Methods and apparatus for implementing and/or using a camera device
View Patent ↗Methods and apparatus for implementing a camera having a depth which is less than the maximum length of the outer lens of at least one optical chain of the camera are described. In some embodiments a light redirection device, e.g., a mirror, is used to allow a relatively long optical chain with a relatively large non-circular outer lens. In some embodiments the light redirection device has a depth, e.g., front of camera to back of camera dimension, which is less than the maximum length of the aperture of the outer lens in the aperture's direction of maximum extent. Multiple optical chains with non-circular outer lenses arranged in different directions may and in some embodiments are used to capture images with the captured images being combined to generate a composite image.
1. A camera device, the camera device comprising:
a camera housing including a front surface and a rear surface having a thickness D where D is a distance between said front surface and said rear surface;
a first optical chain, including: i) a first light redirection device mounted in said housing, said first light redirection device being a first rectangular mirror having an edge extending along the first rectangular mirror's longest length at a first angle relative to a bottom of the camera housing, said longest length being greater than D, ii) a first non-circular aperture, and iii) a first sensor, said first non-circular aperture having a length less than or equal to D in a first direction and a length larger than D along a second direction perpendicular to the first direction, said second direction being at said first angle relative to the bottom of said camera housing; and
a second optical chain, including i) a second light redirection device mounted in said housing, said second light redirection device being a second rectangular mirror having an edge extending along the second rectangular mirror's longest length at a second angle relative to the bottom of the camera housing, ii) a second non-circular aperture, and iii) a second sensor, said second non-circular aperture having a length larger than D along a third direction, said third direction being at said second angle relative to the bottom of said camera housing, said first and second angles being different.
2. The camera device of claim 1 , further comprising:
a third optical chain, including: i) a third light redirection device mounted in said housing, said third light redirection device being a third rectangular mirror having an edge extending along the third rectangular mirror's longest length at a third angle relative to the bottom of the camera housing, ii) a third non-circular aperture, and iii) a third sensor, said third non-circular aperture having a length larger than D along a fourth direction, said fourth direction being at said third angle relative to the bottom of said camera housing, said first, second and third angles being different.
3. The camera device of claim 2 , further comprising:
a fourth optical chain, including: i) a fourth light redirection device mounted in said housing, said fourth light redirection device being a fourth rectangular mirror having an edge extending along the fourth rectangular mirror's longest length at a fourth angle relative to the bottom of the camera housing, ii) a fourth non-circular aperture, and iii) a fourth sensor, said fourth non-circular aperture having a length larger than D along a fifth direction, said fifth direction being at said fourth angle relative to the bottom of said camera housing, said first, second, third and fourth angles being different.
4. The camera device of claim 3 , further comprising:
a processor configured to generate a composite image from images captured by said first, second, third and fourth sensors.
5. The camera device of claim 4 , further comprising:
a display for displaying said composite image.
6. The camera device of claim 5 ,
wherein said first, second, third and fourth light redirection mirrors are first, second, third and fourth plane mirrors, respectively, and
wherein each of the first, second, third and fourth mirrors are oriented differently with respect to the bottom of the camera housing.
7. The camera device of claim 1 , wherein said first light redirection device is a plane mirror.
8. The camera device of claim 1 , wherein said first light redirection device is a 45 degree angled plane mirror which redirects light by 90 degrees.