORMED ON THE SURFACE THEREOF BY ULTRAPRECISION POLISHING INCLUDES A STEP OF INSPECTING WHETHER OR NOT, AT THE TOPMOST SURFACE PORTION OF THE GLASS SUBSTRATE AFTER POLISHING, A GIVEN PROPERTY OF A BOUND ENERGY OF THE Si ATOM WITH RESPECT TO THE ELECTRONS OCCUPYING A 2P ORBIT AS DETERMINED BY XPS IS EQUAL TO OR LESS THAN A PREDETERMINED VALUE, AND THE GIVEN PROPERTY IS A SHIFT AMOUNT OF THE BOUND ENERGY OR A HALF-VALUE WIDTH OF THE BOUND ENERGY DISTRIBUTION, THE PREDETERMINED VALUE IS 0.10 EV OR 2.15 EV, RESPECTIVELY.
-
公开(公告)号：AT557389T
公开(公告)日：2012-05-15
申请号：AT01304014
申请日：2001-05-02
Applicant: KONICA MINOLTA OPTO INC
Inventor： KIMURA TOHRU , OTA KOHEI
-
29.发明专利
公开(公告)号：MY145034A
公开(公告)日：2011-12-15
申请号：MYPI20085267
申请日：2007-06-27
Applicant: KONICA MINOLTA OPTO INC
Inventor： HIDEKI KAWAI
IPC: G11B5/84
Abstract: 21 METHOD FOR FABRICATING A GLASS SUBSTRATE, @MOD FOR FABRICATING A MAGNETIC DISK, AND MAGNERIC DISK. ABSTRACT A METHOD FOR MANUFACTURING A GLASS SUBSTRATE WHICH HAS A UNIFORM AND MINUTE 5 PATTERN OF STRIPES FORMED ON THE SURFACE THEREOF BY ULTRAPRECISION POLISHING, AND WHICH ALLOWS THE RECORDING CAPACITY OF A MAGNETIC DISK TO BE INCREASED, INCLUDES AN INSPECTING STEP BEFORE THE GLASS SUBSTRATE IS SUBJECTED TO ULTRAPRECISION POLISHING, WHETHER THE YOUNG'S MODULUS ES IN TOPMOST PART AS DETERMINED BY THE NANOINDENTATION METHOD AND THE YOUNG'S MODULUS EG AS DETERNIFFIED BY ULTRASORIIC 10 RESONANCE FULFILL THE INEQUALITY 0.8EGA
-
公开(公告)号：DE602004032021D1
公开(公告)日：2011-05-12
申请号：DE602004032021
申请日：2004-05-10
Applicant: KONICA MINOLTA OPTO INC
Inventor： ATARASHI YUICHI , MORI NOBUYOSHI , KOGO SHOJI , SANO EIGO
-
-
-
-
-
-
-
-
-
Search Results
4244
records
(took 0.027 seconds)
