Ricoh patents an impact resistant lens cap

Pin It

Ricoh filed a patent 2012-93611 in Japan for an impact resistant lens cap. Here is the translated description taken from the Japanese Patent Office:

Fig.1 is an explanatory view in which showing the outline view of the camera as an imaging device with which the lens cap and lens barrel concerning the present invention are applied, and showing the stored condition of the movable body tube at the time of un-equipping with a lens cap.

Fig.2 is an explanatory view in which showing the outline view of the camera as an imaging device with which the lens cap and lens barrel concerning the present invention are applied, and showing the advance state of the movable body tube at the time of un-equipping with a lens cap.

Fig.3 is an explanatory view in which showing the outline view of the camera as an imaging device with which the lens cap and lens barrel concerning the present invention are applied, and showing the stored condition of the movable body tube at the time of wearing of a lens cap.

Fig.4 is drawing of longitudinal section showing an example of the camera with which it is equipped with the lens cap concerning the present invention, and is drawing of longitudinal section showing the stored condition of the movable body tube at the time of lens cap un-equipping.

Fig.5 is an enlarged drawing of the lens cap shown in Fig.3, and is the outline view which looked at the lens cap from the transverse-plane side of a camera.

Fig.6 is the outline view which looked at the lens cap shown in the Fig.5 from the back side.

Fig.7 is an outline view showing the state where removed the outside cover shown in Fig.5 and the inner cover member was viewed.

Fig.8 is a cross sectional view for describing the fitting relation of the inner cover member of a lens cap and outside cover component which are shown in the Fig.5 and Fig.6, and is a figure showing the state before the external force by a shock is added to an outside cover.

Fig.9 is a cross sectional view showing the state where the external force by a shock was added in the outside cover shown in the Fig.8.

Fig.10 is a partial expanded sectional view expanding and showing the head part of the lens barrel shown in Fig.4.

Fig.11 is a partial expanded sectional view of the head part of a lens barrel showing the engagement relation of the a pair of engaging pawl component and movable body tube which are shown in Fig.7.

Fig.12 is a partial expanded sectional view of the head part of the lens barrel for describing an operation of the lens cap concerning the present invention, and is an explanatory view showing a lens barrel and a lens cap when external force is not added to the lens cap.

Fig.13 is a partial expanded sectional view of the head part of the lens barrel for describing an operation of the lens cap concerning the present invention, and is an explanatory view showing a lens barrel and a lens cap when external force is added to a lens cap.

Fig.14 is a partial expanded sectional view of the head part of a lens barrel showing other examples of the engagement relation of the a pair of engaging pawl component and movable body tube which are shown in Fig.7.

This entry was posted in Ricoh and tagged . Bookmark the permalink. Trackbacks are closed, but you can post a comment.
  • Philippos

    While I do see their point, I cannot help thinking that for a lens cap, this is a bit too over-engineered.

    • Sahaja

      The diagrams for this lens cap patent look far more complex than the diagrams you see for zoom lens patent applications. I guess you have to go a long way to show there is something patentable about a lens cap design.

  • Harold Ellis

    what is lens cap?
    it is usually the first thing which flies to trash can right after the sun hood

    • HaroldIsATosser

      How old are you Harold? Why don’t you get a girlfriend?

      • http://haroldellis4444@gmail.com Harold Ellis

        58
        i had girlfriends already. I just need few BJs a week and thats all. For that is GF little waste of time when some one night hookup does the (B)job even better and you dont need to try to make her happy.

    • troll

      How old are you Harold? Why don’t you get a girlfriend?

    • Wurlitzer

      How old are you Harold? Why don’t you get a girlfriend?

      • Alann

        How old are you Harold? Why don’t you get a girlfriend?

        • How old are

          you Harold? Why don’t you get a girlfriend?

    • server

      How old are you Harold? Why don’t you get a girlfriend?

    • Tom

      How old are you Harold? Why don’t you get a girlfriend?

  • I should be shooting

    Great. Now where’s my GXR M A16?

  • aekn

    Now maybe Ricoh can help Pentax engineer a body cap that actually stays on the camera when used, not those silly white things.

  • Not a Troll

    Lens caps are important for storage. Sun hoods are your best bet to prevent damage to your lens. I hate nothing more than seeing a tourist walking the streets with a more expensive camera than mine, lens cap on and sun hood reversed. They don’t want to take photos. They just want to show off.

    • Warpig

      true

    • Philippos

      Not true.

      A Sun hood is only good when the sun causes you trouble, creating all those stupid artifacts and reflections inside your lens. In my bag, all my sun hoods are on the lenses reversed for saving space.
      Quite often I put a lens on my camera right off the bag, with the cap and the sun hood reversed. That doesn’t mean I don’t know what I’m doing.

      What I would really need is a magnetic cap that stays on without any locking system and is removed by a single pull, without pressing or twisting or any other elaborate movement.

      • Sahaja

        Tupperware lids make great lens caps if you can find one the right size

  • Back to top