SE0002145D0 - IR laser pointer - Google Patents

IR laser pointer

Info

Publication number
SE0002145D0
SE0002145D0 SE0002145A SE0002145A SE0002145D0 SE 0002145 D0 SE0002145 D0 SE 0002145D0 SE 0002145 A SE0002145 A SE 0002145A SE 0002145 A SE0002145 A SE 0002145A SE 0002145 D0 SE0002145 D0 SE 0002145D0
Authority
SE
Sweden
Prior art keywords
laser diode
electric current
light
causing
power source
Prior art date
Application number
SE0002145A
Other languages
Swedish (sv)
Other versions
SE0002145L (en
SE522279C2 (en
Original Assignee
Gs Dev Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gs Dev Ab filed Critical Gs Dev Ab
Priority to SE0002145A priority Critical patent/SE522279C2/en
Publication of SE0002145D0 publication Critical patent/SE0002145D0/en
Priority to AU2001264498A priority patent/AU2001264498A1/en
Priority to PCT/SE2001/001293 priority patent/WO2001095047A1/en
Publication of SE0002145L publication Critical patent/SE0002145L/en
Publication of SE522279C2 publication Critical patent/SE522279C2/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/18—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective
    • G02B27/20—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical projection, e.g. combination of mirror and condenser and objective for imaging minute objects, e.g. light-pointer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042—Electrical excitation ; Circuits therefor
    • H01S5/0428—Electrical excitation ; Circuits therefor for applying pulses to the laser
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H01S5/06216—Pulse modulation or generation

Abstract

An IR laser pointer comprises an IR laser diode (12), a power source (14) for providing electric current, and an energizing circuit (13, 15) for applying electric current from the battery to the IR laser diode for causing the laser diode to emit light. The energizing circuit is operable to apply a pulsating electric current form the power source to the IR laser diode for causing the IR laser diode to emit pulses of light. Control means (16, 17) are provided for adjusting the intensity of the light spot generated by the IR laser diode by pulse width modulation of the pulsating electric current.
SE0002145A 2000-06-08 2000-06-08 IR laser pointers with variable light intensity SE522279C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0002145A SE522279C2 (en) 2000-06-08 2000-06-08 IR laser pointers with variable light intensity
AU2001264498A AU2001264498A1 (en) 2000-06-08 2001-06-08 Ir laser pointer
PCT/SE2001/001293 WO2001095047A1 (en) 2000-06-08 2001-06-08 Ir laser pointer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0002145A SE522279C2 (en) 2000-06-08 2000-06-08 IR laser pointers with variable light intensity

Publications (3)

Publication Number Publication Date
SE0002145D0 true SE0002145D0 (en) 2000-06-08
SE0002145L SE0002145L (en) 2001-12-09
SE522279C2 SE522279C2 (en) 2004-01-27

Family

ID=20280018

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0002145A SE522279C2 (en) 2000-06-08 2000-06-08 IR laser pointers with variable light intensity

Country Status (3)

Country Link
AU (1) AU2001264498A1 (en)
SE (1) SE522279C2 (en)
WO (1) WO2001095047A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081631A (en) * 1991-04-03 1992-01-14 Eastman Kodak Company Direct modulation of laser diodes for radiographic printers
US5473464A (en) * 1994-07-15 1995-12-05 Metrologic Instruments, Inc. Accessory device for modulating the laser output of a pen-clip actuatable laser pointer
US5515392A (en) * 1995-01-05 1996-05-07 Eastman Kodak Company Laser diode control circuit with power supply compensation network
DE29719984U1 (en) * 1997-11-11 1998-04-02 Herchet Volker Portable and mobile electronic miniature circuit for generating nearly parallel light beams by semiconductor lasers (laser diodes)

Also Published As

Publication number Publication date
SE0002145L (en) 2001-12-09
SE522279C2 (en) 2004-01-27
AU2001264498A1 (en) 2001-12-17
WO2001095047A1 (en) 2001-12-13

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Legal Events

Date Code Title Description
NUG Patent has lapsed