Abstract: A scanning device applied to an optical coherence tomography system integrates a scanning lens group required by the coherence tomography system into a fundus imaging system, so that the coherence tomography system and the fundus imaging system can share the scanning lens group for focusing. The above-mentioned scanning device can shorten a response time of focusing and reduce the volume of the system. An optical coherence tomography system including the above-mentioned scanning device is also disclosed.

Abstract: An image sensor package includes a substrate, an image sensor, a light-emitting element, and a package body. The substrate includes a plurality of first conductive contacts and a plurality of second conductive contacts. The image sensor is disposed on the substrate and electrically connected to the corresponding first conductive contacts. The light-emitting element is close to the image sensor, disposed on the substrate and electrically connected to the corresponding first conductive contacts. The package body is filled between the image sensor and the light emitting element. The above-mentioned image sensor package can achieve miniaturization, provide uniform illumination, and increase light utilization efficiency. An endoscope including the above-mentioned image sensor package is also disclosed.

Abstract: A fundus camera displays guide information on a display panel which can be viewed by a testee to guide the testee to adjust a relative position of the fundus camera and a tested eyeball of the testee to a determined position. Therefore, the testee can use the above-mentioned fundus camera to self-shoot fundus images with better image quality. A method for self-shooting fundus is also disclosed.

Abstract: A fundus camera includes an eyeball-offset detection device and an annular illumination device. The eyeball-offset detection device is configured to detect an offset vector of a lens of the fundus camera relative to an inspected eyeball. The annular illumination device includes a plurality of illumination elements that are arranged in a ring shape around an optical axis of an imaging system of the fundus camera. According to the offset vector of the lens relative to the inspected eyeball, the fundus camera selectively activates one or more illumination elements at corresponding positions to keep an illumination optical path away from a center area of the pupil of the inspected eyeball to reduce effects of corneal reflection and improve illumination quality. Therefore, the abovementioned fundus camera has a large operable range.

Abstract: A slit illumination device includes a first light-emitting element, a first diaphragm and a projection lens group. The first light-emitting element generates a primary illumination light. The first diaphragm has at least one opening and is disposed on a light exit side of the first light-emitting element, wherein the opening is an elongate shaped opening. The projection lens group is disposed on a light exit side of the first diaphragm, converging the primary illumination light and projecting it to a target object. A distance from the first diaphragm to the projection lens group is 1-2 times a focal length of the projection lens group on a light entrance side. The foregoing slit illumination device has advantages of simple structure, small size, and longer depth of field. A microscope system including the foregoing slit illumination device is also disclosed.

Abstract: A lens module comprises a first lens group, a second lens group and a third lens group, which are arranged from an eye fundus side to an image side in sequence. The first lens group has a positive effective focal length (EFL) and includes a first lens having two convex surfaces respectively facing the eye fundus side and the image side. The second lens group has a positive or negative EFL and includes a plurality of second lenses, wherein the second lens closest to the eye fundus side has a concave surface facing the eye fundus side. The third lens group has a positive EFL and includes a plurality of third lenses, wherein at least one third lens is a cemented lens. The abovementioned lens module decreases the volume of a lens module and reduces the ghosting effect. An eye fundus camera using the abovementioned lens module is also disclosed.

Abstract: A digital diagnostic system with interchangeable lenses includes a host and at least one optical lens module, wherein the host without any optical lens having curved surface includes a focus adjustment module which drives an image capture module to linearly move. Therefore, the optical system of the optical lens module can be designed independently, and no need to include focus adjustment mechanism, so that the optical design of the optical lens module can be greatly simplified, and the system allows a greater mechanism tolerance, thereby reducing manufacturing difficulty and manufacturing cost.

Abstract: A contact-type ophthalmoscope includes a contact lens, an annular illumination module, an imaging lens group and an image capture module. The contact lens having a concave surface is configured for contacting an eyeball. The annular illumination module arranged close to the contact lens is configured for providing a direct illumination light source to illuminate a fundus of the eyeball. The imaging lens group is disposed in the central hollow portion of the annular illumination module and configured for converging the reflected light from the fundus of the eyeball. The image capture module is configured for capturing the reflected light converged by the imaging lens group to form an image. The above-mentioned contact-type ophthalmoscope has advantages of better illumination efficiency, compactness and less scattered light reflected from the imaging lens.

Abstract: An ophthalmoscope comprises an illumination element providing an illumination light beam to illuminate the fundus of an eyeball; an imaging lens group converging the reflected light beam from the fundus; and an image capture module. The image capture module includes an image sensing element, a fixation light element and an optical element. The image sensing element captures the reflected light beam converged by the imaging lens group to form an image. The fixation light element provides a fixation light beam passing through the imaging lens group and reaching the fundus. The optical element is arranged among the imaging lens group, image sensing element and fixation light element to make the image sensing element and the fixation light element on different equivalent focal planes of the imaging lens group. According to the above-mentioned structure, a relay lens and a focusing module used by the conventional fixation light element is omitted.

Abstract: A medical imaging system includes a first lens set, a light source and an image forming module. The medical imaging system of the present invention configures the light source according to the object-image relationship of lens, so that illuminating light may sufficiently enter a cavity, significantly increasing the luminous efficiency. Also, the image forming and illuminating components are integrated into one system, thereby achieving advantages of reduced volume and cost saving.

Abstract: A lens module comprises a first lens group, a second lens group and a third lens group, which are arranged from an eye fundus side to an image side in sequence. The first lens group has a positive effective focal length (EFL) and includes a first lens having two convex surfaces respectively facing the eye fundus side and the image side. The second lens group has a positive or negative EFL and includes a plurality of second lenses, wherein the second lens closest to the eye fundus side has a concave surface facing the eye fundus side. The third lens group has a positive EFL and includes a plurality of third lenses, wherein at least one third lens is a cemented lens. The abovementioned lens module decreases the volume of a lens module and reduces the ghosting effect. An eye fundus camera using the abovementioned lens module is also disclosed.