Abstract: A surveying instrument including a light projecting optical system which projects the distance measuring light, a light receiving optical system which receives the reflected distance measuring light from an object, a frame unit 5 which horizontally rotates around a horizontal rotation shaft, a scanning mirror which is provided in the frame unit, vertically rotates, a horizontal angle detector which detects a horizontal angle of the frame unit, a vertical angle detector which detects a vertical angle of the scanning mirror and an arithmetic control module which calculates the three-dimensional coordinates of the object, in which the light receiving optical system has a reflecting mirror having a reflecting surface which is an off-axis paraboloidal surface or an off-axis free-form surface, and the reflected distance measuring light is configured to be led to a light receiving module by the reflecting mirror while being condensed.

Abstract: Provided is a surveying instrument including a distance measuring light projecting module configured to project a distance measuring light to an object, a distance measuring light receiving module having a photodetector configured to receive a reflected distance measuring light from the object, and an arithmetic control module configured to calculate a distance to the object based on a light reception result of the reflected distance measuring light with respect to the photodetector, in which the distance measuring light projecting module has a reflecting prism having two prisms joined together, a beam splitter film having a predetermined reflectance and transmittance is formed on a joined surface of the reflecting prism, and the reflecting prism is configured to deflect an optical axis of the distance measuring light via the beam splitter film so as to coincide with an optical axis of the reflected distance measuring light.

Abstract: Provided is a surveying instrument including a distance measuring light projecting module configured to project a distance measuring light to as object, a distance measuring light receiving module having a photodetector configured to receive a reflected distance measuring light 45 from the object, and an arithmetic control module configured to control the distance measuring light projecting module and calculate a distance to the object based on a light reception result of the reflected distance measuring light with respect to the photodetector, in which the distance measuring light projecting module has a pinhole plate which is insertable or removable with respect to an optical axis of the distance measuring light, a pinhole having a predetermined diameter is formed in the pinhole plate, and a light amount and a spread angle of the distance measuring light are changeable based on the insertion or removable of the pinhole plate.

Abstract: A surveying instrument includes a distance measuring unit which irradiates an object with the distance measuring light and measures a distance to the object based on the reflected distance measuring light from the object, wherein the distance measuring unit includes a distance measuring light projecting module configured to project the distance measuring light and a distance measuring light receiving module configured to receive the reflected distance measuring light, the distance measuring light receiving module includes a dichroic prism and a light receiving module, and the dichroic prism is configured in such a manner that the reflected distance measuring light is internally reflected in the dichroic prism at least three times and then received by the light receiving module.

Abstract: A surveying instrument includes a distance measuring module for measuring a distance to the object, in which the distance measuring module includes a light projecting optical system configured to project a distance measuring light and a light receiving optical system configured to receive a reflected distance measuring light, the light receiving optical system includes a prism having a quadrangular shape and a photodetector, the prism includes a first plane, a second plane, a third plate and a fourth plane, configured to enter the reflected distance measuring light in the first plane, sequentially internally reflect on the second plane, the first plane, and the third plane, transmit through the fourth plane, and project, and the reflect distance measuring light projected from the prism configured to be received by the photodetector.

Abstract: A surveying instrument include a distance measuring light projecting module having a light emitting module configured to project a distance measuring light to an object and a one-dimensional diffusion optical member configured to diffuse the distance measuring light in a one-dimensional direction, a distance measuring light receiving module having a photodetector configured to receive a reflected distance measuring light from the object, and an arithmetic control module configured to control the light emitting module and calculate a distance to the object based on a light reception result of the reflected distance measuring light with respect to the photodetector, wherein the light emitting module has at least two light emitters laminated in one direction, and the one-dimensional diffusion optical member is configured to diffuse the distance measuring light in a laminating direction of the light emitters.

