EP0650133A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Integrated scanner on a common substrate
Assignee: Symbol Technologies LLC
•
Filing: 1994-09-28
•
Granted: —
•
Expires: 2014-09-28
Abstract
Abstract An integrated scanner for scanning a barcode is formed on a common substrate. The scanner may include a micro-machined mirror, a laser diode, and a detector, mounted on a single substrate or several connected substrates. Lenses can be used to focus a laser beam from the laser diode as well as expand a laser beam deflected by the micro-machined mirror. The scanner may also scan a barcode without using a micro-machined mirror by rotating the laser diode.
Inventors
- 👤 Jerome Swartz
- 👤 Miklos Stern
- 👤 Joseph Katz
- 👤 Yajun Li
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 01:48
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10554; G06K7/10594; G06K7/10683; G06K7/10702; G06K7/10603; G06K7/10633; G06K7/10643; G06K7/10653; H; H10; H10W; H10W72/00; H10W72/50; H10W72/541; H10W72/5434
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
46 words
A light scanning system formed on a common substrate comprising: a light scanner, integrated on said substrate, for scanning light across a target; and a sensor, integrated on said substrate, for detecting light reflected from said target and creating a signal representative of said detected light.
Claim 2
Dependent Claim
44 words
A light scanning system according to claim 1, wherein said light scanner includes: a light source, integrated on said substrate, for producing a light beam; and a deflector, integrated on said substrate, for deflecting said light beam across said target in a desired pattern.
Claim 3
Dependent Claim
27 words
A light scanning system according to claim 2, wherein said light scanner further includes: a first lens for focusing the light beam produced by the light source.
Claim 4
Dependent Claim
22 words
A light scanning system according to claim 3, wherein said light source is aligned with an optical axis of said first lens.
Claim 5
Dependent Claim
22 words
A light scanning system according to claim 3, wherein said light source is offset from an optical axis of said first lens.
Claim 6
Dependent Claim
26 words
A light scanning system according to claim 3, wherein said light scanner further includes: a second lens for focusing the light beam deflected by said deflector.
Claim 7
Dependent Claim
390 words
A light scanning system according any of the claims, wherein said first lens is a positive lens and said second lens is a negative lens, wherein preferably said light scanner further includes: a lens for focusing the light beam deflected by said deflector, wherein preferably said deflector comprises a micro-machined scan module, wherein preferably said micro-machined scan module comprises: a scanning mirror mounted in a center of said sensor; hinges connected to said detector to allow said detector and said scanning mirror to rotate about a rotation axis; and a frame secured to said substrate for supporting said hinges, wherein preferably said micro-machined scan module comprises: an electrode; a support mounted on said electrode; and a mirror element mounted at one end on said support, and wherein a voltage applied between said electrode and mirror element bends said mirror element, wherein preferably said micro-machined scan module comprises: a scanning mirror; hinges connected to said scanning mirror to allow said scanning mirror to rotate about a rotation axis; and a frame secured to said substrate for supporting said hinges, wherein preferably said rotation axis is perpendicular to a path of said focused light beam from said light source, wherein preferably said light source comprises a laser diode focusing module mounted on a first portion of said substrate, wherein preferably said frame is secured on a second portion of said substrate, which is parallel to said first portion of said substrate, wherein preferably said frame is secured on a second portion of said substrate, which is sloped with respect to said first portion of said substrate, wherein preferably said frame is mounted on said first portion of said substrate, wherein preferably said hinges include a shape memory alloy, wherein preferably said shape memory alloy is titanium nickel, wherein preferably said light scanner further includes: electrodes for generating an electrostatic force by applying a voltage between each of said electrodes and said scanning mirror, wherein preferably said electrodes include substrate electrodes disposed under said scanning mirror, wherein preferably said electrodes further include upper electrodes disposed above said scanning mirror, wherein preferably said electrodes include upper electrodes disposed above said scanning mirror, wherein preferably said light scanner includes: a light source for producing a light beam; and hinges connected to said light source to allow said light source to rotate about a rotation axis.
Claim 8
Dependent Claim
59 words
A micro-machined mirror for scanning a light beam from an incident path to a desired pattern in a barcode scanner mounted on a common substrate, comprising: a reflector for reflecting a light beam; hinges connected to said reflector to allow said reflector to rotate about a rotation axis; and a frame secured to said substrate for supporting said hinges.
Claim 9
Dependent Claim
44 words
A micro-machined mirror according to claim 8 , wherein said hinges includes a shape memory alloy, wherein preferably said shape memory alloy is nickel titanium, and further preferably comprising an electrode for generating an electrostatic force to rotate the reflector around said rotation axis.
Claim 10
Independent Claim
57 words
A method of manufacturing a scanner on a common substrate comprising the steps of: (a) forming a light diode for producing a light beam; (b) mounting said light diode to said common substrate; (c) forming a light scanner for scanning the light beam in a desired pattern; and (c) mounting said light scanner to said common substrate.
Claim 11
Independent Claim
47 words
A method of manufacturing a scanner on a common substrate comprising the steps of: (a) forming a light diode for producing a light beam on said common substrate; and (b) forming a light scanner for scanning the light beam in a desired pattern on said common substrate.
Claim 12
Dependent Claim
23 words
A light scanning system formed on a common substrate comprising: a light scanner, integrated on said substrate, for scanning light across a target.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.