Patent ID: 9451146
Filing Date: 2016-09-20
CPC Classification: G02B,G03B,H04N

Claim Text:
1. A focus detecting apparatus comprising: an image capturing lens that allows light from a subject to be transmitted through the image capturing lens; a light-transmitting unit that emits a beam of light having a predetermined wavelength through the image capturing lens in order to perform active Auto-Focusing; a light-receiving unit that receives the beam of light through the image capturing lens emitted by the light-transmitting unit; and an optical film that reflects the beam of light that has passed through the image capturing lens and comprises one selected from the group consisting of a holographic optical element, a diffractive optical element, and a pellicle mirror, wherein: wherein, both the emitted light passing through the first exit pupil area and the received light passing through the second pupil area pass above the optical axis, or both the emitted light passing through the first exit pupil area and the received light passing through the second pupil area pass under the optical axis.