Abstract: An ophthalmologic apparatus includes: an optical system configured to acquire data of a subject's eye; a housing unit configured to house the optical system; and an attachment member including a holding member configured to hold a face of the subject movably in a state where a peripheral site of the subject's eye is in contact with the holding member, a passing part through which an optical axis of the optical system passes being formed in the holding member, and the attachment member configured to be detachable between the housing unit and the subject's eye.

Abstract: Provided is a surveying instrument including a distance measuring light projecting module configured to include a light emitting module which projects a laser beam having a predetermined wavelength as a distance measuring light to an object, a distance measuring light receiving module configured to include a photodetector which receives a reflected distance measuring light from the object, and an arithmetic control module configured to control the light emitting module and to calculate a distance to the object based on a light reception result of the reflected distance measuring light with respect to the photodetector, in which the light emitting module is configured to include at least two light emitters, at least one of the light emitters is configured to project the distance measuring light, and each light emitter is configured in such a manner that the laser beam is substantially coaxially projected.

Abstract: A surveying instrument comprises a light projecting optical system for projecting a distance measuring light to a predetermined measuring point, a light receiving optical system for receiving a reflected distance measuring light and an infrared light from the measuring point, and an arithmetic control module for controlling a distance measurement and a temperature measurement based on light receiving results of the reflected distance measuring light and the infrared light, and the arithmetic control module measures a distance to the measuring point based on light receiving results of the reflected distance measuring light received by a photodetector of the light receiving optical system, and measures a temperature of the measuring point based on light receiving results of the infrared light received by a temperature sensor of the light receiving optical system.

Abstract: A method of correcting a measurement value of a laser scanner includes: in a laser scanner including a light emitting unit, a light receiving unit, a distance measuring unit, an optical axis deflecting unit having at least a pair of prisms deflecting a distance measuring light and a reflected distance measuring light, and an emitting direction detecting unit detecting a deflection angle and an emitting direction of the distance measuring light from the optical axis deflecting unit, (a) measuring a distance to a measurement point, (b) detecting rotation angles of the prisms, and (c) obtaining, based on rotation angles of the prisms, a true distance measurement value corrected for a length of an optical path length difference in light emission and/or light reception caused according to the rotation angles of the prisms by subtracting the optical path length difference from a distance measurement value of the distance measuring unit.

Abstract: Provided is a surveying instrument including a distance measuring light projector configured to project a distance measuring light to an object, a distance measuring light receiver having a photodetector configured to receive a reflected distance measuring light from the object, a tracking light projector configured to project a tracking light to the object, a tracking light receiver having a tracking photodetector configured to receive a reflected tracking light from the object, and an image pickup module configured to receive a background light, in which the distance measuring light projector and the tracking light projector include a first deflecting optical member, and the distance measuring light projector, the tracking light projector, and the image pickup module include a second deflecting optical member.

Abstract: Provided is a surveying instrument including a distance measuring light projector configured to project a distance measuring light to an object, a distance measuring light receiver having a photodetector configured to receive a reflected distance measuring light from the object, a tracking light projector configured to project a tracking light to the object, and a tracking light receiver having a tracking photodetector configured to receive a reflected tracking light from the object, in which the distance measuring light receiver and the tracking light receiver have a receiving prism, and the receiving prism is configured to internally reflect the reflected distance measuring light and the reflected tracking light more than once, then separate the reflected distance measuring light from the reflected tracking light, cause the reflected distance measuring light and the reflected tracking light to be received by the photodetector and the tracking photodetector.

Abstract: A surveying instrument includes a distance measuring unit which measures a distance to an object, wherein the distance measuring unit comprises a light emitter configured to change an emission repetition frequency and the peak power of pulses of a distance measuring light to at least two, a light projecting optical system configured to project the distance measuring light, and a light receiving optical system configured to cause a photodetector to receive the reflected distance measuring light, wherein the light receiving optical system has a light amount adjusting member which is insertable and removable with respect to an optical axis of the reflected distance measuring light, and the light amount adjusting member configured to adjust a light receiving amount of the reflected distance measuring light in correspondence with the emission repetition frequency and the peak power of the pulses.

