Clyde W - Archives & Special Collections - New Mexico State ...

5:4 Askania Kth 41, proposed optical system, general arrangement and
specifications, 20 August 1947 (58 cm x 85.5 cm)
5:4 Askania secondary temperature compensator (ref. no. OM-16), 22 November
1950 (original and 2 copies; 65 cm x 92 cm)
5:4 Askania telescope, equiv. focal length = 120 inches = 10 feet (original
drawing), 6 October 1948
5:4 Askania telescope, 10-inch diameter x 100-inch F.L. (dwg. nos. OM 40 - OM
42), 1951 (3 drawings; sizes from 61 cm x 91 cm to 61 cm x 94 cm)
5:4 Askania telescope optical system, equiv. focal length = 180 inches (15 foot
Askania) (original drawing), [25 October] 1948 (approx. 30.5 cm x 106.5 cm)
5:4 Askania tracking scope, off-axis parabolic mirror (original drawing), ca. 1948
(30.5 cm x 107 cm)
5:4 Binocular alterations, tracking telescope #1, general arrangement (WSA-ME-
4), 30 June 1947 (58 cm x 86 cm)
5:4 Binocular cassegrain for 4.5-inch telescope (original drawing), October 1948
(30.5 cm x 107 cm)
5:4 Cassegrain systems for high frame speed Askanias, drawn by C. W.
Tombaugh (No. CE801), 16 January 1952 (62 cm x 91.5 cm)
5:4 Elliptical diagonal mirror (OPT-1), 25 April 1952 (3 copies; 28 cm x 43 cm)
5:4 4-inch Cassegrain telescope, revised, sheets 1-3 of 4, Army Signal Corps
Engineering Laboratory, 5 October 1950 (3 drawings; sizes from 56 cm x 62.4
cm to 56 x 104 cm)
5:4 4-inch Cassegrain telescope for S.C.E.L. optical diagram (original drawing),
13 April 1949 (45 cm x 61 cm)
5:4 4-inch Cassegrain telescope for S.C.E.L. proposed mounting, 26 April 1949
(irregular, approx. 45 cm x 83 cm)
5:4 Modified Schmidt telescope (f5:43 Wright type), effective focal ratio 3.75, 14
February 1953 (72.5 cm x 105.5 cm)
5:4 Modified 6-foot E.F.L. Cassegrain system (ref. no. OM-17), 5 December 1950
(49.5 cm x 87.5 cm)
5:4 Off-Axis Schmidt, 12-16 inch diameter aperture, 33.85-inch focal length,
effective focal ratio = 2.82 (original drawing), 1 October 1952 (approx. 61 cm
x 92.5 cm)
5:4 Off-axis Schmidt optical system (no. CE-1198 and 35 associated drawings),
1953 (sizes from 28 cm x 43 cm to 86 cm x 169 cm)
5:4 Optical Layout of Off-Axis Schmidt (design by C. W. Tombaugh, drawn by
Cowan), 1952 (62 cm x 92.5 cm)
5:4 Optical Layout of Off-Axis Schmidt (no. CE-1231; design by C. W.
Tombaugh, drawn by Dennon), 19 December 1952 (2 copies; 61 cm x 92.5
cm)
5:4 Optical Layout of On-Axis Schmidt (no. CE-1231-2; designed by C. W.
NMSU Library/Archives & Special Collections C. W. Tombaugh Papers / Ms0407
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