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Parallax Technology, Inc.
Last updated March 12, 2021

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  • List of optics & optical instruments for sale

    Parallax Technology manufactures, sells and services CO2 lasers. Some items on this page are new and some are our 'used/surplus' stuff. Please consider them accordingly.

    Other surplus lists | Surplus items return policy

    More stuff added frequently - Prices do not include shipping

    Miscellaneous Microscope parts. Buy the table top !
    Stemi Stereo Microscope + video / visual view. Without stand
    (can buy stand from Edmund Scientific)
    Also many other pieces as seen here Micrometer parts Photo
    1 $400

    Miscellaneous optics. Buy the table top !
    Contains the following plus a lot more
    Lenses, positive meniscus
    diameters 41, 20, 30, 30 mm
    focal length 41, 20, 30, 30 mm respectively

    Glan Prism, qty 3
    Rhomb Prism, 55x30x25 (A-B-C)
    Dove Prism, B=76, D=25, A=C=15
    plus many other smaller prisms (right angle,Dispersion, etc.)

    BK7 window 70 mm dia x 5 mm thk

    Concave front surface mirrors;
    50 mm dia x 250 mm Focal Length
      also 50 mm x 100 mm FL
      also 50 mm x 75 mm FL
      also 100 mm dia x 75 mm FL
      also 75 mm dia x 500 mm FL
      also 50 mm dia x 400 mm FL

    Qty six, 0.5 inch dia. x 0.02 thk Sapphire windows

    Many Color Filters, notch filters and Neutral Density (ND) Filters
    (some filters have oxidized surface)

    Laser mirrors, Windows, miscellaneous lenses and optics

    All together about 40 little boxes with 1/2 of them more than 1 piece in them !

    All $400

    Long-Travel High-Resolution Fowler Micrometers Photo
    Large Micrometer Head Double Figures, 0-1" Range,
    0.0001" Graduation, Plain Thimble. Bought for $340 each.
    2 $98 ea
    Gratings Photo
    Ruled Gratings, glass, not for intra cavity use
    60 x 60 mm, 148 grooves per mm, 5 Micron Blaze
    60 x 60 mm, 50 grooves per mm, 10 Micron Blaze
    50 x 50 mm, 147.5 grooves per mm, 4.0 Micron Blaze
    50 x 50 mm, 1775 grooves per mm, visible use.
    All 4 $225
    Glass Color Filters from Corning Glass Photo
    2" x 2" color filters, assortment of 43 pieces
    comes with complete transmission curves book
    set of 43 $600

    Van Keuren Monochromatic Light model C2. Priced to sell. Van Keuren Monochromatic Light Photo
    Perfect working condition.
    New model C2 sells for $755.
    1 $160

    Scope Camera, HP oscilloscope camera model 197A
    with HP model 10376A camera adapter and
    Polaroid Land Camera Scope camera Photo

    1 $200

    Large holographic gratings, sub master, 20 cm diameter (actually 203 mm), on 30 mm thick glass substrate, flat
    One at 2400 lines per mm, 15.5 cm diameter ruled area
    One at 1200 lines per mm, 19.5 cm diameter ruled area
    Used for Holography 20 cm round GratingPhoto

    each $1,500 / sold

    Large Photo multiplier tube, 5 inch diameter, RCA type 4522, head-on , Spectral response 35ET , 14 stage, 3000V complete with housing and mu shield PMTPhoto

    1 $300
    Photo multiplier tube, EMI type 49558B, 2 inch diameter head-on type, complete with housing (Quanta Corporation model 6005) 1 $200
    Photomultiplier power supply,
    Pacific Photometric Instruments, Model 203
    19 inch rack mount, negative 0-to-2000 VDC @ 5 mA with fine/coarse voltage adjustment and analog display
    1 $500

    Beam splitters for Ruby Laser (6943A). 1.00 inch diameter x 3/8" thick
    optical flats Photo

    One side 50% +/- 2% Reflectivity at 6943A @ 45 degree S polarization,
    and other side
    AR coated for 6943A at 45 degree S polarization.

