PMC

Optical prism goggles used for prism adaptation therapy (photo credit: Joan Banks for the Kessler Foundation, with permission).

Parallax-DIC microscope and 5D-SPT instrumental set-up. a Schematic illustration of the optical path in parallax-DIC microscope. High-precision objective scanner was not drawn in the scheme. b Model of the insert mounted with the custom-cut wedge prism. c Model of the slot. d Photograph of the wedge prism set installed on the 3D-printed insert housing in the 3D-printed slot. The position of the insert and wedge prism were optimized and fixed by four #4/40 × 1/8 socket set screws and two #4/40 × 1/2 hex socket head cap screws to split the light in half at the back focal plane of the objective. e Photograph of the 5D-SPT instrumental set-up. The optimized wedge prism set was insert to the light path (as indicated in the red dashed box) to enable the parallax-DIC mode and the objective scanner (as shown in the blue dashed box) was use to deploy the automated 5D-SPT

Optical path simulation in the change of prism wedge angle.

Schematic of SD TL-uOCT. CM: fiber-optic collimator; FPC: fiber polarization controller; D: BK7 wedge prism pair; RSOD: grating-lens-based rapid optical delay for dispersion compensation; G: servo mirror; Obj: achromatic lens (f 10mm∕NA 0.25); τ: delay trigger for TL-uOCT; L1, L2: achromatic lens group for field correction.