A dynamic imaging system of an endoscope that adjusts path length differences or focal points to expand a usable depth of field. The imaging system utilizes a variable lens to adjust the focal plane of the beam or an actuated sensor to adjust the detected focal plane. The imaging system is thus capable of capturing and adjusting the focal plane of separate images captured on separate sensors. The separate light beams may be differently polarized by a variable wave plate or a polarized beam splitter to allow separate manipulation of the beams for addition of more frames. These differently focused frames are then combined using image fusion techniques.

A stereoscopic-vision endoscope includes an objective optical system, a relay optical system, a first lens unit, a light-beam splitting element, a second lens unit, and an image sensor. An intermediate image, a first image, and a second image are formed in a common optical path, a first optical path, and a second optical path respectively. The light-beam splitting element has a surface of incidence and a surface of emergence. A first light ray which passes through the intermediate image and reaches first image and a second light ray which passes through the intermediate image and reaches the second image are refracted to be away from an optical axis of the common optical path on the surface of incidence, as well as are refracted to be closer to the optical axis of the common optical path on the surface of emergence.

Embodiments of the present disclosure provide an endoscope apparatus and a method for controlling the endoscope apparatus. The endoscope apparatus may comprise an image collector, configured to collect an image for an eyeball of a user; a controller, configured to calculate a parameter for adjusting an endoscope lens of an endoscope based on the collected image; and the endoscope, configured to adjust the endoscope lens according to the parameter.

A dynamic imaging system of an endoscope that adjusts path length differences or focal points to expand a usable depth of field. The imaging system utilizes a variable lens to adjust the focal plane of the beam or an actuated sensor to adjust the detected focal plane. The imaging system is thus capable of capturing and adjusting the focal plane of separate images captured on separate sensors. The separate light beams may be differently polarized by a variable wave plate or a polarized beam splitter to allow separate manipulation of the beams for addition of more frames. These differently focused frames are then combined using image fusion techniques.

A skin measuring microscope includes a housing, an electronic imager disposed along an imaging axis, and an illumination system. The illumination system includes a plurality of LEDs disposed in a ring-like configuration adjacent a distal end of the housing.

Improved fluoresced imaging (FI) endoscope devices and systems are provided to enhance use of endoscopes with FI and visible light capabilities. An endoscope device is provided for endoscopy imaging in a white light and a fluoresced light mode. A chromatic adjustment assembly, typically implemented with prisms, compensates for a chromatic focal difference between the white light image and the fluoresced light image caused by the dispersive properties of the optical materials or optical design employed in the construction of the optical channel. The assembly is placed optically between the most proximal rod lens of the endoscope and the focusing optics, typically at an internal telecentric image space, to improve the chromatic correction. The prism assembly directs incoming light with different spectral content along separate paths which compensate for chromatic aberration.

An endoscope includes: a first lens located at a distal-most position, a part of the first lens being exposed outside; a movable lens barrel configured to be able to move, and configured to hold a movable lens disposed on a proximal end side with respect to the first lens; an actuator unit including a coil that drives the movable lens barrel and generates heat by receiving a supply of electric power; and a control section that outputs first electric power to the coil when holding the movable lens barrel at a predetermined position, and outputs second electric power larger than the first electric power to the coil when conducting heat generated from the coil to the first lens at the predetermined position.

A system, device, and accompanying software for the remote, three-dimensional, and high-throughput imaging and analysis of human lesions, across a range of wavelengths, lens radii and imaging sensors. This system, device, and software generates and analyses of tumor images at infrared wavelengths through the use of miniaturized, liquid lenses. It has a number of clinical, diagnostic, research, and other imaging applications, including the remote, three-dimensional, and high-throughput imaging and analysis of human cancer tumors.

A hand-held medical device includes a housing, an electronic imager, and an optical system aligned with the electronic imager along an imaging axis of the device. An illumination system includes at least one light source for directing light towards a target of interest, as well as a display connected to the electronic imager and attached to the housing. A processor, disposed within the housing, is connected to the electronic imager, the illumination assembly and the display, and includes processing logic and data storage for storing a plurality of images.

A medical otoscope, comprises an otoscope body and an observation apparatus connected to one end of the otoscope body, the other end of the otoscope body having a tapered portion capable of inserting into an ear, the observation apparatus comprising at least one optical lens group arranged along a same optical axis, the optical lens group comprising at least one optical lens capable of moving along the optical axis, central axis of the observation apparatus being coaxial with or deviating from central axis of the otoscope body. The focal length of the medical otoscope can be adjusted by means of arranging two groups of optical lenses movable relative to one another, and the medical otoscope has a simple structure and is convenient for operation.