JPH0320324U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of a macro adapter and an electronic still camera to which the adapter is attached, showing a first embodiment of the present invention, and FIGS. 2A and B show a polarizing filter used in the adapter shown in FIG. FIG. 2A shows the polarization state of the incident light when the filter is a linear polarization filter, FIG. 2B shows the polarization state of the incident light when the filter is a circular polarization filter, and FIG. 1 is a perspective view showing another specific example of the adapter and electronic still camera, FIG. 4 is a cross-sectional view of the electronic still camera showing the second embodiment of the present invention, and FIG. 5 is a perspective view of the adapter shown in FIG. 4. 6 is a diagram showing the transmission and reflection state of incident light of the half mirror used in the camera of FIG. 4.
FIG. 7 is a cross-sectional view of a camera equipped with a conventional macro adapter, and FIG. 8 is an explanatory diagram of the "jumping" phenomenon that occurs when photographing with the camera of FIG. 7. 2, 12, 32, 33...Photographing lens, 3, 3
6a... Strobe light source (light emitting means), 4, 21...
...Adapter body (frame member), 7, 22...
...first polarizing filter (first optical filter),
8, 23... Second polarizing filter (second optical filter), 10 , 25 ... Macro adapter (adapter for electronic imaging device), 15... Strobe light emitting window (light emitting means), 34... Half mirror , 37...
...Polarizing filter (optical filter).

Claims (1)

[Claims for Utility Model Registration] (1) A first optical filter having a first polarization direction or a first optical rotation direction; and a second polarization direction substantially different from the first polarization direction or the above. a second optical filter having a second optical rotation direction opposite to the first optical rotation direction; and said electronic imaging corresponding to said first optical filter and said second optical filter. a frame member configured to integrally hold the first and second optical filters by being inserted in the optical path of the photographing lens of the device and the light emitting means of the electronic imaging device; An adapter for an electronic imaging device characterized by comprising: (2) a half mirror that is arranged so as to be inserted in the optical path of the photographing lens and that transmits light having a first polarization direction or a first optical rotation direction preferentially toward its own imaging device; It is arranged so as to be inserted in the optical path of the light emitting means, and has a second polarization direction substantially different from the first polarization direction or a second optical rotation direction opposite to the first optical rotation direction. An electronic imaging device comprising: an optical filter;