    The other
    One side 80% +/- 2% Reflectivity at 6943A @ 45 degree S polarization,
    AR coated for 6943A at 45 degree S polarization.

    each $100
    Photo multiplier power supply,

    - Model 205B-05R, 19 inch rack mount, digital display, internal / remote control (top of the line model, excellent condition)

    1 $750

    Optical Flats, complete set of Four
    optical flats Photo
    One 3 inch diameter by 0.625 thk, Felt Polished to 1V, 1C or Lambda/20
    Two 2 inch x 0.625 thk, FP to 1C, 2C
    One 2 inch x 0.625 thk, FP to 3V, 3V (small chip in the corner)
    Manufacturer: The Van Keuren Co.

    (the accuracy of an optically flat surface is recorded in micro inch.
    Example:1V = 0.000001 inch
    (Mitutoyo sells this set for $1,200, Edmund Scientific sells Optica Flats for ~$260 each !)

    Set of 4 $500

    Optical Flat, 1.00 inch Fused Quartz, felt polished. 25 mm optical flat Photo
    Edmund Scientific. 2 micro inch accuracy.
    1 $80
    Indium Antimonide detector with Liquid Nitrogen cooled dewar 1 $750

    Tantalum wire, 0.003" diameter
    25 feet $74
    Atomergic Chemetals,
    TITANIUM DIOXIDE TiO2 single crystal boule
    3/4 inch dia x 2 inch long Photo
    1 $150
    TUNGSTEN (W) single crystal (110) orientation, 1/4 x 2 inch long 1 $150
    Scanner; General Scanning model G100-PDPhoto
    0.25 inch sq x 0.040 inch thk (6 mm sq x 1 mm thk) square mirror.
    No Driver or manual, just as you see it.


    MOLYBDENUM (Mo) single crystal, (100) orientation, 1/2 dia x 1 inch long 1 $150

    Germanium mirror, 50 mm diameter, 5 mm thk Photo
    R1=65%, R2=AR for 10.6 um, perfect condition.
    1 $200
    Jarrell Ash Czerny-Turner 3/4 m Monochromator, auto scan 500-50 A/min & manual scan 1 $1500

    Silicon mirrors, 50 mm diameter, 5 mm thk Photo
    R1 Max R at 10.6 um, R2=UC.
    3 $98 ea
    Monochromator, Jarrell Ash model 82-410, 1/4 m Ebert, Dual Grating (one 2360 grooves per mm, 240 nm blaze and one 590 groove per mm, ?? blaze), manual scan.
    Includes Mercury calibration lamp and power supplyPhoto

    LASERMETRICS, POCKEL CELL, complete package; Series 1401 KD*P crystal, mounted on Lasermeterics MGC145 Gimbal mount + Model 5016 Power Supply / Timing Logic + High Voltage Switching Module 5016 + mounted Glan-Air polarizer. 1$1500

    Hamamatsu R1193U-02 biplanar vacuum phototube. Photo
    What is this?
    This is an ultra fast uv photon detector (like a UV Enhanced Photomultiplier without the dynode chain)
    Spectral Response Range 1850 to 6500 Angstrom
    Photocathode Diameter 20 mm
    Rise Time 0.27 ns
    Fall Time 0.10 ns
    Max. Input Light Energy Density [W/mm2] 0.125
    Max. Average Cathode Current 50 A
    Max. Operating Temperature 75 C
    Photocathode Area 314 mm2
    Photocathode Material Sb-Cs
    Peak Cathode Current 1:00 A
    Peak Wavelength 340 nm
    Anode Form Mesh
    Maximum Anode Supply Voltage 2.5 kv
    Typ. Luminous Sensitivity 50 A/lm
    Maximum Dark Current 50 nA
    - -
    Find a lot more about R1193U specifications at Hamamatsu's page.
    1 $300
    TEA CO2 laser head for research purposes. 4" dia x 36" long glass pipe with internal Brewster windows, 16" long modified Rogowski profile electrodes + preionizer rods. FREE to educational institutions. 1 $1000
    Multi atmosphere CO2 TEA laser head. Machined from Aluminum for 10 atmosphere operation at 1 ppm. FREE to educational institutions. 1 $1300

    Table of Contents

    CO2 Lasers | Re-gas & other service prices | Beam Delivery Optics | Pictures of lasers | Frequently asked questions

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    Parallax Technology, Inc.