发明名称 |
VIEWER WITH ENHANCED DEPTH PERCEPTION |
摘要 |
A viewer for viewing an object under magnification, the viewer comprising: an objective lens for producing an image of an object located at an object plane and having a radial extent defined by an aperture stop; a partially-transmissive reflector for allowing transmission of light therethrough from the objective lens to a mirror arrangement and providing for reflection of light which is returned thereto from the mirror arrangement; a mirror arrangement which receives a light component from the partially-transmissive reflector, and is located such that a focussed image of the object is produced at the mirror arrangement and light received by the mirror arrangement is reflected back to the partially-transmissive reflector and relayed to produce an image of the object; a viewing lens arrangement for producing an optical image of the object which is viewable by an observer at an exit pupil at a viewing plane; wherein the objective lens has a beam path angle (α) as defined by a distance from the object plane to the objective lens and a radial extent of the aperture stop; wherein the viewer has a viewing angle (β) as defined by a distance along an optical axis from the mirror arrangement to the viewing plane and a radial extent of the exit pupil at the viewing plane; wherein the viewer is configured such that a displacement ratio of the beam path angle (α) to the viewing angle (β) is at least 3:1, whereby the observer is provided with a greater change in depth perception of the object being observed relative to an extent of displacement of a head of the observer. |
申请公布号 |
US2016202492(A1) |
申请公布日期 |
2016.07.14 |
申请号 |
US201414912290 |
申请日期 |
2014.08.15 |
申请人 |
VISION ENGINEERING LIMITED |
发明人 |
Mercer Graham Peter Francis |
分类号 |
G02B27/22;G02B27/14;G02B27/02 |
主分类号 |
G02B27/22 |
代理机构 |
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代理人 |
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主权项 |
1. A viewer for viewing an object under magnification, the viewer comprising:
an objective lens for producing an image of an object located at an object plane and having a radial extent defined by an aperture stop; a partially-transmissive reflector for allowing transmission of light therethrough from the objective lens to a mirror arrangement and providing for reflection of light which is returned thereto from the mirror arrangement; a mirror arrangement which receives a light component from the partially-transmissive reflector, and is located such that a focussed image of the object is produced at the mirror arrangement and light received by the mirror arrangement is reflected back to the partially-transmissive reflector and relayed to produce an image of the object; a viewing lens arrangement for producing an optical image of the object which is viewable by an observer at an exit pupil at a viewing plane; wherein the objective lens has a beam path angle (α) which is an angle subtended from a point where an optical axis of the objective lens meets the object plane and defined by a distance along the optical axis from the object plane to the objective lens and a radial extent of the aperture stop; wherein the viewer has a viewing angle (β) which is an angle subtended from a point on the mirror arrangement at an optical axis of the mirror arrangement and defined by a distance along the optical axis from the mirror arrangement to the viewing plane and a radial extent of the exit pupil at the viewing plane; wherein the viewer is configured such that a displacement ratio of the beam path angle (α) to the viewing angle (β) is at least 3:1, whereby the observer is provided with a greater change in depth perception of the object being observed relative to an extent of displacement of a head of the observer. |
地址 |
Woking Surrey GB |