Description
Rare, rare, rare Nikon LKe DIC reflected light/ transmitted light DIC phase contrast microscope and accessories, some of which are new old stock. The microscope sports the "U" trinocular #77759 viewing body that allows 45º inclination; 3-way sliding prism: 1. 30% visual, 70% photo, 2. 100% visual, 3.100% photo. It appears that the power transformer #76167 is new and in the original box. In the wooden box with out a liner is a Type "R" Differential Interference reflected light attachment #76985. Nikon describes it in its' literature as: "The Differential Interference "R" attachment is designed for reflected light use with opaque specimens. This unit gives topographical impression over the entire specimen; where the optical thickness varies, the interference image looks like a relief map." I took the picture of a printed circuit with the type "R" through the eyepiece using a consumer grade camera. In the same wooden box is an Epi Illuminator model #76994 with a rotatable polarizer and analyzer #76995. The literature describes this attachment thusly: "The Epi-Illuminator is an intermediate attachment that is interposed between the eyepiece tube and the objective to furnish 'on axis' illumination. Its beam of light is sent directly through the objective onto the specimen surface. Translucent specimens, such as some minerals, can be examined by combined reflected and transmitted light utilizing the different color filters supplied for contrast. The Epi's optical system fulfills all of the requirements for Koehler illumination; there is a 1.5X magnification factor. It is normally supplied with a tungsten light source." The wooden box with the red liner appears to have new components, it contains an Aplanat 1.4 n.a. condenser with removable substage diaphragm, phase ring 10XD, 40XD, and 100XD. Also contained in this box is a focusing phase telescope, small blue, yellow and green filter which actually belongs in the Epi-Illuminator box. It also contains a large green and red filter mounted in a paddle. Finally in this box, are some unusual phase rings, 10 XF, 20 XF, 40 XF, 100 XF, the ring is clear blue rather than transparent. An Interference Phase Attachment, #77000 is included and is described by Nikon as: "A unique form of Nikon microscopy that utilizes polarization to induce interference colors into phase contrast, enabling the user's eye to distinguish ultrafine details. Must be used with standard achromat objectives." The two polarizers move nicely and the system seems to work, however there is some damage to the body of the unit as can be seen in the photographs. I think the prism is misaligned in the housing, because a dark line is seen in about 30% of the field which I could not adjust out. The Interference phase effect is still good in the rest of the field however. The nosepiece is a removable 5-place unit with 4X achromat, 10X achromat, 20X strain free pol, 40X strain free pol, 100X oil immersion strain free pol objectives. I have replaced the Teflon fine focus spur-gear with a brand new one that I had been saving for just such a microscope. As you can see in the picture, two lamphouses are included with functional bulbs. I have more pictures if you are interested. This entire unit was removed from a crime laboratory, thanks for looking at this unusually uncommon microscope.
