A medical camera includes a camera head having a first a first color separation prism, a second color separation prism, a third color separation prism, and a fourth color separation prism. The four color separation prisms respectively separate light incident from an affected area into a blue, red and green color components, and an infrared (IR) component. A light emission surface of the first color separation prism is disposed opposite to a light emission surface of the second color separation prism. A light emission surface of the third color separation prism is disposed across an incident ray which is incident vertically to an object side incident surface of the first color separation prism.

An endoscope includes in order from an object side, an objective optical system, an optical-path splitter, an image sensor, and an image processor. A /4 wavelength plate is disposed between the objective optical system and the optical-path splitter. The optical-path splitter includes in order from the object side, a first prism and a second prism, and has a beam splitting surface at which the first prism and the second prism are brought into close contact. The optical-path splitter splits light at the beam splitting surface, into a first optical path through which P-polarized light is transmitted and a second optical path through which S-polarized light is reflected. The first prism and the second prism, by sliding the beam splitting surface, adjust an optical path length of the first optical path and an optical path length of the second optical path, and are disposed at positions of cancelling an amount of shift in a focusing position of extraordinary light and a focusing position of ordinary light, and satisfy specific conditional expressions.

An endoscope includes in order from an object side, an objective optical system, an optical-path splitter, an image sensor, and an image processor. A /4 wavelength plate is disposed between the objective optical system and the optical-path splitter. The optical-path splitter includes in order from the object side, a first prism and a second prism, and has a beam splitting surface at which the first prism and the second prism are brought into close contact. The optical-path splitter splits light at the beam splitting surface, into a first optical path through which P-polarized light is transmitted and a second optical path through which S-polarized light is reflected. The first prism and the second prism, by sliding the beam splitting surface, adjust an optical path length of the first optical path and an optical path length of the second optical path, and are disposed at positions of cancelling an amount of shift in a focusing position of extraordinary light and a focusing position of ordinary light, and satisfy specific conditional expressions.

The invention relates to a binocular observation device, in particular a field glass, with two visual optical paths and with a laser distance meter with a laser transmitter and a laser receiver and with an opto-electronic display element. A part of an optical path of the laser transmitter is integrated in a first visual optical path and a part of an optical path of the laser receiver is also integrated in the first visual optical path.

The invention relates to a binocular observation device, in particular a field glass, with two visual optical paths and with a laser distance meter with a laser transmitter and a laser receiver and with an opto-electronic display element. A part of an optical path of the laser transmitter is integrated in a first visual optical path and a part of an optical path of the laser receiver is also integrated in the first visual optical path.

A prism module includes a first prism including a first surface, a second surface and a third surface, a roof prism including a roof surface and a fourth surface, a second prism including a fifth surface, a sixth surface and a seventh surface, and a third prism including a light access surface, a first reflecting surface and a second reflecting surface. A light source is disposed above the second prism and adjacent to the first and the roof prisms. A light beam emitted by the light source enters and is reflected by the third prism, enters the second prism through the seventh surface, passes through the sixth surface, enters the first prism through the third surface, and is reflected by the second surface to leave the prism module. The light beam leaving the prism module is parallel to a baseline passing through the first, the second and the fourth surfaces.

A prism module includes a first prism including a first surface, a second surface and a third surface, a roof prism including a roof surface and a fourth surface, a second prism including a fifth surface, a sixth surface and a seventh surface, and a third prism including a light access surface, a first reflecting surface and a second reflecting surface. A light source is disposed above the second prism and adjacent to the first and the roof prisms. A light beam emitted by the light source enters and is reflected by the third prism, enters the second prism through the seventh surface, passes through the sixth surface, enters the first prism through the third surface, and is reflected by the second surface to leave the prism module. The light beam leaving the prism module is parallel to a baseline passing through the first, the second and the fourth surfaces.

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system.

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system.

Medical imaging camera head devices and methods are provided using light captured by an endoscope system or other medical scope or borescope. Afocal light from the scope is manipulated and split. The resulting first and second beams are passed through focusing optics to a single sensor. To take better advantage of the available number image sensor pixels, the beam may pass through lens elements (or prisms) to generate an anamorphic aspect ratio prior to being split, increasing the resolution of the image in one dimension. The afocal anamorphic beam is then split, and both images are focused on the image sensor. The anamorphism is compensated for in image processing, permitting higher resolution in one dimension along the image sensor. The manipulation of the beams prior to being split (and in some cases after or while being split) can take several forms, each offering distinct advantages over existing systems.