Nachet binocular, dissecting, compound microscope
Date1872-1880
Inventory Number1147a
ClassificationMicroscope
Subject
Maker
A. Nachet
1880 - 1890
Maker
Nachet et Fils (I)
fl. 1862 - 1880
User
Museum of Comparative Zoology
founded 1859
Cultural Region
Place of Origin
Dimensionsmicroscope: 30 × 19.7 × 16 cm (11 13/16 × 7 3/4 × 6 5/16 in.)
blue board box, with 1147a-c: 32.4 × 22.9 × 27.3 cm (12 3/4 × 9 × 10 3/4 in.)
blue board box, with 1147a-c: 32.4 × 22.9 × 27.3 cm (12 3/4 × 9 × 10 3/4 in.)
Material
AccessoriesOne objective # 1 with 11.5 x 0.45 mm thread; 2 (different) oculars marked corresponding to the left and right tubes B and A; microscope camera lu[1998-1-0590]; case of accessories (1147b-d)
DescriptionPillar and arm stand on a polished brass base plate (which is 16 cm wide x ~20 cm deep x ~ 0.6 cm thick). A rack and pinion focuser carries a vertical sliding tube. This can be a monocular tube or the vertical tube of a Nachet binocular microscope. One half of the exit pupil of the objective is seen by ocular "B" in the vertical tube. The other half is deflected by two prisms to the right eye up an inclined tube through ocular "A". The oculars are different to compensate for the difference in optical tube length.
To adjust for intra-ocular distance, the inclined tube is tilted. A knob on a screw moves two nuts on two different threads. One nut tilts the tube and the other tilts a lever which turns a deflecting prism by half the angle of the tube.
A microscope camera lucida associated with this instrument is CHSI inv. 1998-1-0590. A monocular tube and other accessories are 1147b-d.
To adjust for intra-ocular distance, the inclined tube is tilted. A knob on a screw moves two nuts on two different threads. One nut tilts the tube and the other tilts a lever which turns a deflecting prism by half the angle of the tube.
A microscope camera lucida associated with this instrument is CHSI inv. 1998-1-0590. A monocular tube and other accessories are 1147b-d.
Signedon arm: NACHET
ProvenanceDeposited by the "University Museum" into the Ernst-Lewis Collection.
American
Date: circa 1865
Accessories: 1 Objective; 1 eyepiece; Sub-stage concave mirror
Object number: 2002-1-0048
James W. Queen & Company
Date: circa 1873
Accessories: objective 1/2" engraved W. Wales, NY.; eyepiece 32.3 mm in diameter; diaphragm wheel; articulated concave mirror for illumination; wooden base
Object number: 2002-1-0051
Carl Zeiss Jena
Date: circa 1928
Accessories: oculars(2): a pair of K 15x Mobimi; objectives (3): apochromats 20 n.a. 0.65 and 70 n.a. 1.25, and achromat 8 n.a. 0.20; mechanical stage; condenser with iris diaphgragm; locking screw with washer and screwdriver; standing case, key.
Object number: 1369
A. Nachet
Date: circa 1885
Accessories: Fixed (?) ocular with crosshairs; flip analyzer in tube; standard 11.5 x 0.45 mm objective No. 5 , but in sliding mount; substage polarizer; no case.
Object number: 1202
Alvan Clark and Sons
Date: 1910
Accessories: shipping crate, terrestrial eyepiece, dust cap, mount and tripod (2003-1-0077b)
Object number: 2003-1-0077a
W. Watson & Sons Ltd.
Date: circa 1885
Accessories: oculars (2 pairs): B and D; objectives in marked canisters (4): 1/4, 1/2, 1, 3 inches; condenser with iris diaphragm; rotating wheel diaphragm; iris diaphragm; set of 4 disk diaphragms in brass box; triple nosepiece; live box; prisms for Wenham binocular system (2); stage for simple microscope with rotating wheel diaphragm; vulcanite stage; spare knobs (2); parts box; case
Object number: 1249
Carl Zeiss Jena
Date: circa 1928
Accessories: oculars (3)): 10x Mobimi, 15x & Mobimi, 10x; objectives (3) 90 / 1.25, 40 / 0.65, 10 / 0.30; canisters (3): 90, 40, 8; mechanical stage on vulcanite; Abbe illuminator; triple nosepiece; stops (2): 1, r; screwdriver with locking screw and washer; wrench; standing case; key.
Object number: 1996-1-0339
R. & J. Beck
Date: 1876
Accessories: oculars (2) in microscope; Darker's selenite retarding filters (3); wheel diaphragm; mechanical rotary stage; stage slider. Other accessories are in the case (1122b), including monocular draw tube; oculars (3); objectives in cans (5); empty can; Lieberkühn; polarizing set; slides; camera lucidas (2); etc.; plus a Beck patent substage condenser (1122c); and apertometer (1122d).
Object number: 1122a
Carl Zeiss Jena
Date: circa 1932
Accessories: objectives (4): 3 achr. 8x, 10x, 20x , APO 40; ocular Mobimi K7x; condensor; mechanical stage; stereo set of ocular caps and stop; Abbe condensor; standing case.
Object number: 1370
Carl Zeiss Jena
Date: circa 1932
Accessories: apochromatic objectives (2): 20/ 0.65, 40/ 0.95; canisters (3): Apo 10/ 0.30, Apo 10/ 0.65, Apo 40/ 0.95; oculars (2): pair of K 7x Mobimi; stops (3); screwdriver with heavy locking screw with washer; wrench; standing case, key
Object number: 1389
Carl Zeiss Jena
Date: 1932-1940
Accessories: oculars (2): Leitz 6x; objectives (3): HI 90 / 1.25, 40 / 0.65, AA 10 / 0.30; condenser with iris; triple nosepiece; attached mechanical vulcanite stage
Object number: 1996-1-0345
Carl Friedrich Zeiss
Date: 1885
Accessories: diaphragms (3); semi-diaphragms (2); key; case
diaphragms
Object number: 1126c
