10 results about "Lenslet array" patented technology

Abstract Apparatus and methods are presented for spectral domain optical imaging, in particular for single shot 3-D spectral domain imaging of the retina of the human eye. In certain embodiments one or more 3-D images across elongated areas of an object are acquired, with scanning perpendicular to the long axis of the elongated areas for imaging extended volumes of 5 the object. In preferred embodiments the captured light is sampled in the Fourier plane, in a dimension substantially perpendicular to the long axis, with a cylindrical lenslet array, while in other embodiments the captured light is sampled in the image plane. Apparatus and methods are also presented for hyperspectral imaging of the retina, with the illuminating beams preferably angled to suppress interference from corneal reflections. Apparatus and methods are 10 also presented for multi-wavelength wavefront sensing, with simultaneous capture of light in two or more paths with different delays. 5 1020 26 20 47 51 19 J un 2 02 6 A b s t r a c t 1 9 J u n 2 0 2 6 5 2 0 2 6 2 0 4 7 5 1 1 0

A light source system is disclosed, the system comprises: a multimode laser unit; a first lenslet array positioned in a path of said laser beam and configured to form an array of focused spots in a selected plane downstream of said first lenslet array; a spatial filter mask carrying an array of pinholes positioned in said selected plane; a second lenslet array having spatial arrangement of lenslets similar to the first lenslet array and positioned such that said spatial filter mask is in a back focal plane of said second lenslet array, thereby collimating laser light from the array of focused spots into a corresponding array of beamlets; and a third lenslet array positioned downstream of said second lenslet array, configured for focusing said array of beamlets to form an output spot array at an exit pupil of said light source system.

The present disclosure is directed generally to a lens that provides a stop signal to a myopic eye, over a substantial portion of the spectacle lens that the viewer is using. The present disclosure is directed to devices, methods and / or systems of imposing a stop signal to eye growth, using a spectacle lens in conjunction with a micro lenslet array. The present disclosure is also directed to devices, methods and / or systems of modifying incoming light through spectacle lenses that utilizes chromatic cues to decelerate the rate of myopia progression. The present disclosure is directed to devices, methods and / or systems of imposing a stop signal to eye growth, using a spectacle lens in conjunction with a refractive optical element and / or diffractive optical element that offer conflicting or contradictory optical signals at a wavelength between 510 nm and 610 nm.

A wavefront sensor is disclosed for measuring a wavefront. The sensor can include a mask configured to receive incident light of the wavefront and including irregularly spaced apertures that respectively transmit sub-beams of the incident light. A lenslet array can be positioned to receive sub-beams of the incident light from the mask so that individual lenslets of the lenslet array collect and focus the sub-beams of incident light. A camera can be included and positioned in a focal plane of the mask and the lenslet array, the camera configured to obtain a digital image of the lenslet array and / or the mask related to the incident light. A system controller can measure the wavefront of the incident light based at least partially on the digital image.

Systems, devices and methods with improved wave front sensing and detection capabilities are described. One example wave front sensor includes a lenslet array that receives an incoming wave front, and a mask that is positioned at a focal plane of the lenslet array to receive and filter a Fourier transformed wave front that is produced by the first lenslet array at the focal plane. Each section of the mask receives light from a corresponding lens of the lenslet array and is configured to produce a reference wave front and to allow a portion of the Fourier transformed wave front to be transmitted or reflected. The wave front sensor also includes a sensor array having a plurality of light sensitive detectors that is positioned to receive the two wave fronts and to detect an intensity value representative of a phase of the incoming wave front.

A radiator panel of a flight vehicle, comprising: an optomechanical assembly including a lenslet array having at least one movable lens disposed in a first plane; a dielectric disposed in a second plane adjacent the first plane; a backplane disposed in a third plane adjacent the second plane and opposite the first place, the backplane including one or more regions comprising one or more of the following materials: reflective, absorptive, emissive and photovoltaic.

A fiber support assembly includes: a first glass tube, wherein the first glass tube is attached to a microlens or lenslet of a microlens or lenslet array; a second glass tube at least partially disposed within the first glass tube; and a gain fiber disposed within the second glass tube, wherein the gain fiber has a first tapered end cap, and wherein the gain fiber with the first tapered end cap is aligned to the microlens or lenslet attached to the first glass tube. The fiber support assembly may further include: a pump fiber disposed within the second glass tube, wherein the pump fiber has a second tapered end cap; and a reflector configured to receive counter-pumping light from the pump fiber and direct the counter-pumping light to the first tapered end cap of the gain fiber.

The present disclosure relates to devices, systems, and / or methods for myopia control. The present disclosure relates generally to a lens that provides a stop signal for myopic eyes over a substantial portion of the eyeglass lens being used by the viewer. The present disclosure relates to devices, methods, and / or systems that use eyeglass lenses in conjunction with a micro-lens array to impose a stop signal for eye development. The present disclosure also relates to devices, methods, and / or systems that modify incoming light through eyeglass lenses that utilize color cues to slow the rate of myopia progression. The present disclosure relates to devices, methods, and / or systems that use eyeglass lenses in conjunction with refractive and / or diffractive optical elements that provide conflicting or opposing optical signals at wavelengths between 510 nm and 610 nm to impose a stop signal for eye development.

An optical component includes a substrate having a first optical surface located opposite a second optical surface with at least one of the first optical surface or the second optical surface including a lenslet array formed therein. The optical component also includes an anti-reflective coating located on the first optical surface, a bandpass filter coating located on the second optical surface, and at least one obscuration located on the substrate. The obscuration is configured to block a transmission of light between the first optical surface and the second optical surface.

An optical component includes a substrate having a first optical surface located opposite a second optical surface with at least one of the first optical surface or the second optical surface including a lenslet array formed therein. The optical component also includes an anti-reflective coating located on the first optical surface, a bandpass filter coating located on the second optical surface, and at least one obscuration located on the substrate. The obscuration is configured to block a transmission of light between the first optical surface and the second optical surface.