Optical apparatus
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0 Petitions
Accused Products
Abstract
An optical system having a deformable mirror is such that, in order to minimize variation of an image position on an imaging plane, or of a ray position, in at least two states where shapes of the deformable mirror are different, first- and lower-order terms of an equation expressing a surface of the deformable mirror are changed in the two states. As a result, an optical system including variable optical-property elements such as a variable focal-length lens, a deformable mirror, and a variable prism, and an optical apparatus having the optical system can be provided which is small in power consumption, noiseless, short in response time, simple in mechanical structure, and low in cost, minimize variation of the image position on the imaging plane, and permits sufficient correction for aberration caused by a shape error or the like.
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Citations
54 Claims
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1-40. -40. (Cancel).
- 41. A variable optical-property element having positioning marks within a beam passing range of the variable optical-property element.
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44. An optical apparatus comprising:
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a variable optical-property element;
a frame that holds the variable optical-property element; and
positioning marks formed on the frame. - View Dependent Claims (50, 52, 54)
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45. An optical apparatus comprising:
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a variable optical-property element;
a frame that holds the variable optical-property element; and
positioning marks,wherein the positioning marks are provided on the frame or a member in a vicinity thereof.
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46. An optical apparatus comprising:
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a variable optical-property element;
a holder member that holds the variable optical-property element; and
positioning marks, wherein the positioning marks are provided in one of the following positions;
inside a beam passing range of the variable optical-property element;
on a circumference of a surface deformable portion of the variable optical-property element;
outside the circumference of the surface deformable portion;
on a frame on which the variable-optical property element is mounted; and
on a member arranged in a vicinity of the frame.
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47. A deformable mirror that satisfies one of the following conditions:
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0.3<
S1/S2<
0.995
0.4<
S1/S2<
0.95where S1 is an area of a beam passing portion of the deformable mirror, and S2 is an area of a surface deformable portion of the deformable mirror.
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48. An optical apparatus comprising:
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a deformable mirror;
an image sensor; and
a display element, wherein the deformable mirror satisfies one of the following conditions;
0.3<
S1/S2<
0.995
0.4<
S1/S2<
0.95where S1 is an area of a beam passing portion of the deformable mirror, and S2 is an area of a surface deformable portion of the deformable mirror.
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Specification