TopBox Technical Manual

Optical Components

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< Electronics Design ] [ Optical Design >

  • Diagonal Pickoff Mirror
    Mfg: ProtoStar
    Description:
    QM-130 ULS Quartz secondary mirror; 1.30" minor axis
    0.75" Newtonian-style hub and holder assembly
    Catalog (pdf)
    Product Manual (pdf)
  • Savart plates
    Mfg: Karl Lambrecht Corp.
    Description: SAVART PLATE MADE OF SCHLIEREN FREE CALCITE, 50 +/- .25 MM OUTSIDE DIAMETER, MADE OF TWO PLATES OF CALCITE EACH 7 +/- .1 MM THICK, CEMENTED, UNCOATED, MOUNTED IN A 2.000 +/- .005 INCHES OUTSIDE DIAMETER, 1.000 +/- .005 INCH LONG BLACK ANODIZED ALUMINUM CELL WITH MARKINGs TO SHOW DIRECTION OF BEAM DISPLACEMENT.
    NOTE: BEAM DEVIATION OF THE CEMENTED ASSEMBLY WILL BE LESS THAN 3 ARC MINUTES
    Design Drawing (pdf)
  • Bandpass Filters
    Mfg: Custom Scientific, Inc.
    Vendor: Santa Barbara Instrument Group, Inc.
    Description: 50mm UBVRI Photometric Filters,
    Johnson-Cousins standard system (Bessell, 1990, PASP, 102, 1181) (pdf)
    Transmission curves:
    UBVRI Set  (gif)
    U ,  B ,  V ,  R ,  I  (gif)
  • SBIG STL-1001E CCD Camera
    Mfg: Santa Barbara Instrument Group, Inc.
    Catalog Description (pdf)
    Mechanical Dimensions (pdf)
  • Apogee ALTA U42 CCD Camera
    Mfg: Apogee Instruments, Inc.
    Catalog Description (pdf)
    Mechanical Dimensions (pdf)

Hint for Mounting Filters

Since the UBVRI filters are about 5 mm thick and the casings are about 6.5 mm deep, retainer rings are necessary to hold the filters securely in place. A suitable ring can be made by forming a 154-mm length of #22 black insulated stranded copper wire into the bottom of the casing.


Last modified: Nov 9, 2012
David McDavid

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