Abstract: A surveying instrument includes a distance measuring unit which irradiates an object with the distance measuring light and measures a distance to the object based on the reflected distance measuring light from the object, wherein the distance measuring unit includes a distance measuring light projecting module configured to project the distance measuring light and a distance measuring light receiving module configured to receive the reflected distance measuring light, the distance measuring light receiving module includes a dichroic prism and a light receiving module, and the dichroic prism is configured in such a manner that the reflected distance measuring light is internally reflected in the dichroic prism at least three times and then received by the light receiving module.

Abstract: A surveying instrument including a light projecting optical system which projects the distance measuring light, a light receiving optical system which receives the reflected distance measuring light from an object, a frame unit 5 which horizontally rotates around a horizontal rotation shaft, a scanning mirror which is provided in the frame unit, vertically rotates, a horizontal angle detector which detects a horizontal angle of the frame unit, a vertical angle detector which detects a vertical angle of the scanning mirror and an arithmetic control module which calculates the three-dimensional coordinates of the object, in which the light receiving optical system has a reflecting mirror having a reflecting surface which is an off-axis paraboloidal surface or an off-axis free-form surface, and the reflected distance measuring light is configured to be led to a light receiving module by the reflecting mirror while being condensed.

Abstract: A surveying instrument includes a distance measuring module for measuring a distance to the object, in which the distance measuring module includes a light projecting optical system configured to project a distance measuring light and a light receiving optical system configured to receive a reflected distance measuring light, the light receiving optical system includes a prism having a quadrangular shape and a photodetector, the prism includes a first plane, a second plane, a third plate and a fourth plane, configured to enter the reflected distance measuring light in the first plane, sequentially internally reflect on the second plane, the first plane, and the third plane, transmit through the fourth plane, and project, and the reflect distance measuring light projected from the prism configured to be received by the photodetector.

Abstract: An optical system of a laser scanner comprising: a light projecting system for projecting a distance measuring light, a scanning mirror for rotatably irradiating the distance measuring light from the light projecting system around a single axis and for making a reflected distance measuring light from an object to be measured enter a light receiving system, a transmission window for accommodating the scanning mirror and through which the distance measuring light and the reflected distance measuring light are transmitted, and a correction optical component for offsetting an optical action of the transmission window, which is provided at least in a middle of an irradiating optical path of the distance measuring light.

Abstract: An ophthalmologic apparatus includes: an optical system configured to acquire data of a subject's eye; a housing unit configured to house the optical system; and an attachment member including a holding member configured to hold a face of the subject movably in a state where a peripheral site of the subject's eye is in contact with the holding member, a passing part through which an optical axis of the optical system passes being formed in the holding member, and the attachment member configured to be detachable between the housing unit and the subject's eye.

Abstract: The invention provides an electronic distance measuring instrument, which comprises a light projecting optical system for emitting a distance measuring light onto a distance measuring optical axis and a light receiving optical system for leading a reflected distance measuring light to a photodetector, wherein the light projecting optical system has a projection optical axis deflecting unit for deflecting a projection optical axis so that the projection optical axis coincides with a light receiving optical axis, the light receiving optical system has a first light receiving optical axis deflecting unit and a second light receiving optical axis deflecting unit which are arranged on a same plane, the photodetector is arranged on a plane different from the first light receiving optical axis deflecting unit and the second light receiving optical axis deflecting unit.

Abstract: The invention provides a spectroscopic instrument, which comprises a projecting optical system for projecting a projecting light emitted from a light source, a photodetecting optical system for receiving a reflection light from an object to be measured and for guiding to a photodetection member, and a spectroscope for detecting a condition of the object to be measured based on the reflection light as received by the photodetection member, wherein the projecting optical system and the photodetecting optical system have a projecting system chromatic aberration decreasing component and a photodetecting system chromatic aberration decreasing component which eliminate chromatic aberrations, respectively.