5 results about "Fabry–Pérot interferometer" patented technology

A system includes a top mirror, a bottom mirror, a top spacer mesa, a bottom spacer mesa, and an adhesive. The top mirror is added to a top substrate. The bottom mirror is added to a bottom substrate. The top spacer mesa is added to the top substrate. The bottom spacer mesa is added to the bottom substrate. The adhesive is affixed between a) the top substrate or a top support element and b) the bottom substrate or a bottom support element or a piezo actuator.

Apparatus and methods are described including illumination equipment (300) configured to direct light into an eye of a subject. An optical device (100) is placed inside the subjects eye, the optical device including a Fabry Perot interferometer (106) comprising at least two mirrors (162, 164), the Fabry Perot interferometer (106) being configured such that a distance between the mirrors (162, 164) varies as an intraocular parameter of the subjects eye varies. A retroreflector (140) is configured such that light that is transmitted through the Fabry Perot interferometer (106) is automatically reflected out of the subjects eye. Readout equipment (400) is configured to detect the light that is reflected out of the subjects eye. Other applications are also described.

A method for producing a Fabry-Perot interferometer (FPI1) comprises: - forming a first module (MOD1), which comprises a first actuating electrode (E1), - forming a second module (MOD2), which comprises a movable mirror (M2) and a second actuating electrode (E2), and - bonding the first module (MOD1) to the second module (MOD2), wherein the first actuating electrode (E1) and the second actuating electrode (E2) are arranged to change the distance (dM) between the mirrors (M1, M2) of the interferometer (FPI1),10 wherein dimensions of the modules (MOD1, MOD2) are selected such that a distance (dE) between the first electrode (E1) and the second electrode (E2) is greater than or equal to 1.5 times a distance (dM) between the mirrors (M1, M2).

An apparatus (500) for spectral measurements comprises: - a Fabry-Perot interferometer (FP1) having an adjustable mirror gap (dGAP), and - a control unit (CNT1) for controlling the mirror gap (dGAP), wherein the apparatus (500) is arranged to: - set the mirror gap (dGAP) to a first mirror gap value (dGAP,1) to provide a first spectral transmittance peak (P1,A) at a first wavelength (λA), wherein the first spectral transmittance peak (P1,A) has an effective spectral width (Δλ1,A,EFF), - change the mirror gap (dGAP) to a second different mirror gap value (dGAP,2) to provide a second spectral transmittance peak (P2,A) at the first wavelength (λA), and a third spectral transmittance peak (P1,C) at a second wavelength (λC), and - control the position of a mirror (M2) of the Fabry-Perot interferometer (FP1) near the second different mirror gap value (dGAP,2) such that the effective spectral width (Δλ2,A,EFF) of the second spectral transmittance peak (P2,A) is substantially equal to the effective spectral width (Δλ1,A,EFF) of the first spectral transmittance peak (P1,A).

A system includes a top mirror, a bottom mirror, a top spacer mesa, a bottom spacer mesa, and an adhesive. The top mirror is added to a top substrate. The bottom mirror is added to a bottom substrate. The top spacer mesa is added to the top substrate. The bottom spacer mesa is added to the bottom substrate. The adhesive is affixed between a) the top substrate or a top support element and b) the bottom substrate or a bottom support element or a piezo actuator.