Apparatus and method for directing a beam of light to a surface

Details Apparatus and method for directing a beam of light to a surface Apparatus and method for directing a beam of light to a surface

1997-02-05

1998-10-27

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359837, 369112, G02B 2608

Patent

active

058284826

ABSTRACT:
An apparatus is used with an optical disk drive for directing a beam of light to a surface of an optical disk. The apparatus has a beam shifter configured to direct the beam from a first path (along which the beam is generated) to a second path which is substantially parallel to the first path. An imaging lens is configured to direct the beam from the second path along a third path which passes near the front focal point of an objective lens (located near the surface of the disk). The third path and the first path diverge at an angle based on the distance separating the first and second paths.

REFERENCES:
patent: 4515447 (1985-05-01), Weimer et al.
patent: 4633450 (1986-12-01), Gueugnon
patent: 4753521 (1988-06-01), Deserno
patent: 4794586 (1988-12-01), Korth
patent: 4965780 (1990-10-01), Lee et al.
patent: 4987292 (1991-01-01), Howard
patent: 5004307 (1991-04-01), Kino et al.
patent: 5020040 (1991-05-01), Lee
patent: 5105408 (1992-04-01), Lee et al.
patent: 5112662 (1992-05-01), Ng
patent: 5115363 (1992-05-01), Khan et al.
patent: 5120603 (1992-06-01), Schmidt
patent: 5121256 (1992-06-01), Corle
patent: 5125750 (1992-06-01), Corle et al.
patent: 5128216 (1992-07-01), Ng
patent: 5153870 (1992-10-01), Lee et al.
patent: 5161134 (1992-11-01), Lee
patent: 5182444 (1993-01-01), Howard
patent: 5191563 (1993-03-01), Lee et al.
patent: 5197050 (1993-03-01), Murakami et al.
patent: 5202880 (1993-04-01), Lee et al.
patent: 5223710 (1993-06-01), Pavlak
patent: 5232570 (1993-08-01), Haines et al.
patent: 5243241 (1993-09-01), Wang
patent: 5247510 (1993-09-01), Lee et al.
patent: 5253245 (1993-10-01), Rabedeau
patent: 5255260 (1993-10-01), Yamada et al.
patent: 5260928 (1993-11-01), Lee et al.
patent: 5288997 (1994-02-01), Betzig et al.
patent: 5295122 (1994-03-01), Murakami et al.
patent: 5307336 (1994-04-01), Lee et al.
patent: 5381402 (1995-01-01), Lee et al.
patent: 5432763 (1995-07-01), Campbell et al.
patent: 5445011 (1995-08-01), Ghislain et al.
patent: 5450379 (1995-09-01), Fujimori et al.
patent: 5452283 (1995-09-01), Lee et al.
patent: 5467238 (1995-11-01), Lee et al.
patent: 5470627 (1995-11-01), Lee et al.
patent: 5486970 (1996-01-01), Lee et al.
patent: 5497359 (1996-03-01), Mamin et al.
patent: 5504731 (1996-04-01), Lee et al.
patent: 5541888 (1996-07-01), Russell
patent: 5602819 (1997-02-01), Inagaki et al.
patent: 5602820 (1997-02-01), Wickramasinghe et al.
patent: 5617387 (1997-04-01), Morita et al.
patent: 5631893 (1997-05-01), Kang et al.
Betzig, E., et al., "Near-field magneto-optics and high density data storage", Appl. Phys. Lett., vol. 61, No. 2, pp. 142-144, Jul. 13, 1992.
Maeda, F., et al., "High density optical disk system using a new two-element lens and a thin substrate disk", Technical Digest, 1996 International Symposium on Optical Memory and Optical Data Storage, pp. 342-344, 1996. (no month).
Mansfield, S., et al., "High-numerical-aperture lens system for optical storage", Optics Letters, vol. 18, No. 4, pp. 305-307, Feb. 15, 1993.
Mansfield, S., et al., "Solid immersion microscope", Appl. Phys. Lett., vol. 57, No. 24, pp. 2615-2616, Dec. 10, 1990.
Yamamoto, K., et al., "A 0.8 Numerical Aperture Two Element Objective Lens for the Optical Disk", Technical Digest, 1996 International Symposium on Optical Memory and Optical Data Storage, pp. 345-347, 1996. (no month).
Hayashi, S., et al., "Solid Immersion Lens for Optical Storage," Stanford University, G.L. Report No. 5258, Feb. 1995 (9 page document).
Ichimura, Isao, et al., "High Density Optical Recording Using a Solid Immersion Lens," Stanford University, G.L. Report No. 5371, Nov. 1995, pp. 1-22 and Figs. 1-17.
Mamin, H.J., et al., "High density optical recording with a flying solid immersion lens," presented at the Optical Data Storage Conference in San Diego, California in May, 1995, pp. 1-2.
Terris, B.D., et al. "Near-field optical data storage using a solid immersion lens," Applied Physics Letters, 65 (4), Jul. 25, 1994, pp. 388-390.

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