Ocular mounting assembly

• US 6,704,141 B1
• Filed: 03/27/1997
• Issued: 03/09/2004
• Est. Priority Date: 07/19/1993
• Status: Expired due to Term

• Current Assignee: General Scientific Corporation (VISTA Information Technologies, Inc.)
• Original Assignee: General Scientific Corporation (VISTA Information Technologies, Inc.)
• Inventors: Nowak, David, Kim, Richard
• Primary Examiner(s): SIKDER, MOHAMMAD YUNUS
• Application Number:
  US08/825,196
• Time in Patent Office: 2,539 Days
• Field of Search: 359/411, 359/412, 359/413, 359/415, 351/58, 351/57, 351/221, 351/223, 351/49, 351/205, 351/47
• US Class Current: 359/411
• CPC Class Codes: G02B 23/18 for binocular arrangements focusing binocular pairs G02B7/06; adjusting pupillary distance of binocular pairs G02B7/12
• CPC Class Codes: G02B 25/00 Eyepieces; Magnifying glasses
• CPC Class Codes: G02B 25/002 Magnifying glasses
• CPC Class Codes: G02B 25/004 having binocular arrangement
• CPC Class Codes: G02B 7/002 Mounting on the human body
• CPC Class Codes: G02B 7/12 Adjusting pupillary distance of binocular pairs
• CPC Class Codes: G02C 3/003 Arrangements for fitting and securing to the head in the position of use
• CPC Class Codes: G02C 7/088 Lens systems mounted to spectacles
• CPC Class Codes: G02C 9/00 Attaching auxiliary optical parts auxiliary optical parts per se G02C7/08 - G02C7/16

Abstract

An ocular mounting assembly for adjustably mounting a pair of ocular devices, such as telemicroscopic loupes, to an eyeglass frame or head mount with linear and rotational adjustments, but with view angle being permanently preset in accordance with working distance. The ocular mounting assembly includes an adjustable ocular support assembly and an adjustable clamp assembly rotatably attached to the ocular support assembly. The ocular mounting assembly includes a housing and two slidable mounting arms to which the ocular devices are attached, the transverse cross-sectional shape of the housing interior and mounting arms being such that substantially all of the volume of the housing interior is consumed apart from close tolerances to facilitate the sliding motion, thus resulting in a structure which cooperates to assist in providing a substantially rigid assembly.

Claims

1. An ocular mounting assembly, comprising:

an ocular support assembly providing interpupillary distance—

adjustment for a pair of ocular devices attached to the support assembly, each ocular device being initially rotatable with respect to the support assembly at respective regions of rotation, the relative rotation between the pair of oculars establishing a convergence angle;

means for independently and permanently preventing the rotation of each ocular with respect to the support assembly at respective regions of rotation once a desired convergence angle has been achieved; and

an adjustable clamp assembly rotatably attached to the ocular support assembly providing height and view angle adjustment of the ocular devices and allowing the ocular devices to be flipped up out of the way when not needed.

2. The ocular mounting assembly as set forth in claim 1, wherein the adjustable ocular support assembly includes:

an ocular support assembly housing having a predetermined enclosed shape in transverse cross-section; and

a pair of ocular support arms slidably disposed within the assembly housing, the transverse cross-section of each support arm being aligned with each other in a mirror-image fashion such that when slidably disposed within the housing, the space therein is substantially consumed.

3. The ocular mounting assembly as set forth in claim 2, wherein the ocular support assembly housing features a rectangular-shaped internal cross-section;

and

each ocular support arm is L-shaped in transverse cross-section, and the two support arms are disposed symmetrically in mirror-image fashion within the housing.

4. The ocular mounting assembly as set forth in claim 2, wherein the adjustable ocular support assembly includes:

an ocular support assembly housing having a rigidly attached view angle hinge pin and each ocular support arm having a slot with a set of serrated teeth; and

an interpupillary adjustment knob having a set of serrated teeth that is inserted into an opening in the assembly housing for engagement with the serrated teeth in the slots of the ocular support arms,

wherein rotation of the interpupillary adjustment knob causes the ocular support arms to slide in and out of the assembly housing for adjustment of the interpupillary distance between the two ocular devices.

5. The ocular mounting assembly as set forth in claim 1, wherein the ocular devices are rotatably attached to the ends of the ocular support arms by screws which allow the rotational friction of the convergence angle and view direction adjustment to be varied prior to the ocular devices being permanently locked in place as a function of working distance.

6. The ocular mounting assembly as set forth in claim 1, wherein the adjustable clamp assembly includes:

a clamp assembly housing having a rigidly-attached flip-up hinge pin and an undercut channel;

a pair of clamp assembly members having slots that engage the flip-up hinge pin and a view angle hinge pin; and

a height adjustment rail having a rectangular-shaped undercut pad that engages the undercut channel of the clamp assembly housing to allow the height of the ocular devices to be adjusted,

wherein the view angle is adjusted by rotating the ocular support assembly about the view angle hinge pin and the ocular devices are flipped up out of the way by rotating the ocular support assembly and clamp assembly members about the flip-up hinge pin.

7. The ocular mounting assembly as set forth in claim 6, and further including a mounting clamp that clamps together with the height adjustment rail about a frame to rigidly attach the clamp assembly to the frame.

8. The ocular mounting assembly as set forth in claim 6, wherein the clamp assembly members are fastened together with screws that allow the rotational friction of the view angle adjustment and the flip-up of the ocular devices to be varied.

9. The ocular mounting assembly as set forth in claim 8, and further including a screw and nut for locking the clamp assembly housing to the height adjustment rail once the desired height of the ocular devices is selected.

10. A method for customizing an ocular mounting assembly, comprising the steps of:

providing an ocular support assembly having an interpupillary distance adjustment for a pair of ocular devices attached to the support assembly, a convergence angle associated with the ocular devices being adjustable via adjustment means;

providing an adjustable clamp assembly rotatably attached to the ocular support assembly providing height and view angle adjustment of the ocular devices and allowing the ocular devices to be flipped up out of the way when not in use;

determining a preferred convergence angle as a function of working distance; and

permanently fixing the ocular devices to the preferred convergence angle.

11. The method of claim 10, wherein the ocular support assembly includes:

an ocular support assembly housing having a predetermined enclosed shape in transverse cross-section; and

a pair of ocular support arms, each support arm having a substantially solid portion extending exteriorly of the assembly housing, the support arms slidably disposed within the assembly housing, the transverse cross-section of each support arm being aligned with each other such that when slidably disposed within the housing, the space therein is substantially consumed.

12. The method of claim 11, wherein the ocular support assembly housing features a rectangular-shaped internal cross-section;

and

each ocular support arm is L-shaped in transverse cross-section, and the two support arms are disposed symmetrically in mirror-image fashion within the housing.

13. The method of claim 10, wherein the step of permanently fixing the ocular devices to the preferred convergence angle includes:

applying an cover to the adjustment means.

14. The method of claim 10, wherein the convergence angle is fixed for a working distance of 13.85 inches.