DIC

Wikipedia:  DIC microscopy
Zeiss-Nomarski differential interference equipment for transmitted-light microscope
  by R.D.Allen, G.B.David, G.Nomarski

Olympus diascopic DIC Configuration and Alignment

Differential Interference Contrast (DIC) Microscopy and other methods of producing contrast

Nikon's microscopyu.com DIC articles

DIC Principles and Applications
DIC Component Alignment (Java)
de Senarmont DIC Microscope Configuration
de Senarmont Bias Retardation
fixes 1/4 wavelength retardation plate
while polarizer can rotate +/- 45 degrees.

epi DIC

Scarodactyl: Reflected Light - Optiphot Series

Scarodactyl's epi DIC woes
Scarodactyl's Diatoms in epi DIC

PeteM: DIC options compared

hkv: DIC setup

abednego1995: 3 generations of Optiphot DIC

rogeliomoreno's diascopic DIC considerations

1. The objective's prism and the condenser's prism must match.
   I did try to use Nikon objective's prisms (made for the N2 condenser's prism) with M condenser's prism
   and they did not work.
2. Condenser prims are made to be mounted at precise distance from the condenser's lens, close to focal point.
3. Prisms have to be oriented 45 degrees from polarizer direction
   (Polarizer is typically oriented left-right and analyzer back-front)
   First, find objective prism's orientation:
   remove both prisms from the light train,
   and cross the polarizer and analyzer
   (light through eyepieces is darkest),
   now put the objective's prism in the light train,
   remove an eyepieces and check for the black line:
   • it should be oriented at 45 degrees,
   • note: not all prisms show the black stripe when put between crossed polarizers
     (the Nikon N1, N2 family of DIC prisms do not show that stripe, but mostly do).
     Second, orient the condenser prism's black stripe in the same direction
     (/ or \\) as the objective's stripe,
     by removing the objective prism from the light train
     inserting the condenser prism, and
     turning that prism until its black stripe aligns with the objective's.

Nikon epi DIC prisms repurposed - viktor j nilsson

JH's epi DIC with mirror

First surface mirror

Flow visualization using a Sanderson prism

S. R. Sanderson: Simple, adjustable beam splitting element for differential interferometers based on photoelastic birefringence of a prismatic bar

First steps in exploring (Zeiss) epi DIC

Epi-DIC for gemstone surface examination

NicoVB: table salt and DIC

"let salt soak in water and let the water evaporate.
I just put my slide on the central heating to speed up.
But i was not happy with the forms, so i did it a second time.
Then mixed with alcohol."

DIC interference fringe altered by tilting prisms

DIC prism interference band location
by measuring objective's back focal plane using a laser pointer

project distance to 0 diameter e.g. using gnuplot fit
viktor j nilsson:

Nikon 10x,40x and 100x epi objectives uses the same prism (labelled 10.40.100x),

but 20x and 5x objectives have separate prisms.

DIC with non-DIC CF plan Nikon objectives?

DIC prisms work at objectives' back focal plane
(which is often inside objectives, requiring Nomarski prisms)

Wollaston vs Nomarski prisms

                           
                Wollaston                                         Nomarski
The front interference plane of an objective-side Nomarski prism
must coincide with the objective's back focal plane.
The upper wedge must be thinner than the lower wedge in a Nomarski prism,
but most drawings just have a straight line connecting the corners.
Small but important difference.

Gerd: bright field epi DIC DVD/CD

Esslinger + Gross: DIC vs PlasDIC; partially coherent illumination

PlasDIC is a special design of Köhler-DIC configuration in which a slit in the direction of shear
is placed symmetrically with respect to the optical axis in the FFP of the condenser.
Köhler-DIC uses an condenser aperture of the same size as objective aperture.

Nikon upper DIC prism for 160 TL is integrated with objective nosepiece

Nikon epi DIC prisms in transmitted DIC Phase Contrast condenser

NIH: DIC shear modulation by LCD

DIC by Savart plates used on Nikon S