Thin retroreflective marker for data storage cartridge

Details Thin retroreflective marker for data storage cartridge Thin retroreflective marker for data storage cartridge

1997-04-03

1999-11-16

Faber, Alan

Dynamic magnetic information storage or retrieval

General recording or reproducing

Recording-or erasing-prevention

360133, 360 71, G11B 1904

Patent

active

059868384

ABSTRACT:
A cartridge for a data storage disk drive has a thin retroreflective marker. Light from a source is reflected from the marker almost exactly on its incident path. A planar light shaping optical structure such as a holographic light shaping diffuser (LSD) ruled or blazed diffraction grating, holographic diffraction grating, binary optics or holographic diffraction grating directs light to the detector. The LSD has degrees of angular diffusion in different orthogonal axes. This property makes possible unique identification of different types of cartridges.

REFERENCES:
patent: 3718078 (1973-02-01), Plummer
patent: 4633451 (1986-12-01), Ahn et al.
patent: 4762292 (1988-08-01), D'Anci
patent: 5038359 (1991-08-01), Pepper
patent: 5325243 (1994-06-01), Rath et al.
patent: 5352243 (1994-10-01), Rath et al.
patent: 5491586 (1996-02-01), Phillips
patent: 5638228 (1997-06-01), Thomas
Jacobs, S.F., "Experiments with retrodirective arrays", Optical Engineering, 1982, 21(2), 281-283.
Rennilson, J. "Retroreflection--What is it and how is it used?", ASTM Standardization News, Feb. 1982.
"Factor affecting the metrologyof retroreflective materials", Applied Optics, 1980, 19(8).
Walker, J. "The Amateur Scientist: Wonders with the retroreflector, a mirror that removes distortion from a light beam", Scientific American, 1988, 258(1), 96-99.
Reflexite Corporation Brochure NA1010, "Refectors for Photoelectric Controls", Apr. 1993, 4 pages.
Leaner, J.S., Shie, R., Petersen, J., "Holographic Light Shaping Diffuses", presented at The Aerospace Lighting Instittue, Advanced Seminar, Feb. 1994, Los Angeles, CA, 4 pages.
Physical Optics Corporation Brochure JL1-493, "Light Shaping Diffusers", 2 pages.
The Optometrics Group Catalog, "Optical Components & Instruments Catalog--Gratings", 1996 28-35.
Kathman, A. et al., "Binary Optics: New Diffractive Elements for the Designer's Tool Kit", The Photonics Design & Applications Handbook.RTM., Laurin Publishing Co., Inc., 1994 (Book 3), H358-H360.
Loewen, E.G., "Diffraction Gratings: Selection of Size and Type for Different Applications", The Photonics Design & Applications Handbook.RTM., Laurin Publishing Co., Inc., 1994 (Book 3), H362-H365.
Faklis, D. et al., "Optical Design/Diffractive Lenses: Taking Advantage of Diffractive Optics to Reduce Size, Weight and Cost", The Photonics Design & Applications Handbook.RTM., Laurin Publishing Co., Inc., 1994 (Book 3), H386-H390.
"Experiments with Retroreflective Arrays", Optical Engineering, vol. 21, No. 2, Mar./Apr. 1982.
"Factor Affecting the Metrology of Retroreflective Materials"., Applied Optics, vol. 19, No. 8, Apr. 1980.
"The Amateur Scientist: Wonders with the Retroreflective, a mirror that removes Distortion From A Light Beam", Scientific American, Jan. 1988, vol. 258, No. 1, pp. 96-99, Jearl Walker.
PCT International Search Report dated Mar. 19, 1998, 4 pages.
Patent Abstracts of Japan, vol. 008(163), Jul. 27, 1984, of Publication No. JP 59 058630 A, published Apr. 4, 1984.

Affiliated with

Also associated with

Rating

Thin retroreflective marker for data storage cartridge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thin retroreflective marker for data storage cartridge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin retroreflective marker for data storage cartridge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1331900