Surveying instrument
A surveying instrument capable of irradiating a spotlight as visible light for centering toward a position below a vertical axis of a surveying instrument main body is configured such that that an irradiation shape of the spotlight is a toric shape. When visible light for centering which passes through a center point of the surveying instrument and is projected on a position right below the surveying instrument is projected in a toric shape having a hole opened at a center like a donut shape, both of an inner circle and an outer circle can be recognized, so that many guides are provided, and it is easier for a worker to align the toric shape with the target point than a point shape, so that the burden of a centering work on the worker is reduced.
1. A surveying instrument capable of irradiating a spotlight as visible light for centering toward a position below a vertical axis of a surveying instrument main body, wherein
an irradiation shape of the spotlight is a toric shape.
2. The surveying instrument according to claim 1 , comprising:
a distance-measuring unit for instrument height calculation including a light transmitting unit and a light receiving unit, wherein
the spotlight is light that the light transmitting unit transmits to a position below the vertical axis of the surveying instrument main body to make a distance measurement.
3. The surveying instrument according to claim 1 , wherein
an outer diameter of the spotlight at a distance of 1 m from a bottom surface of the surveying instrument main body is 5 mm to 30 mm.
4. The surveying instrument according to claim 2 , wherein
an outer diameter of the spotlight at a distance of 1 m from a bottom surface of the surveying instrument main body is 5 mm to 30 mm.
5. The surveying instrument according to claim 1 , comprising a spotlight irradiating unit capable of irradiating a position below the vertical axis of the surveying instrument main body with the spotlight, wherein
the spotlight irradiating unit comprises:
a light emitting unit configured to emit visible light;
a collimating lens disposed in front of the light emitting unit and has an optical axis aligned with the vertical axis of the surveying instrument main body; and
a toric light shaping unit disposed on the optical axis of the collimating lens and configured to convert an irradiation shape of incident light into a toric shape and emit the light, and
the irradiation shape of the spotlight is a donut shape having a hole opened at a center.
6. The surveying instrument according to claim 2 , comprising a spotlight irradiating unit capable of irradiating a position below the vertical axis of the surveying instrument main body with the spotlight, wherein
the spotlight irradiating unit comprises:
a light emitting unit configured to emit visible light;
a collimating lens disposed in front of the light emitting unit and has an optical axis aligned with the vertical axis of the surveying instrument main body; and
a toric light shaping unit disposed on the optical axis of the collimating lens and configured to convert an irradiation shape of incident light into a toric shape and emit the light, and
the irradiation shape of the spotlight is a donut shape having a hole opened at a center.
7. The surveying instrument according to claim 3 , comprising a spotlight irradiating unit capable of irradiating a position below the vertical axis of the surveying instrument main body with the spotlight, wherein
the spotlight irradiating unit comprises:
a light emitting unit configured to emit visible light;
a collimating lens disposed in front of the light emitting unit and has an optical axis aligned with the vertical axis of the surveying instrument main body; and
a toric light shaping unit disposed on the optical axis of the collimating lens and configured to convert an irradiation shape of incident light into a toric shape and emit the light, and
the irradiation shape of the spotlight is a donut shape having a hole opened at a center.
8. The surveying instrument according to claim 4 , comprising a spotlight irradiating unit capable of irradiating a position below the vertical axis of the surveying instrument main body with the spotlight, wherein
the spotlight irradiating unit comprises:
a light emitting unit configured to emit visible light;
a collimating lens disposed in front of the light emitting unit and has an optical axis aligned with the vertical axis of the surveying instrument main body; and
a toric light shaping unit disposed on the optical axis of the collimating lens and configured to convert an irradiation shape of incident light into a toric shape and emit the light, and
the irradiation shape of the spotlight is a donut shape having a hole opened at a center.