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US 2025/0093761 A1Published application
Stereoscopic optical system and image pickup apparatus
AssigneeCanon Kabushiki Kaisha
InventorsYuichi KOSAKA, Akira MIZUMA, Fumihiro SHINOBU
Life of this patent
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Abstract
A stereoscopic optical system includes two optical systems arranged in parallel. Each of the two optical systems includes, in order from an object side to an image side, a front group, an aperture stop, and a rear group. Predetermined inequalities are satisfied.
Claims14
A stereoscopic optical system comprising:
- two optical systems arranged in parallel,
- wherein each of the two optical systems includes, in order from an object side to an image side, a front group, an aperture stop, and a rear group,
- wherein the following inequalities are satisfied:
- 0.
- <
- (
- Din
- /
- L
- )
- ×
- F
- ≤
- 1.35
- 4.4
- ≤
- (
- f
- ×
- f
-
- 1
- +
- f
- ×
- f
-
- 2
- -
- f
-
- 1
- ×
- f
-
- 2
- )
- /
- f
- 2
- ≤
- 1
-
- 0
- .
- 0
- where L is a distance on an optical axis from a lens surface closest to an object in each of the two optical systems to an image plane, Din is a distance between the optical axes of lenses closest to the object in the two optical systems, F is an F-number of each of the two optical systems, f is a focal length of each of the two optical systems, f1 is a focal length of the front group in each of the two optical systems, and f2 is a focal length of the rear group in each of the two optical systems.
44 more elements
A stereoscopic optical system comprising:
- two optical systems arranged in parallel,
- wherein each of the two optical systems includes, in order from an object side to an image side, a front group, an aperture stop, and a rear group,
- wherein the following inequalities are satisfied:
- 0.4
- ≤
- (
- Lb
- /
- Din
- )
- /
- F
- ≤
- 1.5
- 4.4
- ≤
- (
- f
- ×
- f
-
- 1
- +
- f
- ×
- f
-
- 2
- -
- f
-
- 1
- ×
- f
-
- 2
- )
- /
- f
- 2
- ≤
- 1
-
- 0
- .
- 0
- where Lb is a distance on an optical axis from the aperture stop to an image plane in each of the two optical systems, Din is a distance between optical axes of lenses closest to an object in the two optical systems, F is an F-number of each of the two optical systems, f is a focal length of each of the two optical systems, f1 is a focal length of the front group in each of the two optical systems, and f2 is a focal length of the rear group in each of the two optical systems.
44 more elements
Dependencies are inferred from the claim text.