GB911990A - Improvements in optical sights - Google Patents
Improvements in optical sightsInfo
- Publication number
- GB911990A GB911990A GB3514160A GB3514160A GB911990A GB 911990 A GB911990 A GB 911990A GB 3514160 A GB3514160 A GB 3514160A GB 3514160 A GB3514160 A GB 3514160A GB 911990 A GB911990 A GB 911990A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sight
- blades
- optical
- optical unit
- sights
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000003287 optical effect Effects 0.000 title abstract 13
- 239000003086 colorant Substances 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 230000003071 parasitic effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/06—Testing the alignment of vehicle headlight devices
- G01M11/061—Details of the mechanical construction of the light measuring system
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optical Elements Other Than Lenses (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
911,990. Optical sights; optical adjusting apparatus. CIBIE, P. Oct. 13, 1960 [Oct. 30, 1959], No. 35141/60. Class 97 (1). An optical sight consists of several thin parallel opaque blades separated from one another by transparent gaps and arranged in a common support. As shown in Fig. 3, the opaque blades 5 are separated by gaps 6 and mounted in a support 7, one side 7a of which is fixed to a part 8, which is rotatable in a bush 9 on a supporting arm 10 so that it may occupy positions defined by a pin 11 slipped through holes in the part 8. The blades 6 may be of metal, glass or a synthetic substance and are preferably blackened to avoid parasitic reflections. The width of each gap and the length of each blade are preferably so chosen that the angle formed with the planes of the blades by the straight line joining two points which are sighted through one of the transparent gaps is equal to or less than the designed tolerance on the degree of parallelism between the planes of these blades and said straight line so that the straight line can be regarded as being parallel to the reference plane defined by one of the blades. The sight may be used for positioning an apparatus for adjusting vehicle head lamps. Thus, as shown in Fig. 6, the sight 12 is mounted by its arm 10 on a support 14 movable about a point 15 on an optical unit 13 which is carried by a stand 16 on a carriage 17. The axis of the optical unit is set parallel to the plane of the ground by using aiming sights (such as 18) placed on the ground near to the front and rear wheels of a vehicle 22. The sight is arranged with its blades perpendicular to the axis of the optical unit 13 and a mirror 23 reflects the image of the sights towards the sight 12. The complete assembly consisting of the optical unit and the optical sight is then displaced until the line of sight 4b is parallel to the sight blades. The axis of the optical unit is then positioned so that it is parallel to the line of travel of the vehicle. For this purpose the optical sight 12 is placed with its blades perpendicular to the axis of the optical unit 13 and aiming sights 25, Fig. 8, are placed on the head lamps 24 and the optical unit and the sight are displaced until the line of sight 4c passes through the tops of the two aiming sights. The aiming sights 25, as shown in Fig. 11, may each comprise a suction cap 28 for fixing the aiming sight to the head lamp, each suction cap being rigidly attached to a T-shaped supporting spheres 31, 32 of different diameters and contrasting colours.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR808869A FR1248089A (en) | 1959-10-30 | 1959-10-30 | Improvements to sights and their applications |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB911990A true GB911990A (en) | 1962-12-05 |
Family
ID=8720698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3514160A Expired GB911990A (en) | 1959-10-30 | 1960-10-13 | Improvements in optical sights |
Country Status (3)
| Country | Link |
|---|---|
| ES (1) | ES257713A1 (en) |
| FR (1) | FR1248089A (en) |
| GB (1) | GB911990A (en) |
-
1959
- 1959-10-30 FR FR808869A patent/FR1248089A/en not_active Expired
-
1960
- 1960-04-29 ES ES0257713A patent/ES257713A1/en not_active Expired
- 1960-10-13 GB GB3514160A patent/GB911990A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1248089A (en) | 1960-12-09 |
| ES257713A1 (en) | 1960-07-16 |
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